Special-shaped part machining tooling

Abstract

The utility model provides a kind of special-shaped part machining tool, including stand and adjustable pressing plate, the outer circumferential surface of stand is equipped with vertical clamping surface, the pressing plate is set in the position close to the clamping surface, and the clamping surface and the pressing plate form clamping space between it.The utility model passes through the accurate cooperation of tooling, effectively avoids the problem of loose connection when processing, greatly improves the stability of processing, strictly restricts the position of part, reduces the deviation of key dimension, meets the position degree and profile degree requirement of existing special-shaped part processing.

Description

Technical Field

[0001] This utility model relates to the field of parts processing technology, and in particular to a tooling for processing irregularly shaped parts. Background Technology

[0002] Aircraft landing gear support components are irregularly shaped parts with non-standard shapes and complex structures. Current methods for machining these irregularly shaped parts typically use conventional clamping methods such as vises and three-jaw chucks on CNC machine tools. However, these methods are prone to loosening during three-axis machining, making it difficult to guarantee the positional tolerances of the parts. Furthermore, direct clamping and positioning are difficult to achieve during five-axis machining, affecting the assembly accuracy and overall stability of the tooling and parts, and failing to meet the positional and contour requirements for machining these irregularly shaped parts. Utility Model Content

[0003] The purpose of this utility model is to provide a tooling for machining irregularly shaped parts to solve the above-mentioned technical problems.

[0004] This utility model provides a tooling for processing irregularly shaped parts, including a column and an adjustable pressure plate. The outer circumferential surface of the column is provided with a vertical clamping surface, and the pressure plate is arranged near the clamping surface, forming a clamping space between the clamping surface and the pressure plate.

[0005] Furthermore, the column is mounted on the base.

[0006] Furthermore, the pressure plate includes an integrally formed body and clamping claws, with the clamping claws located above the body.

[0007] Furthermore, a mating groove for placing irregularly shaped parts ribs is provided between adjacent clamping claws.

[0008] Furthermore, a positioning bolt is rotatably mounted on the pressure plate, and a positioning hole corresponding to the positioning bolt is provided on the column.

[0009] Furthermore, a cylinder is installed on the column at a position away from the pressure plate, and the piston rod of the cylinder is connected to the pressure plate and drives the pressure plate to move in a direction perpendicular to the clamping surface.

[0010] Furthermore, the piston rod of the cylinder passes through the column and is connected to the pressure plate.

[0011] Furthermore, the pressure plate is equipped with height-adjustable extension claws.

[0012] Furthermore, the extended claw is mounted on the clamping claw.

[0013] Furthermore, the extension claw is provided with an oblong hole along the height direction, and the clamping claw is provided with a threaded hole corresponding to the oblong hole. The oblong hole and the threaded hole are connected by a locking bolt.

[0014] This utility model effectively avoids the problem of loose connections during processing through precise tooling, greatly improves processing stability, strictly constrains the position of parts, reduces critical dimension deviations, and meets the positional and contour requirements of existing irregular-shaped parts processing. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a front view of Embodiment 1 of the present invention;

[0017] Figure 2 This is a side view of Embodiment 1 of the present invention;

[0018] Figure 3 This is a front view of the clamping mechanism in Embodiment 1 of this utility model;

[0019] Figure 4 This is a clamping side view of Embodiment 1 of the present invention;

[0020] Figure 5 This is a front view of the mounting extension claw of Embodiment 1 of this utility model;

[0021] Figure 6 This is a side view of the mounting extension claw in Embodiment 1 of this utility model;

[0022] Figure 7 This is a front view of Embodiment 2 of the present invention;

[0023] Figure 8 This is a front view of Embodiment 3 of the present invention;

[0024] Figure 9 This is a schematic diagram of the motion of Embodiment 3 of this utility model;

[0025] Explanation of reference numerals in the attached figures:

[0026] In the diagram: 1-Column, 2-Pressure plate, 3-Clamping surface, 4-Base, 5-Body, 6-Clamping claw, 7-Matching groove, 8-Positioning bolt, 9-Irregular part, 10-Extension claw, 11-Oval hole, 12-Locking bolt, 13-Cylinder, 14-Piston rod, 15-Base, 16-Support plate, 17-Connecting rod, 18-Pressure block, 19-Baffle, 20-Push ring, 21-Rotating sleeve; Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Example 1

[0031] like Figures 1-6 As shown:

[0032] A tooling for machining irregularly shaped parts includes a column 1 and a pressure plate 2. The outer circumferential surface of the column 1 is provided with a vertical clamping surface 3. The pressure plate 2 is positioned close to the clamping surface 3, and a clamping space is formed between the clamping surface 3 and the pressure plate 2.

[0033] The column 1 is installed on the base 4.

[0034] The pressure plate 2 includes an integrally formed body 5 and a clamping claw 6. The clamping claw 6 is located above the body 5, and a mating groove 7 for placing the rib plate of the irregular part 9 is provided between adjacent clamping claws 6.

[0035] A positioning bolt 8 is rotatably installed on the pressure plate 2. The positioning bolt 8 can rotate freely on the pressure plate 2 but its position is relatively fixed. The column 1 has a positioning hole corresponding to the positioning bolt 8.

[0036] like Figure 3 and Figure 4 As shown, when using this device, loosen the positioning bolt 8, and move the pressure plate 2 away from the clamping surface 3, so that the clamping distance between the clamping surface 3 and the pressure plate 2 increases. Place the irregular part 9 in the clamping space between the clamping surface 3 and the pressure plate 2, and then tighten the positioning bolt 8. Move the pressure plate 2 closer to the clamping surface 3, reduce the distance between the clamping surface 3 and the pressure plate 2, until the pressure plate 2 and the clamping surface 3 clamp and fix the irregular part 9, and tighten the positioning bolt 8.

[0037] The ribs of the irregular part 9 are aligned with the mating grooves 7 on the pressure plate 2, so that the ribs of the irregular part 9 are stuck in the mating grooves 7, achieving horizontal positioning and avoiding lateral displacement.

[0038] like Figure 5 and Figure 6 As shown, further, a height-adjustable extension claw 10 is installed on the pressure plate 2, the top surface of the clamping claw 6 is inclined, the extension claw 10 is installed on the clamping claw 6, and the bottom of the extension claw 10 is provided with an inclined surface that cooperates with the top surface of the clamping claw 6.

[0039] The extension claw 10 is provided with a waist-shaped hole 11 opened along the height direction, and the clamping claw 6 is provided with a threaded hole corresponding to the waist-shaped hole 11. The waist-shaped hole 11 and the threaded hole are connected by a locking bolt 12.

[0040] After the pressure plate 2 has finished clamping, loosen the locking bolt 12, and move the extension claw 10 up and down along the oblong hole 11 according to the height of the irregular part 9. After adjusting it to the appropriate position, tighten the bolt. For example, when the height of the irregular part 9 is 80mm, the extension claw 10 can extend upward by 30mm from the initial position to increase the clamping contact area, so that the clamping force in the vertical direction is evenly distributed and the clamping stability is enhanced.

[0041] Example 2

[0042] like Figure 7As shown, a cylinder 13 is installed on the column 1 away from the pressure plate 2. The piston rod 14 of the cylinder 13 passes through the column 1 and connects to the pressure plate 2, driving the pressure plate 2 to move in a direction perpendicular to the clamping surface 3, thereby achieving automatic clamping.

[0043] In this embodiment, cylinder 13 is a double-acting cylinder, with air intake at the front end causing the piston rod 14 to extend and air intake at the rear end causing the piston rod 14 to retract. The output force of cylinder 13 can be adjusted by a pressure reducing valve. Compared with embodiment 1, cylinder 13 drives the clamping plate 2 for a shorter clamping time and has a smaller fluctuation range in clamping force.

[0044] In this embodiment, a guide hole can be opened on the clamping surface 3 of the column 1, and a guide post corresponding to the guide hole is installed on the pressure plate 2. When the pressure plate 2 moves, the guide post slides synchronously in the guide hole of the column 1 to avoid the pressure plate 2 from shifting.

[0045] Example 3

[0046] like Figure 8 and Figure 9 As shown, the difference between this embodiment and embodiment 1 is that an auxiliary clamping mechanism is installed on the top of the column 1 in this embodiment.

[0047] The auxiliary clamping mechanism includes a base 15 installed on the top of the column 1, a support plate 16 installed at the end of the base 15 near the clamping surface 3, and a reset mechanism provided on the support plate 16.

[0048] The reset mechanism includes a connecting rod 17. One end of the connecting rod 17 extends through the support plate 16 to the top of the pressure plate 2 and is connected to a pressure block 18. The other end of the connecting rod 17 is provided with a baffle 19, and a push ring 20 is installed on the baffle 19.

[0049] The connecting rod 17 is slidably connected to the support plate 16, and a return spring sleeved on the outside of the connecting rod 17 is provided between the support plate 16 and the baffle 19.

[0050] When the reset spring is fixedly installed, a rotating sleeve 21 embedded in the support plate 16 needs to be installed on the outer wall of the connecting rod 17. One end of the reset spring is fixed to the baffle 19, and the other end is fixed to the rotating sleeve 21. The connecting rod 17 is rotatably connected to the support plate 16 through the rotating sleeve 21.

[0051] The pressure block 18 on the auxiliary clamping mechanism is initially in a horizontal state. After the pressure plate 2 clamps the irregular part 9, the push ring 20 is pushed closer to the irregular part 9 by hand. The push plate and support plate 16 compress the return spring, and the connecting rod 17 drives the pressure block 18 at the end to move outward. After the pressure block 18 passes the irregular part 9, the rotating rod is rotated 90 degrees, and the pressure block 18 rotates accordingly, reducing the pushing force applied at the push ring 20 or releasing the push ring 20. Under the drive of the return spring, the baffle 19 and the connecting rod 17 are reset, and the pressure block 18 then contacts the top of the irregular part 9, forming a double clamping from the top and bottom. The cooperation of the pressure block 18, the pressure plate 2, and the column 1 realizes the clamping and fixing of the irregular part 9.

[0052] When releasing the clamp, hold the push ring 20 to drive the connecting rod 17 to move the end pressure block 18 outward, the pressure block 18 separates from the irregular part 9, and the irregular part 9 can be removed.

[0053] The connecting rod 17 is rotatably connected to the support plate 16 via the rotating sleeve 21, which can adapt to the tilt angle of the top surface of the irregular part 9. For example, when the top surface of the irregular part 9 is tilted at 5°, the pressure block 18 can rotate accordingly to increase the contact area between the pressure block 18 and the top surface and avoid local stress concentration.

[0054] This utility model enables efficient collaboration in the assembly of multiple components through precise tooling, strictly constrains the position of parts, keeps critical dimensional deviations within a minimal range, ensures that geometric tolerances meet design requirements, and utilizes processes such as edge rounding to guarantee no interference, thereby improving the smoothness and stability of assembly.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tooling fixture for machining irregularly shaped parts, characterized in that: It includes a column and an adjustable pressure plate. The outer circumferential surface of the column is provided with a vertical clamping surface. The pressure plate is located near the clamping surface, and a clamping space is formed between the clamping surface and the pressure plate.

2. The tooling for machining irregularly shaped parts according to claim 1, characterized in that: The column is mounted on the base.

3. The tooling for machining irregularly shaped parts according to claim 1, characterized in that: The pressure plate includes an integrally formed body and clamping claws, with the clamping claws located above the body.

4. The tooling for machining irregularly shaped parts according to claim 3, characterized in that: A mating groove for placing irregularly shaped parts ribs is provided between adjacent clamping claws.

5. The tooling for machining irregularly shaped parts according to claim 1, characterized in that: The pressure plate is rotatably mounted with positioning bolts, and the column is provided with positioning holes corresponding to the positioning bolts.

6. The tooling for machining irregularly shaped parts according to claim 1, characterized in that: A cylinder is installed on the column away from the pressure plate. The piston rod of the cylinder is connected to the pressure plate and drives the pressure plate to move in a direction perpendicular to the clamping surface.

7. The tooling for machining irregularly shaped parts according to claim 6, characterized in that: The piston rod of the cylinder passes through the column and is connected to the pressure plate.

8. The tooling for machining irregularly shaped parts according to claim 3, characterized in that: The pressure plate is equipped with height-adjustable extension claws.

9. The tooling for machining irregularly shaped parts according to claim 8, characterized in that: The extended claw is mounted on the clamping claw.

10. The tooling for machining irregularly shaped parts according to claim 9, characterized in that: The extension claw has a waist-shaped hole opened along the height direction, and the clamping claw has a threaded hole corresponding to the waist-shaped hole. The waist-shaped hole and the threaded hole are connected by a locking bolt.

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