Multi-shaft hydraulic clamp for aluminum casting cover piece

Abstract

The utility model discloses a multi-shaft hydraulic clamp for an aluminum casting cover piece. The multi-shaft hydraulic clamp comprises a base plate. The multiple sets of positioning pins are connected to the upper end of the base plate and arranged in the length direction of the base plate. The supporting tables are arranged in the length direction of the base plate, and the supporting tables and the positioning pins are arranged in a staggered mode. The telescopic assemblies are symmetrically connected to the two sides of the upper end of the base plate, the multiple telescopic assemblies are arranged in the length direction of the base plate, and the inner sides of the telescopic assemblies are connected with abutting heads acting on the side walls of workpieces. The clamping assembly is arranged on the side portion of the supporting table and connected with the upper end of the base plate, the clamping assembly comprises a clamping arm acting on the bottom of a workpiece, a cylinder base and a hinge arm, the hinge arm is connected with the free end of the cylinder base and drives the clamping arm to rotate, and the cylinder base is provided with a side plate. The clamp matched with the engine cover body is designed, and the engine cover body can be supported and well positioned in the machining process, so that the machining precision is guaranteed, and the efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of aluminum product processing technology, specifically relating to a multi-axis hydraulic clamp for aluminum casting cover parts. Background Technology

[0002] In the machining process of engine cylinder heads, drilling and milling of the top surface of the cylinder head is a very important step. During the drilling and milling of the top surface of the cylinder head on the machine tool, a fixture is required to clamp and fix the engine cylinder head to prevent the workpiece from moving or deforming during the machining process.

[0003] For example, Chinese patent document with application number CN202122880646.1 discloses a multi-station fixture for processing aluminum casting parts, including a support frame and several fixing modules; the support frame includes an active frame, a tail frame and a support plate; the active frame is equipped with a drive motor; each fixing module includes a side fixing plate, an end fixing plate, a side clamping mechanism and an end clamping mechanism; the side fixing plate is fixed on the support plate and located on one side of the fixing module; the side clamping mechanism includes a first hydraulic cylinder and a first pressure block; the hydraulic rod of the first hydraulic cylinder points towards the side fixing plate, and the first pressure block is fixed to the end of the hydraulic rod on the first hydraulic cylinder; the end clamping mechanism is set on the support plate, and the end clamping mechanism includes a second hydraulic cylinder and a second pressure block, the second pressure block being fixed to the end of the hydraulic rod on the second hydraulic cylinder.

[0004] like Figure 8 As shown, multiple heat sinks are arranged along the length of the end of the cover. Due to the limitations of the cover's structure, the end is not flat, making it inconvenient to fix using conventional devices. This causes many inconveniences in the current processing, affecting processing efficiency. Furthermore, existing conventional fixtures cannot hold it securely, easily impacting processing accuracy. Therefore, designing a fixture suitable for engine cover bodies would help improve processing accuracy and efficiency. Utility Model Content

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A multi-axis hydraulic clamp for aluminum casting covers, comprising:

[0007] substrate;

[0008] Positioning pins, several sets of positioning pins are connected to the upper end of the substrate and are arranged along the length of the substrate;

[0009] A support platform is arranged along the length of the substrate and is staggered with the positioning pins;

[0010] A telescopic assembly is symmetrically connected to both sides of the upper end of the substrate. Several sets of telescopic assemblies are arranged along the length of the substrate. An abutment that acts on the side wall of the workpiece is connected to the inner side of the telescopic assembly.

[0011] A clamping assembly is disposed on the side of the support platform and connected to the upper end of the base plate. The clamping assembly includes a clamping arm acting on the bottom of the workpiece, a cylinder seat, and a hinge arm connected to the free end of the cylinder seat and driving the clamping arm to rotate. The cylinder seat has a side plate, and the clamping arms are rotatably connected in pairs to the side plate.

[0012] At least two sets of limiting components are also connected to the substrate along its length, and the head of the limiting component is provided with a limiting pressure head that acts on the upper end of the workpiece.

[0013] Furthermore, the hinge arm has a rotating rod connected to the clamping arm, and a pin that abuts against the side of another clamping arm.

[0014] Furthermore, the clamping arm has a bent cross-section.

[0015] Furthermore, each set of positioning pins has two pins, which are symmetrically distributed on both sides of the clamping assembly.

[0016] Furthermore, the upper end of the support platform is provided with an insertion hole that matches the bottom of the workpiece.

[0017] Furthermore, a lifting ring is connected to the substrate.

[0018] Furthermore, the contact points between the abutment, clamping arm, and limiting pressure head and the workpiece are provided with anti-slip textures.

[0019] Compared with the prior art, this utility model has the following advantages:

[0020] This utility model is designed with the structural characteristics of the engine cover in mind, and a fixture adapted to it is designed to support and position the engine cover well during the processing, thereby ensuring processing accuracy and improving efficiency.

[0021] The support platform and positioning pin can cooperate with the end of the workpiece, which can not only provide support for the workpiece, but also position it on the fixture so that it can be acted upon by the telescopic component and the clamping component. Attached Figure Description

[0022] Figure 1 A top view diagram illustrating a specific embodiment of this utility model;

[0023] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of AA;

[0024] Figure 3 for Figure 1Schematic diagram of the cross-sectional structure of BB;

[0025] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0026] Figure 5 This is a schematic diagram illustrating the three-dimensional structure of the present invention after the workpiece has been removed, according to a specific embodiment.

[0027] Figure 6 This is a three-dimensional structural diagram of the clamping component in a specific embodiment of the present utility model (view 1);

[0028] Figure 7 This is a three-dimensional structural diagram of the clamping component in a specific embodiment of the present utility model (view 2);

[0029] Figure 8 This is a three-dimensional structural diagram of the workpiece in a specific embodiment of the present utility model;

[0030] Figure 9 This is a three-dimensional structural diagram of the fixture and the bearing platform after assembly according to a specific embodiment of the present utility model;

[0031] The reference numerals in the accompanying drawings include:

[0032] 1. Base plate, 10. Lifting ring, 2. Positioning pin, 3. Support platform, 30. Insertion hole, 4. Telescopic component, 40. Abutment joint, 5. Clamping component, 50. Cylinder seat, 51. Side plate, 510. Hinge arm, 52. Rotating rod, 521. Pin, 522. Limiting component, 6. Limiting pressure head, 60. Anti-slip texture, 600. Workpiece, 7. Heat sink, 70. Column tube, 71. Support platform rotating seat, 8. Connecting plate, 81. Detailed Implementation

[0033] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual physical objects. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals in the drawings of the embodiments of this utility model correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" appear, indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0035] like Figure 1 - Figure 9 As shown, the present invention provides a multi-axis hydraulic clamp for aluminum casting cover parts, comprising a base plate 1, a positioning pin 2, a support platform 3, a telescopic assembly 4, and a clamping assembly 5.

[0036] Among them, several sets of positioning pins 2 are connected to the upper end of the substrate 1 and are arranged along the length of the substrate 1.

[0037] The support platform 3 is arranged along the length of the substrate 1 and is staggered with the positioning pin 2;

[0038] The telescopic components 4 are symmetrically connected to both sides of the upper end of the substrate 1. Several sets of telescopic components 4 are arranged along the length of the substrate 1. The inner side of the telescopic components 4 is connected to the abutment 40 that acts on the side wall of the workpiece 7.

[0039] The clamping assembly 5 is disposed on the side of the support platform 3 and connected to the upper end of the base plate 1. The clamping assembly 5 includes a clamping arm 50 acting on the bottom of the workpiece 7, a cylinder seat 51, and a hinge arm 52 connected to the free end of the cylinder seat 51 and driving the clamping arm 50 to rotate. The cylinder seat 51 has a side plate 510. The clamping arms 50 are rotatably connected to the side plate 510 in pairs. A spring (not shown in the figure) is provided between the two clamping arms 50.

[0040] At least two sets of limiting components 6 are also connected along the length direction of the substrate 1, and the head of the limiting component 6 is provided with a limiting pressure head 60 that acts on the upper end of the workpiece 7.

[0041] This utility model is designed with the structural characteristics of the engine cover in mind, and a fixture adapted to it is designed to support and position the engine cover well during the processing, thereby ensuring processing accuracy and improving efficiency.

[0042] Among them, the support platform 3 and the positioning pin 2 can cooperate with the end of the workpiece 7, which can not only provide support for the placement of the workpiece 7, but also be positioned on the fixture so that it can be acted upon by the telescopic component 4 and the clamping component 5.

[0043] In this technical solution, the vertical degree of freedom of the workpiece 7 is restricted by the support platform 3, the positioning pin 2 and the limiting pressure head 60; the telescopic components 4 and the clamping components 5 set on both sides of the workpiece 7 restrict the two degrees of freedom of the workpiece 7 in the horizontal direction, so that the workpiece 7 can rotate stably together with the support platform 8 and be processed by the cutting tool.

[0044] In this fixture, a clamping component 5 is set at the bottom of the workpiece 7 to clamp the heat sink 70 of the workpiece 7, so that it is not easy to generate severe vibration when machining the inner cavity of the workpiece 7.

[0045] Specifically, such as Figure 6 , Figure 7 As shown, the hinge arm 52 has a rotating rod 521 connected to the clamping arm 50, and a pin 522 that abuts against the side of another clamping arm 50.

[0046] The clamping arm 50 has a bent cross-section. After the cylinder seat 51 extends and retracts, the drive hinge arm 52 rotates around the rotating rod 521. Since the pin 522 abuts against the outer wall of the clamping arm 50, the pin 522 exerts an inward squeezing force on the outer wall of the clamping arm 50. This is compressed by the spring (not shown in the figure), causing the two clamping arms 50 to close, thereby clamping and fixing the heat sink 70 of the workpiece 7.

[0047] Each set of locating pins 2 has two pins, which are symmetrically distributed on both sides of the clamping assembly 5. This arrangement makes the workpiece 7 more stably supported.

[0048] Among them, such as Figure 8 As shown, due to the special structure of the workpiece 7, its end has a cylindrical tube 71 that cooperates with the support platform 3. Specifically, the cylindrical tube 71 is the connector that connects the workpiece 7 to the supply / exhaust pipe after assembly.

[0049] The upper end of the support platform 3 is also provided with an insertion hole 30 that matches the bottom of the workpiece 7. During the processing of this fixture, the cylindrical tube 71 can be inserted into the insertion hole 30 in the support platform 3 to form a fit.

[0050] In addition, a lifting ring 10 is connected to the base plate 1. The lifting ring 10 facilitates the handling of the entire fixture.

[0051] In this embodiment, the telescopic component 4, the clamping component 5, and the limiting component 6 can be a screw mechanism or other structures with telescopic functions, such as cylinders, hydraulic cylinders, etc.

[0052] In this embodiment, the contact points between the abutment 40, the clamping arm 50, and the limiting pressure head 60 and the workpiece 7 are provided with anti-slip textures 600. These anti-slip textures 600 can be implemented using existing technology and are therefore easily achieved. Thus, they at least possess the beneficial effects of the technical solutions described in the above embodiments, and will not be elaborated further here.

[0053] like Figure 9 As shown, this embodiment also discloses the assembly form of the fixture in the bearing platform 8. The bearing platform 8 has a connecting plate 81 that is bolted to the fixture. The rotating shaft of the bearing platform 8 is driven by the servo motor to drive the fixture to rotate together, and works in conjunction with the CNC machine tool to realize the cutting, drilling and other processes of the workpiece 7.

[0054] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A multi-axis hydraulic clamp for aluminum cast cover parts, characterized in that, include: base(1); Positioning pins (2), several sets of positioning pins (2) are connected to the upper end of the substrate (1) and are arranged along the length of the substrate (1); The support platform (3) is arranged along the length of the substrate (1) and is staggered with the positioning pin (2); Telescopic components (4) are symmetrically connected to both sides of the upper end of the substrate (1). Several sets of telescopic components (4) are arranged along the length direction of the substrate (1). The inner side of the telescopic components (4) is connected to an abutment (40) that acts on the side wall of the workpiece (7). A clamping assembly (5) is disposed on the side of the support platform (3) and connected to the upper end of the base plate (1). The clamping assembly (5) includes a clamping arm (50) acting on the bottom of the workpiece (7), a cylinder seat (51), and a hinge arm (52) connected to the free end of the cylinder seat (51) and driving the clamping arm (50) to rotate. The cylinder seat (51) has a side plate (510), and the clamping arms (50) are rotatably connected in pairs to the side plate (510). At least two sets of limiting components (6) are also connected along the length direction on the substrate (1), and the head of the limiting component (6) is provided with a limiting pressure head (60) that acts on the upper end of the workpiece (7).

2. The multi-axis hydraulic clamp for aluminum casting caps as described in claim 1, characterized in that: The hinge arm (52) has a rotating rod (521) connected to the clamping arm (50) and a pin (522) abutting against the side of another clamping arm (50).

3. A multi-axis hydraulic clamp for aluminum casting caps as described in claim 1 or 2, characterized in that: The clamping arm (50) has a bent cross section.

4. The multi-axis hydraulic clamp for aluminum casting cover parts as described in claim 3, characterized in that: Each set of positioning pins (2) has two, and they are symmetrically distributed on both sides of the clamping assembly (5).

5. A multi-axis hydraulic clamp for aluminum casting caps as described in claim 1, 2, or 4, characterized in that: The upper end of the support platform (3) is also provided with an insertion hole (30) that matches the bottom of the workpiece (7).

6. The multi-axis hydraulic clamp for aluminum casting cover parts as described in claim 5, characterized in that: A lifting ring (10) is connected to the substrate (1).

7. A multi-axis hydraulic clamp for aluminum casting caps as described in claim 1, 2, 4, or 6, characterized in that: The contact points between the abutment (40), clamping arm (50), limiting pressure head (60) and the workpiece (7) are provided with anti-slip textures (600).

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