Self-adaptive hydraulic device

Abstract

The utility model relates to the technical field of hydraulic devices, in particular to a self-adaptive hydraulic device. According to the technical scheme, the self-adaptive clamp comprises a fixed clamping block, a sliding rod and a self-adaptive clamping plate, the self-adaptive clamping plate is connected into the fixed clamping block in a sliding mode, the self-adaptive clamping plate is fixedly installed at the end of the sliding rod, and a reset spring is elastically connected between the self-adaptive clamping plate and the fixed clamping block. According to the self-adaptive clamping device, the clamp hydraulic rod stretches out to enable the self-adaptive clamping plates to move, after the self-adaptive clamping plates make contact with a workpiece, along with stretching out of the clamp hydraulic rod, the workpiece exerts counter-acting force on the self-adaptive clamping plates to enable the self-adaptive clamping plates to move, and when the contact plates on all the sliding rods are separated from the contact switch, all the self-adaptive clamping plates are attached to the workpiece; at the moment, the shape formed by the multiple self-adaptive clamping plates is matched with the shape of the workpiece, self-adaption to the shape of the workpiece is achieved, and the problem that the machining efficiency is reduced due to replacement of a clamp matched with the workpiece is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic devices, in particular to an adaptive hydraulic device. Background Art

[0002] A hydraulic device is a device that uses liquid to transfer energy. The advantages of a hydraulic device include strong ability to transfer torque and power, fast response speed, precise control, and the ability to withstand high pressure. Therefore, hydraulic devices are often used in clamps. Hydraulic clamps have the advantages of large clamping force, reliable clamping, stable operation, and easy use. They are widely used in CNC machine tools, machining centers, and automated production.

[0003] In the prior art, hydraulic devices achieve mechanical movement or perform work through the flow of hydraulic pressure and pressure transmission in pipelines, so that a clamp can clamp a workpiece and fix the position of the workpiece for production and processing.

[0004] However, when this hydraulic device is used, due to the different shapes of different workpieces, it is necessary to replace the clamps corresponding to the workpieces to fix the workpieces. Replacing the clamps is time-consuming and reduces processing efficiency. Utility Model Content

[0005] The utility model aims to propose an adaptive hydraulic device to solve the problem in the background technology that the processing efficiency is reduced by replacing the clamps corresponding to the workpiece.

[0006] The technical solution of the utility model is: an adaptive hydraulic device, comprising:

[0007] A workbench, wherein a symmetrically arranged slide rail is fixedly installed on the top of the workbench, a movable table is slidably connected to the opposite sides of the two slide rails, and a clamp hydraulic rod is fixedly installed on the side of the movable table away from the slide rails;

[0008] The adaptive clamp comprises a fixed clamp block, a slide rod and a self-adaptive clamp plate, wherein the interior of the fixed clamp block is slidably connected to the self-adaptive clamp plate, the end of the slide rod is fixedly mounted with the self-adaptive clamp plate, and a reset spring is elastically connected between the self-adaptive clamp plate and the fixed clamp block;

[0009] The end of the clamp hydraulic rod is fixedly connected to the fixed clamp block, a positioning assembly is arranged inside the fixed clamp block, and a workpiece is arranged on the side of the self-adaptive clamp plate away from the slide rod.

[0010] Optionally, a plurality of slide grooves for sliding of self-adaptive splints are provided inside the fixed clamp block, and the plurality of slide grooves are distributed along a straight line on the fixed clamp block, a self-adaptive splint is arranged in each of the slide grooves, and the plurality of self-adaptive splints are parallel to each other.

[0011] Optionally, a contact plate is fixedly installed on the rod body of the sliding rod, a contact switch is fixedly installed on the side of the fixed clamp block, the contact plate is in contact with the contact switch, and the contact switch is electrically connected to the clamp hydraulic rod.

[0012] Optionally, the positioning assembly includes a hydraulic pipe, a positioning hydraulic rod and a positioning pressure block, the end of the hydraulic pipe is fixedly connected to the positioning hydraulic rod, the positioning hydraulic rod is fixedly installed inside the fixed clamp, and the bottom of the positioning hydraulic rod is fixedly installed with a positioning pressure block.

[0013] Optionally, a clearance groove is provided inside the fixed clamp block, the positioning pressing block slides in the clearance groove, and the bottom of the positioning pressing block contacts the sliding rod.

[0014] Optionally, the slide bar is a round bar or a square bar, and the bottom surface of the positioning block is provided with a groove matching the shape of the slide bar.

[0015] Optionally, the contact switch is electrically connected to the positioning hydraulic rod, and the positioning pressure block and the fixed clamp block clamp the sliding rod.

[0016] Compared with the prior art, the utility model has the following beneficial technical effects:

[0017] The utility model extends the hydraulic rod of the clamp to displace the self-adaptive clamp. After the self-adaptive clamp contacts the workpiece, as the hydraulic rod of the clamp extends, the reaction force exerted by the workpiece on the self-adaptive clamp causes the self-adaptive clamp to displace. When the contact plates on all the sliding rods are separated from the contact switches, it means that all the self-adaptive clamps are in contact with the workpiece. At this time, the shape formed by the multiple self-adaptive clamps is adapted to the shape of the workpiece, and the shape of the workpiece is adapted to avoid the problem of reduced processing efficiency caused by replacing the clamp adapted to the workpiece.

[0018] Furthermore, when the contact plate is separated from the contact switch, the positioning hydraulic rod extends downward to cause the positioning pressure block and the fixed clamp block to clamp the slide bar, thereby fixing the position of the slide bar, i.e., positioning the self-adaptive clamp. After multiple self-adaptive clamps adapt to the special-shaped workpiece, the position of the self-adaptive clamp is fixed. After multiple self-adaptive clamps adapt to the shape of the workpiece, the position of the self-adaptive clamp is fixed, thereby fixing the shape of the fixture formed by multiple self-adaptive clamps. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the overall structure of an embodiment of the utility model is given;

[0020] Figure 2 A schematic diagram of the structure of a fixed clamp block according to an embodiment of the utility model is given;

[0021] Figure 3 A schematic diagram of the structure of a self-adaptive splint according to an embodiment of the utility model is given;

[0022] Figure 4 A schematic front and cross-sectional view of a fixed clamping block structure of an embodiment of the utility model is given.

[0023] Figure numerals: 1. workbench; 2. slide rail; 3. moving table; 4. clamp hydraulic rod; 5. adaptive clamp; 51. fixed clamp block; 52. slide rod; 53. adaptive clamp; 54. return spring; 55. contact plate; 56. contact switch; 6. positioning assembly; 61. hydraulic pipe; 62. positioning hydraulic rod; 63. positioning pressure block. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0026] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example 1

[0030] This embodiment proposes an adaptive hydraulic device, such as Figure 1 As shown, it comprises a workbench 1, a symmetrically arranged slide rail 2 is fixedly installed on the top of the workbench 1, a moving table 3 is slidably connected to the opposite sides of the two slide rails 2, and a clamp hydraulic rod 4 is fixedly installed on the side of the moving table 3 away from the slide rail 2;

[0031] like Figure 2 and 3 As shown, the end of the clamp hydraulic rod 4 is provided with an adaptive clamp 5, including a fixed clamp block 51, a slide bar 52 and a self-adaptive clamp plate 53. The fixed clamp block 51 is internally slidably connected to the self-adaptive clamp plate 53, and the end of the slide bar 52 is fixedly installed with the self-adaptive clamp plate 53. The fixed clamp block 51 is provided with a plurality of slide grooves for the self-adaptive clamp plate 53 to slide. The plurality of slide grooves are distributed along a straight line on the fixed clamp block 51, and a self-adaptive clamp plate 53 is provided in each slide groove. The plurality of self-adaptive clamp plates 53 are parallel to each other. The workpiece is supported by a plurality of self-adaptive clamp plates 53, the contact area with the workpiece is increased, and the support stability is improved.

[0032] like Figure 3 As shown, a contact plate 55 is fixedly installed on the rod body of the slide rod 52, and a contact switch 56 is fixedly installed on the side of the fixed clamp block 51. The contact plate 55 contacts the contact switch 56, and the contact switch 56 is electrically connected to the clamp hydraulic rod 4 through the controller.

[0033] As the clamp hydraulic rod 4 is extended, each self-adaptive clamp plate 53 contacts the workpiece and is displaced. When all the self-adaptive clamp plates 53 contact the workpiece and are displaced, the self-adaptive clamp plates 53 drive the slide bar 52 to move so that the contact plate 55 thereon is separated from the contact switch 56, which means that each self-adaptive clamp plate 53 contacts the workpiece, and multiple self-adaptive clamp plates 53 are displaced to adapt to the shape of the workpiece. After the contact plate 55 is separated from the contact switch 56, the clamp hydraulic rod 4 stops moving.

[0034] A return spring 54 is elastically connected between the self-adaptive clamping plate 53 and the fixed clamping block 51 , and the return spring 54 returns the self-adaptive clamping plate 53 to its original position when no force is applied thereto.

[0035] like Figure 3 As shown, the end of the clamp hydraulic rod 4 is fixedly connected to the fixed clamp block 51, and a workpiece is arranged on the side of the self-adaptive clamp plate 53 away from the slide bar 52. The clamp hydraulic rod 4 extends through the sides of the two moving platforms 3, so that the fixed clamp block 51 moves, and the two fixed clamp blocks 51 move toward each other to clamp the workpiece.

[0036] A positioning assembly 6 is provided inside the fixed clamp block 51. When the contact plate 55 is separated from the contact switch 56, the positioning assembly 6 locks the position of the slide rod 52. At this time, the shape formed by the multiple self-adaptive clamps 53 is adapted to the shape of the workpiece, and then the clamp hydraulic rod 4 is extended so that the self-adaptive clamps 53 clamp and fix the workpiece.

[0037] In this embodiment, the self-adaptive splint 53 is displaced by extending the clamp hydraulic rod 4. After the self-adaptive splint 53 contacts the workpiece, as the clamp hydraulic rod 4 is extended, the reaction force exerted by the workpiece on the self-adaptive splint 53 causes the self-adaptive splint 53 to displace. When the contact plates 55 on all the sliding rods 52 are separated from the contact switches 56, it means that all the self-adaptive splints 53 are in contact with the workpiece. At this time, the shape formed by the multiple self-adaptive splints 53 is adapted to the shape of the workpiece, and the shape of the workpiece is adapted to the shape of the workpiece, thereby avoiding the problem of replacing the clamp adapted to the workpiece, which leads to reduced processing efficiency.

[0038] Example 2

[0039] Based on Example 1, this embodiment proposes an adaptive hydraulic device, such as Figure 4 As shown, the positioning assembly 6 includes a hydraulic pipe 61, a positioning hydraulic rod 62 and a positioning pressure block 63. The end of the hydraulic pipe 61 is fixedly connected to the positioning hydraulic rod 62. The positioning hydraulic rod 62 is fixedly installed inside the fixed clamp 51. The bottom of the positioning hydraulic rod 62 is fixedly installed with a positioning pressure block 63.

[0040] A clearance groove is provided inside the fixing clamp 51, and the positioning pressing block 63 slides in the clearance groove. The bottom of the positioning pressing block 63 contacts the slide bar 52. The slide bar 52 is a round bar or a square bar. The bottom surface of the positioning pressing block 63 is provided with a groove that matches the shape of the slide bar 52. The contact area between the positioning pressing block 63 and the slide bar 52 is increased, thereby increasing the fixing effect.

[0041] like Figure 4 As shown, the contact switch 56 is electrically connected to the positioning hydraulic rod 62 through the controller, the positioning pressure block 63 and the fixed clamp block 51 clamp the slide bar 52, and the self-adaptive clamp plate 53 and the fixed clamp block 51 clamp the position of the fixed slide bar 52 together, thereby fixing the position of the self-adaptive clamp plate 53.

[0042] In this embodiment, when the contact plate 55 is separated from the contact switch 56, the positioning hydraulic rod 62 extends downward to allow the positioning pressure block 63 and the fixed clamp block 51 to clamp the slide bar 52, thereby fixing the position of the slide bar 52, that is, positioning the self-adaptive clamp 53. After multiple self-adaptive clamps 53 adapt to the special-shaped workpiece, the position of the self-adaptive clamp 53 is fixed.

[0043] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An adaptive hydraulic device, characterized in that: include: A workbench (1), wherein a symmetrically arranged slide rail (2) is fixedly mounted on the top of the workbench (1), a movable platform (3) is slidably connected to the opposite sides of the two slide rails (2), and a clamp hydraulic rod (4) is fixedly mounted on the side of the movable platform (3) away from the slide rails (2); The adaptive clamp (5) comprises a fixed clamp block (51), a slide rod (52) and a self-adaptive clamp plate (53), wherein the interior of the fixed clamp block (51) is slidably connected to the self-adaptive clamp plate (53), the end of the slide rod (52) is fixedly mounted with the self-adaptive clamp plate (53), and a return spring (54) is elastically connected between the self-adaptive clamp plate (53) and the fixed clamp block (51); The end of the clamp hydraulic rod (4) is fixedly connected to the fixed clamp block (51), a positioning assembly (6) is arranged inside the fixed clamp block (51), and a workpiece is arranged on the side of the self-adaptive clamp plate (53) away from the slide rod (52).

2. An adaptive hydraulic device according to claim 1, characterized in that: A plurality of slide grooves for the self-adaptive clamping plate (53) to slide are provided inside the fixed clamping block (51), and the plurality of slide grooves are distributed along a straight line on the fixed clamping block (51), and a self-adaptive clamping plate (53) is arranged in each of the slide grooves, and the plurality of self-adaptive clamping plates (53) are parallel to each other.

3. The adaptive hydraulic device according to claim 1, characterized in that: A contact plate (55) is fixedly mounted on the rod body of the sliding rod (52), a contact switch (56) is fixedly mounted on the side of the fixed clamp block (51), the contact plate (55) is in contact with the contact switch (56), and the contact switch (56) is electrically connected to the clamp hydraulic rod (4).

4. An adaptive hydraulic device according to claim 3, characterized in that: The positioning assembly (6) comprises a hydraulic pipe (61), a positioning hydraulic rod (62) and a positioning pressure block (63); the end of the hydraulic pipe (61) is fixedly connected to the positioning hydraulic rod (62); the positioning hydraulic rod (62) is fixedly installed inside the fixed clamping block (51); and the bottom of the positioning hydraulic rod (62) is fixedly installed with a positioning pressure block (63).

5. An adaptive hydraulic device according to claim 4, characterized in that: The fixed clamp block (51) is provided with a clearance groove inside, and the positioning pressing block (63) slides in the clearance groove, and the bottom of the positioning pressing block (63) contacts the slide bar (52).

6. An adaptive hydraulic device according to claim 5, characterized in that: The slide bar (52) is a round bar or a square bar, and the bottom surface of the positioning pressing block (63) is provided with a groove matching the shape of the slide bar (52).

7. An adaptive hydraulic device according to claim 6, characterized in that: The contact switch (56) is electrically connected to the positioning hydraulic rod (62), and the positioning pressing block (63) and the fixed clamping block (51) clamp the sliding rod (52).

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