Flexible automatic clamp capable of machining various cylinder barrels

Abstract

The invention provides a flexible automatic clamp capable of machining various cylinder barrels. The flexible automatic clamp comprises an indexing rotary table assembly, a clamping structure, a tailstock assembly and an auxiliary supporting assembly. The clamping structure is connected with the indexing turntable assembly; when the indexing rotary table assembly works, the clamping structure is driven to rotate. The tailstock assembly and the indexing rotary table assembly are arranged at a certain interval. The auxiliary supporting assembly is arranged between the indexing rotary table assembly and the tailstock assembly. The clamping structure clamps one end of a workpiece, the tailstock assembly abuts against the other end of the workpiece, and when rotary machining is conducted, the auxiliary supporting assembly bears the workpiece. According to the flexible automatic clamp capable of machining the various cylinder barrels, machining of multiple rotation angles on the cylindrical surfaces of the cylinder barrels can be achieved, manual rotation angle operation is replaced, automatic operation is achieved, time and labor are saved, and machining efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cylinder barrel processing engineering, and more specifically, relates to a flexible automatic clamp capable of processing multiple varieties of cylinder barrels. Background Art

[0002] The oil-gas spring is the core component of the hydraulic system of the heavy-duty vehicle chassis suspension produced by the company. It is combined with the accumulator, height adjustment valve group, etc. to play the role of chassis shock absorption. At present, the oil-gas spring has entered the mass production stage.

[0003] The damping holes in the finishing process of the inner cylinder of the oil and gas spring are located on the cylindrical surface of the inner cylinder. Due to the simple structure of the damping holes, ordinary machine tools have been used for processing. First, the stepped hole on one side is processed, and then the angle is manually turned to continue processing the stepped hole on the other side. Manual rotation of the angle not only takes up manpower, but also has certain errors, making it difficult to ensure quality control in the mass production process. Especially in mass production, it is also very necessary to reduce the cost of personnel. Summary of the invention

[0004] The purpose of the present invention is to provide a flexible automatic clamp that can process various types of cylinder barrels, aiming to solve the technical problem in the prior art that the manual rotation angle is difficult to ensure the quality control of the batch production process.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a flexible automatic clamp that can process various types of cylinder barrels, including: a dividing turntable assembly, a clamping structure, a tailstock assembly and an auxiliary support assembly; the clamping structure is connected to the dividing turntable assembly; the dividing turntable assembly drives the clamping structure to rotate when operating; the tailstock assembly is arranged at a certain distance from the dividing turntable assembly; the auxiliary support assembly is arranged between the dividing turntable assembly and the tailstock assembly; the clamping structure clamps one end of the workpiece, and the tailstock assembly presses the other end of the workpiece, and when performing rotation processing, the auxiliary support assembly supports the workpiece.

[0006] Preferably, the indexing turntable assembly comprises a rotating component, and the rotating component is connected to the clamping structure; the rotating component can rotate continuously by 360°.

[0007] Preferably, the clamping structure comprises:

[0008] A pneumatic chuck connected to the indexing turntable assembly;

[0009] The chuck claw is installed on the pneumatic chuck, and the chuck claw can move radially relative to the pneumatic chuck.

[0010] Preferably, the moving distance of the chuck jaws is 1-10 mm.

[0011] Preferably, the auxiliary support assembly is provided with a contact block for contacting the workpiece.

[0012] Preferably, it also includes a workbench, on which one or more of the indexing turntable assembly, the auxiliary support assembly, and the tailstock assembly are installed.

[0013] Preferably, the workbench is provided with guide rails, and the guide rails are respectively adapted to the indexing turntable assembly, the auxiliary support assembly, and the tailstock assembly.

[0014] Preferably, the chuck jaws are provided with a sharp tooth structure which is mounted in cooperation with the pneumatic chuck.

[0015] The beneficial effect of the flexible automatic clamp capable of processing multiple types of cylinder barrels provided by the present invention is that compared with the prior art, the flexible automatic clamp capable of processing multiple types of cylinder barrels provided by the present invention can stably clamp parts of different lengths, and can also realize automatic rotation angle, reduce the labor intensity of the operator, and improve the consistency of product quality. The present invention also has the characteristics of being compatible with multiple types of cylinder barrels, having a large holding range, reliable operation, and low failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of a flexible automatic clamp capable of processing various types of cylinder barrels provided by an embodiment of the present invention Figure 1 ;

[0018] Figure 2 A schematic structural diagram of an auxiliary support assembly used in a flexible automatic clamp capable of processing multiple types of cylinder barrels provided by an embodiment of the present invention;

[0019] Figure 3 A schematic structural diagram of a tailstock assembly used in a flexible automatic fixture capable of processing multiple types of cylinder barrels provided by an embodiment of the present invention;

[0020] Figure 4 A schematic diagram of the connection state of a dividing turntable assembly and a clamping structure used in a flexible automatic clamp capable of processing multiple types of cylinder barrels provided in an embodiment of the present invention.

[0021] In the figure: 1. workbench; 11. guide rail; 2. indexing turntable assembly; 3. clamping structure; 31. pneumatic chuck; 32. chuck gripper; 4. auxiliary support assembly; 41. contact block; 5. tailstock assembly; 6. plug; 7. first mounting seat; 8. center. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] Please also read Figures 1 to 4 Now, a flexible automatic clamp capable of processing multiple varieties of cylinder barrels provided by the present invention is described. The flexible automatic clamp capable of processing multiple varieties of cylinder barrels comprises: a dividing turntable assembly 2, a clamping structure 3, a tailstock assembly 5 and an auxiliary support assembly 4; the clamping structure 3 is connected to the dividing turntable assembly 2; the dividing turntable assembly 2 can drive the clamping structure 3 to rotate when in operation; the tailstock assembly 5 is arranged at a certain distance from the dividing turntable assembly 2; the auxiliary support assembly 4 is arranged between the dividing turntable assembly 2 and the tailstock assembly 5; the clamping structure 3 clamps one end of the workpiece, and the tailstock assembly 5 presses against the other end of the workpiece, and when performing rotary processing, the auxiliary support assembly 4 supports the workpiece.

[0024] The indexing turntable assembly 2 and the tailstock assembly 5 are arranged in a straight line. The auxiliary support assembly 4 is arranged between the indexing turntable assembly 2 and the tailstock assembly 5. When processing the workpiece, one end of the workpiece is connected and fixed to the clamping structure 3, and the other end is connected to the tailstock assembly 5 in a tight connection state through the plug 6. At this time, the outer side of the workpiece contacts the auxiliary support assembly 4 and is supported by the auxiliary support assembly 4. The operation of the indexing turntable assembly 2 can drive the clamping structure 3 to rotate, and the rotation of the clamping structure 3 will drive the workpiece to rotate, thereby achieving the purpose of automatically rotating the workpiece.

[0025] As a specific implementation of the embodiment of the present invention, please refer to Figures 1 to 4 The indexing turntable assembly 2 includes a rotating component, and the rotating component is connected to the clamping structure 3. When the indexing turntable assembly 2 is in operation, the rotating component is subjected to force to rotate, driving the clamping structure 3 to rotate synchronously with the rotating component, thereby driving the workpiece to rotate synchronously. Specifically, the rotating component can rotate 360° continuously, thereby achieving the function of driving the workpiece to complete multi-angle processing. The indexing turntable assembly 2 is more specifically a CNC indexing turntable structure.

[0026] As a specific implementation of the embodiment of the present invention, please refer to Figures 1 to 4The clamping structure 3 includes a pneumatic chuck 31 and a chuck claw 32. The pneumatic chuck 31 is connected to the indexing turntable assembly 2. The chuck claw 32 is connected to the pneumatic chuck 31. Specifically, the pneumatic chuck 31 is connected to the rotating part of the indexing turntable assembly 2. The end surface of the pneumatic chuck 31 facing away from the indexing turntable assembly 2 is provided with a chuck claw 32. More specifically, the pneumatic chuck 31 is installed on the indexing turntable assembly 2. The chuck claw 32 includes three matching claw bodies. The chuck claw 32 can move radially relative to the pneumatic chuck 31. The chuck claw 32 is made of high-quality carbon steel, and is installed in conjunction with the pneumatic chuck 31 through the sharp tooth structure provided thereon, and the structure is firm, stable and without deviation. The cylinder barrel is clamped by the chuck claw 32, and the compatibility of cylinder barrels of various diameters can be achieved by replacing the chuck claw 32.

[0027] After the pneumatic chuck 31 is ventilated, the gas drives the internal mechanism of the pneumatic chuck 31 to move, so that the chuck jaws 32 move radially. The moving distance is 1-10 mm, preferably 5.5 mm, 6 mm. The workpiece is clamped by the chuck jaws 32. Among them, the maximum clamping force of the chuck jaws 32 is 45 KN. The maximum operating speed of the chuck jaws 32 is 2000 r / min.

[0028] As a specific implementation of the embodiment of the present invention, please refer to Figures 1 to 4 The tailstock assembly 5 is provided with a top 8 which can be automatically controlled to extend and retract, and the top can be used to position the workpiece. The tailstock assembly 5 adopts a hydraulic control mechanism, and realizes automatic extension and retraction control of the top 8 through hydraulic transmission movement.

[0029] As a specific implementation of the embodiment of the present invention, please refer to Figures 1 to 4 The auxiliary support assembly 4 plays a role in rough guidance and fall prevention for the installation of the workpiece. The auxiliary support assembly 4 is a plate structure, and a contact block 41 is provided on the plate structure. The contact block 41 is a nylon block. The contact block 41 ensures that there will be no scratches when it contacts the cylinder. When processing cylinders of different diameters, only the corresponding nylon block needs to be replaced to achieve compatibility. The plate structure is made of high-quality carbon steel, which is stable and reliable. The structure is light and easy to adjust.

[0030] Specifically, the auxiliary support assembly 4 is made of metal material to provide stable support. The contact block 41 is the part that contacts the workpiece and is made of nylon, which can provide support and reduce wear on the workpiece. The auxiliary support assembly 4 is installed on the workbench 1 through a screw seat. The contact block 41 is installed on the auxiliary support assembly 4 through screws.

[0031] As a specific implementation of the embodiment of the present invention, please refer to Figures 1 to 4The plug 6 is made of high-quality carbon steel, and the surface of the plug 6 is plated with an anti-corrosion coating. The anti-corrosion treatment of the plug 6 can effectively improve the service life of the plug 6. The plug 6 is placed at the end of the workpiece so that the top of the tailstock assembly 5 can support the workpiece, which plays an auxiliary role in positioning accuracy and processing accuracy.

[0032] As a specific implementation of the embodiment of the present invention, please refer to Figures 1 to 4 , further comprising a workbench 1. A dividing turntable assembly 2, an auxiliary support assembly 4; and a tailstock assembly 5 are respectively mounted on the workbench 1. Specifically, a plurality of guide rails 11 are provided on the workbench 1. The dividing turntable assembly 2 is slidably connected to the guide rail 11 via a first mounting seat 7. The auxiliary support assembly 4 is slidably connected to the guide rail 11. The tailstock assembly 5 is slidably connected to the guide rail 11 via a second mounting seat 8. The tailstock assembly 5 can be tightened onto the workbench 1 by screws arranged on the second mounting seat 8.

[0033] The pneumatic chuck 31 includes a chuck body connected to the rotating part of the indexing turntable assembly 2, a cylinder arranged on the chuck body, and a chuck claw 32 arranged on the chuck body. The cylinder drives the opening and closing of the chuck claw 32 by air pressure. The chuck claw 32 is the part of the pneumatic chuck 31 responsible for clamping the workpiece, and usually has a three-claw or four-claw design, which can be selected according to the shape and size of the workpiece. When the pneumatic chuck 31 is connected to the air source, the air pressure inside the cylinder will push the piston to move, thereby moving the chuck claw 32 outward or inward to complete the clamping or loosening action. The chuck claw 32 and the cylinder interact with each other through mechanical connections (such as slide rails, guide columns, etc.), so that the movement of the cylinder can be effectively transmitted to the chuck claw 32.

[0034] Usage process: Fix the pneumatic chuck 31 to the rotating part of the indexing turntable assembly 2 to ensure a firm connection. Select the appropriate chuck gripper 32 as needed and install it on the pneumatic chuck 31. Connect the air source: Connect the air source interface of the pneumatic chuck 31 to the compressed air system to ensure that the air source pressure meets the requirements of the equipment. Clamp the workpiece: Place the workpiece to be processed between the chuck grippers 32 to ensure that the workpiece is in the correct position. Start the pneumatic system, introduce the air source, and the cylinder drives the chuck grippers 32 to clamp the workpiece. Release the workpiece: After processing is completed, turn off the air source, return the cylinder, and the chuck grippers 32 release the workpiece. Take out the processed workpiece. Through the above steps, the pneumatic chuck 31 and the chuck grippers 32 can efficiently complete the clamping and processing of the workpiece.

[0035] The structure of the tailstock assembly 5 includes a tailstock body, a sleeve, a mandrel structure, and a hydraulic device. The tailstock body is mounted on the workbench 1 and can be adjusted longitudinally along the guide rail. A center 8 is installed inside the sleeve to tighten the workpiece. The movement of the sleeve is usually controlled by a hydraulic device. The mandrel structure connects the tailstock body and the sleeve to transmit motion and force. The hydraulic device includes a hydraulic pump, a valve, a pipeline, etc., which is used to provide power and control the operation of the hydraulic system.

[0036] The connection between the structures is usually achieved through mechanical connection and hydraulic connection: Mechanical connection: The tailstock body, sleeve, mandrel and other parts are connected by mechanical elements such as bolts and pins to ensure the stability and reliability of the structure. Hydraulic connection: Hydraulic cylinders, valves, pipelines and other hydraulic components are connected by liquid media. The operation of the hydraulic system enables the tailstock to achieve automatic tightening and loosening actions.

[0037] Usage process: The use process of the hydraulic tailstock involves the following steps: Install the tailstock: Install the tailstock on the workbench 1 and adjust it to the appropriate position. Connect the hydraulic system: Make sure that the hydraulic components such as the hydraulic pump, valves, and pipes are correctly connected, and check for leaks. Operate the tailstock: Activate the hydraulic system through the control panel or the operating handle to extend or retract the tailstock sleeve to tighten and loosen the workpiece. Processing operation: After the tailstock clamps the workpiece, start the lathe for normal cutting. Completion of the operation: After the processing is completed, the tailstock sleeve is quickly withdrawn through the hydraulic system to release the workpiece. Throughout the use process, the design of the hydraulic tailstock ensures the automation and precision of the operation, reduces the labor intensity of manual operation, and improves the processing efficiency and quality.

[0038] The flexible automatic clamp provided by the present invention can process various types of cylinder barrels. Compared with the prior art, it can stably clamp parts of different lengths and realize automatic rotation angle, thereby reducing the labor intensity of operators and improving the consistency of product quality. The present invention also has the characteristics of being compatible with various types of cylinder barrels, having a large clamping range, reliable operation and low failure rate.

[0039] The present invention provides a flexible automatic clamp capable of processing various types of cylinder barrels, which is mainly used in the processing of oil and gas spring cylinder barrels. It can realize the processing of multiple rotation angles on the cylindrical surface of the cylinder barrel on an ordinary machine tool, replace the manual rotation angle operation, realize automatic operation, save time and manpower, and improve processing efficiency.

[0040] The working process is as follows: the fixture is fixed in the guide rail 11 (i.e., T-slot) of the workbench 1 by T-bolts; according to the length of the part to be processed, the distance between the tailstock assembly 5 and the indexing turntable assembly 2 is adjusted, and the mounting nut is fixed after adjustment; the position of the auxiliary support assembly 4 is adjusted to be located at 1 / 3 and 2 / 3 of the cylinder placement position, respectively, and then the mounting screws are fixed; the cylinder part is placed on the auxiliary support assembly 4, and the pressure of the tailstock assembly 5 is controlled by the numerical control system (not included in the present invention) to extend the center 8 and press against the inner hole of the cylinder; the chuck claw 32 is controlled to open and fix the inner hole of the cylinder through the numerical control system; the machine tool processing is started to be controlled, and when the cylinder angle needs to be rotated, automatic rotation is achieved through the numerical control system, and then the next processing is carried out.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flexible automatic fixture capable of processing various types of cylinder barrels, characterized in that: include: An indexing turntable assembly (2), a clamping structure (3), a tailstock assembly (5) and an auxiliary support assembly (4); the clamping structure (3) is connected to the indexing turntable assembly (2); when the indexing turntable assembly (2) is in operation, the clamping structure (3) is driven to rotate; the tailstock assembly (5) is arranged at a certain distance from the indexing turntable assembly (2); the auxiliary support assembly (4) is arranged between the indexing turntable assembly (2) and the tailstock assembly (5); The clamping structure (3) clamps one end of the workpiece, and the tailstock assembly (5) presses against the other end of the workpiece. When rotary processing is performed, the auxiliary support assembly (4) supports the workpiece.

2. A flexible automatic clamp capable of processing various types of cylinder barrels as claimed in claim 1, characterized in that: The indexing turntable assembly (2) comprises a rotating component, which is connected to the clamping structure (3); the rotating component can rotate continuously through 360°.

3. A flexible automatic clamp capable of processing various types of cylinder barrels as claimed in claim 1, characterized in that: The clamping structure (3) comprises: A pneumatic chuck (31) connected to the indexing turntable assembly (2); A chuck claw (32) is mounted on the pneumatic chuck (31), and the chuck claw (32) can move radially relative to the pneumatic chuck (31).

4. A flexible automatic clamp capable of processing various types of cylinder barrels as claimed in claim 3, characterized in that: The moving distance of the chuck jaw (32) is 1-10 mm.

5. A flexible automatic clamp capable of processing various types of cylinder barrels as claimed in claim 1, characterized in that: The auxiliary support assembly (4) is provided with a contact block (41) for contacting the workpiece.

6. A flexible automatic clamp capable of processing various types of cylinder barrels as claimed in claim 1, characterized in that: It also comprises a workbench (1), on which one or more of the indexing turntable assembly (2), the auxiliary support assembly (4), and the tailstock assembly (5) are installed.

7. A flexible automatic clamp capable of processing various types of cylinder barrels as claimed in claim 6, characterized in that: The workbench (1) is provided with a guide rail (11), and the guide rail (11) is respectively adapted to the indexing turntable assembly (2), the auxiliary support assembly (4), and the tailstock assembly (5).

8. The flexible automatic clamp capable of processing various types of cylinder barrels as claimed in claim 3, characterized in that: The chuck jaws (32) are provided with a sharp tooth structure which is mounted in cooperation with the pneumatic chuck (31).

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