CN223098674U - Rear beam four-axis machining clamp - Google Patents

Abstract

The utility model provides a four-axis machining fixture with a simple structure, convenient and efficient loading and unloading, and stable clamping. The utility model includes a fixture body, a workpiece mounting plate is provided on the fixture body, a workpiece mounting position is provided on the workpiece mounting plate, clamping cylinders are installed on both sides of the workpiece mounting position through connecting plates, a rotating shaft is provided at the output end of the clamping cylinder, a pressing plate is fixedly installed at the end of the rotating shaft, a pressing part and a limiting part are provided on the pressing plate, the pressing part presses the machining workpiece downward, and the limiting part limits the machining workpiece horizontally. The utility model relates to the technical field of four-axis machining fixtures.

Description

Rear beam four-axis machining clamp

Technical Field

The utility model relates to the technical field of four-axis machining clamps, in particular to a rear beam four-axis machining clamp.

Background

With the development of the machining manufacturing industry, the conventional triaxial machining clamp cannot meet the requirement of workpiece machining, and the conventional machining clamp is complex in mounting steps and affects precision. The four-axis machining clamp is simple to install, multiple disassembly and clamping are not needed when multi-direction machining is carried out, and the working efficiency and the machining precision are improved.

The utility model of China with the publication number of CN114932439A discloses a four-axis machining clamp, in the scheme, a workpiece to be machined is clamped by a cylinder matched with the clamp, and a mounting seat is driven to overturn by a rotating shaft of a motor, so that the workpiece can be machined in multiple directions under the condition of not disassembling and re-clamping. According to the scheme, the problem that workpieces are troublesome in multidirectional machining and clamping can be solved, but the clamping mechanism is complex and easy to damage, so that the clamping is unstable, and the machining progress is affected.

It is therefore necessary to develop a four-axis machining fixture that is convenient, efficient and stable to clamp.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model provides the four-axis processing clamp which is simple in structure, convenient and efficient to assemble and disassemble and stable in clamping.

In order to achieve the above purpose, the utility model provides a rear beam four-axis machining clamp, which comprises a clamp body, wherein a workpiece mounting plate is arranged on the clamp body, workpiece mounting positions are arranged on the workpiece mounting plate, clamping cylinders are arranged on two sides of the workpiece mounting positions through connecting plates, a rotating shaft is arranged at the output end of each clamping cylinder, a pressing plate is fixedly arranged at the tail end of each rotating shaft, a pressing part and a limiting part are arranged on each pressing plate, the pressing parts downwards press a machined workpiece, and the limiting parts horizontally limit the machined workpiece.

Based on the above, the clamping cylinder is arranged at two sides of the workpiece mounting plate instead of right above the workpiece mounting plate, so that the mounting space of the clamp structure is optimized, and meanwhile, the output end of the clamping cylinder is a rotating shaft and is fixedly provided with a pressing plate, so that the workpiece is more convenient to assemble and disassemble, and the assembling and disassembling efficiency is improved.

Further, the fixture body comprises a bottom plate and supporting seats, the supporting seats are respectively arranged at two ends of the upper surface of the bottom plate, a driving shaft and a driven shaft are respectively arranged on the supporting seats, and the workpiece mounting plate is arranged between the driving shaft and the driven shaft.

Based on the above, the workpiece mounting plate is arranged between the driving shaft and the driven shaft, so that the clamp workpiece can be processed by four-axis rotating shafts, clamping steps are reduced, and production efficiency is improved.

Further, a driving device is arranged on the driving shaft and drives the driving shaft to rotate, so that the driven shaft and the workpiece mounting plate are driven to rotate together, and four-axis machining of a machined workpiece is achieved.

Based on the above, the driving device is used for driving the rotation of the rotating shaft, so that four-axis machining of the machined workpiece is realized.

Further, a plurality of knife avoiding grooves are formed in the workpiece mounting plate and are arranged right below the position to be processed of the processed workpiece.

Based on the above, the tool avoiding groove is used for avoiding touching the workpiece mounting plate when the machining tool is machined, so that the damage of the tool is avoided and the safety in the machining process is improved.

Further, set up first supporting shoe, second supporting shoe and horizontal stopper on the work piece mounting panel, be provided with the lug on one side of first supporting shoe and form an L shape spacing groove, be provided with the screw hole on the L shape spacing groove, the screw hole is spacing to the X axle of processing work piece with the square cooperation.

Based on the above, when the clamping operation is performed on the machined workpiece, the machined workpiece is supported and limited by the first support block and the second support block. The screw hole on the L-shaped limiting groove can be matched with the mounting square to limit the X axis of the machined workpiece, and the horizontal limiting block is used for limiting the horizontal direction of the machined workpiece.

Further, a plurality of threaded mounting holes are formed in the workpiece mounting plate, the connecting plate is connected with the workpiece mounting plate through the threaded mounting holes, and the clamping cylinders are divided into two groups and are fixedly mounted on the connecting plate.

Based on the above, the clamping cylinders are installed in pairs through the connecting plates, so that the clamping of the machined workpiece is more stable.

In order to more clearly illustrate the above-mentioned features of the present utility model and its intended objects, the present utility model will be further described with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a perspective view b of the present utility model;

FIG. 3 is a front view of the present utility model;

FIG. 4 is a bottom view of the workpiece mounting plate;

FIG. 5 is a schematic view of the structure of the clamping cylinder and the connecting plate;

FIG. 6 is a schematic view of the structure of the first support block;

FIG. 7 is a schematic view of the structure of a work piece.

The reference numerals comprise a fixture body 1, a workpiece mounting plate 2, a connecting plate 3, a clamping cylinder 4, a rotary shaft 5, a pressing plate 6, a pressing part 7, a limiting part 8, a workpiece processing part 9, a base plate 10, a supporting seat 11, a driving shaft 12, a driven shaft 13, a driving device 14, a cutter avoiding groove 15, a first supporting block 16, a second supporting block 17, a horizontal limiting block 18, a 19L-shaped limiting groove 19, a threaded hole 20, a square block 21 and a threaded mounting hole 22.

Detailed Description

As shown in fig. 1 to 7, a rear beam four-axis machining fixture comprises a fixture body 1, wherein the fixture body 1 comprises a bottom plate 10 and supporting seats 11, the supporting seats 11 are respectively installed at two ends of the upper surface of the bottom plate 10, a driving shaft 12 and a driven shaft 13 are respectively arranged on the supporting seats 11, and a workpiece mounting plate 2 is arranged between the driving shaft 12 and the driven shaft 13. The workpiece mounting plate 2 is provided with a plurality of knife avoiding grooves 15 and thread mounting holes 22, the knife avoiding grooves 15 are arranged right below a processing position to be processed of a processed workpiece, clamping cylinders 4 are arranged on two sides of the workpiece mounting plate 2, the lower ends of the clamping cylinders 4 are fixedly mounted with the lower ends of the workpiece mounting plate 2 through connecting plates 3, the clamping cylinders 4 are fixedly mounted on the workpiece mounting plate 2 through the two-by-two matching of the connecting plates 3, counter sunk holes corresponding to the thread mounting holes 22 on the workpiece mounting plate 2 are formed in the connecting plates 3, and screws with the size of the matching holes penetrate through the connecting plates 3 and are fixedly mounted on the workpiece mounting plate 2. The output of the clamping cylinder 4 is a rotary shaft 5, a pressing plate 6 is fixedly arranged at the tail end of the rotary shaft 5, a pressing part 7 and a limiting part 8 are arranged on the pressing plate 6, the pressing part 7 presses down a machined workpiece, and the limiting part 8 horizontally limits the machined workpiece 9. When the machined workpiece 9 is disassembled, the clamping cylinder 4 pushes the pressing plate 6 to move upwards to loosen the machined workpiece 9, then the rotating shaft 5 rotates to move the pressing plate 6 away from the position right above the machined workpiece 9, and then the machined workpiece is removed.

The workpiece mounting plate 2 is provided with a first supporting block 16, a second supporting block 17 and a horizontal limiting block, one side of the first supporting block 16 is provided with a bump to form an L-shaped limiting groove 19, the L-shaped limiting groove 19 is provided with a threaded hole 20, and the threaded hole 20 is matched with a square 21 to limit the X axis of a machined workpiece 9. When the clamping operation is performed on the machined workpiece 9, the machined workpiece 9 is supported and limited by the first support block 16 and the second support block 17. The threaded hole 20 on the L-shaped limiting groove 19 can be matched with the mounting square 21 to limit the X axis of the machined workpiece 9, and the horizontal limiting block is used for limiting the horizontal direction of the machined workpiece 9. The first support block 16, the second support block 17 and the horizontal limiting block are fixedly installed with the threaded installation holes 22 of the workpiece installation plate 2 through screws.

The concrete implementation mode of the embodiment is that the corresponding workpiece mounting plate 2 is selected according to the required processed workpiece 9, the workpiece mounting plate 2 is mounted on the driving shaft 12 and the driven shaft 13, and then the clamping cylinder 4 and the workpiece mounting plate 2 are fixedly mounted by utilizing the connecting plate 3. And then the first support block 16 and the second support block 17 are fixedly arranged on the workpiece mounting plate 2 through screws, after the fixed mounting is finished, the workpiece 9 to be processed is placed on the workpiece mounting plate 2, the first support block 16 and the second support block 17 are utilized for supporting and limiting, the placing position of the workpiece 9 to be processed is adjusted, and the horizontal limiting plate is utilized for limiting in the horizontal direction. The rotary shaft 5 of the clamping cylinder 4 is then rotated so that the pressing plate 6 is placed directly above the workpiece 9 to be processed, and then is contracted downward to press the workpiece 9 to be processed. After the clamping work is finished, the workpiece 9 to be machined is machined, and in the machining process, the workpiece mounting plate 2 is provided with a corresponding tool avoiding groove 15, so that a machining tool can be prevented from colliding with the workpiece mounting plate 2. The workpiece 9 is machined in multiple directions, and when a plane is machined, the workpiece mounting plate 2 is rotated to the next machining plane by the driving device 14, and then the workpiece 9 is machined continuously. After the machining is finished, the workpiece mounting plate 2 is turned back to an initial state, the clamping cylinder 4 loosens the machined workpiece 9, the pressing plate 6 is rotated away from the position right above the machined workpiece 9, then the limiting structure is loosened, the machined workpiece 9 is taken down, and the machining is finished.

The above description is only of the best mode for carrying out the utility model, and is not intended to limit the utility model, but it is intended that modifications and substitutions made by those skilled in the art without departing from the spirit and scope of the utility model.

Claims (6)

1. The utility model provides a back beam four-axis adds clamping apparatus, includes clamp body (1), a serial communication port, be provided with work piece mounting panel (2) on clamp body (1), be provided with work piece installation position (23) on work piece mounting panel (2), clamping cylinder (4) are installed through connecting plate (3) in the both sides of work piece installation position (23), the output of clamping cylinder (4) is provided with rotation axis (5), the terminal fixed mounting of rotation axis (5) has clamp plate (6), be provided with clamp part (7) and spacing portion (8) on clamp plate (6), clamp part (7) compress tightly downwards processing work piece (9), spacing portion (8) carry out the level to processing work piece (9).

2. The rear beam four-axis machining clamp according to claim 1, wherein the clamp body (1) comprises a bottom plate (10) and supporting seats (11), the supporting seats (11) are respectively arranged at two ends of the upper surface of the bottom plate (10), a driving shaft (12) and a driven shaft (13) are respectively arranged on the supporting seats (11), and the workpiece mounting plate (2) is arranged between the driving shaft (12) and the driven shaft (13).

3. The rear beam four-axis machining clamp according to claim 1, wherein a driving device (14) is arranged on a driving shaft (12), and the driving device (14) drives the driving shaft (12) to rotate, so that a driven shaft (13) and a workpiece mounting plate (2) are driven to rotate together, and four-axis machining of a machined workpiece (9) is achieved.

4. The rear beam four-axis machining fixture according to claim 1, wherein the workpiece mounting plate (2) comprises a plurality of knife avoiding grooves (15), and the knife avoiding grooves (15) are arranged right below the position to be machined of the machined workpiece (9).

5. The rear beam four-axis machining clamp according to claim 1, wherein a first supporting block (16), a second supporting block (17) and a horizontal limiting block are arranged on the workpiece mounting plate (2), one side of the first supporting block (16) is provided with a bump to form an L-shaped limiting groove (19), the L-shaped limiting groove is provided with a threaded hole (20), and the threaded hole (20) is matched with a square block (21) to limit the horizontal direction of a machined workpiece (9).

6. The rear beam four-axis machining clamp according to claim 1, wherein a plurality of threaded mounting holes (22) are formed in the workpiece mounting plate (2), the connecting plate (3) is connected with the workpiece mounting plate (2) through the threaded mounting holes (22), and the clamping cylinders (4) are divided into two groups and are fixedly mounted on the connecting plate (3).