CN218503946U - Vertical machining center is with tight multiaxis anchor clamps of cover clamp that expands - Google Patents

Abstract

The utility model belongs to the technical field of fixing device, a vertical machining center is with tight multiaxis anchor clamps of cover clamp that expands is related to, include the bedplate with set up side by side in a plurality of clamping units on the bedplate, every the clamping unit has two clamping positions, every the clamping position all includes the benchmark ring that is used for the axial positioning product, two clamping position sharing a both arms corner hydro-cylinder and a tight mechanism that expands, it includes coaxial locating to expand tight mechanism expand the cover, be located of the below of benchmark ring the vertical driving cylinder of the below of both arms corner hydro-cylinder with by vertical driving cylinder driven connecting plate, two are connected respectively through two pull rods at the both ends of connecting plate expand the cover, expand the cover be equipped with outward connect in conical guide block on the bedplate the pull rod stimulates downwards during the cover that expands, the conical guide block passes through expand the cover transmission to the tight power of expanding of product. The clamp can clamp a plurality of products at one time, and has compact structure and large clamping force.

Description

Vertical machining center is with tight multiaxis anchor clamps of cover clamp that expands

Technical Field

The utility model relates to a fixing device technical field, in particular to vertical machining center is with tight multiaxis anchor clamps of cover clamp that expands.

Background

In automated machining, a fixture is the basis for workpiece fixation. The machining center needs the jig to determine the reference for machining the workpiece, so there should be good close contact between the workpiece and the jig. Many workpieces have a rotator structure, the final position of the workpiece is often determined by combining center positioning, axial positioning and angle positioning, and the stability of workpiece clamping needs to be ensured, otherwise, the workpiece is easy to move during machining, and the machining quality is affected.

Fig. 1 is a Y-shaped product 1, which comprises a column part 11 with a tooth-shaped structure, a left ear part 12, a right ear part 13, a neck part 14 and a recessed part 15, wherein the left ear part 12 and the right ear part 13 are of a symmetrical structure, the recessed part 15 is positioned at the connecting position between the left ear part 12 and the right ear part 13, and the recessed part 15, the neck part 14 and the column part 11 are sequentially connected.

It is therefore necessary to develop a jig for positioning such products.

Disclosure of Invention

An object of the utility model is to provide a vertical machining center is with tight multiaxis anchor clamps of cover clamp that expands, can a plurality of products of disposable clamping, anchor clamps compact structure, clamping power is big.

The utility model discloses a following technical scheme realizes above-mentioned purpose: the utility model provides a vertical machining center is with tight multiaxis anchor clamps of cover that expands, include the bedplate with set up side by side in a plurality of clamping units on the bedplate, every the clamping unit has two clamping positions, every the clamping position all includes the benchmark ring that is used for the axial positioning product, two a both arms corner hydro-cylinder and a tight mechanism that expands of clamping position sharing, the tight mechanism that expands includes coaxial locating expand the cover of the below of benchmark ring, be located vertical drive cylinder of the below of both arms corner hydro-cylinder and by vertical drive cylinder driven connecting plate, two are connected respectively through two pull rods at the both ends of connecting plate expand the cover, expand the cover be equipped with outward connect in toper guide block on the bedplate the pull rod stimulates downwards during the cover that expands, the toper guide block passes through the cover that expands transmits the tight power of expanding to the product.

Specifically, the middle part of the connecting plate is hinged to the tail end of a driving shaft of the vertical driving cylinder, and two sides of the connecting plate are respectively hinged to the lower ends of the two pull rods.

Specifically, the clamping position further comprises a lever oil cylinder located on one side, away from the double-arm corner oil cylinder, of the reference ring and an angle limiting assembly located in front of the reference ring.

Furthermore, the angle limiting assembly comprises a shell, a pair of profiling clamping blocks, a pair of inclination guide blocks and an upward pushing cylinder, the profiling clamping blocks are connected with the inclination guide blocks one by one, the upward pushing cylinder drives a driving block used for being matched with the two inclination guide blocks, the shell is used for guiding the two inclination guide blocks to move horizontally and guiding the driving block to move up and down, and a cylinder body of the upward pushing cylinder is connected to the seat plate.

Furthermore, two sides of the driving block are respectively provided with a spring, and the springs are used for enabling the driving block to move towards the lower part far away from the shell.

Specifically, the double-arm corner oil cylinder comprises a rotary pressing block which can rotate 90 degrees around a vertical shaft and clamp products on two sides.

Specifically, the seat plate is connected above a base plate in a rotating mode around a horizontal shaft, and an overturning driving piece for driving the seat plate to rotate around the horizontal shaft is arranged on the base plate.

Adopt above-mentioned technical scheme beneficial effect to be:

this anchor clamps rely on the reference ring to carry out central point and fix a position, rely on both arms corner hydro-cylinder to carry out the high clamp tightly, lean on the cover that expands to press from both sides the product tight, can once only a plurality of products of clamping, anchor clamps compact structure, clamping power is big.

Drawings

FIG. 1 is a perspective view of a product;

FIG. 2 is a front view of a multi-axis clamp clamped by an expansion sleeve in a vertical machining center according to an embodiment;

FIG. 3 is a perspective view of the clamping unit when the product is not clamped;

FIG. 4 is a perspective view of the clamping unit when clamping a product;

FIG. 5 is a cross-sectional view through two clamping positions at the axis;

FIG. 6 is a cross-sectional view of the angle limiting assembly.

The figures in the drawings represent:

1-product, 11-pillar, 12-left ear, 13-right ear, 14-neck, 15-valley;

2-seat plate, 21-positioning cylinder;

3-clamping unit, 31-reference ring, 32-double-arm corner oil cylinder, 321-rotating press block, 33-lever oil cylinder, 331-swinging press block, 34-angle limiting component, 341-shell, 342-profiling clamp block, 343-inclination guide block, 344-pushing-up cylinder, 345-driving block, 346-spring, 35-expansion mechanism, 351-expansion sleeve, 352-vertical driving cylinder, 353-connecting plate, 354-pull rod and 355-conical guide block;

4-a substrate;

5-overturning the driving piece.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

Example (b):

as shown in fig. 1 to 4, the utility model discloses a vertical machining center is with tight multiaxis anchor clamps of cover that expands, include bedplate 2 and set up two clamping unit 3 on bedplate 2 side by side, every clamping unit 3 has two clamping positions, every clamping position all includes the reference ring 31 that is used for axial positioning product 1, a both arms corner hydro-cylinder 32 and an expansion mechanism 35 of two clamping positions sharing, expansion mechanism 35 includes the cover 351 that expands of coaxial locating reference ring 31's below, be located the vertical drive cylinder 352 of both arms corner hydro-cylinder 32's below and by the connecting plate 353 of vertical drive cylinder 352 driven, two expansion covers 351 are connected respectively through two pull rods 354 at the both ends of connecting plate 353, the cover 351 that expands is equipped with outward and connects the toper guide block 355 on bedplate 2, when pull rod 354 stimulates the cover 351 downwards, toper guide block 355 transmits the tension to product 1 through the cover 351. The bell corner cylinder 32 and the expansion mechanism 35 are located between the two clamping positions. The former functions to avoid the insertion reference ring 31 of the product 1 and to sandwich the left and right ears 12 and 13 of the product 1 from above. The latter has the effect of simultaneously driving the two expansion sleeves 351 by means of the vertical drive cylinder 352 to clamp the product located inside the reference ring 31. The bell crank cylinder 32 includes a rotating press block 321 which rotates 90 about a vertical axis and clamps the product on both sides. The clamp can be provided with more than two sets of clamping units 3. Before clamping starts, the rotating pressing block 321 is in a rising state, and the length direction of the rotating pressing block is parallel to the mirror surface between the two clamping positions; then the column 11 of the product 1 is initially centred by inserting the reference ring 31, two for each gripping unit 3, and then the rotary press 321 is turned through 90 ° to press down over the left 12 and right 13 ears; finally, the vertical driving cylinder 352 drives the connecting plate to move downwards, the expansion sleeve 351 is pulled downwards through the pull rod 354, and because the tapered guide block 355 is provided with a tapered hole in the middle, radial expansion force can be generated when the expansion sleeve 351 moves downwards, so that the expansion sleeve 351 can wrap the neck 14 of the product 1, and the product 1 cannot move randomly. The clamp can clamp a plurality of products at one time, and has compact structure and large clamping force.

As shown in fig. 3 to 5, the connecting plate 353 is hinged at its middle portion to the distal end of the driving shaft of the vertical driving cylinder 352, and both sides of the connecting plate 353 are respectively hinged to the lower ends of the two tie rods 354. The angle of the connecting plate 353 can automatically adapt to the stroke of the expansion sleeve 351, so that the expansion force at the two clamping positions is balanced, and the stability of the two positions is ensured.

As shown in fig. 3 and 4, the clamping station further includes a lever cylinder 33 located on the side of the reference ring 31 remote from the bell crank cylinder 32 and an angle limiting assembly 34 located in front of the reference ring 31. The lever cylinder 33 has a swinging block 331 which opens before the product 1 is inserted into the reference ring 31 and presses above the recess 15 after the product 1 is in place. The angle limiting assembly 34 is used for limiting and clamping the angle of the left ear 12. Therefore, more fixing points of the product 1 on the clamping position can be provided, and the stability of the product in processing can be ensured.

As shown in fig. 6, the angle limiting assembly 34 includes an outer housing 341, a pair of contour clamping blocks 342, a pair of pitch guiding blocks 343, and an up-pushing cylinder 344, wherein the contour clamping blocks 342 are connected to the pitch guiding blocks 343 one by one, the up-pushing cylinder 344 drives a driving block 345 for engaging with the two pitch guiding blocks 343, the outer housing 341 is used to guide the two pitch guiding blocks 343 to move horizontally and guide the driving block 345 to move up and down, and the cylinder body of the up-pushing cylinder 344 is connected to the seat plate 2. The two slope guide blocks 343 only have the freedom to approach and separate from each other, the driving block 345 only has the freedom to ascend and descend, and the driving block 345 can convert the upward pushing action of the upward pushing cylinder 344 into the separating action of the slope guide blocks 343 and separate the copying clamp blocks 342 from each other to release the left ear 12; and when the drive shaft of the push-up cylinder 344 is retracted, the copying clamp block 342 clamps the left ear 12.

As shown in fig. 6, a spring 346 is disposed on each side of the driving block 345, and the spring 346 is used to move the driving block 345 away from the lower side of the housing 341. Spring 346 tends to move drive block 345 downward as contoured clamp blocks 342 approach each other, thus maintaining clamping force on contoured clamp blocks 342 while push-up cylinder 344 is not in operation.

As shown in FIG. 2, the seat plate 2 is rotatably connected to a base plate 4 above the base plate 4 about a horizontal axis, and the base plate 4 is provided with a turnover driving member 5 for driving the seat plate 2 to rotate about the horizontal axis. The turnover driving member 5 can stop the seat plate 2 at a predetermined angle, which is suitable for the case that the processing posture of the product 1 is not in the vertical state.

What has been described above is merely some embodiments of the present invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (7)

1. The utility model provides a vertical machining center is with tight multiaxis anchor clamps of cover clamp that expands, includes the bedplate with set up side by side in a plurality of clamping units on the bedplate, every the clamping unit has two clamping positions, every the clamping position all includes the benchmark ring that is used for the axial positioning product, two clamping position a both arms corner hydro-cylinder of sharing and an expansion mechanism, its characterized in that: the expansion mechanism comprises an expansion sleeve coaxially arranged below the reference ring, a vertical driving cylinder positioned below the double-arm corner oil cylinder and a connecting plate driven by the vertical driving cylinder, two ends of the connecting plate are respectively connected with the expansion sleeve through two pull rods, a conical guide block connected to the seat plate is arranged outside the expansion sleeve, and when the pull rods pull the expansion sleeve downwards, the conical guide block transmits expansion force to a product through the expansion sleeve.

2. The multi-axis clamp clamped by the expansion sleeve for the vertical machining center according to claim 1, wherein: the middle part of the connecting plate is hinged to the tail end of a driving shaft of the vertical driving cylinder, and two sides of the connecting plate are respectively hinged to the lower ends of the two pull rods.

3. The multi-axis clamp clamped by the expansion sleeve for the vertical machining center according to claim 1, wherein: the clamping position further comprises a lever oil cylinder located on one side, away from the double-arm corner oil cylinder, of the reference ring and an angle limiting assembly located in front of the reference ring.

4. The multi-axis clamp clamped by the expansion sleeve for the vertical machining center according to claim 3, wherein: the angle limiting assembly comprises a shell, a pair of profiling clamping blocks, a pair of inclination guide blocks and an upward pushing cylinder, the profiling clamping blocks are connected with the inclination guide blocks one by one, the upward pushing cylinder drives a driving block used for being matched with the two inclination guide blocks, the shell is used for guiding the two inclination guide blocks to move horizontally and guiding the driving block to move up and down, and a cylinder body of the upward pushing cylinder is connected to the seat plate.

5. The multi-axis clamp clamped by the expansion sleeve for the vertical machining center according to claim 4, wherein: two sides of the driving block are respectively provided with a spring, and the springs are used for enabling the driving block to move towards the lower part far away from the shell.

6. The multi-axis clamp clamped by the expansion sleeve for the vertical machining center according to claim 1, wherein: the double-arm corner oil cylinder comprises a rotary pressing block which can rotate 90 degrees around a vertical shaft and clamp products on two sides.

7. The multi-axis clamp clamped by the expansion sleeve for the vertical machining center according to claim 1, wherein: the base plate is connected above a base plate in a rotating mode around a horizontal shaft, and an overturning driving piece for driving the base plate to rotate around the horizontal shaft is arranged on the base plate.

Images