Adjustable clamp for repairing cracks in metal castings

Abstract

The utility model provides a kind of adjustable fixture for metal casting crack repair, it is related to foundry equipment technical field, including telescopic frame, threaded connection ring block, fixed rod, bottom rail plate, bottom support rod, motor, top rail plate, fixed frame and screw rod;A group of threaded round holes are equipped in telescopic frame middle, and screw rod is rotatably connected in telescopic frame middle threaded round hole, one side of screw rod is equipped with a group of annular plates, and four groups of threaded holes are equipped on the annular plate of screw rod side, four groups of knob top rods are rotatably connected on the annular plate of screw rod side;Two groups of threaded round holes are equipped in telescopic frame lower part side, each group of circular holes is equipped in motor bottom side connecting plate;Telescopic frame, screw rod, knob top rod etc. are set, clamp opening and closing can be flexibly adjusted, different castings are adapted to realize stable clamping;Crack reset is assisted by cooperating motor, transmission assembly;Displacement is limited by combining top rail plate and other components, meet the demand of complex repair process.

Description

Technical Field

[0001] This utility model belongs to the field of casting equipment technology, and more specifically, it relates to an adjustable clamp for repairing cracks in metal castings. Background Technology

[0002] Metal castings are widely used in modern industrial production, spanning numerous fields such as machinery manufacturing, automotive, and aerospace. However, during manufacturing and use, metal castings are prone to cracking defects due to various complex factors. During manufacturing, improper control of casting process parameters, uneven molten metal flow, and significant differences in cooling rates can easily lead to stress concentration within the casting, thus initiating cracks. During use, prolonged exposure to alternating loads, impact loads, and harsh working environments can also cause crack initiation and propagation. These cracks not only affect the appearance quality of metal castings but also seriously threaten their mechanical properties and structural integrity, reducing equipment reliability and service life, and may even lead to safety accidents. Therefore, timely and effective repair of cracks in metal castings is crucial. In the crack repair process, suitable fixtures are one of the key factors in ensuring repair quality and efficiency.

[0003] Based on the above, existing fixtures often fail to achieve stable clamping when dealing with complex metal castings due to their irregular shapes, and cannot reposition the cracks. This leads to easy displacement of the castings during the repair process, affecting the accuracy of repair operations such as welding or filling, and making it difficult to meet the process requirements for repairing cracks in complex castings. Therefore, there is an urgent need for an adjustable fixture to solve these problems. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an adjustable clamp for repairing cracks in metal castings. This solves the problems of existing adjustable clamps for repairing cracks in metal castings, which are unable to stably clamp complex and irregularly shaped metal castings; cannot reset the crack position; and are prone to displacement during repair, affecting repair accuracy and failing to meet process requirements.

[0005] This utility model discloses an adjustable clamp for repairing cracks in metal castings, achieved through the following specific technical means:

[0006] An adjustable clamp for repairing cracks in metal castings includes a telescopic frame, a threaded connecting ring block, a fixing rod, a bottom rail plate, a bottom support rod, a motor, a top rail plate, a fixing frame, and a screw. The telescopic frame has a set of threaded circular holes in the middle, and the screw is rotatably connected to the threaded circular holes in the middle of the telescopic frame. One side of the screw has a set of annular plates, and four sets of threaded holes are provided on the annular plates on one side of the screw. Four sets of push rods are rotatably connected to the annular plates on one side of the screw. The lower side of the telescopic frame has two sets of threaded circular holes, and each of the bottom connecting plates of the motor has a set of circular holes. The bottom connecting plate is fastened to one side of the lower part of the telescopic frame by screws; one side of the fixed frame has a set of round heads, and a set of threaded round holes are provided inside the round heads on one side of the fixed frame, and the fixed rod is fastened to the round heads on one side of the fixed frame; each side of the top rail plate has a set of T-shaped rail grooves, and each side of the threaded connecting ring block has a set of T-shaped blocks, and the two sides of the threaded connecting ring blocks are movably connected to the two sides of the inside of the top rail plate; the top of the bottom rail plate has a set of T-shaped rail grooves, and the lower part of the bottom support rod has a set of T-shaped blocks, and the lower part of the bottom support rod is movably connected to the top of the bottom rail plate.

[0007] Furthermore, a set of circular holes is provided on the lower part of one side of the telescopic frame, and a shaft is rotatably connected in the circular holes on the lower part of one side of the telescopic frame. A transmission wheel is rotatably connected to one side of the shaft; the rotating shaft on the motor side is rotatably connected to the outside of the screw through the transmission wheel.

[0008] Furthermore, the top of the telescopic frame and the top of the fixed frame are welded to the bottom sides of the top rail plate; a set of threaded round holes are provided in the middle of the threaded connecting ring block, and a lifting rod is rotatably connected to the threaded round hole in the middle of the threaded connecting ring block; four sets of push rods are rotatably connected to the lower annular plate of the lifting rod.

[0009] Furthermore, a set of annular plates is provided on one side of the fixing rod, and four sets of threaded round holes are provided on the annular plate on one side of the fixing rod. Four sets of push rods are rotatably connected to the annular plate on one side of the fixing rod.

[0010] Furthermore, each of the telescopic frame and the fixed frame has a set of square grooves at the bottom, and each of the two sides of the bottom rail plate has a set of square heads, and the square heads on both sides of the bottom rail plate are snapped into the square grooves at the bottom of the telescopic frame and the fixed frame; four sets of push rods are rotatably connected to the annular plate at the top of the bottom support rod.

[0011] Furthermore, each of the telescopic frame and the fixed frame has a set of square plates at its bottom, and each of the square plates at the bottom of the telescopic frame and the fixed frame has a set of threaded round holes on both sides.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model, by setting a telescopic frame, screw and push rod, can flexibly adjust the opening and closing degree of the clamp to adapt to metal castings of different sizes and irregular shapes, achieve stable clamping, and solve the problem of difficult fixation.

[0014] 2. This utility model, by setting up a motor, transmission wheel and shaft, can drive the screw to rotate, drive the telescopic frame to extend and retract, assist in the repositioning of the crack, ensure the precise positioning of the casting during repair, and improve the repair accuracy.

[0015] 3. This utility model, by setting a top rail plate, a threaded connecting ring block, a bottom rail plate and a bottom support rod, can adjust the position of the components, limit the displacement of the castings, provide stable support for repair operations such as welding or filling, and meet the requirements of complex repair processes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the clamping device of this utility model.

[0018] Figure 3 This is a cross-sectional structural diagram of the main body of this utility model.

[0019] Figure 4 This is a cross-sectional structural schematic diagram of the auxiliary clamping device of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Telescopic frame; 2. Threaded connecting ring block; 3. Fixing rod; 4. Bottom rail plate; 5. Bottom support rod; 6. Motor; 7. Button rod; 101. Top rail plate; 102. Fixing frame; 201. Lifting rod; 601. Screw; 602. Transmission wheel; 603. Shaft. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model. Example:

[0023] As attached Figure 1 To be continued Figure 4 As shown:

[0024] This utility model provides an adjustable clamp for repairing cracks in metal castings, including a telescopic frame 1, a threaded connecting ring block 2, a fixing rod 3, a bottom rail plate 4, a bottom support rod 5, a motor 6, a top rail plate 101, a fixing frame 102, and a screw 601; the telescopic frame 1 has a set of threaded circular holes in the middle, and the screw 601 is rotatably connected to the threaded circular holes in the middle of the telescopic frame 1; a set of annular plates is provided on one side of the screw 601, and four sets of threaded holes are provided on the annular plates on one side of the screw 601; four sets of push rods 7 are rotatably connected to the annular plates on one side of the screw 601; two sets of threaded circular holes are provided on one side of the lower part of the telescopic frame 1, and each of the connecting plates on the bottom side of the motor 6 has A set of circular holes, and the bottom connecting plate of the motor 6 is fastened to the lower side of the telescopic frame 1 by screws; a set of circular heads is provided on one side of the fixed frame 102, and a set of threaded circular holes is provided in the circular heads on one side of the fixed frame 102, and the fixed rod 3 is fastened to the circular heads on one side of the fixed frame 102; a set of T-shaped track grooves are provided on both sides of the interior of the top rail plate 101, and a set of T-shaped blocks are provided on both sides of the threaded connecting ring block 2, and the threaded connecting ring block 2 is movably connected to the interior of both sides of the top rail plate 101; a set of T-shaped track grooves are provided on the top of the bottom rail plate 4, and a set of T-shaped blocks are provided at the bottom of the bottom support rod 5, and the bottom of the bottom support rod 5 is movably connected to the top of the bottom rail plate 4.

[0025] The telescopic frame 1 has a set of circular holes on one side of its lower part, and a shaft 603 is rotatably connected to the circular holes on one side of the telescopic frame 1. A transmission wheel 602 is rotatably connected to one side of the shaft 603. The rotating shaft on one side of the motor 6 is rotatably connected to the outside of the screw 601 through the transmission wheel 602. This transmission structure design realizes the efficient transmission of power from the motor 6, enabling the screw 601 to rotate stably, thereby driving the telescopic frame 1 to extend and retract precisely. This ensures that the clamp can flexibly adjust its clamping range, while providing reliable power and displacement adjustment for the reset of cracks in metal castings.

[0026] The top of the telescopic frame 1 and the top of the fixed frame 102 are welded to the bottom sides of the top rail plate 101. The threaded connecting ring block 2 has a set of threaded round holes in the middle, and the threaded round holes in the middle of the threaded connecting ring block 2 are rotatably connected to the lifting rod 201. Four sets of push rods 7 are rotatably connected to the lower annular plate of the lifting rod 201. The top rail plate 101, the telescopic frame 1, and the fixed frame 102 form a stable support. The threaded connecting ring block 2, together with the lifting rod 201 and the push rods 7, can flexibly adjust the top clamping height and angle to adapt to castings of different heights, achieve all-round stable clamping, and ensure the smooth progress of repair operations.

[0027] The fixing rod 3 has a set of annular plates on one side, and four sets of threaded round holes on the annular plates on one side of the fixing rod 3. Four sets of push rods 7 are rotatably connected to the annular plates on one side of the fixing rod 3. The cooperation between the fixing rod 3 and the push rods 7 can press against the metal casting from the side. By adjusting the screw depth of the push rods 7, it can adapt to castings of different shapes, effectively restrict their lateral displacement, provide stable and reliable lateral support for crack repair, and improve the repair accuracy and stability.

[0028] The telescopic frame 1 and the fixed frame 102 each have a set of square grooves at their lower parts, and the bottom rail plate 4 has a set of square heads on each side. The square heads on both sides of the bottom rail plate 4 are snapped into the square grooves at the lower parts of the telescopic frame 1 and the fixed frame 102. Four sets of push rods 7 are rotatably connected to the upper annular plate of the bottom support rod 5. The snap-fit ​​structure between the bottom rail plate 4 and the telescopic frame 1 and the fixed frame 102 ensures the stability of the bottom support. The bottom support rod 5, in conjunction with the push rods 7, can flexibly adjust the bottom support point to adapt to the bottom contour of castings of different shapes, effectively preventing vertical or horizontal displacement of the castings during repair.

[0029] The telescopic frame 1 and the fixed frame 102 each have a set of square plates at their bottom, and each of the square plates at the bottom of the telescopic frame 1 and the fixed frame 102 has a set of threaded round holes on both sides. The square plates and threaded round holes at the bottom of the telescopic frame 1 and the fixed frame 102 facilitate the secure installation of the clamp onto a flat surface such as a workbench using bolts. This design enhances the overall stability of the clamp, avoids displacement caused by vibration or other factors during the repair process, and ensures safe and precise repair operations.

[0030] The specific usage and function of this embodiment are as follows:

[0031] In this utility model, when in use, the metal casting is first placed in the clamping space consisting of the telescopic frame 1, the fixed frame 102, the bottom rail plate 4 and the bottom support rod 5. The motor 6 is started, and its rotating shaft drives the screw 601 to rotate through the transmission wheel 602 and the shaft 603, so that the telescopic frame 1 extends and retracts along the screw 601, and the clamping range of the fixture on the casting is initially adjusted. Subsequently, the operator rotates the four sets of push rods 7 on the annular plate on one side of the screw 601 to press the casting against it from multiple directions. At the same time, the operator can also rotate the push rods 7 on the upper annular plate of the fixed rod 3, the lifting rod 201, and the bottom support rod 5 to further stabilize the casting. If it is necessary to reset the crack during the repair process, the motor 6 is restarted, and the telescopic frame 1 is driven by the transmission component to make fine adjustments to achieve precise alignment. In addition, according to the shape of the casting and the location of the crack, the threaded connecting ring block 2 slides along the T-shaped track groove inside the top rail plate 101, and the bottom support rod 5 slides along the T-shaped track groove on the top of the bottom rail plate 4 to flexibly adjust the support position, restrict the displacement of the casting in all directions, and ensure the stable progress of the repair operation.

[0032] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. An adjustable clamp for repairing cracks in metal castings, characterized in that: It includes a telescopic frame (1), a threaded connecting ring block (2), a fixing rod (3), a bottom rail plate (4), a bottom support rod (5), a motor (6), a top rail plate (101), a fixing frame (102), and a screw (601). The telescopic frame (1) has a set of threaded round holes in the middle, and the screw (601) is rotatably connected in the threaded round holes in the middle of the telescopic frame (1). The screw (601) has a set of annular plates on one side, and the annular plates on one side of the screw (601) have four sets of threaded holes. The annular plates on one side of the screw (601) are rotatably connected to four sets of push rods (7). The telescopic frame (1) has two sets of threaded round holes on one side of its lower part. The bottom connecting plate of the motor (6) has a set of round holes on each side, and the bottom connecting plate of the motor (6) is fastened to the lower side of the telescopic frame (1) by screws. The fixed frame (10) 2) A set of round heads is provided on one side, and a set of threaded round holes are provided in the round head on one side of the fixing frame (102). The fixing rod (3) is fastened to the round head on one side of the fixing frame (102). A set of T-shaped track grooves are provided on both sides of the inside of the top rail plate (101). A set of T-shaped blocks are provided on both sides of the threaded connecting ring block (2), and the threaded connecting ring block (2) is movably connected to both sides of the inside of the top rail plate (101). A set of T-shaped track grooves are provided on the top of the bottom rail plate (4). A set of T-shaped blocks are provided at the bottom of the bottom support rod (5), and the bottom of the bottom support rod (5) is movably connected to the top of the bottom rail plate (4).

2. The adjustable clamp for repairing cracks in metal castings as described in claim 1, characterized in that: The telescopic frame (1) has a set of round holes on one side of the lower part, and a shaft (603) is rotatably connected in the round hole on one side of the telescopic frame (1). A transmission wheel (602) is rotatably connected on one side of the shaft (603). The rotating shaft on one side of the motor (6) is rotatably connected to the outside of the screw (601) through the transmission wheel (602).

3. The adjustable clamp for repairing cracks in metal castings as described in claim 1, characterized in that: The top of the telescopic frame (1) and the top of the fixed frame (102) are welded to the bottom sides of the top rail plate (101); the threaded connecting ring block (2) has a set of threaded round holes in the middle, and the threaded round holes in the middle of the threaded connecting ring block (2) are rotatably connected to the lifting rod (201); the lower ring plate of the lifting rod (201) is rotatably connected to four sets of push rods (7).

4. The adjustable clamp for repairing cracks in metal castings as described in claim 1, characterized in that: The fixed rod (3) has a set of annular plates on one side, and four sets of threaded round holes are provided on the annular plate on one side of the fixed rod (3). Four sets of push rods (7) are rotatably connected to the annular plate on one side of the fixed rod (3).

5. An adjustable clamp for repairing cracks in metal castings as described in claim 1, characterized in that: The telescopic frame (1) and the fixed frame (102) each have a set of square grooves at the bottom. The bottom rail plate (4) has a set of square heads on both sides. The square heads on both sides of the bottom rail plate (4) are snapped into the square grooves at the bottom of the telescopic frame (1) and the fixed frame (102). The bottom support rod (5) has four sets of push rods (7) rotatably connected to the upper ring plate.

6. The adjustable clamp for repairing cracks in metal castings as described in claim 1, characterized in that: The telescopic frame (1) and the fixed frame (102) each have a set of square plates at the bottom, and each of the square plates at the bottom of the telescopic frame (1) and the fixed frame (102) has a set of threaded round holes on both sides.

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