Self-locking clamping jig

Abstract

The utility model discloses a self-locking clamping jig, and aims to provide the self-locking clamping jig which is efficient and rapid to operate, capable of automatically locking, unlocking and discharging, high in structural connection stability and operation precision and capable of improving the machining progress and efficiency. The device comprises a base platform, a mounting seat is detachably connected to the base platform, a plurality of workpiece positioning grooves are formed in the middle of the upper surface of the mounting seat, discharging structures are movably connected into the workpiece positioning grooves, locking structures are movably connected to the two sides of each workpiece positioning groove, and discharging driving assemblies are detachably connected to the discharging structures. The locking structure is detachably connected with a locking driving assembly, an air inlet valve is installed on the base platform, the locking driving assembly and the discharging driving assembly are both connected with the air inlet valve in a sealed mode, and the locking driving assembly is connected with a synchronization assembly. The device has the advantages that operation is efficient and rapid, automatic locking, unlocking and discharging are achieved, structural connection stability and operation precision are high, and the machining progress and efficiency are improved; the workpiece is protected; and the mobility of the jig is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamping jigs, and particularly to a self-locking clamping jig. BACKGROUND

[0002] In the machining process of a workpiece, a related jig is used for clamping and positioning and locking. The jig is one of the auxiliary tools used for a large number of repeated operations in mold tools. Automatic locking is one of the commonly used structures in the jig type. The stability of the workpiece in the machining process is ensured by locking the workpiece. Therefore, the stability and precision of the workpiece clamping and the operation efficiency of the jig are crucial.

[0003] Chinese patent authorization announcement number: CN 216327873 U, authorization announcement day is April 19, 2022, the utility model relates to a kind of automatic locking jigs for metal workpiece machining, including jig main body, the upper surface of jig main body is equipped with sliding seat, and the outer side of sliding seat is slidably connected with moving base, the inside of sliding seat is provided with two-way screw rod, the upper of moving base is provided with push plate, the both sides of jig main body are equipped with side plate, and installation rod is inserted in the middle of side plate, and the side of push plate is threadedly connected with fixed screw rod. The technical scheme has the following disadvantages: 1. the jig needs four-way operation operation locking, so that the jig is not suitable for batch clamping workpiece, and the clamping efficiency is reduced;2. the locked position of different batches of workpieces on the jig main body is difficult to keep consistent, which affects the operation of finish machining;3. fixed screw rod needs to be tightened with fixed hole one by one to fix the pressing block. After workpiece machining, the structure needs to be re-operated in reverse direction by combining motor and manual operation. The structure is complex, the locking action is complicated, and the automatic discharge cannot be realized, so that the automation degree of jig operation is reduced, which affects the machining efficiency.

[0004] In summary: the locking jig has the disadvantages of complicated operation, difficult to quickly and automatically lock and unlock and discharge, low structure connection stability and operation precision, and affects the machining process and efficiency. UTILITY MODEL CONTENTS

[0005] The utility model is to overcome the disadvantages of the prior art, such as complicated operation, difficult to quickly and automatically lock and unlock and discharge, low structure connection stability and operation precision, and affects the machining process and efficiency, and provides a self-locking clamping jig with efficient and fast operation, automatic locking and unlocking and discharging, high structure connection stability and operation precision, and improved machining progress and efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The self-locking clamping jig comprises a base platform, a mounting seat detachably connected to the base platform, a plurality of workpiece positioning grooves arranged in the middle of the upper surface of the mounting seat, a discharging structure movably connected in the workpiece positioning groove, a locking structure movably connected on both sides of the workpiece positioning groove, a discharging driving assembly detachably connected to the discharging structure, a locking driving assembly detachably connected to the locking structure, an air inlet valve mounted on the base platform, the locking driving assembly and the discharging driving assembly being in sealed connection with the air inlet valve, and a synchronization assembly connected to the locking driving assembly.

[0008] The mounting seat is used for placing workpieces, and the mounting seat is connected with the base platform below to improve the placing stability of the mounting seat. The upper surface of the mounting seat is provided with a plurality of workpiece positioning grooves in the middle to enable batch workpieces to be positioned and placed in the grooves. The locking structure is connected on both sides of the positioning groove, and the locking structure is movable through the locking driving assembly on the mounting seat to automatically clamp and lock the workpieces from both sides, so as to facilitate the processing of the workpieces by other equipment, and at the same time, the locking structure is automatically unlocked to cooperate with the discharging structure connected in the workpiece positioning groove. The discharging structure realizes automatic discharging of the workpieces through the discharging driving assembly to realize rapid discharging of the finished workpieces that are not locked. The structure is compactly arranged and smoothly operated. The locking driving assembly and the discharging driving assembly are connected to the air inlet valve to realize driving, and the connection has high sealing performance to realize automatic locking, automatic unlocking of the locking structure and automatic discharging of the discharging structure through the pneumatic mode with high sealing performance, thereby improving the reliability of the operation precision, the operation speed, the service life of the jig and the degree of automation of the operation. The synchronization assembly improves the synchronization in the pneumatic operation, further improves the precision and stability of the operation, and facilitates the processing of batch workpieces to improve the work efficiency. The locking structure and the discharging structure can be flexibly moved on the mounting seat, and the locking driving assembly and the discharging driving assembly are detachably connected to cooperate with the pneumatic self-locking to make the jig structure have high assembly and disassembly smoothness and convenient maintenance and replacement of accessories in the later stage, so as to further ensure the work efficiency, precision and service life. The jig realizes automatic locking and unlocking of batch workpieces and automatic discharging, the structure connection is stable and the air tightness is high to make the operation precision and efficiency high, improve the degree of automation of the operation, the structures are compactly arranged and smoothly operated, the structure is convenient for rapid assembly and disassembly maintenance to prolong the service life of the jig.

[0009] As preferred, the mounting base comprises a mounting body and a side plate, the side plate is detachably connected with the side surface of the mounting body, the side surface of the mounting body is provided with a locking movable slot, the locking driving assembly comprises an air inlet cylinder one, a gas conveying pipe one and a piston piece one, the locking movable slot is provided with an air inlet hole one, one end of the air inlet cylinder one is connected with an air inlet valve, the other end of the air inlet cylinder one is connected with one end of the gas conveying pipe one, the other end of the gas conveying pipe one is connected with the air inlet hole one, the air inlet hole one is arranged on the inner wall of the locking movable slot and is located at one side of the piston piece one, the other side of the piston piece one is provided with a return spring one, one end of the return spring one is connected with the piston piece one, the other end of the return spring one is connected with the slot bottom of the locking movable slot, and the piston piece one is detachably connected with the locking structure. The side surface of the mounting body in the mounting base is provided with a plurality of locking movable slots, the side plate is detachably connected with the side surface of the mounting body to close the locking movable slots, and meanwhile the discharge driving assembly is conveniently put into the mounting and taken out. The air inlet cylinder in the locking driving assembly is used for being connected with the air inlet valve to convey gas, so that the gas is conveyed into the gas conveying pipe one connected with the air inlet hole one, the gas conveying pipe one conveys the gas into the locking movable slot through the air inlet hole one, so as to push the piston piece one in the slot to the other side, so that the locking structure connected with the piston piece one can be synchronously moved, the discharge driving assemblies on both sides are symmetrically arranged with the workpiece positioning groove as the central axis, and then the locking structures on both sides are driven to realize clamping, during which the return spring one is compressed by overcoming the elastic force and to a certain extent, the impact force in clamping is buffered, the workpiece is prevented from being damaged, meanwhile, the piston piece one can be automatically reset under the restoring force when being unlocked, the return spring one realizes the limited distance reset of the piston piece one, the piston piece one is prevented from being reset to cross the air inlet hole one to cause pneumatic driving failure, and then the operation automation and operation precision control are realized. The effects of convenient structure mounting and dismounting maintenance, high operation precision and stability, workpiece protection, high automation degree of action and then improved work efficiency are achieved.

[0010] As preferred, the groove bottom of the locking movable groove and the piston piece one are both provided with a positioning groove one, the groove bottom of the positioning groove one is provided with a guide sliding groove, the guide sliding groove is inserted with a guide rod, the guide rod is connected with the piston piece one and is an integral structure, the guide rod is connected with the positioning groove one of the piston piece one, the end of the reset spring one is connected with the positioning groove one, and the reset spring one is sleeved with the guide rod. The groove bottom of the locking movable groove and the side surface of the piston piece one opposite to the locking movable groove are both provided with the positioning groove one, so as to position and limit the connection position and stability of the reset spring one through the positioning groove one. In addition, the piston piece one is connected with the guide rod, so that the guide rod moves in the guide sliding groove when the piston piece one is subjected to the pneumatic force, thereby ensuring the uniform force movement of the piston piece one, preventing the reset spring one sleeved on the guide rod from being displaced and deformed, and ensuring the uniform force movement of the piston piece one, so that the locking structure can be smoothly and stably clamped. In addition, the guide rod and the piston piece one are an integral structure to strengthen the structural integrity and bearing strength. The effects of improving the structural connection and operation stability, uniform force movement of the structure, improving the structural strength and service life are achieved.

[0011] As preferred, the locking structure includes a connecting rod, a fixed seat, a locking clamp plate and a connecting block, the piston piece one is provided with a connecting screw hole one, the fixed seat is provided with a connecting hole one, one end of the connecting rod is threadedly connected with the connecting screw hole one, the other end of the connecting rod is inserted into the connecting hole one, the connecting rod and the fixed seat are both provided with a connecting screw hole two, the connecting screw hole two is threadedly connected with a connecting screw rod one, the connecting screw rod one is perpendicular to the arrangement direction of the connecting rod, the fixed seat is provided with a connecting slot, one side of the locking clamp plate is arranged opposite to the workpiece positioning groove, the other side of the locking clamp plate is connected with one side of the connecting block, the locking clamp plate and the connecting block are an integral structure, the other side of the connecting block is inserted into the connecting slot, the groove surface of the connecting slot and the connecting block are both provided with a connecting screw hole three, and the connecting screw hole three is threadedly connected with a connecting screw rod two. The connecting rod in the locking structure is threadedly connected with the connecting screw hole one of the piston piece one, so as to facilitate the quick assembly between structures; the other end of the connecting rod is inserted into the fixed seat, so that the fixed seat is connected with the connecting rod through the connecting screw rod one, and then the piston piece one realizes synchronous movement of the locking structure, wherein the connecting direction of the connecting screw rod one and the connecting rod is perpendicular, so that the fixed seat and the connecting rod are vertically and fixedly connected, to prevent the fixed seat from rotating on the connecting rod, thereby realizing the connection stability and strength of the locking structure and preventing the locking clamp plate from being clamped and displaced; the locking clamp plate is arranged on one side of the workpiece positioning groove, the locking clamp plate is connected with the fixed seat through the connecting block, so that the fixed seat drives the locking clamp plate to lock and unlock the workpiece through the driving of the connecting rod, the locking clamp plate and the connecting block are an integral structure to improve the stress strength, and the connecting screw three facilitates the assembly and replacement of the locking clamp plate, so as to maintain the clamping stability of the workpiece with the minimum replacement of accessories. The effects of facilitating the assembly and disassembly and maintenance of the structure, improving the structural connection stability to ensure the clamping precision, and improving the structural strength to ensure the clamping stability are achieved.

[0012] As preferred, the side of the installation body is provided with a discharging movable groove, the discharging driving assembly comprises a gas conveying pipe two, a piston piece two and a push rod, the discharging movable groove is provided with an air inlet cylinder two and an air inlet hole two, one end of the air inlet cylinder two is connected with the air inlet valve, the other end of the air inlet cylinder two is connected with one end of the gas conveying pipe two, the other end of the gas conveying pipe two is connected with the air inlet hole two, the air inlet hole two is arranged on the inner wall of the discharging movable groove and is located at one side of the piston piece two, the other side of the piston piece two is provided with a reset spring two, the discharging movable groove is provided with a positioning groove two, the positioning groove two is provided with a limiting insertion hole, one end of the reset spring two is connected with the piston piece two, the other end of the reset spring two is connected with the positioning groove two, the piston piece two is connected with one end of the push rod, the piston piece two and the push rod are in an integral structure, the other end of the push rod passes through the reset spring two and is inserted into the limiting insertion hole, and the discharging structure is movably connected with the push rod. The side of the installation body in the installation seat is provided with the discharging movable groove, the side plate is detachably connected with the side of the installation body to close the discharging movable groove and facilitate the installation and removal of the discharging driving assembly; the air inlet cylinder two in the discharging driving assembly is used to be connected with the air inlet valve to convey gas, so that the gas is conveyed into the gas conveying pipe two connected with the air inlet hole two, the gas conveying pipe two conveys the gas into the discharging movable groove through the air inlet hole two, so as to push the piston piece two in the groove to the other side, so that the discharging structure connected with the piston piece two can move synchronously, during which the reset spring two is compressed by overcoming the elastic force and to a certain extent, the impact force in clamping is buffered, the workpiece is prevented from being damaged, the piston piece one can be automatically reset under the restoring force when being unlocked, the piston piece two can be automatically reset when being unlocked, the reset spring two resets the piston piece two to a limited distance, the piston piece two is prevented from being reset to cross the air inlet hole two to cause the pneumatic drive to fail, and then the operation automation and operation precision control are realized. The structure is convenient to install and disassemble and maintain, the operation precision and stability are high, the workpiece is protected, the action has a high degree of automation, and the work efficiency is improved.

[0013] As preferred, the lower bottom surface of the mounting body is provided with a mounting groove, the bottom plate is detachably connected to the mounting groove, the discharging structure comprises a linkage plate and a plurality of discharging rods, the discharging rods are provided with clamping grooves, the linkage plate is clamped with the clamping grooves, the side surface of the linkage plate is provided with an ejection inclined groove, the end head of the push rod is a bevel surface with the same inclination as the ejection inclined groove, the push rod is movably connected with the linkage plate through the ejection inclined groove, the linkage plate is slidably connected with the mounting groove through the push rod, the workpiece positioning groove is provided with a communication hole, the inner wall of the mounting groove is provided with a guide slide rail, one end of the discharging rod is inserted into the communication hole, and the other end of the discharging rod is slidably connected with the guide slide rail. The cavity groove is arranged on the lower bottom surface of the mounting body to facilitate the placement of the linkage plate and the discharging rods in the mounting groove through the lower bottom surface, and the bottom plate is detachable to facilitate the removal of the linkage plate and the discharging rods for replacement and maintenance of the parts; the discharging rods are clamped and fixed with the side plates of the linkage plate through the clamping grooves, and the number of the communication holes on the workpiece positioning groove is corresponding to the number of the discharging rods, and the linkage plate is clamped with the discharging rods on both sides, so that the workpieces are pushed out through the balanced force of the two ends of the communication hole of the workpiece positioning groove when the workpieces are ejected, and the discharging is smooth, balanced and stable; the side surface of the linkage plate is provided with an ejection inclined groove arranged in a direction inclined, and the end head of the push rod is a pointed head with the same inclination, so that the push rod advances along the inclined surface and lifts the linkage plate along the mounting groove through the pushing of the piston piece two, and then all the discharging rods are lifted synchronously, so that all the workpieces are lifted synchronously in the workpiece positioning groove, and the synchronization, efficiency and process of discharging are realized; the inner wall of the mounting groove is provided with a guide slide rail connected with the communication hole, and the guide slide rail is a semicircular recess structure, and the discharging rod is a cylindrical column structure, and the guide slide rail communicates with the lower bottom surface of the mounting body, so that the discharging rod can be assembled upward along the guide slide rail when the discharging structure is mounted, and the linkage plate can be moved along the guide slide rail during operation, so that the stress is always kept in the vertical direction, that is, the linkage plate can easily control multiple discharging rods to assist in completing the batch discharging requirement. The parts are easy to assemble and maintain, the structure connection is stable, the stress is reasonable, the operation is convenient, the discharging operation is smooth and efficient, and the effect of high synchronization is achieved.

[0014] As preferred, the side of the mounting body is provided with a fixed groove, the fixed groove is connected with a pressure test table, the pressure test table is connected with the air inlet cylinder three, the synchronous assembly includes a communication pipeline one, a communication pipeline two and a communication pipeline three, the communication pipeline one is connected with the air inlet cylinder one, the communication pipeline two is connected with the air inlet cylinder three, the communication pipeline one and the communication pipeline two are connected, the communication pipeline three connects the communication pipeline one and the communication pipeline two, and the communication pipeline one, the communication pipeline two and the communication pipeline three are connected with each other. The side of the mounting body is assembled with the pressure test table by opening the fixed groove, the communication pipeline one, the communication pipeline two and the communication pipeline three in the synchronous assembly are connected with each other and the air inlet cylinder three of the pressure test table, so that the stress of each piston one is balanced when clamping, the speed is consistent, the clamping action of the workpiece is consistent, the force is uniform and stable, and the workpiece is prevented from being displaced due to uneven stress, etc., so that the workpiece is difficult to be processed in the next step. The operation balance, stability and action accuracy of the self-locking are improved, and the workpiece operation accuracy and stability are improved.

[0015] As preferred, the piston one and the piston two are provided with a limiting groove one and a limiting groove two, the slot opening of the locking movable groove and the discharging movable groove is provided with a limiting groove three, the limiting groove one is sleeved with a sealing element one, the limiting groove two is sleeved with a sealing element two, and the limiting groove three is embedded with a sealing element three. The sealing element one and the sealing element three are O-shaped sealing rings, the sealing element two is a lip-shaped sealing element, the side plate is pressed with the sealing element three, and the sealing element two is arranged between the sealing element one and the sealing element three. The side of the piston one and the piston two is provided with annular recess structure limiting groove one and limiting groove two, so that the sealing element one of the O-shaped sealing ring is stably sleeved on the limiting groove one, the sealing element two of the lip-shaped sealing element is stably sleeved on the limiting groove two, and the sealing element one and the sealing element two are tightly attached to the groove wall surface to maintain high sealing property during air inlet and air outlet, especially the lip-shaped sealing element two makes the air pressure push the recess of the sealing element two again during air inlet, so as to improve the self-locking efficiency. In addition, the limiting groove three is arranged at the slot opening of the locking movable groove and the discharging movable piston groove, the cross-sectional shape of the slot opening is stepped, the sealing element three of the O-shaped sealing ring can be positioned and embedded (partially), and the sealing element three is pressed tightly when the side plate is tightly attached to the mounting body, so that the locking movable groove and the discharging movable piston groove form a completely high-sealing chamber in the cavity on this side, air leakage is prevented to cause partial or complete delay of clamping action or self-locking failure, and high-strength air tightness is ensured while the piston one and the piston two are conveniently assembled and disassembled. The convenience of structure assembly and disassembly is ensured, the use has high-strength air tightness, and the self-locking is smooth, synchronous and efficient.

[0016] As preferred, the base platform comprises a support base and a plurality of placement platforms, one side of the placement platform is connected with the support base, the other end of the placement platform is connected with the mounting seat, the support base is connected with a support plate, the support plate is provided with a mounting base, the mounting base is connected with a pneumatic connection valve, and the pneumatic connection valve is connected with an air inlet valve. A plurality of placement platforms are installed on the support base to install a batch of mounting seats through the placement platforms to realize batch locking of the tooling to the workpiece, the support base is connected with a support plate, the support plate is supported and connected with the pneumatic connection valve through the mounting base, the pneumatic connection valve is connected with a compressor and a control device, so that the pneumatic connection valve can stably convey the pneumatic connection valve and the connected air inlet valve. Reach the effect of improving the operation efficiency and the stability of the structure connection.

[0017] As preferred, the support plate is connected with a telescopic mechanism, a balance plate is arranged between the placement platform and the support plate, the balance plate is provided with a stabilizing hole, a guide hole and a clearance hole, the pneumatic connection valve is inserted into the stabilizing hole, the support plate is connected with a guide rod, the guide rod is inserted into the guide hole, the balance plate is connected with the guide rod, and the telescopic mechanism passes through the clearance hole and is connected with the balance plate. The telescopic mechanism is installed on the middle part of the support plate, the balance plate is used for fixing the other end of the pneumatic connection valve, and the placement platform can be stably moved up and down under the action of the telescopic mechanism through the guide hole, and then the up-down displacement conveying of the workpiece is realized to meet the butt joint needs of the conveying of the workpiece. Reach the effect of improving the stability of each structure connection and enhancing the mobility of the tooling to improve the overall operation efficiency.

[0018] The beneficial effects of the utility model are: realizing automatic locking and unlocking and automatic discharging of the tooling to the batch workpieces; the structure connection is stable and the air tightness is strong to make the operation precision and efficiency high; improving the operation automation degree; the structures are arranged compactly and move smoothly; the structures are convenient for quick assembly, disassembly and maintenance to prolong the service life of the tooling; convenient for installation, disassembly and maintenance of the structure; the operation precision and stability are strong; protecting the workpiece; using has high strength air tightness and guaranteeing self-locking smoothness, synchronization and high efficiency; enhancing the mobility of the tooling to improve the overall operation efficiency. ACCURACY OF DRAWINGS

[0019] Figure 1 It is the explosion map of the utility model;

[0020] Figure 2 It is the explosion map of the mounting seat;

[0021] Figure 3 It is Figure 2 The sectional view of Figure 1 ;

[0022] Figure 4 It is the structure schematic view of the synchronous assembly;

[0023] Figure 5 It is the explosion map of the locking structure;

[0024] Figure 6 is Figure 2 is a sectional view Figure 2 ;

[0025] Figure 7 is a structural diagram of a workpiece positioning groove;

[0026] Figure 8 is a structural diagram of a mounting groove;

[0027] Figure 9 is a structural diagram of a push rod;

[0028] Figure 10 is a structural diagram of an ejection rod and a linkage plate.

[0029] In the figure: 1. base platform, 2. mounting seat, 3. workpiece positioning groove, 4. ejection structure, 5. locking structure, 6. ejection driving assembly, 7. locking driving assembly, 8. air inlet valve, 9. synchronization assembly, 10. mounting body, 11. side plate, 12. locking movable groove, 13. air inlet cylinder 1, 14. air conveying pipe 1, 15. piston 1, 16. air inlet hole 1, 17. return spring 1, 18. positioning groove 1, 19. guide sliding slot, 20. guide rod, 21. connecting rod, 22. fixing seat, 23. locking clamping plate, 24. connecting block, 25. connecting screw hole 1, 26. connecting hole 1, 27. connecting screw 1, 28. connecting slot, 29. connecting screw 2, 30. ejection movable groove, 31. air conveying pipe 2, 32. piston 2, 33. push rod, 34. air inlet cylinder 2, 35. air inlet hole 2, 36. return spring 2, 37. positioning groove 2, 38. limiting insertion hole, 39. mounting groove, 40. bottom plate, 41. linkage plate, 42. ejection rod, 43. clamping groove, 44. ejection inclined slot, 45. communication hole, 46. guide sliding rail, 47. fixing groove, 48. pressure test table, 49. air inlet cylinder 3, 50. communication pipeline 1, 51. communication pipeline 2, 52. communication pipeline 3, 53. limiting groove 1, 54. and limiting groove 2, 55. limiting groove 3, 56. sealing piece 1, 57. sealing piece 2, 58. sealing piece 3, 59. support base, 60. placement platform, 61. mounting base, 62. pneumatic connection valve, 63. telescopic mechanism, 64. stabilizing hole, 65. balancing plate, 66. guide hole, 67. accommodation hole, 68. guide rod. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The following description of at least one example embodiment is merely illustrative in nature and not intended to be limiting of the application or its application or uses. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of the present application.

[0031] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular forms are intended to include the plural forms, unless the context clearly indicates otherwise, and it should be further understood that the terms "comprise" and / or "include" when used in this specification, indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] Unless specifically stated otherwise, the relative arrangements of the components illustrated in these embodiments, the numerical expressions and numerical values set forth in the examples are not meant to limit the scope of the present application. For the purpose of clarity, spatially relative terms such as "upper", "lower", "left", "right", and the like, are used in the description and accompanying drawings to describe the relative position of one element or feature to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation, in addition to the orientations depicted in the figures. For example, if a device is inverted, then the elements or features described as being "below" or "beneath" other elements or features would be oriented "above" or "over" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative terms used herein interpreted accordingly. It will also be understood that the terms "upwardly", "downwardly", "vertical", "horizontal", "left", "right", "front", "back", and the like, are used with respect to the orientation of the device in the drawings and are not intended to limit the device to the orientation as shown in the drawings. The terms "upwardly", "downwardly", "vertical", "horizontal", "left", "right", "front", "back", and the like, are used herein for ease of description to describe the aspects of the example embodiments as shown in the figures. It will be understood that the device can be oriented in other ways as well (rotated 90 degrees or at other orientations) and the spatially relative terms used herein interpreted accordingly. It will be further understood that, because the device is shown in different orientations in the figures, the spatially relative terms used herein can be interpreted differently depending on the orientation of the device on the drawing. For example, if the device in the figures is turned over, one element or feature that is described as being "above" or "over" another element or feature would then be oriented "below" or "under" the other element or feature. Accordingly, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative terms used herein interpreted accordingly. It will be understood that the dimensions of the various parts shown in the figures are not necessarily to scale, and that the figures are intended to be illustrative, and not a limitation of the scope of the application. Techniques, procedures, and equipment known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the disclosure where appropriate. In all examples shown and discussed herein, any specific values should be interpreted as merely illustrative, and not as a limitation. Thus, other examples of the example embodiments can have different values. It should be noted that like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0033] In addition, it should be noted that the use of the terms "first", "second" and the like is merely intended to distinguish between similar objects, and does not have a special meaning, and therefore cannot be understood as a limitation on the scope of protection of the present application.

[0034] Embodiment 1:

[0035] As shown in Figure 1 , 2 , 4, 7, a self-locking clamping jig, comprising a base platform 1, the base platform 1 is detachably connected with a mounting seat 2, the upper surface of the mounting seat 2 is provided with a plurality of workpiece positioning grooves 3, the workpiece positioning grooves 3 are movably connected with a discharging structure 4, the two sides of the workpiece positioning grooves 3 are movably connected with a locking structure 5, the discharging structure 4 is detachably connected with a discharging driving assembly 6, the locking structure 5 is detachably connected with a locking driving assembly 7, the base platform 1 is provided with an air inlet valve 8, the locking driving assembly 7 and the discharging driving assembly 6 are sealingly connected with the air inlet valve 8, and the locking driving assembly 7 is connected with a synchronous assembly 9.

[0036] As shown in Figure 2 , 3 , 4, the mounting seat 2 comprises a mounting body 10 and a side plate 11, the side plate 11 is detachably connected with the side surface of the mounting body 10, the side surface of the mounting body 10 is provided with a locking movable groove 12, the locking driving assembly 7 comprises an air inlet cylinder 13, a gas conveying pipe 14 and a piston 15, the locking movable groove 12 is provided with an air inlet hole 16, one end of the air inlet cylinder 13 is connected with the air inlet valve 8, the other end of the air inlet cylinder 13 is connected with one end of the gas conveying pipe 14, the other end of the gas conveying pipe 14 is connected with the air inlet hole 16, the air inlet hole 16 is formed on the inner wall of the locking movable groove 12 and is located on one side of the piston 15, the other side of the piston 15 is provided with a return spring 17, one end of the return spring 17 is connected with the piston 15, the other end of the return spring 17 is connected with the groove bottom of the locking movable groove 12, and the piston 15 is detachably connected with the locking structure 5.

[0037] As shown in Figure 3 , 6 , the groove bottom of the locking movable groove 12 and the piston 15 are both provided with a positioning groove 18, the groove bottom of the positioning groove 18 is provided with a guide sliding groove 19, the guide sliding groove 19 is inserted with a guide rod 20, the guide rod 20 is connected with the piston 15 and is an integral structure, the guide rod 20 is connected with the positioning groove 18 of the piston 15, the end of the return spring 17 is connected with the positioning groove 18, and the return spring 17 is sleeved with the guide rod 20.

[0038] As shown in Figure 3 , 5As shown in the drawings, the locking structure 5 comprises a connecting rod 21, a fixing seat 22, a locking clamping plate 23 and a connecting block 24, the piston member 15 is provided with a connecting screw hole 25, the fixing seat 22 is provided with a connecting hole 26, one end of the connecting rod 21 is threadedly connected with the connecting screw hole 25, the other end of the connecting rod 21 is inserted into the connecting hole 26, the connecting rod 21 and the fixing seat 22 are both provided with a connecting screw hole 2, the connecting screw hole 2 is threadedly connected with a connecting screw rod 27, the connecting screw rod 27 is perpendicular to the arrangement direction of the connecting rod 21, the fixing seat 22 is provided with a connecting slot 28, one side of the locking clamping plate 23 is arranged opposite to the workpiece positioning groove 3, the other side of the locking clamping plate 23 is connected with one side of the connecting block 24, the locking clamping plate 23 and the connecting block 24 are of an integrated structure, the other side of the connecting block 24 is inserted into the connecting slot 28, the slot surface of the connecting slot 28 and the connecting block 24 are both provided with a connecting screw hole 3, the connecting screw hole 3 is threadedly connected with a connecting screw rod 29.

[0039] As shown in the drawings, Figure 6 , 8 , 9, the side surface of the mounting body 10 is provided with a discharging movable groove 30, the discharging driving assembly 6 comprises a gas conveying pipe 2 31, a piston member 2 32 and a push rod 33, the discharging movable groove 30 is provided with an air inlet cylinder 2 34 and an air inlet hole 2 35, one end of the air inlet cylinder 2 34 is connected with the air inlet valve 8, the other end of the air inlet cylinder 2 34 is connected with one end of the gas conveying pipe 2 31, the other end of the gas conveying pipe 2 31 is connected with the air inlet hole 2 35, the air inlet hole 2 35 is formed on the inner wall of the discharging movable groove 30 and is arranged on one side of the piston member 2 32, the other side of the piston member 2 32 is provided with a return spring 2 36, the discharging movable groove 30 is provided with a positioning groove 2 37, the positioning groove 2 37 is provided with a limiting insertion hole 38, one end of the return spring 2 36 is connected with the piston member 2 32, the other end of the return spring 2 36 is connected with the positioning groove 2 37, the piston member 2 32 is connected with one end of the push rod 33, the piston member 2 32 and the push rod 33 are of an integrated structure, the other end of the push rod 33 is inserted into the limiting insertion hole 38 through the return spring 2 36, and the discharging structure 4 is movably connected with the push rod 33.

[0040] As shown in the drawings, Figure 6 , 8 , 9, 10, the lower bottom surface of the mounting body 10 is provided with a mounting groove 39, the mounting groove 39 is detachably connected with a bottom plate 40, the discharging structure 4 comprises a linkage plate 41 and a plurality of discharging rods 42, the discharging rods 42 are provided with clamping grooves 43, the linkage plate 41 is clamped with the clamping grooves 43, the side surface of the linkage plate 41 is provided with an ejection inclined groove 44, the end head surface of the push rod 33 is in the form of an inclined surface with the same inclination as the ejection inclined groove 44, the push rod 33 is movably connected with the linkage plate 41 through the ejection inclined groove 44, the linkage plate 41 is slidably connected with the mounting groove 39 through the push rod 33, the workpiece positioning groove 3 is provided with a communication hole 45, the inner wall of the mounting groove 39 is provided with a guide sliding rail 46, one end of the discharging rod 42 is inserted into the communication hole 45, and the other end of the discharging rod 42 is slidably connected with the guide sliding rail 46.

[0041] As Figure 4 , 6 shown, the side of the mounting body 10 is provided with a fixed groove 47, the fixed groove 47 is connected with a pressure test table 48, the pressure test table 48 is connected with an air inlet cylinder three 49, the synchronous assembly 9 includes a communication pipeline one 50, a communication pipeline two 51 and a communication pipeline three 52, the communication pipeline one 50 is connected with the air inlet cylinder one 13, the communication pipeline two 51 is connected with the air inlet cylinder three 49, the communication pipeline one 50 and the communication pipeline two 51 are connected, the communication pipeline three 52 connects the communication pipeline one 50 and the communication pipeline two 51, the pipes of the communication pipeline one 50, the communication pipeline two 51 and the communication pipeline three 52 are connected with each other.

[0042] As Figure 3 , 6 shown, the piston piece one 15 and the piston piece two 32 are both provided with a limiting groove one 53 and a limiting groove two 54, the slot of the locking movable groove 12 and the discharging movable groove 30 is provided with a limiting groove three 55, the limiting groove one 53 is sleeved with a sealing piece one 56, the limiting groove two 54 is sleeved with a sealing piece two 57, the limiting groove three 55 is embedded with a sealing piece three 58, the sealing piece one 56 and the sealing piece three 58 are both O-shaped sealing rings, the sealing piece two 57 is a lip-shaped sealing piece, the side plate 11 is pressed with the sealing piece three 58, and the sealing piece two 57 is arranged between the sealing piece one 56 and the sealing piece three 58.

[0043] As Figure 1 shown, the base platform 1 includes a supporting base 59 and a plurality of placing platforms 50, one side of the placing platform 50 is connected with the supporting base 59, the other end of the placing platform 50 is connected with the mounting seat 2, the supporting base 59 is connected with a support plate 60, the support plate 60 is provided with a mounting base 61, the mounting base 61 is connected with a pneumatic connection valve 62, the pneumatic connection valve 62 is connected with the air inlet valve 8. The support plate 60 is connected with a telescopic mechanism 63, a balance plate 65 is arranged between the placing platform 50 and the support plate 60, the balance plate 65 is provided with a stabilizing hole 64, a guide hole 66 and a giving hole 67, the pneumatic connection valve 62 is inserted into the stabilizing hole 64, the support plate 60 is connected with a guide rod 68, the guide rod 68 is inserted into the guide hole 66, the balance plate 65 is connected with the guide rod 68, and the telescopic mechanism 63 is connected with the balance plate 65 through the giving hole 67.

[0044] As Figures 1-10 shown: the side plate 11 and the side of the mounting body 10 are fixedly connected as a whole through bolts, so as to facilitate the device and disassembly structure, and when connected, the sealing piece three 58 is pressed tightly, so as to guarantee the sealing property of the locking movable groove 12 and the discharging movable groove 30.

[0045] The bottom plate 40 is connected and fixed with the mounting body 10 through bolts at the groove bottom of the mounting groove 39, so as to facilitate the installation and replacement of the discharging rod 42.

[0046] The support base 59 is connected with a plurality of support guide rods, the support plate 60 is provided with a insertion hole, the support plate is inserted with the support guide rod through the insertion hole, so that the support plate 60 is placed on the support base 59, and when the mounting seat 2 moves up and down, the support plate 60 moves up and down in a directional manner through the support guide rod, and the operation stability is improved.

[0047] In use: clamping workpieces: the workpieces are placed in the workpiece positioning groove 3, the piston piece 15 is pushed by gas through the air inlet of the pneumatic connection valve 62, and then the connecting rod 21 pushes the locking clamping plate 23 (the fixed seat 22), through the cooperation of each pipeline of the synchronous assembly 9, all workpieces are clamped and locked by the corresponding locking clamping plates 23 at the same time, so that the workpieces are fixed to prevent movement, and work on the workpieces can be started; the workpieces are discharged, the locking clamping plates 23 are loosened and unlocked through the air outlet of the pneumatic connection valve 62, the starting connecting valve 62 of the piston piece 32 is started, the push rod 33 is pushed forward along the ejection inclined groove 44 of the linkage plate 41 by the piston piece 32, and then the linkage plate 41 moves up, the discharge rods 42 clamped on the linkage plate 41 simultaneously eject the workpiece positioning groove 3 to make each workpiece rise, and the workpieces can be quickly discharged, the telescopic mechanism 63 (a pneumatic cylinder is adopted) is started to make the entire placement platform (including the support plate 60) rise, so that the workpieces are further lifted, so as to facilitate further discharge and facilitate butt joint feeding. The jig realizes self-locking clamping of the workpieces and automatic unlocking and discharging.

[0048] The above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the present application.

Claims

1. A self-locking clamping jig, characterized by, Including base platform (1), the base platform (1) is detachably connected with mounting seat (2), the upper surface middle part of mounting seat (2) is equipped with a plurality of workpiece positioning slot (3), the workpiece positioning slot (3) is movably connected with discharge structure (4), the both sides of workpiece positioning slot (3) are movably connected with locking structure (5), discharge structure (4) is detachably connected with discharge drive assembly (6), locking structure (5) is detachably connected with locking drive assembly (7), base platform (1) is installed with inlet valve (8), locking drive assembly (7) and discharge drive assembly (6) are all sealedly connected with inlet valve (8), locking drive assembly (7) is connected with synchronous assembly (9).

2. The self-locking clamp fixture of claim 1, wherein, The mounting seat (2) includes a mounting body (10) and a side plate (11), the side plate (11) is detachably connected with the side of the mounting body (10), the side of the mounting body (10) is provided with a locking movable groove (12), the locking drive assembly (7) includes an air inlet cylinder (13), a gas conveying pipe (14) and a piston (15), the locking movable groove (12) is provided with an air inlet hole (16), one end of the air inlet cylinder (13) is connected with the inlet valve (8), the other end of the air inlet cylinder (13) is connected with one end of the gas conveying pipe (14), the other end of the gas conveying pipe (14) is connected with the air inlet hole (16), the air inlet hole (16) is formed on the inner wall of the locking movable groove (12) and is located on one side of the piston (15), the other side of the piston (15) is provided with a return spring (17), one end of the return spring (17) is connected with the piston (15), the other end of the return spring (17) is connected with the bottom of the locking movable groove (12), the piston (15) is detachably connected with the locking structure (5).

3. The self-locking clamp of claim 2, wherein, The bottom of the locking movable groove (12) and the piston (15) are both provided with a positioning groove (18), the bottom of the positioning groove (18) is provided with a guide sliding groove (19), the guide sliding groove (19) is inserted with a guide rod (20), the guide rod (20) is connected with the piston (15) and is an integral structure, the guide rod (20) is connected with the positioning groove (18) of the piston (15), the end of the return spring (17) is connected with the positioning groove (18), the return spring (17) is sleeved with the guide rod (20).

4. The self-locking clamp of claim 3, wherein, The locking structure (5) comprises a connecting rod (21), a fixing seat (22), a locking clamping plate (23) and a connecting block (24), the piston piece one (15) is provided with a connecting screw hole one (25), the fixing seat (22) is provided with a connecting hole one (26), one end of the connecting rod (21) is threadedly connected with the connecting screw hole one (25), the other end of the connecting rod (21) is inserted with the connecting hole one (26), the connecting rod (21) and the fixing seat (22) are both provided with a connecting screw hole two, the connecting screw hole two is threadedly connected with a connecting screw rod one (27), the connecting screw rod one (27) is perpendicular to the arrangement direction of the connecting rod (21), the fixing seat (22) is provided with a connecting slot (28), one side of the locking clamping plate (23) is arranged opposite to the workpiece positioning groove (3), the other side of the locking clamping plate (23) is connected with one side of the connecting block (24), the locking clamping plate (23) and the connecting block (24) are of an integral structure, the other side of the connecting block (24) is inserted with the connecting slot (28), the slot surface of the connecting slot (28) and the connecting block (24) are both provided with a connecting screw hole three, the connecting screw hole three is threadedly connected with a connecting screw rod two (29).

5. The self-locking clamp of claim 4, wherein, The side surface of the mounting body (10) is provided with a discharging movable groove (30), the discharging driving assembly (6) comprises a gas conveying pipe two (31), a piston piece two (32) and a push rod (33), the discharging movable groove (30) is provided with an air inlet cylinder two (34) and an air inlet hole two (35), one end of the air inlet cylinder two (34) is connected with the air inlet valve (8), the other end of the air inlet cylinder two (34) is connected with one end of the gas conveying pipe two (31), the other end of the gas conveying pipe two (31) is connected with the air inlet hole two (35), the air inlet hole two (35) is arranged on the inner wall of the discharging movable groove (30) and is located at one side of the piston piece two (32), the other side of the piston piece two (32) is provided with a reset spring two (36), the discharging movable groove (30) is provided with a positioning groove two (37), the positioning groove two (37) is provided with a limiting insertion hole (38), one end of the reset spring two (36) is connected with the piston piece two (32), the other end of the reset spring two (36) is connected with the positioning groove two (37), the piston piece two (32) is connected with one end of the push rod (33), the piston piece two (32) and the push rod (33) are of an integral structure, the other end of the push rod (33) is inserted with the limiting insertion hole (38) through the reset spring two (36), and the discharging structure (4) is movably connected with the push rod (33).

6. The self-locking clamp of claim 5, wherein, The lower bottom surface of the mounting body (10) is provided with a mounting groove (39), the mounting groove (39) is detachably connected with a bottom plate (40), the discharging structure (4) comprises a linkage plate (41) and a plurality of discharging rods (42), the discharging rod (42) is provided with a clamping groove (43), the linkage plate (41) is clamped with the clamping groove (43), the side surface of the linkage plate (41) is provided with an ejection chute (44), the end surface of the push rod (33) is a bevel surface with the same inclination as the ejection chute (44), the push rod (33) is movably connected with the linkage plate (41) through the ejection chute (44), the linkage plate (41) is slidably connected with the mounting groove (39) through the push rod (33), the workpiece positioning groove (3) is provided with a communication hole (45), the inner wall of the mounting groove (39) is provided with a guide slide rail (46), one end of the discharging rod (42) is inserted into the communication hole (45), the other end of the discharging rod (42) is slidably connected with the guide slide rail (46).

7. The self-locking clamp of claim 6, wherein, The side surface of the mounting body (10) is provided with a fixing groove (47), the fixing groove (47) is connected with a pressure test table (48), the pressure test table (48) is connected with an air inlet cylinder three (49), the synchronous assembly (9) comprises a communication pipeline one (50), a communication pipeline two (51) and a communication pipeline three (52), the communication pipeline one (50) is connected with the air inlet cylinder one (13), the communication pipeline two (51) is connected with the air inlet cylinder three (49), the communication pipeline one (50) and the communication pipeline two (51) are connected, the communication pipeline three (52) connects the communication pipeline one (50) and the communication pipeline two (51), the communication pipeline one (50), the communication pipeline two (51) and the communication pipeline three (52) are connected with each other in the pipes.

8. The self-locking clamp of claim 7, wherein, The piston one (15) and the piston two (32) are both provided with a limiting groove one (53) and a limiting groove two (54), the slot of the locking movable groove (12) and the discharging movable groove (30) is provided with a limiting groove three (55), the limiting groove one (53) is sleeved with a sealing piece one (56), the limiting groove two (54) is sleeved with a sealing piece two (57), the limiting groove three (55) is embedded with a sealing piece three (58), the sealing piece one (56) and the sealing piece three (58) are both O-shaped sealing rings, the sealing piece two (57) is a lip-shaped sealing piece, the side plate (11) is press-connected with the sealing piece three (58), the sealing piece two (57) is arranged between the sealing piece one (56) and the sealing piece three (58).

9. The self-locking clamp of claim 1, wherein, The base platform (1) comprises a supporting base (59) and a plurality of placing platforms, one side of the placing platform is connected with the supporting base (59), the other end of the placing platform is connected with the mounting seat (2), the supporting base (59) is connected with a support plate (60), the support plate (60) is provided with a mounting base (61), the mounting base (61) is connected with a pneumatic connection valve (62), the pneumatic connection valve (62) is connected with the air inlet valve (8).

10. The self-locking clamp of claim 9, wherein, The support plate (60) is connected with a telescopic mechanism (63), the placing platform and the support plate (60) are provided with a balance plate (65), the balance plate (65) is provided with a stabilizing hole (64), a guide hole (66) and a let hole (67), the pneumatic connection valve (62) is inserted with the stabilizing hole (64), the support plate (60) is connected with a guide rod (68), the guide rod (68) is inserted with the guide hole (66), the balance plate (65) is connected with the guide rod (68), and the telescopic mechanism (63) is connected with the balance plate (65) through the let hole (67).

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