CN219819474U

CN219819474U - Triaxial linkage clamping mechanism

Info

Publication number: CN219819474U
Application number: CN202321246087.1U
Authority: CN
Inventors: 段现银; 吴天格; 张健; 潘远君
Original assignee: Luzhou Hanfei Aerospace Technology Development Co ltd
Current assignee: Luzhou Hanfei Aerospace Technology Development Co ltd
Priority date: 2023-05-22
Filing date: 2023-05-22
Publication date: 2023-10-13
Anticipated expiration: 2033-05-22

Abstract

The utility model relates to a clamp and provides a triaxial linkage clamping mechanism which comprises an operation table, a plurality of sliding rails arranged on the side edges of the upper end of the operation table, and a clamp arranged on the sliding rails in a sliding manner; the fixture comprises a sliding block which is in sliding connection with the sliding rail, a driving device which is connected with the sliding block, a first rack which is arranged at the upper end of the sliding block in a sliding manner, a cross rod which is fixedly arranged at the upper end of the sliding block, a rotating shaft which is arranged inside the cross rod, a hollow vertical rod which is arranged at the end part of the cross rod, a second rack which is arranged inside the vertical rod in a sliding manner, a pressing plate which is arranged at the upper end of the second rack, a first gear which is arranged on the rotating shaft and is meshed with the first rack, and a second gear which is arranged on the rotating shaft and is meshed with the second rack. The three-axis linkage clamping mechanism can well clamp the side edges and the upper edge of the workpiece, and is simple in structure and free of redundant driving mechanisms.

Description

Triaxial linkage clamping mechanism

Technical Field

The utility model relates to the technical field of clamps, in particular to a three-axis linkage clamping mechanism.

Background

The fixture is used to fix the machining object in the correct position during the machining process to accept the construction or detection. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in the process may be referred to as a fixture.

For machining of workpieces with slightly larger sizes, when the workpieces need to be fixed by using a clamp, corresponding top plates are required to be arranged around the workpieces to prop the workpieces for fixing stability, and then movement of the top plates in multiple directions needs to be regulated, wherein a plurality of driving mechanisms or complex linkage mechanisms are required to be used for carrying out. In addition, in order to keep the workpiece in a horizontal state, the workpiece is pressed by using a pressing plate structure moving in the vertical direction at each position of the side edge of the workpiece, so that the overall structure of the clamp is particularly complex and has high failure rate on the premise that a plurality of structures are required to be arranged in the horizontal direction and the vertical direction, and the clamp is inconvenient to adjust and use.

Disclosure of Invention

The utility model aims to provide a three-axis linkage clamping mechanism which can well complete clamping work on the side edge and the upper edge of a workpiece, and is simple in structure and free from redundant driving mechanisms.

The embodiment of the utility model is realized by the following technical scheme: the triaxial linkage clamping mechanism comprises an operation table, a plurality of sliding rails and a clamp, wherein the sliding rails are arranged on the side edges of the upper end of the operation table; the fixture comprises a sliding block, a driving device, a first rack, a cross rod, a rotating shaft, a hollow vertical rod, a second rack, a pressing plate, a first gear and a second gear, wherein the sliding block is connected with the sliding rail in a sliding mode, the driving device is connected with the sliding block, the first rack is arranged at the upper end of the sliding block in a sliding mode, the cross rod is fixedly arranged at the upper end of the sliding block, the rotating shaft is arranged inside the cross rod in a rotating mode, the hollow vertical rod is arranged at the end portion of the cross rod, the second rack is arranged inside the vertical rod in a sliding mode, the pressing plate is arranged at the upper end of the second rack in a sliding mode, the first gear is arranged on the rotating shaft and meshed with the first rack, and the second gear is arranged on the rotating shaft and meshed with the second rack.

Further, the vertical rods are provided with a pair, and the pair of vertical rods are respectively arranged at two ends of the cross rod; and a pair of second racks are arranged in the cross bars, and pressing plates are arranged at the upper ends of the second racks.

Further, an elastic piece is arranged at the inner bottom of the vertical rod and fixedly connected with the lower end part of the second rack.

Further, the elastic member includes a spring.

Further, a top plate is arranged at one end of the first rack, which is close to the operating platform.

Further, the driving shaft device comprises a telescopic mechanism arranged in the operating platform and a pull rod connected with the telescopic mechanism; the pull rod is hinged with the sliding block.

Further, the telescopic mechanism is one of an electric telescopic cylinder and an air cylinder.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects: according to the triaxial linkage clamping mechanism, a workpiece is placed on an operation table when the triaxial linkage clamping mechanism is used, a driving device is used for driving a sliding block to move along the direction of a sliding rail and close to the workpiece, at the moment, the end part of a first rack is firstly propped against the side wall of the workpiece, the first rack cannot move continuously, at the moment, the sliding block can move continuously, during sliding movement, a first gear starts to rotate under the action of the first rack, a rotating shaft is driven to rotate, a second gear is driven to rotate, the second rack is driven to descend, a pressing plate is driven to descend and then is pressed on the workpiece, the purpose of clamping the workpiece is achieved, and the workpiece can be well centered and clamped by arranging clamps around the operation table. And the operation process is completed once without moving through a plurality of positions.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a tri-axial linkage clamping mechanism according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of a clamp portion according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a rotating shaft portion according to an embodiment of the present utility model.

Icon: 10-operation table, 11-slide rail, 12-work piece, 20-fixture, 21-slider, 22-horizontal pole, 23-montant, 24-pivot, 25-first rack, 26-second rack, 27-clamp plate, 28-first gear, 29-second gear, 210-spring, 211-roof, 212-pull rod.

Detailed Description

Examples

As further described below with reference to the specific embodiments, as shown in fig. 1 to 3, the tri-axial linkage clamping mechanism of the present embodiment includes an operation table 10, a plurality of sliding rails 11 disposed on the upper end side of the operation table 10, and a clamp 20 slidably disposed on the sliding rails 11; the fixture 20 comprises a sliding block 21 which is in sliding connection with the sliding rail 11, a driving device which is connected with the sliding block 21, a first rack 25 which is arranged at the upper end of the sliding block 21 in a sliding manner, a cross rod 22 which is fixedly arranged at the upper end of the sliding block 21, a rotating shaft 24 which is arranged in the cross rod 22 in a rotating manner, a hollow vertical rod 23 which is arranged at the end part of the cross rod 22, a second rack 26 which is arranged in the vertical rod 23 in a sliding manner, a pressing plate 27 which is arranged at the upper end of the second rack 26, a first gear 28 which is arranged on the rotating shaft 24 and is meshed with the first rack 25, and a second gear 29 which is arranged on the rotating shaft 24 and is meshed with the second rack 26. Specifically, when in use, the workpiece 12 is placed on the operation table 10, then the driving device is used for driving the sliding block 21 to move along the direction of the sliding rail 11 and close to the workpiece 12, at this time, the end part of the first rack 25 is firstly propped against the side wall of the workpiece 12, the first rack 25 cannot move continuously, at this time, the sliding block 21 can move continuously, the first gear 28 starts to rotate under the action of the first rack 25 during sliding movement, the rotating shaft 24 is driven, the second gear 29 rotates, the second rack 26 is further lowered, the pressing plate 27 is further driven to be pressed on the workpiece 12 after being lowered, the purpose of clamping the workpiece 12 is achieved, and the workpiece 12 can be centered and clamped well by arranging the clamp 20 around the operation table 10. And the operation process is completed once without moving through a plurality of positions.

The vertical rods 23 in the embodiment are provided with a pair, and the pair of vertical rods 23 are respectively arranged at two ends of the cross rod 22; a second rack 26 is arranged in each pair of cross bars 22, and a pressing plate 27 is arranged at the upper ends of each pair of second racks 26. In particular, the pair of pressure plates 27 can be more uniformly stressed.

An elastic member is arranged at the inner bottom of the vertical rod 23 in the embodiment, and the elastic member is fixedly connected with the lower end part of the second rack 26. The elastic member includes a spring 210. In particular, the spring 210 may jack the second rack 26 when it is desired to release the workpiece 12, so that the platen 27 may be more smoothly moved away from the workpiece 12.

The first rack 25 in this embodiment is provided with a top plate 211 at one end near the console 10. Specifically, the top plate 211 can better push against the workpiece 12, increase the contact area with the workpiece 12, and reduce damage to the workpiece 12.

The driving shaft device in the present embodiment includes a telescopic mechanism provided inside the console 10, and a pull rod 212 connected to the telescopic mechanism; the pull rod 212 is hinged with the slider 21. The telescopic mechanism is one of an electric telescopic cylinder and an air cylinder. Specifically, a conventional driving mechanism may be used to drive the slider 21 to move in the horizontal direction.

In summary, in the three-axis linkage clamping mechanism of the present embodiment, the workpiece 12 is placed on the operation table 10 during use, then the driving device is used to drive the slider 21 to move along the direction of the sliding rail 11 near the workpiece 12, at this time, the end portion of the first rack 25 is firstly propped against the side wall of the workpiece 12, the first rack 25 cannot continue to move, at this time, the slider 21 can continue to move, the first gear 28 starts to rotate under the action of the first rack 25 during sliding movement, and then drives the rotating shaft 24, and the second gear 29 rotates, so that the second rack 26 descends, and then drives the pressing plate 27 to descend and then press against the workpiece 12, so that the purpose of clamping the workpiece 12 is achieved, and the workpiece 12 can be well centered and clamped by arranging the clamp 20 around the operation table 10. And the operation process is completed once without moving through a plurality of positions.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a triaxial linkage fixture which characterized in that: the device comprises an operation table (10), a plurality of sliding rails (11) arranged on the side edges of the upper end of the operation table (10), and a clamp (20) arranged on the sliding rails (11) in a sliding manner;

the fixture (20) comprises a sliding block (21) which is connected with the sliding rail (11) in a sliding manner, a driving device which is connected with the sliding block (21), a first gear (28) which is arranged at the upper end of the sliding block (21) in a sliding manner, a cross rod (22) which is fixedly arranged at the upper end of the sliding block (21), a rotating shaft (24) which is arranged inside the cross rod (22) in a rotating manner, a hollow vertical rod (23) which is arranged at the end part of the cross rod (22), a second gear (26) which is arranged inside the vertical rod (23) in a sliding manner, a pressing plate (27) which is arranged at the upper end of the second gear (26), a first gear (28) which is arranged on the rotating shaft (24) and is meshed with the first gear (25), and a second gear (29) which is arranged on the rotating shaft (24) and is meshed with the second gear (26).

2. The three-axis linkage clamping mechanism of claim 1, wherein: the vertical rods (23) are provided with a pair, and the pair of vertical rods (23) are respectively arranged at two ends of the cross rod (22); a pair of second racks (26) are arranged in the cross bars (22), and pressing plates (27) are arranged at the upper ends of the second racks (26).

3. The three-axis linkage clamping mechanism of claim 1, wherein: an elastic piece is arranged at the inner bottom of the vertical rod (23), and the elastic piece is fixedly connected with the lower end part of the second rack (26).

4. A tri-axial linkage clamping mechanism according to claim 3, wherein: the elastic member includes a spring (210).

5. The three-axis linkage clamping mechanism of claim 1, wherein: a top plate (211) is arranged at one end of the first rack (25) close to the operating platform (10).

6. The three-axis linkage clamping mechanism of claim 1, wherein: the driving device comprises a telescopic mechanism arranged in the operating platform (10) and a pull rod (212) connected with the telescopic mechanism; the pull rod (212) is hinged with the sliding block (21).

7. The three-axis linkage clamping mechanism of claim 6, wherein: the telescopic mechanism is one of an electric telescopic cylinder and an air cylinder.