Diameter-variable cylindrical bar carrying clamp

Abstract

The utility model discloses a diameter-variable cylindrical bar carrying clamp which comprises a fixing frame, mounting holes are formed in the outer walls of the two sides of the fixing frame, a movable column is mounted between the two mounting holes in the same horizontal direction, a telescopic driving piece is arranged at the top of the fixing frame, and a telescopic rod is arranged on the telescopic driving piece. Two clamp distance adjusting structures are arranged at the bottom end of a piston rod of the telescopic driving piece, two clamping structures are arranged in the fixing frame, and the clamp distance adjusting structures penetrate through the outer portions of the limiting holes to be slidably connected with the inner wall of the fixing frame. Through a plurality of clamping structures and a sensor intelligent control structure, the clamp is suitable for cylindrical bars with different diameters, the frequency of replacing the clamp is reduced, the production efficiency is improved, meanwhile, the arc-shaped fixing blocks are matched to clamp the cylindrical bars at designated positions, the stability of the cylindrical bars in the transportation process is ensured, and the production efficiency is improved. Damage to the cylindrical bar is reduced, the rejection rate is reduced, and meanwhile the enterprise cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cylindrical bar material handling, in particular to a cylindrical bar material handling clamp with variable diameter. Background Art

[0002] Most companies use fixed cylindrical clamps because they can maintain the processing or handling of cylindrical bars in a fixed manner, which can not only reduce the damage of cylindrical bars during handling, but also effectively improve factory efficiency. The opening arc of most cylindrical bar handling clamps on the market is fixed. During the handling process, the clamps need to be constantly replaced according to the diameter of the cylindrical bars. It is difficult to uniformly handle cylindrical bars of different diameters. The operation is cumbersome and the work efficiency is relatively low. Therefore, a clamp that can adapt to cylindrical bars of different diameters is needed to achieve a high-precision and high-efficiency handling process. For example, a heavy-duty bar clamp disclosed in the authorization announcement number CN209425464U includes a clamp body frame, a spline shaft 1, a spline shaft 2, a cylinder push rod and a bar clamp; two shaft sleeves are symmetrically arranged on the left and right sides of the body frame, and the spline shaft 1 and the spline shaft 2 are respectively installed on the body frame in parallel through the shaft sleeves and can rotate relative to the shaft sleeves; the cylinder push rod extends or retracts, and drives the spline shaft 1 to rotate relative to the body frame through the connecting arm; the bar clamp includes two parts that are mirror-set and meshed with each other: a left meshing part and a right meshing part, and the two structures The two clamps are the same, both comprising an upper meshing head and a lower L-shaped claw, wherein the meshing head and the L-shaped claw are fixedly connected as a whole; the L-shaped claws of the left and right meshing parts are opened or retracted, and when the two L-shaped claws are retracted, the rod is grasped, and when the two L-shaped claws are released, the rod is released. However, during the transportation of cylindrical rods, the clamp can only transport cylindrical rods of uniform diameter, and it is difficult to adjust according to different diameters of cylindrical rods. When the diameter of the cylindrical rod is too large, it is difficult to grasp and clamp it. When the diameter of the cylindrical rod is too small, it is easy to deviate and vibrate during transportation, causing damage to the object and increasing the production cost of the enterprise. Utility Model Content

[0003] The utility model aims to provide a cylindrical bar material handling fixture with variable diameter, so as to solve the problem that the cylindrical bar material handling fixture in the above-mentioned background technology is difficult to be compatible with cylindrical bars of different diameters.

[0004] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0005] Preferably, the telescopic driving member is an electric push rod, a cylinder or a hydraulic cylinder.

[0006] Preferably, the clamp distance adjustment structure includes a movable block installed at the bottom end of the piston rod of the telescopic drive member, and a limit shaft is installed inside the movable block. The limit shaft passes through the outside of the movable block and is slidably connected to an inner wall of one side of the fixed frame.

[0007] Preferably, the clamping structure includes clamping arms installed at both ends of the surface of the movable column, a limiting hole is provided on the outer wall of the clamping arm close to the limiting axis, one end of the limiting axis passes through the outside of the limiting hole, and an arc-shaped clamping plate is fixed on the outer wall of the clamping arm close to the fixed frame.

[0008] Preferably, the arc-shaped clamping plate and the arc-shaped fixing block have the same arc curvature.

[0009] Preferably, the two clamping structures are both made of metal.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the variable diameter cylindrical bar handling fixture positions the cylindrical bar through the arc-shaped fixed block, and the next step is that the sensor senses the cylindrical bar, and then intelligently controls the contraction of the telescopic drive component, driving the two clamp distance adjustment structures to slide simultaneously toward the center line position of the fixed frame, thereby driving the two clamping structures to move synchronously centripetally until the surfaces of the two clamping structures gradually approach until they contact the cylindrical bar; through the intelligent linkage control of multiple sensors, the two clamping structures are moved to the appropriate position and intelligently braked, so that the fixture can adapt to cylindrical bars of different diameters, reduce the frequency of fixture replacement and thus improve production efficiency, and at the same time, the reasonable design of the two clamping structures can effectively prevent the shaking of the cylindrical bar during the handling process, ensure the stability of the cylindrical bar during transportation, reduce damage to the cylindrical bar, reduce the scrap rate, better protect the safety of operators, and also reduce enterprise costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0012] Figure 2 It is a side view structural schematic diagram of the utility model;

[0013] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 4 It is a schematic diagram of the top structure of the utility model.

[0015] In the figure: 1, fixing frame; 2, mounting hole; 3, telescopic driving member; 4, clamping arm; 5, limiting hole; 6, movable block; 601, limiting axis; 7, movable column; 8, arc clamping plate; 9, arc fixing block; 901, sensor; 10, truss. DETAILED DESCRIPTION

[0016] 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. 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.

[0017] See also Figure 1-4The utility model provides an embodiment: a cylindrical bar handling fixture with variable diameter, comprising a fixed frame 1, the outer walls on both sides of the fixed frame 1 are provided with mounting holes 2, a movable column 7 is installed between the two mounting holes 2 in the same horizontal direction, a telescopic driving member 3 is arranged on the top of the fixed frame 1, the telescopic driving member 3 is an electric push rod, a cylinder or a hydraulic cylinder, and two clamp distance adjustment structures are arranged at the bottom end of the piston rod of the telescopic driving member 3, which are used to clamp cylindrical bars of different diameters;

[0018] Two clamping structures are arranged inside the fixing frame 1. Both clamping structures are made of metal materials, such as iron-carbon alloy. The clamping structures are movably connected to the fixing frame 1 through movable columns 7. Limiting holes 5 are arranged on the inner walls on both sides of the clamping structures. The clamp distance adjustment structure penetrates to the outside of the limiting holes 5 and is slidably connected to the inner wall of the fixing frame 1. By driving the clamp distance adjustment structure to move, the clamping structure can easily adjust the arc of opening.

[0019] An arc-shaped fixing block 9 is installed at the bottom end of the fixing frame 1, and a sensor 901 is installed at the center position of the bottom end of the arc-shaped fixing block 9. A truss 10 for connecting another fixing frame 1 is installed on the outer wall of one side of the fixing frame 1. The two fixing frames 1 are symmetrically structured about the vertical center line of the truss 10, so that the cylindrical bar material is more stable during the handling process;

[0020] The clamp distance adjustment structure includes a movable block 6 installed at the bottom end of the piston rod of the telescopic driving member 3, and a limit shaft 601 is installed inside the movable block 6. The limit shaft 601 penetrates the outside of the movable block 6 and is slidably connected to the inner wall of one side of the fixed frame 1. The contraction of the telescopic driving member 3 drives the movable block 6 to slide toward the center line position of the fixed frame 1, and at the same time drives the two limit shafts 601 to move synchronously in the limit hole 5, thereby driving the clamping structure to move, so as to facilitate the clamping of cylindrical bars of different diameters;

[0021] The clamping structure includes a clamping arm 4 installed at both ends of the surface of the movable column 7. A limiting hole 5 is set on the outer wall of the clamping arm 4 on one side close to the limiting shaft 601. One end of the limiting shaft 601 passes through the outside of the limiting hole 5. An arc-shaped clamping plate 8 is fixed on the outer wall of the clamping arm 4 on one side close to the fixed frame 1. The arc curvature of the arc-shaped clamping plate 8 and the arc-shaped fixing block 9 are the same. When the limiting shaft 601 moves, the clamping arm 4 is driven to move synchronously, and then the arc-shaped clamping plate 8 is driven to move by the clamping arm 4. The cylindrical bar is clamped by the simultaneous movement of the two arc-shaped clamping plates 8.

[0022] When the embodiment of the present application is in use, the staff first places the clamp around the cylindrical bar, and then turns on the telescopic drive member 3. The contraction of the telescopic drive member 3 drives the two clamp distance adjustment structures to slide simultaneously toward the center line position of the fixed frame 1, thereby driving the two clamping structures to move synchronously. Since the clamping structure is movably connected to the fixed frame 1 through the movable column 7, when the telescopic drive member 3 continues to contract, the clamp distance adjustment structure will move toward the top of the fixed frame 1. At this time, the surfaces of the two clamping structures gradually approach until they contact the cylindrical bar. At the same time, the cylindrical bar is further fixed by the arc-shaped fixed block 9 to ensure the stability of the cylindrical bar during transportation and avoid the deviation and vibration of the cylindrical bar, thereby completing the clamping of the cylindrical bar; when the diameter of the cylindrical bar is large, the two clamp distance adjustment structures are simultaneously slid away from the center line position of the fixed frame 1 by extending the telescopic drive member 3, and then the two clamping structures are simultaneously moved away from the center line position of the fixed frame 1, thereby expanding the arc of the clamp opening, so as to clamp the cylindrical bar with a larger diameter.

Claims

1. A cylindrical bar handling fixture with variable diameter, characterized in that: The invention comprises a fixing frame (1), the outer walls of both sides of the fixing frame (1) are provided with mounting holes (2), a movable column (7) is installed between two mounting holes (2) in the same horizontal direction, a telescopic driving member (3) is arranged on the top of the fixing frame (1), two clamping distance adjustment structures are arranged at the bottom end of the piston rod of the telescopic driving member (3), two clamping structures are arranged inside the fixing frame (1), the clamping structures are movably connected to the fixing frame (1) through the movable column (7), and the two clamping structures are arranged on the fixing frame (1). A limiting hole (5) is provided on the inner wall of each side, the clamp distance adjustment structure passes through the outside of the limiting hole (5) and is slidably connected to the inner wall of the fixing frame (1), an arc-shaped fixing block (9) is installed at the bottom end of the fixing frame (1), and a sensor (901) is installed at the center position of the bottom end of the arc-shaped fixing block (9), and a truss (10) for connecting to another fixing frame (1) is installed on the outer wall of one side of the fixing frame (1), and the two fixing frames (1) are symmetrically structured about the vertical center line of the truss (10).

2. The cylindrical bar handling fixture with variable diameter according to claim 1 is characterized in that: The telescopic driving member (3) is an electric push rod, a cylinder or a hydraulic cylinder.

3. A cylindrical bar handling fixture with variable diameter according to claim 2, characterized in that: The clamp distance adjustment structure comprises a movable block (6) mounted at the bottom end of the piston rod of the telescopic driving member (3), a limit shaft (601) being mounted inside the movable block (6), the limit shaft (601) penetrating to the outside of the movable block (6) and being slidably connected to an inner wall of one side of the fixing frame (1).

4. The cylindrical bar handling fixture with variable diameter according to claim 3 is characterized in that: The clamping structure comprises clamping arms (4) mounted at both ends of the surface of the movable column (7); a limiting hole (5) is arranged on the outer wall of the clamping arm (4) on one side close to the limiting shaft (601); one end of the limiting shaft (601) passes through the outside of the limiting hole (5); and an arc-shaped clamping plate (8) is fixed on the outer wall of the clamping arm (4) on one side close to the fixing frame (1).

5. The cylindrical bar handling fixture with variable diameter according to claim 4, characterized in that: The arc-shaped clamping plate (8) and the arc-shaped fixing block (9) have the same arc curvature.

6. The cylindrical bar handling fixture with variable diameter according to claim 4, characterized in that: The two clamping structures are both made of metal.

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