Locking tool for machining thin-wall fin

Abstract

The locking tool comprises a locking base, a sliding block, a sliding block bolt, an inclined face pressing plate, an arc face pressing plate and a pressing plate bolt, two positioning columns and a boss are arranged on the upper face of the locking base, a sliding groove is formed in the locking base, an opening is formed in the groove wall of the side, close to the positioning columns, of the sliding groove, the sliding block is arranged in the sliding groove, and the pressing plate bolt is arranged on the sliding block. The locking seat is provided with a sliding block jacking screw hole, a screw rod of the sliding block bolt is installed in the sliding block jacking screw hole and jacks the sliding block, the inclined face pressing plate is arranged on the locking seat, the boss is provided with a pressing plate screw hole, and the two ends of the cambered face pressing plate are arranged on the inclined face pressing plate and the boss respectively. And a screw rod of the pressing plate bolt penetrates through a vertical through hole in the middle of the cambered surface pressing plate from top to bottom and then is connected with the pressing plate screw hole. According to the thin-wall fin clamping and locking device, stable and reliable clamping and locking functions can be achieved in the two-side direction and the thickness direction of a thin-wall fin, the thin edge of the thin-wall fin and the whole thin-wall fin are effectively protected, and the overall machining quality, the machining efficiency and the part qualification rate are improved.

Description

Technical Field

[0001] The utility model relates to a locking tool, in particular to a locking tool used for processing thin-wall winglets. Background Art

[0002] In aviation products, thin-walled winglets are a common part. Due to their small thickness and many inclined or conical surfaces, it is difficult to clamp and lock them before processing. Either it is difficult to clamp and lock them reliably, or the parts may be damaged, ultimately resulting in insufficient processing accuracy and a low part qualification rate.

[0003] for example Figure 1 The thin-walled wing shown in the figure has a thicker thick side 5 of about 3mm on one side and a thinner thin side 6 of about 0.5mm on the opposite side. The overall thickness is very small. One side surface is composed of two inclined surfaces 4, and a wing tip surface is a conical surface 1. The thick side 5 is provided with two protruding connecting posts 3, and the connecting posts 3 are provided with connecting through holes 2. The most difficult parts to process are the connecting through holes 2 of the connecting posts 3 and the conical surface 1 of the wing tip surface. The processing of the connecting through holes 2 needs to meet the tolerance requirement of 0.01mm from the center of the hole to the step shoulder surface. When the clamping is unstable, the processing of the conical surface 1 is prone to vibration marks, resulting in the scrapping of the tool parts. Secondly, it is also difficult to align and level during clamping. In addition, the thickness of the part is very small, and the wrong clamping method is likely to cause deformation of the part.

[0004] Traditional fixtures used for processing the above-mentioned thin-walled winglets generally use a combination of inclined pads and multiple pressure blocks for clamping, which has problems such as low positioning accuracy, low clamping and locking reliability, and low clamping and locking efficiency, resulting in a low part qualification rate. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems and provide a locking tool for processing thin-walled wing sheets, which has stable and reliable clamping and locking and high positioning accuracy.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A locking tool for processing thin-walled wing sheets, comprising a locking seat, a slider, a slider bolt, an inclined pressure plate, a curved pressure plate and a pressure plate bolt, wherein the first side of the upper opposite sides of the locking seat is provided with two vertical positioning posts, and the upper side of the locking seat is provided with an upwardly protruding boss near the second side of the opposite sides thereof, and the locking seat is provided with a sliding groove with two ends penetrating therethrough on one side of the lower part of the boss near the positioning post, the length direction between the two ends of the sliding groove is the same as the direction of the connection line of the two positioning posts, the bottom surface of the sliding groove is located below the upper side of the locking seat, the top surface of the groove is located above the upper side of the locking seat, and the sliding groove A groove wall opening is provided on one side near the positioning column, and the slider is placed in the slide groove. A transverse slider tightening screw hole is provided on the locking seat near the lower part of the boss, and the screw of the slider bolt is installed in the slider tightening screw hole and supports the slider. The lower side of the inclined pressure plate is an inclined surface and is placed on the locking seat and between the positioning column and the boss. A vertical pressure plate screw hole is provided on the upper side of the boss, and the two ends of the arc pressure plate with an arc surface on the lower surface are respectively placed on the upper side of the inclined pressure plate and the upper side of the boss, and the screw of the pressure plate bolt passes through the vertical through hole in the middle part of the arc pressure plate from top to bottom and is connected to the pressure plate screw hole.

[0008] Preferably, in order to better lock the inclined pressure plate laterally and improve the assembly and disassembly efficiency without removing the inclined pressure plate when assembling and disassembling parts, the locking tooling for processing thin-walled winglets also includes a connecting bolt, and a transverse connecting screw hole is provided on the side of the inclined pressure plate close to the boss, and a waist-shaped through hole with a transverse axial direction is provided at a position on the boss corresponding to the connecting screw hole, and the radial length direction of the waist-shaped through hole is vertical, and the screw rod of the connecting bolt passes through the waist-shaped through hole and is connected to the connecting screw hole.

[0009] Preferably, in order to achieve a more reliable clamping and locking function and facilitate quick assembly and disassembly, the slider tightening screw hole and the slider bolt are both two and are located near the two ends of the slide slot, and the slider bolt is a butterfly bolt.

[0010] Preferably, in order to achieve a more reliable clamping and locking function and reduce the consumables of the arc pressure plate, the pressure plate bolt and the arc pressure plate are both two and are located near the two ends of the slide groove, and the upper surface of the arc pressure plate is an arc surface.

[0011] Preferably, in order to place parts more smoothly and realize the function of temporarily storing debris, a concave avoidance groove is provided on the upper side of the locking seat near the positioning column, and the length direction of the avoidance groove is the same as the length direction of the slide groove.

[0012] Preferably, in order to cooperate with the inclined surface of the part to achieve the function of rapid leveling, the upper surface of the locking seat has an angle of 0°-15° with the horizontal direction.

[0013] The beneficial effects of the utility model are:

[0014] The utility model designs a locking seat, a slider, a slider bolt, a bevel pressure plate, a curved pressure plate and a pressure plate bolt that cooperate with each other, and arranges a positioning column and a boss on the locking seat. When in use, it is only necessary to place the part to be processed, that is, the thin-walled wing piece, on the locking seat, place the two connecting columns of the thin-walled wing piece close to the two positioning columns respectively, then place the bevel pressure plate on the thin-walled wing piece, place the curved pressure plate on the bevel pressure plate and the boss, then tighten the slider by the slider bolt, and tighten the curved pressure plate by the pressure plate bolt, so that a stable and reliable clamping and locking function can be achieved in the two side directions and thickness direction of the thin-walled wing piece, and the thin-walled wing piece can be fixed by improving the processing accuracy of each component. The high-precision positioning function of the thin-walled wing can improve the processing accuracy and processing quality; at the same time, one side of the slider is used to tighten the thin edge of the thin-walled wing, one side of the inclined pressure plate and part of the groove wall of the slide groove at the same time, so as to achieve reliable clamping of the thin-walled wing and avoid deformation of the thin edge of the thin-walled wing due to excessive pressure, thereby effectively protecting the thin edge of the thin-walled wing and the entire thin-walled wing; in addition, the two positioning columns can realize the stable support function of the connecting through hole on the connecting column of the thin-walled wing and the conical surface at one end, thereby further improving the processing accuracy and processing quality, and finally achieving the overall processing quality and processing efficiency of the thin-walled wing processing, and improving the qualified rate of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional image of a thin-walled wing;

[0016] Figure 2 It is a three-dimensional diagram of the locking tooling for processing thin-walled fins according to the utility model after assembly;

[0017] Figure 3 It is a three-dimensional diagram of a locking seat of a locking tool for processing thin-walled fins according to the utility model;

[0018] Figure 4 This is one of the three-dimensional views of the locking tooling used for processing thin-walled winglets in the utility model during use;

[0019] Figure 5 This is the second stereoscopic view of the locking tooling used for processing thin-walled fins in the utility model during use;

[0020] Figure 6 It is a half-section stereogram of the locking tooling used for processing thin-walled winglets in the utility model during use, and its assembly state is Figure 5 correspond;

[0021] Figure 7 This is the third stereoscopic view of the locking tooling used for processing thin-walled fins in the utility model during use, showing the state after the thin-walled fins are installed;

[0022] Figure 8 This is the fourth stereoscopic view of the locking tooling used for processing thin-walled fins in the utility model during use, which shows the state after the thin-walled fins are installed and in Figure 7 Rotated 90° on the basis of. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] like Figure 2 and Figure 3 As shown, the locking tooling for processing thin-walled wing sheets of the utility model comprises a locking seat 7, a slider 12, a slider bolt 18, an inclined pressure plate 10, a curved pressure plate 11 and a pressure plate bolt 13. Two vertical positioning columns 8 are provided on the first side of the two opposite sides of the upper surface of the locking seat 7, and an upwardly protruding boss 15 is provided on the upper surface of the locking seat 7 near the second side of the two opposite sides thereof. A sliding groove 14 with two ends passing therethrough is provided on one side of the lower part of the boss 15 of the locking seat 7 near the positioning column 8. The length direction between the two ends of the sliding groove 14 is the same as the direction of the connection line of the two positioning columns 8. The bottom surface of the sliding groove 14 is located below the upper surface of the locking seat 7, and the top surface of the groove is located above the upper surface of the locking seat 7. The groove wall on one side of the slide groove 14 near the positioning column 8 is open, and the slider 12 is placed in the slide groove 14. A horizontal slider tightening screw hole 20 is provided on the locking seat 7 near the lower part of the boss 15, and the screw of the slider bolt 18 is installed in the slider tightening screw hole 20 and supports the slider 12. The bottom of the inclined pressure plate 10 is an inclined surface and is placed on the locking seat 7 and between the positioning column 8 and the boss 15. A vertical pressure plate screw hole 19 is provided on the top of the boss 15. The two ends of the arc pressure plate 11 with an arc surface on the lower surface are respectively placed on the upper part of the inclined pressure plate 10 and the upper part of the boss 15. The screw of the pressure plate bolt 13 passes through the vertical through hole in the middle of the arc pressure plate 11 from top to bottom and is connected to the pressure plate screw hole 19.

[0025] like Figure 2 , Figure 3 and Figure 6 As shown, the utility model also discloses the following more optimized specific structures:

[0026] In order to better lock the inclined pressure plate 10 laterally and improve the assembly and disassembly efficiency without removing the inclined pressure plate 10 when assembling and disassembling parts, the locking tooling for processing thin-walled winglets also includes a connecting bolt 17. A transverse connecting screw hole 21 is provided on the inclined pressure plate 10 on one side close to the boss 15. A waist-shaped through hole 16 with a transverse axial direction is provided at a position on the boss 15 corresponding to the connecting screw hole 21, and the radial length direction of the waist-shaped through hole 16 is vertical. The screw rod of the connecting bolt 17 passes through the waist-shaped through hole 16 and is connected to the connecting screw hole 21.

[0027] In order to achieve a more reliable clamping and locking function and facilitate quick assembly and disassembly, there are two slider tightening screw holes 20 and two slider bolts 18 located near the two ends of the slide slot 14, and the slider bolts 18 are butterfly bolts.

[0028] In order to achieve a more reliable clamping and locking function and reduce the consumables of the arc pressure plate, there are two pressure plate bolts 13 and two arc pressure plates 11 located near the two ends of the slide slot 14, and the upper surface of the arc pressure plate 11 is an arc surface.

[0029] In order to place parts more smoothly and realize the function of temporarily storing debris, a concave escape groove 9 is provided on the upper side of the locking seat 7 near the positioning column 8, and the length direction of the escape groove 9 is the same as the length direction of the slide groove 14.

[0030] In order to cooperate with the inclined surface of the part to achieve the function of rapid leveling, the upper surface of the locking seat 7 has an angle of 0°-15° with the horizontal direction, and the specific angle is determined according to the inclination of the corresponding inclined surface of the part.

[0031] like Figure 1-Figure 8 As shown, when in use, the part to be processed, i.e., the thin-walled wing, is placed on the locking seat 7, and the angle between the upper surface and the horizontal direction of the locking seat 7 is used to automatically complete the leveling function of the thin-walled wing, and the two connecting columns 3 of the thin-walled wing are respectively close to the two positioning columns 8 to realize the positioning function of the thick edge 5 of the thin-walled wing, and then the inclined pressure plate 10 is placed on the thin-walled wing, and the arc pressure plate 11 is placed on the inclined pressure plate 10 and the boss 15, and then the slider 12 is pressed by the slider bolt 18, and the arc pressure plate 1 is fixed by the pressure plate bolt 13. 1 is pressed, and the inclined pressure plate 10 is locked by the connecting bolts 17, so that a stable and reliable clamping and locking function can be achieved in the two side directions and thickness direction of the thin-walled wing. Finally, the entire tooling is rotated 90°, so that the two connecting columns 3 are respectively located above the two positioning columns 8. The two positioning columns 8 play a reliable supporting function for the two connecting columns 3 and the entire thin-walled wing. Under the condition of all-round reliable positioning of the thin-walled wing, high-precision processing of the connecting through hole 2 of the connecting column 3 and the conical surface 1 of the wing tip surface can be achieved.

[0032] illustrate: Figure 4-Figure 8The thin-walled fins shown in the figure should originally be unprocessed parts, but in order to facilitate better understanding, the figures all use processed thin-walled fins, which does not affect the description of the working principle of the utility model.

[0033] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.

Claims

1. A locking tool for processing thin-walled winglets, comprising a locking seat, characterized in that: The lock member is a pair of locks, each of which has a first end and a second end, and the second end of the lock member is affixed to the locking member, the second end of the lock member being attached to the locking member and having two or more locking members. The wall opening is arranged, the slider is placed in the slide groove, a transverse slider tightening screw hole is arranged on the locking seat near the lower part of the boss, and the screw of the slider bolt is installed in the slider tightening screw hole and supports the slider, the lower part of the inclined pressure plate is an inclined surface and is placed on the upper part of the locking seat and between the positioning column and the boss, a vertical pressure plate screw hole is arranged on the upper part of the boss, and the two ends of the arc pressure plate with an arc surface on the lower surface are respectively placed on the upper part of the inclined pressure plate and the upper part of the boss, and the screw of the pressure plate bolt passes through the vertical through hole in the middle part of the arc pressure plate from top to bottom and is connected with the pressure plate screw hole.

2. The locking tool for processing thin-walled fins according to claim 1, characterized in that: The locking tooling for processing thin-walled wing flaps also includes a connecting bolt. A transverse connecting screw hole is provided on the side of the inclined pressure plate close to the boss. A waist-shaped through hole with a transverse axial direction is provided at a position on the boss corresponding to the connecting screw hole, and the radial length direction of the waist-shaped through hole is vertical. The screw rod of the connecting bolt passes through the waist-shaped through hole and is connected to the connecting screw hole.

3. The locking tool for processing thin-walled fins according to claim 1 or 2, characterized in that: The slider has two tightening screw holes and two slider bolts, which are located near the two ends of the slide slot, and the slider bolts are butterfly bolts.

4. The locking tool for processing thin-walled fins according to claim 1 or 2, characterized in that: There are two of the pressure plate bolts and the arc pressure plate, and they are located near the two ends of the slide slot, and the upper surface of the arc pressure plate is an arc surface.

5. The locking tool for processing thin-walled fins according to claim 1 or 2, characterized in that: A concave escape groove is provided on the upper surface of the locking seat near the positioning column, and the length direction of the escape groove is the same as the length direction of the sliding groove.

6. The locking tool for processing thin-walled fins according to claim 1 or 2, characterized in that: An angle of 0°-15° is formed between the upper surface of the locking seat and the horizontal direction.

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