Hydraulic centering pull-down vise mechanism

Abstract

This utility model discloses a hydraulically aligned downward-pulling vise mechanism, relating to the field of vise technology. It includes a base plate, with a vise body mounted on top of the base plate. A clamping assembly is located in the middle of the vise body. The clamping assembly includes a linear hydraulic cylinder, a drive rod on top of the linear hydraulic cylinder, a pull rod and a limit seat on top of the drive rod, a linkage connecting plate outside the pull rod, and a downward-pulling wedge outside the linkage connecting plate. The top of the downward-pulling wedge has a groove. This utility model improves the stability of the device by slidably connecting two downward-pulling wedges in the middle of the vise body, preventing displacement between the downward-pulling wedges and the jaws mounted on top of the wedges, which would affect clamping stability. Furthermore, the movable connection between the downward-pulling wedges and the jaws allows for convenient clamping of different flattening operations, improving the ease of use of the device.

Description

Technical Field

[0001] This utility model relates to the field of bench vise technology, and in particular to a hydraulic centering pull-down bench vise mechanism. Background Technology

[0002] A bench vise is a commonly used clamping tool in mechanical manufacturing. It can be a random accessory of a machine tool used to clamp workpieces for cutting; it can also be used to clamp workpieces for manual processing. In the past, vises and bench vises were commonly seen in machining scenarios to clamp products for processing. However, they all have their drawbacks. Vises cannot be centered, can only be used on one side, have poor precision, lack variety of jaws, and tend to tilt backward after clamping the workpiece.

[0003] While centering vises offer advantages such as centering and high precision, they can also tilt backward, posing a risk when used with non-standard products. Therefore, we have specifically designed a centering pull-down vise mechanism that combines these advantages with innovative features. It can be used in various applications and can be adapted to be used with multiple products by changing the base plate and jaws. The clamping force is selected and changed via a bottom linear hydraulic cylinder. It provides both self-centering and pull-down force, subjecting the product to two different forces, thus eliminating the problems caused by the backward tilting of conventional vises. Utility Model Content

[0004] The main purpose of this invention is to provide a hydraulically aligned pull-down vise mechanism, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A hydraulic centering pull-down vise mechanism includes a base plate, a vise body is provided on the top of the base plate, a clamping component is provided in the middle of the vise body, a mounting groove is provided in the middle of the vise body, and limit sliding grooves are provided on both sides of the mounting groove. An oil nozzle mounting hole and a lubricating oil nozzle are provided on the side of the vise body. The clamping assembly includes a linear hydraulic cylinder, a drive rod is provided at the top of the linear hydraulic cylinder, and a pull rod and a limiting seat are provided at the top of the drive rod. A linkage connecting plate is provided on the outside of the pull rod, and a pull-down wedge is provided on the outside of the linkage connecting plate. A groove is provided at the top of the pull-down wedge.

[0006] Preferably, the linear cylinder is provided with a drive rod at the top, and a pull rod is installed at the top of the drive rod by bolts. The top end of the pull rod is fixedly connected to a limit seat, and the outer wall of the limit seat is provided with a threaded groove. A linkage connecting plate is sleeved on the outer wall of the pull rod, and a through hole is opened in the middle of the linkage connecting plate, and the pull rod is inserted into the middle of the through hole.

[0007] Preferably, one side of the linkage connecting plate is externally engaged with a pull-down wedge, and there are two pull-down wedges, which are symmetrically distributed on both sides of the linkage connecting plate. The pull-down wedge has a slot on the side near the linkage connecting plate, and the linkage connecting plate is engaged inside the slot. The pull-down wedge is set in an inclined state.

[0008] Preferably, a claw mounting groove is provided on one side of the top of the pull-down wedge, and the claw mounting groove is located on the opposite side of the two pull-down wedges. A groove is provided on the middle outer wall of the pull-down wedge, and the groove is arranged in a circumferential shape on the outer wall of the pull-down wedge.

[0009] Preferably, the vise body has a mounting groove in the middle, and a pull rod and a limiting seat are installed inside the mounting groove. A limiting sliding groove is provided on one side of the top of the vise body, and there are two limiting sliding grooves, which are symmetrically distributed on both sides of the vise body. The pull-down wedge is slidably connected inside the limiting sliding groove, and the pull-down wedge and the limiting sliding groove are correspondingly set.

[0010] Preferably, the vise body has two oil nozzle mounting holes on its side, which are symmetrically distributed on both sides of the vise body. The oil nozzle mounting holes are corresponding to the limiting sliding grooves and are connected to the limiting sliding grooves. A lubricating oil nozzle is installed inside the oil nozzle mounting hole, and the lubricating oil nozzle is corresponding to the groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In this invention, two downward-pulling wedges are slidably connected in the middle of the vise body, thereby improving the stability of the device and preventing displacement of the downward-pulling wedges and the jaws installed on top of the wedges, which would affect the stability of clamping. Furthermore, the downward-pulling wedges and jaws are movably connected, making it easy to clamp different flattening methods and improving the ease of use of the device. The clamping force is controlled by a linear hydraulic cylinder at the bottom, which provides both self-centering and downward pulling force, subjecting the product to two different forces and eliminating the inconvenience caused by the backward tilting of conventional vises. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model; Figure 2 This is a structural schematic diagram of the device from below; Figure 3 This is a schematic diagram of the unfolded structure of the device of this utility model; Figure 4 This is a structural schematic diagram of the cross-sectional view of the main body of the bench vise of this utility model.

[0013] In the diagram: 1. Bench vise body; 2. Limiting sliding groove; 3. Mounting groove; 4. Oil nozzle mounting hole; 5. Lubricating oil nozzle; 6. Linear cylinder; 7. Drive rod; 8. Pull rod; 9. Limiting seat; 10. Linkage connecting plate; 11. Through hole; 12. Pull-down wedge; 13. Slot; 14. Gripper mounting groove; 15. Clamping assembly; 16. Base plate; 17. Groove. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the hydraulic centering pull-down vise mechanism includes a base plate 16, a vise body 1 on the top of the base plate 16, a clamping assembly 15 in the middle of the vise body 1, a mounting groove 3 in the middle of the vise body 1, and limit sliding grooves 2 on both sides of the mounting groove 3. Oil nozzle mounting holes 4 and lubrication nozzles 5 are provided on the sides of the vise body 1. The mounting groove 3 in the middle of the vise body 1 houses a pull rod 8 and a limit seat 9. A limit sliding groove 2 is provided on one side of the top of the vise body 1. There are two 2, which are symmetrically distributed on both sides of the vise body 1. The pull-down wedge 12 is slidably connected to the inside of the limiting sliding groove 2, and the pull-down wedge 12 and the limiting sliding groove 2 are correspondingly set. There are two oil nozzle mounting holes 4 on the side of the vise body 1, which are symmetrically distributed on both sides of the vise body 1. The oil nozzle mounting holes 4 are correspondingly set to the limiting sliding groove 2, and the oil nozzle mounting holes 4 are connected to the limiting sliding groove 2. The oil nozzle mounting holes 4 are equipped with lubricating oil nozzles 5, and the lubricating oil nozzles 5 are correspondingly set to the grooves 17. The clamping assembly 15 includes a linear hydraulic cylinder 6. A drive rod 7 is provided on the top of the linear hydraulic cylinder 6, and a pull rod 8 and a limiting seat 9 are provided on the top of the drive rod 7. A linkage connecting plate 10 is provided on the outside of the pull rod 8, and a pull-down wedge 12 is provided on the outside of the linkage connecting plate 10. A groove 17 is provided on the top of the pull-down wedge 12. The drive rod 7 is provided on the top of the linear hydraulic cylinder 6, and a pull rod 8 is installed on the top of the drive rod 7 by bolts. The top of the pull rod 8 is fixedly connected to the limiting seat 9, and a threaded groove is provided on the outer wall of the limiting seat 9. The linkage connecting plate 10 is sleeved on the outer wall of the pull rod 8. A through hole 11 is opened in the middle of the linkage connecting plate 10, and the pull rod 8 is inserted into the middle of the through hole 11. A pull-down wedge 12 is snapped on one side of the linkage connecting plate 10, and there are two pull-down wedges 12, which are symmetrically distributed on both sides of the linkage connecting plate 10. A slot 13 is provided on the side of the pull-down wedge 12 near the linkage connecting plate 10, and the linkage connecting plate 10 is engaged inside the slot 13. The pull-down wedge 12 is set in an inclined state. A claw mounting groove 14 is provided on the top side of the pull-down wedge 12, and the claw mounting groove 14 is located on the opposite side of the two pull-down wedges 12. A groove 17 is provided on the middle outer wall of the pull-down wedge 12, and the groove 17 is arranged in a circumferential shape on the outer wall of the pull-down wedge 12. The two pull-down wedges 12 are slidably connected to the platform. The middle of the clamp body 1 improves the stability of the device and prevents displacement of the pull-down wedge 12 and the jaws installed on the top of the pull-down wedge 12, which would affect the stability of the clamping. The pull-down wedge 12 and the jaws are movably connected, which makes it easy to clamp different flattening methods and improves the ease of use of the device. The clamping force is controlled by the linear hydraulic cylinder 6 set at the bottom. It is self-centering and has a pull-down force, so that the product is subjected to two different forces, which eliminates the trouble caused by the backward tilt of conventional bench vises.

[0016] It should be noted that this utility model is a hydraulically aligned pull-down vise mechanism. In use, the pull rod 8 passes through the limiting seat 9, and the two sides of the linkage connecting plate 10 are engaged with the slots 13 on one side of the two pull-down wedges 12. The linkage connecting plate 10 and the pull-down wedges 12 are inserted into the vise body 1. The pull rod 8 passes through the through hole 11 in the middle of the linkage connecting plate 10, and the bottom of the pull-down wedges 12 is connected to the linear hydraulic cylinder 6 via the pull rod 8. Oil enters the linear hydraulic cylinder 6 through the oil passage, thereby causing the linear hydraulic cylinder 6 to drive the pull rod 8, the drive rod 7, and the linkage connecting plate 10 to rotate. This causes the linkage connecting plate 10 to drive the pull-down wedges 12 to move inside the vise body 1. The side of the vise body 1 is equipped with an oil nozzle mounting hole 4 and a lubricating oil nozzle 5. The lubricating oil nozzle 5 lubricates the vise body 1 and the pull-down wedge 12 to prevent the pull-down wedge 12 from getting stuck during use. The lubricating oil flows through the groove 17 set on the outer wall of the pull-down wedge 12 to improve the lubrication effect. The top side of the pull-down wedge 12 is provided with a claw mounting groove 14, which facilitates the installation of various claws on the pull-down wedge 12 and improves the ease of use of the device. A base plate 16 is set between the linear cylinder 6 and the vise body 1. The length of the pull rod 8 can be modified to match the thickness of the corresponding base plate 16 to form a centered pull-down force vise mechanism.

[0017] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulically aligned pull-down vise mechanism, including a base plate (16), characterized in that: The top of the base plate (16) is provided with a vise body (1), and a clamping component (15) is provided in the middle of the vise body (1). The middle of the vise body (1) is provided with a mounting groove (3), and the two sides of the mounting groove (3) are provided with limit sliding grooves (2). The side of the vise body (1) is provided with an oil nozzle mounting hole (4) and a lubricating oil nozzle (5). The clamping assembly (15) includes a linear hydraulic cylinder (6), a drive rod (7) is provided on the top of the linear hydraulic cylinder (6), and a pull rod (8) and a limiting seat (9) are provided on the top of the drive rod (7). A linkage connecting plate (10) is provided on the outside of the pull rod (8), and a pull-down wedge (12) is provided on the outside of the linkage connecting plate (10). A groove (17) is provided on the top of the pull-down wedge (12).

2. The hydraulic centering pull-down vise mechanism according to claim 1, characterized in that: The top of the linear cylinder (6) is provided with a drive rod (7), and the top of the drive rod (7) is bolted with a pull rod (8). The top of the pull rod (8) is fixedly connected to a limit seat (9), and the pull rod (8) is fastened to the outer wall of the limit seat (9) with a threaded groove. A linkage connecting plate (10) is sleeved on the outer wall of the pull rod (8). A through hole (11) is opened in the middle of the linkage connecting plate (10), and the pull rod (8) is inserted into the middle of the through hole (11).

3. The hydraulic centering pull-down vise mechanism according to claim 2, characterized in that: The linkage connecting plate (10) has a pull-down wedge (12) on one side of its exterior. There are two pull-down wedges (12), which are symmetrically distributed on both sides of the linkage connecting plate (10). The pull-down wedge (12) has a slot (13) on the side of the linkage connecting plate (10) close to the linkage connecting plate (10), and the linkage connecting plate (10) is engaged in the slot (13). The pull-down wedge (12) is set in an inclined state.

4. The hydraulic centering pull-down vise mechanism according to claim 3, characterized in that: The top side of the pull-down wedge (12) is provided with a claw mounting groove (14), and the claw mounting groove (14) is located on the opposite side of the two pull-down wedges (12). The middle outer wall of the pull-down wedge (12) is provided with a groove (17), and the groove (17) is arranged in a circumferential manner on the outer wall of the pull-down wedge (12).

5. The hydraulic centering pull-down vise mechanism according to claim 1, characterized in that: The vise body (1) has an installation groove (3) in the middle, and a pull rod (8) and a limiting seat (9) are installed inside the installation groove (3). A limiting sliding groove (2) is opened on one side of the top of the vise body (1), and there are two limiting sliding grooves (2), which are symmetrically distributed on both sides of the vise body (1). The pull-down wedge (12) is slidably connected inside the limiting sliding groove (2), and the pull-down wedge (12) and the limiting sliding groove (2) are correspondingly set.

6. The hydraulic centering pull-down vise mechanism according to claim 1, characterized in that: The vise body (1) has two oil nozzle mounting holes (4) on its side, which are symmetrically distributed on both sides of the vise body (1). The oil nozzle mounting holes (4) are correspondingly set with the limiting sliding groove (2) and are connected to the limiting sliding groove (2). A lubricating oil nozzle (5) is installed inside the oil nozzle mounting hole (4), and the lubricating oil nozzle (5) is correspondingly set with the groove (17).

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