Flexible automatic clamp capable of machining various cylinder barrels

Abstract

The utility model 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 utility model belongs to cylinder processing engineering technical field, more specifically, relate to a flexible automatic clamp of processing various cylinder. BACKGROUND

[0002] The oil gas spring is the core element of the heavy load automobile chassis suspension hydraulic system produced by the company, and is combined with the accumulator, the height adjusting valve group and the like to play the chassis damping effect. At present, the oil gas spring has entered the batch production stage.

[0003] The damping hole machining of the inner cylinder part finish machining process of the oil gas spring is located on the cylindrical surface of the inner cylinder, and since the damping hole structure is simple, an ordinary machine tool is used for machining, the stepped hole on one side is machined first, and then the stepped hole on the other side is continuously machined by manually turning the angle. Manual rotation of the angle not only occupies personnel, but also has certain error, and it is difficult to guarantee the quality control in the batch production process. Especially in large-scale manufacturing, it is also necessary to reduce the cost of personnel. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a flexible automatic clamp of processing various cylinder, and aims at solving the technical problem that manual rotation of the angle is difficult to guarantee the quality control in the batch production process in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing a flexible automatic clamp of processing various cylinder, comprising: a dividing table assembly, a clamping structure, a tailstock assembly and an auxiliary support assembly; the clamping structure is connected with the dividing table assembly; the dividing table assembly drives the clamping structure to rotate when working; the tailstock assembly is arranged at a certain distance from the dividing table assembly; the auxiliary support assembly is arranged between the dividing table assembly and the tailstock assembly; one end of the workpiece is clamped by the clamping structure, the other end of the workpiece is tightly pressed by the tailstock assembly, and when rotary machining is carried out, the auxiliary support assembly supports the workpiece.

[0006] Preferably, the dividing table assembly comprises a rotating part, and the rotating part is connected with the clamping structure; the rotating part can rotate continuously by 360 degrees.

[0007] Preferably, the clamping structure comprises:

[0008] A pneumatic chuck is connected with the dividing table assembly;

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

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

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

[0012] Preferably, the workbench is further provided with one or more of the indexing turntable assembly, the auxiliary support assembly and the tailstock assembly.

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

[0014] Preferably, the chuck claw is provided with a tine structure matched with the pneumatic chuck.

[0015] The flexible automatic clamp for machining multiple types of cylinder provided by the utility model has the advantages that, compared with the prior art, the flexible automatic clamp for machining multiple types of cylinder can stably clamp parts of different lengths, can realize automatic rotation angle, reduces the labor intensity of operators, and improves product quality consistency. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0017] Figure 1 The structure diagram of the auxiliary support assembly adopted by the flexible automatic clamp for machining multiple types of cylinder provided by the utility model embodiment Figure 1 ;

[0018] Figure 2 The structure diagram of the auxiliary support assembly adopted by the flexible automatic clamp for machining multiple types of cylinder provided by the utility model embodiment

[0019] Figure 3 The structure diagram of the tailstock assembly adopted by the flexible automatic clamp for machining multiple types of cylinder provided by the utility model embodiment

[0020] Figure 4 The connection state diagram of the indexing turntable assembly and the clamping structure adopted by the flexible automatic clamp for machining multiple types of cylinder provided by the utility model embodiment

[0021] In the figure: 1, workbench; 11, guide rail; 2, indexing rotary table assembly; 3, clamping structure; 31, pneumatic chuck; 32, chuck hand claw; 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 of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0023] Please refer to Figures 1 to 4 , now a kind of flexible automatic clamp for machining multi-variety cylinder provided by the utility model will be described. The flexible automatic clamp for machining multi-variety cylinder, comprising: indexing rotary table assembly 2, clamping structure 3, tailstock assembly 5 and auxiliary support assembly 4;Clamping structure 3 is connected with indexing rotary table assembly 2;Indexing rotary table assembly 2 can drive clamping structure 3 to rotate when working;Tailstock assembly 5 is arranged at a certain distance from indexing rotary table assembly 2;Auxiliary support assembly 4 is arranged between indexing rotary table assembly 2 and tailstock assembly 5;One end of the workpiece is clamped by clamping structure 3, and the other end of the workpiece is tightly pressed by tailstock assembly 5, and the workpiece is supported by auxiliary support assembly 4 when rotary machining.

[0024] Indexing rotary table assembly 2 and tailstock assembly 5 are arranged in a straight line. Auxiliary support assembly 4 is arranged between indexing rotary table assembly 2 and tailstock assembly 5. When machining the workpiece, one end of the workpiece is connected and fixed with clamping structure 3, and the other end is in a tightly pressed connection state with tailstock assembly 5 through plug 6. At this time, the outer side of the workpiece is in contact with and supported by auxiliary support assembly 4. Indexing rotary table assembly 2 can drive clamping structure 3 to rotate, and the rotation of clamping structure 3 will drive the workpiece to rotate, thereby achieving the purpose of automatically rotating the workpiece.

[0025] As a specific embodiment of the utility model, please refer to Figures 1 to 4 Indexing rotary table assembly 2 includes a rotating part, and the rotating part is connected with clamping structure 3. When indexing rotary table assembly 2 works, the rotating part is forced to rotate, driving clamping structure 3 to rotate synchronously with the rotating part, and then driving the workpiece to rotate synchronously. Specifically, the rotating part can rotate continuously by 360°, thereby achieving the effect of driving the workpiece to complete multi-angle machining. More specifically, indexing rotary table assembly 2 is a numerical control indexing rotary table structure.

[0026] As a specific embodiment of the utility model, please refer to Figures 1 to 4, the clamping structure 3 includes a pneumatic chuck 31 and a chuck jaw 32. The pneumatic chuck 31 is connected with the indexing turntable assembly 2. The pneumatic chuck 31 is connected with the chuck jaw 32. Specifically, the pneumatic chuck 31 is connected with the rotating part of the indexing turntable assembly 2. The end face of the pneumatic chuck 31 away from the indexing turntable assembly 2 is provided with the chuck jaw 32. More specifically, the pneumatic chuck 31 is installed on the indexing turntable assembly 2. The chuck jaw 32 includes three matched jaw bodies. The chuck jaw 32 can move radially relative to the pneumatic chuck 31. The chuck jaw 32 is made of high-quality carbon steel and is installed in cooperation with the pneumatic chuck 31 through the sharp tooth structure provided thereon, and the structure is firm, stable and without deviation. The cylinder is clamped through the chuck jaw 32, and the chuck jaw 32 can be replaced to realize the compatibility of cylinders with various diameters.

[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 jaw 32 moves radially. The moving distance is 1-10mm, preferably 5.5mm or 6mm. The workpiece is clamped by the chuck jaw 32. The maximum clamping force of the chuck jaw 32 is 45KN. The highest use speed of the chuck jaw 32 is 2000r / min.

[0028] As a specific embodiment of the utility model, please refer to Figures 1 to 4 The tail seat assembly 5 is provided with a center 8 which can automatically control the extension and retraction, and the center can be used for positioning the workpiece. The tail seat assembly 5 adopts a hydraulic control mechanism, and the automatic extension and retraction control of the center 8 is realized through hydraulic transmission.

[0029] As a specific embodiment of the utility model, please refer to Figures 1 to 4 The auxiliary supporting assembly 4 plays a role of coarse guiding and anti-falling in the installation of the workpiece. The auxiliary supporting assembly 4 is a plate body structure, and the plate body structure is provided with a contact block 41. The contact block 41 is a nylon block. The contact block 41 ensures that the contact with the cylinder will not cause scratches. When processing cylinders with different diameters, only the corresponding nylon block needs to be replaced to realize the compatibility. The plate body structure is made of high-quality carbon steel, which is stable and reliable. The structure is light and convenient for adjustment.

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

[0031] As a specific embodiment of the utility model, please refer to Figures 1 to 4The plug 6 is made of high-quality carbon steel, and the surface of the plug 6 is provided with a corrosion-resistant coating, so that the plug 6 is subjected to corrosion-resistant treatment, and the service life of the plug 6 can be effectively improved. The plug 6 is arranged at the end of the workpiece, so that the tailstock assembly 5 can abut against the workpiece, and the positioning accuracy and machining accuracy are assisted.

[0032] As a specific embodiment of the utility model, please refer to Figures 1 to 4 The indexing rotary table assembly 2, the auxiliary support assembly 4 and the tailstock assembly 5 are respectively installed on the workbench 1. Specifically, a plurality of guide rails 11 are arranged on the workbench 1. The indexing rotary table assembly 2 is slidably connected with the guide rails 11 through a first mounting seat 7. The auxiliary support assembly 4 is slidably connected with the guide rails 11. The tailstock assembly 5 is slidably connected with the guide rails 11 through a second mounting seat 8. The tailstock assembly 5 can be screwed on the workbench 1 through the screw arranged on the second mounting seat 8.

[0033] The pneumatic chuck 31 comprises a chuck body connected with the rotating part of the indexing rotary table assembly 2, a cylinder arranged on the chuck body and a chuck jaw 32 arranged on the chuck body. The cylinder drives the opening and closing of the chuck jaw 32 through the action of air pressure. The chuck jaw 32 is the part responsible for clamping the workpiece in the pneumatic chuck 31, and is usually designed with three jaws or four jaws, which can be selected according to the shape and size of the workpiece. When the pneumatic chuck 31 is connected to the gas source, the air pressure in the cylinder will push the piston to move, so that the chuck jaw 32 moves outward or inward, completing the clamping or loosening action. The chuck jaw 32 and the cylinder are connected through mechanical connection (such as sliding rail, guide column, etc.) to realize the interaction between them, so that the movement of the cylinder can be effectively transmitted to the chuck jaw 32.

[0034] The use process is as follows: the pneumatic chuck 31 is fixed on the rotating part of the indexing rotary table assembly 2, and the connection is firm. According to the needs, the appropriate chuck jaw 32 is selected and installed on the pneumatic chuck 31. The gas source is connected: the gas source interface of the pneumatic chuck 31 is connected to the compressed air system, and the gas source pressure is ensured to meet the requirements of the equipment. Clamping the workpiece: the workpiece to be processed is placed between the chuck jaws 32, and the position of the workpiece is ensured to be correct. Starting the pneumatic system, connecting the gas source, the cylinder drives the chuck jaw 32 to clamp the workpiece. Loosen the workpiece: after the processing is completed, the gas source is closed, the cylinder is returned, and the chuck jaw 32 loosens the workpiece. The processed workpiece is taken out. Through the above steps, the pneumatic chuck 31 and the chuck jaw 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 installed on the workbench 1 and can be adjusted in position longitudinally along the guide rail. The sleeve is internally provided with a center 8 for clamping the workpiece. The movement of the sleeve is generally controlled by the hydraulic device. The mandrel structure connects the tailstock body and the sleeve to transmit motion and force. The hydraulic device includes a hydraulic pump, valves, pipes, etc. for providing power and controlling the operation of the hydraulic system.

[0036] The connection relationship between each structure is usually achieved through mechanical connection and hydraulic connection: mechanical connection: the tailstock body, sleeve, mandrel, etc. are connected by mechanical elements such as bolts and pins to ensure the stability and reliability of the structure. Hydraulic connection: hydraulic cylinders, valves, pipes, etc. are connected through liquid medium, and the operation of the hydraulic system enables the tailstock to automatically clamp and release.

[0037] Usage process: the usage process of the hydraulic tailstock involves the following steps: installing the tailstock: install the tailstock on the workbench 1 and adjust it to the appropriate position. Connect the hydraulic system: ensure that the hydraulic elements such as hydraulic pump, valve, pipe, etc. are correctly connected and check whether there is leakage. Operate the tailstock: through the control panel or operating handle, activate the hydraulic system to make the tailstock sleeve extend or retract, realize the clamping and releasing of the workpiece. Work operation: after the workpiece is clamped by the tailstock, start the lathe for normal cutting. Complete the work: after the processing is completed, the tailstock sleeve is quickly withdrawn by the hydraulic system to release the workpiece. During the entire usage process, the design of the hydraulic tailstock ensures the automation and accuracy of the operation, reduces the labor intensity of manual operation, and improves the processing efficiency and quality.

[0038] The flexible automatic clamp for machining multiple types of cylinder provided by the utility model can stably clamp parts of different lengths, can realize automatic rotation angle, reduces the labor intensity of operators, and improves product quality consistency.

[0039] The flexible automatic clamp for machining multiple types of cylinder provided by the utility model is mainly used in the machining process of oil gas spring cylinder, can realize the machining of multiple rotation angles on the cylindrical surface of the cylinder on the ordinary machine tool, replaces manual rotation angle operation, realizes automatic operation, saves time and manpower, and improves machining efficiency.

[0040] The working process is: the clamp is fixed in the guide rail 11 (T-shaped groove) of the workbench 1 through the T-shaped bolt; according to the length of the part to be machined, the distance between the tail seat assembly 5 and the indexing turntable assembly 2 is adjusted, and the fixed mounting nut is adjusted; the position of the auxiliary supporting assembly 4 is adjusted, and the auxiliary supporting assembly 4 is respectively located at 1 / 3 and 2 / 3 of the cylinder barrel placement position, and then the fixed mounting screw is adjusted; the cylinder barrel part is placed on the auxiliary supporting assembly 4, the pressure of the tail seat assembly 5 is controlled through the numerical control system (not contained in the utility model) to make the center 8 extend and tightly press the inner hole of the cylinder barrel; the chuck paw 32 is opened through the numerical control system to fix the inner hole of the cylinder barrel; the machine tool machining is started, when the cylinder barrel angle needs to be rotated, automatic rotation is realized through the numerical control system, and then the next step of machining is carried out.

[0041] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A flexible automatic fixture for machining multi-variety cylinder, characterized by, The utility model relates to a kind of worktable, including: Indexing rotary table assembly (2), clamping structure (3), tailstock assembly (5) and auxiliary support assembly (4);The clamping structure (3) is connected with the indexing rotary table assembly (2);The indexing rotary table assembly (2) drives the clamping structure (3) to produce rotation when operation;The tailstock assembly (5) is arranged at a certain distance from the indexing rotary table assembly (2);The auxiliary support assembly (4) is arranged between the indexing rotary table assembly (2) and the tailstock assembly (5); The clamping structure (3) clamps one end of workpiece, the tailstock assembly (5) is pressed tightly the other end of workpiece, when rotary processing, the auxiliary support assembly (4) supports the workpiece.

2. A flexible automatic fixture for machining multi-variety cylinder blocks according to claim 1, wherein The indexing rotary table assembly (2) includes rotating part, and the rotating part is connected with the clamping structure (3);The rotating part can rotate continuously by 360 °.

3. The flexible automatic fixture for machining multi-variety cylinder blocks according to claim 1, wherein The clamping structure (3) includes: Pneumatic chuck (31), connected with the indexing rotary table assembly (2); Chuck hand claw (32), installed on the pneumatic chuck (31), and the chuck hand claw (32) can move radially relative to the pneumatic chuck (31).

4. A flexible automatic fixture for machining multi-variety cylinder blocks according to claim 3, wherein The moving distance of the chuck hand claw (32) is 1-10mm.

5. The flexible automatic fixture for machining multi-variety cylinder blocks according to claim 1, wherein The auxiliary support assembly (4) is provided with contact block (41) for contacting with the workpiece.

6. A flexible automatic fixture for machining multi-variety cylinder blocks according to claim 1, wherein Also including workbench (1), and the workbench (1) is installed with one or more of the indexing rotary table assembly (2), the auxiliary support assembly (4), the tailstock assembly (5).

7. A flexible automatic fixture for machining multi-variety cylinder blocks according to claim 6, wherein The workbench (1) is provided with guide rail (11), and the guide rail (11) is respectively matched with the indexing rotary table assembly (2), the auxiliary support assembly (4), the tailstock assembly (5).

8. A flexible automatic fixture for machining multi-variety cylinder blocks according to claim 3, wherein The chuck hand claw (32) is provided with tine structure matched with the pneumatic chuck (31).

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