Multi-station self-positioning hydraulic clamp

Abstract

The utility model discloses a multi -position self -positioning's hydraulic clamp can be according to the preset direction quick positioning, fixed work piece. Multi -position self -positioning's hydraulic clamp includes base, installs on the upper surface of base a plurality of hydraulic clamps and a plurality of groups of lifting drive arrangement and limiting piece, the hydraulic clamp is arranged on the base in rectangular matrix, the output of lifting drive arrangement is upwards, and is equipped with limiting piece, is used for driving limiting piece and carries out lifting motion, when the limiting piece rises, reaches with the work piece side of hydraulic clamp clamping same height, to make work piece rotate and stop rotating after abutting against the limiting piece periphery, when the limiting piece falls, does not interfere with the processing of work piece.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic clamping technology, and specifically refers to a multi-station self-positioning hydraulic clamp. Background Technology

[0002] When milling the surface of a workpiece, it is necessary to fix the workpiece in place to prevent it from moving or rotating. When a large number of workpieces are being machined simultaneously, multiple workpieces need to be fixed on the same fixture at the same time. Conventional array fixtures or pneumatic and hydraulic quick clamps have the disadvantage of high cost, and because they only have clamping / unclamping functions, they cannot meet the needs of products with directional positioning, especially when the workpiece to be machined is irregular or non-standard, as it is difficult to find a positioning datum, or manually finding a datum is extremely inefficient.

[0003] In addition, existing hydraulic clamps have the problem that machining waste can easily enter the clamp, making it difficult to clean, affecting clamping accuracy and production efficiency, and failing to meet the clean environment required for automated production by robots. Utility Model Content

[0004] The main purpose of this utility model is to provide a multi-station self-positioning hydraulic clamp to solve the problems existing in the prior art, which can quickly position and fix the workpiece according to a preset direction.

[0005] To achieve the above objectives, the solution of this utility model is:

[0006] A multi-station self-positioning hydraulic clamp includes a base, several hydraulic clamps mounted on the upper surface of the base, and several sets of lifting drive devices and limiting members; the hydraulic clamps are arranged in a rectangular array on the base; the output end of the lifting drive device faces upward and is equipped with the limiting member, which is used to drive the limiting member to perform lifting and lowering movements; when the limiting member is raised, it reaches the same height as the side of the workpiece held by the hydraulic clamp, so that the workpiece stops rotating by hitting the circumference of the limiting member; when the limiting member is lowered, it does not interfere with the processing of the workpiece.

[0007] The lifting drive device is a pneumatic cylinder or a hydraulic cylinder.

[0008] In the rectangular array of hydraulic clamps, a lifting drive device is provided between two adjacent hydraulic clamps on the left and right, and the limiting member is a disc.

[0009] The hydraulic clamp is fixed to the base by screws.

[0010] The base has several cavities for mounting the hydraulic cylinders of the hydraulic clamp.

[0011] The multi-station self-positioning hydraulic fixture also includes a dustproof ring that fits on the upper surface of the hydraulic fixture. The dustproof ring covers the outside of the jaws of the hydraulic fixture and has a through hole for the workpiece to pass through.

[0012] Preferably, the dust ring is made of an elastic material.

[0013] Preferably, the dustproof ring is fixed to the end face of the hydraulic clamp by means of screws.

[0014] After adopting the above technical solution, the present invention has the following technical effects:

[0015] This utility model provides several additional lifting drive devices on the base. These devices can drive corresponding limit components to move up and down. When the limit components are raised, they can restrict the rotation of the workpiece. As a result, the workpiece can be quickly placed into the hydraulic clamp that has not yet been clamped by hand or machine, and then rotated until it stops against the limit components, thus completing the angular positioning of the workpiece and meeting the angle / direction requirements during processing. Attached Figure Description

[0016] Figure 1 This is a perspective view of a specific embodiment of the present utility model.

[0017] Figure 2 This is a front view of a specific embodiment of the present utility model.

[0018] Figure 3 This is a top view of a specific embodiment of the present utility model.

[0019] Figure 4 This is a schematic diagram illustrating the use of a specific embodiment of the present utility model.

[0020] Explanation of icon numbers:

[0021] 1-Base; 11-Cavity; 2-Hydraulic clamp; 21-Hydraulic cylinder; 22-Claw; 23-Clamp seat; 3-Lifting drive device; 4-Limiting component; 5-Dustproof ring; 51-Perforation; a-Workpiece; b-Protrusion. Detailed Implementation

[0022] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0023] refer to Figure 1-4 As shown, this utility model discloses a multi-station self-positioning hydraulic clamp, including a base 1, several hydraulic clamps 2 mounted on the upper surface of the base 1, and several sets of lifting drive devices 3 and limiting members 4.

[0024] The hydraulic clamps 2 are arranged in a rectangular array on the base 1;

[0025] The output end of the lifting drive device 3 faces upward and is equipped with a limiter 4, which is used to drive the limiter 4 to perform lifting movements.

[0026] When the limiting member 4 is raised, it reaches the same height as the side of the workpiece a held by the hydraulic clamp 2, so that the workpiece a stops rotating by hitting the circumference of the limiting member 4; when the limiting member 4 is lowered, it does not interfere with the processing of the workpiece a.

[0027] Through the above solution, this utility model additionally sets several lifting drive devices 3 on the base 1. The lifting drive devices 3 can drive the corresponding limiting members 4 to perform lifting and lowering movements. When the limiting members 4 are raised, they can be used to restrict the rotation of workpiece a. Thus, the workpiece can be quickly placed into the hydraulic clamp 2 that has not yet been clamped by manual or mechanical means, and then rotated until it abuts against the limiting members 4, thereby completing the angular positioning of workpiece a and meeting the angle / direction requirements during processing.

[0028] The following are specific embodiments of the present invention.

[0029] The aforementioned lifting drive device 3 is a pneumatic cylinder or hydraulic cylinder, or a similar machine capable of outputting linear reciprocating motion.

[0030] In the rectangular array of hydraulic clamps 2 described above, a lifting drive device 3 is provided between two adjacent hydraulic clamps 2 on the left and right, and the limiting member 4 is a disc. Therefore, it can be used to position a workpiece a with a protrusion b on its side. After the workpiece a is rotated, the side of the protrusion b will abut against the limiting member 4, thus preventing further rotation. At the same time, since the limiting member 4 is a disc, it can adapt to workpieces of various shapes, as long as the maximum outer diameter of the workpiece is greater than the distance between the axis of the hydraulic clamp 2 and the limiting member 4.

[0031] The aforementioned hydraulic clamp 2 is fixed to the base 1 by screws, making it easy to disassemble and replace.

[0032] The base 1 has several cavities 11 for mounting the hydraulic cylinder 21 of the hydraulic clamp 2.

[0033] This utility model also includes a dustproof ring 5 that fits on the upper surface of the hydraulic clamp 2. The dustproof ring 5 covers the outside of the jaw 22 of the hydraulic clamp 2 to prevent debris from entering between the jaw 22 and the clamp seat 23 of the hydraulic clamp 2, and is provided with a through hole 51 for the workpiece a to pass through.

[0034] Furthermore, the dustproof ring 5 is made of elastic materials such as rubber, which can adapt to the deformation caused by the extrusion of workpiece a, thereby reducing wear on workpiece a.

[0035] Meanwhile, the dustproof ring 5 is fixed to the end face of the hydraulic clamp 2 by screw locking.

[0036] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A multi-station self-positioning hydraulic clamp, characterized in that: Includes a base, several hydraulic clamps mounted on the upper surface of the base, and several sets of lifting drive devices and limiting components; The hydraulic clamps are arranged in a rectangular array on the base; The output end of the lifting drive device faces upward and is equipped with the limiting member, which is used to drive the limiting member to perform lifting movements. When the limiting member rises, it reaches the same height as the side of the workpiece held by the hydraulic clamp, so that the workpiece stops rotating by hitting the circumferential surface of the limiting member; when the limiting member is lowered, it does not interfere with the processing of the workpiece.

2. The multi-station self-positioning hydraulic clamp as described in claim 1, characterized in that: The lifting drive device is a pneumatic cylinder or a hydraulic cylinder.

3. The multi-station self-positioning hydraulic clamp as described in claim 1, characterized in that: In the rectangular array of hydraulic clamps, a lifting drive device is provided between two adjacent hydraulic clamps on the left and right, and the limiting member is a disc.

4. The multi-station self-positioning hydraulic clamp as described in claim 1, characterized in that: The hydraulic clamp is fixed to the base by screws.

5. The multi-station self-positioning hydraulic clamp as described in claim 1, characterized in that: The base has several cavities for mounting the hydraulic cylinders of the hydraulic clamp.

6. The multi-station self-positioning hydraulic clamp as described in claim 1, characterized in that: It also includes a dustproof ring that fits onto the upper surface of the hydraulic clamp. The dustproof ring covers the outside of the jaws of the hydraulic clamp and has a through hole for the workpiece to pass through.

7. The multi-station self-positioning hydraulic clamp as described in claim 6, characterized in that: The dust ring is made of elastic material.

8. The multi-station self-positioning hydraulic clamp as described in claim 6, characterized in that: The dustproof ring is fixed to the end face of the hydraulic clamp by screws.

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