A hydraulic tooling fixture for machining workpieces on a machine tool

Abstract

This utility model discloses a hydraulic tooling fixture for machining workpieces on a machine tool, relating to the field of fixture technology. It includes a placement plate with two L-shaped mounting plates fixedly connected to its bottom. The mounting plates have two sets of mounting holes at their bottoms. A mounting seat, also L-shaped, is fixedly connected to one side of the placement plate. The mounting seat has two first sliding grooves at its bottom and a through movable groove between the two first sliding grooves at its top. A synchronous adjustment clamping mechanism is also included, comprising a base, a sliding seat, a hydraulic cylinder, and a pressure plate. Two bases and two pressure plates are provided, with the two bases fixed to opposite sides of the two mounting plates. This utility model allows for convenient and quick adjustment of the fixture, making it suitable for workpieces of various sizes. The adjustment operation is time-saving and labor-saving, with high efficiency, thus effectively improving workpiece machining efficiency and demonstrating high practicality.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a hydraulic tooling fixture for machining workpieces on a machine tool. Background Technology

[0002] Machine tools are machines used to manufacture machines, also known as machine tools or machine tools. They are generally classified into metal cutting machine tools, forging and pressing machine tools, and woodworking machine tools. In modern mechanical manufacturing, there are many methods for processing mechanical parts. In addition to cutting, there are casting, forging, welding, stamping, and extrusion. However, parts with high precision requirements and fine surface roughness requirements generally need to be finally processed by cutting methods on machine tools. Machine tools generally need to be equipped with hydraulic tooling fixtures to clamp and fix the workpiece, which facilitates the processing of the workpiece by the machine tool, as follows.

[0003] A search revealed a patent with authorization announcement number CN215092184U, which discloses a fixture for a machine tool machining center. The fixture includes a placement plate with a groove on its top. A sliding rod is fixedly connected to the inner wall of the groove. An L-shaped seat is slidably connected to the surface of the sliding rod. A fixing rod and a fastening bolt are fixedly connected to the top of the L-shaped seat. A clamping block is sleeved on the surface of the fastening bolt. A sliding block is fixedly connected to one end of the clamping block, and the sliding block is slidably connected to the surface of the fixing rod. A compression spring is sleeved on the surface of the fixing rod. This invention, through the cooperation of the sliding rod, L-shaped seat, fastening bolt, and clamping block, allows for easy adjustment and clamping according to the size of different parts, effectively preventing the stability of clamping from being affected by parts that are too large or too small. This greatly ensures the practicality of the fixture and the stability during clamping.

[0004] However, the above-mentioned fixture still has the following areas for improvement. For example, during operation, the positions of multiple clamping blocks need to be manually adjusted in sequence, and the adjustment method is to rotate the threaded rod, which makes the overall adjustment work time-consuming, labor-intensive, and inefficient. Therefore, it will greatly reduce the work efficiency of workpiece processing. The structure needs to be improved and the practicality needs to be enhanced. Utility Model Content

[0005] This utility model discloses a hydraulic tooling fixture for machining workpieces on a machine tool. It features a synchronous adjustment clamping mechanism, allowing the workpiece to be placed on a placement table before operation. A first hydraulic motor is then activated, rotating a first double-ended lead screw. This, in conjunction with two first sliders, causes two corresponding sliding seats in the same group to move synchronously closer to each other at their respective second sliding grooves. This brings two pressure plates closer together, and another group of two sliding seats also moves synchronously at their corresponding second sliding grooves due to the linkage effect, ensuring stability during pressure plate movement and subsequent operation. After adjusting the distance between the two pressure plates, four hydraulic cylinders move the two pressure plates downwards until they abut against the top of the workpiece, clamping and fixing it in place with the placement plate. Since adjusting the pressure plates does not require manual adjustment or individual adjustment, the adjustment work is time-saving, labor-saving, and highly efficient, significantly improving the efficiency of workpiece machining. In summary, this invention solves the problems in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model discloses a hydraulic tooling fixture for machining workpieces on a machine tool, comprising a placement plate, two L-shaped mounting plates fixedly connected to the bottom of the placement plate, two sets of mounting holes opened at the bottom of the mounting plates, a mounting seat fixedly connected to one side of the placement plate, the mounting seat being L-shaped, two first sliding grooves opened at the bottom of the mounting seat, and a through movable groove opened at the top of the mounting seat between the two first sliding grooves.

[0008] A synchronous adjustment clamping mechanism includes a base, a sliding seat, a hydraulic cylinder, and a pressure plate. Two bases and two pressure plates are provided, each fixed to an opposite side of two mounting plates. Two second sliding grooves are provided on the top of the base. Four sliding seats and four hydraulic cylinders are provided, arranged in pairs. Two sliding seats in the same pair are slidably connected to the two second sliding grooves via multiple sliding connectors. The hydraulic cylinders are fixedly installed on the top of the sliding seats. The bottom of the pressure plate is fixedly connected to the extension ends of two hydraulic cylinders located on both sides of the mounting plate. A horizontal plate is fixedly connected to one side of one of the bases. A first hydraulic motor is fixedly installed on the top of the horizontal plate. The output end of the first hydraulic motor is connected to a first double-ended lead screw. The first double-ended lead screw is connected to the corresponding base via two bearing seats. Two first sliders are symmetrically screwed onto the outside of the first double-ended lead screw. The two first sliders are fixedly connected to the bottom of two sliding seats at corresponding positions.

[0009] An auxiliary limiting mechanism is installed on the top and bottom of the mounting base.

[0010] Furthermore, the mounting plate, mounting base, and base are all made of aluminum alloy, and the mounting plate is fixedly connected to the mounting base and base by welding.

[0011] Furthermore, both pressure plates have anti-slip pads attached to their bottoms, and these anti-slip pads are made of rubber material.

[0012] Furthermore, there is a gap between the bottom of the pressure plate and the top of the placement plate, and the gap between the bottom of the pressure plate and the top of the placement plate is 10cm-20cm.

[0013] Furthermore, the auxiliary limiting mechanism includes a second double-ended lead screw, a second hydraulic motor, a movable plate, and a limiting plate. The second double-ended lead screw is rotatably mounted on the top of the mounting base via two bearing seats. The second hydraulic motor is fixedly mounted on the top of the mounting base, and the output end of the second hydraulic motor is connected to the shaft end of the second double-ended lead screw. There are two movable plates and two limiting plates. The tops of the two movable plates are slidably connected to two first sliding grooves via sliding connectors. Two second sliders are symmetrically screwed onto the outside of the second double-ended lead screw. The bottom of the second slider passes through the movable groove and is fixedly connected to the top of the movable plate. The top of the limiting plate is fixedly connected to the bottom of the movable plate, and the two limiting plates are respectively close to the front and rear sides of the placement plate.

[0014] Furthermore, the bottom of the limiting plate is attached to the top of the placement plate, and the bottom of the limiting plate is a smooth surface.

[0015] Furthermore, anti-slip raised particles are provided on the opposite side of both limiting plates.

[0016] The present invention has the following advantages over the prior art:

[0017] 1. This technical solution is equipped with a synchronous adjustment clamping mechanism, which allows for quick and convenient adjustment of the distance between the two pressure plates during operation, eliminating the need to adjust them one by one. This makes the adjustment work time-saving and labor-saving, and highly efficient, thereby greatly improving the work efficiency of workpiece processing and making it highly practical.

[0018] 2. This technical solution incorporates an auxiliary limiting mechanism, which allows for initial clamping and fixing of the workpiece after it has been placed on the placement plate. This mechanism assists in clamping and fixing the workpiece, improving the clamping and fixing effect. Furthermore, it eliminates the need for manual adjustment, saving time and effort and increasing efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the pressure plate mounting structure of this utility model;

[0022] Figure 3 This is an exploded view of the first double-ended lead screw installation structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the installation structure of the limiting plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the exploded structure of the movable plate installation of this utility model.

[0025] In the diagram: 1. Placement plate; 2. Mounting plate; 3. Mounting hole; 4. Mounting seat; 5. First slide groove; 6. Movable groove; 7. Synchronous adjustment clamping mechanism; 701. Base; 702. Sliding seat; 703. Hydraulic cylinder; 704. Pressure plate; 705. Second slide groove; 706. Horizontal plate; 707. First hydraulic motor; 708. First double-ended lead screw; 709. First slider; 710. Anti-slip pad; 8. Auxiliary limiting mechanism; 801. Second double-ended lead screw; 802. Second hydraulic motor; 803. Movable plate; 804. Limiting plate; 805. Second slider. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "surface", "side", "gap", "peripheral", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:

[0029] Reference Figures 1-5 A hydraulic tooling fixture for machining workpieces on a machine tool includes a placement plate 1. Two L-shaped mounting plates 2 are fixedly connected to the bottom of the placement plate 1. Two sets of mounting holes 3 are provided on the bottom of the mounting plates 2. A mounting seat 4, L-shaped, is fixedly connected to one side of the placement plate 1. Two first sliding grooves 5 are provided on the bottom of the mounting seat 4, and a through movable groove 6 is provided on the top of the mounting seat 4 between the two first sliding grooves 5. A synchronous adjusting clamping mechanism 7 is also included. The synchronous adjusting clamping mechanism 7 includes a base 701, a sliding seat 702, a hydraulic cylinder 703, and a pressure plate 704. Two bases 701 and two pressure plates 704 are provided. The two bases 701 are fixed to opposite sides of the two mounting plates 2. Two second sliding grooves 705 are provided on the top of the base 701. Four sliding seats 702 and four hydraulic cylinders 703 are provided, with the four sliding seats 702 arranged in pairs. Both sliding seats 702 in the same group are slidably connected to two second sliding grooves 705 through multiple sliding connectors. A hydraulic cylinder 703 is fixedly installed on the top of the sliding seat 702. The bottom of the pressure plate 704 is fixedly connected to the telescopic ends of the two hydraulic cylinders 703 located on both sides of the placement plate 1. A horizontal plate 706 is fixedly connected to one side of one of the bases 701. A first hydraulic motor 707 is fixedly installed on the top of the horizontal plate 706. The output end of the first hydraulic motor 707 is connected to a first double-ended lead screw 708. The first double-ended lead screw 708 is connected to the corresponding base 701 through two bearing seats. Two first sliders 709 are symmetrically screwed on the outside of the first double-ended lead screw 708. The two first sliders 709 are fixedly connected to the bottom of the two sliding seats 702 at corresponding positions. An auxiliary limiting mechanism 8 is installed on the top and bottom of the mounting base 4.

[0030] Mounting plate 2, mounting base 4, and base 701 are all made of aluminum alloy, and mounting plate 2 is fixedly connected to mounting base 4 and base 701 by welding. The bottom of both pressure plates 704 are fixedly fitted with anti-slip pads 710, which are made of rubber. There is a gap between the bottom of pressure plate 704 and the top of placement plate 1, and the gap between the bottom of pressure plate 704 and the top of placement plate 1 is 10cm-20cm.

[0031] In the specific implementation process, during operation, the workpiece can be placed on the placement table first, and then the first hydraulic motor 707 is started to drive the first double-headed lead screw 708 to rotate. This, in conjunction with the two first sliders 709, drives the corresponding two sliding seats 702 of the same group to move synchronously closer at the corresponding second slide groove 705, thereby driving the two pressure plates 704 to move closer to each other. The other two sliding seats 702 will also move synchronously at the corresponding second slide groove 705 due to the linkage effect, ensuring the stability of the pressure plate 704 during movement and the stability during subsequent operation. After adjusting the distance between the two pressure plates 704, the two pressure plates 704 can be driven to move down through the operation of the four hydraulic cylinders 703 until the pressure plates 704 abut against the top of the workpiece. This, in conjunction with the placement plate 1, clamps and fixes the workpiece. Since the adjustment of the pressure plates 704 does not require manual adjustment and does not need to be adjusted one by one, the adjustment work is time-saving and labor-saving, and the efficiency is high, thereby greatly improving the work efficiency of workpiece processing.

[0032] The mounting plate 2, mounting base 4, and base 701 are all made of aluminum alloy to ensure that they have high rigidity. The mounting plate 2 is fixedly connected to the mounting base 4 and base 701 by welding to ensure that they have high connection strength and are not easily broken or damaged.

[0033] Among them, the anti-slip pad 710 can increase the friction after the pressure plate 704 and the workpiece come into contact and are pressed together, thereby improving the pressing and fixing effect on the workpiece.

[0034] The distance between the pressure plate 704 and the placement plate 1 is 10cm-20cm to facilitate the placement of the workpiece and subsequent clamping and fixing. Specific Implementation Example 2:

[0036] Reference Figure 4 and Figure 5In a preferred embodiment, the auxiliary limiting mechanism 8 includes a second double-ended lead screw 801, a second hydraulic motor 802, a movable plate 803, and a limiting plate 804. The second double-ended lead screw 801 is rotatably mounted on the top of the mounting base 4 via two bearing seats. The second hydraulic motor 802 is fixedly mounted on the top of the mounting base 4, and the output end of the second hydraulic motor 802 is connected to the shaft end of the second double-ended lead screw 801. There are two movable plates 803 and two limiting plates 804. The tops of the two movable plates 803 are slidably connected to the two first sliding grooves 5 via sliding connectors. Two second sliders 805 are symmetrically screwed to the outside of the second double-ended lead screw 801. The bottom of the second sliders 805 passes through the movable groove 6 and is fixedly connected to the top of the movable plate 803. The top of the limiting plate 804 is fixedly connected to the bottom of the movable plate 803, and the two limiting plates 804 are respectively close to the front and rear sides of the placement plate 1.

[0037] The bottom of the limiting plate 804 is attached to the top of the placement plate 1, and the bottom of the limiting plate 804 is a smooth surface; anti-slip raised particles are provided on the opposite side of the two limiting plates 804.

[0038] In the specific implementation process, after the workpiece is placed on the placement plate 1, it can be positioned between the two limiting plates 804. Then, the second hydraulic motor 802 is started, and the second hydraulic motor 802 works to drive the second double-headed lead screw 801 to rotate. In conjunction with the two second sliders 805, the two movable plates 803 are moved closer to each other at the two first slide grooves 5. This causes the two limiting plates 804 to move closer to each other until the two limiting plates 804 abut against the side wall of the workpiece. This allows for the initial limiting and clamping of the workpiece, assisting in clamping and fixing the workpiece and improving the clamping and fixing effect.

[0039] The bottom of the limiting plate 804 is attached to the top of the placement plate 1 to ensure that the two limiting plates 804 can assist in limiting and clamping the thinner workpiece. The bottom of the limiting plate 804 is a smooth surface, which can reduce the sliding friction between the limiting plate 804 and the placement table.

[0040] The anti-slip protrusions on the opposite sides of the two limiting plates 804 are provided to ensure that there is sufficient friction after the limiting plates 804 are pressed against the side wall of the workpiece, so as to ensure the limiting clamping and fixing effect.

[0041] Working principle: Before operation, the device is first installed and fixed on the machine tool through the mounting holes 3 and fastening bolts on the mounting base 4. During operation, the workpiece can be placed on the placement table first, and then the second hydraulic motor 802 is started. The second hydraulic motor 802 drives the second double-ended lead screw 801 to rotate, which, together with the two second sliders 805, synchronously drives the two movable plates 803 to move closer together at the two first sliding grooves 5. This synchronously drives the two limiting plates 804 to move closer together until the two limiting plates 804 abut against the side wall of the workpiece. This provides initial limiting and clamping of the workpiece, assisting in clamping and fixing the workpiece. Then, the first hydraulic motor 707 is started, driving the first double-ended lead screw 708 to rotate, which, together with the two first sliders 709, drives the corresponding... Two sliding seats 702 in the same group move synchronously closer to each other at the corresponding second slide groove 705, thereby driving the two pressure plates 704 to move closer to each other. The other two sliding seats 702 will also move synchronously at the corresponding second slide groove 705 due to the linkage effect, ensuring the stability of the pressure plate 704 during movement and subsequent operation. After adjusting the distance between the two pressure plates 704, the two pressure plates 704 can be driven to move down by the operation of the four hydraulic cylinders 703 until the pressure plate 704 abuts against the top of the workpiece. Then, in conjunction with the placement plate 1, the workpiece can be clamped and fixed. Since the adjustment of the pressure plates 704 does not require manual adjustment and does not need to be adjusted one by one, the adjustment work is time-saving and labor-saving, and the efficiency is high, thereby greatly improving the work efficiency of workpiece processing.

[0042] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A hydraulic tooling fixture for machining workpieces on a machine tool, comprising a placement plate (1), characterized in that: The bottom of the placement plate (1) is fixedly connected to two L-shaped mounting plates (2). The bottom of the mounting plate (2) is provided with two sets of mounting holes (3). The side of the placement plate (1) is fixedly connected to a mounting base (4). The mounting base (4) is L-shaped. The bottom of the mounting base (4) is provided with two first sliding grooves (5). The top of the mounting base (4) is provided with a through movable groove (6) between the two first sliding grooves (5). A synchronous adjusting clamping mechanism (7) is provided, comprising a base (701), a sliding seat (702), a hydraulic cylinder (703), and a pressure plate (704). Two bases (701) and two pressure plates (704) are provided. The two bases (701) are fixed to opposite sides of two mounting plates (2). Two second sliding grooves (705) are provided on the top of each base (701). Four sliding seats (702) and four hydraulic cylinders (703) are provided. The four sliding seats (702) are arranged in pairs. Two sliding seats (702) in the same pair are slidably connected to the two second sliding grooves (705) via multiple sliding connectors. The hydraulic cylinder (703) is fixedly installed on the sliding seat (701). At the top of 02), the bottom of the pressure plate (704) is fixedly connected to the telescopic ends of two hydraulic cylinders (703) located on both sides of the placement plate (1). A horizontal plate (706) is fixedly connected to one side of one of the bases (701). A first hydraulic motor (707) is fixedly installed on the top of the horizontal plate (706). A first double-ended screw (708) is connected to the output end of the first hydraulic motor (707). The first double-ended screw (708) is connected to the corresponding base (701) through two bearing seats. Two first sliders (709) are symmetrically screwed on the outside of the first double-ended screw (708). The two first sliders (709) are fixedly connected to the bottom of two sliding seats (702) at the corresponding positions. An auxiliary limiting mechanism (8) is installed on the top and bottom of the mounting base (4).

2. The hydraulic tooling fixture for machining workpieces on a machine tool according to claim 1, characterized in that: The mounting plate (2), mounting base (4) and base (701) are all made of aluminum alloy, and the mounting plate (2) is fixedly connected to the mounting base (4) and base (701) by welding.

3. A hydraulic tooling fixture for machining workpieces on a machine tool according to claim 1, characterized in that: The bottom of both pressure plates (704) is fitted with an anti-slip pad (710), which is made of rubber material.

4. A hydraulic tooling fixture for machining workpieces on a machine tool according to claim 1, characterized in that: There is a gap between the bottom of the pressure plate (704) and the top of the placement plate (1), and the gap between the bottom of the pressure plate (704) and the top of the placement plate (1) is 10cm-20cm.

5. A hydraulic tooling fixture for machining workpieces on a machine tool according to claim 2, characterized in that: The auxiliary limiting mechanism (8) includes a second double-ended lead screw (801), a second hydraulic motor (802), a movable plate (803), and a limiting plate (804). The second double-ended lead screw (801) is rotatably mounted on the top of the mounting base (4) via two bearing seats. The second hydraulic motor (802) is fixedly mounted on the top of the mounting base (4), and the output end of the second hydraulic motor (802) is connected to the shaft end of the second double-ended lead screw (801). Both the movable plate (803) and the limiting plate (804) are provided with There are two movable plates (803), the tops of which are slidably connected to two first sliding grooves (5) through sliding connectors. The second double-headed screw (801) is symmetrically screwed with two second sliders (805). The bottom of the second slider (805) passes through the movable groove (6) and is fixedly connected to the top of the movable plate (803). The top of the limiting plate (804) is fixedly connected to the bottom of the movable plate (803), and the two limiting plates (804) are respectively close to the front and rear sides of the placement plate (1).

6. A hydraulic tooling fixture for machining workpieces on a machine tool according to claim 5, characterized in that: The bottom of the limiting plate (804) is attached to the top of the placement plate (1), and the bottom of the limiting plate (804) is a smooth surface.

7. A hydraulic tooling fixture for machining workpieces on a machine tool according to claim 5, characterized in that: The two limiting plates (804) are provided with anti-slip raised particles on opposite sides.

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