Pneumatic inner support clamp

Abstract

The utility model relates to the technical field of tool clamps, in particular to a pneumatic inner supporting clamp. The device comprises a workbench, two ends of the top end of the workbench are fixedly connected with a base through bolts, the top end of the workbench is uniformly provided with dismounting grooves, the top end of the base is fixedly provided with a vertical plate, the top end of the vertical plate is fixedly provided with a bridge plate, two ends of the top end of the bridge plate are fixedly provided with limiting cylinders, and the inner sides of the limiting cylinders are uniformly and slidably connected with expansion sleeves. And air cylinders are assembled at the two ends of the bottom end of the bridge plate correspondingly, and the output ends of the air cylinders penetrate through the bridge plate to be in threaded connection with the screw pins. According to the pneumatic inner supporting clamp, an external air source is conveyed into the air cylinder along the hand sliding valve, the hand pulling valve and the air pipe, the piston of the air cylinder moves to drive the screw pin and the expansion sleeve to move downwards, the expansion sleeve and the limiting barrel extrude, and then the expansion sleeve clamps a workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a pneumatic inner support fixture. Background Art

[0002] A fixture is a device used to fix the object to be processed during the mechanical manufacturing process so that it occupies the correct position for construction or inspection. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process can be called a fixture.

[0003] When using the above technology, we found that the following technical problems exist in the prior art: Under the demand for mass production, the traditional manual clamping efficiency is too low and occupies too much labor, which makes the demand for automatic clamping increasingly greater. For this reason, we designed a pneumatic internal support clamp to provide another technical solution to the above technical problems. Utility Model Content

[0004] Based on this, it is necessary to provide a pneumatic internal support clamp to address the above technical problems. The base, vertical plate and bridge plate are installed on the top of the cylinder block by bolts, so it is easy to disassemble the base, vertical plate and cylinder block. When the air source is provided to the cylinder, the movement of the cylinder piston drives the screw pin and the expansion sleeve to move downward. At this time, the inclined surface on the outside of the expansion sleeve squeezes the expansion sleeve along the inclined surface on the inside of the limit cylinder, and then the expansion sleeve clamps the workpiece.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A pneumatic internal support clamp comprises a workbench, wherein both ends of the top end of the workbench are fixedly connected to a base by bolts, disassembly grooves are evenly distributed on the top end of the workbench, a vertical plate is fixed to the top end of the base, a bridge plate is fixed to the top end of the vertical plate, limiting cylinders are fixed to both ends of the top end of the bridge plate, expansion sleeves are evenly and slidably connected to the inner side of the limiting cylinders, the internal threads of the expansion sleeves are connected to screw pins, and cylinders are assembled at both ends of the bottom end of the bridge plate, and the output end of the cylinder passes through the bridge plate and is threadedly connected to the screw pin.

[0007] As a preferred embodiment of the pneumatic inner support clamp provided by the utility model, the inner side of the limiting cylinder and the outer side of the expansion sleeve are both provided with inclined surfaces, and the two inclined surfaces are pressed and slid against each other.

[0008] As a preferred embodiment of the pneumatic inner support clamp provided by the utility model, a workpiece is slidably connected between a plurality of the expansion sleeves, and anti-slip pads are fixed to one end of the plurality of expansion sleeves close to each other.

[0009] As a preferred embodiment of the pneumatic inner support clamp provided by the utility model, one end of the bridge plate is equipped with a hand sliding valve, and one end of one of the vertical plates is equipped with a hand pulling valve.

[0010] As a preferred embodiment of the pneumatic internal support clamp provided by the utility model, one end of the hand sliding valve is connected to the air source, the other end of the hand sliding valve is fixed to the hand pull valve through an air pipe, and the air outlet of the hand pull valve is fixed to the cylinder through the air pipe.

[0011] As a preferred embodiment of the pneumatic inner support clamp provided by the utility model, disassembly grooves are evenly distributed on the top of the workbench, and cylinder pads are fixed between the top of the cylinder and the bridge plate.

[0012] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0013] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0014] The utility model provides a pneumatic internal support clamp, which is transported to the inside of the cylinder through an external air source along a hand sliding valve, a hand pulling valve and an air pipe. The movement of the cylinder piston drives the screw pin and the expansion sleeve to move downward. At this time, the inclined surface on the outside of the expansion sleeve squeezes the expansion sleeve along the inclined surface on the inside of the limit cylinder, so that the expansion sleeve drives the anti-slip pad to clamp the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model in a top view;

[0018] Figure 3 This is a schematic diagram of the main view structure of the utility model;

[0019] Figure 4 It is a left view structural schematic diagram of the utility model.

[0020] In the figure: 1. base; 2. vertical plate; 3. cylinder pad; 4. expansion sleeve; 5. limit cylinder; 6. workpiece; 7. screw pin; 8. disassembly groove; 9. bridge plate; 10. workbench; 11. hand sliding valve; 12. cylinder; 13. hand pull valve. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] Embodiment 1

[0026] Reference Figure 1-Figure 4 A pneumatic internal support fixture comprises a workbench 10, both ends of the top of the workbench 10 are fixedly connected with a base 1 by bolts, a disassembly groove 8 is evenly arranged on the top of the workbench 10, a vertical plate 2 is fixed on the top of the base 1, a bridge plate 9 is fixed on the top of the vertical plate 2, both ends of the top of the bridge plate 9 are fixed with a limit cylinder 5, the inner side of the limit cylinder 5 is evenly slidably connected with an expansion sleeve 4, the internal thread of the expansion sleeve 4 is connected with a screw pin 7, both ends of the bottom end of the bridge plate 9 are equipped with a cylinder 12, and the output end of the cylinder 12 passes through the bridge plate 9 and is threadedly connected with the screw pin 7;

[0027] The inner side of the limit cylinder 5 and the outer side of the expansion sleeve 4 are both provided with inclined surfaces, and the two inclined surfaces are pressed and slid against each other. A workpiece 6 is slidably connected between several expansion sleeves 4, and anti-slip pads are fixed at the ends of several expansion sleeves 4 that are close to each other;

[0028] When in use, the base 1, the vertical plate 2 and the bridge plate 9 are installed on the top of the cylinder pad block 3 by bolts, so that the base 1, the vertical plate 2 and the cylinder pad block 3 are easy to disassemble. When the air source is provided to the cylinder 12, the piston movement of the cylinder 12 drives the screw pin 7 and the expansion sleeve 4 to move downward. At this time, the inclined surface on the outside of the expansion sleeve 4 squeezes the expansion sleeve 4 along the inclined surface on the inside of the limit cylinder 5, and then the expansion sleeve 4 clamps the workpiece 6;

[0029] A hand-sliding valve 11 is installed at one end of the bridge plate 9, and a hand-pull valve 13 is installed at one end of one of the vertical plates 2. One end of the hand-sliding valve 11 is connected to the air source, and the other end of the hand-sliding valve 11 is fixed to the hand-pull valve 13 through an air pipe, and the air outlet of the hand-pull valve 13 is fixed to the air cylinder 12 through an air pipe;

[0030] The hand-sliding valve 11 is connected to the air source through the external air source, and the hand-sliding valve 11 is used to switch the air supply source, and the air source enters the inside of the hand-pull valve 13 along the hand-sliding valve 11 and the air pipe, and the hand-pull valve 13 controls the amount of air source provided to the cylinder 12, thereby controlling the movement of the cylinder 12;

[0031] A cylinder pad 3 is fixed between the top of the cylinder 12 and the bridge plate 9, and the cylinder pad 3 is used for buffering and shock absorbing effects.

[0032] The use process of the pneumatic inner support clamp provided by the utility model is as follows: when the workpiece 6 needs to be placed inside the expansion sleeve 4 for clamping, the air is respectively delivered to the inside of the cylinder 12 through the external air source along the hand sliding valve 11, the hand pulling valve 13 and the air pipe, and the piston movement of the cylinder 12 drives the screw pin 7 and the expansion sleeve 4 to move downward. At this time, the inclined surface on the outside of the expansion sleeve 4 is pressed along the inclined surface on the inside of the limiting cylinder 5 to squeeze the expansion sleeve 4, so that the expansion sleeve 4 drives the anti-slip pad to clamp the workpiece 6, and the expansion sleeve 4 is conveniently replaced through the screw pin 7;

[0033] The entire gas source is switched on and off by sliding the hand-sliding valve 11, while the hand-pull valve 13 is used to control the amount of gas delivered to the inside of the cylinder 12, thereby controlling the movement of the cylinder 12;

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A pneumatic internal support fixture, characterized in that: The invention comprises a workbench (10), wherein the two ends of the top of the workbench (10) are fixedly connected to a base (1) by bolts, the top of the workbench (10) is evenly provided with disassembly grooves (8), the top of the base (1) is fixed with a vertical plate (2), the top of the vertical plate (2) is fixed with a bridge plate (9), the two ends of the top of the bridge plate (9) are fixed with a limiting cylinder (5), the inner side of the limiting cylinder (5) is evenly slidably connected with an expansion sleeve (4), the internal thread of the expansion sleeve (4) is connected with a screw pin (7), the two ends of the bottom end of the bridge plate (9) are equipped with a cylinder (12), the output end of the cylinder (12) passes through the bridge plate (9) and is threadedly connected with the screw pin (7).

2. A pneumatic internal support fixture according to claim 1, characterized in that: The inner side of the limiting cylinder (5) and the outer side of the expansion sleeve (4) are both provided with inclined surfaces, and the two inclined surfaces are pressed and slid against each other.

3. A pneumatic internal support fixture according to claim 2, characterized in that: A workpiece (6) is slidably connected between the plurality of expansion sleeves (4), and anti-slip pads are fixed to the ends of the plurality of expansion sleeves (4) that are close to each other.

4. A pneumatic internal support fixture according to claim 2, characterized in that: One end of the bridge plate (9) is equipped with a hand sliding valve (11), and one end of one of the vertical plates (2) is equipped with a hand pulling valve (13).

5. A pneumatic internal support fixture according to claim 4, characterized in that: One end of the hand sliding valve (11) is connected to the air source, the other end of the hand sliding valve (11) is fixed to the hand pull valve (13) via an air pipe, and the air outlet of the hand pull valve (13) is fixed to the air cylinder (12) via an air pipe.

6. A pneumatic internal support fixture according to claim 1, characterized in that: The top of the workbench (10) is evenly provided with disassembly grooves (8), and a cylinder heightening block (3) is fixed between the top of the cylinder (12) and the bridge plate (9).

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