A machining positioning table

Abstract

The utility model discloses a kind of machining positioning table, including base, the top of base is equipped with placing table, the side of placing table is equipped with fixed base, the side of fixed base is connected with two groups of clamping arms by drive mechanism, the side of two groups of clamping arms is equipped with V-shaped clamping block, the top of placing table is equipped with vacuum adsorption mechanism, the utility model can drive two groups of clamping arms and clamping block reverse movement and clamping workpiece by drive mechanism, to realize the preliminary positioning of workpiece, workpiece bottom can be generated suction force by vacuum adsorption mechanism, workpiece is firmly fixed on placing table, to ensure that workpiece does not shift during processing, after processing is completed, first, vacuum adsorption mechanism is closed to release suction, then drive mechanism can drive two groups of clamping arms reverse separation, i.

Description

Technical Field

[0001] This utility model relates to the field of machining equipment technology, specifically to a machining positioning table. Background Technology

[0002] In the field of machining, a positioning table is a special device used to fix the position and calibrate the posture of a workpiece during the machining process. Its core function is to ensure that the workpiece remains stable and in a preset, precise position during machining, providing a reliable reference for subsequent machining operations, thereby ensuring machining accuracy.

[0003] Existing machining positioning tables often suffer from complex structures or inconvenient adjustments: some rely on multiple sets of independent adjustment components, requiring separate adjustments to the positioning structures on both sides, which can easily lead to centering deviations; others achieve positioning through complex transmission mechanisms, which are not only costly but also have a high failure rate. Therefore, it is necessary to design a machining positioning table to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to provide a machining positioning table to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a machining positioning table, including a base, a placement platform on the top of the base, a fixed seat installed on one side of the placement platform, two sets of clamping arms slidably connected to one side of the fixed seat, V-shaped clamping blocks installed on the opposite sides of the two sets of clamping arms, a cavity is opened inside the fixed seat, a driving mechanism is provided inside the cavity to facilitate the reverse movement of the two sets of clamping arms and the two sets of clamping blocks, and a vacuum adsorption mechanism is provided on the top of the placement platform to facilitate workpiece fixation.

[0006] Preferably, the driving mechanism includes an electric telescopic rod. Two sets of first movable slots are provided on one side of the cavity, and a set of second movable slots are provided on the other side. Two sets of sliding rods are provided inside the cavity and slidably connected to two sets of sliding seats. A rack plate is provided on one side of each set of sliding seats. A rotating shaft is rotatably connected to the center of the inner side of the cavity, and a circular gear that meshes with the two sets of rack plates is sleeved on its outer ring. A connecting block passes through the inner side of the second movable slot. One end of the connecting block is connected to one side of one set of sliding seats, and the position near the other end is connected to one end of the electric telescopic rod installed on one side of the fixed seat. One end of each of the two sets of clamping arms passes through the inner side of the two sets of first movable slots and is connected to one side of the corresponding sliding seat.

[0007] Preferably, one side of each of the two sets of slides is provided with a through groove to facilitate the movement of the rack plate.

[0008] Preferably, the inner walls of both sets of clamping blocks are bonded with protective pads.

[0009] Preferably, a support plate is provided on one side of the fixing seat below the two sets of clamping arms.

[0010] Preferably, the vacuum adsorption mechanism includes a vacuum suction cup, the top of the placement platform has a circular groove, the vacuum suction cup is embedded in the inner side of the circular groove, and its top surface is flush with the placement surface of the placement platform. The interior of the placement platform has a vacuum channel, one end of which is connected to the vacuum suction cup, and the other end extends to the outside of the placement platform and is connected to a vacuum valve connected to an external vacuum generator.

[0011] Preferably, the base has mounting feet at both ends on its bottom, and each of the two sets of mounting feet has two sets of mounting holes.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model uses a drive mechanism to move two sets of clamping arms in opposite directions, allowing the V-shaped clamping blocks mounted on opposite sides of the two sets of clamping arms to gradually approach and clamp the workpiece, achieving initial workpiece positioning. A vacuum adsorption mechanism generates an adsorption force on the bottom of the workpiece, firmly fixing it to the placement table, ensuring the workpiece will not shift during processing. After processing, the vacuum adsorption mechanism is first closed to release the adsorption, and then the drive mechanism can move the two sets of clamping arms in opposite directions to separate, allowing the workpiece to be removed. This structure allows for the rapid clamping and disassembly of different workpieces while ensuring the workpiece does not shift during processing, effectively improving positioning stability and ease of operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a bottom view of the present invention;

[0016] Figure 3 This is a side view and a top view of the present invention;

[0017] Figure 4 This is a side sectional view of the mounting bracket.

[0018] Figure 5 for Figure 4 Enlarged view of part A in the image.

[0019] In the diagram: 1. Base, 2. Placement platform, 3. Vacuum suction cup, 4. Vacuum valve, 5. Fixed seat, 6. Cavity, 7. First movable groove, 8. Second movable groove, 9. Slide rod, 10. Slide seat, 11. Rack plate, 12. Rotating shaft, 13. Circular gear, 14. Through groove, 15. Connecting block, 16. Electric telescopic rod, 17. Clamping arm, 18. Clamping block, 19. Support plate, 20. Mounting foot. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please refer to Figure 1-5 As shown, this utility model provides a machining positioning table, including a base 1, a placement platform 2 on the top of the base 1, a fixed seat 5 installed on one side of the placement platform 2, two sets of clamping arms 17 slidably connected to one side of the fixed seat 5, and V-shaped clamping blocks 18 installed on the opposite side of the two sets of clamping arms 17. A cavity 6 is opened inside the fixed seat 5, and a driving mechanism is provided inside the cavity 6 to facilitate the reverse movement of the two sets of clamping arms 17 and the two sets of clamping blocks 18. A vacuum adsorption mechanism is provided on the top of the placement platform 2 to facilitate the fixation of the workpiece.

[0023] Specifically, first, the workpiece is placed on the placement table 2. Then, the drive mechanism is activated, which drives the two sets of clamping arms 17 to move in opposite directions. This allows the V-shaped clamping blocks 18 installed on opposite sides of the two sets of clamping arms 17 to gradually approach and clamp the workpiece, thus achieving initial positioning of the workpiece. Next, the vacuum adsorption mechanism at the top of the placement table 2 is activated. The vacuum adsorption mechanism generates an adsorption force on the bottom of the workpiece, firmly fixing the workpiece on the placement table 2. This double fixation ensures that the workpiece will not shift during processing. After processing, the vacuum adsorption mechanism is first turned off to release the adsorption. Then, the drive mechanism drives the two sets of clamping arms 17 to separate in opposite directions, allowing the workpiece to be removed. Thus, through the above structure, it is possible to adapt to the rapid clamping and disassembly of different workpieces, and it can ensure that the workpiece does not shift during processing, effectively improving positioning stability and ease of operation.

[0024] The drive mechanism includes an electric telescopic rod 16. Two sets of first movable slots 7 are provided on one side of the cavity 6, and a set of second movable slots 8 are provided on the other side. Two sets of sliding rods 9 are provided inside the cavity 6 and slidably connected to two sets of sliding blocks 10. A rack plate 11 is provided on one side of each set of sliding blocks 10. A rotating shaft 12 is rotatably connected to the center of the inner side of the cavity 6, and its outer ring is fitted with a circular gear 13 that meshes with the two sets of rack plates 11. A connecting block 15 passes through the inner side of the second movable slot 8. One end of the connecting block 15 is connected to one side of a set of sliding blocks 10, and the other end is connected to one end of the electric telescopic rod 16 installed on one side of the fixed base 5. One end of each of the two clamping arms 17 passes through the inner side of the two sets of first movable slots 7 and is connected to one side of the corresponding sliding block 10. By activating the electric telescopic rod 16, the electric telescopic rod 16 extends and retracts, driving one of the sliding blocks 10 to move. The connecting block 15 at one end moves along the inner side of the second movable groove 8. When the connecting block 15 moves, it can drive a set of slide blocks 10 connected to its other end to slide along the slide rod 9. During the sliding process of the slide block 10, it can drive the rack plate 11 on one side to move synchronously. When the rack plate 11 moves, it can drive the spur gear 13 to rotate. When the spur gear 13 rotates, it can drive the other set of rack plates 11 meshing with it to move in the opposite direction, which can then drive the other set of slide blocks 10 to slide in the opposite direction along the slide rod 9. When the two sets of slide blocks 10 slide in the opposite direction, they can respectively drive the two sets of clamping arms 17 connected to one side and passing through the inner side of the first movable groove 7 to move in the opposite direction along the first movable groove 7, ultimately realizing the approach or separation of the two sets of clamping arms 17. Thus, by setting it, the two sets of clamping arms 17 can be quickly approached or separated, and the transmission structure is stable and easy to adjust, which can efficiently adapt to the clamping requirements of workpieces of different sizes.

[0025] Each of the two sets of slides 10 has a through slot 14 on one side to facilitate the movement of the rack plate 11. The through slot 14 on one side of the two sets of slides 10 provides reserved space for the movement of the rack plate 11, avoids motion interference between the rack plate 11 and the slide 10, and ensures that the rack plate 11 can smoothly link with the spur gear 13 when sliding with the slide 10, thus ensuring the transmission stability of the drive mechanism. The inner walls of the two sets of clamping blocks 18 are bonded with protective pads. The protective pads bonded to the inner walls of the two sets of clamping blocks 18 can buffer the clamping force when the V-shaped clamping blocks 18 clamp the workpiece, avoid the clamping blocks 18 directly contacting and damaging the workpiece surface, and at the same time enhance the friction between the clamping blocks 18 and the workpiece, further improving the clamping stability. A support plate 19 is provided on one side of the fixed seat 5 below the two sets of clamping arms 17. The support plate 19 on one side of the fixed seat 5 below the two sets of clamping arms 17 can support the clamping arms 17, ensure the stability of the clamping position of the clamping arms 17 and the V-shaped clamping blocks 18, and thus ensure the workpiece positioning accuracy.

[0026] The vacuum adsorption mechanism includes a vacuum suction cup 3. A circular groove is provided on the top of the placement platform 2. The vacuum suction cup 3 is embedded in the inner side of the circular groove, and its top surface is flush with the placement surface of the placement platform 2. A vacuum channel is provided inside the placement platform 2. One end of the channel is connected to the vacuum suction cup 3, and the other end extends to the outside of the placement platform 2 and is connected to a vacuum valve 4 connected to an external vacuum generator. By activating the external vacuum generator, the vacuum generator can perform a vacuuming operation on the vacuum suction cup 3 through the vacuum valve 4 connected to the outside of the placement platform 2 and the vacuum channel inside the placement platform 2, so that the vacuum suction cup 3 generates an adsorption force. When the workpiece is placed on the placement platform 2 and comes into contact with the vacuum suction cup 3, the vacuum suction cup 3 can firmly adsorb the workpiece onto the placement surface of the placement platform 2. In this way, the workpiece can be further fixed, ensuring that the workpiece is not easily moved during processing. The adsorption operation is simple and can be adapted to various workpiece fixing requirements.

[0027] The base 1 has mounting feet 20 near both ends at the bottom. Each of the two sets of mounting feet 20 has two sets of mounting holes. The two sets of mounting feet 20 and mounting holes at the bottom of the base 1 can quickly and securely install the positioning table on the processing machine table or the ground through bolts and other connecting parts, so as to avoid the base shifting during processing and ensure the installation stability and safety of the overall positioning table.

[0028] Working principle: First, place the workpiece on the placement table 2 and start the electric telescopic rod 16. Its telescopic end can drive the connecting block 15 to move along the second movable groove 8. The connecting block 15 can drive a set of slide blocks 10 to slide along the slide rod 9. The rack plate 11 on one side of the slide block 10 can move with it and drive the spur gear 13 to rotate. The spur gear 13 can drive another set of rack plates 11 and slide blocks 10 to slide in the opposite direction. The two sets of slide blocks 10 can drive the two sets of clamping arms 17 to move in the opposite direction, so that the V-shaped clamping blocks 18 on the two sets of clamping arms 17 can approach and clamp the workpiece to complete the initial positioning. Then, start the external vacuum generator. Through the vacuum valve 4 and the vacuum channel inside the placement table 2, the vacuum suction cup 3 embedded in the circular groove can be vacuumed, so that the vacuum suction cup 3 generates an adsorption force. The vacuum suction cup 3 can firmly adsorb the workpiece on the placement surface of the placement table 2. After processing, turn off the vacuum generator to release the adsorption. Then, the electric telescopic rod 16 can drive the clamping arms 17 to separate, and the workpiece can be removed, thus completing the entire operation process.

[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A machining positioning table, comprising a base (1), characterized in that: The base (1) has a placement platform (2) on its top. A fixed seat (5) is installed on one side of the placement platform (2). Two sets of clamping arms (17) are slidably connected to one side of the fixed seat (5). V-shaped clamping blocks (18) are installed on the opposite side of the two sets of clamping arms (17). A cavity (6) is opened inside the fixed seat (5). A driving mechanism is provided inside the cavity (6) to facilitate the reverse movement of the two sets of clamping arms (17) and the two sets of clamping blocks (18). A vacuum adsorption mechanism is provided on the top of the placement platform (2) to facilitate the fixation of the workpiece. The driving mechanism includes an electric telescopic rod (16). Two sets of first movable slots (7) are provided on one side of the cavity (6), and a set of second movable slots (8) are provided on the other side. Two sets of slide rods (9) are provided inside the cavity (6) and two sets of slide seats (10) are slidably connected. A rack plate (11) is provided on one side of each of the two sets of slide seats (10). A rotating shaft (12) is rotatably connected to the center of the inner side of the cavity (6). A round gear (13) that meshes with the two sets of rack plates (11) is sleeved on its outer ring. A connecting block (15) passes through the inner side of the second movable slot (8). One end of the connecting block (15) is connected to one side of a set of slide seats (10), and the position near the other end is connected to one end of the electric telescopic rod (16) installed on one side of the fixed seat (5). One end of each of the two sets of clamping arms (17) passes through the inner side of the two sets of first movable slots (7) and is connected to one side of the corresponding slide seat (10). The vacuum adsorption mechanism includes a vacuum suction cup (3). A circular groove is provided on the top of the placement platform (2). The vacuum suction cup (3) is embedded in the inner side of the circular groove, and its top surface is flush with the placement surface of the placement platform (2). A vacuum channel is provided inside the placement platform (2). One end of the channel is connected to the vacuum suction cup (3), and the other end extends to the outer side of the placement platform (2) and is connected to a vacuum valve (4) connected to an external vacuum generator.

2. The machining positioning table according to claim 1, characterized in that: Both sets of slides (10) have through slots (14) on one side to facilitate the movement of the rack plate (11).

3. A machining positioning table according to claim 2, characterized in that: The inner walls of both sets of clamps (18) are bonded with protective pads.

4. A machining positioning table according to claim 1, characterized in that: A support plate (19) is provided on one side of the fixed base (5) below the two sets of clamping arms (17).

5. A machining positioning table according to claim 4, characterized in that: The base (1) is provided with mounting feet (20) at both ends of its bottom, and two sets of mounting holes are provided on each of the two sets of mounting feet (20).

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