CN204183452U - A kind of part holding device - Google Patents

Abstract

A component tightening device, comprising a base, a support rod and a push rod, the base is a cylindrical body with a connecting hole in the center of the upper part, and the lower end of the support rod is inserted into the connecting hole of the base, There is also a compression screw to fix the support rod and the base. The upper end of the support rod is a fork lug structure with a connecting hole, and a pin is hinged on the connecting hole of the fork lug. The ejector rod is a long Screw rod, the push rod is screwed in the threaded hole in the middle part of the pin shaft, and the front end of the push rod is connected with a top block.

Description

A part clamping device

technical field

The application relates to a clamping device used in the production of aircraft parts, and is especially suitable for a rotatable clamping device with any profile and any angle.

Background technique

In the manufacturing process of parts, in order to meet the precision requirements of the parts, it is usually necessary to position and compress the parts through fixtures. The screw support jacking device is a commonly used pressing method in the fixture. Aircraft parts are complex and diverse, and the surfaces that need to be tightened can be divided into flat surfaces, multi-angle flat surfaces, and curved surfaces. For the surface parallel to a certain surface of the fixture, it can be tightened with a general-purpose screw support. However, a special clamping mechanism is required for multi-angle plane and curved surface clamping, so that the clamping surface of the clamping mechanism can fully fit the clamped surface of the part. During the use of this special tightening mechanism, due to the different profiles of each tightening position, the tightening mechanism is different. In this way, for parts with large external dimensions and complex profiles, the jacking mechanism cannot be mass-produced and cannot be used interchangeably, resulting in high production costs. And in the process of parts processing, the position of each clamping mechanism is fixed. If the jacking mechanism is detachable, it is easy to cause confusion and deformation of the parts, which is extremely inconvenient to use and takes a long time to clamp the parts. For parts produced in batches, the disadvantages of the existing special clamping mechanism are poor versatility, low utilization rate, increased processing cost of parts, and reduced production efficiency.

Contents of the invention

The purpose of this application is to provide a component clamping device with good versatility.

A part tightening device, comprising a base, a support rod and a push rod, characterized in that the base is a cylindrical body, the lower end of the base has a fixed handle with external threads, and the upper center of the base has a Connecting hole, there is a threaded pressing hole perpendicular to the wall of the connecting hole on the base, the lower end of the support rod is a connecting handle, and there is an annular pressing groove on the connecting handle, the connecting handle of the supporting rod can be inserted into the base In the connection hole, another compression screw enters the compression groove of the connection handle of the support rod through the compression hole of the base to fix the support rod and the base. The upper end of the support rod is a fork ear structure with a connection hole. A pin shaft is hinged on the connecting hole of the fork ear, the push rod is a long screw rod with external thread, the push rod is screwed in the threaded hole in the middle part of the pin shaft, and the front end of the push rod is connected with a top block.

The beneficial effect of the present application is that: the tightening direction of the ejector rod can be adjusted at any angle, the support rod can rotate at any angle in the horizontal direction relative to the base, and the ejector rod can rotate in the vertical direction relative to the support rod at a tightening angle, greatly Expand the versatility of the jacking parts.

The present application will be further described in detail below in conjunction with the accompanying drawings of the embodiments.

Description of drawings

Figure 1 is a schematic diagram of the structure of the parts clamping device

Figure 2 is a schematic cross-sectional view of the working state of the part clamping device

Description of numbers in the figure: 1 base, 2 support rods, 3 ejector rods, 4 fixed handles, 5 compression screws, 6 fork ears, 7 pin shafts, 8 top blocks, 9 thread compression holes, 10 annular compression grooves, 11 tooling body, 12 parts

Detailed ways

Referring to the accompanying drawings, the part tightening device includes a base 1, a support rod 2 and a push rod 3. The base 1 is a cylindrical body, and the lower end of the base 1 has a fixed handle 4 with external threads. The handle 4 can fix the base on the positioning hole of the tooling body 11 used for assembling the parts 12. The upper center of the base 1 has a connection hole, and the lower end of the support rod is clearance-fitted with the connection hole. The support rod can be positioned relative to the connection hole Rotate in the horizontal direction to adjust the horizontal tightening direction of the ejector rod. In order to fix the relative position of the support rod and the base, there is a threaded pressing hole 9 perpendicular to the wall of the connecting hole on the base. The lower end of the support rod 2 It is a connecting handle, and there is an annular compression groove 10 on the connecting handle, which is used to limit the upper limit displacement of the connecting handle. The connecting handle of the support rod 2 is inserted into the connecting hole of the base 1, and another compression screw 5 passes through the base The threaded pressing hole 9 of 1 enters the annular pressing groove 10 of the connecting handle of the supporting rod, and the supporting rod 2 and the base 1 are fixed; the upper end of the supporting rod 2 is a fork ear 6 with a connecting hole, and a pin shaft 7 is hinged On the connection hole of the fork lug 6, the pin shaft can rotate axially in the connection hole of the fork lug, the push rod 3 is a long screw with external thread, and the push rod 3 is screwed in the threaded hole in the middle of the pin shaft 7 , the front end of the push rod is connected with a top block 8.

The application has the advantages of simple structure, convenient operation, time-saving and labor-saving, flexible jacking, sufficient jacking force, low cost, good versatility, and can be used for jacking of multi-angle planes and large-curvature profiles, so it has good practicability and is easy to popularize application, has great practical value.

Claims (1)

1. a part holding device, containing pedestal, support bar and push rod, it is characterized in that, described pedestal is a cylinder, there is the externally threaded fixed handle of band the lower end of pedestal, the central upper portion of pedestal has connecting hole, pedestal there is one perpendicular to the screw thread hold-down apertures of connecting hole hole wall, the lower end of support bar is connection handle, connection handle there is ring compression groove, the connection handle of support bar can be plugged in the connecting hole of pedestal in gap, a housing screw is separately had to be entered the pressing groove of support bar connection handle by the hold-down apertures of pedestal, support bar and pedestal are fixed, the upper end of support bar is a fork ear structure having connecting hole, there is a hinge on the connecting hole of fork ear, push rod is an externally threaded long bolt of band, push rod is screwed onto in the screwed hole in the middle part of bearing pin, the front end of push rod is connected with jacking block.