Aircraft landing gear piston rod lathe tool structure

Abstract

The utility model provides an aircraft landing gear piston rod lathe tool structure which comprises a supporting rod and a plug, the supporting rod is provided with a first threaded groove, and the first threaded groove is used for being in threaded connection with a piston rod; a locking piece is arranged on the plug, a locking hole is formed in the supporting rod, and the plug is detachably connected with the supporting rod through matching of the locking piece and the locking hole. A binding surface is arranged on the plug, and the binding surface is used for being tightly attached to the piston rod; the supporting rod is used for being installed on a lathe. The piston rod machining center can solve the problems that in the prior art, a vertical machining center, a horizontal machining center and a lathe need to be switched back and forth in the piston rod machining process, a large number of machine tool working hours are occupied, and the machining cost is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to piston rod machining technical field, concretely is a kind of airplane landing gear piston rod lathe frock structure. BACKGROUND

[0002] Airplane landing gear piston rod is one of main force components, and the main processing difficulty is deep hole, not only the length-diameter ratio of hole exceeds 8D, and high accuracy requirement, need to pass through coarse / semi-precision / precision / grinding and so on multiple processes.

[0003] In prior art, the outer circle of the piston rod needs to be processed on vertical machining center or lathe, and then the inner hole of the piston rod needs to be processed on horizontal machining center, for example, the utility model disclosed in announcement number CN217070877U (hereinafter referred to as prior art 1) discloses a landing gear piston rod processing device, which comprises a bottom plate, a clamping ring and a support, the support comprises a shaft portion for being sleeved in the inner cavity of the piston rod and an end portion arranged at one end of the shaft portion, the end portion is attached to the side wall of the clamping ring on the side away from the piston rod, at least two positioning members and a support hole for passing through a tool bar are arranged on the end portion, the positioning members penetrate through the end portion and extend into the clamping ring, the support hole corresponds to the position of the eccentric arc surface inside the piston rod, and the support hole penetrates through the support, and the end of the tool bar extending into the inner part of the piston rod is detachably connected with a processing tool.

[0004] In prior art 1, the piston rod is installed on a boring machine or horizontal numerical control machine tool, and the inner hole of the piston rod is processed by aligning the clamp, but in prior art 1, the piston rod needs to be converted back and forth between vertical machining center, horizontal machining center and lathe during processing, which occupies a large amount of machine tool time and increases processing cost. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of airplane landing gear piston rod lathe frock structure, which can solve the problem of needing to be converted back and forth between vertical machining center, horizontal machining center and lathe during processing of the piston rod in prior art in actual use process, which occupies a large amount of machine tool time and increases processing cost.

[0006] To solve the above technical problems, the technical scheme adopted by the utility model is as follows:

[0007] A kind of airplane landing gear piston rod lathe frock structure, including support rod and plug, first threaded groove is provided on the support rod, and the first threaded groove is used to be connected with piston rod by screw thread;

[0008] The locking piece is arranged on the plug, the locking hole is arranged on the supporting rod, and the plug is detachably connected with the supporting rod through cooperation of the locking piece and the locking hole.

[0009] The supporting rod is arranged on the lathe.

[0010] Preferably, the locking piece is a locking bolt, and the locking hole is a threaded hole for cooperating with the locking bolt.

[0011] Preferably, the locking piece comprises a locking pin, a driving part and a spring, the locking pin is slidingly arranged on the plug, the driving part is threadedly connected with the plug, the driving part is provided with a driving groove for driving the locking pin to move, and the spring is arranged in the locking hole.

[0012] Preferably, a pad block is arranged at an end of the locking pin away from the driving part.

[0013] Preferably, the pad block is threadedly connected with the driving part.

[0014] Preferably, a ball groove is arranged at an end of the locking pin close to the driving part, and a ball is rollingly connected in the ball groove.

[0015] Preferably, a buffer pad is arranged on the abutting surface.

[0016] Compared with the prior art, the plug of the utility model has the following beneficial effects:

[0017] In the utility model, the abutting surface arranged on the plug can increase the contact area of the supporting rod and the piston rod, so that the abutting surface can further improve the supporting and fixing effect of the supporting rod on the piston rod.

[0018] The plug is detachably connected with the supporting rod through cooperation of the locking piece and the locking hole, so that the operator can replace the plug of different shapes and sizes to cooperate with the piston rod of different shapes and sizes required in the actual use process. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as limiting the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.

[0020] Figure 1 It is a use state schematic view of the utility model.

[0021] Figure 2 It is a structural schematic view of the utility model.

[0022] Figure 3 It is a connection relation schematic view of the locking piece and the supporting rod in the utility model.

[0023] Figure 4 It is a utility model Figure 3 The local enlarged view of A in the utility model.

[0024] In the drawings, the component list represented by each sign is as follows:

[0025] 101-supporting rod, 102-plug, 103-locking piece, 104-locking hole, 105-adhesion surface, 106-locking bolt, 107-locking pin, 108-driving part, 109-spring, 110-driving groove, 111-pad block, 112-rolling ball, 113-positioning pin, 114-positioning hole, 115-piston rod, 116-first threaded groove. DETAILED DESCRIPTION

[0026] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the utility model embodiments. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0027] In the description of the utility model embodiments, it is understood that the orientation or position relationship indicated by the terms "length", "vertical", "horizontal", "top", "bottom" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model embodiments and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model embodiments.

[0028] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model embodiments, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0029] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection, and can also be communication; can be directly connected, can also be indirectly connected through an intermediate medium, and can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0030] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0031] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present application. In addition, the embodiments of the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0032] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0033] Referring to Figures 1-3 The embodiment discloses a piston rod machining mechanism for fixing a piston rod 115, in particular to an airplane landing gear piston rod lathe tool structure, which comprises a supporting rod 101 and a plug 102, the supporting rod 101 is provided with a first threaded groove 116, the first threaded groove 116 is used for threaded connection with the piston rod 115;

[0034] The plug 102 is provided with a locking piece 103, the supporting rod 101 is provided with a locking hole 104, the plug 102 is detachably connected with the supporting rod 101 through the cooperation of the locking piece 103 and the locking hole 104; the plug 102 is provided with a close surface 105, and the close surface 105 is used for close contact with the piston rod 115;

[0035] The support rod 101 is used to be installed on the lathe.

[0036] In the embodiment, the lathe is a conventional machining device in the prior art, the support rod 101 is connected with the output end of the lathe, and the support rod 101 rotates with the piston rod 115 under the driving of the lathe during the machining of the piston rod 115 by the lathe. Before the piston rod 115 is fixed, an inner threaded hole for cooperating with the first threaded groove 116 is machined on the piston rod 115 by the lathe, and the diameter of the inner threaded hole is smaller than the diameter of the finished inner hole of the piston rod 115, so that the inner threaded hole does not affect the finished structure of the piston rod 115. The piston rod 115 can be detachably connected with the support rod 101 through cooperation of the inner threaded hole and the first threaded groove 116. After the piston rod 115 is connected with the support rod 101, the abutting surface 105 arranged on the plug 102 can increase the contact area of the support rod 101 and the piston rod 115, so that the abutting surface 105 can further improve the supporting and fixing effect of the support rod 101 on the piston rod 115. The plug 102 is detachably connected with the support rod 101 through cooperation of the locking member 103 and the locking hole 104, so that the operator can replace the plug 102 of different shapes and sizes to cooperate with the piston rod 115 of different shapes and sizes required in the actual use process. After the piston rod 115 is installed on the lathe through the support rod 101, the lathe can machine the outer circle and the inner hole of the piston rod 115, avoiding the problem that the piston rod 115 needs to be converted between the vertical machining center, the horizontal machining center and the lathe during machining in the prior art, occupying a large amount of machine tool time and increasing the machining cost.

[0037] In some embodiments, the locking member 103 is a locking bolt 106, and the locking hole 104 is a threaded hole for cooperating with the locking bolt 106. In the embodiment, the locking bolt 106 and the threaded hole are several, the locking bolt 106 is arranged at equal intervals along the circumferential direction of the plug 102, the threaded hole is arranged at equal intervals along the circumferential direction of the plug 102, and the locking bolt 106 corresponds to the threaded hole one by one. The locking bolt 106 is threadedly connected with the plug 102, and after the locking bolt 106 is rotated to move to the threaded hole and cooperate with the threaded hole, the plug 102 can be installed on the support rod 101.

[0038] In some embodiments, the locking member 103 comprises locking pins 107, a driving portion 108 and a spring 109, the locking pins 107 are slidingly installed on the plug 102, the driving portion 108 is threadedly connected with the plug 102, the driving portion 108 is provided with a driving groove 110 for driving the locking pins 107 to move, and the spring 109 is installed in the locking hole 104. In the embodiment, the locking hole 104 is a through hole; the locking pins 107 are provided in plurality and are equidistantly arranged along the circumference of the plug 102, the through holes are equidistantly arranged along the circumference of the plug 102, the locking pins 107 are transitionally fitted with the through holes, and the locking pins 107 are one-to-one corresponding to the through holes; in the embodiment, the driving portion 108 is rotated to make the driving groove 110 provided on the driving portion 108 contact with the locking pins 107, and then the plurality of locking pins 107 can be simultaneously moved into the corresponding locking holes 104 under the guidance of the driving groove 110 until the driving portion 108 abuts the locking pins 107 in the locking holes 104; during the movement of the locking pins 107 into the locking holes 104, the spring 109 fixedly connected in the locking hole 104 is compressed, and by providing the spring 109, when the driving portion 108 is no longer positioned to the locking pins 107, the locking pins 107 can be ejected from the locking holes 104 under the action of the spring 109; by providing the driving portion 108 and the spring 109, the plug 102 can be quickly disassembled and assembled.

[0039] In some embodiments, the end of the locking pin 107 away from the driving portion 108 is provided with a pad 111. The connection between the pad 111 and the locking pin 107 forms a stepped structure, the end of the spring 109 away from the locking hole 104 is in contact with the stepped structure, and by providing the pad 111, the spring 109 can be prevented from being excessively compressed during the movement of the locking pin 107 into the locking hole 104.

[0040] In some embodiments, the pad 111 is threadedly connected with the driving portion 108. By rotating the pad 111 to adjust the length of the pad 111, the compression amount of the spring 109 and the movement distance of the locking pin 107 can be adjusted according to actual needs.

[0041] In some embodiments, the locking pin 107 is provided with a ball groove near one end of the driving part 108, and a ball 112 is connected in the ball groove by rolling. By providing the ball 112, sliding friction generated between the ball 112 and the driving groove 110 is converted into rolling friction, so that wear occurs between the driving groove 110 and the locking pin 107 after the driving groove 110 drives the locking pin 107 to move.

[0042] In some embodiments, a buffer pad is mounted on the fitting surface 105. The buffer pad is made of rubber material, and by providing the buffer pad, collision and wear between the fitting surface 105 and the piston rod 115 can be avoided.

[0043] In some embodiments, a stepped platform is provided on the support rod 101, the stepped platform is connected with a positioning pin 113, and the plug 102 is provided with a positioning hole 114 matched with the positioning pin 113. When it is required to mount the plug 102 on the support rod 101, the positioning hole 114 is moved to contact the positioning pin 113, and the locking part 103 provided on the plug 102 is correspondingly arranged with the locking hole 104, so that the plug 102 is quickly positioned.

[0044] In some embodiments, the positioning pin 113 is threadedly connected with the support rod 101. By threadedly connecting the positioning pin 113 with the support rod 101, the positioning pin 113 can be conveniently mounted and replaced, and by rotating the positioning pin 113 threadedly connected with the support rod 101, the length of the positioning pin 113 can be adjusted, so that the locking part 103 on the plug 102 is accurately corresponded with the locking hole 104.

[0045] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to the embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including all the changes and modifications falling within the scope of the present application.

[0046] The above description is only the preferred embodiments of the present application and is not intended to limit the present application. It should be pointed out that any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An aircraft landing gear piston rod lathe tooling structure, characterized by: The support rod (101) is provided with a first threaded groove (116) for threadedly connecting with a piston rod (115), and the plug (102) is provided with a locking member (103) and a locking hole (104) for detachably connecting with the support rod (101) through cooperation of the locking member (103) and the locking hole (104). The plug (102) is provided with an abutting surface (105) for closely abutting with the piston rod (115). The support rod (101) is used for being installed on a lathe.

2. An aircraft landing gear piston rod lathe tooling structure according to claim 1, characterized in that: The locking member (103) is a locking bolt (106), and the locking hole (104) is a threaded hole for cooperating with the locking bolt (106).

3. An aircraft landing gear piston rod lathe tooling structure according to claim 1, characterized in that: The locking member (103) comprises a locking pin (107), a driving portion (108) and a spring (109), the locking pin (107) is slidingly installed on the plug (102), the driving portion (108) is threadedly connected with the plug (102), the driving portion (108) is provided with a driving groove (110) for driving the locking pin (107) to move, and the spring (109) is installed in the locking hole (104).

4. An aircraft landing gear piston rod lathe tooling structure according to claim 3, characterized in that: The locking pin (107) is provided with a pad (111) at an end away from the driving portion (108).

5. An aircraft landing gear piston rod lathe tooling structure according to claim 4, characterised in that: The pad (111) is threadedly connected with the driving portion (108).

6. An aircraft landing gear piston rod lathe tooling structure according to claim 5, characterised in that: The locking pin (107) is provided with a ball groove at an end close to the driving portion (108), and a ball (112) is rollingly connected in the ball groove.

7. An aircraft landing gear piston rod lathe tooling structure according to claim 1, characterized in that: The abutting surface (105) is provided with a buffer pad.

Images