A hydraulic clamping device for piston rod machining

Abstract

This utility model discloses a hydraulic clamping device for piston rod processing, relating to the field of piston rod processing technology. It includes a support plate and a worktable. The worktable is fixedly mounted on the top of the support plate. An inclined slope is fixedly mounted between the two support plates on one side of the worktable. An arc-shaped groove is provided at the top edge of the worktable for storing the piston rod to be clamped. A lateral clamping assembly is provided on the top of the worktable, which limits the piston rod within the arc-shaped groove. A rectangular groove is provided on the side of the worktable, and an automatic unloading assembly for automatically unloading the processed piston cap is provided inside the rectangular groove. The main structure of this utility model includes the lateral clamping assembly, which assists in clamping the piston rod with the arc-shaped groove on the top of the worktable. This allows for the fixed clamping of the piston rod when drilling a hole at one end. Furthermore, a blocking disc, one of the core components of the lateral clamping assembly, is located on the side of the arc-shaped groove to prevent displacement of the piston rod end due to axial cutting force during drilling.

Description

Technical Field

[0001] This utility model relates to the field of piston rod processing technology, and in particular to a hydraulic clamping device for piston rod processing. Background Technology

[0002] Drilling holes at the end of the piston rod serves two main purposes: providing a connection interface and reducing weight. The most common purpose is to machine threaded holes (internal threads) for rigidly connecting the piston rod to other moving parts (such as crossheads, connecting rods, or drill bits) and transmitting force via high-strength bolts. During drilling, the powerful cutting force can cause the slender piston rod to rotate, move, or vibrate, leading to hole misalignment, out-of-tolerance hole diameter, or even drill bit breakage. Clamping devices can securely fix the piston rod body, ensuring its absolute stability and precise positioning during machining.

[0003] In existing technologies, to prevent the piston rod from shifting laterally due to large axial forces during drilling, the clamping device usually has a blocking structure at the end. However, when drilling is completed for some large piston rods, workers need to lift the large piston rod a certain distance from the top of the clamping device before they can be unloaded. The large piston rod itself is heavy, and repeated manual lifting is labor-intensive. When workers are physically exhausted, the piston rod is prone to falling, seriously threatening the workers' personal safety (impact injuries, crush injuries, etc.). Summary of the Invention

[0004] The purpose of this invention is to solve the problem in the prior art where, in order to prevent the piston rod from shifting laterally due to large axial forces during drilling, the clamping device usually has a blocking structure at the end. However, when drilling is completed for some large piston rods, workers need to lift the large piston rod from the top of the clamping device a certain distance before it can be unloaded. The large piston rod itself is heavy, and the manual lifting is labor-intensive. When the worker is physically exhausted, the piston rod is prone to falling, seriously threatening the worker's personal safety. Therefore, this invention proposes a hydraulic clamping device for piston rod processing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hydraulic clamping device for processing piston rods includes a support plate and a worktable. The worktable is fixedly mounted on the top of the support plate. An inclined slope is fixedly mounted between the two support plates on one side of the worktable. An arc-shaped groove is provided at the top edge of the worktable for storing the piston rod to be clamped. A lateral clamping assembly is provided on the top of the worktable, which limits the piston rod inside the arc-shaped groove. A rectangular groove is opened on the side of the worktable, and an automatic unloading assembly for automatically unloading the processed piston cap is provided inside the rectangular groove.

[0007] Optionally, the lateral clamping assembly includes a blocking plate, a clamping rod, and a clamping cylinder. One end of the clamping cylinder is rotatably connected to the side of the fixed base, the fixed base is fixedly mounted on the top of the worktable, and one end of the clamping rod is rotatably connected to the top of the worktable.

[0008] Optionally, the bottom of the clamping rod is provided with an arc-shaped surface, and a transverse groove is provided on the top side of the clamping rod. A downward column is movably inserted into the side of the transverse groove, and the side of the downward column is fixedly connected to the output end of the clamping cylinder.

[0009] Optionally, the automatic unloading assembly includes an extension plate, a common shaft, a driven gear, a driving gear, and a switching motor, with the switching motor fixedly installed on the outer side of the rectangular groove.

[0010] Optionally, a drive gear is fixedly provided at the output end of the switching motor, and a common shaft is rotatably connected to one side of the drive gear in the rectangular slot. A driven gear is fixedly provided at the end of the common shaft, and the driven gear meshes with the drive gear.

[0011] Optionally, an extension plate is fixedly provided at the other end of the common shaft, and a discharge cylinder is fixedly provided at the bottom of the extension plate. A blocking disc is fixedly provided at the end of the common shaft near the driven gear, and the blocking disc is attached to one side of the arc-shaped groove.

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

[0013] 1. The main structure of this utility model includes a lateral clamping assembly. The lateral clamping assembly and the arc-shaped groove on the top of the worktable assist in clamping, which can fix and clamp the piston rod when drilling a hole at one end. The blocking plate, one of the core components of the lateral clamping assembly, is set on the side of the arc-shaped groove to prevent the piston rod from shifting due to axial cutting force when drilling.

[0014] 2. This utility model has an automatic unloading component on the top of the workbench. The automatic unloading component is connected to the blocking plate. After the piston rod completes the end drilling work on the top of the workbench, the automatic unloading component will drive the blocking plate to move away from the side of the arc groove, and drive the unloading cylinder of the automatic unloading component to move to the other side of the arc groove, thus completing the automatic unloading of the piston rod. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 for Figure 1 Another perspective structural diagram.

[0017] Figure 3 for Figure 2 Another perspective structural diagram.

[0018] Figure 4 This is a schematic diagram of the automatic unloading assembly.

[0019] In the diagram: 1. Clamping rod; 2. Lowering column; 3. Horizontal movement groove; 4. Worktable; 41. Arc groove; 42. Rectangular groove; 5. Support plate; 6. Inclined slope; 7. Fixed seat; 8. Clamping cylinder; 9. Switching motor; 10. Drive gear; 11. Unloading cylinder; 12. Extension plate; 13. Common shaft; 131. Blocking disc; 14. Driven gear. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Reference Figure 1-4 A hydraulic clamping device for processing piston rods includes a support plate 5 and a worktable 4. The worktable 4 is fixedly installed on the top of the support plate 5. There are two support plates 5. An inclined slope 6 is fixedly installed between the two support plates 5 on one side of the worktable 4. An arc-shaped groove 41 is provided at the top edge of the worktable 4 for storing the piston rod to be clamped. A lateral clamping assembly is provided on the top of the worktable 4, which limits the piston rod inside the arc-shaped groove 41.

[0023] The lateral clamping assembly includes a blocking plate 131, a clamping rod 1, and a clamping cylinder 8. One end of the clamping cylinder 8 is rotatably connected to the side of a fixed base 7, which is fixedly mounted on the top of the worktable 4. One end of the clamping rod 1 is rotatably connected to the top of the worktable 4. The bottom of the clamping rod 1 is arc-shaped, and a transverse groove 3 is provided on the top side of the clamping rod 1. A downward column 2 is movably inserted into the side of the transverse groove 3. The side of the downward column 2 is fixedly connected to the output end of the clamping cylinder 8. When the clamping cylinder 8 extends and drives the downward column 2 to move along the transverse groove 3, it will cause the clamping rod 1 to rotate along its axis. It should be added that, according to the reference... Figure 1 The height of the shaft of clamping rod 1 is lower than the height of the horizontal axis of the output end of clamping cylinder 8.

[0024] A rectangular slot 42 is provided on the side of the workbench 4. An automatic unloading component is installed inside the rectangular slot 42 to automatically unload the piston cover after processing. The automatic unloading component includes an extension plate 12, a common shaft 13, a driven gear 14, a driving gear 10, and a switching motor 9. The switching motor 9 is fixedly installed on the outer side of the rectangular slot 42. The driving gear 10 is fixedly installed at the output end of the switching motor 9. The common shaft 13 is rotatably connected to the side of the rectangular slot 42 and the driving gear 10. The driven gear 14 is fixedly installed at the end of the common shaft 13 and meshes with the driving gear 10.

[0025] An extension plate 12 is fixedly installed at the other end of the common shaft 13. A discharge cylinder 11 is fixedly installed at the bottom of the extension plate 12. A blocking plate 131 is fixedly installed at the end of the common shaft 13 near the driven gear 14. The blocking plate 131 fits against one side of the arc groove 41. The diameter of the driven gear 14 is smaller than the diameter of the driving gear 10. The switching motor 9 is a servo motor. Its rotation angle can be set to ninety degrees by setting its controller. Under the meshing of the driving gear 10 and the driven gear 14, the switching motor 9 can drive the common shaft 13 to rotate slowly.

[0026] It should be added that this utility model is applicable to the drilling work at the end of the piston rod blank, so the collision problem between multiple piston rod blanks is not considered when the automatic unloading assembly unloads the piston rod blank.

[0027] The specific implementation steps and principles of this utility model are as follows:

[0028] refer to Figure 3 In the initial state, the unloading cylinder 11 is in the retracted state and is located diagonally below one end of the arc groove 41. At this time, the blocking plate 131 is located on one side of the arc groove 41. The worker inserts one end of the large piston rod into the side of the arc groove 41 until the one end of the large piston rod abuts against the blocking plate 131. At this time, the clamping cylinder 8 is activated. The clamping cylinder 8 extends and drives the lower column 2 to move to the limit position of the transverse groove 3. At this time, the clamping rod 1 is in a horizontal state. The clamping rod 1 cooperates with the arc groove 41 to clamp the piston rod. After the drilling device completes drilling on one end of the piston rod, the switching motor 9 is activated. The switching motor 9 drives the common shaft 13 to rotate 90 degrees through the driving gear 10 and the driven gear 14. The blocking plate 131 rotates to the top of the inclined slope 6. The unloading cylinder 11 rotates to one end of the arc groove 41. At this time, the unloading cylinder 11 is activated. The unloading cylinder 11 extends and pushes the large piston rod away from the top of the arc groove 41.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hydraulic piston rod machining clamping device comprising a support plate (5), a worktable (4), characterized in that, A workbench (4) is fixedly provided on the top of the support plate (5). An inclined slope (6) is fixedly provided between the two support plates (5) on one side of the workbench (4). An arc groove (41) is provided at the top edge of the workbench (4) for storing the piston rod to be clamped. A lateral clamping assembly is provided on the top of the workbench (4). The lateral clamping assembly limits the piston rod inside the arc groove (41). The workbench (4) has a rectangular groove (42) on its side, and an automatic unloading component for automatically unloading the piston cover after processing is provided inside the rectangular groove (42).

2. A hydraulic piston rod clamping device according to claim 1, characterized in that The lateral clamping assembly includes a blocking plate (131), a clamping rod (1), and a clamping cylinder (8). One end of the clamping cylinder (8) is rotatably connected to the side of the fixed seat (7). The fixed seat (7) is fixedly installed on the top of the workbench (4). One end of the clamping rod (1) is rotatably connected to the top of the workbench (4).

3. A hydraulic piston rod clamping device according to claim 2, characterized in that The bottom of the clamping rod (1) is set as an arc surface, and a transverse groove (3) is opened on the top side of the clamping rod (1). A downward column (2) is movably inserted into the side of the transverse groove (3), and the side of the downward column (2) is fixedly connected to the output end of the clamping cylinder (8).

4. The hydraulic piston rod clamping device according to claim 1, characterized in that The automatic unloading assembly includes an extension plate (12), a common shaft (13), a driven gear (14), a driving gear (10), and a switching motor (9). The switching motor (9) is fixedly installed on the outer side of the rectangular groove (42).

5. A hydraulic clamping device for piston rod machining according to claim 4, characterized in that, The output end of the switching motor (9) is fixedly provided with a drive gear (10), and the rectangular slot (42) is rotatably connected to a common shaft (13) on one side of the drive gear (10). A driven gear (14) is fixedly provided at the end of the common shaft (13), and the driven gear (14) meshes with the drive gear (10).

6. A hydraulic clamping device for piston rod machining according to claim 5, characterized in that, An extension plate (12) is fixedly provided at the other end of the common shaft (13). A discharge cylinder (11) is fixedly provided at the bottom of the extension plate (12). A blocking disc (131) is fixedly provided at the end of the common shaft (13) near the driven gear (14). The blocking disc (131) is attached to one side of the arc groove (41).

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