Precise fixing clamp holder for metal workpiece

Abstract

The utility model relates to the technical field of metal workpiece machining, and discloses a precise fixing clamp holder for a metal workpiece, a disc-shaped metal workpiece is clamped and mounted by four groups of positioning clamp seats mounted at the upper part of a machining pedestal, and the lower parts of the four groups of positioning clamp seats are connected and mounted with a clamp seat driving gear at the upper part of a transmission gear through a transmission tooth groove; the transmission gears are rotationally installed through a fixed shaft of the fixed shaft support and meshed with the inner tooth groove side of the transmission tooth holder, the transmission tooth holder is driven by the driving motor to rotate so that the four sets of transmission gears can synchronously rotate to achieve synchronous sliding driving of the four sets of positioning clamping seats, and measurement assistance and complex calibration adjustment are not needed. The disc-shaped workpiece can be accurately clamped and positioned by means of synchronous inward moving, guiding and pushing of the four positioning clamping bases, the operation convenience and the clamping and positioning accuracy of the device can be effectively improved, the clamping head bases are of a split type installation structure, the clamping head bases can be flexibly selected and replaced according to the clamping requirement, and the clamping efficiency is improved. And the use flexibility of the device is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of metal workpiece processing technology, specifically to a precision clamping device for metal workpieces. Background Technology

[0002] Metal workpieces are crucial components in mechanical structures. During metal workpiece machining, specific holes and slots need to be machined on the upper part of the workpiece to achieve its structural functions. Considering the machining accuracy of these holes and slots, a clamping device is required to hold and position the metal workpiece. In machining, the clamping device holds and fixes the workpiece, ensuring it maintains a specific position and orientation under various external forces to facilitate the machining of slots and holes, thereby guaranteeing machining accuracy and product quality. It is an indispensable and important device in metal workpiece machining.

[0003] Most of the clamping devices on the market currently use an outer edge pressing clamping method. They rely on four sets of independently adjustable clamping seats to contact and press against the sides of the metal workpiece to complete the overall support and fixation of the workpiece. However, for disc-shaped metal workpieces, since their outer edges are arc-shaped, there is no calibration reference on the sides when clamping and installing them. It is necessary to adjust and calibrate the four sets of clamping seats multiple times to complete the positioning and installation of the disc-shaped metal workpiece. This is not only complicated to operate, but also difficult to guarantee the positioning accuracy after installation. It cannot be used for the processing needs of workpieces with high precision requirements. Therefore, a precision clamping device for metal workpieces is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a precision clamp for fixing metal workpieces to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precision metal workpiece clamping device, comprising a processing table, a positioning clamp, a transmission gear, a transmission gear seat, and a drive motor, wherein the transmission gear seat is driven to rotate and is mounted on the lower part of the processing table by the drive motor;

[0006] Multiple positioning clamps and transmission gears are provided. The transmission gears are rotatably mounted on a fixed axis at the transmission connection between the positioning clamp and the transmission gear seat. Several positioning clamps are synchronously slidably mounted on the upper part of the processing table through the transmission gears. A clamping head seat is detachably mounted on the upper part of the positioning clamp.

[0007] Preferably, the lower part of the above-mentioned processing table is fixedly installed with a mounting shaft seat, and the transmission gear seat is rotatably mounted on the middle part of the mounting shaft seat. Both the inner and outer circumferential sides of the transmission gear seat are provided with meshing tooth grooves.

[0008] Preferably, a reducer is provided at the front of the drive motor. The reducer is fixedly installed on the mounting shaft seat by a bracket, and the drive motor is fixedly installed on the side of the reducer by bolts. The shaft end of the drive motor is fixedly installed on the drive input shaft end of the reducer.

[0009] Preferably, a gear seat drive gear is fixedly installed on the drive output shaft end of the reducer, and the gear seat drive gear is meshed with the meshing tooth groove on the outer periphery of the transmission gear seat.

[0010] Preferably, a fixed shaft support is uniformly fixedly mounted on the upper part of the mounting shaft seat in a circumferential shape. The transmission gear is rotatably mounted on the middle part of the fixed shaft support through a rotating shaft. The transmission gear is meshed with the meshing tooth groove on the inner circumferential side of the transmission gear seat.

[0011] Preferably, the upper part of the above-mentioned processing table is provided with guide grooves evenly distributed in a circular shape, the positioning clamp is slidably fitted into the inner side of the guide groove, the upper part of the shaft of the transmission gear is fixedly installed with a clamp drive gear, the lower part of the positioning clamp is provided with a long groove, and a transmission tooth groove is provided on one side of the inner side of the long groove, and the clamp drive gear is meshed with the transmission tooth groove.

[0012] Preferably, the end of the positioning clamp is L-shaped, and the rear part of the clamping head is fitted and supported by the protrusion at the end of the positioning clamp. A mounting positioning post is fixed on the upper side of the end of the positioning clamp. The clamping head is installed by aligning and inserting with the mounting positioning post through a plug-in structure. A fastening bolt is installed in the screw hole in the middle of the clamping head. The clamping head is fixedly installed to the end of the positioning clamp through the fastening bolt.

[0013] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0014] This fixed clamping device employs a four-jaw symmetrical clamping structure for disc-shaped metal workpieces. Four sets of positioning clamps mounted on the upper part of the machining table clamp the disc-shaped metal workpiece. The lower part of the four positioning clamps is connected to the upper clamping drive gear via transmission gear grooves. The transmission gear is mounted on a fixed axis support and meshes with the inner tooth groove of the transmission gear. A drive motor drives the transmission gear to rotate, causing the four sets of transmission gears to rotate synchronously, achieving synchronous sliding drive of the four positioning clamps. The structure is simple and reliable, requiring no measurement assistance or complex calibration adjustments. Precise clamping and positioning of the disc-shaped workpiece can be achieved solely through the synchronous inward movement and pushing of the four positioning clamps. This effectively improves the ease of operation and clamping accuracy of the device. Furthermore, the clamping head adopts a split installation structure, allowing for flexible selection and replacement of the clamping head according to clamping needs, greatly enhancing the flexibility of the device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall installation three-dimensional structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the installation structure of the transmission gear of this utility model on the lower part of the machining table;

[0018] Figure 3 This is a schematic diagram of the installation structure of the transmission gear and transmission gear seat of this utility model;

[0019] Figure 4 This is a schematic diagram of the mounting structure of the clamping head seat and positioning clamp seat of this utility model;

[0020] Figure 5 This is a schematic diagram of the installation structure of the transmission gear and positioning clamp of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Machining table; 2. Positioning clamp; 3. Transmission gear; 4. Transmission gear seat; 5. Drive motor; 6. Mounting shaft seat; 7. Reducer; 8. Gear seat drive gear; 9. Fixed shaft support; 10. Clamping seat drive gear; 11. Transmission gear groove; 12. Guide slide; 13. Clamping head seat; 14. Mounting positioning column. 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. 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.

[0023] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0024] Example

[0025] Please see Figure 1-5 This utility model provides a technical solution: a precision metal workpiece clamping device, including a machining table 1, a positioning clamp 2, a transmission gear 3, a transmission gear seat 4, and a drive motor 5. The transmission gear seat 4 is driven to rotate and is mounted on the lower part of the machining table 1 by the drive motor 5. Specifically, see attached... Figure 3 As shown, the transmission gear seat 4 is a ring-shaped structure with an upper opening. To facilitate transmission connection, meshing tooth grooves are provided on both the inner and outer circumferences of the transmission gear seat 4, as shown in the attached figure. Figure 2 As shown, in order to facilitate the rotational mounting support of the transmission gear seat 4, a mounting bearing 6 is fixedly installed on the lower part of the machining table 1, and the transmission gear seat 4 is rotatably mounted on the middle of the mounting bearing 6.

[0026] Drive motor 5 is the working drive structure of transmission gear seat 4, as shown in the attached figure. Figure 3 As shown, in order to improve transmission stability, a reducer 7 is provided at the front of the drive motor 5. The reducer 7 is fixedly installed on the mounting shaft seat 6 by a bracket support. The drive motor 5 is fixedly installed on the side of the reducer 7 by bolts. The shaft end of the drive motor 5 is fixedly installed on the drive input shaft end of the reducer 7. In order to realize the transmission of driving force, a gear seat drive gear 8 is fixedly installed on the drive output shaft end of the reducer 7. The gear seat drive gear 8 is meshed with the meshing tooth groove on the outer periphery of the transmission gear seat 4.

[0027] This device has four positioning clamps 2 and four transmission gears 3. The transmission gears 3 are rotatably mounted on a fixed axis at the transmission connection between the positioning clamp 2 and the transmission gear seat 4 for synchronous transmission of driving force, as shown in the attached diagram. Figure 3 As shown, in order to support the transmission gear 3, a fixed shaft support 9 is uniformly fixedly installed in a circular shape on the upper part of the mounting shaft seat 6. The transmission gear 3 is rotatably mounted on the fixed shaft support 9 through a rotating shaft. The transmission gear 3 is meshed with the meshing tooth groove on the inner circumference side of the transmission gear seat 4.

[0028] To facilitate the sliding guide installation of the positioning clamp 2, see attached... Figure 1 As shown, guide grooves 12 are evenly distributed in a circular pattern on the upper part of the machining table 1. The positioning clamp 2 is slidably fitted into the inner side of the guide grooves 12. In order to achieve synchronous transmission, as shown in the attached figure... Figure 5As shown, a clamping drive gear 10 is fixedly installed on the upper part of the shaft of the transmission gear 3. A long groove is provided at the lower part of the positioning clamp 2, and a transmission tooth groove 11 is provided on one side of the inner side of the long groove. The clamping drive gear 10 meshes with the transmission tooth groove 11. The four positioning clamps 2 are synchronously slidably installed on the upper part of the machining table 1 through the transmission gear 3. This fixed clamping device adopts a four-jaw symmetrical clamping structure for disc-shaped metal workpieces. The disc-shaped metal workpiece is clamped and installed using four sets of positioning clamps 2 installed on the upper part of the machining table 1. The lower part of the four sets of positioning clamps 2... The transmission gear 3 is connected and installed to the upper clamping drive gear 10 via the transmission gear groove 11. The transmission gear 3 is mounted and rotated on a fixed axis via the fixed axis support 9 and meshes with the inner tooth groove side of the transmission gear seat 4. The transmission gear seat 4 is driven to rotate by the drive motor 5, which can make the four sets of transmission gears 3 rotate synchronously to achieve synchronous sliding drive of the four sets of positioning clamps 2. The structure is simple and reliable. No measurement assistance or complicated calibration and adjustment are required. The precise clamping and positioning of the disc-shaped workpiece can be completed by relying on the synchronous inward movement and pushing of the four sets of positioning clamps 2, which can effectively improve the operation convenience and clamping and positioning accuracy of the device.

[0029] To accommodate the clamping and installation of different types of workpieces, a clamping head seat 13 is detachably installed on the upper part of the positioning clamp 2, as detailed in the attached document. Figure 4 As shown, the end of the positioning clamp 2 is L-shaped. The rear part of the clamping head 13 is fitted and supported by the protrusion at the end of the positioning clamp 2, providing stable support for the clamping head 13. To facilitate the installation and positioning of the clamping head 13, a mounting positioning post 14 is fixed on the upper side of the end of the positioning clamp 2. The clamping head 13 is installed by inserting it into the mounting positioning post 14 through a socket structure. To lock and limit the clamping head 13 after installation, a fastening bolt is installed in the screw hole in the middle of the clamping head 13. The clamping head 13 is fixed to the end of the positioning clamp 2 through the fastening bolt. The clamping head 13 adopts a split installation structure, and the clamping head 13 can be flexibly selected and replaced according to clamping needs, which greatly improves the flexibility of the device.

[0030] Working principle or structural principle: In the initial state, the four sets of positioning clamps 2 are in the maximum clamping position. During operation, the corresponding clamping head 13 is selected according to the workpiece specifications and type. Then, the insertion hole at the lower part of the clamping head 13 is aligned with the mounting positioning post 14 at the upper part of the positioning clamp 2. The clamping head 13 is then installed on the upper part of the positioning clamp 2 through the insertion hole positioning. After that, the clamping head 13 is locked and fixed by fastening the fastening studs, completing the connection and installation of the clamping head 13. Then, the disc-shaped workpiece is placed in the middle of the processing table 1 and the device is started. The drive motor 5 drives the transmission gear seat 4 to rotate. In the rotation process, the transmission gear seat 4 is supported by the mounting shaft seat 6 and rotates on a fixed axis. Through the meshing of the gears, it drives the four sets of transmission gears 3 to drive the clamping seat drive gear 10 to rotate synchronously. The rotating clamping seat drive gear 10 meshes with the transmission gear 11 and drives the four sets of positioning clamps 2 to move synchronously inward. Relying on the synchronous inward movement of the four sets of positioning clamps 2, the disc-shaped workpiece is guided to the center of the processing table 1. The disc-shaped workpiece can be accurately clamped and positioned without the need for measurement assistance and complicated calibration and adjustment. Afterward, the four sets of positioning clamps 2 clamp and fix the disc-shaped workpiece by side pressing, thus completing the workpiece clamping and positioning work.

[0031] In summary, this fixed clamping device adopts a four-jaw symmetrical clamping structure for disc-shaped metal workpieces. It utilizes four sets of positioning clamps 2 mounted on the upper part of the processing table 1 to clamp and install the disc-shaped metal workpiece. The lower part of the four sets of positioning clamps 2 is connected to the clamping drive gear 10 on the upper part of the transmission gear 3 via transmission gear grooves 11. The transmission gear 3 is mounted on a fixed axis and rotates on a fixed axis via a fixed axis support 9, meshing with the inner tooth groove side of the transmission gear seat 4. The drive motor 5 drives the transmission gear seat 4 to rotate, causing the four sets of transmission gears 3 to rotate synchronously, achieving synchronous sliding drive of the four sets of positioning clamps 2. The structure is simple and reliable, requiring no measurement assistance or complex calibration adjustments. Precise clamping and positioning of the disc-shaped workpiece can be achieved solely through the synchronous inward movement and pushing of the four sets of positioning clamps 2, effectively improving the ease of operation and clamping accuracy of the device. Furthermore, the clamping head seat 13 adopts a split installation structure, allowing for flexible selection and replacement of the clamping head seat 13 according to clamping needs, greatly improving the flexibility of the device.

[0032] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A precision clamping device for metal workpieces, comprising a machining table (1), a positioning clamp (2), a transmission gear (3), a transmission gear seat (4), and a drive motor (5), characterized in that: The transmission gear seat (4) is driven to rotate and is mounted on the lower part of the machining table (1) by the drive motor (5); Multiple positioning clamps (2) and transmission gears (3) are provided. The transmission gears (3) are fixedly and rotatably installed at the transmission connection between the positioning clamps (2) and the transmission gear seat (4). Several positioning clamps (2) are synchronously slidably installed on the upper part of the processing table (1) through the transmission gears (3). The upper part of the positioning clamps (2) is detachably equipped with a clamping head seat (13).

2. The precision clamping device for metal workpieces according to claim 1, characterized in that: The lower part of the processing table (1) is fixedly installed with a mounting shaft seat (6), and the transmission gear seat (4) is rotatably mounted on the middle part of the mounting shaft seat (6). The inner and outer circumferential sides of the transmission gear seat (4) are provided with meshing tooth grooves.

3. The precision clamping device for metal workpieces according to claim 2, characterized in that: The front of the drive motor (5) is provided with a reducer (7). The reducer (7) is fixedly installed on the mounting shaft seat (6) by a bracket. The drive motor (5) is fixedly installed on the side of the reducer (7) by bolts. The shaft end of the drive motor (5) is fixedly installed on the drive input shaft end of the reducer (7).

4. The precision clamping device for metal workpieces according to claim 3, characterized in that: The drive output shaft end of the reducer (7) is fixedly mounted with a gear seat drive gear (8), which meshes with the meshing tooth groove on the outer periphery of the transmission gear seat (4).

5. The precision clamping device for metal workpieces according to claim 2, characterized in that: The upper part of the mounting shaft seat (6) is uniformly fixedly mounted with a fixed shaft support (9) in a circular shape. The transmission gear (3) is mounted in the middle of the fixed shaft support (9) through a rotating shaft to support the fixed shaft rotation. The transmission gear (3) is meshed with the meshing tooth groove on the inner circumference side of the transmission gear seat (4).

6. The precision clamping device for metal workpieces according to claim 5, characterized in that: The upper part of the processing table (1) is evenly provided with guide grooves (12) in a circular shape. The positioning clamp (2) is slidably fitted into the inner side of the guide groove (12). The upper part of the shaft of the transmission gear (3) is fixedly installed with a clamp drive gear (10). The lower part of the positioning clamp (2) is provided with a long groove. One side of the inner side of the long groove is provided with a transmission tooth groove (11). The clamp drive gear (10) meshes with the transmission tooth groove (11).

7. The precision clamping device for metal workpieces according to claim 1, characterized in that: The end of the positioning clamp (2) is L-shaped. The rear part of the clamping head (13) is fitted and supported by the protrusion at the end of the positioning clamp (2). A mounting positioning post (14) is fixed on the upper side of the end of the positioning clamp (2). The clamping head (13) is aligned and inserted with the mounting positioning post (14) through a plug structure. A fastening bolt is installed in the screw hole in the middle of the clamping head (13). The clamping head (13) is fixedly installed to the end of the positioning clamp (2) through the fastening bolt.

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