Hanging clamp for planer type milling machine

Abstract

The utility model discloses a crane fixture for planer type milling machines, which relates to the technical field of fixtures, and comprises a moving frame, a driving rod is movably connected in the moving frame, a group of symmetrical sliding blocks are slidably connected in the moving frame, a group of symmetrical threads are arranged on the outer side of the driving rod, the driving rod penetrates through the sliding blocks, and the driving rod penetrates through the sliding blocks. And the driving rods are in threaded connection with the sliding blocks, and mounting frames are fixedly connected to the bottoms of the sliding blocks. The control assembly drives the connecting rod and the rotating column to rotate synchronously, so that the clamping belt rotates around the fixing frame, and the clamping belt is tightly attached to the side edge of a workpiece so as to control the workpiece to move forwards, so that the long workpiece can directly move forwards on a milling machine table, and the working efficiency is improved. Therefore, the milling cutter can conveniently process the unprocessed part of the workpiece, the movement of the workpiece does not need to be controlled through the movement of the whole clamp, and the processing efficiency of the long-strip-shaped workpiece is improved.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, specifically a gantry milling machine gantry crane clamp. Background Technology

[0002] Gantry milling machines are a type of large CNC machine tool commonly used in modern machining. They are mainly used for machining large workpieces on flat surfaces and complex curved surfaces. During the machining process of gantry milling machines, the fixing and positioning of the workpiece are key factors to ensure machining accuracy and efficiency. Traditional workpiece fixing methods often use integral fixtures, but this method has certain limitations when machining long and narrow workpieces.

[0003] However, when machining long and narrow workpieces, existing gantry milling machines usually require the entire fixture to be moved to adjust the machining position of the workpiece. This not only reduces machining efficiency, but may also lead to a decrease in machining accuracy due to vibration during the movement of the fixture. In addition, during the machining process, the workpiece is usually held by pressing it from above, and its stability is usually maintained by the workpiece's own weight, which is not very effective. Therefore, a gantry milling machine overhead crane fixture is needed to solve the shortcomings of the existing fixture. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a gantry milling machine gantry crane fixture. Through the set control components, it helps to move long workpieces directly forward on the milling machine worktable, thereby facilitating the milling cutter to process the unprocessed part of the workpiece. This eliminates the need to control the movement of the workpiece through the movement of the entire fixture, thus improving the processing efficiency of long and narrow workpieces. Through the set holding components, the pressure rollers hold the workpiece, which helps to improve the stability of workpiece milling and avoid longitudinal displacement of the workpiece during processing.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A gantry milling machine overhead crane fixture includes a movable frame, a drive rod movably connected inside the movable frame, a set of symmetrical sliders slidably connected inside the movable frame, a set of symmetrical threads on the outer side of the drive rod, the drive rod passing through the sliders and being threadedly connected to the sliders, a mounting bracket fixedly connected to the bottom of each slider, a guide post fixedly connected to the bottom end of each mounting bracket, a clamping assembly fixedly connected to the bottom end of each guide post, a control assembly provided at the bottom of the movable frame, the control assembly being connected to the clamping assembly, and a pressing assembly provided on the opposite side of each guide post for pressing the top of the workpiece.

[0009] Furthermore, the clamping assembly includes a fixed frame, a rotating column, and a clamping strap. The rotating columns are symmetrically arranged, and the clamping strap is sleeved on the outside of the rotating columns. The rotating columns and the clamping strap constitute a belt drive structure. The rotating columns are rotatably connected to the fixed frame, and the clamping strap is movably sleeved on the outside of the fixed frame. The top end of the fixed frame is fixedly connected to the bottom end of the guide column.

[0010] Furthermore, the control assembly includes a control rod, a worm gear, a worm wheel, and a connecting rod. The worm gear, worm wheel, and connecting rod are symmetrically arranged. The control rod passes through the worm gear and is movably connected to the worm gear. The connecting rods pass through the axis of the worm wheel and are fixedly connected to the worm wheel. The worm gear meshes with the worm wheel.

[0011] Furthermore, a set of symmetrical support cylinders are fixedly connected to the mounting bracket, and the two ends of the worm gear pass through the support cylinders respectively, and the support cylinders are rotatably connected to the worm gear.

[0012] Furthermore, the connecting rod passes through the mounting frame and is movably connected to the mounting frame via a bearing, with the top end of one of the rotating columns fixedly connected to the bottom end of the connecting rod.

[0013] Furthermore, a servo motor is fixedly connected to the outer side of the movable frame, and the output end of the servo motor is fixedly connected to the end of the drive rod. A servo motor is fixedly connected to the outer side of the movable frame, and the output end of the servo motor is fixedly connected to the end of the control rod.

[0014] Furthermore, the pressing assembly includes a pressure plate, pressure rollers, and hydraulic rods. The pressure rollers are arranged in a linear array and are movably connected to the bottom end of the pressure plate via a rotating shaft. A guide groove is provided on the guide post, and one end of the pressure plate is slidably connected to the inside of the guide groove. The hydraulic rod is fixedly connected to the outside of the guide post, and the telescopic end of the hydraulic rod is fixedly connected to the top end of the pressure plate.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] I. This utility model uses a control component to drive the connecting rod and the rotating column to rotate synchronously, causing the clamping band to rotate around the fixed frame. Since the clamping band is in close contact with the side of the workpiece, the workpiece is moved forward. This helps to allow longer workpieces to move directly forward on the milling machine table, making it easier for the milling cutter to process the unprocessed part of the workpiece. This eliminates the need to control the movement of the workpiece by moving the entire fixture, thus improving the processing efficiency of long and narrow workpieces.

[0018] II. The present invention uses a pressure holding component to drive the pressure plate to move downward along the guide groove through a hydraulic rod until the pressure roller contacts the surface of the workpiece. When the clamping control moves the workpiece forward, the pressure roller rotates synchronously to follow the movement of the workpiece. By pressing the workpiece with the pressure roller, the stability of the workpiece milling is improved and longitudinal displacement of the workpiece is avoided during the processing. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0021] Figure 3 This is a schematic diagram of the clamping component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the control component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the pressing component structure of this utility model.

[0024] In the diagram: 1. Moving frame; 2. Drive rod; 3. Slider; 4. Mounting frame; 5. Guide column; 6. Clamping assembly; 601. Fixed frame; 602. Rotating column; 603. Clamping strap; 7. Control assembly; 701. Control rod; 702. Worm gear; 703. Worm wheel; 704. Connecting rod; 8. Pressing assembly; 801. Pressure plate; 802. Pressure roller; 803. Hydraulic rod; 9. Support cylinder; 10. Servo motor one; 11. Servo motor two; 12. Guide groove. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] like Figure 1-5As shown, this utility model provides a technical solution: a gantry milling machine overhead crane fixture, including a movable frame 1, which is part of the gantry milling machine, and the movement and lifting of the movable frame 1 are adjusted by the control mechanism on the milling machine. A drive rod 2 is movably connected inside the movable frame 1, and a set of symmetrical sliders 3 are slidably connected inside the movable frame 1. A set of symmetrical threads are opened on the outer side of the drive rod 2, the drive rod 2 passes through the sliders 3, and the drive rod 2 is threadedly connected to the sliders 3. The bottom of each slider 3 is fixedly connected to a mounting frame 4, and the bottom end of each mounting frame 4 is fixedly connected to a guide post 5. The bottom end of each guide post 5 is fixedly connected to a clamping assembly 6. When the drive rod 2 rotates, since the drive rod 2 is threadedly connected to the sliders 3, the movable frame 1 restricts the movement direction of the sliders 3, thereby causing the sliders 3 to move closer to each other, driving the mounting frame 4 and the guide post 5 to move closer to the side of the workpiece. A control assembly 7 is provided at the bottom of the movable frame 1, and the control assembly 7 is connected to the clamping assembly 6. A pressing assembly 8 is provided on the opposite side of each guide post 5 for pressing the top of the workpiece, thereby preventing longitudinal displacement of the workpiece during processing.

[0027] like Figure 1 and Figure 3 As shown, the clamping assembly 6 includes a fixed frame 601, a rotating column 602, and a clamping strap 603. The rotating columns 602 are symmetrically arranged, and the clamping strap 603 is sleeved on the outside of the rotating columns 602. The rotating columns 602 and the clamping strap 603 form a belt drive structure. The rotating columns 602 are rotatably connected to the fixed frame 601, and the clamping strap 603 is movably sleeved on the outside of the fixed frame 601. The top end of the fixed frame 601 is fixedly connected to the bottom end of the guide column 5.

[0028] The two rotating columns 602 rotate synchronously, thereby controlling the rotation of the clamping band 603 on the outside of the fixed frame 601. Several long strips are provided on the outside of the clamping band 603 to improve the tightness between the clamping band 603 and the side of the workpiece. The clamping band 603 is movably sleeved on the outside of the fixed frame 601. The clamping band 603 and the fixed frame 601 are integrated. Therefore, the clamping band 603 and the fixed frame 601 simultaneously clamp the side of the workpiece, thus having sufficient force to clamp the workpiece.

[0029] like Figure 1 , Figure 2 and Figure 4As shown, the control assembly 7 includes a control rod 701, a worm gear 702, a worm wheel 703, and a connecting rod 704. The worm gear 702, worm wheel 703, and connecting rod 704 are symmetrically arranged. The control rod 701 passes through the worm gear 702 and is movably connected to it. Because the control rod 701 and worm gear 702 pass through each other, when the mounting brackets 4 approach each other, the worm gear 702 can move along the control rod 701, thereby clamping the workpiece using the clamping belt 603. Simultaneously, the rotation of the worm gear 702 can be controlled by the control rod 701, achieving two operations that are interconnected and do not interfere with each other. The connecting rod 704 passes through the axis of the worm wheel 703, and the connecting rod 704 is connected to the worm wheel 703. The worm gear 702 is fixedly connected to the worm wheel 703. A set of symmetrical support cylinders 9 are fixedly connected to the mounting frame 4. Both ends of the worm gear 702 pass through the support cylinders 9, and the support cylinders 9 are rotatably connected to the worm gear 702. The connecting rod 704 passes through the mounting frame 4 and is movably connected to the mounting frame 4 through a bearing. The top end of one of the rotating columns 602 is fixedly connected to the bottom end of the connecting rod 704. A servo motor 10 is fixedly connected to the outside of the moving frame 1, and the output end of the servo motor 10 is fixedly connected to the end of the drive rod 2. A servo motor 11 is fixedly connected to the outside of the moving frame 1, and the output end of the servo motor 11 is fixedly connected to the end of the control rod 701.

[0030] The servo motor 11 is started, which drives the control lever 701 to rotate, thereby causing the worm gear 702 to rotate around the axis of the support cylinder 9. Since the worm gear 702 meshes with the worm wheel 703, it drives the connecting rod 704 and the rotating column 602 to rotate synchronously, causing the clamping belt 603 to rotate around the fixed frame 601. Since the clamping belt 603 is in close contact with the side of the workpiece, it controls the workpiece to move forward. This helps to allow longer workpieces to move directly forward on the milling machine table, so that the milling cutter can process the unprocessed part of the workpiece. This eliminates the need to control the movement of the workpiece by moving the entire fixture, thus improving the processing efficiency of long and narrow workpieces.

[0031] like Figure 1 and Figure 5 As shown, the pressing assembly 8 includes a pressure plate 801, pressure rollers 802, and hydraulic rods 803. The pressure rollers 802 are arranged in a linear array and are movably connected to the bottom end of the pressure plate 801 via a rotating shaft. A guide groove 12 is provided on the guide post 5, and one end of the pressure plate 801 is slidably connected to the inside of the guide groove 12. The hydraulic rod 803 is fixedly connected to the outside of the guide post 5, and the telescopic end of the hydraulic rod 803 is fixedly connected to the top end of the pressure plate 801.

[0032] The hydraulic rod 803 drives the pressure plate 801 to move downward along the guide groove 12 until the pressure roller 802 contacts the surface of the workpiece. When the clamping belt 603 controls the workpiece to move forward, the pressure roller 802 rotates synchronously to follow the movement of the workpiece. The pressure roller 802 holds the workpiece, which helps to improve the stability of the workpiece milling and avoids longitudinal displacement of the workpiece during the processing.

[0033] Working principle: In use, firstly, the top of the moving frame 1 is connected to the moving device of the gantry milling machine. The moving frame 1 is moved above the workpiece. Then, the servo motor 10 is started, driving the drive rod 2 to rotate. Since the drive rod 2 is threadedly connected to the slider 3, the moving frame 1 restricts the movement direction of the slider 3, causing the sliders 3 to move closer together. This moves the mounting frame 4 and guide post 5 closer to the side of the workpiece until the clamping band 603 contacts the side of the workpiece. During the process of the mounting frames 4 moving closer together, the worm gear 702 moves along the control rod 701, and the moving device controls the moving frame 1 to lift upwards, thereby adjusting the workpiece to the working position. The servo motor 11 is started, which drives the control lever 701 to rotate, thereby causing the worm gear 702 to rotate around the axis of the support cylinder 9. Since the worm gear 702 meshes with the worm wheel 703, it drives the connecting rod 704 and the rotating column 602 to rotate synchronously, causing the clamping belt 603 to rotate around the fixed frame 601. The clamping belt 603 is in close contact with the side of the workpiece, thereby controlling the workpiece to move forward. In addition, the hydraulic rod 803 drives the pressure plate 801 to move downward along the guide groove 12 until the pressure roller 802 abuts against the surface of the workpiece. When the clamping belt 603 controls the workpiece to move forward, the pressure roller 802 rotates synchronously, thereby following the movement of the workpiece.

[0034] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A gantry milling machine overhead crane fixture, comprising a moving frame (1), characterized in that: The movable frame (1) is internally connected to a drive rod (2), and the movable frame (1) is internally connected to a set of symmetrical sliders (3). The drive rod (2) has a set of symmetrical threads on its outer side. The drive rod (2) passes through the slider (3) and is threadedly connected to the slider (3). The bottom of each slider (3) is fixedly connected to a mounting bracket (4). The bottom of each mounting bracket (4) is fixedly connected to a guide post (5). The bottom of each guide post (5) is fixedly connected to a clamping assembly (6). The bottom of the movable frame (1) is provided with a control assembly (7), which is connected to the clamping assembly (6). The opposite sides of each guide post (5) are provided with a pressing assembly (8) for pressing the top of the workpiece.

2. The gantry milling machine gantry crane fixture according to claim 1, characterized in that: The clamping assembly (6) includes a fixed frame (601), a rotating column (602), and a clamping strap (603). The rotating column (602) is symmetrically arranged, and the clamping strap (603) is sleeved on the outside of the rotating column (602). The rotating column (602) and the clamping strap (603) constitute a belt drive structure. The rotating column (602) is rotatably connected to the fixed frame (601), and the clamping strap (603) is movably sleeved on the outside of the fixed frame (601). The top end of the fixed frame (601) is fixedly connected to the bottom end of the guide column (5).

3. A gantry milling machine overhead crane fixture according to claim 2, characterized in that: The control component (7) includes a control rod (701), a worm gear (702), a worm wheel (703), and a connecting rod (704). The worm gear (702), the worm wheel (703), and the connecting rod (704) are symmetrically arranged. The control rod (701) passes through the worm gear (702) and is movably connected to the worm gear (702). The connecting rod (704) passes through the axis of the worm wheel (703) and is fixedly connected to the worm wheel (703). The worm gear (702) meshes with the worm wheel (703).

4. A gantry milling machine overhead crane fixture according to claim 3, characterized in that: A set of symmetrical support cylinders (9) are fixedly connected to the mounting bracket (4). The two ends of the worm (702) pass through the support cylinders (9) respectively, and the support cylinders (9) and the worm (702) are rotatably connected.

5. A gantry milling machine gantry crane fixture according to claim 4, characterized in that: The connecting rod (704) passes through the mounting frame (4) and is movably connected to the mounting frame (4) via a bearing. The top end of one of the rotating columns (602) is fixedly connected to the bottom end of the connecting rod (704).

6. A gantry milling machine gantry crane fixture according to claim 5, characterized in that: A servo motor (10) is fixedly connected to the outside of the mobile frame (1), and the output end of the servo motor (10) is fixedly connected to the end of the drive rod (2). A servo motor (11) is fixedly connected to the outside of the mobile frame (1), and the output end of the servo motor (11) is fixedly connected to the end of the control rod (701).

7. A gantry milling machine overhead crane fixture according to claim 1, characterized in that: The pressing assembly (8) includes a pressure plate (801), pressure rollers (802) and a hydraulic rod (803). The pressure rollers (802) are arranged in a linear array. Each pressure roller (802) is movably connected to the bottom end of the pressure plate (801) through a rotating shaft. The guide post (5) is provided with a guide groove (12), and one end of the pressure plate (801) is slidably connected to the inside of the guide groove (12). The hydraulic rod (803) is fixedly connected to the outside of the guide post (5), and the telescopic end of the hydraulic rod (803) is fixedly connected to the top end of the pressure plate (801).

Images