Hydraulic tool clamp of machining center

Abstract

The utility model provides a hydraulic tool clamp of a machining center, and relates to the technical field of workpiece clamping devices. The hydraulic tool clamp comprises a rack, a hydraulic cylinder and a hydraulic cylinder, the rack comprises a supporting plate; the tool base is mounted on the supporting plate and is used for placing a workpiece; a hydraulic driving device; the hydraulic driving device is fixedly mounted on the tool base; a clamping structure; the clamping structure comprises a plurality of upper clamping structures and a plurality of side clamping structures; the upper clamping structure and the side clamping structure are arranged on the inner side and the outer side of the workpiece correspondingly. The hydraulic driving device is connected with the clamping structure, and the clamping structure is controlled to act through the hydraulic driving device so that the upper portion and the side portion of the workpiece can be clamped. According to the hydraulic tool clamp provided by the utility model, the upper clamping structure and the side clamping structure which are independent are matched with the hydraulic driving device, so that a workpiece is clamped in all directions, and meanwhile, the clamping efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to workpiece clamping device technical field especially relates to a machining center hydraulic tool fixture. BACKGROUND

[0002] In the traditional mechanical processing field, the fixing and positioning of workpieces are the key steps to ensure the processing precision and efficiency.

[0003] At present, in the machining center manufacturing commonly seen in the prior art, the workpiece is usually clamped by the method of hanging screw from the reverse side. Although this method is simple, it has low clamping efficiency, and the operator needs to manually install and tighten the screw from the reverse side of the workpiece. This process not only consumes time, but also has high labor intensity, resulting in low overall clamping efficiency.

[0004] In view of the above problems, the traditional clamping method is not suitable for modern efficient and automated production requirements. Therefore, how to improve the clamping efficiency is a technical problem to be solved at present. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is that in order to solve the problem of low clamping efficiency of workpieces on the machining center in the prior art, the utility model provides a machining center hydraulic tool fixture. The hydraulic tool fixture realizes automatic clamping of workpieces by using hydraulic principle, and has high and stable clamping efficiency, solving the problem of low clamping efficiency of workpieces on the machining center in the prior art.

[0006] The technical scheme adopted by the utility model to solve the technical problem is:

[0007] A machining center hydraulic tool fixture, comprising:

[0008] A rack; the rack comprises a support plate;

[0009] A tool base installed on the support plate for placing workpieces;

[0010] A hydraulic drive device; the hydraulic drive device is fixedly installed on the tool base;

[0011] A clamping structure; the clamping structure comprises a plurality of upper clamping structures and a plurality of side clamping structures; the upper clamping structures are used for clamping the upper side of the workpiece, and the side clamping structures are used for clamping the side of the workpiece;

[0012] The hydraulic drive device is connected with the clamping structure, and the clamping structure is controlled to act by the hydraulic drive device, so as to realize the clamping of the upper side and the side of the workpiece.

[0013] Optionally, the hydraulic fixture for the machining center further includes a positioning structure; the positioning structure includes a positioning pin and a positioning block; the positioning pin and the positioning block are respectively arranged on both sides of the fixture base.

[0014] Optionally, the hydraulic drive device includes a first hydraulic drive device and a second hydraulic drive device; the first hydraulic drive device and the second hydraulic drive device are respectively connected to the upper clamping structure and the side clamping structure to achieve upper and side clamping of the workpiece.

[0015] Optionally, the first hydraulic drive device includes a first oil cylinder and a first hydraulic rod; the second hydraulic drive device includes a second oil cylinder and a second hydraulic rod.

[0016] Optionally, the contact surfaces of the upper clamping structure, the side clamping structure and the workpiece are provided with serrations. Optionally, the frame further comprises: two "L"-shaped connecting plates, a connecting disc, a rotating motor, a turntable and a tailstock;

[0017] The two ends of the support plate rest against the two "L"-shaped connecting plates; one of the connecting plates is fixedly connected to the connecting disc; and the connecting disc is fixedly connected to the rotating motor; the other connecting plate is fixedly connected to the turntable; and the turntable is fixedly connected to the tailstock.

[0018] Optionally, the frame further includes a "C-shaped" support base; the support base is arranged below the rotating motor and the tailstock; and auxiliary support feet are provided on the support base.

[0019] Optionally, the frame further includes a base; the base is arranged below the support base.

[0020] The beneficial effects of the utility model are:

[0021] The hydraulic tooling fixture of the machining center of the utility model adopts the hydraulic principle to realize efficient and smooth automatic clamping, which significantly improves the clamping efficiency and the stability of the machining process; the fixture uses an independent upper clamping structure and a side clamping structure, and cooperates with a hydraulic drive device, so that the clamping structure can adaptively clamp the upper and side parts according to the actual shape of the workpiece, ensuring the stability and machining accuracy of the workpiece during the machining process, thereby improving the clamping efficiency; in addition, the fixture can not only make the workpiece being processed bear force evenly and stably, not easy to deform, and ensure the stability of the machining, but also avoid the need for milling clamping positions, simplify the machining process, and improve the utilization rate of the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1This is a schematic diagram of the overall structure of the hydraulic fixture of the utility model;

[0024] Figure 2 It is a top view of the overall structure of the hydraulic fixture of the utility model.

[0025] Figure 3 This is a schematic diagram of the corresponding position structure of the hydraulic fixture of the utility model to achieve the clamping action;

[0026] Figure 4 It is a structural diagram of a frame in a hydraulic fixture clamp of the utility model.

[0027] In the figure: 1-frame; 11-support plate; 12-connecting plate; 13-connecting disc; 14-rotating motor; 15-turntable; 16-tailstock; 17-support seat; 171-auxiliary support foot; 18-base; 2-tooling base; 3-hydraulic drive device; 31-first hydraulic drive device; 311-first oil cylinder; 312-first hydraulic rod; 32-second hydraulic drive device; 321-second oil cylinder; 322-second hydraulic rod; 4-clamping structure; 41-upper clamping structure; 42-side clamping structure; 421-baffle; 5-workpiece; 6-positioning structure; 61-positioning pin; 62-positioning block. DETAILED DESCRIPTION

[0028] The present invention will now be described in further detail. The embodiments described below are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] In the field of traditional mechanical processing, the fixation and positioning of the workpiece are key steps to ensure machining accuracy and efficiency. At present, the method of hanging screws from the reverse side is usually adopted for clamping. Although this method is simple, it has some obvious problems and limitations: 1) Low clamping efficiency: The traditional clamping method requires the operator to manually install and tighten the screws from the reverse side of the workpiece. This process is not only time-consuming but also labor-intensive, resulting in low overall clamping efficiency; 2) The clamping position needs to be processed in advance: In order to achieve the clamping by hanging screws from the reverse side, the workpiece usually needs to be pre-machined with holes or grooves for clamping, which adds additional processing steps and costs; 3) Low machine utilization: Since the clamping process is time-consuming and complicated, the waiting time of the machine during the clamping process increases, thereby reducing the machine utilization and overall production efficiency.

[0031] In order to solve the problem of low clamping efficiency of workpieces on machining centers in the prior art, the utility model provides a hydraulic fixture for machining centers, see Figure 1-Figure 4 As shown, the hydraulic fixture includes: a frame 1; the frame 1 includes a support plate 11; a fixture base 2, mounted on the support plate 11, for placing a workpiece 5; a hydraulic drive device 3; the hydraulic drive device 3 is fixedly mounted on the fixture base 2; a clamping structure 4; the clamping structure 4 includes a plurality of upper clamping structures 41 and a plurality of side clamping structures 42; the upper clamping structure 41 is used to clamp the upper side of the workpiece, and the side clamping structure 42 is used to clamp the side of the workpiece;

[0032] The hydraulic drive device 3 is connected to the clamping structure 4 , and the hydraulic drive device 3 controls the movement of the clamping structure 4 to achieve clamping of the workpiece 5 from above and to the side.

[0033] The hydraulic tooling fixture of the machining center of the utility model adopts the hydraulic principle to realize efficient and smooth automatic clamping, which significantly improves the clamping efficiency and the stability of the machining process; the fixture uses an independent upper clamping structure and a side clamping structure, and cooperates with a hydraulic drive device, so that the clamping structure can adaptively clamp the upper and side parts according to the actual shape of the workpiece, ensuring the stability and machining accuracy of the workpiece during the machining process, thereby improving the clamping efficiency; in addition, the fixture can not only make the workpiece being processed bear force evenly and stably, not easy to deform, and ensure the stability of the machining, but also avoid the need for milling clamping positions, simplify the machining process, and improve the utilization rate of the machine tool.

[0034] During the use of the hydraulic tooling fixture, first, the operator places the workpiece 5 on the tooling base 2 and uses the positioning structure 6 to preliminarily position it to ensure the accuracy of the position of the workpiece 5; then the first hydraulic drive device 31 is started to deliver hydraulic oil to the corresponding first cylinder 311, so that the upper clamping structure 41 presses the upper surface of the workpiece 5 downward to provide initial stability for the workpiece 5; once the workpiece 5 is stably clamped and the position is confirmed, the first hydraulic drive device 31 releases the upper clamping structure 41 in a timely manner to provide the necessary space for processing the upper surface of the workpiece 5; immediately afterwards, the second hydraulic drive device 32 starts working, delivers hydraulic oil into the second cylinder 321, drives the second hydraulic rod 322, and causes the side clamping structure 42 to clamp the workpiece from the side; in the clamped state, the workpiece is processed; after the processing is completed, the hydraulic system releases pressure, and the second hydraulic drive device 32 causes the side clamping structure 42 to retract, releasing the workpiece 5, completing the entire clamping and releasing process.

[0035] The hydraulic tooling fixture of the present invention realizes step-by-step clamping through a command-controlled hydraulic system. First, the correct installation of the workpiece is ensured through the precise control of the upper clamping structure 41, and then the action of the side clamping structure 42 completes the entire clamping process, thereby significantly improving the flexibility and precision of clamping. This clamping method not only ensures the stability of the workpiece 5 during the processing, ensures that the workpiece 5 is subjected to uniform force, and avoids deformation of the workpiece 5, but also realizes adaptive clamping of different workpieces 5 through adjustable hydraulic pressure, simplifies the operation process, and improves processing precision and production efficiency.

[0036] The present invention is a tooling fixture controlled by a pure hydraulic system. Compared with a control system that combines air pressure and hydraulics, it can provide greater clamping force and more precise force control. At the same time, it has a fast response speed and good stability, and can respond to operating instructions quickly and accurately, thereby improving production efficiency. Moreover, the present invention also avoids the instability that may be introduced by the air pressure system, ensuring that the fixture can provide consistent performance in various working environments. In addition, the present invention also reduces maintenance difficulty and cost, and is particularly suitable for high-precision and high-efficiency processing requirements.

[0037] The hydraulic fixture of the utility model is specially designed for U-shaped workpieces 5, such as a shelf for placing a cardiac defibrillator, and provides important advantages in processing; the fixture is controlled by step-by-step clamping, first fixing the top and then the sides, adapting to the shape of the U-shaped workpiece 5, ensuring the stability and accuracy of processing; in addition, its adjustable hydraulic system can adapt to different processing requirements, ensuring that the workpiece 5 is evenly stressed and avoids deformation, meeting the high-precision and high-quality surface requirements of medical equipment, simplifying the operating process and improving production efficiency, and is particularly suitable for medical equipment with strict processing requirements, ensuring the reliability of the final product and patient safety.

[0038] Specifically, the hydraulic tooling fixture of the machining center of the present invention also includes a positioning structure 6; the positioning structure 6 includes a positioning pin 61 and a positioning block 62; the positioning pin 61 and the positioning block 62 are respectively arranged on both sides of the tooling base 2, providing accurate positioning for the workpiece and enhancing the accuracy and reliability of assembly.

[0039] The hydraulic drive device 3 of the present invention preferably includes a first hydraulic drive device 31 and a second hydraulic drive device 32 ; the first hydraulic drive device 31 and the second hydraulic drive device 32 are respectively connected to the upper clamping structure 41 and the side clamping structure 42 to achieve upper and side clamping of the workpiece 5 .

[0040] Furthermore, the present invention preferably includes a first hydraulic drive unit 31 comprising a first cylinder 311 and a first hydraulic rod 312; and a second hydraulic drive unit 32 comprising a second cylinder 321 and a second hydraulic rod 322. This allows the operator to independently control the upper and side clamping actions, including the timing and sequence of clamping. This independent control strategy allows the clamp to provide a more precise and secure clamping solution for complex or easily deformable workpieces.

[0041] The present invention preferably has three upper clamping structures 41, which respectively correspond to and support the two side edges and the bottom edge of the U-shaped workpiece; and preferably has four side clamping structures 42, two in the front and one on each side. Such a layout realizes all-round clamping of the U-shaped workpiece 5.

[0042] Furthermore, the two side clamping structures 42 preferably located at the front of the utility model are respectively provided with baffles 421; this not only prevents the processing chips generated during the processing from entering the clamping structure, thereby affecting the stability and transmission efficiency of the clamping force, but also protects the hydraulic system from contamination and extends the service life of the clamp.

[0043] The present invention preferably provides serrations on the contact surfaces of the upper clamping structure 41, the side clamping structure 42 and the workpiece 5; thereby increasing the friction between the upper clamping structure 41 and the side clamping structure 42 and the workpiece 5, making the clamping more uniform and stable, and effectively preventing the deformation of the workpiece during the processing, and is particularly suitable for processing workpieces with high surface quality and precision requirements.

[0044] In order to improve the overall stability and rigidity of the clamp and enhance the flexibility and application range of the clamp, the preferred frame 1 of the utility model further includes: two "L"-shaped connecting plates 12, a connecting disc 13, a rotating motor 14, a turntable 15 and a tailstock 16;

[0045] The two ends of the support plate 11 rest on two "L"-shaped connecting plates 12; one of the connecting plates 12 is fixedly connected to the connecting disc 13; and the connecting disc 13 is fixedly connected to the rotating motor 14; the other connecting plate 11 is fixedly connected to the turntable 15; and the turntable 15 is fixedly connected to the tailstock 16.

[0046] The preferred frame 1 of the present invention also includes a "C-shaped" support base 17; the support base 17 is arranged below the rotating motor 14 and the tailstock 16; and the support base 17 is provided with an auxiliary support foot 171; thereby enhancing the stability of the overall structure, ensuring high precision and high stability during the processing process, and is particularly suitable for long-term and continuous processing operations.

[0047] Furthermore, the preferred frame 1 of the present invention further includes a base 18 ; the base 18 is disposed below the support base 17 ; and provides a solid foundation and support for the fixture.

[0048] With the above ideal embodiment of the present application as the inspiration, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A hydraulic fixture for a machining center, characterized in that: include: A frame (1), the frame (1) comprising a support plate (11); A tooling base (2) mounted on the support plate (11) for placing a workpiece (5); A hydraulic drive device (3), wherein the hydraulic drive device (3) is fixedly mounted on the tooling base (2); A clamping structure (4), the clamping structure (4) comprising a plurality of upper clamping structures (41) and a plurality of side clamping structures (42); the upper clamping structure (41) is used to clamp the upper side of a workpiece, and the side clamping structure (42) is used to clamp the side surface of the workpiece; The hydraulic drive device (3) is connected to the clamping structure (4), and the hydraulic drive device (3) controls the movement of the clamping structure (4) to achieve upper and side clamping of the workpiece (5).

2. The hydraulic fixture for machining center according to claim 1, characterized in that: It also includes a positioning structure (6); the positioning structure (6) includes a positioning pin (61) and a positioning block (62); the positioning pin (61) and the positioning block (62) are respectively arranged on both sides of the tooling base (2).

3. The hydraulic fixture for machining center according to claim 1, characterized in that: The hydraulic drive device (3) comprises a first hydraulic drive device (31) and a second hydraulic drive device (32); the first hydraulic drive device (31) and the second hydraulic drive device (32) are respectively connected to the upper clamping structure (41) and the side clamping structure (42) to achieve upper and side clamping of the workpiece (5).

4. The hydraulic fixture for machining center according to claim 3, characterized in that: The first hydraulic drive device (31) comprises a first oil cylinder (311) and a first hydraulic rod (312); the second hydraulic drive device (32) comprises a second oil cylinder (321) and a second hydraulic rod (322).

5. The hydraulic fixture for machining center according to claim 3, characterized in that: Contact surfaces between the upper clamping structure (41), the side clamping structure (42) and the workpiece (5) are provided with serrations.

6. The hydraulic fixture for machining center according to claim 1, characterized in that: The frame (1) further comprises: two "L"-shaped connecting plates (12), a connecting disc (13), a rotating motor (14), a turntable (15) and a tailstock (16); The two ends of the support plate (11) rest on the two "L"-shaped connecting plates (12); one of the connecting plates (12) is fixedly connected to the connecting disc (13); and the connecting disc (13) is fixedly connected to the rotating motor (14); the other connecting plate (12) is fixedly connected to the turntable (15); and the turntable (15) is fixedly connected to the tailstock (16).

7. The hydraulic fixture for machining center according to claim 6, characterized in that: The frame (1) further includes a "C-shaped" support base (17); the support base (17) is arranged below the rotating motor (14) and the tailstock (16); and an auxiliary support foot (171) is provided on the support base (17).

8. The hydraulic fixture for machining center according to claim 7, characterized in that: The frame (1) further includes a base (18); the base (18) is arranged below the support base (17).

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