Clamping structure capable of withdrawing from support without withdrawing from clamp in positioning mode

Abstract

The utility model discloses a positioning retreating support non-retreating clamp clamping structure, and particularly relates to the technical field of tool clamps, the positioning retreating support non-retreating clamp clamping structure comprises a first connecting piece, an air cylinder assembly, a second connecting piece, a pressing arm connecting piece, a shaft block, a supporting block, a stand column and a clamping air cylinder, the clamping air cylinder is installed on one side of the stand column, and the telescopic end of the clamping air cylinder is connected with the pressing arm connecting piece; a second connecting piece is installed at the top end of the pressing arm connecting piece, an air cylinder assembly is supported at the top end of the second connecting piece, a first connecting piece is hinged to the top end of the air cylinder assembly, a supporting block is bolted to the bottom end of the first connecting piece, a shaft block is slidably connected into the supporting block, and the supporting block has a positioning function and a supporting function. And the cylinder assembly is used for retreating after positioning. Positioning, supporting and withdrawing mechanisms are combined, the efficient and stable clamping effect is achieved, and the tool clamp is suitable for various tool clamp scenes needing accurate positioning and stable supporting.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool fixture technical field more specifically, the utility model relates to a kind of positioning exit support does not exit clamp clamping structure. BACKGROUND

[0002] In tool fixture technical field, the traditional fixture structure often has many deficiencies in the cooperation of positioning, supporting and exiting operation.For most conventional fixtures, the positioning element and the supporting part lack flexibility in design, and usually maintain a relatively fixed positional relationship during the entire machining process, making it difficult to achieve quick and convenient exit of positioning, which not only increases the time cost of workpiece loading and unloading and machining process conversion, reduces production efficiency, but also may affect the positioning accuracy due to tedious operation in repeated operation.

[0003] Some complex workpieces need to frequently change machining surface or perform multi-pass machining of different processes during machining, at which time if the positioning element of the traditional fixture cannot exit in time, it will hinder the tool path and machining field, limiting the diversity and complexity of machining processes.

[0004] In some mechanical parts milling, drilling, if the positioning part cannot quickly exit, it will increase the risk of collision between the tool and the positioning element, affecting machining safety and quality. At the same time, since the supporting structure of the traditional fixture does not fully consider the long-term stability under the condition of not exiting in design, the supporting part is prone to displacement or deformation when machining for a long time or under large cutting force, which affects the machining accuracy of the workpiece, increases the scrap rate, increases the production cost, and is difficult to meet the demand of modern high-precision and high-efficiency machining.

[0005] Therefore, a positioning exit support does not exit clamp clamping structure is proposed. UTILITY MODEL CONTENTS

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a positioning exit support does not exit clamp clamping structure to solve the problems raised in the background art.

[0007] To achieve the above object, the utility model provides the following technical scheme: A positioning exit support does not exit clamp clamping structure, including first connecting piece, cylinder assembly, second connecting piece, pressure arm connecting piece, axle block, support block, stand and clamping cylinder, the one side of stand is installed with clamping cylinder, the telescopic end of clamping cylinder is connected with pressure arm connecting piece, the top end of pressure arm connecting piece is installed with second connecting piece, the top end of second connecting piece supports cylinder assembly, the top end of cylinder assembly is hinged with first connecting piece, the bottom end of first connecting piece is hinged with support block, the support block is slidably connected with axle block, the support block has positioning and support, during clamping operation, the support block keeps in situ and does not exit, and through cylinder assembly for positioning can exit operation, and simultaneously the clamping cylinder is used to provide clamping force to ensure the stable fixation of workpiece during processing.

[0008] Preferably, the cylinder assembly comprises a first cylinder and a connecting rod, the first cylinder is installed on the second connecting piece, the first cylinder is provided with the connecting rod at the telescopic end, and the connecting rod is hinged with the first connecting piece at the top end.

[0009] Preferably, the pressure arm connecting piece is vertically welded with a guide block at one end, and the support block is slidably installed on the guide block.

[0010] Preferably, the guide block is provided with an axle hole, the support block is provided with two sliding grooves correspondingly, the axle block is fixed in the axle hole, and the axle block is slidably connected with the corresponding sliding grooves at both ends.

[0011] The utility model discloses the technical effect and advantage:

[0012] 1. The positioning of the support block can quickly exit the function, reducing the workpiece loading and unloading and process conversion time, when batch production or processing complex workpieces need to frequently change the processing surface, the traditional fixture is difficult to quickly exit due to the positioning element, and a lot of time is spent on adjusting the fixture, but the structure can quickly complete the positioning exit operation, so that the processing process is more smooth, and the production efficiency is significantly improved.

[0013] 2. The support block always keeps in situ and does not exit during processing, providing stable support for the workpiece, compared with the traditional fixture, can better resist cutting force and vibration, effectively avoids the displacement or deformation of the workpiece caused by unstable support, so as to ensure the machining precision, reduce the scrap rate and improve the product quality.

[0014] 3. The fixture structure can adapt to workpieces of different sizes and shapes, and through the flexible control of the cylinder assembly and the clamping cylinder, as well as the effective cooperation of the positioning and clamping functions of the support block, various workpieces can be conveniently and accurately clamped and processed, widening the application range of the fixture.

[0015] 4. The overall structure is relatively simple, the connection and action relationship of each component is clear and easy to understand, the operator is easy to master the operation method, the operation difficulty and training cost are reduced, and meanwhile, in the aspect of maintenance, due to the modularization and standardization design of the structure, each component is convenient to check, repair and replace, and the maintenance cost and time are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is an overall structure schematic view of the utility model.

[0017] Fig. 2 It is a shaft and pressure arm connecting piece connecting structure schematic view of the utility model.

[0018] Fig. 3 It is a support block structure schematic view of the utility model.

[0019] The figure signs are: 101, first connecting piece; 102, cylinder assembly; 103, second connecting piece; 104, pressure arm connecting piece; 105, shaft block; 106, support block; 107, stand column; 108, clamping cylinder; 109, sliding groove. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] As shown in the accompanying drawings, Figs. 1-3 A positioning exit support non-exit clamp clamping structure, including first connecting piece 101, cylinder assembly 102, second connecting piece 103, pressure arm connecting piece 104, shaft block 105, support block 106, stand column 107 and clamping cylinder 108, one side of stand column 107 is installed with clamping cylinder 108, the telescopic end of clamping cylinder 108 is connected with pressure arm connecting piece 104, the top end of pressure arm connecting piece 104 is installed with second connecting piece 103, the top end of second connecting piece 103 is supported with cylinder assembly 102, the top end of cylinder assembly 102 is hinged with first connecting piece 101, the bottom end of first connecting piece 101 is bolted with support block 106, support block 106 is slidably connected with shaft block 105 in it, support block 106 has positioning and supporting, in the clamping operation process, support block 106 remains in situ and does not exit, and through cylinder assembly 102 for positioning, it can exit operation, and simultaneously clamping cylinder 108 is used for providing clamping force to ensure the stable fixation of workpiece in the machining process.

[0022] In implementation, first, the column 107 is firmly installed on the machine tool workbench by bolts, ensuring that its position is horizontal and stable, providing a solid support foundation for the entire fixture. The levelness of the column 107 installation plane is measured using a level, with an error controlled within a very small range, and if necessary, it is calibrated by adjusting the shims. Then, the clamping cylinder 108 is installed on one side of the column 107, ensuring that the extension direction of the cylinder is consistent with the designed clamping action direction, and professional torque wrenches are used to tighten the connecting bolts, ensuring firm connection and preventing loosening during work.

[0023] The pressure arm connecting piece 104 is connected to the extension end of the clamping cylinder 108, which can be connected by a pin shaft to ensure reliable connection and flexible rotation. The second connecting piece 103 is installed at the top of the pressure arm connecting piece 104, connected by welding or high-strength bolts to ensure the connection strength between the two to withstand the force in subsequent work. The cylinder assembly 102 is installed at the top of the second connecting piece 103, ensuring accurate installation position, and the cylinder assembly 102 is debugged to check its air tightness and smoothness of action. By introducing a certain pressure gas into the cylinder, it can be observed whether the piston rod extends smoothly, and whether there is jamming or leakage.

[0024] The first connecting piece 101 is hinged to the top end of the cylinder assembly 102, allowing the first connecting piece 101 to rotate flexibly relative to the cylinder assembly 102. Apply an appropriate amount of lubricating grease at the hinge site to reduce wear and friction resistance. The support block 106 is bolted to the bottom end of the first connecting piece 101, ensuring firm connection, and the shaft block 105 is installed inside the support block 106, allowing the shaft block 105 to slide with the sliding groove 109 inside the support block 106, ensuring that the support block 106 can move smoothly under the guidance of the shaft block 105. After installation, manually push the support block 106 to check whether it slides smoothly on the guide block and whether the shaft block 105 and the sliding groove 109 are tightly matched without jamming.

[0025] During work, the workpiece to be processed is placed on the support block 106, and the position of the workpiece is adjusted according to its shape and size to ensure full contact with the positioning surface of the support block 106, ensuring that the workpiece is in the correct initial state of processing position.

[0026] Start the cylinder assembly 102, extend the cylinder piston rod, push the first connecting piece 101 to rotate through the connecting rod, and then drive the support block 106 to position the workpiece. At this time, the support block 106 moves in the predetermined direction under the restriction of the shaft block 105, accurately determining the position of the workpiece to ensure the position accuracy of the workpiece during subsequent processing. During positioning, the displacement of the support block 106 can be monitored by a sensor to ensure that the positioning accuracy meets the processing requirements.

[0027] After positioning is completed, the clamping cylinder 108 is started, the piston rod of the clamping cylinder 108 extends, the pressure arm connecting piece 104 is rotated around the connecting point of the pressure arm connecting piece 104 and the column 107, the pressure is transmitted to the cylinder assembly 102 and the support block 106 through the second connecting piece 103, and finally the clamping of the workpiece is realized. According to the material and processing technology requirements of the workpiece, the clamping force can be controlled by adjusting the inlet pressure of the clamping cylinder 108, so that the workpiece is firmly clamped and will not be deformed or damaged due to excessive clamping force. During clamping, a pressure sensor can be used to monitor the clamping force and adjust the working parameters of the clamping cylinder 108 in real time.

[0028] When positioning is needed during processing, for example, some special processing procedures or tool replacement, the reverse action of the cylinder assembly 102 is started, the cylinder piston rod is retracted, the first connecting piece 101 is reversely rotated, the support block 106 is smoothly withdrawn from the positioning area of the workpiece along the guide structure of the guide block and the shaft block 105. During the withdrawal process, the movement state of the support block 106 is monitored by a sensor to ensure smooth withdrawal and no interference with other components. At the same time, the clamping cylinder 108 keeps the clamping force stable to ensure that the workpiece is still firmly fixed on the clamp during positioning and withdrawal, and does not shift or loosen.

[0029] After positioning is completed, the machine tool processes the workpiece according to the preset processing program, such as milling, drilling, grinding, etc. During processing, the support block 106 continuously provides stable support force to resist the cutting force and vibration during processing, ensuring the processing accuracy and surface quality of the workpiece. The clamping cylinder 108 continuously maintains the clamping state to prevent the workpiece from shifting or deforming due to the action of the processing force. By monitoring the displacement, vibration and other parameters of the workpiece in real time during processing, abnormal conditions during processing can be found in time, and corresponding measures can be taken to adjust or stop processing, ensuring processing safety and quality.

[0030] The cylinder assembly 102 comprises a first cylinder and a connecting rod, the first cylinder is installed on the second connecting piece 103, the connecting rod is installed at the extension end of the first cylinder, and the top end of the connecting rod is hinged with the first connecting piece 101.

[0031] One end of the pressure arm connecting piece 104 is vertically welded with a guide block, and the support block 106 is slidably installed on the guide block.

[0032] The guide block is provided with an axle hole, and the support block 106 is provided with two sliding grooves 109 correspondingly, the shaft block 105 is fixed in the axle hole, and the shaft block 105 is slidably connected with the corresponding sliding grooves 109 at both ends.

[0033] In specific implementation, when the first cylinder operates, the support block 106 can be adjusted in height, and the shaft block 105 is positioned in a guided manner.

[0034] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A positioning exit support non-exit clamp clamping structure, characterized by, It includes first connecting piece (101), cylinder assembly (102), second connecting piece (103), pressure arm connecting piece (104), shaft block (105), support block (106), column (107) and clamping cylinder (108), one side of the column (107) is provided with clamping cylinder (108), the telescopic end of the clamping cylinder (108) is connected with pressure arm connecting piece (104), the top end of the pressure arm connecting piece (104) is provided with second connecting piece (103), the top end of the second connecting piece (103) is supported with cylinder assembly (102), the top end of the cylinder assembly (102) is hinged with first connecting piece (101), the bottom end of the first connecting piece (101) is bolted with support block (106), the support block (106) is slidably connected with shaft block (105), the support block (106) has positioning and supporting, in the clamping operation process, the support block (106) remains in place and does not exit, and the cylinder assembly (102) is used for positioning and then can exit operation, and the clamping cylinder (108) is used for providing clamping force to ensure the stable fixation of the workpiece in the machining process.

2. The fixture clamping structure of claim 1, wherein The cylinder assembly (102) includes a first cylinder and a connecting rod, the first cylinder is installed on the second connecting piece (103), and the telescopic end of the first cylinder is provided with the connecting rod, and the top end of the connecting rod is hinged with the first connecting piece (101).

3. The fixture clamping structure of claim 2, wherein The pressure arm connecting piece (104) is vertically welded with a guide block at one end, and the support block (106) is slidably installed on the guide block.

4. The fixture clamping structure of claim 3, wherein The guide block is provided with an axle hole, and the support block (106) is provided with two sliding grooves (109) correspondingly, the shaft block (105) is fixed in the axle hole, and the both ends of the shaft block (105) are slidably connected with the corresponding sliding grooves (109).

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