Self-locking clamping jig

Abstract

The invention 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 beneficial effects 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 invention relates to the technical field of clamping jigs, and in particular to a self-locking clamping jig. Background Art

[0002] During the processing of the workpiece, relevant jigs are used to clamp, position and lock it. The jig is also a type of mold tool, which is one of the auxiliary tools used to perform a large number of repetitive operations. Automatic locking is one of the commonly used structures in the jig type. By locking the workpiece, the stability of the workpiece during the processing is ensured. Therefore, the stability and precision of the workpiece clamping and the operating efficiency of the jig are crucial.

[0003] China Patent Authorization Announcement Number: CN 216327873 U, Authorization Announcement Date: April 19, 2022. The present invention relates to an automatic locking fixture for metal workpiece processing, including a fixture body, a slide seat is installed on the upper surface of the fixture body, and a movable base is slidably connected to the outer side of the slide seat, a bidirectional screw is arranged inside the slide seat, a push plate is arranged above the movable base, and side plates are installed on both sides of the fixture body, and a mounting rod is inserted in the middle of the side plate, and a fixed screw is threadedly connected to one side of the push plate. The shortcomings of this technical solution are: 1. The jig needs to be locked in four-way operation, which makes the jig unsuitable for batch clamping of workpieces and reduces the clamping efficiency; 2. It is difficult to keep the locked positions of different batches of workpieces on the jig body consistent, which affects the finishing operation; 3. The fixed screw needs to be tightened one by one with the fixed hole to fix the pressing block. After the workpiece is processed, the structure needs to be reversed again by combining motor and manual operation. The structure is complex, the locking action is cumbersome, and the material cannot be automatically discharged, which reduces the degree of automation of the jig operation and affects the processing efficiency.

[0004] In summary: the locking jig has the disadvantages of complicated operation, which makes it difficult to quickly and automatically lock, unlock and discharge materials, low structural connection stability and operation accuracy, and affects the processing progress and efficiency. Summary of the invention

[0005] The present invention aims to overcome the shortcomings of the locking jig in the prior art, such as cumbersome operation, difficulty in quick and automatic locking, unlocking and discharging, low structural connection stability and operating precision, and impact on processing progress and efficiency. The present invention provides a self-locking clamping jig with efficient and fast operation, automatic locking, unlocking and discharging, high structural connection stability and operating precision, and improved processing progress and efficiency.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A self-locking clamping fixture comprises a base platform, the base platform is detachably connected to a mounting seat, a plurality of workpiece positioning grooves are provided in the middle of the upper surface of the mounting seat, a discharge structure is movably connected in the workpiece positioning groove, both sides of the workpiece positioning groove are movably connected to a locking structure, the discharge structure is detachably connected to a discharge drive assembly, the locking structure is detachably connected to a locking drive assembly, an air intake valve is installed on the base platform, the locking drive assembly and the discharge drive assembly are both sealed and connected to the air intake valve, and the locking drive assembly is connected to a synchronization assembly.

[0007] The mounting seat is used to place the workpiece, and a base platform is connected under the mounting seat to improve the placement stability of the mounting seat. A plurality of workpiece positioning grooves are arranged in the middle of the upper surface of the mounting seat so that batches of workpieces can be positioned and placed in the grooves. Locking structures are connected on both sides of the positioning tooling grooves. The locking structures are movable through the locking drive components on the mounting seat, so that the locking structures can automatically clamp and lock the workpieces from both sides to facilitate other equipment to process the workpieces, and automatically unlock and release at the same time to cooperate with the discharging structure connected in the workpiece positioning groove. The discharging structure realizes automatic discharging of the workpiece through the discharging drive components, so that the completed and unlocked workpieces can be quickly unloaded. The structures are compactly arranged and the movements are smooth. Among them, the locking drive assembly and the discharging drive assembly are connected to the air inlet valve to realize the drive, and the connection has high sealing, so as to realize the automatic locking, automatic unlocking and automatic discharging of the locking structure and the discharging structure through the pneumatic method with high sealing, so as to achieve higher reliability of operation precision, fast action speed, improve the service life of the metallurgical tool, and improve the degree of automation of operation; the synchronization assembly improves the synchronization in pneumatic operation, further improves the precision and stability of the action, and is convenient for batch workpiece processing needs to improve the operation efficiency; the locking structure and the discharging structure can be flexibly moved on the mounting seat, and the locking drive assembly and the discharging drive assembly are detachable connections, and the pneumatic self-locking makes the metallurgical tool structure have a high degree of assembly and disassembly fluency and convenient maintenance and replacement of accessories in the later stage, so as to further ensure the operation efficiency, precision and service life. The metallurgical tool can achieve the effect of automatic locking, unlocking and automatic discharging of batch workpieces, stable structural connection and strong airtightness to achieve high operation precision and efficiency, improve the degree of automation of operation, compact arrangement between structures and smooth action, and the structure is convenient for quick assembly and disassembly maintenance to extend the service life of the metallurgical tool.

[0008] Preferably, the mounting seat includes a mounting body and a side plate, the side plate is detachably connected to the side of the mounting body, a locking movable groove is provided on the side of the mounting body, the locking drive assembly includes an air inlet cylinder, an air supply pipe and a piston member, the locking movable groove is provided with an air inlet hole, one end of the air inlet cylinder is connected to the air inlet valve, the other end of the air inlet cylinder is connected to one end of the air supply pipe, the other end of the air supply pipe is connected to the air inlet hole, the air inlet hole is provided on the inner wall of the locking movable groove and is placed on one side of the piston member, the other side of the piston member is provided with a return spring, one end of the return spring is connected to the piston member, the other end of the return spring is connected to the bottom of the locking movable groove, and the piston member is detachably connected to the locking structure. A plurality of locking movable grooves are provided on the side of the mounting body in the mounting seat, and the side plate is detachably connected to the side of the mounting body to close the locking movable groove, and at the same time, it is convenient to put in, install, and remove the discharging drive assembly. The air inlet cylinder in the locking drive assembly is used to connect with the air inlet valve for gas delivery, so that the gas is delivered to the air delivery pipe connected to the air inlet hole. The air delivery pipe delivers the gas to the locking movable groove through the air inlet hole to push the piston member in the groove to the other side, so that the locking structure connected to the piston member can move synchronously. The discharging drive 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 achieve clamping. During this period, the piston member is pushed by the gas to overcome the elastic compression of the reset spring and to a certain extent buffer the impact of the clamping to prevent the workpiece from being damaged. At the same time, when unlocking, the piston member can automatically reset under the restoring force. The reset spring realizes the reset of the piston member within a limited distance to prevent the piston member from crossing the air inlet hole when resetting, resulting in failure of the pneumatic drive, thereby realizing the operation automation and operation precision control. It is easy to install and disassemble the structure, the operation precision and stability are strong, the workpiece is protected, and the action has a high degree of automation, thereby improving the operation efficiency.

[0009] As a preferred embodiment, the bottom of the locking movable groove and the piston member 1 are both provided with a positioning groove 1, the bottom of the positioning groove 1 is provided with a guide slot, the guide slot is plugged with a guide rod, the guide rod is connected to the piston member 1 and is an integrated structure, the guide rod is connected to the positioning groove 1 of the piston member 1, the end of the return spring 1 is connected to the positioning groove 1, and the return spring 1 is sleeved with the guide rod. The bottom of the locking movable groove and the side of the piston member 1 opposite to the locking movable groove are both provided with a positioning groove 1, so as to locate and limit the connection position and stability of the return spring 1 through the positioning groove 1, and the piston member 1 is connected with a guide rod, so that the guide rod moves in the guide slot when the piston member 1 is pneumatically actuated, thereby ensuring that the piston member 1 is uniformly and stably stressed, and at the same time preventing the return spring 1 sleeved on the guide rod from shifting and deforming under stress, ensuring that the reciprocating movement of the piston member 1 is uniformly and smoothly stressed, so that the locking structure can be clamped smoothly and stably, and the guide rod and the piston member 1 are an integrated structure to enhance the structural integrity and bearing strength. The effect of improving structural connection and operational stability, uniform structural force and smooth movement is achieved, and structural strength and service life are improved.

[0010] Preferably, the locking structure includes a connecting rod, a fixed seat, a locking splint and a connecting block, the piston member is provided with a connecting screw hole, the fixed seat is provided with a connecting hole, one end of the connecting rod is threadedly connected to the connecting screw hole, the other end of the connecting rod is plugged into the connecting hole, the connecting rod and the fixed seat are both provided with a connecting screw hole, the connecting screw hole two is threadedly connected to a connecting screw rod one, the connecting screw rod two is perpendicular to the arrangement direction of the connecting rod, the fixed seat is provided with a connecting slot, one side of the locking splint is arranged opposite to the workpiece positioning slot, the other side of the locking splint is connected to one side of the connecting block, the locking splint and the connecting block are an integrated structure, the other side of the connecting block is plugged 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 to a connecting screw rod two. The connecting rod in the locking structure is threadedly connected and fixed with the connecting screw hole of the piston part 1, so as to facilitate the rapid assembly between the structures; the other end of the connecting rod is inserted into the fixing seat so that the fixing seat is connected to the connecting rod through the connecting screw rod 1, and then the piston part 1 realizes the synchronous movement locking structure, wherein the connecting screw rod 1 is perpendicular to the connection direction of the connecting rod, so that the fixing seat and the connecting rod are vertically fixedly connected to prevent the fixing seat from rotating on the connecting rod, thereby realizing the connection stability and strength of the locking structure and preventing the clamping displacement of the locking clamp; the locking clamp is placed on one side of the workpiece positioning groove, and the locking clamp is connected to the fixing seat through the connecting block, so that the fixing seat drives the locking clamp to lock and unlock the workpiece through the drive of the connecting rod, the locking clamp and the connecting block are an integrated structure to improve the force strength, and the connecting screw rod 3 is convenient for the assembly and replacement of the locking clamp, and the clamping stability of the workpiece is maintained with the minimum replacement of accessories. The structure is easy to assemble and disassemble for maintenance, the structural connection stability is strong to ensure the clamping accuracy, and the structural strength is high and the clamping stability is achieved.

[0011] Preferably, a discharging movable groove is provided on the side of the mounting body, and the discharging driving assembly includes two air supply pipes, two piston members and a push rod. The discharging movable groove includes two air inlet cylinders and two air inlet holes. One end of the air inlet cylinder is connected to the air inlet valve, the other end of the air inlet cylinder is connected to one end of the air supply pipe, the other end of the air supply pipe is connected to the two air inlet holes, the two air inlet holes are arranged on the inner wall of the discharging movable groove and are placed on one side of the piston member, the other side of the piston member is provided with two return springs, the discharging movable groove is provided with two positioning grooves, the positioning grooves are provided with a limiting socket, one end of the return spring is connected to the piston member, the other end of the return spring is connected to the positioning groove, the piston member is connected to one end of the push rod, the piston member and the push rod are an integrated structure, the other end of the push rod passes through the return spring and is plugged into the limiting socket, and the discharging structure is movably connected to the push rod. The side of the mounting body in the mounting seat is provided with a discharging movable groove, and the side plate is connected to the side of the mounting body by disassembly to close the discharging movable groove, and at the same time it is convenient to put in, install, disassemble and take out the discharging drive component; the air inlet cylinder 2 in the discharging drive component is used to connect with the air inlet valve for gas delivery, so that the gas is delivered to the air supply pipe 2 connected to the air inlet hole 2, and the air supply pipe 2 delivers the gas to the discharging movable groove through the air inlet hole 2 to push the piston member 2 in the groove to the other side, so that the discharging structure connected to the piston member 2 can move synchronously, during which the gas pushes the piston member 2 so that the return spring 2 is compressed by overcoming the elastic force and to a certain extent buffers the impact force during clamping to prevent the workpiece from being damaged, and at the same time, when unlocking, the piston member 1 can automatically reset under the restoring force, and at the same time, when unlocking, the piston member 2 can automatically reset, and the return spring 2 realizes the limited distance reset of the piston member 2 to prevent the piston member 2 from crossing the air inlet hole 2 when resetting, resulting in failure of the pneumatic drive, thereby realizing operation automation and operation precision control. The effect of facilitating the installation, disassembly and maintenance of the structure, achieving high operating accuracy and stability, protecting the workpiece, and achieving a high degree of automation in the movement, thereby improving operating efficiency, is achieved.

[0012] Preferably, a mounting groove is provided on the lower bottom surface of the mounting body, and the mounting groove is detachably connected to the bottom plate, the discharging structure includes a linkage plate and a plurality of discharging rods, the discharging rod is provided with a clamping groove, the linkage plate is clamped with the clamping groove, an ejection inclined groove is provided on the side of the linkage plate, the end face of the push rod is an inclined surface with the same inclination as the ejection inclined groove, the push rod is movably connected to the linkage plate through the ejection inclined groove, the linkage plate is slidably connected to the mounting groove through the push rod, the workpiece positioning groove is provided with a connecting hole, the inner wall of the mounting groove is provided with a guide slide rail, one end of the discharging rod is plugged into the connecting hole, and the other end of the discharging rod is slidably connected to the guide slide rail. A cavity mounting groove is provided on the lower bottom surface of the mounting body so that the linkage plate with the discharging rod can be conveniently placed into the mounting groove through the lower bottom, and the bottom plate is detachable so as to take out the linkage plate and the discharging rod for replacing and maintaining accessories; the discharging rod is clamped and fixed with the side plate of the linkage plate through the clamping groove, and is provided with a corresponding number of connecting holes on the station positioning groove, and the discharging rods are clamped on both sides of the linkage plate, so that when the workpiece is ejected, the forces extending from the connecting holes of the workpiece positioning groove at the two lower ends are balanced and pushed out together, so that the discharging is smooth, balanced and stable; an ejection inclined groove arranged in an inclined direction is provided on the side surface of the linkage plate, and the end of the push rod is pointed in the shape of a tip with the same inclination, so that the push of the piston member 2 causes the push rod to move along the inclined surface Move forward and lift the linkage plate along the installation groove, and then all the discharging rods are synchronously lifted, so that all workpieces are synchronously lifted in the workpiece positioning groove, so as to achieve synchronization, high efficiency and process of discharging; the inner wall of the installation groove is provided with a guide rail, and the guide rail is connected to the connecting hole. At the same time, the guide rail is a semicircular concave structure, and the discharging rod is a cylindrical columnar structure. The guide rail is connected to the lower bottom surface of the installation body, and then when installing the discharging structure, the discharging rod can be assembled upward along the guide rail. At the same time, it moves along the guide rail during operation and movement to prevent the linkage plate from being cheap, so that the force is always kept vertically up and down, so that the linkage plate can easily control multiple discharging rods to assist in meeting the batch discharging needs. The accessories are easy to assemble and maintain, the structural connection is stable, the force is reasonable and the operation is convenient, and the discharging operation is smooth, efficient and highly synchronous.

[0013] Preferably, a fixing groove is provided on the side of the mounting body, a pressure test gauge is connected to the fixing groove, the pressure test gauge is connected to the air inlet cylinder 3, the synchronization component includes a connecting pipe 1, a connecting pipe 2 and a connecting pipe 3, the connecting pipe 1 is connected to the air inlet cylinder 1, the connecting pipe 2 is connected to the air inlet cylinder 3, the connecting pipe 1 is connected to the connecting pipe 2, the connecting pipe 3 is connected to the connecting pipe 1 and the connecting pipe 2, and the connecting pipe 1, the connecting pipe 2 and the connecting pipe 3 are connected to each other. The side of the mounting body is equipped with a pressure test gauge by providing a fixing groove, the connecting pipe 1, the connecting pipe 2 and the connecting pipe 3 in the synchronization component are connected to the air inlet cylinder 1, and are also connected to the air inlet cylinder 3 of the pressure test gauge, so that the force of each piston member 1 is evenly balanced and the speed is kept consistent during clamping, so that the clamping action of the workpiece is consistent and the force is applied evenly and stably, so as to prevent the workpiece from being displaced due to uneven force, etc., which makes it difficult for the workpiece to be processed with high precision in the next step. The effect of improving the operating balance, stability and action accuracy of the self-locking operation and thus improving the workpiece operation accuracy and stability is achieved.

[0014] Preferably, piston member 1 and piston member 2 are both provided with limiting groove 1 and limiting groove 2, the notches of the locking movable groove and the discharging movable groove are both provided with limiting groove 3, one limiting groove is connected with seal 1, the second limiting groove is connected with seal 2, the third limiting groove is embedded with seal 3, seal 1 and seal 3 are both O-rings, seal 2 is a lip seal, the side plate is crimped with seal 3, and seal 2 is placed between seal 1 and seal 3. The piston member 1 and the piston member 2 are provided with a ring-shaped recessed structure limiting groove 1 and limiting groove 2 on their sides, so that the seal member 1 of the O-ring can be stably sleeved on the limiting groove 1, and the seal member 2 of the lip seal can be stably sleeved on the limiting groove 2. The seal member 1 and the seal member 2 are both tightly attached to the groove wall surface to maintain high sealing performance during the process of air intake and air discharge. In particular, the lip seal member 2 can make the air pressure push the recess of the seal member 2 twice during air intake to improve the self-locking efficiency. In addition, during the locking activity, The slots of the slot and the discharge piston slot are provided with limiting grooves 3, so that the cross-sectional shape of the slot is stepped, so that the seal 3 of the O-ring can be positioned and embedded (partially), and then the seal 3 is pressed tightly when the side plate is in close contact with the mounting body during assembly, so that the locking movable slot and the discharge piston slot form a completely highly sealed chamber in the cavity on this side to prevent leakage from causing partial or complete delay of the clamping action or self-locking failure, thereby ensuring high-strength airtightness while maintaining convenient assembly and disassembly of the piston parts 1 and 2. The effect of ensuring the convenience of structural assembly and disassembly, using high-strength airtightness, and ensuring smooth synchronization and high efficiency of self-locking is achieved.

[0015] Preferably, the base platform includes a supporting base and several placing platforms, one side of the placing platform is connected to the supporting base, the other end of the placing platform is connected to the mounting seat, the supporting base is connected to a support plate, the support plate is provided with a mounting base, the mounting base is connected to a pneumatic connecting valve, and the pneumatic connecting valve is connected to the air intake valve. Several placing platforms are installed on the supporting base, so that batches of mounting seats can be installed through the placing platforms to achieve batch centralized locking of the workpiece by the jig, the supporting bottom plate is connected to a support plate, the support plate is supported and connected to the pneumatic connecting valve through the mounting base, the pneumatic connecting valve is externally connected to a compressor and a control device, so that the pneumatic connecting valve can stably transport pneumatic and the connected air intake valve for transportation. The effect of improving the working efficiency and the stability of the structural connection is achieved.

[0016] Preferably, the support plate is connected with a telescopic mechanism, a balance plate is provided 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 plugged into the stabilizing hole, the support plate is connected with a guide rod, the guide rod is plugged into the guide hole, the balance plate is connected to the guide rod, and the telescopic mechanism is connected to the balance plate through the clearance hole. A telescopic mechanism is installed in the middle of the support plate, the balance plate is used to fix the other end of the pneumatic connection valve, and at the same time, the placement platform can be stably moved up and down by the guide hole under the maneuverability of the telescopic mechanism, thereby realizing the up and down displacement transportation of the workpiece to meet the transportation and docking needs of the workpiece. The effect of improving the connection stability of each structure and enhancing the mobility of the metallurgical tool to improve the overall operating efficiency is achieved.

[0017] The beneficial effects of the present invention are: realizing automatic locking, unlocking and automatic discharging of batch workpieces by the jig; the structural connection is stable and airtight to ensure high operating accuracy and efficiency; improving the degree of operation automation; the structures are compactly arranged and the movements are smooth; the structure is convenient for quick assembly and disassembly and maintenance to extend the service life of the jig; facilitating the installation and disassembly and maintenance of the structure; having high operating accuracy and stability; protecting the workpiece; using high-strength airtightness to ensure smooth synchronization and high efficiency of self-locking; enhancing the maneuverability of the jig to improve the overall operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an exploded view of the present invention; Figure 2 This is an exploded view of the mount; Figure 3 yes Figure 2 Section Figure 1 ; Figure 4 It is a structural diagram of the synchronization component; Figure 5 It is an exploded view of the locking structure; Figure 6 Yes Yes Figure 2 Section Figure 2 ; Figure 7It is a schematic diagram of the structure of the workpiece positioning groove; Figure 8 It is a schematic diagram of the structure of the installation slot; Fig. 9 It is a schematic diagram of the structure of the push rod; Fig.10 It is a structural schematic diagram of the discharge rod and the linkage plate.

[0019] In the figure: 1. Base platform, 2. Mounting seat, 3. Workpiece positioning groove, 4. Discharging structure, 5. Locking structure, 6. Discharging drive assembly, 7. Locking drive assembly, 8. Inlet valve, 9. Synchronous assembly, 10. Mounting body, 11. Side plate, 12. Locking movable groove, 13. Inlet cylinder 1, 14. Air delivery pipe 1, 15. Piston 1, 16. Inlet hole 1, 17. Return spring 1, 18. Positioning groove 1, 19. Guide slide, 20. Guide rod, 21. Connecting rod, 22. Fixed seat, 23. Locking splint, 24. Connecting block, 25. Connecting screw hole 1, 26. Connecting hole 1, 27. Connecting screw 1, 28. Connecting slot, 29. Connecting screw 2, 30. Discharging movable groove, 31. Gas pipe 2, 32. Piston 2, 33. Push rod, 34. Inlet cylinder 2, 35. Inlet hole 2, 36. Reset spring 2, 37. Positioning groove 2, 38. Limiting jack, 39. Mounting groove, 40. Bottom plate, 41. Linkage plate, 42. Discharging rod, 43. Slot, 44. Ejection inclined groove, 45. Connecting hole, 46. Guide rail, 47. Fixed groove, 48. Pressure test gauge, 49. Inlet cylinder 3, 50. Connecting pipe Channel one, 51. Connecting pipe two, 52. Connecting pipe three, 53. Limiting groove one, 54. Limiting groove two, 55. Limiting groove three, 56. Seal one, 57. Seal two, 58. Seal three, 59. Support base, 60. Placement platform, 61. Installation base, 62. Pneumatic connecting valve, 63. Telescopic mechanism, 64. Stabilizing hole, 65. Balance plate, 66. Guide hole, 67. Make way hole, 68. Guide rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] Unless otherwise specified, the relative arrangement of the components, numerical expressions and numerical values ​​described in these embodiments do not limit the scope of the present application. For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" are used in the embodiments to illustrate the relationship between an element or feature shown in the figure and another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or located in other orientations), and the spatial relative description used here can be interpreted accordingly. At the same time, it should be understood that for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, process and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, process and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values.It should be noted that similar reference numerals and letters denote similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0023] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0024] Embodiment 1: like Figure 1 , 2As shown in Figures 4 and 7, a self-locking clamping fixture includes a base platform 1, the base platform 1 is detachably connected with a mounting seat 2, a plurality of workpiece positioning grooves 3 are provided in the middle of the upper surface of the mounting seat 2, a discharge structure 4 is movably connected in the workpiece positioning groove 3, both sides of the workpiece positioning groove 3 are movably connected with a locking structure 5, the discharge structure 4 is detachably connected with a discharge drive assembly 6, the locking structure 5 is detachably connected with a locking drive assembly 7, an air intake valve 8 is installed on the base platform 1, the locking drive assembly 7 and the discharge drive assembly 6 are both sealed and connected to the air intake valve 8, and the locking drive assembly 7 is connected to a synchronization assembly 9.

[0025] like Figure 2 , 3 As shown in , 4, the mounting base 2 includes a mounting body 10 and a side plate 11, the side plate 11 is detachably connected to the side of the mounting body 10, a locking movable groove 12 is provided on the side of the mounting body 10, and the locking drive assembly 7 includes an air intake cylinder 13, an air supply pipe 14 and a piston member 15, the locking movable groove 12 is provided with an air intake hole 16, one end of the air intake cylinder 13 is connected to the air intake valve 8, the other end of the air intake cylinder 13 is connected to one end of the air supply pipe 14, the other end of the air supply pipe 14 is connected to the air intake hole 16, the air intake hole 16 is opened on the inner wall of the locking movable groove 12 and is placed on one side of the piston member 15, a return spring 17 is provided on the other side of the piston member 15, one end of the return spring 17 is connected to the piston member 15, the other end of the return spring 17 is connected to the bottom of the locking movable groove 12, and the piston member 15 is detachably connected to the locking structure 5.

[0026] like Figure 3 , 6 As shown, the bottom of the locking movable groove 12 and the piston member 15 are both provided with a positioning groove 18, the bottom of the positioning groove 18 is provided with a guide groove 19, the guide groove 19 is plugged with a guide rod 20, the guide rod 20 is connected to the piston member 15 and is an integrated structure, the guide rod 20 is connected to the positioning groove 18 of the piston member 15, the end of the return spring 17 is connected to the positioning groove 18, and the return spring 17 is sleeved with the guide rod 20.

[0027] like Figure 3 , 5As shown, the locking structure 5 includes 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 to the connecting screw hole 25, and the other end of the connecting rod 21 is plugged 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 1 27, the connecting screw 29 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 slot 3, the other side of the locking clamping plate 23 is connected to one side of the connecting block 24, the locking clamping plate 23 and the connecting block 24 are an integrated structure, the other side of the connecting block 24 is plugged into the connecting slot 28, the groove surface of the connecting slot 28 and the connecting block 24 are both provided with a connecting screw hole 3, and the connecting screw hole 3 is threadedly connected with a connecting screw 29.

[0028] like Figure 6 , 8 As shown in Figures 9 and 10, a discharging movable groove 30 is provided on the side of the mounting body 10, and the discharging driving assembly 6 includes an air delivery pipe 31, a piston member 32 and a push rod 33. The discharging movable groove 30 is provided with an air inlet cylinder 34 and an air inlet hole 35. One end of the air inlet cylinder 34 is connected to the air inlet valve 8, and the other end of the air inlet cylinder 34 is connected to one end of the air delivery pipe 31, and the other end of the air delivery pipe 31 is connected to the air inlet hole 35. The air inlet hole 35 is opened on the inner wall of the discharging movable groove 30 and is placed on one side of the piston member 32. The piston A return spring 2 36 is provided on the other side of the second part 32, and a positioning groove 2 37 is provided on the discharging movable groove 30. The positioning groove 2 37 is provided with a limiting socket 38. One end of the return spring 2 36 is connected to the second piston part 32, and the other end of the return spring 2 36 is connected to the positioning groove 2 37. The second piston part 32 is connected to one end of the push rod 33. The second piston part 32 and the push rod 33 are an integrated structure. The other end of the push rod 33 passes through the return spring 2 36 and is plugged into the limiting socket 38. The discharging structure 4 is movably connected to the push rod 33.

[0029] like Figure 6 , 8 As shown in Figures 9 and 10, a mounting groove 39 is provided on the lower bottom surface of the mounting body 10, and the mounting groove 39 is detachably connected to a bottom plate 40. The discharging structure 4 includes a linkage plate 41 and a plurality of discharging rods 42. The discharging rod 42 is provided with a clamping groove 43, and the linkage plate 41 is clamped with the clamping groove 43. An ejection inclined groove 44 is provided on the side of the linkage plate 41. The end surface of the push rod 33 is an inclined surface with the same inclination as the ejection inclined groove 44. The push rod 33 is movably connected to the linkage plate 41 through the ejection inclined groove 44, and the linkage plate 41 is slidably connected to the mounting groove 39 through the push rod 33. A connecting hole 45 is provided in the workpiece positioning groove 3, and a guide slide rail 46 is provided on the inner wall of the mounting groove 39. One end of the discharging rod 42 is plugged into the connecting hole 45, and the other end of the discharging rod 42 is slidably connected to the guide slide rail 46.

[0030] like Figure 4 , 6 As shown, a fixing groove 47 is provided on the side of the mounting body 10, the fixing groove 47 is connected to a pressure test gauge 48, the pressure test gauge 48 is connected to an air intake cylinder three 49, the synchronization component 9 includes a connecting pipe one 50, a connecting pipe two 51 and a connecting pipe three 52, the connecting pipe one 50 is connected to the air intake cylinder one 13, the connecting pipe two 51 is connected to the air intake cylinder three 49, the connecting pipe one 50 is connected to the connecting pipe two 51, the connecting pipe three 52 connects the connecting pipe one 50 and the connecting pipe two 51, and the connecting pipe one 50, the connecting pipe two 51 and the connecting pipe three 52 are interconnected.

[0031] like Figure 3 , 6 As shown, piston member 15 and piston member 2 32 are both provided with limiting groove 1 53 and limiting groove 2 54, the notches of the locking movable groove 12 and the discharging movable groove 30 are both provided with limiting groove 3 55, limiting groove 1 53 is sleeved with sealing member 1 56, limiting groove 2 54 is sleeved with sealing member 2 57, limiting groove 3 55 is embedded with sealing member 3 58, sealing member 1 56 and sealing member 3 58 are both O-rings, sealing member 2 57 is a lip seal, the side plate 11 is crimped with sealing member 3 58, and sealing member 2 57 is placed between sealing member 1 56 and sealing member 3 58.

[0032] like Figure 1 As shown, the base platform 1 includes a support base 59 and a plurality of placement platforms 50, one side of the placement platform 50 is connected to the support base 59, and the other end of the placement platform 50 is connected to the mounting seat 2. The support base 59 is connected to a support plate 60, and the support plate 60 is provided with a mounting base 61, and the mounting base 61 is connected to a pneumatic connection valve 62, and the pneumatic connection valve 62 is connected to the air intake valve 8. The support plate 60 is connected to a telescopic mechanism 63, and a balance plate 65 is provided between the placement platform 50 and the support plate 60. The balance plate 65 is provided with a stabilizing hole 64, a guide hole 66 and a clearance hole 67, and the pneumatic connection valve 62 is plugged with the stabilizing hole 64, and the support plate 60 is connected to a guide rod 68, and the guide rod 68 is plugged with the guide hole 66, and the balance plate 65 is connected to the guide rod 68, and the telescopic mechanism 63 passes through the clearance hole 67 and is connected to the balance plate 65.

[0033] like Figure 1-10 As shown: the side plate 11 and the side surface of the mounting body 10 are fixedly connected as a whole by bolts to facilitate the installation and disassembly of the structure. When connected, the sealing member 58 is compressed to ensure the sealing of the locking movable groove 12 and the discharge movable groove 30.

[0034] The bottom plate 40 is connected and fixed to the mounting body 10 at the bottom of the mounting groove 39 by bolt connection, so as to facilitate the installation and replacement of the discharge rod 42.

[0035] The support base 59 is connected to a plurality of support guide rods, and the support plate 60 is provided with a socket, through which the support plate is plugged into the support guide rods so that the support plate 60 is placed on the support base 59. At the same time, when the mounting seat 2 moves up and down, the support plate 60 is moved up and down in a directional manner through the support guide rods, thereby improving operational stability.

[0036] During use: clamping the workpiece: the workpiece is placed in the workpiece positioning groove 3, and the pneumatic connecting valve 62 causes the piston member 15 to be pushed by gas through the intake of air, and then the connecting rod 21 pushes the locking clamp 23 (fixed seat 22), and through the cooperation of the various pipelines of the synchronization component 9, all the workpieces are clamped and locked by the corresponding locking clamps 23 at the same time to fix the workpiece to prevent movement, and then the workpiece can be operated; to discharge the workpiece, the pneumatic connecting valve 62 is used to discharge air to release and unlock each locking clamp 23, and the starting connecting valve 62 of the piston member 2 32 is started, so that the push rod 33 is advanced by the piston member 2 32 along the ejection inclined groove 44 of the linkage plate 41, and then the linkage plate 41 is moved up, and each ejection rod 42 clamped on the linkage plate 41 is ejected from the workpiece positioning groove 3 at the same time to make each workpiece rise, so that the workpiece can be quickly unloaded, and the telescopic mechanism 63 (using a cylinder) is started to raise the entire placement platform (including the support plate 60), so that the workpiece is further lifted, so as to further facilitate unloading and docking and loading. Realize self-locking clamping of the workpiece by the jig as well as automatic unlocking and discharging.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A self-locking clamping fixture, characterized in that: The invention comprises a base platform (1), wherein the base platform (1) is detachably connected to a mounting seat (2), a plurality of workpiece positioning grooves (3) are provided in the middle of the upper surface of the mounting seat (2), a discharge structure (4) is movably connected in the workpiece positioning groove (3), both sides of the workpiece positioning groove (3) are movably connected to locking structures (5), the discharge structure (4) is detachably connected to a discharge drive assembly (6), the locking structure (5) is detachably connected to a locking drive assembly (7), an air intake valve (8) is installed on the base platform (1), the locking drive assembly (7) and the discharge drive assembly (6) are both sealedly connected to the air intake valve (8), and the locking drive assembly (7) is connected to a synchronization assembly (9).

2. A self-locking clamping fixture according to claim 1, characterized in that: The mounting seat (2) comprises a mounting body (10) and a side plate (11), the side plate (11) being detachably connected to the side of the mounting body (10), the side of the mounting body (10) being provided with a locking movable groove (12), the locking drive assembly (7) comprising an air intake cylinder (13), an air delivery pipe (14) and a piston member (15), the locking movable groove (12) being provided with an air intake hole (16), one end of the air intake cylinder (13) being connected to the air intake valve (8), and the other end of the air intake cylinder (13) being connected to the air delivery pipe (14). 4), the other end of the air delivery pipe 1 (14) is connected to an air inlet hole 1 (16), the air inlet hole 1 (16) is formed on the inner wall of the locking movable groove (12) and is disposed on one side of the piston member 1 (15), a return spring 1 (17) is disposed on the other side of the piston member 1 (15), one end of the return spring 1 (17) is connected to the piston member 1 (15), the other end of the return spring 1 (17) is connected to the bottom of the locking movable groove (12), and the piston member 1 (15) is detachably connected to the locking structure (5).

3. A self-locking clamping fixture according to claim 2, characterized in that: The bottom of the locking movable groove (12) and the piston member (15) are both provided with a positioning groove (18), the bottom of the positioning groove (18) is provided with a guide groove (19), a guide rod (20) is inserted into the guide groove (19), the guide rod (20) is connected to the piston member (15) and forms an integrated structure, the guide rod (20) is connected to the positioning groove (18) of the piston member (15), the end of the return spring (17) is connected to the positioning groove (18), and the return spring (17) is sleeved with the guide rod (20).

4. A self-locking clamping fixture according to claim 3, characterized in that: The locking structure (5) comprises a connecting rod (21), a fixing seat (22), a locking clamp (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 to the connecting screw hole (25); the other end of the connecting rod (21) is plugged 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 to a connecting screw rod (27); the connecting screw rod (28) is connected to the connecting screw rod (29); 9) 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 clamp (23) is arranged opposite to the workpiece positioning slot (3), the other side of the locking clamp (23) is connected to one side of the connecting block (24), the locking clamp (23) and the connecting block (24) are an integrated structure, the other side of the connecting block (24) is plugged into the connecting slot (28), the groove surface of the connecting slot (28) and the connecting block (24) are both provided with a connecting screw hole three, and the connecting screw hole three is threadedly connected to a connecting screw rod two (29).

5. A self-locking clamping fixture according to claim 4, characterized in that: The side of the mounting body (10) is provided with a discharge movable groove (30), the discharge drive assembly (6) comprises a second air delivery pipe (31), a second piston member (32) and a push rod (33), the discharge movable groove (30) is provided with a second air inlet cylinder (34) and a second air inlet hole (35), one end of the second air inlet cylinder (34) is connected to the air inlet valve (8), the other end of the second air inlet cylinder (34) is connected to one end of the second air delivery pipe (31), the other end of the second air delivery pipe (31) is connected to the second air inlet hole (35), the second air inlet hole (35) is opened on the inner wall of the discharge movable groove (30) and is placed on one side of the second piston member (32), the second piston member (33) is connected to the second air inlet hole (35), and the second air inlet hole (35) is opened on the inner wall of the discharge movable groove (30) and is placed on one side of the second piston member (32). A second return spring (36) is provided on the other side of the piston member (32), the discharging movable groove (30) is provided with a second positioning groove (37), the second positioning groove (37) is provided with a limiting insertion hole (38), one end of the second return spring (36) is connected to the second piston member (32), the other end of the second return spring (36) is connected to the second positioning groove (37), the second piston member (32) is connected to one end of the push rod (33), the second piston member (32) and the push rod (33) are an integrated structure, the other end of the push rod (33) passes through the second return spring (36) and is plugged into the limiting insertion hole (38), and the discharging structure (4) is movably connected to the push rod (33).

6. A self-locking clamping fixture according to claim 5, characterized in that: The lower bottom surface of the mounting body (10) is provided with a mounting groove (39), and the mounting groove (39) is detachably connected to a bottom plate (40). The discharge structure (4) comprises a linkage plate (41) and a plurality of discharge rods (42), and the discharge rods (42) are 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 inclined groove (44), and the end surface of the push rod (33) is inclined at the same angle as the ejection inclined groove (44). The push rod (33) is movably connected to the linkage plate (41) through the ejection inclined groove (44), the linkage plate (41) is slidably connected to the mounting groove (39) through the push rod (33), the workpiece positioning groove (3) is provided with a connecting hole (45), the inner wall of the mounting groove (39) is provided with a guide rail (46), one end of the discharge rod (42) is plugged into the connecting hole (45), and the other end of the discharge rod (42) is slidably connected to the guide rail (46).

7. A self-locking clamping fixture according to claim 6, characterized in that: A fixing groove (47) is provided on the side of the mounting body (10), the fixing groove (47) is connected to a pressure test gauge (48), the pressure test gauge (48) is connected to an air intake cylinder (49), the synchronization component (9) comprises a connecting pipe (50), a connecting pipe (51) and a connecting pipe (52), the connecting pipe (50) is connected to the air intake cylinder (13), the connecting pipe (51) is connected to the air intake cylinder (49), the connecting pipe (50) is connected to the connecting pipe (51), the connecting pipe (3) (52) is connected to the connecting pipe (50) and the connecting pipe (51), and the connecting pipe (50), the connecting pipe (51) and the connecting pipe (3) (52) are connected to each other.

8. A self-locking clamping fixture according to claim 7, characterized in that: The piston member 1 (15) and the piston member 2 (32) are both provided with a limiting groove 1 (53) and a limiting groove 2 (54); the notches of the locking movable groove (12) and the discharging movable groove (30) are both provided with a limiting groove 3 (55); the limiting groove 1 (53) is sleeved with a sealing member 1 (56); the limiting groove 2 (54) is sleeved with a sealing member 2 (57); the limiting groove 3 (55) is embedded with a sealing member 3 (58); the sealing member 1 (56) and the sealing member 3 (58) are both O-rings; the sealing member 2 (57) is a lip seal; the side plate (11) is crimped with the sealing member 3 (58); the sealing member 2 (57) is disposed between the sealing member 1 (56) and the sealing member 3 (58).

9. The self-locking clamping fixture according to claim 1 is characterized in that: The base platform (1) comprises a support base (59) and a plurality of placement platforms, one side of the placement platform is connected to the support base (59), and the other end of the placement platform is connected to the mounting seat (2), the support base (59) is connected to a support plate (60), the support plate (60) is provided with a mounting base (61), the mounting base (61) is connected to a pneumatic connection valve (62), and the pneumatic connection valve (62) is connected to an air intake valve (8).

10. A self-locking clamping fixture according to claim 9, characterized in that: The support plate (60) is connected to a telescopic mechanism (63); a balance plate (65) is provided between the placement platform and the support plate (60); the balance plate (65) is provided with a stabilizing hole (64), a guide hole (66) and a clearance hole (67); the pneumatic connection valve (62) is plugged into the stabilizing hole (64); the support plate (60) is connected to a guide rod (68); the guide rod (68) is plugged into the guide hole (66); the balance plate (65) is connected to the guide rod (68); and the telescopic mechanism (63) is connected to the balance plate (65) through the clearance hole (67).

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