Cast iron block pick-up clamp

Abstract

The utility model discloses a cast iron block picking clamp which comprises a first connecting base, a hydraulic cylinder is installed on the top of the first connecting base, the bottom of the first connecting base is fixedly connected to the upper portion of a second connecting base, the second connecting base is of a tubular structure, three lifting grooves are formed in the outer wall of the second connecting base at equal intervals, and a transmission rod is connected to the inner wall of the second connecting base in a sliding mode. The transmission rod is fixedly connected with a piston rod of the hydraulic cylinder, transmission arms are fixedly connected to the bottom of the outer wall of the transmission rod at equal intervals, the transmission arms penetrate through the lifting groove and are in clearance fit with the lifting groove, linkage arms are rotationally connected to the tail ends of the transmission arms and located below the transmission arms, and first supporting arms are rotationally connected to the middles of the outer walls of the linkage arms correspondingly; the end, away from the linkage arm, of the first supporting arm is rotationally connected with the outer wall of the second connecting base.

Description

Technical Field

[0001] The utility model relates to the technical field of metal casting equipment, in particular to cast iron block picking pliers. Background Art

[0002] Cast iron block picking pliers are a tool specially used for clamping and picking up cast iron blocks. They are usually made of high-quality steel materials, have a sturdy structure, and can withstand the weight of the cast iron block and the pressure generated during clamping. Their surface is usually coated with a corrosion-resistant coating to improve service life and durability. In the existing technology, cast iron block picking pliers clamp the cast iron block through symmetrical clamping arms. When the cast iron block moves to one side of the clamping arm, it is affected by inertia and is prone to falling off. It may even cause the clamping arm to deform, affecting the clamping stability and service life of the picking pliers. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the utility model provides a cast iron block picking pliers, which solves the problem in the existing technology that the cast iron block picking pliers clamp the cast iron block through symmetrical clamping arms. When the cast iron block moves toward one side of the clamping arm, it is affected by inertia and is prone to falling off. It may even cause the clamping arm to deform, affecting the clamping stability and service life of the picking pliers.

[0004] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: the cast iron block picking pliers include a first connecting seat, a hydraulic cylinder is installed on the top of the first connecting seat, the bottom of the first connecting seat is fixedly connected to the upper part of the second connecting seat, the second connecting seat is a tubular structure, the outer wall of the second connecting seat is equidistantly provided with three lifting grooves, the inner wall of the second connecting seat is slidably connected to a transmission rod, the transmission rod is fixedly connected to the piston rod of the hydraulic cylinder, the outer wall bottom of the transmission rod is equidistantly fixedly connected to a transmission arm, the transmission arm passes through the lifting groove, the transmission arm and the lifting groove are clearance-matched, and the end of the transmission arm is rotatably connected to a linkage The arm, the linkage arm is located below the transmission arm, and the middle part of the outer wall of the linkage arm is rotatably connected to the first support arm, and the end of the first support arm away from the linkage arm is rotatably connected to the outer wall of the second connecting seat, and three second support arms are equidistantly arranged at the bottom of the second connecting seat, and the bottom of the second connecting seat is rotatably connected to one end of the second support arm, and the other end of the second support arm is rotatably connected to one end of the cross plate, and the end of the linkage arm away from the transmission arm is rotatably connected to the other end of the cross plate, and the bottom of the cross plate is fixedly connected to the upper part of the clamping arm, and the sides of the bottoms of the clamping arms close to each other are fixedly connected to the clamp heads, and the two adjacent clamp heads fit together.

[0005] A limiting groove is provided on the outer wall of the clamp head, and a fixing plate is fixedly connected to the side of the bottom of the clamping arm that is close to each other. The fixing plate is slidably connected to the limiting groove, and the fixing plate is fixedly connected to the clamp head by a fixing bolt. The bolt passes through the fixing plate, and the bolt is threadedly connected to the fixing plate, and the bolt is tightly pressed against the limiting groove.

[0006] One side of the first connecting seat is fixedly connected to the mounting plate, and fixing holes are equidistantly formed on a side of the mounting plate away from the first connecting seat.

[0007] A reinforcement plate is fixedly connected to the bottom of the mounting plate at equal intervals, and the reinforcement plate is fixedly connected to the first connecting seat.

[0008] The utility model provides a cast iron block picking pliers having the following beneficial effects: three clamping arms are synchronously expanded or converged under the action of a transmission arm, a linkage arm, a first support arm, and a second support arm; and when the clamping arms converge, the three clamp heads can respectively clamp the cast iron block in three directions; when the cast iron block is moved in any direction, the three clamp heads can provide stable clamping force, reducing the probability of the cast iron block falling off and the clamping arms being deformed by force, thereby helping to improve the clamping stability and service life of the cast iron block picking pliers.

[0009] The clamp head is stably mounted and fixed at the bottom of the clamping arm. When the clamp head is severely worn, it can be replaced more conveniently to ensure stable clamping of the cast iron block, which can improve the convenience of equipment maintenance and reduce the cost of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the appearance of the utility model;

[0011] Figure 2 for Figure 1 Schematic diagram of the appearance of the second connecting seat, linkage arm and clamping arm;

[0012] Figure 3 for Figure 1 A cross-sectional view of the second connecting seat, the transmission rod and the transmission arm;

[0013] Figure 4 This is a schematic diagram of the appearance of the clamp head, limiting groove and fixing plate in the utility model.

[0014] In the figure: 1. First connecting seat, 2. Hydraulic cylinder, 3. Second connecting seat, 4. Lifting slot, 5. Transmission rod, 6. Transmission arm, 7. Linkage arm, 8. First support arm, 9. Second support arm, 10. Clamping arm, 11. Clamp head, 12. Limiting slot, 13. Fixing plate, 14. Fixing bolt, 15. Mounting plate, 16. Fixing hole, 17. Reinforcement plate, 18. Horizontal plate. DETAILED DESCRIPTION

[0015] Depend on Figure 1-4It can be seen that the cast iron block picking pliers include a first connecting seat 1; a hydraulic cylinder 2 is installed on the top of the first connecting seat 1, and the bottom of the first connecting seat 1 is fixedly connected to the upper part of the second connecting seat 3. The second connecting seat 3 is a tubular structure, and the outer wall of the second connecting seat 3 is equidistantly provided with three lifting grooves 4. The inner wall of the second connecting seat 3 is slidably connected with a transmission rod 5, and the transmission rod 5 is fixedly connected to the piston rod of the hydraulic cylinder 2. The bottom of the outer wall of the transmission rod 5 is equidistantly fixed with a transmission arm 6, which passes through the lifting groove 4. The transmission arm 6 is clearance-matched with the lifting groove 4. The end of the transmission arm 6 is rotatably connected to the linkage arm 7, and the linkage arm 7 is located below the transmission arm 6. The middle part of the outer wall of the linkage arm 7 is rotatably connected with the first support arm 8, and the end of the first support arm 8 away from the linkage arm 7 is rotatably connected to the outer wall of the second connecting seat 3. Three second support arms 9 are equidistantly arranged at the bottom of the second connecting seat 3. The bottom of the second connecting seat 3 is rotatably connected to one end of the second support arm 9, and the other end of the second support arm 9 is rotatably connected to one end of the cross plate 18. The end of the linkage arm 7 away from the transmission arm 6 is rotatably connected to the other end of the cross plate 18. The bottom of the cross plate 18 is fixedly connected to the upper part of the clamping arm 10, and the side of the bottom of the clamping arm 10 close to each other is fixedly connected to the clamp head 11, and the two adjacent clamp heads 11 fit together.

[0016] A limiting groove 12 is provided on the outer wall of the clamp head 11, and a fixing plate 13 is fixedly connected to the side of the bottom of the clamping arm 10 that is close to each other. The fixing plate 13 is slidably connected to the limiting groove 12, and the fixing plate 13 is fixedly connected to the clamp head 11 through a fixing bolt 14. The bolt 14 passes through the fixing plate 13, and the bolt 14 is threadedly connected to the fixing plate 13, and the bolt 14 is tightly pressed against the limiting groove 12.

[0017] One side of the first connecting base 1 is fixedly connected to a mounting plate 15 , and a side of the mounting plate 15 away from the first connecting base 1 is provided with fixing holes 16 at equal intervals.

[0018] A reinforcement plate 17 is fixedly connected to the bottom of the mounting plate 15 at equal intervals. The reinforcement plate 17 is fixedly connected to the first connecting seat 1 .

[0019] The first connecting seat 1 is installed and fixed with the driving device, and is used to move the cast iron block picking pliers. The hydraulic cylinder 2 is used to provide clamping power to the clamping arm of the cast iron block picking pliers. Through the cooperation between the first connecting seat 1, the hydraulic cylinder 2, the second connecting seat 3 and the transmission rod 5, the telescopic rod of the hydraulic cylinder 2 is controlled to be extended and retracted, and the transmission rod 5 is lifted and moved in the second connecting seat 3. Through the cooperation between the second connecting seat 3, the lifting slot 4, the transmission rod 5, the transmission arm 6, the linkage arm 7, the first support arm 8, the second support arm 9 and the clamping arm 10, three clamping arms 10 are equidistantly arranged at the bottom of the second connecting seat 3. The transmission rod 5 drives the transmission arm 6 to rise and fall under the action of the hydraulic cylinder 2, and drives the clamping arm 10 through the linkage arm 7, and under the action of the first support arm 8 and the second support arm 9, the clamping arm 10 is expanded or gathered. Through the first connecting seat 1, the hydraulic cylinder 2, the second connecting seat 3, the lifting slot 4, the transmission rod 5, the transmission arm 6, the linkage arm 7, the first support arm 8, the second support arm 9, the clamping arm 10 The cooperation between the clamp heads 11 and the transmission rod 5 and the transmission arm 6 is driven by the hydraulic cylinder 2 to move up and down, so that the three clamping arms 10 are synchronously expanded or gathered under the action of the transmission arm 6, the linkage arm 7, the first support arm 8 and the second support arm 9. When the clamping arms 10 are gathered, the three clamp heads 11 clamp the cast iron block in three directions respectively. When the cast iron block is moved in any direction, the three clamp heads 11 can provide a stable clamping force, reducing the cast iron block from falling off and the stress on the clamping arms 10. The probability of deformation is reduced, and the clamping stability and service life of the cast iron block picking pliers are improved. The specific model of the hydraulic cylinder 2 is not limited, and it can meet the use requirements; the fixing plate 13 and the clamp head 11 are fixed by the fixing bolts 14, and a limit is formed between the limit groove 12 and the fixed plate 13, so that the clamp head 11 is stably installed and fixed at the bottom of the clamping arm 10. At the same time, when the clamp head 11 is severely worn, it is convenient to replace it to ensure stable clamping of the cast iron block and improve the convenience of equipment repair and maintenance.

[0020] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cast iron block picking pliers, comprising a first connecting seat (1), characterized in that: A hydraulic cylinder (2) is installed on the top of the first connecting seat (1), and the bottom of the first connecting seat (1) is fixedly connected to the upper part of the second connecting seat (3). The second connecting seat (3) is a tubular structure. The outer wall of the second connecting seat (3) is equidistantly provided with three lifting grooves (4). The inner wall of the second connecting seat (3) is slidably connected with a transmission rod (5). The transmission rod (5) is fixedly connected to the piston rod of the hydraulic cylinder (2). The bottom of the outer wall of the transmission rod (5) is equidistantly fixedly connected with a transmission arm (6). The transmission arm (6) passes through the lifting groove (4). The transmission arm (6) and the lifting groove (4) are clearance-matched. The end of the transmission arm (6) is rotatably connected with a linkage arm (7). The linkage arm (7) is located below the transmission arm (6). The middle part of the outer wall is rotatably connected with a first support arm (8), one end of the first support arm (8) away from the linkage arm (7) is rotatably connected to the outer wall of the second connecting seat (3), three second support arms (9) are equidistantly arranged at the bottom of the second connecting seat (3), the bottom of the second connecting seat (3) is rotatably connected to one end of the second support arm (9), the other end of the second support arm (9) is rotatably connected to one end of the transverse plate (18), the end of the linkage arm (7) away from the transmission arm (6) is rotatably connected to the other end of the transverse plate (18), the bottom of the transverse plate (18) is fixedly connected to the upper part of the clamping arm (10), the bottom of the clamping arm (10) is fixedly connected to the side close to each other, and the two adjacent clamping heads (11) are fitted together.

2. The cast iron block picking pliers according to claim 1, characterized in that: The outer wall of the clamp head (11) is provided with a limiting groove (12), and a fixing plate (13) is fixedly connected to the side of the bottom of the clamping arm (10) close to each other. The fixing plate (13) is connected to the limiting groove (12) by sliding engagement. The fixing plate (13) is fixedly connected to the clamp head (11) by a fixing bolt (14). The bolt (14) passes through the fixing plate (13), the bolt (14) is threadedly connected to the fixing plate (13), and the bolt (14) is tightly pressed against the limiting groove (12).

3. The cast iron block picking pliers according to claim 1, characterized in that: One side of the first connecting seat (1) is fixedly connected to a mounting plate (15), and a side of the mounting plate (15) away from the first connecting seat (1) is provided with fixing holes (16) at equal distances.

4. The cast iron block picking pliers according to claim 3, characterized in that: A reinforcement plate (17) is fixedly connected to the bottom of the mounting plate (15) at equal intervals, and the reinforcement plate (17) is fixedly connected to the first connecting seat (1).

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