An internal support fixture based on an airbag module

Abstract

The present invention relates to the technical field of mechanical fixtures, and specifically relates to an internal support fixture based on an airbag module, which includes a connecting guide post, a threaded post, and a clamping device. The threaded post is fixedly connected to the surface of the connecting guide post, and an assembly post is fixedly connected to the surface of the threaded post. The clamping device is arranged on the surface of the assembly post. The clamping device includes a triangular air distribution block, which is fixedly connected to the surface of the assembly post. An installation base is fixedly connected to the surface of the triangular air distribution block. An air vent screw pipe is inserted into the inner wall of the installation base. A threaded groove is formed on the surface of the installation base. A limit nut is threadedly connected to the surface of the installation base at the threaded groove. An inner core is clamped in the inner wall of the installation base, and a protective airbag is fixedly connected to the inner wall of the installation base. In the present invention, by setting the clamping device, the clamping performance of the fixture is improved, thereby reducing the probability of the workpiece falling off the fixture, and further improving the stability of the fixture during the clamping process.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical fixtures, and particularly to an internal support fixture based on an airbag module. Background Art

[0002] During the process of handling workpieces and other items, it is often necessary to rely on an internal support fixture to ensure the smooth handling of workpieces. Operators stand on the operating internal support fixture to carry out the handling operation on the workpieces.

[0003] In the prior art, most of the internal support airbag fixtures use a single airbag to inflate and deflate to clamp and handle workpieces. When handling a relatively long tubular workpiece, due to too few contact points between the longitudinal airbag and the workpiece, there are disadvantages such as unstable centering and small load-bearing capacity, resulting in low reciprocating positioning accuracy of the fixture during the handling process.

[0004] In order to solve the problem of too little contact area between the airbag and the workpiece, the prior art is to increase the area of the airbag for treatment. However, the contact part between a single airbag and the workpiece is prone to cause the workpiece to shake in the gap, and it is impossible to effectively enhance the contact part between the internal support fixture and the workpiece, resulting in the problem of low clamping effect of the internal support fixture. Summary of the Invention

[0005] The purpose of the present invention is to solve the disadvantage of low clamping effect of the internal support fixture in the prior art, and to propose an internal support fixture based on an airbag module.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: An internal support fixture based on an airbag module, including a connecting guide post, a threaded post, and a clamping device. The threaded post is fixedly connected to the surface of the connecting guide post. An assembly post is fixedly connected to the surface of the threaded post. The clamping device is arranged on the surface of the assembly post. The clamping device includes a triangular air distribution block. The triangular air distribution block is fixedly connected to the surface of the assembly post. An installation base is fixedly connected to the surface of the triangular air distribution block. An air vent screw tube is inserted into the inner wall of the installation base.

[0007] Preferably, a threaded groove is formed on the surface of the installation base. A limit nut is threadedly connected to the surface of the installation base at the threaded groove. An inner core is clamped in the inner wall of the installation base. A protective airbag is fixedly connected to the inner wall of the installation base. An O-ring abuts against the inner wall of the installation base. The installation base is provided to fix the position of the protective airbag.

[0008] Preferably, a vent hole is formed on the surface of the triangular air distribution block. The assembly post is communicated with the inner wall of the vent hole. The air vent screw tube is fixedly connected to the inner wall of the vent hole. The air vent screw tube is communicated with the vent hole. The triangular air distribution block is provided to evenly distribute gas to the inner core.

[0009] Preferably, the limiting nut abuts against the surface of the inner core, the limiting nut abuts against the inner wall of the protective airbag, the inner core communicates with the ventilation screw pipe, the protective airbag abuts against the surface of the inner core, and the O-ring abuts against the surface of the triangular air distribution block. The limiting nut is provided to restrict the position of the mounting base through the limiting nut.

[0010] Preferably, a restraining device is provided on the surface of the connecting guide post. The restraining device includes a support frame, the support frame is fixedly connected to the surface of the restraining device, a rotating shaft is fixedly connected to the surface of the support frame, and a connecting frame is hinged to the surface of the rotating shaft. The support frame is provided to limit the rotation axis of the connecting frame through the cooperation of the support frame and the rotating shaft.

[0011] Preferably, a buckling frame is fixedly connected to the surface of the connecting frame, a guiding hole is formed in the surface of the support frame, a limiting block is slidably connected to the inner wall of the guiding hole where the support frame is located, and a return spring is fixedly connected to the surface of the limiting block. The return spring is provided to restrict the position of the limiting block through the return spring.

[0012] Preferably, the number of the rotating shafts is two, the two rotating shafts are symmetrically arranged left and right with respect to the support frame, the connecting frame abuts against the surface of the support frame, the limiting block penetrates through the guiding hole, a jack is formed in the surface of the connecting frame, the limiting block is inserted into the inner wall of the jack, and the return spring is fixedly connected to the inner wall of the guiding hole. The limiting block is provided to limit the position of the connecting frame through the cooperation of the limiting block and the return spring.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0014] In the present invention, when clamping a workpiece through the clamping device, the connecting component guides the gas extracted by the external device into the clamping device. The clamping device unfolds under the injection of gas and clamps the workpiece. When gas is distributed, the gas enters the triangular gas distribution block, and the triangular gas distribution block evenly guides the gas to the ventilation screw pipe. The ventilation screw pipe guides the gas to the inner core, and the inner core unfolds outward under the injection of gas. The inner core presses the protective airbag, and the protective airbag unfolds inside the workpiece, and then the workpiece can be clamped. By providing the clamping device, the clamping performance of the fixture is improved, thereby reducing the probability of the workpiece falling off the fixture and further improving the stability of the fixture during the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of an inner support fixture based on an airbag module proposed by the present invention;

[0016] Figure 2The present invention provides a schematic upward view structure of an inner support fixture based on an airbag module;

[0017] Figure 3 The present invention provides a schematic structure diagram of a clamping device of an inner support fixture based on an airbag module;

[0018] Figure 4 The present invention provides an inner support fixture based on an airbag module Figure 3 The schematic structure diagram of the structure at position A in;

[0019] Figure 5 The present invention provides a schematic structure diagram of a restraint device of an inner support fixture based on an airbag module.

[0020] Legend:

[0021] 1. Connecting guide post; 2. Threaded post; 3. Assembly post; 4. Clamping device; 41. Triangular air distribution block; 42. Installation base; 43. Ventilation screw pipe; 44. Limit nut; 45. Inner core; 46. Protective airbag; 47. O-ring; 5. Restraint device; 51. Support frame; 52. Rotating shaft; 53. Connecting frame; 54. Buckle frame; 55. Limit block; 56. Return spring. Detailed implementation mode

[0022] Please refer to Figures 1-5 , the present invention provides a technical solution: an inner support fixture based on an airbag module, including a connecting guide post 1, a threaded post 2 and a clamping device 4. The threaded post 2 is fixedly connected to the surface of the connecting guide post 1, an assembly post 3 is fixedly connected to the surface of the threaded post 2, the clamping device 4 is arranged on the surface of the assembly post 3, and a restraint device 5 is arranged on the surface of the connecting guide post 1.

[0023] Next, the specific settings and functions of its clamping device 4 and restraint device 5 will be specifically described.

[0024] In this implementation scheme: the clamping device 4 includes a triangular air distribution block 41. The triangular air distribution block 41 is fixedly connected to the surface of the assembly post 3, an installation base 42 is fixedly connected to the surface of the triangular air distribution block 41, and a ventilation screw pipe 43 is inserted into the inner wall of the installation base 42.

[0025] Specifically, a threaded groove is formed on the surface of the installation base 42, a limit nut 44 is threadedly connected to the surface of the installation base 42 located in the threaded groove, an inner core 45 is clamped in the inner wall of the installation base 42, a protective airbag 46 is fixedly connected to the inner wall of the installation base 42, and an O-ring 47 is abutted against the inner wall of the installation base 42. The installation base 42 is provided to fix the position of the protective airbag 46 through the installation base 42.

[0026] Specifically, air guide holes are provided on the surface of the triangular air distribution block 41. The assembly column 3 communicates with the inner wall of the air guide hole, and the ventilation screw pipe 43 is fixedly connected to the inner wall of the air guide hole. The ventilation screw pipe 43 communicates with the air guide hole.

[0027] In this embodiment: The triangular air distribution block 41 is provided, and the gas can be evenly distributed to the inner core 45 through the triangular air distribution block 41.

[0028] Specifically, the limit nut 44 abuts against the surface of the inner core 45, the limit nut 44 abuts against the inner wall of the protective airbag 46. The inner core 45 communicates with the ventilation screw pipe 43, the protective airbag 46 abuts against the surface of the inner core 45, and the O-ring 47 abuts against the surface of the triangular air distribution block 41. The limit nut 44 is provided, and the position of the mounting base 42 can be restricted through the limit nut 44.

[0029] In this embodiment: The constraint device 5 includes a support frame 51, the support frame 51 is fixedly connected to the surface of the constraint device 5, a rotating shaft 52 is fixedly connected to the surface of the support frame 51, and a connecting frame 53 is hinged to the surface of the rotating shaft 52.

[0030] In this embodiment: The support frame 51 is provided, and the rotation axis 52 center of the connecting frame 53 can be restricted through the cooperation of the support frame 51 and the rotating shaft 52.

[0031] Specifically, a fastening frame 54 is fixedly connected to the surface of the connecting frame 53, a guiding hole is provided on the surface of the support frame 51, a limit block 55 is slidably connected to the inner wall of the guiding hole where the support frame 51 is located, and a return spring 56 is fixedly connected to the surface of the limit block 55. The return spring 56 is provided, and the position of the limit block 55 can be restricted through the return spring 56.

[0032] Specifically, the number of the rotating shafts 52 is two, the two rotating shafts 52 are symmetrically arranged about the support frame 51, the connecting frame 53 abuts against the surface of the support frame 51, the limit block 55 penetrates through the guiding hole, a jack is provided on the surface of the connecting frame 53, the limit block 55 is inserted into the inner wall of the jack, and the return spring 56 is fixedly connected to the inner wall of the guiding hole.

[0033] In this embodiment: The limit block 55 is provided, and the position of the connecting frame 53 can be restricted through the cooperation of the limit block 55 and the return spring 56.

[0034] Working principle: When clamping a workpiece, the connecting component guides the gas extracted by an external device into the clamping device 4. The clamping device 4 unfolds under the injection of gas and clamps the workpiece. When distributing the gas, the gas enters the triangular gas distributor block 41. The triangular gas distributor block 41 evenly guides the gas to the ventilation screw tube 43. The ventilation screw tube 43 guides the gas to the inner core 45. The inner core 45 unfolds outward under the injection of gas. The inner core 45 presses the protective airbag 46. The protective airbag 46 unfolds inside the workpiece, and then the workpiece can be clamped. By setting the clamping device 4, the clamping performance of the fixture is improved, thereby reducing the probability of the workpiece falling off the fixture and further improving the stability of the fixture during the clamping process. Additionally, a constraint device 5 is provided. After completing the assembly of the external catheter, press the two-sided limit blocks 55. The limit blocks 55 compress the return spring 56. The return spring 56 is compressed and deformed. The limit blocks 55 lose the constraint of the return spring 56 and displace, pushing the connecting frame 53. The connecting frame 53 drives the buckling frame 54. The buckling frame 54 buckles to the surface of the external catheter. At the same time, release the limit blocks 55. The return spring 56 rebounds without the pressure of the limit blocks 55. The limit blocks 55 are pushed back and inserted into the jacks, and the position of the connecting frame 53 is fixed. Then the constraint operation of the external catheter is completed. By setting the constraint device 5, the connection between the fixture and the external catheter is improved, thereby reducing the probability of the external catheter loosening and further improving the firmness of the connection part between the fixture and the external catheter.

Claims

1. An internal support fixture based on an airbag module, comprising a connecting guide post (1), a threaded post (2) and a clamping device (4). It is characterized in that: The threaded post (2) is fixedly connected to the surface of the connecting guide post (1). An assembly post (3) is fixedly connected to the surface of the threaded post (2). The clamping device (4) is arranged on the surface of the assembly post (3). The clamping device (4) includes a triangular air distribution block (41). The triangular air distribution block (41) is fixedly connected to the surface of the assembly post (3). An installation base (42) is fixedly connected to the surface of the triangular air distribution block (41). An air vent screw pipe (43) is inserted into the inner wall of the installation base (42). A vent hole is formed on the surface of the triangular air distribution block (41). The assembly post (3) is communicated with the inner wall of the vent hole. The air vent screw pipe (43) is fixedly connected to the inner wall of the vent hole. The air vent screw pipe (43) is communicated with the vent hole. A restraint device (5) is arranged on the surface of the connecting guide post (1). The restraint device (5) includes a support frame (51). The support frame (51) is fixedly connected to the surface of the connecting guide post (1). A rotating shaft (52) is fixedly connected to the surface of the support frame (51). A connecting frame (53) is hinged to the surface of the rotating shaft (52). A buckle frame (54) is fixedly connected to the surface of the connecting frame (53). A guiding hole is formed on the surface of the support frame (51). A limiting block (55) is slidably connected to the inner wall of the guiding hole where the support frame (51) is located. A return spring (56) is fixedly connected to the surface of the limiting block (55). The number of the rotating shafts (52) is two. The two rotating shafts (52) are symmetrically arranged about the support frame (51). The connecting frame (53) abuts against the surface of the support frame (51). The limiting block (55) penetrates through the guiding hole. A jack is formed on the surface of the connecting frame (53). The limiting block (55) is inserted into the inner wall of the jack. The return spring (56) is fixedly connected to the inner wall of the guiding hole. A threaded groove is formed on the surface of the installation base (42). A limiting nut (44) is threadedly connected to the surface of the threaded groove of the installation base (42). An inner core (45) is clamped to the inner wall of the installation base (42). A protective airbag (46) is fixedly connected to the inner wall of the installation base (42). An O-ring (47) abuts against the surface of the triangular air distribution block (41).

2. The internal support fixture based on an airbag module according to claim 1, It is characterized in that: The limiting nut (44) abuts against the surface of the inner core (45). The limiting nut (44) abuts against the inner wall of the protective airbag (46). The inner core (45) is communicated with the air vent screw pipe (43). The protective airbag (46) abuts against the surface of the inner core (45). The O-ring (47) abuts against the surface of the triangular air distribution block (41).

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