Clamping structure for index plate station

Abstract

The utility model discloses a clamping structure for an index plate station, which relates to the field of machining and comprises an index plate main body, a U-shaped plate is mounted in the middle of the upper end of the index plate main body, clamping plates are arranged on the left inner wall and the right inner wall of the index plate main body, a first electric cylinder is mounted at the right end of the U-shaped plate, and a second electric cylinder is mounted at the right end of the U-shaped plate. The output end of the first electric cylinder movably penetrates through the right inner wall of the U-shaped plate and is movably connected with the clamping plate on the right side, a shell is installed at the left end of the U-shaped plate, and a driving component is arranged in the shell and used for driving the clamping plate on the left side to rotate. A workpiece can be driven to rotate through the cooperation of the driving component and the clamping plate, the workpiece does not need to be disassembled and assembled again, the operation steps of workers are reduced, the working efficiency is improved, the bottom of the workpiece can be supported through the supporting plate, and the working efficiency is improved. The workpiece is prevented from shaking or inclining due to gravity or other external force in the machining process, and it is guaranteed that the workpiece keeps stable in the machining process.

Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to a clamping structure for an indexing plate station. Background Technology

[0002] Indexing plates are machine tool accessories that clamp workpieces on a chuck or between two centers, allowing them to rotate, index, and position. Based on their transmission and indexing methods, they can be classified into worm gear indexing plates, dial indexing plates, hole disc indexing plates, grooved disc indexing plates, end gear disc indexing plates, and other indexing plates. They are driven by AC or DC servo motors, with a multi-pitch worm gear mechanism, and utilize a hydraulic ring-locking device. Combined with a robust rigid sealing structure, they are widely used in milling machines, drilling machines, and machining centers. When used with a four-axis operating interface on a machine tool, they can perform simultaneous four-axis machining.

[0003] Existing technology (publication number: CN 217668264 U) discloses a CNC indexing plate with a clamping structure, relating to the field of machining technology. It includes an indexing plate body, on which an electromagnetic chuck is embedded, and a metal pad is magnetically connected to the electromagnetic chuck. An inclined adjustment table is bolted to the metal pad, and a vise is bolted to the inclined adjustment table. The inclined adjustment table includes a lower plate, an upper plate, an adjusting slider, and a push screw. The upper plate is hinged to the lower plate via a pin, and the adjusting slider is located between the lower and upper plates.

[0004] Although the aforementioned patent uses an inclined adjustment table to adjust the machining surface, rotating the push screw changes the position of the adjustment slider between the lower and upper plates, thereby adjusting the tilt angle of the vise on the upper plate to meet the requirements of inclined machining, it has the following drawbacks: when machining other surfaces of the workpiece, the workpiece needs to be disassembled and reassembled, increasing the operator's steps and affecting work efficiency. Therefore, a clamping structure for the indexing plate station is proposed. Utility Model Content

[0005] The main purpose of this utility model is to provide a clamping structure for an indexing plate station, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A clamping structure for an indexing plate station includes an indexing plate body. A U-shaped plate is installed at the upper middle part of the indexing plate body. Clamping plates are provided on the left and right inner walls of the indexing plate body. A first electric cylinder is installed at the right end of the U-shaped plate. The output end of the first electric cylinder extends through the right inner wall of the U-shaped plate and is movably connected to the clamping plate on the right side. A housing is installed at the left end of the U-shaped plate. A driving component is provided inside the housing. The driving component is used to drive the left clamping plate to rotate.

[0008] Preferably, the driving component includes a first motor, which is installed at the left end of the U-shaped plate and located inside the housing. The output end of the first motor is fixedly connected to a worm gear, the rear end of which is movably connected to the rear inner wall of the housing. The worm gear is meshed with a worm wheel, and a connecting shaft is fixedly sleeved inside the worm wheel. The right end of the connecting shaft movably passes through the left inner wall of the U-shaped plate and is fixedly connected to the clamping plate on the left side.

[0009] Preferably, the front end of the U-shaped plate is provided with a rectangular groove, and two second electric cylinders are installed on the upper wall of the rectangular groove, which are symmetrically distributed from left to right. The output ends of the two second electric cylinders are movably extended through the lower wall of the U-shaped plate and are jointly fixedly connected to a support plate.

[0010] Preferably, guide rods are installed at the four lower corners of the support plate, and the four guide rods are movably inserted into the rectangular groove.

[0011] Preferably, the upper end of the support plate is provided with a rectangular through groove, and a second motor is installed at the rear end of the support plate. The output end of the second motor is movably inserted into the rectangular through groove and fixedly connected with a positive and negative threaded rod. The positive and negative threaded rod is movably connected to the rear inner wall of the rectangular through groove. Two symmetrically distributed moving blocks are threaded on the outer surface of the positive and negative threaded rod. Both moving blocks are movably connected in the rectangular through groove, and a moving plate is installed at the upper end of both moving blocks.

[0012] Preferably, each of the two movable plates is equipped with a number of rotatable rollers at one end that is close to the other.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By setting up the drive components and clamping plates to work together, the workpiece can be rotated. When other surfaces of the workpiece need to be processed, the output end of the first motor is controlled to drive the worm gear to rotate. The worm gear drives the worm wheel to rotate. The worm wheel drives the clamping plate on the left side to rotate through the connecting shaft. When the clamping plate rotates, the workpiece can be rotated. There is no need to disassemble and reassemble the workpiece, which reduces the number of operation steps for workers and improves work efficiency.

[0015] 2. By setting up a support plate, the bottom of the workpiece can be supported. During use, the second electric cylinder is controlled to drive the support plate to move upward and closer to the bottom of the workpiece, preventing the workpiece from shaking or tilting due to gravity or other external forces during processing. This ensures the stability of the workpiece during processing and improves processing accuracy. At the same time, by setting up positive and negative threaded rods and a moving plate together, the front and back of the workpiece can be fixed, further improving the stability of processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the entire structure presented in this embodiment;

[0017] Figure 2 This is a schematic diagram of another viewpoint structure in this embodiment;

[0018] Figure 3 This is a schematic diagram of the drive component in this embodiment;

[0019] Figure 4 This is a schematic diagram of the support plate in this embodiment.

[0020] In the diagram: 1. Indexing plate body; 2. U-shaped plate; 3. Rectangular groove; 4. Support plate; 5. Clamping plate; 6. First electric cylinder; 7. Housing; 8. Drive component; 9. Second electric cylinder; 10. Guide rod; 81. First motor; 82. Worm gear; 83. Worm wheel; 84. Connecting shaft; 11. Rectangular through groove; 12. Second motor; 13. Positive and negative threaded rod; 14. Moving block; 15. Moving plate; 16. Roller. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figures 1-4As shown, a clamping structure for an indexing plate station includes an indexing plate body 1. A U-shaped plate 2 is installed at the upper middle part of the indexing plate body 1. Clamping plates 5 are provided on both the left and right inner walls of the indexing plate body 1. A first electric cylinder 6 is installed at the right end of the U-shaped plate 2. The output end of the first electric cylinder 6 extends through the right inner wall of the U-shaped plate 2 and is movably connected to the clamping plate 5 on the right side. The first electric cylinder 6 is used to drive the clamping plate 5 on the right side to move left and right. At the same time, the clamping plate 5 on the right side can rotate on the output end of the first electric cylinder 6. A housing 7 is installed at the left end of the U-shaped plate 2. In use, the indexing plate body 1 is installed on the machine tool, the workpiece is placed between the two clamping plates 5, and the first electric cylinder 6 on the right side is controlled to drive the clamping plate 5 on the right side to move to the left to fix the workpiece, so that processing can be performed. When processing other surfaces of the workpiece, the workpiece needs to be disassembled and reassembled, which increases the operator's operation steps.

[0025] To improve the above-mentioned drawbacks, a driving component 8 is provided inside the housing 7. The driving component 8 is used to drive the left clamping plate 5 to rotate. The driving component 8 includes a first motor 81, which is installed at the left end of the U-shaped plate 2 and is located inside the housing 7. The output end of the first motor 81 is fixedly connected to a worm gear 82. The rear end of the worm gear 82 is movably connected to the rear inner wall of the housing 7. The worm gear 82 is meshed with a worm wheel 83. The worm gear 82 and the worm wheel 83 have a self-locking property. A connecting shaft 84 is fixedly sleeved inside the worm wheel 83. The right end of the connecting shaft 84 movably passes through the left inner wall of the U-shaped plate 2 and is fixedly connected to the left clamping plate 5. In use, the workpiece is suspended and fixed. When it is necessary to process other surfaces of the workpiece, the output end of the first motor 81 is controlled to drive the worm gear 82 to rotate. The worm gear 82 drives the worm wheel 83 to rotate. The worm wheel 83 drives the left clamping plate 5 to rotate through the connecting shaft 84. When the clamping plate 5 rotates, the workpiece can be rotated. There is no need to disassemble and reassemble the workpiece, which reduces the operator's operation steps and improves work efficiency.

[0026] In addition, when the workpiece is suspended in the air, it may sway or tilt during processing due to gravity or other external forces, requiring support for the bottom of the workpiece. To this end, a rectangular groove 3 is provided at the front end of the U-shaped plate 2. Two second electric cylinders 9 are installed on the upper wall of the rectangular groove 3, which are symmetrically distributed on the left and right. The output ends of the two second electric cylinders 9 are movably extended to the lower wall of the U-shaped plate 2 and are fixedly connected to the support plate 4. After the workpiece rotates, the second electric cylinders 9 are controlled to drive the support plate 4 to move upward and closer to the bottom of the workpiece, preventing the workpiece from swaying or tilting due to gravity or other external forces during processing, ensuring the stability of the workpiece during processing, and improving processing accuracy. When the workpiece needs to rotate, the second electric cylinders 9 are controlled to drive the support plate 4 to move downward.

[0027] Guide rods 10 are installed at the four corners of the lower end of the support plate 4. The four guide rods 10 are movably inserted into the rectangular groove 3. The guide rods 10 are used to improve the stability of the movement of the support plate 4.

[0028] Furthermore, to prevent the workpiece from moving back and forth during processing, a rectangular through slot 11 is provided at the upper end of the support plate 4. A second motor 12 is installed at the rear end of the support plate 4. The output end of the second motor 12 extends movably into the rectangular through slot 11 and is fixedly connected to a positive and negative threaded rod 13. The positive and negative threaded rod 13 is movably connected to the rear inner wall of the rectangular through slot 11. Two symmetrically distributed moving blocks 14 are threaded on the outer surface of the positive and negative threaded rod 13. Both moving blocks 14 are movably connected in the rectangular through slot 11. Moving plates 15 are installed at the upper ends of both moving blocks 14. In use, the second motor 12 is controlled to drive the positive and negative threaded rod 13 to rotate. The positive and negative threaded rod 13 drives the two moving plates 15 to move closer to each other through the moving blocks 14, thereby fixing the front and back of the workpiece.

[0029] To reduce the friction between the moving plate 15 and the front and back of the workpiece, several rotatable rollers 16 are installed at the ends of the two moving plates 15 that are close to each other. When the workpiece needs to rotate half a turn, the support plate 4 can be directly controlled to move downward.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A clamping structure for an indexing plate station, comprising an indexing plate body (1), characterized in that: A U-shaped plate (2) is installed at the upper middle part of the indexing plate body (1). A clamping plate (5) is provided on the left inner wall and the right inner wall of the indexing plate body (1). A first electric cylinder (6) is installed at the right end of the U-shaped plate (2). The output end of the first electric cylinder (6) extends through the right inner wall of the U-shaped plate (2) and is movably connected to the clamping plate (5) on the right side. A housing (7) is installed at the left end of the U-shaped plate (2). A driving component (8) is provided inside the housing (7). The driving component (8) is used to drive the left clamping plate (5) to rotate.

2. The clamping structure for the indexing plate station according to claim 1, characterized in that: The driving component (8) includes a first motor (81), which is installed at the left end of the U-shaped plate (2). The first motor (81) is located inside the housing (7). The output end of the first motor (81) is fixedly connected to a worm (82). The rear end of the worm (82) is movably connected to the rear inner wall of the housing (7). The worm (82) is meshed with a worm wheel (83). A connecting shaft (84) is fixedly sleeved inside the worm wheel (83). The right end of the connecting shaft (84) movably passes through the left inner wall of the U-shaped plate (2) and is fixedly connected to the left clamping plate (5).

3. The clamping structure for the indexing plate station according to claim 1, characterized in that: The front end of the U-shaped plate (2) is provided with a rectangular groove (3). Two second electric cylinders (9) are installed on the upper wall of the rectangular groove (3) and are symmetrically distributed on the left and right. The output ends of the two second electric cylinders (9) are movably inserted through the lower wall of the U-shaped plate (2) and are fixedly connected to a support plate (4).

4. The clamping structure for the indexing plate station according to claim 3, characterized in that: The support plate (4) has guide rods (10) installed at the four corners of its lower end, and the four guide rods (10) are movably inserted into the rectangular groove (3).

5. The clamping structure for the indexing plate station according to claim 3, characterized in that: The upper end of the support plate (4) is provided with a rectangular through groove (11). A second motor (12) is installed at the rear end of the support plate (4). The output end of the second motor (12) is movably inserted into the rectangular through groove (11) and fixedly connected to a positive and negative threaded rod (13). The positive and negative threaded rod (13) is movably connected to the rear inner wall of the rectangular through groove (11). The outer surface of the positive and negative threaded rod (13) is threaded with two symmetrically distributed moving blocks (14). Both moving blocks (14) are movably connected in the rectangular through groove (11). A moving plate (15) is installed at the upper end of both moving blocks (14).

6. The clamping structure for the indexing plate station according to claim 5, characterized in that: Each of the two movable plates (15) is equipped with several rotatable rollers (16) at one end that is close to each other.

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