Clamp for titanium alloy special-shaped structural part and using method of clamp

Abstract

The invention provides a clamp for a titanium alloy special-shaped structure part and a using method of the clamp, and relates to the technical field of clamps. The clamp comprises a placing block, a plurality of pressing plates are arranged on one side of the placing block, a fixing device is arranged on one side of the placing block, and the fixing device fixes the pressing plates at the same time through a plurality of fixing plates; the fixing device comprises a mounting assembly, an arc-shaped plate, a threaded rod, a connecting plate, an operation block, a circular ring, an extension plate and a fixing plate, by using the fixing device, the multiple pressing plates can be fixed at the same time, the operation steps for fixing the pressing plates are reduced, the situation that the pressing plates need to be fixed independently, and then the operation steps are many is avoided, and the working efficiency is improved. And the use efficiency of the clamp can be improved. And by using the blocking device, chippings generated during machining of the titanium alloy special-shaped structure part can be blocked, and the situation that the chippings drift everywhere, and follow-up chipping collection treatment is affected is avoided.

Description

Technical Field

[0001] The invention relates to the field of clamps, in particular to a clamp for titanium alloy special-shaped structural parts and a use method thereof. Background Art

[0002] A fixture is a tool used in the fields of mechanical processing, assembly, and testing. It is mainly used to fix the workpiece to ensure that the workpiece does not move during processing, assembly, or testing, ensuring accuracy and safety.

[0003] When processing titanium alloy special-shaped structural parts, the special-shaped structural parts are placed in the center area of ​​the placement block of the fixture, and then the multiple pressure plates on the placement block are rotated, and then contacted and squeezed with the surface of the special-shaped structural parts, and then the pressure plates are fixed in position with bolts, and then the special-shaped structural parts are clamped and fixed. When fixing the pressure plates in position, multiple bolts are needed to fix them separately, which leads to more operation steps, resulting in problems that affect the efficiency of the fixture. Summary of the invention

[0004] The technical problem to be solved by the present invention is that when fixing the position of the pressure plate, multiple bolts are needed to fix it separately, which results in more operation steps, thus affecting the efficiency of the clamp.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a fixture for titanium alloy special-shaped structural parts and a method of using the fixture, including a placement block, a plurality of pressure plates are provided on one side of the placement block, and a fixing device is provided on one side of the placement block, and the fixing device fixes the plurality of pressure plates simultaneously through the plurality of fixing plates.

[0006] The effect achieved by the above components is: when processing titanium alloy special-shaped structural parts, the special-shaped structural parts will be placed in the central area of ​​the placement block of the fixture, and then the multiple pressure plates on the placement block will be rotated, and then contacted and extruded with the surface of the special-shaped structural parts, and then a fixing device will be used to fix the position of multiple pressure plates at the same time, and then the clamping and fixing of the special-shaped structural parts will be completed.

[0007] Preferably, the fixing device includes an installation component, an arc plate, a threaded rod, a connecting plate, an operating block, a ring, an extension plate and a fixed plate. The installation component is arranged on one side of the placement block to install the arc plate on the side of the placement block close to the pressure plate. The operating block drives the threaded rod to rotate on the surface of the arc plate, and the threaded rod drives the connecting plate and the ring arranged on one side of the connecting plate to move. The ring is used to set the fixed plate through the extension plate and drives the fixed plate to move.

[0008] The effect achieved by the above components is: before using the pressure plate, the arc plate is fixed to the side of the placement block close to the pressure plate through the installation component, and then when the pressure plate contacts and squeezes the surface of the special-shaped structural part, the operating block is rotated to make the threaded rod fixed on one side of the operating block rotate on one side of the arc plate, and then the threaded rod drives the connecting plate with the surface thread connection to move downward, and then the circular ring fixed on one side of the connecting plate drives the fixed plate fixed on one side of the extension plate to move downward through the extension plate fixed on one side, and then the fixed plate and the pressure plate are abutted and fixed, and then the position of the pressure plate is fixed, and then the position of the titanium alloy special-shaped structural parts on the surface of the fixture is quickly fixed. By using a fixing device, multiple pressure plates can be fixed at the same time, reducing the operating steps when fixing the pressure plates, avoiding the need to fix the pressure plates separately, and then resulting in more operating steps, thereby improving the efficiency of fixture use.

[0009] Preferably, the mounting assembly includes a first square tube, mounting bolts, a mounting plate and a gasket, wherein the first square tube is arranged on one side of the placement block, the mounting bolts pass through the gasket and the first square tube to be fixed to the mounting plate inside the first square tube, and the mounting plate is arranged on one side of the arc plate.

[0010] The effect achieved by the above components is: when fixing the position of the arc plate, move the arc plate so that the mounting plate fixed on one side of the arc plate is inserted into the first square passage, and then put the gasket on one side of the first square passage, and then turn the mounting bolt so that the mounting bolt passes through the gasket and the first square passage, and then is threadedly fixed with the mounting plate, and the mounting bolt abuts against the gasket, and then the position of the arc plate is fixed.

[0011] Preferably, a stabilizing assembly is provided on the side of the circular ring away from the connecting plate, the stabilizing assembly comprises a stabilizing plate and a round rod, the stabilizing rod is arranged on the side of the circular ring away from the connecting plate, the round rod is arranged on the side of the arc plate away from the threaded rod, and the circular ring moves inside the stabilizing plate.

[0012] The effect achieved by the above components is: the round rod fixed on one side of the arc plate slides inside the stabilizing plate fixed on one side of the circular ring, and then the trajectory of the circular ring moving up and down is restricted, so that the circular ring moves more stably.

[0013] Preferably, a plurality of anti-sliding blocks are provided on one side of the operating block, and the plurality of anti-sliding blocks increase the surface friction of the operating block.

[0014] The effect achieved by the above components is: by fixing a plurality of anti-sliding blocks on one side of the operating block, the friction between the operator and the operating block is increased, making it easier for the operator to rotate the anti-sliding block.

[0015] Preferably, a reinforcing plate is provided on one side of the extension plate close to the fixing plate, and the reinforcing plate improves the connection strength between the extension plate and the fixing plate.

[0016] The effect achieved by the above components is: by fixing the two ends of the reinforcing plate to the extension plate and the fixed plate, the connection strength between the extension plate and the fixed plate is improved, and deformation of the connection between the fixed plate and the extension plate is avoided due to stress.

[0017] Preferably, blocking devices are provided on both sides of the circular ring, and the blocking devices include a square plate, a spring, a telescopic rod, an L-shaped plate and a baffle plate. The square plate is arranged on one side of the circular ring, the spring and the telescopic rod are arranged on the side of the square plate away from the circular ring, and the telescopic rod is inside the spring to limit the spring, the L-shaped plate is arranged on the side of the spring and the telescopic rod away from the square plate, and the baffle plate is arranged on the side of the L-shaped plate away from the spring.

[0018] The effect achieved by the above components is: when the circular ring approaches the placement block, the circular ring drives the square plate fixed on one side to move downward, and then the square plate drives the spring and telescopic rod fixed on one side to deform, but the L-shaped plate and the baffle plate fixed on one side of the spring and the telescopic rod do not change their positions, and the baffle plate blocks the surrounding area of ​​the titanium alloy special-shaped structural parts to prevent the debris generated during reinforcement from escaping from the fixture. When the circular ring is reset, it will drive the spring and the telescopic rod to reset through the square plate, and then the L-shaped plate and the baffle plate will not be moved upward, and after the baffle plate is forced to move upward, it can be quickly reset by the spring. By using the blocking device, the debris generated during the processing of the titanium alloy special-shaped structural parts can be blocked to prevent the debris from floating everywhere and affecting the subsequent collection and processing of the debris.

[0019] Preferably, a second square passage is provided on one side of the square plate, and the second square passage restricts the shape of the shielding plate.

[0020] The effect achieved by the above components is: by fixing the second square passage on one side of the square plate, the second square passage extends the shielding plate to move, and the shape of the shielding plate is restricted to avoid deformation of the shielding plate due to force.

[0021] A method for using a fixture for titanium alloy special-shaped structural parts, using the fixture for titanium alloy special-shaped structural parts, comprising the following steps:

[0022] S1. Place the special-shaped structural parts in the center area of ​​the placement block of the fixture;

[0023] S2, rotating multiple pressing plates;

[0024] S3, restricting the trajectory of the ring moving up and down to make the ring move more stably;

[0025] S4, the fixing plate is abutted and fixed against the pressing plate, and then the position of the pressing plate is fixed;

[0026] S5. Pull the shielding plate to shield the periphery of the titanium alloy special-shaped structural parts.

[0027] In summary, the beneficial effects of the present invention are:

[0028] By using the fixing device, before using the pressing plate, move the arc plate so that the mounting plate fixed on one side of the arc plate is inserted into the first square tube, and then put the gasket on one side of the first square tube, and then turn the mounting bolt so that the mounting bolt passes through the gasket and the first square tube, and then is threadedly fixed with the mounting plate, and the mounting bolt abuts against the gasket, and then the position of the arc plate is fixed. Then, when the pressing plate contacts and extrude the surface of the special-shaped structural part, turn the operating block so that the threaded rod fixed on one side of the operating block rotates on one side of the arc plate, and then the threaded rod drives the connecting plate with the surface thread connection to move downward, and then the circular ring fixed on one side of the connecting plate is passed through a The extension plate fixed on the side drives the fixed plate fixed on one side of the extension plate to move downward. At this time, the round rod fixed on one side of the arc plate slides inside the stabilizing plate fixed on one side of the circular ring, and then limits the trajectory of the circular ring moving up and down, so that the circular ring can move more stably. Then the fixed plate and the pressure plate are abutted and fixed, and the position of the pressure plate is fixed. Then the position of the titanium alloy special-shaped structural parts on the surface of the fixture is quickly fixed. Multiple pressure plates can be fixed at the same time, reducing the operating steps when fixing the pressure plates, avoiding the need to fix the pressure plates separately, and then resulting in more operating steps. The efficiency of the fixture can be improved.

[0029] By using a blocking device, the debris generated during the processing of titanium alloy special-shaped structural parts can be blocked to prevent the debris from floating everywhere and affecting the subsequent collection and processing of the debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0031] Figure 1 A three-dimensional structural schematic diagram of a fixture for titanium alloy special-shaped structural parts and a method of using the fixture is provided in the present invention;

[0032] Figure 2 The present invention proposes a fixture for titanium alloy special-shaped structural parts and a method for using the fixture Figure 1 Schematic diagram of the local three-dimensional structure;

[0033] Figure 3 The present invention provides a fixture for titanium alloy special-shaped structural parts and a stereoscopic structural schematic diagram of a fixing device in a method of using the fixture;

[0034] Figure 4 The present invention proposes a fixture for titanium alloy special-shaped structural parts and a method for using the fixture Figure 3 Schematic diagram of the local three-dimensional structure;

[0035] Figure 5 The present invention proposes a fixture for titanium alloy special-shaped structural parts and a method for using the fixture Figure 2 A magnified image of point A;

[0036] Figure 6 The present invention provides a fixture for titanium alloy special-shaped structural parts and a three-dimensional structural schematic diagram of a blocking device in a method of using the fixture;

[0037] Figure 7 The present invention proposes a fixture for titanium alloy special-shaped structural parts and a method for using the fixture Figure 6 Enlarged view of point B.

[0038] Legend: 1. Placement block; 2. Pressure plate; 3. Fixing device; 31. Mounting assembly; 3101. First square passage; 3102. Mounting bolt; 3103. Mounting plate; 3104. Gasket; 32. Arc plate; 33. Threaded rod; 34. Connecting plate; 35. Operating block; 36. Ring; 37. Extension plate; 38. Fixing plate; 39. Stabilizing assembly; 391. Stabilizing plate; 392. Round rod; 310. Anti-sliding block; 311. Reinforcing plate; 4. Blocking device; 41. Square plate; 42. Spring; 43. Telescopic rod; 44. L-shaped plate; 45. Shielding plate; 46. Second square passage. DETAILED DESCRIPTION

[0039] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Figures 1 to 4 The fixture for titanium alloy special-shaped structural parts and the method of using the fixture are shown, comprising a placement block 1, a plurality of pressing plates 2 are provided on one side of the placement block 1, a fixing device 3 is provided on one side of the placement block 1, and the fixing device 3 fixes the plurality of pressing plates 2 simultaneously through a plurality of fixing plates 38. When processing titanium alloy special-shaped structural parts, the special-shaped structural parts are placed in the center area of ​​the placement block 1 of the fixture, and then the plurality of pressing plates 2 on the placement block 1 are rotated, and then contact and extrude with the surface of the special-shaped structural parts, and then the fixing device 3 is used to fix the positions of the plurality of pressing plates 2 simultaneously, and then the clamping and fixing of the special-shaped structural parts are completed.

[0042] Figures 1 to 4The fixing device 3 shown includes an installation component 31, an arc plate 32, a threaded rod 33, a connecting plate 34, an operating block 35, a ring 36, an extension plate 37 and a fixed plate 38. The installation component 31 is arranged on one side of the placement block 1 to install the arc plate 32 on the side of the placement block 1 close to the pressure plate 2. The operating block 35 drives the threaded rod 33 to rotate on the surface of the arc plate 32. The threaded rod 33 drives the connecting plate 34 and the ring 36 arranged on one side of the connecting plate 34 to move. The ring 36 is used to set the fixing plate 38 through the extension plate 37, and drives the fixing plate 38 to move. Before using the pressure plate 2, the arc plate 32 is fixed to the side of the placement block 1 close to the pressure plate 2 through the installation component 31. Then, when the pressure plate 2 contacts and extrude the surface of the special-shaped structural part, the operating block 35 is rotated to make the threaded rod 33 fixed on one side of the operating block 35 rotate on the side of the arc plate 32. Then the threaded rod 33 drives the connecting plate 34 with the surface thread connection to move downward. Then the circular ring 36 fixed on one side of the connecting plate 34 drives the fixing plate 38 fixed on one side of the extension plate 37 to move downward through the extension plate 37 fixed on one side. Then the fixing plate 38 is fixed to the pressure plate 2 to complete the fixation of the position of the pressure plate 2. Then, the position fixation of the titanium alloy special-shaped structural part on the surface of the fixture is quickly completed. By using the fixing device 3, multiple pressure plates 2 can be fixed at the same time, reducing the operating steps when fixing the pressure plate 2, avoiding the need for the pressure plate 2 to be fixed separately, which then leads to more operating steps, thereby improving the efficiency of the fixture.

[0043] Figures 1 to 4 The mounting assembly 31 shown includes a first square tube 3101, a mounting bolt 3102, a mounting plate 3103 and a gasket 3104. The first square tube 3101 is arranged on one side of the placement block 1. The mounting bolt 3102 passes through the gasket 3104 and the first square tube 3101 to be fixed to the mounting plate 3103 inside the first square tube 3101. The mounting plate 3103 is arranged on one side of the arc plate 32. When fixing the position of the arc plate 32, the arc plate 32 is moved so that the mounting plate 3103 fixed on one side of the arc plate 32 is inserted into the first square tube 3101, and then the gasket 3104 is placed on one side of the first square tube 3101. Then, the mounting bolt 3102 is rotated so that the mounting bolt 3102 passes through the gasket 3104 and the first square tube 3101, and then is threadedly fixed to the mounting plate 3103, and the mounting bolt 3102 abuts against the gasket 3104, and then the position of the arc plate 32 is fixed.

[0044] Figures 1 to 4The circular ring 36 shown is provided with a stabilizing assembly 39 on the side away from the connecting plate 34. The stabilizing assembly 39 includes a stabilizing plate 391 and a round rod 392. The stabilizing rod is arranged on the side of the circular ring 36 away from the connecting plate 34. The round rod 392 is arranged on the side of the arc plate 32 away from the threaded rod 33. The circular ring 36 moves inside the stabilizing plate 391. The round rod 392 fixed on one side of the arc plate 32 slides inside the stabilizing plate 391 fixed on one side of the circular ring 36, and then the trajectory of the circular ring 36 moving up and down is restricted, so that the circular ring 36 moves more stably.

[0045] Figures 1 to 4 A plurality of anti-slip blocks 310 are provided on one side of the operation block 35, and the plurality of anti-slip blocks 310 increase the surface friction of the operation block 35. By fixing a plurality of anti-slip blocks 310 on one side of the operation block 35, the friction between the operator and the operation block 35 is increased, so that the operator can more easily turn the anti-slip blocks 310. A reinforcing plate 311 is provided on one side of the extension plate 37 close to the fixed plate 38, and the reinforcing plate 311 increases the connection strength between the extension plate 37 and the fixed plate 38. The two ends of the reinforcing plate 311 are fixed to the extension plate 37 and the fixed plate 38 to increase the connection strength between the extension plate 37 and the fixed plate 38, so as to prevent the fixed plate 38 and the extension plate 37 from being easily deformed by force.

[0046] Figures 1 to 4 Blocking devices 4 are provided on both sides of the circular ring 36 shown, and the blocking device 4 includes a square plate 41, a spring 42, a telescopic rod 43, an L-shaped plate 44 and a baffle plate 45. The square plate 41 is arranged on one side of the circular ring 36, the spring 42 and the telescopic rod 43 are arranged on the side of the square plate 41 away from the circular ring 36, and the telescopic rod 43 is inside the spring 42 to limit the spring 42, the L-shaped plate 44 is arranged on the side of the spring 42 and the telescopic rod 43 away from the square plate 41, and the baffle plate 45 is arranged on the side of the L-shaped plate 44 away from the spring 42. When the circular ring 36 approaches the placement block 1, the circular ring 36 drives the square plate 41 fixed on one side to move downward, and then the square plate 41 drives the spring 42 and the telescopic rod 43 fixed on one side to deform, but the L-shaped plate 44 and the baffle plate 45 fixed on one side of the spring 42 and the telescopic rod 43 do not change their positions, and the baffle plate 45 blocks the periphery of the titanium alloy special-shaped structural parts to prevent debris generated during reinforcement from escaping from the fixture. When the circular ring 36 is reset, it will drive the spring 42 and the telescopic rod 43 to reset through the square plate 41, and then the L-shaped plate 44 and the baffle plate 45 will not be moved upward, and after the baffle plate 45 is forced to move upward, it can be quickly reset by the spring 42. By using the blocking device 4, the debris generated during the processing of the titanium alloy special-shaped structural parts can be blocked to prevent the debris from scattering everywhere and affecting the subsequent collection and processing of the debris.

[0047] Figures 1 to 4A second square hole 46 is provided on one side of the square plate 41, and the second square hole 46 restricts the shape of the shielding plate 45. By fixing the second square hole 46 on one side of the square plate 41, the second square hole 46 extends the shielding plate 45 to move, and restricts the shape of the shielding plate 45, so as to avoid deformation of the shielding plate 45 due to force.

[0048] Working principle: When processing titanium alloy special-shaped structural parts, the special-shaped structural parts will be placed in the central area of ​​the placement block 1 of the fixture, and then the multiple pressure plates 2 on the placement block 1 will be rotated, and then contact and extrude with the surface of the special-shaped structural parts, and then the fixing device 3 will be used to fix the position of multiple pressure plates 2 at the same time, and then the clamping and fixing of the special-shaped structural parts will be completed. Before using the pressing plate 2, move the arc plate 32 so that the mounting plate 3103 fixed on one side of the arc plate 32 is inserted into the first square tube 3101, and then put the gasket 3104 on one side of the first square tube 3101, and then rotate the mounting bolt 3102 so that the mounting bolt 3102 passes through the gasket 3104 and the first square tube 3101, and then is threadedly fixed with the mounting plate 3103, and the mounting bolt 3102 abuts against the gasket 3104, and then the position of the arc plate 32 is fixed. Then, when the pressing plate 2 is in contact with and extruded on the surface of the special-shaped structural part, rotate the operating block 35 so that the threaded rod 33 fixed on one side of the operating block 35 rotates on one side of the arc plate 32, and then the threaded rod 33 drives the connecting plate 34 threadedly connected on the surface to move downward, and then the connecting plate 34 on one side is The fixed ring 36 drives the fixed plate 38 fixed on one side of the extension plate 37 to move downward through the extension plate 37 fixed on one side. At this time, the round rod 392 fixed on one side of the arc plate 32 slides inside the stabilizing plate 391 fixed on one side of the ring 36 to limit the trajectory of the up and down movement of the ring 36, so that the ring 36 can move more stably. Then the fixed plate 38 is abutted and fixed with the pressure plate 2, and the position of the pressure plate 2 is fixed. Then the position of the titanium alloy special-shaped structural parts on the surface of the fixture is quickly fixed. By using the fixing device 3, multiple pressure plates 2 can be fixed at the same time, reducing the operating steps when fixing the pressure plate 2, avoiding the need to fix the pressure plate 2 separately, and then resulting in more operating steps. The use efficiency of the fixture can be improved.

[0049] When the circular ring 36 approaches the placement block 1, the circular ring 36 drives the square plate 41 fixed on one side to move downward, and then the square plate 41 drives the spring 42 and the telescopic rod 43 fixed on one side to deform, but the L-shaped plate 44 and the baffle plate 45 fixed on one side of the spring 42 and the telescopic rod 43 do not change their positions, and the baffle plate 45 blocks the periphery of the titanium alloy special-shaped structural parts to prevent debris generated during reinforcement from escaping from the fixture. When the circular ring 36 is reset, it will drive the spring 42 and the telescopic rod 43 to reset through the square plate 41, and then the L-shaped plate 44 and the baffle plate 45 will not be moved upward, and after the baffle plate 45 is forced to move upward, it can be quickly reset by the spring 42. By using the blocking device 4, the debris generated during the processing of the titanium alloy special-shaped structural parts can be blocked to prevent the debris from scattering everywhere and affecting the subsequent collection and processing of the debris.

[0050] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A fixture for titanium alloy special-shaped structural parts, characterized in that: It comprises a placement block (1), one side of which is provided with a plurality of pressing plates (2), one side of which is provided with a fixing device (3), and the fixing device (3) simultaneously fixes the plurality of pressing plates (2) via a plurality of fixing plates (38).

2. A fixture for titanium alloy special-shaped structural parts according to claim 1, characterized in that: The fixing device (3) comprises a mounting assembly (31), an arc plate (32), a threaded rod (33), a connecting plate (34), an operating block (35), a circular ring (36), an extension plate (37) and a fixing plate (38). The mounting assembly (31) is arranged on one side of the placement block (1) to mount the arc plate (32) on the side of the placement block (1) close to the pressure plate (2). The operating block (35) drives the threaded rod (33) to rotate on the surface of the arc plate (32). The threaded rod (33) drives the connecting plate (34) and the circular ring (36) arranged on one side of the connecting plate (34) to move. The circular ring (36) is arranged on the fixing plate (38) through the extension plate (37) and drives the fixing plate (38) to move.

3. A fixture for titanium alloy special-shaped structural parts according to claim 2, characterized in that: The mounting assembly (31) comprises a first square tube (3101), a mounting bolt (3102), a mounting plate (3103) and a gasket (3104); the first square tube (3101) is arranged on one side of the placement block (1); the mounting bolt (3102) passes through the gasket (3104) and the first square tube (3101) to be fixed to the mounting plate (3103) inside the first square tube (3101); and the mounting plate (3103) is arranged on one side of the arc plate (32).

4. A fixture for titanium alloy special-shaped structural parts according to claim 3, characterized in that: A stabilizing assembly (39) is provided on the side of the circular ring (36) away from the connecting plate (34), and the stabilizing assembly (39) comprises a stabilizing plate (391) and a round rod (392). The stabilizing rod is provided on the side of the circular ring (36) away from the connecting plate (34), and the round rod (392) is provided on the side of the arc plate (32) away from the threaded rod (33). The circular ring (36) moves inside the stabilizing plate (391).

5. A fixture for titanium alloy special-shaped structural parts according to claim 4, characterized in that: A plurality of anti-sliding blocks (310) are provided on one side of the operating block (35), and the plurality of anti-sliding blocks (310) increase the surface friction of the operating block (35).

6. A fixture for titanium alloy special-shaped structural parts according to claim 5, characterized in that: A reinforcing plate (311) is provided on one side of the extension plate (37) close to the fixing plate (38), and the reinforcing plate (311) improves the connection strength between the extension plate (37) and the fixing plate (38).

7. A fixture for titanium alloy special-shaped structural parts according to claim 6, characterized in that: Blocking devices (4) are provided on both sides of the circular ring (36), and the blocking device (4) comprises a square plate (41), a spring (42), a telescopic rod (43), an L-shaped plate (44) and a shielding plate (45). The square plate (41) is arranged on one side of the circular ring (36), the spring (42) and the telescopic rod (43) are arranged on a side of the square plate (41) away from the circular ring (36), and the telescopic rod (43) is located inside the spring (42) to limit the spring (42).

8. A fixture for titanium alloy special-shaped structural parts according to claim 7, characterized in that: The L-shaped plate (44) is arranged on a side of the spring (42) and the telescopic rod (43) away from the square plate (41), and the shielding plate (45) is arranged on a side of the L-shaped plate (44) away from the spring (42).

9. A fixture for titanium alloy special-shaped structural parts according to claim 8, characterized in that: A second square hole (46) is provided on one side of the square plate (41), and the second square hole (46) restricts the shape of the shielding plate (45).

10. A method for using a fixture for titanium alloy special-shaped structural parts, characterized in that: The fixture for titanium alloy special-shaped structural parts according to any one of claims 1 to 9 is used, comprising the following steps: S1. Place the special-shaped structural part in the center area of ​​the placement block (1) of the fixture; S2, rotating a plurality of pressing plates (2); S3, restricting the trajectory of the ring (36) moving up and down, so that the ring (36) moves more stably; S4, the fixing plate (38) is abutted and fixed against the pressing plate (2), and the position of the pressing plate (2) is fixed; S5, pulling the shielding plate (45) to shield the periphery of the titanium alloy special-shaped structural part.

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