Clamping fixture for machining mechanical sealing element

Abstract

The utility model belongs to the technical field of clamping fixtures, and particularly relates to a clamping fixture for machining a mechanical sealing element, which comprises a main platform. The middle part of the main platform is fixedly connected with a fixed platform surface; a pin hole is formed in the middle of the fixed table board; first sliding grooves are formed in the two sides of the fixed table top. A clamping plate is slidably connected into the first sliding groove. A screw rod is rotationally connected to the middle of the clamping plate; the end part of the screw rod is fixedly connected with a rotating handle; a fixing plate is fixedly connected to the middle of the clamping plate; in the step, clamping plates at the two ends are moved, so that when the mechanical sealing element is machined, the mechanical sealing element can correspond to the sizes of different mechanical sealing elements, the flexibility and adaptability of the mechanical sealing element in the machining process are improved, and therefore the production efficiency of the mechanical sealing element is improved, and the time for adjusting the clamp is shortened; and the fixing pins are inserted into the pin holes, so that the secondary stability of the mechanical sealing element in the clamping process is improved, and the risk that the mechanical sealing element slides off is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping fixtures, in particular to a clamping fixture for machining mechanical seals. Background Art

[0002] In daily machining processes, when mechanical seals need to be clamped and fixed, clamping fixtures play a vital role. With the development of industrial machinery, the design and manufacture of clamping fixtures have been vigorously developed.

[0003] When in use, place the mechanical seal in the middle of the fixture, then adjust the fixture to a suitable position according to the size of the mechanical seal, and then fix the mechanical seal on the processing equipment through the fixture. After the processing is completed, remove the fixture and clean it.

[0004] Most of the existing clamps can only clamp mechanical seals of the same size during the clamping process. When clamping mechanical seals of other sizes, the mechanical seals may be larger or smaller in size, resulting in loose clamping and shaking, which will waste time in readjustment and reduce production efficiency. At the same time, the existing clamps rarely have the function of re-fixing the limit after fixing. Therefore, a clamping fixture for mechanical seal processing is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model provides a clamping fixture for machining mechanical seals.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a clamping fixture for machining mechanical seals, comprising a main platform; a fixed table top is fixedly connected in the middle of the main platform; a pin hole is provided in the middle of the fixed table top; first sliding grooves are provided on both sides of the fixed table top; a clamping plate is slidably connected inside the first sliding groove; a spiral rod is rotatably connected in the middle of the clamping plate; a rotating handle is fixedly connected to the end of the spiral rod; a fixed plate is fixedly connected in the middle of the clamping plate; a fixing pin is slidably connected inside the fixed plate; and a plastic plate is fixedly connected to one end of the clamping plate away from the fixed table top.

[0007] Preferably, a connecting rod is rotatably connected to the middle part of the splint; a double-headed rod is fixedly connected to the middle part of the connecting rod; an internal groove is opened in the middle part of both ends of the double-headed rod; a first transfer rod is hinged inside the internal groove; a second transfer rod is hinged to the end of the first transfer rod; and a plastic block is hinged to one end of the second transfer rod away from the first transfer rod.

[0008] Preferably, the outer wall of the main platform is fixedly connected to the first motor; the output end of the first motor is fixedly connected to a fixing rod; the fixing rod is fixedly connected to a rotating gear at one end away from the first motor; the fixing rod is rotatably connected to the main platform; a second sliding groove is provided in the middle of the main platform near the fixed table top; a second limiting plate is slidably connected inside the second sliding groove; the first limiting plate is slidably connected inside the second sliding groove; an upper rack surface is provided on the upper side wall of the second limiting plate near one end of the rotating gear; a lower rack surface is provided on the lower side wall of the first limiting plate near one end of the rotating gear; the rotating gear is meshed with the upper rack surface and the lower rack surface.

[0009] Preferably, a lifting base is fixedly connected to the middle of the main platform; a second motor is fixedly connected to the side of the lifting base; a rotating gear rod is fixedly connected to the output end of the second motor; the rotating gear rod is slidably connected to the lifting base, and a rack column is meshed with the middle of the rotating gear rod; the top of the rack column is fixedly connected to the lifting platform; a limiting ring is fixedly connected to the inner side wall of the lifting base; and the lifting platform is slidably connected to the inside of the lifting base.

[0010] Preferably, an opening slot is provided inside the lifting platform; a fixed round rod is fixedly connected inside the opening slot; a roller is slidably connected to the middle of the fixed round rod; and a spring plate is fixedly connected to the inner side wall of the opening slot.

[0011] Preferably, a hinge is fixedly connected to the middle of the main platform; one end of the hinge is fixedly connected to a bellows; and an outer side wall of the bellows is fixedly connected to a wind deflector.

[0012] Preferably, a slot is provided inside the main platform; a fixing column is fixedly connected inside the main platform; a rotating rod is rotatably connected to the middle of the fixing column; and a fixing nail is slidably connected to the middle of the rotating rod.

[0013] The utility model is beneficial in that:

[0014] 1. The utility model discloses a clamping fixture for machining mechanical seals. In this step, the clamping plates at both ends are moved so that the mechanical seals can correspond to different sizes during machining, thereby increasing the flexibility and adaptability of the mechanical seals during machining, thereby improving the production efficiency of the mechanical seals and reducing the time for adjusting the fixture. At the same time, after the clamping plates are moved, the fixing pins are inserted into the pin holes, thereby improving the secondary stability during the clamping process of the mechanical seals and reducing the risk of the mechanical seals slipping.

[0015] 2. The utility model describes a clamping fixture for machining mechanical seals. In this step, the contact area of ​​the mechanical seal is reduced during the process of clamping the mechanical seal with the plastic block. The mutual cooperation of the first transfer rod and the second transfer rod reduces the pressure concentration of the plastic block on the mechanical seal, thereby increasing the clamping effect of the mechanical seal to be more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a three-dimensional cross-sectional structural diagram of the lifting base in the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the bellows body in the utility model;

[0020] Figure 4 for Figure 1 Enlarged view of point A.

[0021] In the figure: 1, main platform; 11, fixed table; 12, clamping plate; 13, screw rod; 14, rotating handle; 15, pin hole; 16, fixed pin; 17, first sliding groove; 18, plastic plate; 110, fixed plate; 2, connecting rod; 21, double-headed rod; 22, inner groove; 23, first transfer rod; 24, second transfer rod; 25, plastic block; 3, first motor; 31, fixed rod; 32, rotating gear; 33, first limit plate ; 34. Second limit plate; 35. Second sliding groove; 36. Upper rack surface; 37. Lower rack surface; 4. Second motor; 41. Lifting base; 42. Rotating gear rod; 43. Rack column; 44. Lifting platform; 45. Limit ring; 5. Slot; 51. Roller; 52. Spring plate; 53. Fixed round rod; 6. Bellows; 61. Wind deflector; 63. Hinge; 7. Fixed column; 71. Rotating rod; 72. Fixed nail; 73. Notch. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1 , Figure 4As shown, a clamping fixture for machining mechanical seals comprises a main platform 1; a fixed table 11 is fixedly connected in the middle of the main platform 1; a pin hole 15 is provided in the middle of the fixed table 11; first sliding grooves 17 are provided on both sides of the fixed table 11; a clamping plate 12 is slidably connected inside the first sliding groove 17; a spiral rod 13 is rotatably connected in the middle of the clamping plate 12; a rotating handle 14 is fixedly connected to the end of the spiral rod 13; a fixed plate 110 is fixedly connected in the middle of the clamping plate 12; a fixing pin 16 is slidably connected inside the fixing plate 110; a plastic plate 18 is fixedly connected to one end of the clamping plate 12 away from the fixed table 11; when working, the mechanical seal is manually placed in the middle of a pair of plastic plates 18, and the rotating handle 14 is turned to allow the clamping plates 12 on both sides to pass through The two mechanical seals are slid close to each other in the first sliding groove 17 opened by the fixed table 11. When the clamps 12 at both ends are close to each other, the mechanical seal is clamped and fixed by the plastic plate 18. When the mechanical seal is fixed by the plastic plate 18, the fixing pin 16 is inserted into the hole opened in the pin hole 15 through the fixing plate 110 to limit the position; in this step, the clamps 12 at both ends are moved so that the mechanical seal can correspond to different mechanical seal sizes during processing, thereby increasing the flexibility and adaptability of the mechanical seal during processing, thereby improving the production efficiency of the mechanical seal and reducing the time for adjusting the fixture. At the same time, after moving the clamp 12, the fixing pin 16 is inserted into the pin hole 15, which improves the secondary stability during the clamping process of the mechanical seal and reduces the risk of the mechanical seal slipping.

[0024] like Figure 1 As shown, the middle of the clamping plate 12 is rotatably connected with a connecting rod 2; a double-headed rod 21 is fixedly connected to the middle of the connecting rod 2; an inner groove 22 is opened in the middle of both ends of the double-headed rod 21; a first transfer rod 23 is hinged inside the inner groove 22; a second transfer rod 24 is hinged at the end of the first transfer rod 23; a plastic block 25 is hinged at one end of the second transfer rod 24 away from the first transfer rod 23; when working, when the plastic plate 18 clamps the mechanical seal, the two ends of the double-headed rods 21 on both sides are close to the side of the mechanical seal, and the plastic block 25 is hinged to the end of the second transfer rod 24 away from the first transfer rod 23. The material block 25 is attached to the outer wall of the mechanical seal. When the plastic block 25 contacts the outer wall of the mechanical seal and there is no space, the two first transfer rods 23 move closer to the inner groove 22, and the two second transfer rods 24 move away from the outside. In this step, the contact area of ​​the mechanical seal is reduced in the process of clamping the mechanical seal by the plastic block 25. Through the mutual cooperation of the first transfer rod 23 and the second transfer rod 24, the pressure concentration of the plastic block 25 on the mechanical seal is reduced, and a more uniform clamping effect is achieved when clamping the mechanical seal.

[0025] like Figure 1As shown, the outer wall of the main platform 1 is fixedly connected to the first motor 3; the output end of the first motor 3 is fixedly connected to a fixing rod 31; the fixing rod 31 is fixedly connected to a rotating gear 32 at one end away from the first motor 3; the fixing rod 31 is rotatably connected to the main platform 1; a second sliding groove 35 is provided in the middle of the main platform 1 near the fixed table top 11; a second limiting plate 34 is slidably connected inside the second sliding groove 35; a first limiting plate 33 is slidably connected inside the second sliding groove 35; an upper rack surface 36 is provided on the upper side wall of the second limiting plate 34 near one end of the rotating gear 32; a lower rack surface 37 is provided on the lower side wall of the first limiting plate 33 near one end of the rotating gear 32; the rotating gear 32 is meshed with the upper rack surface 36 and the lower rack surface 37; when working, through Start the first motor 3, and the fixed rod 31 is driven by the first motor 3 to rotate. The rotation of the fixed rod 31 drives the rotating gear 32 to rotate. When the rotating gear 32 rotates, the upper rack surface 36 opened on the upper end surface of the top cross bar of the second limit plate 34 and the lower rack surface 37 opened on the lower end surface of the cross bar of the first limit plate 33 engage with the rotating gear 32, driving the first limit plate 33 and the second limit plate 34 to clamp each other in the second sliding groove 35 opened at the bottom end of the main platform 1. In this step, when processing mechanical seals, this structure can clamp the longer top part of some longer mechanical seals, thereby reducing the unstable clamping caused by the excessive length of the mechanical seals during clamping, increasing the stability during clamping, and enhancing the safety of the mechanical seals during processing.

[0026] like Figure 1-2As shown, a lifting base 41 is fixedly connected to the middle of the main platform 1; a second motor 4 is fixedly connected to the side of the lifting base 41; a rotating gear rod 42 is fixedly connected to the output end of the second motor 4; the rotating gear rod 42 is slidably connected to the lifting base 41, and a rack column 43 is meshed in the middle of the rotating gear rod 42; a lifting platform 44 is fixedly connected to the top of the rack column 43; a limiting ring 45 is fixedly connected to the inner side wall of the lifting base 41; the lifting platform 44 is slidably connected inside the lifting base 41; when working, some larger and heavier mechanical seals need to be processed, and it is very troublesome to adjust them up and down. At this time, the top and bottom ends of the mechanical seals are respectively placed on a pair of lifting platforms 44, and then the second The motor 4 drives the internal rotating gear rod 42 to rotate through the second motor 4. When the rotating gear rod 42 rotates, a pair of rack columns 43 meshing with it on the side drive the lifting platform 44 on its top to move upward, so that the mechanical seal can adjust the height up and down. At the same time, after it drops to the top, the limiting ring 45 at the bottom limits the lifting platform 44. This step can adjust the height back and forth, thereby reducing the trouble of replacing the clamp again when processing workpieces of different sizes or shapes, thereby improving operational flexibility and work efficiency. At the same time, the height can be adjusted according to the size of the mechanical seal, which increases the possibility of the clamp being able to clamp the mechanical seal and fit it with its side wall, thereby improving the stability of clamping.

[0027] like Figure 1-2 As shown, a slot 5 is provided inside the lifting platform 44; a fixed round rod 53 is fixed inside the slot 5; a roller 51 is slidably connected to the middle of the fixed round rod 53; a spring plate 52 is fixed to the inner wall of the slot 5; when working, the top and bottom ends of some longer and heavier mechanical seals are placed above a pair of rollers 51 respectively. When it is necessary to move forward and backward for processing, the mechanical seals can be moved forward and backward by rotating the rollers 51. At the same time, the spring plates 52 at both ends block the friction of the rollers 51 on the inner wall of the slot 5 when the rollers 51 rotate, and buffer the rollers 51. In this step, the position of the mechanical seal can be adjusted according to the requirements of the mechanical seal processing through the rolling of the rollers 51, which increases the stability and accuracy when clamping the mechanical seal. At the same time, through this structure, the time for manual adjustment to find the clamping point is reduced, greatly improving the production efficiency.

[0028] like Figure 1 , Figure 3As shown, a hinge 63 is fixedly connected to the middle of the main platform 1; a bellows 6 is fixedly connected to one end of the hinge 63; a wind deflector 61 is fixedly connected to the outer wall of the bellows 6; when working, the bellows 6 is started so that the bellows 6 generates wind force to the outside, and at the same time, the wind force is diverted through the wind deflector 61 on the side of the bellows 6, and the hinge 63 on the top of the bellows 6 allows the hinge 63 to be moved to adjust the blowing angle when fixed to the main platform 1. In this step, the mechanical seal may be heated during the processing. The blowing of the mechanical seal by the bellows 6 reduces the occurrence of poor processing quality caused by the heat of the mechanical seal during processing. At the same time, the bellows 6 can be adjusted to meet the needs of different processing positions, thereby increasing the blowing effect.

[0029] like Figure 1 , Figure 4 As shown, a slot 73 is provided inside the main platform 1; a fixing column 7 is fixedly connected inside the main platform 1; a rotating rod 71 is rotatably connected to the middle of the fixing column 7; a fixing nail 72 is slidably connected to the middle of the rotating rod 71; when working, the rotating rod 71 is taken out from the slot 73, and after being taken out, the fixing nail 72 passes through the rotating rod 71 and then fixes the fixing nail 72 on the ground. This step increases the stability of the mechanical seal during the processing and reduces the occurrence of shaking by fixing the fixing nail 72 around the equipment.

[0030] Working principle: during operation, the mechanical seal is manually placed in the middle of a pair of plastic plates 18, and the rotating handle 14 is turned to allow the clamping plates 12 on both sides to slide close to each other in the first sliding groove 17 opened by the fixed table 11. When the clamping plates 12 at both ends are close to each other, the mechanical seal is clamped and fixed by the plastic plates 18. When the mechanical seal is fixed by the plastic plates 18, the fixing pin 16 is inserted into the hole opened in the pin hole 15 through the fixing plate 110 to limit the position; in this step, by moving the clamping plates 12 at both ends, the mechanical seal can correspond to different mechanical seal sizes during processing, which increases the flexibility and adaptability of the mechanical seal during processing, thereby improving the production efficiency of the mechanical seal and reducing the time for adjusting the fixture. After the clamping plate 12 is moved, the fixing pin 16 is inserted into the pin hole 15, which improves the secondary stability in the clamping process of the mechanical seal and reduces the risk of the mechanical seal slipping. During operation, when the plastic plate 18 clamps the mechanical seal, the two ends of the double-headed rods 21 on both sides are close to the side of the mechanical seal at the same time, and are fitted to the outer wall of the mechanical seal through the plastic block 25. When the plastic block 25 contacts the outer wall of the mechanical seal and there is no space, the two first transfer rods 23 move closer to the inner groove 22, and the two second transfer rods 24 move away from the outside. In this step, the contact area of ​​the mechanical seal is reduced in the process of clamping the mechanical seal by the plastic block 25, and the mutual cooperation between the first transfer rod 23 and the second transfer rod 24 reduces the impact of the plastic block 25 on the mechanical seal. The pressure of the mechanical seal is concentrated, which increases the clamping effect of the mechanical seal when it is clamped, and the clamping effect is more uniform. When working, by starting the first motor 3, the fixed rod 31 is driven by the first motor 3 to rotate, and the fixed rod 31 drives the rotating gear 32 to rotate while rotating. When the rotating gear 32 rotates, the upper rack surface 36 opened on the upper end surface of the top cross bar of the second limiting plate 34 and the lower rack surface 37 opened on the lower end surface of the cross bar of the first limiting plate 33 engage with the rotating gear 32, driving the first limiting plate 33 and the second limiting plate 34 to clamp each other in the second sliding groove 35 opened at the bottom end of the main platform 1. This step can clamp the longer top part of some longer mechanical seals when processing mechanical seals through this structure, reducing the clamping time. , because the mechanical seal is too long, resulting in unstable clamping, the stability during clamping is increased, and the safety of the mechanical seal during processing is strengthened. During work, when some larger and heavier mechanical seals need to be processed, it is very troublesome to adjust up and down. At this time, the top and bottom ends of the mechanical seal are respectively placed on a pair of lifting platforms 44, and then the second motor 4 is started. The internal rotating gear rod 42 is driven to rotate by the second motor 4. When the rotating gear rod 42 rotates, a pair of rack columns 43 engaged with it on the side drive the lifting platform 44 on its top to move upward, so that the height of the mechanical seal can be adjusted up and down. At the same time, after it drops to the top, the limit ring 45 at the bottom limits the lifting platform 44. This step can adjust the height back and forth.The invention reduces the trouble of replacing the clamp again when processing workpieces of different sizes or shapes, improves the operational flexibility and work efficiency, and at the same time, can adjust the height according to the size of the mechanical seal, increases the possibility that the clamp can clamp the mechanical seal and its side wall, thereby improving the clamping stability. When working, the top and bottom ends of some longer and heavier mechanical seals are respectively placed on a pair of rollers 51. When it is necessary to move forward and backward for processing, the mechanical seal can be driven to move forward and backward by rotating the rollers 51. At the same time, the spring plates 52 at both ends block the friction of the rollers 51 on the inner wall of the groove 5 when the rollers 51 rotate, so as to buffer the rollers 51. In this step, the position of the mechanical seal can be adjusted according to the needs of mechanical seal processing through the rolling of the rollers 51, which increases the stability and accuracy when clamping the mechanical seal. At the same time, this structure reduces the need for manual operation. The time of finding the clamping point can be adjusted dynamically, which greatly improves the production efficiency. When working, the bellows 6 is started to generate wind force to the outside. At the same time, the wind force is guided through the wind direction plate 61 on the side of the bellows 6. The hinge 63 on the top of the bellows 6 can be moved to adjust the blowing angle when it is fixed to the main platform 1. In this step, the mechanical seal may be heated during the processing. The blowing of the mechanical seal by the bellows 6 reduces the poor processing quality caused by the heat of the mechanical seal during processing. At the same time, the bellows 6 can be adjusted to meet the needs of different processing positions and increase the blowing effect. When working, the rotating rod 71 is taken out from the slot 73, and after it is taken out, the fixing nail 72 is passed through the rotating rod 71 and fixed to the ground. This step is fixed around the equipment, and the fixing nail 72 increases the stability of the mechanical seal during the processing and reduces the shaking.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A clamping fixture for machining mechanical seals, comprising a main platform (1); characterized in that: A fixed tabletop (11) is fixedly connected to the middle of the main platform (1); a pin hole (15) is provided in the middle of the fixed tabletop (11); first sliding grooves (17) are provided on both sides of the fixed tabletop (11); a clamping plate (12) is slidably connected inside the first sliding groove (17); a spiral rod (13) is rotatably connected to the middle of the clamping plate (12); a rotating handle (14) is fixedly connected to the end of the spiral rod (13); a fixed plate (110) is fixedly connected to the middle of the clamping plate (12); a fixing pin (16) is slidably connected inside the fixing plate (110); and a plastic plate (18) is fixedly connected to one end of the clamping plate (12) away from the fixed tabletop (11).

2. The clamping fixture for machining mechanical seals according to claim 1, characterized in that: The middle of the clamping plate (12) is rotatably connected to a connecting rod (2); the middle of the connecting rod (2) is fixedly connected to a double-headed rod (21); the middle of both ends of the double-headed rod (21) is provided with an inner groove (22); a first transfer rod (23) is hinged inside the inner groove (22); a second transfer rod (24) is hinged at the end of the first transfer rod (23); and a plastic block (25) is hinged at one end of the second transfer rod (24) away from the first transfer rod (23).

3. The clamping fixture for machining mechanical seals according to claim 1, characterized in that: The outer wall of the main platform (1) is fixedly connected to a first motor (3); the output end of the first motor (3) is fixedly connected to a fixing rod (31); the fixing rod (31) is fixedly connected to a rotating gear (32) at one end away from the first motor (3); the fixing rod (31) is rotatably connected to the main platform (1); a second sliding groove (35) is provided in the middle of the main platform (1) near the fixed table surface (11); a second limiting plate (34) is slidably connected inside the second sliding groove (35); a first limiting plate (33) is slidably connected inside the second sliding groove (35); an upper rack surface (36) is provided on the upper side wall of one end of the second limiting plate (34) near the rotating gear (32); a lower rack surface (37) is provided on the lower side wall of one end of the first limiting plate (33) near the rotating gear (32); the rotating gear (32) is meshed with the upper rack surface (36) and the lower rack surface (37).

4. The clamping fixture for machining mechanical seals according to claim 1, characterized in that: A lifting base (41) is fixedly connected to the middle of the main platform (1); a second motor (4) is fixedly connected to the side of the lifting base (41); a rotating gear rod (42) is fixedly connected to the output end of the second motor (4); the rotating gear rod (42) is slidably connected to the lifting base (41), and a rack column (43) is meshed in the middle of the rotating gear rod (42); a lifting platform (44) is fixedly connected to the top of the rack column (43); a limiting ring (45) is fixedly connected to the inner side wall of the lifting base (41); and the lifting platform (44) is slidably connected inside the lifting base (41).

5. The clamping fixture for machining mechanical seals according to claim 4, characterized in that: The lifting platform (44) is provided with an opening slot (5) inside; a fixed round rod (53) is fixedly connected inside the opening slot (5); a roller (51) is slidably connected to the middle of the fixed round rod (53); and a spring plate (52) is fixedly connected to the inner wall of the opening slot (5).

6. The clamping fixture for machining mechanical seals according to claim 1, characterized in that: A hinge (63) is fixedly connected to the middle of the main platform (1); one end of the hinge (63) is fixedly connected to a wind box (6); and an outer side wall of the wind box (6) is fixedly connected to a wind deflector (61).

7. The clamping fixture for machining mechanical seals according to claim 1, characterized in that: A notch (73) is provided inside the main platform (1); a fixing column (7) is fixedly connected inside the main platform (1); a rotating rod (71) is rotatably connected to the middle of the fixing column (7); and a fixing nail (72) is slidably connected to the middle of the rotating rod (71).

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