Clamping device for hardware product machining

Abstract

The utility model discloses a clamping device for processing hardware products, which comprises a working table, at least two cylinders are mounted on the working table, the two cylinders are oppositely arranged on two sides of a clamping position, the cylinders are vertically arranged, piston shafts of the cylinders are rotatably provided with levers, swing rods are rotatably arranged in the middles of the levers, and the swing rods are rotatably arranged on the working table. The other end of the swing rod is rotationally connected with the workbench, the other end of the lever is connected with a limiting column, and the limiting column is used for abutting against a workpiece. The extending length of a piston shaft of the air cylinder is adjusted according to the length of the workpiece, so that the device can stably clamp workpieces with different lengths on the workbench; due to the fact that the limiting column is a cylinder, the device is more stable when clamping a workpiece with the inner wall being a cambered surface.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of workpiece clamping, and specifically relates to a clamping device for hardware product machining. BACKGROUND

[0002] The fixture of the hardware product is a tool for fixing and supporting workpieces, is widely applied to manufacturing, assembly and machining processes, and the main function of the fixture is to ensure the stability and accuracy of the workpieces during machining or assembly, thereby improving production efficiency and product quality.

[0003] As disclosed in the patent document "CN218836866U", a "hardware product tool fixture capable of being quickly locked", the technical scheme is that two L-shaped clamping plates 7 are pressed against the top surface of the hardware product on one side under the rotating action of two rotating shafts 6, and the plug plates 16 are respectively inserted into the corresponding insertion holes 14 to realize the fixation of the workpiece.

[0004] In the patent, the distance between the two L-shaped clamping plates is difficult to adjust, and the fixture can only be applied to specific workpieces with fixed length, and cannot meet the needs of more scenes. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a clamping device for hardware product machining to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A clamping device for hardware product machining, comprising a workbench, at least two cylinders are installed on the workbench, two of the cylinders are oppositely arranged on both sides of the clamping position, the cylinders are vertically arranged, the piston shaft of the cylinder is rotatably provided with a lever, the middle part of the lever is rotatably provided with a swing rod, the other end of the swing rod is rotatably connected with the workbench, the other end of the lever is connected with a limiting column, and the limiting column is used to abut against the workpiece.

[0008] Further technical scheme, the workbench is provided with a through groove, the groove direction of the through groove is a vertical direction, the cylinder passes through the through groove, and the side surface of the cylinder is fixedly connected with the groove wall of the through groove.

[0009] Further technical scheme, the workbench is provided with a rotating groove, the rotating groove is communicated with the through groove, the groove bottom of the rotating groove is provided with a protrusion, the protrusion and the two side groove walls of the rotating groove are provided with a gap for accommodating the swing rod, the protrusion is provided with a through shaft hole, one end of the swing rod towards the workbench is provided with a rotating shaft, the rotating shaft passes through the through shaft hole, and the rotating shaft is rotatably connected with the through shaft hole.

[0010] Further technical solutions, one end of the lever connected with the limiting column is provided with a pressing plate, the pressing plate is detachably connected with the lever, two connecting holes are opened in one end of the pressing plate towards the limiting column, and the hole wall of the connecting hole is fixedly connected with the limiting column.

[0011] Further technical solutions, a plurality of limiting blocks are installed around the clamping position on the workbench.

[0012] The beneficial effects of the utility model are as follows:

[0013] The utility model discloses the long and short of the workpiece length's length adjustment cylinder piston axle's long and short make the device can be different length workpiece stably clamped on the workbench, because the limiting column is the cylinder, make the device when clamping the workpiece of arc surface inner wall is more stable.

[0014] Other features and advantages of the utility model will be described in detail in the subsequent specific embodiment part. DRAWINGS

[0015] Figure 1 The utility model discloses the perspective view.

[0016] Figure 2 The utility model discloses the A part enlarged view of Figure 1 .

[0017] Figure 3 The utility model discloses the front view.

[0018] Reference signs: 1, workbench, 2, cylinder, 3, workpiece, 4, lever, 5, swing rod, 6, limiting column, 7, through groove, 8, rotation groove, 9, protruding, 10, pressing plate, 11, connecting hole, 12, limiting block CONCRETE EMBODIMENT

[0019] The technical scheme in the utility model embodiment will be described clearly and completely in conjunction with the drawings in the utility model embodiment.

[0020] Please refer to Figures 1-3 ;

[0021] Embodiment 1:

[0022] The utility model provides a clamping device for hardware processing, including workbench 1, workbench 1 is installed at least two cylinders 2, wherein two cylinders 2 are oppositely arranged in both sides of clamping position, in the embodiment, the number of cylinder 2 is 4, and two two groups of cylinder 2 make the embodiment can clamp two workpieces 3 simultaneously, cylinder 2 is vertically arranged, the piston shaft of cylinder 2 is rotatably provided with lever 4, that is, lever 4 is hinged with the piston shaft of cylinder 2, and the other end of lever 4 is towards the direction of clamping position, the middle part of lever 4 is rotatably provided with swing bar 5, in the embodiment, the number of swing bar 5 is two, two swing bars 5 are oppositely arranged in both sides of lever 4, and the other end of two swing bars 5 is rotatably connected with workbench 1, the other end of lever 4 is connected with limiting post 6, and limiting post 6 is used to abut against workpiece 3.

[0023] Specifically, in use, the operator can place the workpiece 3 in the clamping position, then operate the piston shaft of the cylinder 2 to extend, so that the end of the lever 4 close to the cylinder 2 moves up. Since the middle part of the lever 4 is rotatably connected with the workbench 1 through the swing bar 5, the other end of the lever 4 moves down, thereby making the limiting post 6 abut against the workpiece 3. The limiting posts 6 on both sides of the workpiece 3 abut against the two inner walls of the workpiece 3 respectively, so that the workpiece 3 is stably placed on the workbench 1. When the length of the workpiece 3 to be processed is longer, the piston shaft of the cylinder 2 extends a greater distance, and the lever 4 at one end of the limiting post 6 moves a greater distance. When the length of the workpiece 3 to be processed is shorter, the piston shaft of the cylinder 2 extends a shorter distance, and the lever 4 at one end of the limiting post 6 moves a shorter distance. Thus, the device can adjust the length of the piston shaft of the cylinder 2 to extend according to the length of the workpiece 3, so that the device can stably clamp workpieces 3 of different lengths on the workbench 1. In addition, the limiting post 6 is a cylindrical body, so that the device is more stable when clamping a workpiece 3 with an arc-shaped inner wall.

[0024] In the embodiment, the workbench 1 is provided with a through slot 7, the slot opening direction of the through slot 7 is a vertical direction, the cylinder body of the cylinder 2 penetrates through the through slot 7, and the side surface of the cylinder 2 is fixedly connected with the slot wall of the through slot 7. The workbench 1 is provided with a rotating slot 8, the rotating slot 8 is communicated with the through slot 7, the slot bottom of the rotating slot 8 is provided with a protrusion 9, the protrusion 9 and the two side slot walls of the rotating slot 8 are provided with gaps for accommodating the swing bar 5, the protrusion 9 is provided with a through shaft hole, the end of the swing bar 5 towards the workbench 1 is provided with a rotating shaft, the rotating shaft penetrates through the through shaft hole, and the rotating shaft is rotatably connected with the through shaft hole.

[0025] Specifically, when the operator rotates the lever 4, assuming that the piston shaft of the cylinder 2 moves upward, when the swing bar 5 moves towards the direction close to the clamping position, the swing bar 5 will abut against the slot wall of the rotating slot 8, thereby the slot wall of the rotating slot 8 will limit the rotation of the swing bar 5, further limit the down movement distance of the middle part of the lever 4, so that the other end of the lever 4 moves downward, thereby making the limiting post 6 abut against the inner wall of the workpiece 3, and further limiting the position of the workpiece 3.

[0026] In the embodiment, the end of the lever 4 connected with the limiting column 6 is provided with a pressing plate 10, the pressing plate 10 is detachably connected with the lever 4, two connecting holes 11 are formed in the end of the pressing plate 10 facing the limiting column 6, and the hole walls of the connecting holes 11 are fixedly connected with the limiting column 6; and a plurality of limiting blocks 12 are installed on the workbench 1 around the clamping position.

[0027] Specifically, in use, the pressing plate 10 is connected with the lever 4, the limiting column 6 is fixedly connected with the connecting hole 11 of the pressing plate 10, the lever 4 drives the pressing plate 10 to move downward, and the pressing plate 10 drives the limiting column 6 to move downward; it is worth noting that the two limiting columns 6 are symmetrically arranged about the lever 4, so that the two limiting columns 6 can simultaneously abut against the workpiece 3, and the stability of the workpiece 3 is further increased.

[0028] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0029] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A clamping device for hardware processing, characterized in that: The invention comprises a workbench (1), wherein the workbench (1) is provided with at least two cylinders (2), wherein the two cylinders (2) are relatively arranged on both sides of a clamping position, the cylinders (2) are arranged vertically, the piston shaft of the cylinder (2) is rotatably provided with a lever (4), the middle part of the lever (4) is rotatably provided with a rocker (5), the other end of the rocker (5) is rotatably connected to the workbench (1), the other end of the lever (4) is connected to a limiting column (6), and the limiting column (6) is used to support the workpiece (3).

2. A clamping device for hardware processing according to claim 1, characterized in that: The workbench (1) is provided with a through slot (7), the slot opening of the through slot (7) is in a vertical direction, the cylinder (2) passes through the through slot (7), and the side surface of the cylinder (2) is fixedly connected to the slot wall of the through slot (7).

3. A clamping device for hardware processing according to claim 2, characterized in that: The workbench (1) is provided with a rotation groove (8), the rotation groove (8) is communicated with the through groove (7), the bottom of the rotation groove (8) is provided with a protrusion (9), and a gap is provided between the protrusion (9) and the groove walls on both sides of the rotation groove (8) for accommodating the rocker (5), the protrusion (9) is provided with a through-axis hole, and the rocker (5) is provided with a rotating shaft at one end facing the workbench (1), the rotating shaft passes through the through-axis hole, and the rotating shaft is rotatably connected to the through-axis hole.

4. The clamping device for hardware processing according to claim 1, characterized in that: A pressure plate (10) is provided at one end of the lever (4) connected to the limiting column (6), and the pressure plate (10) is detachably connected to the lever (4). Two connecting holes (11) are provided at one end of the pressure plate (10) facing the limiting column (6), and the hole walls of the connecting holes (11) are fixedly connected to the limiting column (6).

5. The clamping device for hardware processing according to claim 1, characterized in that: A plurality of limit blocks (12) are installed on the workbench (1) around the clamping position.

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