Positioning and clamping device for tool bit

Abstract

The utility model discloses a positioning and clamping device for a tool bit, relates to the technical field of machine tool clamps, and aims to solve the problem that after the positioning and clamping device for the tool bit used by an existing machine tool is used for a long time, firmness and compactness between elements are loosened due to mechanical shaking. The second inner cavity is formed in the bottom plate, two second reserved cavities are formed in one side of the outer wall of the bottom plate, two second roll shafts are arranged in the second inner cavity, threaded walls are arranged on the inner walls of the two second reserved cavities, and the threaded walls are arranged on the inner walls of the threaded walls. The threaded wall and the inner wall of the second reserved cavity are integrally formed, first center rotating rod pieces are arranged at one ends of the two second roll shafts, and second center rotating rod pieces are arranged at the other ends of the two second roll shafts.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool fixtures, in particular to a positioning and clamping device for a cutter head. Background Art

[0002] A machine tool fixture is a device used to clamp workpieces and guide tools on machine tools. It refers to a fixture specially designed for a certain process of a certain workpiece. It is characterized by compact structure, quick, convenient and labor-saving operation, and can ensure high processing accuracy and production efficiency, but the design and manufacturing cycle is long and the manufacturing cost is also high. When the product is changed, the fixture will be scrapped because it can no longer be used. It is only suitable for production with fixed products and large batches. It contacts the positioning reference of the workpiece and is used to determine the correct position of the workpiece in the fixture, thereby ensuring the relative correct position of the workpiece relative to the tool and the machine tool processing movement during processing.

[0003] For example, the announcement number is CN108356703B, and the name of the Chinese authorized patent is (diamond cutter head clamping device), which includes: the diamond cutter head clamping device also includes a locking mechanism that can lock the cylinder body of the forward push cylinder on the cutter head clamping bottom plate. When the diamond cutter head clamping device clamps the diamond cutter head, the position of the forward push cylinder is adjusted according to the height of the diamond cutter head, so that the distance between the rear backrest and the front backrest is adapted to the height of the diamond cutter head, so that the rear backrest of the push cylinder can play a corrective role in the process of pushing the diamond cutter head, significantly reducing the tilt angle.

[0004] However, after the tool head positioning and clamping device used in the existing machine tools has been used for a long time, the firmness and compactness between the components may become loose due to mechanical vibration; therefore, it does not meet the existing needs. In this regard, we propose a tool head positioning and clamping device. Utility Model Content

[0005] The purpose of the utility model is to provide a positioning and clamping device for a tool head, so as to solve the problem that the positioning and clamping device for a tool head used in an existing machine tool proposed in the above background technology may cause the tightness between components to become loose due to mechanical vibration after a long period of use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning and clamping device for a cutter head, comprising: a positioning and connecting column, a connecting rod is arranged below the positioning and connecting column, and a bottom plate is arranged on the lower end surface of the connecting rod;

[0007] Also includes:

[0008] A second inner cavity is installed inside the bottom plate, a second reserved cavity is arranged on one side of the outer wall of the bottom plate, and two second reserved cavities are arranged, a second roller is arranged inside the second inner cavity, and two second rollers are arranged, the inner walls of the two second reserved cavities are both provided with threaded walls, and the threaded walls are formed integrally with the inner walls of the second reserved cavity, a first central rotating rod is arranged at one end of the two second rollers, and a second central rotating rod is arranged at the other end of the two second rollers, the first central rotating rod is installed inside the second reserved cavity, a rotating block is arranged on the outer side of the inside of the two second reserved cavities, and two rotating blocks are arranged, and the two rotating blocks are both connected to the bottom plate threadedly through the threaded wall;

[0009] A telescopic rod is installed at one end of the two rotating blocks, one end of the telescopic rod passes through and extends to the interior of the rotating block, a placement cavity is provided inside the two rotating blocks, a telescopic spring is provided inside the placement cavity, two ends of the telescopic spring are respectively welded to the inner wall of the rotating block and one end of the telescopic rod, and a high-strength thick spring coil is provided on the outer side of one end of the rotating block.

[0010] Preferably, a buffer pad 300 - 1 is provided between the second central rotating rod 30401 and the bottom plate 300 .

[0011] Preferably, first reserved bolt holes are arranged inside both sides of the outer wall of the connecting rod, and two first reserved bolt holes are arranged, and second reserved bolt holes are arranged on the lower sides of the two first reserved bolt holes, and two second reserved bolt holes are arranged, and the two second reserved bolt holes and the first reserved bolt holes are formed integrally with the connecting rod.

[0012] Preferably, the first inner cavity of the positioning connecting column and the upper and lower sides of the front end surface of the positioning connecting column are both provided with first reserved cavities, and there are four first reserved cavities, and installation shafts are provided inside the four first reserved cavities, and the first roller shafts are provided inside the first inner cavity, and there are two first roller shafts, and both ends of the two first roller shafts are provided with central rotating rods.

[0013] Preferably, mounting hole grooves are provided on both sides of the upper end surface of the positioning and connecting column, and there are two mounting hole grooves, and the two mounting hole grooves are formed integrally with the positioning and connecting column.

[0014] Preferably, bolts are provided inside the two mounting hole grooves.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model provides a rotating block inside the second reserved cavity of the bottom plate, and a telescopic rod, a high-strength thick spring coil, a placement cavity and a telescopic spring are designed inside the rotating block. When it is found that the second roller shaft inside the positioning and clamping device is loose, the rotating block is rotated again to move the telescopic rod at one end of the rotating block inward, and the pressure of the high-strength thick spring coil and the telescopic spring is shortened, providing a clamping force for the first central rotating rod to strengthen the stability of the second roller shaft, thereby avoiding the problem that the positioning and clamping device of the tool head used in the existing machine tool will become loose due to mechanical jitter after the use time increases. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the top view of the positioning and connecting column structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the bottom plate of the utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the bottom plate of the utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the bottom plate of the utility model;

[0022] In the figure: 100, positioning and connecting column; 101, first inner cavity; 102, first reserved cavity; 103, first roller; 104, mounting axis; 105, mounting hole groove; 106, bolt; 107, center rotating rod; 200, connecting rod; 201, first reserved bolt hole; 202, second reserved bolt hole; 300, bottom plate; 300-1, buffer pad; 300-2, threaded wall; 301, second inner cavity; 302, rotating block; 30201, telescopic rod; 30202, high-strength thick spring coil; 30203, placement cavity; 30204, telescopic spring; 303, second roller; 304, first center rotating rod; 30401, second center rotating rod; 307, second reserved cavity. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Example 1

[0025] See also Figure 1-4The utility model provides an embodiment: a positioning and clamping device for a tool head, comprising: a positioning and connecting column 100, a connecting rod 200 is arranged below the positioning and connecting column 100, and a bottom plate 300 is arranged on the lower end surface of the connecting rod 200;

[0026] Also includes:

[0027] A second inner cavity 301 is installed inside the bottom plate 300, a second reserved cavity 307 is provided on one side of the outer wall of the bottom plate 300, and two second reserved cavities 307 are provided, a second roller 303 is provided inside the second inner cavity 301, and two second rollers 303 are provided, the inner walls of the two second reserved cavities 307 are provided with threaded walls 300-2, and the threaded walls 300-2 are formed integrally with the inner walls of the second reserved cavities 307, one end of the two second rollers 303 is provided with a first central rotating rod 304, the other end of the two second rollers 303 is provided with a second central rotating rod 30401, the first central rotating rod 304 is installed inside the second reserved cavity 307, the outer sides of the two second reserved cavities 307 are provided with rotating blocks 302, and two rotating blocks 302 are provided, and the two rotating blocks 302 are threadedly rotatably connected to the bottom plate 300 through the threaded walls 300-2;

[0028] The telescopic rod 30201 is installed at one end of the two rotating blocks 302. One end of the telescopic rod 30201 penetrates and extends into the interior of the rotating block 302. A placement cavity 30203 is provided inside the two rotating blocks 302. A telescopic spring 30204 is provided inside the placement cavity 30203. Both ends of the telescopic spring 30204 are respectively welded to the inner wall of the rotating block 302 and one end of the telescopic rod 30201. A high-strength thick spring coil 30202 is provided on the outer side of one end of the rotating block 302.

[0029] The two rotating blocks 302 are rotatably installed in the second reserved cavity 307 inside the base plate 300. After being fixed, the device may become loose due to mechanical vibration after being used for a period of time. The rotating block 302 can be rotated again to move the telescopic rod 30201 at one end of the rotating block 302 inward, and the pressure of the high-strength thick spring coil 30202 and the telescopic spring 30204 is shortened to provide a clamping force for the connection of the first center rotating rod 304, thereby avoiding the loosening of the first center rotating rod 304 after being fixed.

[0030] Example 2

[0031] See also Figure 3 A buffer pad 300 - 1 is arranged between the second central rotating rod 30401 and the bottom plate 300 .

[0032] See also Figure 1 A first reserved bolt hole 201 is provided inside both sides of the outer wall of the connecting rod 200, and there are two first reserved bolt holes 201. A second reserved bolt hole 202 is provided on the lower side of the two first reserved bolt holes 201, and there are two second reserved bolt holes 202. The two second reserved bolt holes 202 and the first reserved bolt hole 201 are formed integrally with the connecting rod 200.

[0033] The second reserved bolt hole 202 and the first reserved bolt hole 201 provide installation positions for the external connecting piece.

[0034] See also Figure 1 , the first inner cavity 101 of the positioning connecting column 100, the upper and lower sides of the front end surface of the positioning connecting column 100 are both provided with first reserved cavities 102, and there are four first reserved cavities 102, and the four first reserved cavities 102 are each provided with a mounting shaft 104, the first inner cavity 101 is provided with a first roller shaft 103, and there are two first roller shafts 103, and both ends of the two first roller shafts 103 are provided with central rotating rods 107.

[0035] The provision of the first roller 103 can effectively limit the position of the cutter head.

[0036] See also Figure 1 Both sides of the upper end surface of the positioning and connecting column 100 are provided with mounting hole grooves 105, and there are two mounting hole grooves 105. The two mounting hole grooves 105 are formed integrally with the positioning and connecting column 100, and bolts 106 are provided inside the two mounting hole grooves 105.

[0037] Working principle: The positioning connecting column 100 is installed on an external machine tool, and the cutter head passes through the first inner cavity 101 and the second inner cavity 301 inside the bottom plate 300. The cutter head cuts the material below through the high-speed movement of the machine tool. After the cutter head has been used on the equipment for a period of time, if the second roller 303 becomes loose, the rotating block 302 can be rotated again to move the telescopic rod 30201 at one end of the rotating block 302 inward, and the high-strength thick spring coil 30202 and the telescopic spring 30204 are shortened to provide a clamping force for the first center rotating rod 304 to avoid the instability of the connecting elements.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A positioning and clamping device for a tool head, comprising a positioning and connecting column (100), a connecting rod (200) being arranged below the positioning and connecting column (100), and a bottom plate (300) being arranged on the lower end surface of the connecting rod (200); Features: Also includes: The second inner cavity (301) is installed inside the bottom plate (300), a second reserved cavity (307) is arranged on one side of the outer wall of the bottom plate (300), and two second reserved cavities (307) are arranged, a second roller (303) is arranged inside the second inner cavity (301), and two second rollers (303) are arranged, the inner walls of the two second reserved cavities (307) are both provided with a threaded wall (300-2), and the threaded wall (300-2) is formed integrally with the inner wall of the second reserved cavity (307), and the two A first central rotating rod (304) is disposed at one end of the second roller shaft (303), and a second central rotating rod (30401) is disposed at the other end of the two second roller shafts (303). The first central rotating rod (304) is installed inside the second reserved cavity (307). A rotating block (302) is disposed on the outer side of the two second reserved cavities (307), and two rotating blocks (302) are disposed. The two rotating blocks (302) are both threadedly connected to the bottom plate (300) through the threaded wall (300-2). A telescopic rod (30201) is mounted on one end of the two rotating blocks (302); one end of the telescopic rod (30201) penetrates and extends into the interior of the rotating block (302); a placement cavity (30203) is provided inside the two rotating blocks (302); a telescopic spring (30204) is provided inside the placement cavity (30203); two ends of the telescopic spring (30204) are respectively welded to the inner wall of the rotating block (302) and one end of the telescopic rod (30201); a high-strength thick spring coil (30202) is provided on the outer side of one end of the rotating block (302).

2. A positioning and clamping device for a tool head according to claim 1, characterized in that: A buffer pad (300-1) is provided between the two second central rotating rods (30401) and the bottom plate (300).

3. A positioning and clamping device for a tool head according to claim 2, characterized in that: First reserved bolt holes (201) are arranged inside the outer walls of the connecting rod (200) on both sides, and two first reserved bolt holes (201) are arranged, and second reserved bolt holes (202) are arranged on the lower sides of the two first reserved bolt holes (201), and two second reserved bolt holes (202) are arranged, and the two second reserved bolt holes (202) and the first reserved bolt hole (201) are formed integrally with the connecting rod (200).

4. A positioning and clamping device for a tool head according to claim 1, characterized in that: The first inner cavity (101) of the positioning connecting column (100) is provided with first reserved cavities (102) on the upper and lower sides of the front end surface of the positioning connecting column (100), and there are four first reserved cavities (102), and the four first reserved cavities (102) are each provided with a mounting shaft (104), and the first inner cavity (101) is provided with a first roller shaft (103), and there are two first roller shafts (103), and both ends of the two first roller shafts (103) are provided with central rotating rods (107).

5. The positioning and clamping device for a tool head according to claim 1, characterized in that: Both sides of the upper end surface of the positioning connection column (100) are provided with mounting hole grooves (105), and two mounting hole grooves (105) are provided, and the two mounting hole grooves (105) are formed integrally with the positioning connection column (100).

6. A positioning and clamping device for a tool head according to claim 5, characterized in that: Bolts (106) are arranged inside the two mounting hole slots (105).

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