A fixture structure for simultaneously clamping two sets of workpieces

Abstract

The utility model discloses a kind of clamp structure for two groups of workpieces are simultaneously clamped, it is related to cylindrical workpiece processing technical field, the clamp structure includes: base;Two mutually corresponding sliding seats, and all with screw rod on base connection;Driving assembly, it is set in the side of base, and with screw rod connection;Among them, the driving assembly with screw rod between being equipped with variable speed gear set, and variable speed gear set has multiple blocking gear sets.The utility model said a kind of clamp structure for two groups of workpieces are simultaneously clamped, by positioning block is installed between two sliding seats, therefore every sliding seat can form with positioning block between it '' clamping structure '', so, effectively solved the technical problem that only single clamping can be carried out when using the clamp for existing cylinder processing, to realize the purpose of simultaneously clamping two workpieces, thereby improve the machining efficiency of machine tool, while overall structure is simple, with good implementability.

Claims

1. A clamping structure for simultaneously clamping two sets of workpieces, characterized in that, The fixture structure includes: Base (1); Two corresponding sliding seats (5) are connected to the lead screw (61) on the base (1). The lead screw (61) has two sets of threads with opposite directions. The drive assembly (6) is located on one side of the base (1) and connected to the lead screw (61), which can drive the lead screw (61) to rotate; Among them, a speed-changing gear set is provided between the drive component (6) and the lead screw (61), and the speed-changing gear set has multiple gear sets. When the drive component (6) rotates, the output torque of the drive component (6) to the lead screw (61) can be adjusted by the speed-changing gear set.

2. The fixture structure for simultaneously clamping two groups of workpieces according to claim 1, wherein: The base (1) has a positioning block (3) at its center, which is located between two sliding seats (5) and is connected to the middle of the lead screw (61) through a bearing. When the lead screw (61) rotates, it can drive the two sets of sliding seats (5) to open and close in the direction of the positioning block (3).

3. The fixture structure for simultaneously clamping two sets of workpieces according to claim 1, wherein: The variable speed gear set includes a driven gear (62) disposed on the end of the lead screw (61) and a drive gear (66) in the drive assembly (6); Among them, there are multiple driven gears (62) and driving gears (66), which mesh with each other in a one-to-one correspondence. A set of driven gears (62) and driving gears (66) meshing with each other constitutes a gear set. The outer diameters of the multiple driven gears (62) are all different, and they are all fixedly connected to the lead screw (61); The multiple drive gears (66) are movably connected to each other, and each of them has a hole at its center, with the holes communicating with each other.

4. The fixture structure for simultaneously clamping two sets of workpieces according to claim 3, wherein: The drive assembly (6) includes a rotating head (64) disposed on the outside of the base (1), and the rotating head (64) is connected to the drive gear (66). The rotating head (64) is connected to the drive gear (66) through its internal telescopic head (82). The telescopic head (82) is located in the holes of each drive gear (66), and when the rotating head (64) rotates, the telescopic head (82) can drive the corresponding gear set to rotate, and transmit torque to the lead screw (61).

5. The fixture structure for simultaneously clamping two sets of workpieces according to claim 4, wherein: The rotating head (64) is provided with an adjusting bolt B (83) at its center, and the adjusting bolt B (83) is inserted into the telescopic head (82), and the two are connected by threads. The telescopic head (82) has two sets of corresponding linkage protrusions (84) on its exterior. One set of protrusions (84) corresponds to the sliding groove inside the rotating head (64), and the other set of protrusions (84) corresponds to the hole on the drive gear (66). As the adjusting bolt B (83) rotates, the telescopic head (82) moves along the slide and inserts into the holes on different drive gears (66).

6. A fixture structure for simultaneously clamping two sets of workpieces as recited in claim 5 wherein: The adjusting bolt B (83) has a retaining ring (85) sleeved on its screw, and the rotating head (64) is clamped by the retaining ring (85) and the nut on the adjusting bolt B (83).

7. A fixture structure for simultaneously clamping two sets of workpieces as set forth in any one of claims 1 to 6, characterized in that: The sliding seat (5) includes a sliding block (51) and a guide groove opened in the sliding block (51), and a retaining plate (53) is slidably installed in the guide groove, and the retaining plate (53) can slide up and down in the guide groove; The bottom of the card plate (53) and the position corresponding to the lead screw (61) are provided with a mating thread, and when the card plate (53) and the lead screw (61) are in contact, the mating thread on the card plate (53) corresponds to the thread on the lead screw (61); The sliding block (51) does not contact the lead screw (61).

8. A fixture structure for simultaneously clamping two sets of workpieces as recited in claim 7 wherein: The sliding block (51) is movably connected to the adjusting bolt A (54), and the adjusting bolt A (54) is connected to the clamping plate (53) by a thread. When the adjusting bolt A (54) rotates, it can drive the clamping plate (53) to move closer to or away from the direction of the lead screw (61).

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