CN-224223926-U - Clamping mechanism

Abstract

The utility model relates to the field of clamping equipment, and discloses a clamping mechanism. The clamping mechanism comprises a servo motor, a turntable, a bearing plate, a supporting column, three link mechanisms, a first photoelectric switch, a second photoelectric switch and a main control system. The turntable is connected with the servo motor, the bearing plate is parallel to the turntable, a waist-shaped hole is formed in the bearing plate, a sliding rail is arranged on the bearing plate, the supporting columns are arranged on the bearing plate to separate the bearing plate from the turntable by a preset distance, and each connecting rod mechanism clamps a workpiece together. A servo motor is adopted to drive the turntable to rotate, the link mechanism is driven to move in the rotating process of the turntable, and the workpiece is clamped or loosened in the moving process of the link mechanism. The combined action of servo motor control and photoelectric switch detection can ensure that any position of the grapple can be stopped; the clamping range can be enlarged by adopting the connecting rod mechanism, and the single-grabbing range can be 0-100 mm.

Inventors

• Qian Hanyi

Assignees

• 尼泊丁(无锡)精密量仪有限公司

Dates

Publication Date

20260512

Application Date

20250306

Claims (6)

1. 1. A clamping mechanism, comprising: The servo motor is fixed on the mounting bracket; The turntable is connected with the servo motor; The bearing plate is parallel to the turntable, a waist-shaped hole is formed in the bearing plate, and a sliding rail is arranged on the bearing plate, wherein the length direction of the waist-shaped hole is parallel to the track length direction of the sliding rail; The support column is arranged on the bearing plate and used for supporting the rotary table, and the bearing plate and the rotary table are separated by a preset distance; the first photoelectric switch and the second photoelectric switch are arranged on the bearing plate and are arranged along the track direction parallel to the sliding rail; The main control system is electrically connected with the servo motor, the first photoelectric switch and the second photoelectric switch respectively; n link mechanisms, wherein N is a natural number larger than 1, each link mechanism is used for clamping a workpiece together, and any one link mechanism comprises: the first connecting rod is rotatably arranged on the turntable; the second connecting rod is rotationally connected with the first connecting rod, and the length direction of the second connecting rod is parallel to the radial direction of the turntable; The sliding part is rotatably arranged on the second connecting rod, and is parallel to the first connecting rod, and the sliding part is used for sliding back and forth along the track direction of the sliding rail; A grapple arranged on the sliding part and penetrating through the kidney-shaped hole for clamping the workpiece; The main control system is used for controlling the servo motor to stop moving when the first photoelectric switch or the second photoelectric switch detects the sliding component.
2. 2. The clamping mechanism of claim 1, wherein the slide rail comprises a first rail and a second rail disposed on opposite sides of the kidney-shaped aperture; The sliding part comprises a top plate, a first side plate, a second side plate and a connecting plate, wherein the first side plate, the second side plate and the connecting plate are vertically arranged on the top plate; The first track is arranged in the first groove, and the second track is arranged in the second groove.
3. 3. The clamping mechanism of claim 2, wherein the first rail and the second rail are bumps disposed on the carrier plate.
4. 4. The clamping mechanism according to claim 2, wherein the sliding part further comprises a first sliding block arranged in the first groove and a second sliding block arranged in the second groove, and the first sliding block and the second sliding block are U-shaped blocks; The left side and the right side of the inner side of the first sliding block are provided with first positioning protrusions which are in sliding fit with sliding grooves on the first rail; The left side and the right side of the inner side of the second sliding block are provided with second positioning protrusions which are in sliding fit with sliding grooves on the second track.
5. 5. The clamping mechanism according to claim 1, wherein the grapple comprises a fixed section fixed on the sliding part, a vertical section connected with the fixed section, and a horizontal section arranged on one side of the vertical section away from the fixed section, wherein the vertical section and the horizontal section are used for clamping a workpiece.
6. 6. The clamp mechanism of claim 5, wherein the grapple further comprises a filler strip disposed on the vertical section, a side of the filler strip facing the horizontal section being abutted against the horizontal section.

Description

Clamping mechanism Technical Field The utility model relates to the field of clamping equipment, in particular to a clamping mechanism. Background At present, the clamping mechanism is usually driven by an air cylinder, can not stop at any position, and has a small pneumatic clamping range. The conventional pneumatic gripper (triple gripper) generally uses a wedge-shaped structure, and the clamping range of the structure is difficult to be large. Disclosure of utility model The utility model aims to provide a clamping mechanism which has wider clamping range on a workpiece and can stop at any position. In order to solve the above technical problems, an embodiment of the present utility model provides a clamping mechanism, including: The servo motor is fixed on the mounting bracket; The turntable is connected with the servo motor; The bearing plate is parallel to the turntable, a waist-shaped hole is formed in the bearing plate, and a sliding rail is arranged on the bearing plate, wherein the length direction of the waist-shaped hole is parallel to the track length direction of the sliding rail; The support column is arranged on the bearing plate and used for supporting the rotary table, and the bearing plate and the rotary table are separated by a preset distance; the first photoelectric switch and the second photoelectric switch are arranged on the bearing plate and are arranged along the track direction parallel to the sliding rail; The main control system is electrically connected with the servo motor, the first photoelectric switch and the second photoelectric switch respectively; n link mechanisms, wherein N is a natural number larger than 1, each link mechanism is used for clamping a workpiece together, and any one link mechanism comprises: the first connecting rod is rotatably arranged on the turntable; the second connecting rod is rotationally connected with the first connecting rod, and the length direction of the second connecting rod is parallel to the radial direction of the turntable; The sliding part is rotatably arranged on the second connecting rod, and is parallel to the first connecting rod, and the sliding part is used for sliding back and forth along the track direction of the sliding rail; A grapple arranged on the sliding part and penetrating through the kidney-shaped hole for clamping the workpiece; The main control system is used for controlling the servo motor to stop moving when the first photoelectric switch or the second photoelectric switch detects the sliding component. Compared with the prior art, the embodiment of the utility model has the advantages that the servo motor drives the turntable to rotate, the link mechanism is driven to move in the rotating process of the turntable, and the workpiece is clamped or loosened in the moving process of the link mechanism. The clamping mechanism uses servo and link mechanisms, can ensure that any position of the grapple hook can stop under the combined action of servo motor control and photoelectric switch detection, can enlarge the clamping range by adopting the link mechanisms, and can achieve a single clamping range of 0-100mm, and can achieve multi-variety compatibility without manual type changing due to the advantages. In addition, the sliding rail comprises a first rail and a second rail which are arranged on two sides of the kidney-shaped hole, the sliding part comprises a top plate, a first side plate, a second side plate and a connecting plate, the first side plate, the second side plate and the connecting plate are vertically arranged on the top plate, the connecting plate penetrates through the kidney-shaped hole to be connected with the grapple, the first side plate, the top plate and the connecting plate form a first groove, the second side plate, the top plate and the connecting plate form a second groove, the first rail is arranged in the first groove, and the second rail is arranged in the second groove. In addition, the first track and the second track are lugs arranged on the bearing plate. In addition, the sliding part further comprises a first sliding block arranged in the first groove and a second sliding block arranged in the second groove, the first sliding block and the second sliding block are U-shaped blocks, sliding grooves are formed in the left side and the right side of the first track and the left side and the right side of the second track, first positioning protrusions are arranged on the left side and the right side of the inner side of the first sliding block and are in sliding fit with the sliding grooves on the first track, second positioning protrusions are arranged on the left side and the right side of the inner side of the second sliding block and are in sliding fit with the sliding grooves on the second track. In addition, the grapple comprises a fixed section fixed on the sliding part, a vertical section connected with the fixed section and a horizontal section arranged on one side of the ve