A circular shear type outer tool holder clamping device

Abstract

The utility model relates to mechanical processing auxiliary device technical field, especially in a kind of round shear formula outer cutter holder clamping device, including base, clamping mechanism and positioning mechanism, base top center position is equipped with mounting hole, clamping mechanism is fixedly connected in the top of base, and clamping mechanism is used for fixed cutter holder;Positioning mechanism is fixedly connected, and positioning mechanism is used for positioning cutter holder, positioning is carried out to cutter holder by positioning mechanism, so that accurate positioning is carried out to cutter holder, clamping is carried out to cutter holder by clamping mechanism, and the operation of clamping is simplified, so it becomes more simple.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary mechanical processing devices, and in particular to a circular shear-type external tool holder clamping device. Background Technology

[0002] In machining processes, circular shear-type external tool holders are commonly used for various cutting and shearing operations. The stability and reliability of their clamping device directly affect machining quality and efficiency. Traditional clamping methods may not provide precise positioning of the tool holder, leading to wobbling or displacement during operation. Furthermore, the operation of the clamping device is cumbersome, making installation and removal of the tool holder inconvenient. Therefore, there is an urgent need for a novel, feasible, and intelligent circular shear-type external tool holder clamping device to solve these problems.

[0003] The existing technical solutions have the following drawbacks: the positioning of the clamping device on the tool holder is not precise enough, and the operation of the clamping device is relatively cumbersome. Utility Model Content

[0004] The purpose of this invention is to provide a circular scissor-type external blade holder clamping device to solve the problems existing in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A circular scissor-type external blade holder clamping device includes:

[0007] A base, wherein a mounting hole is provided at the center of the top of the base;

[0008] A clamping mechanism is fixedly connected to the top of the base and is used to fix the tool holder;

[0009] A positioning mechanism is fixedly connected to the mounting hole and is used to position the tool holder.

[0010] By adopting the above technical solution, the tool holder is positioned by the positioning mechanism, which enables precise positioning of the tool holder. The tool holder is clamped by the clamping mechanism, which simplifies the clamping operation and makes it simpler.

[0011] In a further embodiment, the clamping mechanism includes:

[0012] An annular pressure plate is slidably connected to the top of the base. The inner diameter of the annular pressure plate is the same as the diameter of the mounting hole, and the outer diameter of the annular pressure plate is larger than the diameter of the mounting hole. Connecting posts corresponding to the connecting holes are evenly distributed at the bottom end of the annular pressure plate.

[0013] An elastic element is sleeved on a connecting post and located at the top of the base;

[0014] The first gear, and multiple first gears are provided, each of which is rotatably connected to the outer side of the base, and the first gear is located on the top of the annular pressure plate;

[0015] The second gear has the same number of gears as the first gear. The second gear meshes with the first gear. The diameter of the second gear is smaller than that of the first gear. The second gear is rotatably connected to the outer side of the base.

[0016] The third gear has the same number as the first gear. The third gear meshes with the second gear and is directly identical to the first gear. The axes of the third gear, the first gear, and the second gear are located on the same plane. The third gear is rotatably connected to the outer side of the base.

[0017] The first rack has the same number of racks as the first gear. The first gear is placed vertically. The first rack is fixedly connected to the annular pressure plate. The first gear meshes with the first gear and the second gear.

[0018] The second rack has the same number of racks as the first gear. The second gear is placed horizontally and meshes with the first gear. The bottom end of the second rack is provided with the first rack.

[0019] The second rack has a clamping block fixedly connected to one end.

[0020] In a further embodiment, the positioning mechanism includes:

[0021] A positioning pin is fixedly connected in the mounting hole and is used to fix the tool holder.

[0022] And a positioning groove, which is disposed on the lower end face of the tool holder and is adapted to the positioning pin.

[0023] In a further embodiment, the inner side of the clamping block is provided with an arc-shaped clamping surface that matches the outer peripheral surface of the tool holder.

[0024] In a further embodiment, the elastic element is a helical spring, the upper end of which abuts against the lower end face of the annular pressure plate, and the lower end of which abuts against the upper end face of the base.

[0025] In a further embodiment, the bottom end of the connecting post is provided with a thread for screwing a nut.

[0026] In summary, this utility model has the following beneficial effects:

[0027] 1. The combination of positioning pins and positioning slots enables precise positioning of the circular shear external tool holder, preventing the tool holder from shaking or shifting during operation and improving the machining quality.

[0028] 2. The ring-shaped pressure plate, which is slidably connected to the top of the base, allows for clamping and disassembling of the tool holder by pressing or lifting the ring-shaped pressure plate. This simple and quick operation improves work efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the clamping mechanism structure of this utility model;

[0031] Figure 3 This is a schematic diagram of the positioning mechanism of this utility model.

[0032] In the diagram, 1 is the base; 2 is the clamping mechanism; 23 is the first gear; 24 is the second gear; 25 is the third gear; 26 is the first rack; 27 is the second rack; 3 is the positioning mechanism; 31 is the positioning pin; 4 is the clamping block; 5 is the connecting column; and 6 is the nut. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0035] Example 1:

[0036] like Figures 1-3 As shown, a circular scissor-type external blade holder clamping device includes a base 1, a clamping mechanism 2, and a positioning mechanism 3. An installation hole is opened at the center of the top of the base 1. The clamping mechanism 2 is fixedly connected to the top of the base 1 and is used to fix the blade holder. The positioning mechanism 3 is fixedly connected to the installation hole and is used to position the blade holder.

[0037] The clamping mechanism 2 includes an annular pressure plate, an elastic element, a first gear 23, a second gear 24, a third gear 25, a first rack 26, a second gear 27, and a clamping block 4. The annular pressure plate is slidably connected to the top of the base 1. The inner diameter of the annular pressure plate is the same as the diameter of the mounting hole, and the outer diameter of the annular pressure plate is the same as the outer diameter of the base 1. Connecting posts 5 corresponding to the connecting holes are evenly distributed at the bottom end of the annular pressure plate. Four connecting posts 5 are provided, and the elastic element is sleeved on the connecting posts 5. The elastic element is located at the top of the base. Multiple first gears 23, second gears 24, third gears 25, first racks 26, second racks 27, and clamping blocks 4 are provided. Two first gears 23, second gears 24, third gears 25, first racks 26, second racks 27, and clamping blocks are provided. The first gear 23 is rotatably connected to the outer side of the base 1 through a support frame. The first gear 23 is located at the top of the annular pressure plate. The second gear 24 meshes with the first gear 23. The diameter of the second gear 24 is smaller than that of the first gear 23. Gear 23 and second gear 24 are rotatably connected to the outer side of base 1 via support frame; the number of third gears 25 is the same as the number of first gears 23, third gears 25 mesh with second gears 24, and third gears 25 are directly identical to first gears 23. The axes of third gears 25, first gears 23 and second gears 24 are located on the same plane, and third gears 25 are rotatably connected to the outer side of base 1 via support frame; first rack 26 is placed vertically and fixedly connected to the outer side of annular pressure plate, and first rack 26 meshes with first gears 23 and third gears 25; second gear 24 is placed horizontally and meshes with first gear 23, and the movement of second rack 27 in the left and right directions is restricted by bracket, first rack 26 is located at the bottom of second rack 27; one end of second rack 27 is fixedly connected to clamping block 4, the inner side of clamping block 4 is provided with an arc-shaped clamping surface adapted to the outer circumference of the tool holder, and the bottom end of connecting column 5 is provided with thread, the thread is used to screw nut 6.

[0038] The positioning mechanism 3 includes a positioning pin 31 and a positioning groove. The positioning pin 31 is fixedly connected in the mounting hole and is used to fix the tool holder. The positioning groove is set on the lower end face of the tool holder and is adapted to the positioning pin 31. The elastic element is a helical spring. The upper end of the helical spring abuts against the lower end face of the annular pressure plate, and the lower end of the helical spring abuts against the upper end face of the base 1.

[0039] Specific implementation process: The positioning pin 31 is fixedly connected to the mounting hole of the base 1. The helical spring is sleeved on the top of the connecting post 5. The connecting post 5 passes through the connecting hole of the base 1. The bottom end of the connecting post 5 is screwed with the nut 6, which allows the annular pressure plate to slide up and down on the base 1. The positioning groove at the bottom of the tool holder is engaged with the positioning pin 31 to position the tool holder. The arc-shaped clamping surface on the inner side of the clamping block 4 contacts the outer side of the tool holder. The annular pressure plate is pressed down, the first rack 26 moves downward, driving the third gear 25 to rotate. The second gear 24 meshes with the first gear 25, driving the second gear 25 to rotate. The first gear 23 meshes with the second rack 27, which rotates and moves towards the center of the tool holder. The clamping block 4 clamps the tool holder and fixes it. The nut 6 at the bottom of the connecting column 5 is tightened. When it is necessary to release the tool holder, the nut 6 is loosened, the helical spring pushes the annular pressure plate upward, and the annular pressure plate moves upward. The first rack 26 moves upward, driving the third gear 25, the second gear 24 and the first gear 23 to rotate. This drives the second rack 27 to move away from the center of the tool holder, and the clamping block 4 separates from the tool holder, thus releasing the tool holder from its fixation.

[0040] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0041] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A circular shear outer tool holder clamping device, characterized by, include: A mounting hole is provided at the center of the top of the base (1); Clamping mechanism (2), which is fixedly connected to the top of the base (1), is used to fix the tool holder; The positioning mechanism (3) is fixedly connected to the mounting hole and is used to position the tool holder; the clamping mechanism (2) includes: An annular pressure plate is slidably connected to the top of the base (1). The inner diameter of the annular pressure plate is the same as the diameter of the mounting hole, and the outer diameter of the annular pressure plate is larger than the diameter of the mounting hole. Connecting posts (5) corresponding to the connecting holes are evenly distributed at the bottom of the annular pressure plate. An elastic element is sleeved on a connecting post and located at the top of the base; First gear (23), multiple first gears (23) are provided, and each first gear (23) is rotatably connected to the outside of the base (1). The first gear (23) is located on the top of the annular pressure plate. The second gear (24) has the same number of first gears (23) as the second gear (24). The second gear (24) meshes with the first gear (23). The diameter of the second gear (24) is smaller than that of the first gear (23). The second gear (24) is rotatably connected to the outer side of the base (1). The third gear (25) has the same number as the first gear (23). The third gear (25) meshes with the second gear (24). The third gear (25) is directly the same as the first gear (23). The axes of the third gear (25), the first gear (23), and the second gear (24) are located on the same plane. The third gear (25) is rotatably connected to the outside of the base (1). The first rack (26) has the same number as the first gear (23). The first gear (23) is placed vertically. The first rack (26) is fixedly connected to the annular pressure plate. The first gear (23) meshes with the first gear (23) and the second gear (24). The second rack (27) has the same number as the first gear (23). The second gear (24) is placed horizontally and meshes with the first gear (23). The bottom end of the second rack (27) is provided with the first rack (26). The positioning mechanism (3) includes: a clamping block (4), one end of the second rack (27) is fixedly connected to the clamping block (4); Positioning pin (31), which is fixedly connected in the mounting hole, is used to fix the tool holder; The positioning groove is located on the lower end face of the tool holder and is adapted to the positioning pin (31); the inner side of the clamping block (4) is provided with an arc-shaped clamping surface adapted to the outer circumferential surface of the tool holder; the elastic element is a helical spring, the upper end of the helical spring abuts against the lower end face of the annular pressure plate, and the lower end of the helical spring abuts against the upper end face of the base (1); the bottom end of the connecting column (5) is provided with a thread, which is used to screw a nut (6).

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