Lathe machining clamp with protective structure

Abstract

The utility model relates to the technical field of lathe machining, in particular to a lathe machining clamp with a protective structure, which comprises a clamp body and a clamping cavity arranged in the clamp body and used for clamping and fixing a tiebar, and a protective baffle used for shielding the clamping cavity is arranged on the side face of the clamp body. The end face of the protective baffle is provided with a center hole for a tie bar to penetrate through, and the protective baffle is further provided with an adjusting mechanism for adjusting the hole diameter of the center hole. The protective baffle is additionally arranged on the side edge of the clamp and can prevent cutting chippings from entering the clamping cavity of the clamp in the machining process, the adjusting mechanism composed of the multiple adjusting blades is arranged on the protective baffle, adjustment can be conducted according to the tiebars with different diameters, and it is ensured that the protective baffle can conduct sealing protection on the tiebars with the different diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe machining, in particular to a fixture for lathe machining with a protection structure. Background Art

[0002] A tie bar (also known as a Green column, guide post) is a common structural part in machining, usually used for support, guidance or force transmission in various mechanical equipment. During the lathe machining processes such as cutting, milling, and drilling of the tie bar, in order to ensure that the axis of the tie bar is coaxial with the lathe spindle and prevent the tie bar from moving during cutting, a fixture needs to be set on the machine tool to clamp and fix the tie bar. And usually, a bearing part is arranged in the machine tool fixture, which can support and guide the tie bar in the fixture for rotary machining.

[0003] However, it is found that when the fixture on the lathe clamps the tie bar for cutting machining, a large amount of cutting debris will be generated and enter the contact area between the positioning surface of the bearing in the fixture and the tie bar, causing wear to the tie bar. Summary of the Utility Model

[0004] In order to solve the problems in the above background art, the utility model provides a fixture for lathe machining with a protection structure.

[0005] The solution adopted by the utility model to solve its technical problems is: a fixture for lathe machining with a protection structure, including a fixture body and a clamping cavity arranged in the fixture body for clamping and fixing the tie bar. A protection baffle for shielding the clamping cavity is arranged on the side surface of the fixture body. A central hole for the tie bar to pass through is arranged on the end surface of the protection baffle. An adjusting mechanism for adjusting the aperture of the central hole is also arranged on the protection baffle.

[0006] By adopting the above technical solution, the design of the protection baffle can effectively block the cutting debris generated during the machining process from entering the clamping cavity in the fixture body, avoiding damage to the clamped tie bar caused by the debris. And the setting of the adjusting mechanism enables the aperture of the central hole to be adjusted according to tie bars of different diameters, and can be applicable to the sealing protection of tie bars of different diameters.

[0007] Further, the adjusting mechanism includes a plurality of adjusting blades distributed in a ring in the central hole and spliced with each other. A sealing hole for abutting against the tie bar and forming a seal is formed between the adjusting blades. Each adjusting blade is slidably installed on the protection baffle, and the radial sliding of each adjusting blade can adjust the aperture size of the sealing hole.

[0008] By adopting the above technical solution, the adjusting blades are arranged in a ring, arranged around the central hole. The adjusting blades are slidably installed on the protection baffle and can slide freely in the radial direction and be adjusted according to the diameter of the tie bar.

[0009] Further, an outer protective shell for clamping and fixing each adjusting blade is fixedly embedded on the protective baffle.

[0010] By adopting the above technical solution, a frame space for the displacement adjustment of the adjusting blade is formed between the outer protective shell and the protective baffle, and the sealing effect can be further improved.

[0011] Further, sliding columns are fixedly arranged on the front end face and the rear end face of each adjusting blade, and a plurality of arc-shaped sliding grooves corresponding to each sliding column are arranged on the end faces of the protective baffle and the outer protective shell close to the adjusting blade, and the sliding columns are slidably installed in the arc-shaped sliding grooves.

[0012] By adopting the above technical solution, the radial sliding of the adjusting blade can be made smoother and more accurate, and fine adjustment can be made according to the specific diameter of the toggle clamp.

[0013] Further, a return spring is arranged in the arc-shaped sliding groove, one end of the return spring is fixedly connected to the sliding column, and the other end is fixedly connected to the arc-shaped sliding groove.

[0014] By adopting the above technical solution, the return spring can enable the adjusting blade to automatically return to the initial position after the radial sliding adjustment is completed, without manual reset.

[0015] Further, guiding sliding grooves and guiding sliders matching the guiding sliding grooves are respectively arranged on the splicing surfaces on both sides of the adjusting blade, and the guiding sliders can be slidably embedded in the adjacent guiding sliding grooves.

[0016] By adopting the above technical solution, the deviation or dislocation of the adjusting blade during the sliding process can be avoided, so as to improve the overall stability of the adjusting mechanism.

[0017] To sum up, the beneficial effects of the present utility model are as follows: by arranging a protective baffle on the side of the fixture close to the cutting process, the present utility model can effectively block the cutting debris generated during the processing from entering the inside of the fixture body, avoiding the wear of the toggle clamp and the internal precision components by the debris. And an adjusting mechanism composed of adjusting blades is annularly arranged on the periphery of the central hole of the protective baffle, and radial sliding adjustment can be carried out according to different diameters of the toggle clamp to form a matching sealing hole, which not only ensures the stable fixation of the toggle clamp during the processing, but also improves the versatility of the fixture.

[0018] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the following specific preferred embodiments are given, and in conjunction with the accompanying drawings, the details are described as follows. Description of the Drawings

[0019] Figure 1 is a schematic diagram of the overall structure of this embodiment;

[0020] Figure 2 is a schematic exploded view of this embodiment;

[0021] Figure 3 is a rear view of this embodiment;

[0022] Figure 4 is a schematic diagram of the adjusting blade of this embodiment.

[0023] In the figure: 1, chuck body; 2, clamping cavity; 3, protective baffle; 31, central hole; 4, adjusting blade; 41, sealing hole; 42, sliding column; 43, guiding slider; 44, guiding chute; 5, outer protective shell; 6, arc chute; 7, return spring; 8, tie bar. Detailed implementation manners

[0024] In order to make the content of the present utility model easier to be clearly understood, the following further illustrates the present utility model according to specific embodiments in conjunction with the accompanying drawings.

[0025] It should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. used herein is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. Unless otherwise specified, the meaning of "plurality" is two or more.

[0026] Unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] As Figures 1 to 4 shown, a fixture for lathe machining with a protective structure includes a chuck body 1 and a clamping cavity 2 provided in the chuck body 1 for clamping and fixing a tie bar. Among them, a protective baffle 3 for shielding the clamping cavity 2 is provided on the side of the chuck body 1 of this embodiment. A central hole 31 for the tie bar to pass through is provided on the end face of the protective baffle 3, and an adjusting mechanism for adjusting the aperture of the central hole 31 is further provided on the protective baffle 3.

[0028] The machine tool fixture of this embodiment is provided with a protective baffle 3 on the side close to the cutting. The design of the protective baffle 3 can effectively prevent the cutting debris generated during the processing from entering the clamping cavity 2 in the clamp body 1, and prevent the debris from damaging the clamped coring column. An adjustment mechanism is also provided on the protective baffle 3, so that the diameter of the center hole 31 on the protective baffle 3 can be flexibly adjusted according to coring columns of different diameters. While ensuring the stable fixation of the coring column during the processing, the versatility of the fixture is greatly improved, so that it can adapt to coring columns of various specifications and meet different processing requirements.

[0029] like Figure 2 and Figure 3 As shown, the adjustment mechanism of this embodiment includes a plurality of adjustment blades 4 that are distributed in an annular shape in the center hole 31 and spliced ​​with each other, and a sealing hole 41 is formed between each adjustment blade 4 for abutting against the coring column and forming a seal. Each adjustment blade 4 is slidably mounted on the protective baffle 3, and each adjustment blade 4 can slide radially to adjust the aperture size of the sealing hole 41. By using the adjustment blades 4 distributed in an annular shape as the adjustment mechanism, the adjustment blades 4 distributed in an annular shape can be adjusted by radial sliding according to the actual diameter of the coring column to form a sealing hole 41 that matches the diameter of the coring column. The size of the sealing hole 41 can also be adjusted by using a tool to move the adjustment blades 4 to expand it so that the coring column can be inserted for sealing.

[0030] like Figure 2 As shown, the protective baffle 3 of this embodiment is also fixedly embedded with an outer protective shell 5 for clamping and fixing each adjusting blade 4. The fixed embedding of the outer protective shell 5 and the protective baffle 3 forms a more solid structural frame, which effectively prevents the adjusting blade 4 from being deformed or displaced under long-term use or under the action of large cutting force, and maintains the stability of the adjusting mechanism. And the sealing effect of the protective baffle 3 is further improved.

[0031] like Figure 2 and Figure 3 As shown, in this embodiment, a sliding column 42 is fixedly provided on the front and rear surfaces of each adjusting blade 4, and a plurality of arc-shaped slots 6 corresponding to each sliding column 42 are provided on the end surfaces of the protective baffle 3 and the outer protective shell 5 close to the adjusting blade 4, and the sliding column 42 is slidably installed in the arc-shaped slots 6. By fixing the sliding column 42 on the front and rear end surfaces of the adjusting blade 4, and opening the arc-shaped slots 6 at the corresponding positions of the protective baffle 3 and the outer protective shell 5, the sliding column 42 can accurately slide radially along the arc-shaped slots 6, so that the radial sliding of the adjusting blade 4 becomes smoother and more accurate, and can be finely adjusted according to the specific diameter of the coring column, so as to ensure the sealing between the adjusting blade 4 and the coring column, and effectively prevent the intrusion of cutting debris.

[0032] like Figure 2 and Figure 3As shown, a return spring 7 is provided in the arc-shaped chute 6 of this embodiment. One end of the return spring 7 is fixedly connected to a sliding column 42, and the other end is fixedly connected to the arc-shaped chute 6. By providing the return spring 7 inside the arc-shaped chute 6, with one end fixedly connected to the sliding column 42 and the other end fixedly connected to the arc-shaped chute 6 itself, it enables the adjusting blade 4 to automatically return to the initial position after completing the radial sliding adjustment, without the need for manual reset.

[0033] As Figure 4 shown, on both sides of the splicing surface of the adjusting blade 4 of this embodiment, a guiding chute 44 and a guiding slider 43 matching the guiding chute 44 are respectively provided, and the guiding slider 43 is slidably embedded in the adjacent guiding chute 44. By respectively providing the guiding chute 44 and the guiding slider 43 matching it on both sides of the splicing surface of the adjusting blade 4, it can ensure the stability of the adjusting blade 4 during radial sliding and the tightness of the splicing surface, avoiding the deviation or dislocation of the adjusting blade 4 during the sliding process, so as to improve the overall stability of the adjusting mechanism.

[0034] In summary, the beneficial effects of this embodiment are as follows: By providing a protective baffle 3 on the side of the fixture close to the cutting process, it can effectively prevent the cutting debris generated during the processing from entering the fixture body 1, avoiding the wear of the tie rods and internal precision components by the debris. And around the central hole 31 of the protective baffle 3, an adjusting mechanism composed of the adjusting blade 4 is provided in a circumferential manner, which can perform radial sliding adjustment according to the different diameters of the tie rods to form a matching sealing hole 41, not only ensuring the stable fixation of the tie rods during the processing, but also improving the versatility of the fixture. The setting of the outer protective shell 5 not only enhances the durability of the adjusting mechanism, but also further improves the sealing effect of the protective baffle 3, preventing debris from entering through the arc-shaped chute 6. The setting of the return spring 7 ensures that the adjusting blade 4 can automatically reset after adjustment.

[0035] The above-described embodiments are only the preferred embodiments of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and modifications made by those skilled in the art based on the present invention shall fall within the protection scope of the present invention.

Claims

1. A fixture for lathe machining with a protective structure, comprising a fixture body and a clamping cavity provided in the fixture body for clamping and fixing a tie rod, characterized in that, A protective baffle for shielding the clamping cavity is arranged on the side surface of the fixture body. A central hole for the ejector pin to pass through is arranged on the end surface of the protective baffle, and an adjusting mechanism for adjusting the aperture of the central hole is further arranged on the protective baffle.

2. The fixture for lathe machining with a protection structure according to claim 1, wherein The adjusting mechanism includes a plurality of adjusting blades which are annularly distributed in the central hole and are spliced with each other. A sealing hole for abutting against the ejector pin and forming a seal is formed between the adjusting blades. Each adjusting blade is slidably mounted on the protective baffle, and the radial sliding of each adjusting blade can adjust the aperture size of the sealing hole.

3. The fixture for lathe machining with a protection structure according to claim 2, characterized in that, An outer protective shell for clamping and fixing each adjusting blade is fixedly embedded on the protective baffle.

4. A fixture for lathe machining with a protective structure according to claim 3, characterized in that, Sliding columns are fixedly arranged on the front end surface and the rear end surface of each adjusting blade. A plurality of arc-shaped chutes corresponding to the sliding columns are arranged on the end surfaces of the protective baffle and the outer protective shell close to the adjusting blade side. The sliding columns are slidably mounted in the arc-shaped chutes.

5. A fixture for lathe machining with a protection structure according to claim 4, characterized in that, A return spring is arranged in the arc-shaped chute. One end of the return spring is fixedly connected to the sliding column, and the other end is fixedly connected to the arc-shaped chute.

6. A fixture for lathe machining with a protective structure according to claim 2, characterized in that, Guide chutes and guide sliders matching the guide chutes are respectively arranged on the splicing surfaces on both sides of the adjusting blade. The guide sliders are slidably embedded in the adjacent guide chutes.

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