Flexible positioning and clamping unit

Abstract

The utility model discloses a flexible positioning and clamping unit, and relates to the technical field of flexible positioning and clamping. Comprising a bottom plate, a height adjusting structure, a moving plate and a clamping structure, the height adjusting structure is arranged at the upper end of the bottom plate, the moving plate is arranged at the upper end of the height adjusting structure, and the clamping structure is arranged at the upper end of the moving plate; a first bidirectional threaded rod rotates to enable two sets of first sliding blocks on the surface of the first bidirectional threaded rod to get close to each other, the two sets of first sliding blocks get close to each other to drive two sets of first clamping plates to get close to each other, and therefore a workpiece is clamped and fixed. And the two-way threaded rod II rotates to enable two groups of sliding blocks II on the surface of the two-way threaded rod II to be close to each other, and the two groups of sliding blocks II are close to each other to drive two groups of clamping plates II to be close to each other so as to clamp and fix the workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible positioning and clamping, in particular to a flexible positioning and clamping unit. Background Art

[0002] When the milling machine is working, the workpiece is mounted on a workbench or an accessory such as a dividing head, and the rotation of the milling cutter is the main motion, supplemented by the feed motion of the workbench or the milling head, so that the workpiece can obtain the desired processing surface. Due to the multi-blade intermittent cutting, the productivity of the milling machine is relatively high. In addition, the popularity of CNC milling machines has greatly shortened the manufacturing cycle of products and reduced the manufacturing cost. When the milling machine is working, it is generally necessary to be equipped with corresponding fixtures to clamp and fix the workpiece, but the structure of the existing fixtures is generally simpler. In addition, some complex workpieces require special fixtures for processing, and these special fixtures are not universal. After using this batch of products, they can no longer be used, resulting in waste of fixtures. Therefore, those skilled in the art provide a flexible positioning clamping unit to solve the problems raised in the above background technology. Utility Model Content

[0003] The purpose of the utility model is to provide a flexible positioning clamping unit to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A flexible positioning clamping unit comprises a bottom plate, a height adjustment structure, a movable plate and a clamping structure, wherein the upper end of the bottom plate is provided with a height adjustment structure, the upper end of the height adjustment structure is provided with a movable plate, the upper end of the movable plate is provided with a clamping structure, the clamping structure comprises: a support plate, a slide groove 1, a card groove 1, a slide groove 2, a card groove 2, a slider 1, a card block 1, a clamping plate 1, a slider 2, a card block 2, a clamping plate 2, a protective layer, a top plate, a servo motor 1, a bidirectional threaded rod 1, a servo motor 2 and a bidirectional threaded rod 2, a support plate is fixedly installed on the rear end of the upper surface of the movable plate, and a left end of the front side surface of the support plate is provided with a Slide groove one, a slide groove two is provided on the right end of the front surface of the support plate, the positions of the slide groove one and the slide groove two are relatively symmetrical, the slide groove one and the slide groove two both penetrate the upper and lower surfaces of the support plate, the left and right surfaces inside the slide groove one are provided with a card slot one, the left and right surfaces inside the slide groove two are provided with a card slot two, the upper and lower ends of the slide groove one are movably installed with sliders one, the number of sliders one is two groups, the left and right surfaces of the two groups of sliders one are fixedly installed with card blocks one, the card block one is movably connected to the inside of the card slot one, the front surfaces of the two groups of sliders one are fixedly installed with clamping plates one, the number of clamping plates one is two groups.

[0006] Preferably: sliders 2 are movably installed at both upper and lower ends inside the second slide slot, there are two groups of sliders 2, and clamping blocks 2 are fixedly installed on the left and right side surfaces of the two groups of sliders 2, and the clamping blocks 2 are movably clamped inside the second clamping slot.

[0007] Preferably: the front side surfaces of the two groups of sliders 2 are fixedly mounted with clamping plates 2, the number of clamping plates 2 is two groups, and protective layers are fixedly mounted on the side surfaces corresponding to each other of the two groups of clamping plates 1 and the side surfaces corresponding to each other of the two groups of clamping plates 2.

[0008] Preferably: a top plate is fixedly mounted on the upper surface of the support plate, a servo motor 1 is fixedly mounted on the left end of the upper surface of the top plate, and a bidirectional threaded rod 1 is movably mounted in the middle of the bottom surface of the servo motor 1.

[0009] Preferably, one end of the bidirectional threaded rod 1 away from the servo motor 1 passes through the top plate and the two sets of sliders 1 and is movably connected to the upper surface of the movable plate, and the servo motor 2 is fixedly mounted on the right end on the upper surface of the top plate.

[0010] Preferably: a bidirectional threaded rod 2 is movably installed in the middle of the bottom surface of the servo motor 2, and one end of the bidirectional threaded rod 2 away from the servo motor 2 penetrates the top plate and the two sets of sliders 2 and is movably connected to the upper surface of the moving plate.

[0011] Preferably, the height adjustment structure comprises: a telescopic cylinder and a telescopic rod, and the middle of the left and right ends of the upper surface of the bottom plate are fixedly mounted with telescopic cylinders, and the number of the telescopic cylinders is two groups.

[0012] Preferably, telescopic rods are movably installed in the middle of the upper surfaces of the two groups of telescopic cylinders, there are two groups of telescopic rods, and the upper surfaces of the two groups of telescopic rods are fixedly connected to the bottom surface of the movable plate.

[0013] Preferably, a vibration-damping rubber pad is fixedly mounted on the bottom surface of the bottom plate, and mounting threaded holes are provided through the four sides of the upper surface of the bottom plate.

[0014] Preferably, the number of the mounting threaded holes is four groups, and the four groups of mounting threaded holes penetrate the vibration-damping rubber pad.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the function of the protective layer is to protect the surface of the workpiece from being worn by two groups of clamping plates one and two groups of clamping plates two, and the two-way threaded rod one is driven to rotate by servo motor one, and the rotation of the two-way threaded rod one causes the two groups of sliders one on the surface of the two-way threaded rod one to approach each other, and the two groups of sliders one approach each other and drive the two groups of clamping plates one to approach each other, thereby clamping the workpiece, and the two-way threaded rod two is driven to rotate by servo motor two, and the rotation of the two-way threaded rod two causes the two groups of sliders two on the surface of the two-way threaded rod two to approach each other, and the two groups of sliders two approach each other and drive the two groups of clamping plates two to approach each other, thereby clamping the workpiece.

[0016] Two sets of telescopic cylinders are used to drive two sets of telescopic rods to move up and down respectively. The up and down movement of the two sets of telescopic rods drives the moving plate to move up and down. The up and down movement of the moving plate drives the clamping structure to move up and down, so that the height of the clamping structure can be adjusted, which solves the above-mentioned problem. However, the structure of the existing clamps is generally simple. In addition, some complex workpieces require special clamps to be processed. These special clamps are not universal. After using up a batch of products, they cannot be used anymore, resulting in waste of clamps. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a flexible positioning and clamping unit.

[0018] Figure 2 This is a schematic diagram of the structure of a flexible positioning and clamping unit with some of its structures disassembled.

[0019] Figure 3 It is a structural schematic diagram of a height adjustment structure in a flexible positioning clamping unit.

[0020] Figure 4 It is a schematic diagram of the structure of a moving plate and a supporting plate in a flexible positioning and clamping unit.

[0021] Figure 5 It is a structural schematic diagram of a partial clamping structure in a flexible positioning clamping unit.

[0022] Figure 6 The present invention is a structural schematic diagram of a slider 1, a clamping block 1, a slider 2 and a clamping block 2 in a flexible positioning clamping unit.

[0023] Figure 7 The present invention is a structural schematic diagram of a slider 1, a clamping block 1, a clamping plate 1, a slider 2, a clamping block 2, a clamping plate 2 and a protective layer in a flexible positioning clamping unit.

[0024] Figure 8 It is a structural schematic diagram of a clamping structure in a flexible positioning clamping unit.

[0025] In the figure: 1-bottom plate, 101-vibration damping rubber pad, 102-installation threaded hole, 2-telescopic cylinder, 201-telescopic rod, 3-movable plate, 4-support plate, 5-slideway 1, 501-slot 1, 6-slot 2, 601-slot 2, 7-slider 1, 701-block 1, 702-clamping plate 1, 8-slider 2, 801-block 2, 802-clamping plate 2, 9-protective layer, 10-top plate, 11-servo motor 1, 1101-bidirectional threaded rod 1, 12-servo motor 2, 1201-bidirectional threaded rod 2. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] See also Figures 1 to 8In the embodiment of the utility model, a flexible positioning clamping unit includes a bottom plate 1, a height adjustment structure, a movable plate 3 and a clamping structure. The upper end of the bottom plate 1 is provided with a height adjustment structure, the upper end of the height adjustment structure is provided with a movable plate 3, and the upper end of the movable plate 3 is provided with a clamping structure. The clamping structure includes: a support plate 4, a slide groove 5, a card groove 501, a slide groove 2 6, a card groove 2 601, a slider 1 7, a card block 1 701, a clamping plate 1 702, a slider 2 8, a card block 2 801, a clamping plate 2 802, a protective layer 9, a top plate 10, a servo motor 11, a bidirectional threaded rod 1101, a servo motor 2 12 and a bidirectional threaded rod 2 1201. The rear end of the upper surface of the movable plate 3 is fixedly installed with a support plate 4, and the front side surface of the support plate 4 A slide groove 5 is provided on the left end, and a slide groove 2 6 is provided on the right end of the front surface of the support plate 4. The positions of the slide groove 1 5 and the slide groove 2 6 are relatively symmetrical. The slide groove 1 5 and the slide groove 2 6 both penetrate the upper and lower surfaces of the support plate 4. A card groove 501 is provided on the left and right surfaces inside the slide groove 1 5, and a card groove 2 601 is provided on the left and right surfaces inside the slide groove 2 6. Slide blocks 7 are movably installed on the upper and lower ends of the slide groove 1 5. The number of the slide blocks 7 is two groups. Blocks 701 are fixedly installed on the left and right surfaces of the two groups of slide blocks 7. The block 701 is movably connected to the inside of the card groove 501. A clamping plate 702 is fixedly installed on the front surfaces of the two groups of slide blocks 7. The number of the clamping plate 702 is two groups. The inside of the slide groove 2 6 Slide blocks 8 are movably installed at both ends of the upper and lower ends, and there are two groups of slide blocks 8. Blocks 801 are fixedly installed on the left and right surfaces of the two groups of slide blocks 8. Blocks 801 are movably connected to the inside of the card slot 601. Clamping plates 802 are fixedly installed on the front surfaces of the two groups of slide blocks 8. There are two groups of clamping plates 802. A protective layer 9 is fixedly installed on the side surfaces corresponding to each other of the two groups of clamping plates 702 and the side surfaces corresponding to each other of the two groups of clamping plates 802. A top plate 10 is fixedly installed on the upper surface of the support plate 4, and a servo motor 11 is fixedly installed on the left end of the upper surface of the top plate 10. A bidirectional threaded rod 1101 is movably installed in the middle of the bottom surface of the servo motor 11. The bidirectional threaded rod 1101 is far The end away from the servo motor 11 passes through the top plate 10 and the two groups of sliders 17 and is movably connected to the upper surface of the moving plate 3. The right end on the upper surface of the top plate 10 is fixedly installed with a servo motor 2 12. The middle of the bottom surface of the servo motor 2 12 is movably installed with a bidirectional threaded rod 2 1201. The end of the bidirectional threaded rod 2 1201 away from the servo motor 2 12 passes through the top plate 10 and the two groups of sliders 2 8 and is movably connected to the upper surface of the moving plate 3. The height adjustment structure includes: a telescopic cylinder 2 and a telescopic rod 201. The middle of the left and right ends on the upper surface of the bottom plate 1 are fixedly installed with telescopic cylinders 2, and the number of telescopic cylinders 2 is two groups. The middle of the upper surfaces of the two groups of telescopic cylinders 2 are movably installed with telescopic rods 201, and the number of telescopic rods 201 is two groups.The upper surfaces of the two sets of telescopic rods 201 are fixedly connected to the bottom surface of the moving plate 3. A vibration-damping rubber pad 101 is fixedly installed on the bottom surface of the bottom plate 1. The upper surface of the bottom plate 1 is provided with mounting threaded holes 102 on all sides. There are four sets of mounting threaded holes 102, and the four sets of mounting threaded holes 102 penetrate the vibration-damping rubber pad 101.

[0028] The working principle of the utility model is:

[0029] The utility model relates to a flexible positioning clamping unit. In a specific use process, firstly, a base plate 1 is fixed to a suitable position on a milling machine workbench through four groups of mounting threaded holes 102 and bolts, and a workpiece is placed between two groups of clamping plates 1 702 and two groups of clamping plates 2 802. The function of a protective layer 9 is to protect the surface of the workpiece from being worn by the two groups of clamping plates 1 702 and two groups of clamping plates 2 802. A servo motor 11 drives a bidirectional threaded rod 1101 to rotate. The bidirectional threaded rod 1101 rotates to make two groups of sliders 17 on the surface of the bidirectional threaded rod 1101 approach each other, and the two groups of sliders 17 are mutually engaged. The two groups of clamping plates 702 are brought closer together to clamp the workpiece, and the servo motor 12 is used to drive the bidirectional threaded rod 1201 to rotate. The rotation of the bidirectional threaded rod 1201 causes the two groups of sliders 8 on the surface of the bidirectional threaded rod 1201 to approach each other. The two groups of sliders 8 approach each other and drive the two groups of clamping plates 802 to approach each other to clamp the workpiece, and the two groups of telescopic cylinders 2 are used to drive the two groups of telescopic rods 201 to move up and down respectively. The two groups of telescopic rods 201 move up and down and drive the moving plate 3 to move up and down. The moving plate 3 moves up and down and drives the clamping structure to move up and down, so that the height of the clamping structure can be adjusted.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A flexible positioning clamping unit, comprising a base plate (1), a height adjustment structure, a movable plate (3) and a clamping structure, characterized in that: The upper end of the bottom plate (1) is provided with a height adjustment structure, the upper end of the height adjustment structure is provided with a moving plate (3), the upper end of the moving plate (3) is provided with a clamping structure, the clamping structure comprising: a support plate (4), a slide groove (5), a clamping groove (501), a slide groove (6), a clamping groove (601), a slider (7), a clamping block (701), a clamping plate (702), a slider (8), a clamping block (801), a clamping plate (802), a protective layer (9), a top plate (10), a servo motor (11), a bidirectional threaded rod (1101), a servo motor (12) and a bidirectional threaded rod (1201), the rear end of the upper surface of the moving plate (3) is fixedly mounted with the support plate (4), the left end of the front side surface of the support plate (4) is provided with a slide groove (5), the support plate ( A second slide groove (6) is provided on the right end of the front side surface of the support plate (4), and the positions of the first slide groove (5) and the second slide groove (6) are relatively symmetrical. The first slide groove (5) and the second slide groove (6) both penetrate the upper and lower side surfaces of the support plate (4), and a clamping groove (501) is provided on the left and right side surfaces inside the first slide groove (5), and a clamping groove (601) is provided on the left and right side surfaces inside the second slide groove (6). Slide blocks (7) are movably installed at the upper and lower ends of the first slide groove (5), and the number of the first slide groove (7) is two groups. A clamping block (701) is fixedly installed on the left and right side surfaces of the two groups of slide blocks (7), and the clamping block (701) is movably clamped in the inside of the clamping groove (501). A clamping plate (702) is fixedly installed on the front side surfaces of the two groups of slide blocks (7), and the number of the clamping plate (702) is two groups.

2. A flexible positioning clamping unit according to claim 1, characterized in that: Slide blocks (8) are movably mounted at both upper and lower ends of the interior of the second slide groove (6). The number of the second slide blocks (8) is two groups. The left and right side surfaces of the two groups of slide blocks (8) are fixedly mounted with second clamping blocks (801). The second clamping blocks (801) are movably clamped in the interior of the second clamping groove (601).

3. A flexible positioning clamping unit according to claim 1, characterized in that: The front side surfaces of the two groups of sliders (8) are fixedly mounted with clamping plates (802), the number of clamping plates (802) is two groups, and the side surfaces corresponding to each other of the two groups of clamping plates (702) and the side surfaces corresponding to each other of the two groups of clamping plates (802) are fixedly mounted with protective layers (9).

4. A flexible positioning clamping unit according to claim 1, characterized in that: A top plate (10) is fixedly mounted on the upper surface of the support plate (4); a servo motor (11) is fixedly mounted on the left end of the upper surface of the top plate (10); and a bidirectional threaded rod (1101) is movably mounted in the middle of the bottom surface of the servo motor (11).

5. A flexible positioning clamping unit according to claim 1, characterized in that: The end of the bidirectional threaded rod 1 (1101) away from the servo motor 1 (11) passes through the top plate (10) and the two sets of sliders 1 (7) and is movably connected to the upper surface of the movable plate (3); the right end on the upper surface of the top plate (10) is fixedly mounted with a servo motor 2 (12).

6. A flexible positioning clamping unit according to claim 1, characterized in that: A bidirectional threaded rod (1201) is movably installed in the middle of the bottom surface of the servo motor (12), and one end of the bidirectional threaded rod (1201) away from the servo motor (12) passes through the top plate (10) and the two sets of sliders (8) and is movably connected to the upper surface of the moving plate (3).

7. A flexible positioning clamping unit according to claim 1, characterized in that: The height adjustment structure comprises: a telescopic cylinder (2) and a telescopic rod (201), wherein the telescopic cylinder (2) is fixedly mounted in the middle of the left and right ends of the upper surface of the bottom plate (1), and the number of the telescopic cylinders (2) is two groups.

8. A flexible positioning clamping unit according to claim 7, characterized in that: A telescopic rod (201) is movably mounted in the middle of the upper surfaces of the two groups of telescopic cylinders (2), the number of the telescopic rods (201) is two groups, and the upper surfaces of the two groups of telescopic rods (201) are fixedly connected to the bottom surface of the moving plate (3).

9. The flexible positioning clamping unit according to claim 1, characterized in that: A vibration-damping rubber pad (101) is fixedly mounted on the bottom surface of the base plate (1), and mounting threaded holes (102) are provided through the four sides of the upper surface of the base plate (1).

10. A flexible positioning clamping unit according to claim 9, characterized in that: The number of the mounting threaded holes (102) is four groups, and the four groups of mounting threaded holes (102) penetrate the vibration-damping rubber pad (101).

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