Center positioning and clamping device for thin-walled workpiece

Abstract

The utility model relates to the technical field of thin-wall part positioning equipment, in particular to a thin-wall part center positioning and clamping device. Comprising a fixing part, an extrusion part and a clamping part, the fixing part is used for supporting the extrusion part and the clamping part, the extrusion part is used for extruding the clamping part located in the fixing part, the clamping part is used for clamping a workpiece through movement, the fixing part is a positioning body, the extrusion part comprises a screw and an outer cone, and the outer cone is slidably connected to the inner side of the top end of the positioning body. The inner side of the outer cone is slidably connected with a screw, and the outer side of the bottom end of the screw is in threaded connection with the positioning body. According to the center positioning and clamping device for the thin-walled workpiece, the aims of being light and simple in clamping, small in workpiece deformation, stable and firm in clamping, simple and smooth in operation, capable of improving machining quality and the like are achieved through the design of the clamping device, and therefore the labor intensity of operators is reduced, and the machining efficiency is improved. And the safety of equipment and personnel as well as the drawing size and form and location tolerance of a product are effectively protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to thin -walled part positioning equipment technical field especially thin -walled part center positioning clamping device. BACKGROUND

[0002] Traditional thin -walled part clamping device adopts three -jaw clamping fixed clamping mode, because three -point clamping when the jaw and workpiece contact surface are too small, it is easy to cause workpiece deformation, thereby influence machining accuracy, and traditional tooling and pressing plate cooperation clamping have improved the labor intensity of operator, and sometimes still can be affected by the interference of pressing plate and screw and influence workpiece clamping processing. In order to reduce the labor intensity of operator, exclude workpiece deformation risk, guarantee product quality and progress, protect personnel equipment safety, now thin -walled clamping device is redesigned and improved.

[0003] Therefore, design thin -walled part center positioning clamping device for providing another technical scheme to the above technical problem. CONTENT OF UTILITY MODEL

[0004] In order to solve the above technical problem, the utility model adopts the following technical scheme:

[0005] Thin -walled part center positioning clamping device, including fixed part, extrusion piece and clamping part, the fixed part is used to support extrusion piece and clamping part, the extrusion piece is used to extrude the clamping part located in the fixed part, the clamping part is used to clamp workpiece by moving.

[0006] As a preferred embodiment of the thin -walled part center positioning clamping device provided by the utility model, the fixed part is a positioning body.

[0007] As a preferred embodiment of the thin -walled part center positioning clamping device provided by the utility model, the inside of the outer side of the positioning body is evenly provided with a stepped groove.

[0008] As a preferred embodiment of the thin -walled part center positioning clamping device provided by the utility model, the inside of the top end of the positioning body is provided with an assembly cavity, the cross section of the assembly cavity is inverted T, and the top and bottom of both ends of the assembly cavity are provided with a positioning inclined surface.

[0009] As a preferred embodiment of the thin -walled part center positioning clamping device provided by the utility model, the extrusion piece is a screw and an outer vertebral body, the inside of the top end of the positioning body is slidably connected with the outer vertebral body, the inside of the outer vertebral body is slidably connected with the screw, and the outside of the bottom end of the screw is threadedly connected with the positioning body.

[0010] As a preferred embodiment of the thin -walled part center positioning clamping device provided by the utility model, a flat washer is sleeved with the top of the outer vertebral body on the outside of the screw.

[0011] As a preferred embodiment of the thin-walled part center positioning clamping device provided by this utility model, an extrusion inclined surface is provided on the outer side of the bottom of the outer cone.

[0012] In a preferred embodiment of the thin-walled part center positioning clamping device provided by this utility model, the clamping element is a plurality of steel balls, which are located inside the assembly cavity and at the bottom end of the outer cone.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The thin-walled part center positioning clamping device provided by this utility model is redesigned based on the characteristics of thin-walled part clamping. Through the design of the clamping device, it can achieve the goals of easy and simple clamping, small workpiece deformation, stable and firm clamping, simple and convenient operation, and improved processing quality. This reduces the labor intensity of operators, effectively protects the safety of equipment and personnel, and ensures the dimensions and geometric tolerances of product drawings.

[0015] 2. The thin-walled part center positioning and clamping device of this utility model is simple to operate, convenient and quick to load and unload workpieces, saves time and effort, reduces the workload of operators, thereby improving the quality of product processing, and opens up new ideas and lays the foundation for thin-walled product processing methods. Attached Figure Description

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

[0017] Figure 2 This is a top view of the present invention;

[0018] Figure 3 This is a cross-sectional view of the positioning body of this utility model;

[0019] Figure 4 This is a cross-sectional view of the external vertebral body of this utility model.

[0020] In the diagram: 1. Screw; 2. Flat washer; 3. Steel ball; 4. Positioning body; 5. Outer cone; 6. Assembly cavity; 7. Positioning bevel; 8. Extrusion bevel. Detailed Implementation

[0021] Reference Figures 1-4 The present invention provides a thin-walled part center positioning and clamping device, which includes a fixing member, a pressing member and a clamping member. The fixing member is used to support the pressing member and the clamping member, the pressing member is used to press the clamping member located inside the fixing member, and the clamping member is used to clamp the workpiece by moving.

[0022] The fixing component is a positioning body 4. Stepped grooves are evenly distributed inside the outer side of the positioning body 4, so that the bolt can enter the interior of the stepped grooves and fix the positioning body 4 in the corresponding position. An assembly cavity 6 is provided on the inner side of the top of the positioning body 4. The cross-section of the assembly cavity 6 is inverted T-shaped. Positioning inclined surfaces 7 are provided at the top and bottom of both ends of the assembly cavity 6, so that the steel ball 3 can move inside the assembly cavity 6 and is positioned by the position between the two outer positioning inclined surfaces 7, preventing the steel ball 3 from falling out of the assembly cavity 6 and allowing the steel ball 3 to move inside the assembly cavity 6.

[0023] The extrusion component includes a screw 1 and an outer cone 5. The outer cone 5 is slidably connected to the inner side of the top of the positioning body 4, so that the outer cone 5 can be adjusted and slidably raised and lowered on the inner side of the top of the positioning body 4. The screw 1 is slidably connected to the inner side of the outer cone 5. The outer side of the bottom end of the screw 1 is threadedly connected to the positioning body 4, so that the rotation of the screw 1 can be adjusted in height through the threaded connection with the positioning body 4, and the height of the top of the screw 1 can be raised and lowered, which drives the outer cone 5 to rise and fall on the top of the positioning body 4. A flat washer 2 is sleeved on the outer side of the screw 1 and on the top of the outer cone 5, so that the stability of the screw 1 on the top of the outer cone 5 can be increased by the flat washer 2.

[0024] Preferably, the flat washer 2 is an internal hexagonal head screw with a shoulder.

[0025] Preferably, the outer cone 5 and the positioning body 4 are slidably connected through the assembly cavity 6, so that the outer cone 5 can descend from the inside of the top of the assembly cavity 6 and enter the bottom of the assembly cavity 6 to squeeze the clamping part. The outer side of the bottom of the outer cone 5 is provided with a squeezing slope 8, so that the descent of the outer cone 5 inside the assembly cavity 6 can squeeze the steel ball 3 through the squeezing slope 8.

[0026] The clamping element consists of multiple steel balls 3, which are located inside the assembly cavity 6 and at the bottom of the outer cone 5.

[0027] In this embodiment, the number of steel balls 3 is eight. In other embodiments, the number of steel balls 3 can be multiple, depending on the degree of clamping.

[0028] In this embodiment, the positioning body 4 is made of 38CrSi material, and the outer cone 5 is made of 65Mn material. In other embodiments, the outer circle of the outer cone 5 can be designed individually according to the size of the workpiece.

[0029] The process of using the thin-walled part center positioning clamping device provided by this utility model is as follows: by tightening and loosening the screw 2, the outer cone 5 moves up and down inside the positioning body 4, causing the steel ball 3 to expand and contract to clamp the workpiece. When the screw 2 is tightened downward, the outer cone 5 slides downward. As the diameter of the bottom of the outer cone 5 gradually increases, the steel ball 3 moves outward, thereby clamping the workpiece. When the screw 2 is loosened upward, the force acting on the outer cone 5 is relaxed, and the steel ball 3 is also relaxed, thereby releasing the workpiece.

Claims

1. A center positioning clamping device for thin-walled parts, characterized in that, The utility model relates to a workpiece clamping device, including fixed parts, extrusion parts and clamping parts, the fixed parts are used for supporting extrusion parts and clamping parts, the extrusion parts are used for extruding the clamping parts in the fixed parts inside, and the clamping parts are used for clamping workpiece by moving.

2. The thin-walled part center positioning and clamping device according to claim 1, characterized in that, The fixed parts are positioning bodies (4).

3. The thin-walled part center positioning and clamping device according to claim 2, characterized in that, The inside of the outer side of the positioning body (4) is evenly provided with stepped grooves.

4. The thin-walled part center positioning and clamping device of claim 2, wherein, The inside of the top end of the positioning body (4) is provided with an assembly cavity (6), the cross section of the assembly cavity (6) is inverted T-shaped, and the top and bottom of both ends of the assembly cavity (6) are provided with positioning inclined surfaces (7).

5. The thin-walled part center positioning and clamping device of claim 4, wherein, The extrusion parts are composed of screws (1) and outer vertebral bodies (5), the inside of the top end of the positioning body (4) is slidably connected with the outer vertebral body (5), the inside of the outer vertebral body (5) is slidably connected with the screw (1), and the outside of the bottom end of the screw (1) is threadedly connected with the positioning body (4).

6. The thin-walled part center positioning and clamping device of claim 5, wherein, The outside of the screw (1) and the top of the outer vertebral body (5) are sleeved with flat washers (2).

7. The thin-walled part center positioning and clamping device of claim 5, wherein, The outside of the bottom of the outer vertebral body (5) is provided with extrusion inclined surfaces (8).

8. The thin-walled part center positioning and clamping device of claim 5, wherein, The clamping parts are a plurality of steel balls (3), the steel balls (3) are located in the inside of the assembly cavity (6) and the bottom end of the outer vertebral body (5).

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