Hinge type lever clamping device based on CNC machining

Abstract

The hinge type lever clamping device based on CNC machining comprises a mounting frame, a fixing disc, a linear telescopic element, a lever structure and a pressing mechanism, the fixing disc is horizontally mounted on the mounting frame, and an objective table is arranged at the top of the fixing disc; the linear telescopic element is mounted at the bottom of the fixed disc and is provided with a telescopic shaft which vertically extends downwards; the lever structure comprises a fixed seat, a connecting rod and a pull rod, the fixed seat is vertically and fixedly connected to the other side of the bottom of the fixed disc, the connecting rod is hinged between the output shaft and the fixed seat, and the pull rod directly faces the center of the objective table and is vertically connected with the connecting rod; the pressing mechanism comprises a balance block and two pressing claws, the balance block is horizontally arranged below the fixed disc and is vertically connected with the pull rod through the middle position, the two pressing claws are vertically connected with the two ends of the balance block respectively and vertically penetrate through the fixed disc in a sliding fit mode, and pressing bosses are symmetrically arranged at the tops of the pressing claws; therefore, a product can be compressed and fixed through a linear telescopic element based on the lever principle.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC machining tooling, in particular to a hinged lever clamping device based on CNC machining. Background Art

[0002] In the field of CNC machine processing, when the fixture space is not enough to arrange multiple cylinders and the CNC processing removal volume of the product is large, the product is prone to not being pressed tightly during the CNC machine processing, resulting in unstable processing quality. If a single-hole one-to-two or one-to-four cylinder is used for pressing, multiple cylinders need to be arranged at the same time, and the processing cost will increase.

[0003] Therefore, there is a need for a device that can keep costs low and can press products to ensure processing quality. Utility Model Content

[0004] One advantage of the utility model is that it provides a hinged lever clamping device based on CNC processing, in which a single linear telescopic element utilizes the cooperation of a lever structure and a balance block to simultaneously drive two pressing claws to clamp a product, which can effectively reduce equipment costs on the basis of clamping the product to ensure the CNC processing quality, is easy to operate, and has high processing efficiency.

[0005] One advantage of the utility model is that it provides a hinged lever clamping device based on CNC processing, in which a fixed plate can be effectively supported and fixed by a tripod, thereby ensuring the processing quality of the CNC machine. In addition, the lightening hole can ensure the support strength of the fixed plate, reduce the weight of the tripod, and facilitate observation and maintenance of the internal structure of the clamping device.

[0006] One advantage of the present invention is that it provides a hinged lever clamping device based on CNC processing, in which the pull rod is closer to the fixed seat in the extension direction of the connecting rod, thereby effectively improving the driving force of the linear telescopic element on the pull rod based on the lever principle, and further improving the stability of the product on the fixed plate.

[0007] In order to achieve at least one of the above advantages of the utility model, the utility model provides a hinged lever clamping device based on CNC processing, comprising:

[0008] Mounting frame, used for mounting and fixing on the CNC machine table;

[0009] A fixed plate, horizontally mounted on the mounting frame, with a loading platform disposed on the top of the fixed plate;

[0010] A linear telescopic element is installed at the bottom of the fixed plate and close to one side thereof, and the linear telescopic element has a telescopic shaft extending vertically downward;

[0011] A lever structure, comprising a fixed seat, a connecting rod and a pull rod, wherein the fixed seat is vertically fixedly connected to the other side of the bottom of the fixed plate, the connecting rod is hingedly connected between the bottom end of the output shaft and the bottom end of the fixed seat, the pull rod faces the center of the stage and is connected to the connecting rod through the bottom end, and the fixed plate is provided with a guide hole for the pull rod to move vertically; and

[0012] The clamping mechanism includes a balancing block and two pressing claws. The balancing block is horizontally arranged below the fixed plate and is vertically connected to the pull rod through the middle position. The two pressing claws are vertically connected to the two ends of the balancing block through the bottom respectively. The pressing claws vertically penetrate the fixed plate in a sliding fit manner, and are provided with clamping bosses extending toward each other on the top. The two clamping bosses are respectively facing the worktable on both sides.

[0013] According to one embodiment of the utility model, the mounting frame includes a mounting side plate and two tripods vertically symmetrically connected to the same side of the mounting side plate, wherein the mounting side plate remains vertically extended and is used to connect to the CNC machine, wherein the tripod remains vertically extended and is connected to the bottom of the fixed plate through a top support.

[0014] According to an embodiment of the utility model, a lightening hole is provided in the tripod, and the shape of the lightening hole matches the outer shape of the tripod.

[0015] According to an embodiment of the present invention, the mounting side plate is implemented as a flange.

[0016] According to an embodiment of the utility model, a positioning pin or a positioning protrusion for positioning the product is provided on the top of the loading platform.

[0017] According to an embodiment of the utility model, a guide block is arranged in the fixed plate, and the pressure claw passes through the guide block and slides with the guide block in the vertical direction.

[0018] According to an embodiment of the present invention, in the extending direction of the connecting rod, the pull rod is close to the fixing seat.

[0019] According to an embodiment of the present invention, the linear telescopic element is implemented as a cylinder module.

[0020] These and other purposes, features and advantages of the present invention are fully reflected in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a hinged lever clamping device based on CNC processing according to a preferred embodiment of the present application is shown.

[0022] Figure 2 A schematic structural diagram of a hinged lever clamping device based on CNC processing according to a preferred embodiment of the present application is shown.

[0023] Figure 3 A partial structural schematic diagram of a hinged lever clamping device based on CNC processing according to a preferred embodiment of the present application is shown.

[0024] Figure 4 A schematic cross-sectional structure diagram of a hinged lever clamping device based on CNC processing according to a preferred embodiment of the present application is shown. DETAILED DESCRIPTION

[0025] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0026] Those skilled in the art should understand that, in the disclosure of the specification, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0027] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0028] refer to Figures 1 to 4According to a preferred embodiment of the present invention, a hinged lever clamping device based on CNC processing will be described in detail below, wherein the hinged lever clamping device based on CNC processing includes a mounting frame 10, a fixed plate 20, a linear telescopic element 30, a lever structure and a clamping mechanism, wherein the mounting frame 10 is used to be installed and fixed on a CNC machine, wherein the fixed plate 20 is horizontally installed on the mounting frame 10, and a loading table 21 is arranged on the top of the fixed plate 20 for placing a product 40. In addition, in order to facilitate the rapid and accurate placement of the product 40, The top of the stage 21 is provided with a positioning pin or a positioning boss for positioning the product 40, wherein the positioning pin or the positioning boss can cooperate with the hole 401 or the groove on the product 40 to form a positioning, or can be distributed on the outside to position the product 40 on the peripheral side of the product 40, so it can be determined according to the situation; the linear telescopic element 30 is installed at the bottom of the fixed plate 20 and close to one side, and the linear telescopic element 30 has a telescopic shaft 31 extending vertically downward, wherein the linear telescopic element 30 is implemented as a cylinder module.

[0029] The lever structure includes a fixed seat 51, a connecting rod 52 and a pull rod 53, wherein the fixed seat 51 is vertically fixedly connected to the other side of the bottom of the fixed plate 20, and the connecting rod 52 is hingedly connected between the bottom end of the output shaft 31 and the bottom end of the fixed seat 51, and the pull rod 53 is opposite to the center of the stage 21 and is connected to the connecting rod 52 through the bottom end. At the same time, the fixed plate 20 is provided with a guide hole 201 for the vertical movement of the pull rod 53. In this way, when the telescopic shaft 31 is extended and retracted up and down, the pull rod 53 can be driven to move up and down in a directional manner with the fixed seat 51 as the hinge fulcrum.

[0030] The clamping mechanism includes a balancing block 61 and two pressing claws 62, wherein the balancing block 61 is horizontally arranged below the fixed disk 20 and facing the loading platform 21, and the balancing block 61 is vertically connected to the pull rod 53 through the middle position, so that when the pull rod 53 is driven by the linear telescopic element 30 and the connecting rod 52 to move up and down, it can drive the balancing block 61 to move in the vertical direction and always maintain a horizontally extended state, wherein the two pressing claws 62 are respectively vertically connected to the two ends of the balancing block 61 through the bottom, and the pressing claws 62 vertically penetrate the fixed disk 20 in a sliding fit, and are provided with clamping bosses 63 extending toward each other on the top, and the two clamping bosses 63 are respectively facing the loading platform 21 on both sides, for clamping and fixing the product 40 with the loading platform 21 as the support surface, so that the fixed disk 20 can play a role in guiding the pressing claws 62, which is also the key to ensuring that the balancing block 61 can be maintained in a horizontally extended state.

[0031] Simply put, in the clamping device provided in the present application, based on the lever principle, the telescopic shaft 31 on the cylinder module drives the connecting rod 52 to move up and down with the bottom end of the fixed seat 51 as the rotation center. On the basis of the vertical sliding fit between the pressure claw 62 and the fixed plate 20, the pull rod 53 and the balance block 61 will be restricted to move only in the vertical direction, and the balance block 61 will be restricted to always remain in a horizontally extended state. In this way, the pressure claws 62 at both ends of the balance block 61 will be subjected to synchronous and equal driving forces applied in the vertical direction, and then when the pull rod 53 descends, the product 40 will be pressed on the stage 21 through the clamping boss 63 respectively, thereby achieving the purpose of clamping the product 40 on the CNC machine through a single linear telescopic element 30, which can effectively reduce the equipment cost, and at the same time, the clamping effect is good, which can ensure the processing quality of the CNC machine.

[0032] In one embodiment, the mounting frame 10 includes a mounting side panel 11 and two tripods 12 vertically symmetrically connected to the same side of the mounting side panel 11, wherein the mounting side panel 11 maintains a vertical extension for connecting to the CNC machine, and the mounting side panel 11 is implemented as a flange to facilitate quick installation and fixation of the clamping device to the CNC machine, wherein the tripod 12 maintains a vertical extension and is connected to the bottom of the fixed plate 20 through a top support to ensure the stability of the fixed plate 20, thereby ensuring the stability and processing quality of the product during the CNC machine processing, and at the same time making the overall structure of the clamping device more compact and reducing the occupied space.

[0033] Further preferably, a lightening hole 101 is provided in the tripod 12, and the shape of the lightening hole 101 matches the outer shape of the tripod 12. In this way, not only can the weight of the tripod 12 be reduced while ensuring the supporting strength of the fixing plate 20 to achieve the purpose of lightweight, but it can also facilitate the observation, installation and maintenance of the internal structure of the clamping device.

[0034] Further preferably, a guide block 22 is provided in the fixed disk 20, and the pressure claw 62 passes through the guide block 22 and slides with the guide block 22 in the vertical direction. In this way, a channel matching with the pressure claw 62 can be first processed in the guide block 22, and then the guide block 22 can be installed in the fixed disk 20. This not only facilitates the processing of the guide channel, but also ensures the dimensional accuracy of the guide channel. At the same time, different products 40 can be matched by replacing the guide block 22 with guide channels of different shapes and / or sizes, and the versatility is strong.

[0035] In one embodiment, in the extension direction of the connecting rod 52, the pull rod 53 is close to the fixing seat 51. According to the lever principle, under the same driving force and driving position, the closer the pull rod 53 is to the fixing seat 51, the greater the force that the linear telescopic element 30 can apply to the pull rod 53, so that the pressing force on the product 40 can be increased under the same conditions through the eccentric structural design, making the product 40 more stable, thereby ensuring the processing quality of the product 40 by the CNC machine. Obviously, the closer to the fixing seat 51, the smaller the up and down movement stroke of the pull rod 53 will be. Therefore, generally, a suitable balance point is found between the center position of the connecting rod 52 and the fixing seat 51 to connect the pull rod 53.

[0036] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. CNC-processed hinged lever clamping device, characterized in that: include: Mounting frame, used for mounting and fixing on the CNC machine table; A fixed plate, horizontally mounted on the mounting frame, with a loading platform disposed on the top of the fixed plate; A linear telescopic element is installed at the bottom of the fixed plate and close to one side thereof, and the linear telescopic element has a telescopic shaft extending vertically downward; A lever structure, comprising a fixed seat, a connecting rod and a pull rod, wherein the fixed seat is vertically fixedly connected to the other side of the bottom of the fixed plate, the connecting rod is hingedly connected between the bottom end of the output shaft and the bottom end of the fixed seat, the pull rod faces the center of the stage and is connected to the connecting rod through the bottom end, and the fixed plate is provided with a guide hole for the pull rod to move vertically; and The clamping mechanism includes a balancing block and two pressing claws. The balancing block is horizontally arranged below the fixed plate and is vertically connected to the pull rod through the middle position. The two pressing claws are vertically connected to the two ends of the balancing block through the bottom respectively. The pressing claws vertically penetrate the fixed plate in a sliding fit manner, and are provided with clamping bosses extending toward each other on the top. The two clamping bosses are respectively facing the worktable on both sides.

2. The hinged lever clamping device based on CNC processing as claimed in claim 1, characterized in that: The mounting frame includes a mounting side plate and two tripods vertically symmetrically connected to the same side of the mounting side plate, wherein the mounting side plate remains vertically extended for connecting to the CNC machine, wherein the tripod remains vertically extended and is connected to the bottom of the fixed plate through a top support.

3. The hinged lever clamping device based on CNC processing as claimed in claim 2, characterized in that: A lightening hole is arranged inside the tripod, and the shape of the lightening hole matches the outer shape of the tripod.

4. The hinged lever clamping device based on CNC machining as claimed in claim 2, characterized in that: The mounting side plate is implemented as a flange.

5. The hinged lever clamping device based on CNC processing as claimed in claim 1, characterized in that: The top of the loading platform is provided with a positioning pin or a positioning protrusion for positioning the product.

6. The hinged lever clamping device based on CNC processing as claimed in claim 1, characterized in that: A guide block is arranged in the fixing plate, and the pressing claw passes through the guide block and is slidably matched with the guide block in a vertical direction.

7. The hinged lever clamping device based on CNC machining as claimed in claim 1, characterized in that: In the extending direction of the connecting rod, the pulling rod is close to the fixing seat.

8. The hinged lever clamping device based on CNC machining as claimed in claim 1, characterized in that: The linear telescopic element is implemented as a cylinder module.

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