Multi-point auxiliary supporting clamp for special-shaped shell part

Abstract

According to the multi-point auxiliary supporting clamp for the special-shaped shell part, the part, needing to be machined, of a thin-wall shell is not shielded, the thin-wall shell cannot deform, and the machining quality is high. The device comprises a bottom plate, and further comprises a positioning mechanism, a clamping mechanism and a supporting mechanism, and an inclined bridge plate is installed on the bottom plate; the positioning mechanism comprises a first lever oil cylinder installed on the bridge plate, a piston rod of the first lever oil cylinder is rotationally connected with one end of a first lever pressing plate, a positioning plate installed on the bridge plate is arranged below the other end of the first lever pressing plate, a positioning pin is installed on the top of the positioning plate, and the other end of the first lever pressing plate is a pressing end. The positioning mechanism is used for positioning and clamping the extending end face of the special-shaped shell part; the clamping mechanism comprises an oil cylinder installation base installed on the bridge plate, a second lever oil cylinder and a first supporting oil cylinder are installed on the side face of the oil cylinder installation base, a piston rod of the second lever oil cylinder is rotationally connected with one end of a second lever pressing plate, and the other end of the second lever pressing plate is a pressing end.

Description

Technical Field

[0001] The structure relates to the field of machining fixtures, in particular to a fixture for special-shaped shell parts with multi-point auxiliary support. Background Art

[0002] Traditional fixtures for special-shaped shell parts generally use a pressure plate to press the thin-walled shell part of the part body, but the pressure plate will block the pressed thin-walled shell part, making it impossible to process, and the pressing force of the pressure plate will easily cause the thin-walled shell to deform, resulting in poor processing quality. Summary of the invention

[0003] In view of the shortcomings of the existing clamp pressure plate for special-shaped shell parts that the pressed thin-walled shell part cannot be processed, and the pressing force of the pressure plate can easily cause the thin-walled shell to deform, resulting in low processing quality, the utility model provides a clamp for special-shaped shell parts with multi-point auxiliary support, which does not block the thin-walled shell parts that need to be processed, does not deform the thin-walled shell, and has high processing quality.

[0004] A clamp for special-shaped shell parts with multi-point auxiliary support, which includes a base plate, characterized in that it also includes a positioning mechanism, a clamping mechanism and a supporting mechanism, the base plate is installed with an inclined bridge plate; the positioning mechanism includes a first lever cylinder installed on the bridge plate, the piston rod of the first lever cylinder is rotatably connected to one end of the first lever pressure plate, a positioning plate installed on the bridge plate is provided below the other end of the first lever pressure plate, a positioning pin is installed on the top of the positioning plate, the other end of the first lever pressure plate is a clamping end, and the positioning mechanism constitutes a positioning and clamping of the protruding end surface of the special-shaped shell part; the clamping mechanism includes a cylinder mounting seat installed on the bridge plate, and the side of the cylinder mounting seat is installed with The second lever cylinder and the first supporting cylinder, the piston rod of the second lever cylinder is rotatably connected to one end of the second lever pressure plate, the other end of the second lever pressure plate is the clamping end, the output end of the first supporting cylinder is connected to the first supporting bolt, the first supporting bolt and the clamping end of the second lever pressure plate constitute a clamping of the boss of the special-shaped shell part; the supporting mechanism includes an auxiliary supporting column installed on the base plate, a second supporting cylinder installed on the bridge plate, and a third supporting cylinder installed on the side of the supporting cylinder seat, the supporting cylinder seat is installed on the lower part of the surface inclined surface of the bridge plate, the output ends of the second supporting cylinder and the third supporting cylinder are respectively connected to the second supporting bolt and the third supporting bolt.

[0005] The further feature is that: there are two positioning mechanisms, and the two positioning mechanisms respectively position and clamp the two protruding end surfaces on both sides of the special-shaped shell part;

[0006] There are three second supporting oil cylinders, and the three second supporting oil cylinders are distributed in a triangle;

[0007] The pressing ends of the first lever pressing plate and the second lever pressing plate are both provided with floating pressing blocks;

[0008] The second lever cylinder and the first supporting cylinder are arranged obliquely relative to the bridge deck.

[0009] In the above structure of the utility model, the setting of the positioning mechanism realizes the positioning and clamping of the protruding end face of the special-shaped shell part, and the setting of the clamping mechanism realizes the clamping of the boss of the special-shaped shell part. The clamping parts are all the non-thin-walled shell parts of the special-shaped shell part, which avoids the huge clamping force from causing the thin-walled shell to deform, and will not block the parts to be processed, thereby improving the processing quality; the three second supporting cylinders of the support mechanism support the bottom surface of the special-shaped shell part, and the third supporting cylinder and the auxiliary supporting column support the side of the special-shaped shell part, and support the special-shaped shell part from multiple points, ensuring the stability of the support. The inclined bridge plate allows the special-shaped shell part to rely on gravity to press against the support mechanism, ensuring that the supporting force is moderate, so that the special-shaped shell part can be stably supported, and at the same time it will not be deformed due to the supporting force, ensuring a high processing quality. The floating pressure block set by the first lever pressure plate and the second lever pressure plate can float according to the shape of the clamping part, eliminating shape errors, and further ensuring the stability of clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of the main view of the utility model;

[0011] Figure 2 It is a schematic diagram of the utility model from a top view;

[0012] Figure 3 It is a schematic diagram of the state of clamping special-shaped shell parts of the utility model;

[0013] Figure 4 It is a schematic diagram of the structure of special-shaped shell parts. DETAILED DESCRIPTION

[0014] See Figures 1 to 4 A clamp for special-shaped shell parts with multi-point auxiliary support, which includes a base plate 1, on which an inclined bridge plate 2 is installed, and also includes a positioning mechanism, a clamping mechanism and a supporting mechanism. The base plate 1 is installed with an inclined bridge plate 2; the positioning mechanism includes a first lever cylinder 3 installed on the bridge plate 2, and the piston rod of the first lever cylinder 3 is rotatably connected to one end of the first lever pressure plate 4, and a positioning plate 5 installed on the bridge plate 2 is provided below the other end of the first lever pressure plate 4, and a positioning pin 6 is installed on the top of the positioning plate 5, and the other end of the first lever pressure plate 4 is a clamping end; there are two positioning mechanisms, and the two positioning mechanisms respectively position and clamp the two protruding end surfaces 192 on both sides of the special-shaped shell part 19.

[0015] The clamping mechanism includes a cylinder mounting seat 11 mounted on the bridge plate 2, and a second lever cylinder 7 and a first supporting cylinder 9 are mounted on the side of the cylinder mounting seat 11. The piston rod of the second lever cylinder 7 is rotatably connected to one end of the second lever pressure plate 8, and the other end of the second lever pressure plate 8 is a clamping end. The output end of the first supporting cylinder 9 is connected to the first supporting bolt 10, and the first supporting bolt 10 and the clamping end of the second lever pressure plate 8 constitute a clamping of the boss 193 of the special-shaped shell part 19; the supporting mechanism includes an auxiliary supporting column 14 mounted on the bottom plate 1, three second supporting cylinders 12 mounted on the bridge plate 2, and a third supporting cylinder 16 mounted on the side of the supporting cylinder seat 15, and the three second supporting cylinders 12 are distributed in a triangle. The supporting cylinder seat 15 is mounted on the lower part of the surface slope of the bridge plate 2, and the output ends of the second supporting cylinder 12 and the third supporting cylinder 16 are connected to the second supporting bolt 13 and the third supporting bolt 17 respectively.

[0016] The pressing ends of the first lever pressing plate 4 and the second lever pressing plate 8 are both provided with floating pressing blocks 18, which can float according to the shape of the pressing part to eliminate shape errors.

[0017] The second lever cylinder 7 and the first supporting cylinder 9 are tilted relative to the bridge plate 2 so that the clamping position better matches the shape of the boss 193 of the special-shaped shell part 19 .

[0018] Put the special-shaped shell part 19 into the fixture, insert the positioning pin 6 into the pin holes of the two protruding end faces 192 of the special-shaped shell part 19, and the flange 191 of the special-shaped shell part 19 leans against the auxiliary support column 14. Then the piston rod of the first lever cylinder 3 extends upward, driving the other end of the first lever pressure plate 4 to press down, completing the positioning of the special-shaped shell part 19 and the clamping of the protruding end faces 192 of the special-shaped shell part 19; then the second support bolt 13 of the second support cylinder 12 and the third support bolt 16 of the third support cylinder 16 17 extends out, three second supporting oil cylinders 12 support three points on the bottom surface of the special-shaped shell part 19, the third supporting oil cylinder 16 supports one point on the side of the special-shaped shell part 19, and the auxiliary supporting column 14 supports the flange 191 of the special-shaped shell part 19, thus completing the support of the special-shaped shell part 19; finally, the piston rod of the second lever oil cylinder 7 extends upward, driving the other end of the second lever pressure plate 8 to press downward, and the first supporting bolt 10 of the first supporting oil cylinder 9 extends upward, thus completing the clamping of the boss 193 of the special-shaped shell part 19. At this point, the parts are clamped and can be processed.

[0019] After the processing is completed, the first lever cylinder 3 and the second lever cylinder 7 are retracted at the same time, driving the pressing ends of the first lever pressure plate 4 and the second lever pressure plate 8 to be lifted and separated from the special-shaped shell part 19. The first support bolt 10, the second support bolt 13, and the third support bolt 17 of the first support cylinder 9, the second support cylinder 12, and the third support cylinder 16 are retracted at the same time and separated from the special-shaped shell part 19. At this time, the special-shaped shell part 19 can be taken out to complete the disassembly.

Claims

1. A fixture for special-shaped shell parts with multi-point auxiliary support, comprising a bottom plate, characterized in that: It also includes a positioning mechanism, a clamping mechanism and a supporting mechanism, the bottom plate is installed with an inclined bridge plate; the positioning mechanism includes a first lever cylinder installed on the bridge plate, the piston rod of the first lever cylinder is rotatably connected to one end of the first lever pressure plate, a positioning plate installed on the bridge plate is provided below the other end of the first lever pressure plate, a positioning pin is installed on the top of the positioning plate, the other end of the first lever pressure plate is a clamping end, and the positioning mechanism constitutes a positioning and clamping of the protruding end surface of the special-shaped shell part; the clamping mechanism includes a cylinder mounting seat installed on the bridge plate, a second lever cylinder and a first supporting cylinder are installed on the side of the cylinder mounting seat, The piston rod of the second lever cylinder is rotatably connected to one end of the second lever pressure plate, and the other end of the second lever pressure plate is a clamping end. The output end of the first supporting cylinder is connected to the first supporting bolt, and the first supporting bolt and the clamping end of the second lever pressure plate constitute a clamping of the boss of the special-shaped shell part; the supporting mechanism includes an auxiliary supporting column installed on the base plate, a second supporting cylinder installed on the bridge plate, and a third supporting cylinder installed on the side of the supporting cylinder seat, and the supporting cylinder seat is installed at the lower part of the surface inclined surface of the bridge plate, and the output ends of the second supporting cylinder and the third supporting cylinder are respectively connected to the second supporting bolt and the third supporting bolt.

2. A multi-point auxiliary support fixture for special-shaped housing parts according to claim 1, characterized in that: There are two positioning mechanisms, and the two positioning mechanisms respectively position and clamp the two protruding end surfaces on both sides of the special-shaped shell part.

3. The fixture for special-shaped shell parts with multi-point auxiliary support according to claim 1 is characterized in that: There are three second supporting oil cylinders, and the three second supporting oil cylinders are distributed in a triangle.

4. A fixture for special-shaped shell parts with multi-point auxiliary support according to claim 1 or 2, characterized in that: The pressing ends of the first lever pressing plate and the second lever pressing plate are both provided with floating pressing blocks.

5. A multi-point auxiliary support fixture for special-shaped housing parts according to claim 1 or 2, characterized in that: The second lever cylinder and the first supporting cylinder are arranged obliquely relative to the bridge deck.

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