A lifting clamp for casting an automobile flywheel housing and a method of using the same

Abstract

The application discloses a kind of hoisting clamps for automobile flywheel shell casting and its using method, it is related to the field of automobile flywheel shell casting technology, to solve the existing hoisting clamps for automobile flywheel shell casting, because position transformation angle adjustment precision is poor in hoisting process, cause high hoisting difficulty problem.The upper end of telescopic hydraulic motor is provided with hoisting clamp fixing plate, the output end of telescopic hydraulic motor is provided with hoisting clamp fixed block, the lower end of hoisting clamp fixed block is provided with bearing, the lower end of bearing is provided with angle adjusting device shell, the both sides of angle adjusting device shell are provided with hoisting clamp arm, the inside of each hoisting clamp arm is provided with hoisting clamp moving shaft, the lower end of each hoisting clamp moving shaft is provided with hoisting clamp support rod, the lower end of each hoisting clamp support rod is provided with main clamp plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile flywheel housing casting, in particular to a hoisting clamp for automobile flywheel housing casting and a using method thereof. BACKGROUND

[0002] The automobile flywheel housing is used for installing the housing structure of the transmission driving mechanism and its accessories. In order to reduce the wear and power loss caused by internal friction, the lubricating oil must be injected into the housing to lubricate the working surfaces of each gear pair, shaft and bearing and other parts by splash lubrication. Therefore, the housing has an oil filler on one side and a drain plug at the bottom, and the oil level is controlled by the position of the oil filler. The first shaft always meshing gear and the three gears on the second shaft are drilled with radial oil holes, and the hub end face of the reverse intermediate gear and the intermediate shaft always meshing transmission gear is opened with a radial oil groove, so as to lubricate the needle bearing at the site. In order to prevent the lubricating oil from flowing into the clutch from the gap between the first shaft and the bearing cover and affecting its friction performance, an oil seal assembly is installed in the bearing cover, and the bearing cover hole has an oil return groove to prevent oil leakage. An oil seal assembly is installed in the rear bearing cover of the transmission. Sealing gaskets are installed at the joint surfaces of each bearing cover, rear cover, upper cover, front and rear housing, and sealing glue is applied to prevent oil leakage.

[0003] However, the existing hoisting clamp for automobile flywheel housing casting has the problem of high hoisting difficulty due to poor position transformation angle adjustment precision during hoisting. Therefore, it does not meet the existing needs, and for this purpose, the present application provides a hoisting clamp for automobile flywheel housing casting and a using method thereof. SUMMARY

[0004] The present application aims to provide a hoisting clamp for automobile flywheel housing casting and a using method thereof to solve the problem of high hoisting difficulty caused by poor position transformation angle adjustment precision during hoisting of the existing hoisting clamp for automobile flywheel housing casting.

[0005] In order to achieve the above object, the present application provides the following technical scheme: a lifting clamp for casting automobile flywheel shell, comprising a telescopic hydraulic motor, a lifting clamp fixing plate is arranged at the upper end of the telescopic hydraulic motor, and the lifting clamp fixing plate is threadedly connected with the telescopic hydraulic motor, a lifting clamp fixing block is arranged at the output end of the telescopic hydraulic motor, and the lifting clamp fixing block is welded with the telescopic hydraulic motor, a bearing is arranged at the lower end of the lifting clamp fixing block, and the bearing is bearing-connected with the lifting clamp fixing block, an angle adjusting device shell is arranged at the lower end of the bearing, and the angle adjusting device shell is connected with the bearing rotating shaft, lifting clamp arms are arranged at the two sides of the angle adjusting device shell, and the lifting clamp arms are threadedly connected with the angle adjusting device shell, a lifting clamp moving shaft is arranged in each lifting clamp arm, and the lifting clamp moving shaft is slidingly connected with the lifting clamp arm clamping groove, a lifting clamp supporting rod is arranged at the lower end of each lifting clamp moving shaft, and the lifting clamp supporting rod is welded with the lifting clamp moving shaft, a main clamp plate is arranged at the lower end of each lifting clamp supporting rod, and the main clamp plate is welded with the lifting clamp supporting rod, a clamp plate clamping bolt is arranged at one end of each main clamp plate, and the clamp plate clamping bolt is threadedly connected with the main clamp plate, and a secondary clamp plate is arranged at the lower end of each clamp plate clamping bolt, and the secondary clamp plate is threadedly connected with the clamp plate clamping bolt.

[0006] Preferably, a main shaft is arranged in the angle adjusting device shell, and the main shaft is welded with the bearing, a main shaft coil fixing frame is arranged on the outer wall of the main shaft, and the main shaft coil fixing frame is welded with the main shaft, an angle adjusting drive coil is arranged on the outer wall of the main shaft coil fixing frame, and the angle adjusting drive coil is adhesively connected with the main shaft coil fixing frame, magnetic pole fixing plates are arranged on the inner walls of the angle adjusting device shell, and the magnetic pole fixing plates are welded with the inner walls of the angle adjusting device shell, and a permanent magnet is arranged in each magnetic pole fixing plate, and the permanent magnet is welded with the magnetic pole fixing plate.

[0007] Preferably, an upper quick brake cover is arranged at the lower end of the angle adjusting device shell, and the quick brake cover is welded with the main shaft, an electromagnetic brake is arranged in the quick brake cover, and the electromagnetic brake is threadedly connected with the quick brake cover, a quick brake groove is arranged above the electromagnetic brake, and the quick brake groove is integrally formed with the angle adjusting device shell.

[0008] Preferably, an electromagnetic armature is arranged in each electromagnetic brake, and the electromagnetic armature is welded with the electromagnetic brake, a brake spring is arranged on the outer side of the electromagnetic armature, and the brake spring is welded with the inner wall of the electromagnetic brake, a brake block is arranged at the upper end of the brake spring, and the brake block is welded with the brake spring.

[0009] Preferably, the inside of each of the lifting clamp arms is provided with a moving shaft moving groove, and the moving shaft moving groove is integrally arranged with the lifting clamp arm, one end of the inside of each of the moving shaft moving grooves is provided with a moving shaft driving hydraulic motor, and the moving shaft driving hydraulic motor is threadedly connected with the moving shaft moving groove, and the output end of each of the moving shaft driving hydraulic motors is provided with a moving shaft hydraulic rod, and the two ends of the moving shaft hydraulic rod are respectively threadedly connected with the moving shaft driving hydraulic motor and the lifting clamp moving shaft.

[0010] Preferably, the lower side of the main clamp plate is provided with a clamp anti-skid plate, and the clamp anti-skid plate is adhesively connected with the main clamp plate, and the inside of each of the main clamp plates is provided with an embedded magnetic block, and the embedded magnetic block is welded with the main clamp plate.

[0011] Preferably, the inside of the brake block is provided with an armature groove, the armature groove is integrally arranged with the brake block, and the armature groove is magnetically connected with the electromagnetic armature.

[0012] Preferably, a method for using the lifting clamp for casting the automobile flywheel shell comprises the following steps:

[0013] Step one: first, the lower structure is elongated to the casting lifting position by starting the telescopic hydraulic motor, the moving shaft driving hydraulic motor in the inside of the lifting clamp arm drives the moving shaft hydraulic rod to be elongated, the elongated moving shaft hydraulic rod pushes the lifting clamp moving shaft, the lifting clamp moving shaft moves in the moving shaft moving groove, and the moving lifting clamp moving shaft drives the lifting clamp supporting rod connected therewith to move horizontally, so as to adjust the distance between the two main clamp plates to realize the clamping function of the automobile flywheel shell;

[0014] Step two: then the automobile flywheel shell is clamped by the auxiliary clamp plate, the automobile flywheel shell is clamped between the auxiliary clamp plate by using the clamp plate clamping bolt, or the automobile flywheel shell is placed above the embedded magnetic block in the main clamp plate according to the specification, the embedded magnetic block magnetically attracts the automobile flywheel shell to prevent it from falling, and at this time the placing and fixing process of the automobile flywheel shell is completed;

[0015] Step 3: After the car flywheel housing is fixed, when the position of the car flywheel housing needs to be adjusted, the angle adjustment drive coil inside the angle adjustment device housing is energized. The energized angle adjustment drive coil generates magnetic force, which, together with the permanent magnet on the magnetic pole fixing plate, creates electromagnetic force to do work. This causes the angle adjustment device housing to be pushed by the electromagnetic force of the angle adjustment drive coil on the main shaft coil fixing bracket to start rotating, thereby adjusting the angle of the angle adjustment device housing. When the angle is properly adjusted, the angle adjustment drive coil is de-energized and loses its magnetism, and the electromagnetic brake inside the quick brake cover is activated to brake with the quick brake groove. At this time, the electromagnetic armature inside the electromagnetic brake is de-energized, and the de-energized electromagnetic armature loses its magnetism. The brake block is bounced up by the brake spring, and the bounced brake block contacts the armature groove and rubs against it, causing the angle adjustment device housing to stop rotating and be positioned.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention, through the setting of the angle adjustment device housing and the quick-brake cover, allows the angle adjustment drive coil inside the angle adjustment device housing to be energized. The energized angle adjustment drive coil generates magnetic force, which interacts with the permanent magnet on the magnetic pole fixing plate to perform electromagnetic work. This causes the angle adjustment device housing to be pushed to rotate by the electromagnetic force of the angle adjustment drive coil on the main shaft coil fixing frame, thereby adjusting the angle of the angle adjustment device housing. When the angle is properly adjusted, the angle adjustment drive coil is de-energized and loses its magnetism. At the same time, the electromagnetic brake inside the quick-brake cover is activated and engages with the quick-brake groove for braking. At this time, the electromagnetic armature inside the electromagnetic brake is de-energized, and the de-energized electromagnetic armature loses its magnetism. The brake block is bounced up by the brake spring. The bounced brake block contacts the armature groove and rubs against it, causing the angle adjustment device housing to stop rotating and be positioned, greatly improving the braking capability of the angle adjustment device housing.

[0018] 2. Through the setup of the lifting clamp arm, the moving shaft inside the lifting clamp arm drives the hydraulic motor to extend the hydraulic rod of the moving shaft. The extended hydraulic rod pushes the moving shaft of the lifting clamp, which moves inside the moving shaft groove. The moving shaft drives the lifting clamp support rod connected to it to move horizontally, thereby adjusting the distance between the two main clamp plates to achieve the clamping function of the car flywheel housing. Then, the car flywheel housing is clamped by the auxiliary clamp plate. The clamp plate clamping bolts are used to clamp the car flywheel housing between the auxiliary clamp plate and the clamp plate. Alternatively, according to the specifications, the car flywheel housing can be placed on top of the built-in magnet in the main clamp plate. The built-in magnet attracts the car flywheel housing to prevent it from falling. At this point, the placement and fixing process of the car flywheel housing is completed. The movable and adjustable function of the lifting clamp arm allows the device to adapt to different specifications of car flywheel housings, improving the lifting adaptability of car flywheel housings.

[0019] 3, through the main clamp plate, clamp plate clamping bolt, vice clamp plate, the setting of built-in magnetic block, the automobile flywheel shell can be clamped and fixed by the vice clamp plate and the clamp anti-skid plate, and can also be magnetically attracted and fixed above the built-in magnetic block in the main clamp plate, so that the clamping and lifting specifications of automobile flywheel shells of different specifications are met. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0021] Figure 2 It is a schematic diagram of the angle adjusting device shell structure of the present application.

[0022] Figure 3 It is a schematic diagram of the quick brake cover structure of the present application.

[0023] Figure 4 It is a schematic diagram of the lifting clamp arm structure of the present application.

[0024] Figure 5 It is a schematic diagram of the A part of the present application.

[0025] Figure 6 It is a schematic diagram of the electromagnetic brake structure of the present application.

[0026] In the figure: 1, telescopic hydraulic motor; 2, lifting clamp fixed plate; 3, lifting clamp fixed block; 4, bearing; 5, angle adjusting device shell; 6, lifting clamp arm; 7, lifting clamp moving shaft; 8, lifting clamp support rod; 9, main clamp plate; 10, clamp plate clamping bolt; 11, vice clamp plate; 12, main shaft; 13, main shaft coil fixing frame; 14, angle adjusting drive coil; 15, magnetic pole fixing plate; 16, permanent magnet; 17, quick brake cover; 18, electromagnetic brake; 19, quick brake groove; 20, moving shaft moving groove; 21, moving shaft drive hydraulic motor; 22, moving shaft hydraulic rod; 23, clamp anti-skid plate; 24, built-in magnetic block; 25, electromagnetic armature; 26, brake spring; 27, brake block; 28, armature groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0028] Please refer to Figures 1-6The application provides a lifting clamp for casting an automobile flywheel shell, which comprises a telescopic hydraulic motor 1, a lifting clamp fixing plate 2 is arranged at the upper end of the telescopic hydraulic motor 1, the lifting clamp fixing plate 2 is in threaded connection with the telescopic hydraulic motor 1, a lifting clamp fixing block 3 is arranged at the output end of the telescopic hydraulic motor 1, the lifting clamp fixing block 3 is in welded connection with the telescopic hydraulic motor 1, a bearing 4 is arranged at the lower end of the lifting clamp fixing block 3, the bearing 4 is in bearing connection with the lifting clamp fixing block 3, an angle adjusting device housing 5 is arranged at the lower end of the bearing 4, the angle adjusting device housing 5 is in rotating shaft connection with the bearing 4, lifting clamp arms 6 are arranged at the two sides of the angle adjusting device housing 5, the lifting clamp arms 6 are in threaded connection with the angle adjusting device housing 5, lifting clamp moving shafts 7 are arranged in the lifting clamp arms 6, the lifting clamp moving shafts 7 are in clamping groove sliding connection with the lifting clamp arms 6, lifting clamp support rods 8 are arranged at the lower ends of the lifting clamp moving shafts 7, the lifting clamp support rods 8 are in welded connection with the lifting clamp moving shafts 7, main clamp plates 9 are arranged at the lower ends of the lifting clamp support rods 8, the main clamp plates 9 are in welded connection with the lifting clamp support rods 8, clamp plate clamping bolts 10 are arranged at one end of each main clamp plate 9, the clamp plate clamping bolts 10 are in threaded connection with the main clamp plates 9, and vice clamp plates 11 are arranged at the lower ends of the clamp plate clamping bolts 10, the vice clamp plates 11 are in threaded connection with the clamp plate clamping bolts 10.

[0029] Further, a main shaft 12 is arranged in the angle adjusting device housing 5, the main shaft 12 is in welded connection with the bearing 4, a main shaft coil fixing frame 13 is arranged on the outer wall of the main shaft 12, the main shaft coil fixing frame 13 is in welded connection with the main shaft 12, an angle adjusting drive coil 14 is arranged on the outer wall of the main shaft coil fixing frame 13, the angle adjusting drive coil 14 is in adhesive connection with the main shaft coil fixing frame 13, magnetic pole fixing plates 15 are arranged at the two sides of the inner wall of the angle adjusting device housing 5, the magnetic pole fixing plates 15 are in welded connection with the inner wall of the angle adjusting device housing 5, a permanent magnet 16 is arranged in each magnetic pole fixing plate 15, the permanent magnet 16 is in welded connection with the magnetic pole fixing plate 15, and the magnetic field generated by the angle adjusting drive coil 14 and the permanent magnet 16 can realize the rotating adjusting function.

[0030] Further, an upper quick brake cover 17 is arranged at the lower end of the angle adjusting device housing 5, the quick brake cover 17 is in welded connection with the main shaft 12, an electromagnetic brake 18 is arranged in the quick brake cover 17, the electromagnetic brake 18 is in threaded connection with the quick brake cover 17, a quick brake groove 19 is arranged above the electromagnetic brake 18, the quick brake groove 19 is integrally formed with the angle adjusting device housing 5, and the electromagnetic brake 18 is used to realize the brake of the rotating angle adjusting device housing 5 by friction with the quick brake groove 19.

[0031] Further, the inside of each electromagnetic brake 18 is provided with an electromagnetic armature 25, and the electromagnetic armature 25 is welded with the electromagnetic brake 18, the outside of the electromagnetic armature 25 is provided with a brake spring 26, and the brake spring 26 is welded with the inner wall of the electromagnetic brake 18, the upper end of the brake spring 26 is provided with a brake block 27, and the brake block 27 is welded with the brake spring 26, the electromagnetic armature 25 in the electromagnetic brake 18 is powered off, the powered-off electromagnetic armature 25 loses magnetism, the brake block 27 is bounced up by the brake spring 26, the bounced-up brake block 27 contacts and rubs with the armature groove 28, so that the device angle adjusting device shell 5 stops rotating and positioning.

[0032] Further, the inside of each hoisting clamp arm 6 is provided with a moving shaft moving groove 20, and the moving shaft moving groove 20 is integrally formed with the hoisting clamp arm 6, one end of the inside of each moving shaft moving groove 20 is provided with a moving shaft drive hydraulic motor 21, and the moving shaft drive hydraulic motor 21 is threadedly connected with the moving shaft moving groove 20, the output end of each moving shaft drive hydraulic motor 21 is provided with a moving shaft hydraulic rod 22, and the two ends of the moving shaft hydraulic rod 22 are respectively threadedly connected with the moving shaft drive hydraulic motor 21 and the hoisting clamp moving shaft 7, the hoisting clamp arm 6 can be horizontally adjusted, so that the hoisting clamp arm 6 can more stably clamp the automobile flywheel shell.

[0033] Further, the lower side of the main clamp plate 9 is provided with a clamp anti-skid plate 23, and the clamp anti-skid plate 23 is adhesively connected with the main clamp plate 9, the inside of each main clamp plate 9 is provided with an embedded magnetic block 24, and the embedded magnetic block 24 is welded with the main clamp plate 9, the clamp anti-skid plate 23 improves the clamping degree with the automobile flywheel shell.

[0034] Further, the inside of the brake block 27 is provided with an armature groove 28, the armature groove 28 is integrally formed with the brake block 27, and the armature groove 28 is magnetically attracted with the electromagnetic armature 25, the armature groove 28 is attracted by the electromagnetic armature 25, so that the brake block 27 is locked inside the electromagnetic brake 18.

[0035] Further, a method for using the hoisting clamp for automobile flywheel shell casting, comprising the following steps:

[0036] Step one: first, the telescopic hydraulic motor 1 is started to extend the lower structure to the casting hoisting position, the moving shaft drive hydraulic motor 21 in the hoisting clamp arm 6 drives the moving shaft hydraulic rod 22 to extend, the extended moving shaft hydraulic rod 22 pushes the hoisting clamp moving shaft 7, the hoisting clamp moving shaft 7 moves inside the moving shaft moving groove 20, the moving hoisting clamp moving shaft 7 drives the hoisting clamp support rod 8 connected thereto to move horizontally, so as to adjust the distance between the two main clamp plates 9 to realize the clamping function of the automobile flywheel shell;

[0037] Step two: then the automobile flywheel shell is clamped between the vice clamp plate 11 and the automobile flywheel shell is clamped between the clamp plate clamping bolt 10, or the automobile flywheel shell is placed on the built-in magnetic block 24 in the main clamp plate 9 according to the specification, the built-in magnetic block 24 magnetically attracts the automobile flywheel shell to prevent falling, which completes the placement and fixing process of the automobile flywheel shell;

[0038] Step three: when the automobile flywheel shell is fixed, the angle adjusting drive coil 14 in the angle adjusting device shell 5 starts to be electrified when the automobile flywheel shell needs to be adjusted, the electrified angle adjusting drive coil 14 generates magnetic force and electromagnetic force with the permanent magnet 16 on the magnetic pole fixed plate 15, so that the angle adjusting device shell 5 is pushed to rotate by the electromagnetic force of the angle adjusting drive coil 14 on the main shaft coil fixing frame 13, so as to adjust the angle of the angle adjusting device shell 5, when the angle adjustment is appropriate, the angle adjusting drive coil 14 is de-energized and loses magnetism, and the electromagnetic brake 18 in the quick brake cover 17 starts to brake with the quick brake groove 19, at this time the electromagnetic armature 25 in the electromagnetic brake 18 is de-energized and loses magnetism, the brake block 27 is bounced up by the brake spring 26, the bounced brake block 27 contacts and rubs with the armature groove 28, so that the device angle adjusting device shell 5 stops rotating and positioning, greatly improving the braking ability of the angle adjusting device shell 5.

[0039] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to include all changes falling within the meaning and range of equivalents of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A lifting fixture for casting a flywheel housing of an automobile, comprising a telescopic hydraulic motor (1), characterized in that: The upper end of the telescopic hydraulic motor (1) is provided with a lifting clamp fixed plate (2), and the lifting clamp fixed plate (2) is threadedly connected with the telescopic hydraulic motor (1); the output end of the telescopic hydraulic motor (1) is provided with a lifting clamp fixed block (3), and the lifting clamp fixed block (3) is weldedly connected with the telescopic hydraulic motor (1); the lower end of the lifting clamp fixed block (3) is provided with a bearing (4), and the bearing (4) is bearingly connected with the lifting clamp fixed block (3); the lower end of the bearing (4) is provided with an angle adjusting device shell (5), and the angle adjusting device shell (5) is connected with the bearing (4) in a rotating shaft mode; the two sides of the angle adjusting device shell (5) are provided with lifting clamp arms (6), and the lifting clamp arms (6) are threadedly connected with the angle adjusting device shell (5); the interiors of the lifting clamp arms (6) are provided with lifting clamp moving shafts (7), and the lifting clamp moving shafts (7) are slidingly connected with the lifting clamp arms (6) in a clamping groove mode; the lower ends of the lifting clamp moving shafts (7) are provided with lifting clamp support rods (8), and the lifting clamp support rods (8) are weldedly connected with the lifting clamp moving shafts (7); the lower ends of the lifting clamp support rods (8) are provided with main clamp plates (9), and the main clamp plates (9) are weldedly connected with the lifting clamp support rods (8); one end of each main clamp plate (9) is provided with a clamp plate clamping bolt (10), and the clamp plate clamping bolt (10) is threadedly connected with the main clamp plate (9); the lower end of each clamp plate clamping bolt (10) is provided with a secondary clamp plate (11), and the secondary clamp plate (11) is threadedly connected with the clamp plate clamping bolt (10); the interior of the angle adjusting device shell (5) is provided with a main shaft (12), and the main shaft (12) is weldedly connected with the bearing (4); the outer wall of the main shaft (12) is provided with a main shaft coil fixing frame (13), and the main shaft coil fixing frame (13) is weldedly connected with the main shaft (12); the outer wall of the main shaft coil fixing frame (13) is provided with an angle adjusting drive coil (14), and the angle adjusting drive coil (14) is adhesively connected with the main shaft coil fixing frame (13); the inner walls of the angle adjusting device shell (5) are provided with magnetic pole fixing plates (15), and the magnetic pole fixing plates (15) are weldedly connected with the inner walls of the angle adjusting device shell (5); the interiors of the magnetic pole fixing plates (15) are provided with permanent magnets (16), and the permanent magnets (16) are weldedly connected with the magnetic pole fixing plates (15); the lower end of the angle adjusting device shell (5) is provided with an upper quick brake cover (17), and the quick brake cover (17) is weldedly connected with the main shaft (12); the interior of the quick brake cover (17) is provided with an electromagnetic brake (18), and the electromagnetic brake (18) is threadedly connected with the quick brake cover (17); the upper portion of the electromagnetic brake (18) is provided with a quick brake groove (19), and the quick brake groove (19) is integrally formed with the angle adjusting device shell (5). The inside of each electromagnetic brake (18) is provided with an electromagnetic armature (25), and the electromagnetic armature (25) is welded with the electromagnetic brake (18), the outside of the electromagnetic armature (25) is provided with a brake spring (26), and the brake spring (26) is welded with the inner wall of the electromagnetic brake (18), the upper end of the brake spring (26) is provided with a brake block (27), and the brake block (27) is welded with the brake spring (26), The lower side of the main clamp plate (9) is provided with a clamp anti-skid plate (23), and the clamp anti-skid plate (23) is glued with the main clamp plate (9), the inside of each main clamp plate (9) is provided with an embedded magnetic block (24), and the embedded magnetic block (24) is welded with the main clamp plate (9), the inside of the brake block (27) is provided with an armature groove (28), the armature groove (28) is integrally formed with the brake block (27), and the armature groove (28) is magnetically connected with the electromagnetic armature (25).

2. The lifting clamp for casting the flywheel housing of an automobile according to claim 1, wherein: The inside of each lifting clamp arm (6) is provided with a moving shaft moving groove (20), and the moving shaft moving groove (20) is integrally formed with the lifting clamp arm (6), one end of the inside of each moving shaft moving groove (20) is provided with a moving shaft driving hydraulic motor (21), and the moving shaft driving hydraulic motor (21) is threadedly connected with the moving shaft moving groove (20), the output end of each moving shaft driving hydraulic motor (21) is provided with a moving shaft hydraulic rod (22), and the two ends of the moving shaft hydraulic rod (22) are respectively threadedly connected with the moving shaft driving hydraulic motor (21) and the lifting clamp moving shaft (7).

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