Clamp capable of realizing circumferential positioning of end part of blade

Abstract

The utility model discloses a fixture capable of circumferentially positioning the end part of a blade, which comprises a fixture bottom plate, a fixture supporting block is arranged on the fixture bottom plate, and a first fixture block, a second fixture block, a third fixture block and a fourth fixture block are respectively arranged on the fixture supporting block. The first clamp block, the second clamp block, the third clamp block and the fourth clamp block form a concentric-square-shaped structure, and the blade is installed on the clamp supporting block and is clamped and fixed through the first clamp block, the second clamp block, the third clamp block and the fourth clamp block. The clamp capable of achieving circumferential positioning on the end portion of the blade is simple in structure, convenient to use and capable of conducting circumferential positioning and fixing on the end portion of the blade, and therefore stability of follow-up production and machining of the blade is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning fixture equipment, and in particular relates to a fixture capable of realizing circumferential positioning of a blade end. Background Art

[0002] Engine blades are typical thin-walled structural parts, which generally have the characteristics of thin wall, poor rigidity and high precision requirements. They have poor processing properties and are prone to processing deformation under the influence of factors such as cutting force, clamping force and cutting heat. Therefore, during the processing, the positioning and clamping of blades becomes increasingly important. The quality of blade positioning and clamping often determines the quality of subsequent blade processing.

[0003] The existing positioning and fixing equipment for blades is usually clamped and positioned by means of claws, which has poor positioning stability. At the same time, since the existing claws are relatively fixed in position, the surface of the blades is often damaged during the blade clamping process. At the same time, since the blades are flat in structure, traditional clamps can only clamp the flat surface of the blades when clamping them, resulting in poor positioning effect. The blades rotate during production and processing. When the blades are fixed circumferentially, they are easily damaged, which in turn affects the quality of subsequent production and processing of the blades. Utility Model Content

[0004] The utility model aims to solve the above problems and provide a fixture which has a simple structure, is easy to use, can be installed on existing machine tools and equipment, and can realize circumferential positioning of the end of a blade.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a clamp capable of realizing circumferential positioning of the blade end, comprising a clamp base plate, a clamp support block is provided on the clamp base plate, and the clamp support block is respectively provided with a first clamp block, a second clamp block, a third clamp block and a fourth clamp block, wherein the first clamp block, the second clamp block, the third clamp block and the fourth clamp block constitute a circular structure, and the blade is mounted on the clamp support block and clamped and fixed by the first clamp block, the second clamp block, the third clamp block and the fourth clamp block.

[0006] Preferably, the clamp base plate is a disc structure, and is provided with a clamp base plate center hole, a clamp base plate first hole, a clamp base plate second hole and a clamp base plate third hole. The first hole of the clamp base plate is a blind hole, the second hole of the clamp base plate and the third hole of the clamp base plate are through holes, the second hole of the clamp base plate is a threaded hole, and the third hole of the clamp base plate is distributed in a circular array with the clamp base plate center hole as the center.

[0007] Preferably, the clamp support block is a block structure, the cross-section of the clamp support block is a "convex" shape, and the clamp support block is provided with a first hole of the clamp support block, a second hole of the clamp support block, a third hole of the clamp support block, a fourth hole of the clamp support block, a fifth hole of the clamp support block and a sixth hole of the clamp support block, the first hole of the clamp support block is located at the end of the clamp support block and is a blind hole; the second hole of the clamp support block is located at the other end of the clamp support block and is a blind hole, the number of the second holes of the clamp support block is four and they are evenly distributed; the number of the third holes of the clamp support block is two and they are symmetrically distributed on the clamp support block On the side of the clamp support block, the third hole of the clamp support block is a blind hole; the number of the fourth holes of the clamp support block is four and they are symmetrically distributed on the other side of the clamp support block, and the fourth hole of the clamp support block is a blind hole; the number of the fifth holes of the clamp support block is four and they are symmetrically distributed at the bottom of the clamp support block, and the fifth hole of the clamp support block is a through hole; the number of the sixth holes of the clamp support block is two and they are distributed at both ends of the bottom of the clamp support block, and the sixth hole of the clamp support block is a through hole; the first hole of the clamp support block, the second hole of the clamp support block, the third hole of the clamp support block and the fourth hole of the clamp support block are all threaded holes.

[0008] Preferably, the first clamp block is a rectangular plate-like structure, and a first clamp block through hole is provided on the first clamp block. The number of the first clamp block through holes is four and they are symmetrically distributed at both ends of the first clamp block. After the bolt passes through the first clamp block through hole, its end is threadedly connected to the fourth hole of the clamp support block.

[0009] Preferably, the second clamp block is an elongated block structure, the cross-section of the second clamp block is a "U"-shaped structure, the second clamp block is provided with a second clamp block through hole, the number of the second clamp block through holes is two and they are distributed in parallel, and the bolt passes through the second clamp block through hole and is threadedly connected to the third hole of the clamp support block.

[0010] Preferably, the third clamp block is a block structure, the cross section of the third clamp block is a "U"-shaped structure, the third clamp block is provided with a third clamp block through hole, and the bolt passes through the third clamp block through hole and is threadedly connected to the first hole of the clamp support block.

[0011] Preferably, the fourth clamp block is a block structure, and is provided with a fourth clamp block through hole. The number of the fourth clamp block through holes is four and they are symmetrically distributed. The bolt passes through the fourth clamp block through hole and is threadedly connected to the second hole of the clamp support block.

[0012] The beneficial effects of the utility model are as follows: the fixture provided by the utility model can realize circumferential positioning of the blade end, has a simple structure, is easy to use, and can circumferentially position and fix the blade end, thereby ensuring the stability of subsequent production and processing of the blade. At the same time, compared with the traditional method of clamping and positioning by a three-jaw or four-jaw chuck, the first clamp block, the second clamp block, the third clamp block and the fourth clamp block for fixing the blade end of the utility model are all individually adjustable structures, which greatly increases the flexibility and practicality of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a fixture capable of circumferentially positioning the end of a blade according to the utility model;

[0014] Figure 2 It is a structural schematic diagram of the bottom plate of the fixture of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the clamp support block of the utility model;

[0016] Figure 4 It is a schematic diagram of the lateral structure of the clamp support block of the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the rear direction of the clamp support block of the utility model;

[0018] Figure 6 It is a structural schematic diagram of the first clamp block of the utility model;

[0019] Figure 7 It is a structural schematic diagram of the second fixture block of the utility model;

[0020] Figure 8 It is a structural schematic diagram of the third clamp block of the utility model;

[0021] Fig. 9 It is a structural schematic diagram of the fourth clamp block of the utility model.

[0022] Explanation of the accompanying drawings: 1. clamp base plate; 2. clamp support block; 21. first clamp block; 22. second clamp block; 23. third clamp block; 24. fourth clamp block; 10. center hole of clamp base plate; 11. first hole of clamp base plate; 12. second hole of clamp base plate; 13. third hole of clamp base plate; 201. first hole of clamp support block; 202. second hole of clamp support block; 203. third hole of clamp support block; 204. fourth hole of clamp support block; 205. fifth hole of clamp support block; 206. sixth hole of clamp support block; 211. through hole of first clamp block; 221. through hole of second clamp block; 231. through hole of third clamp block. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0024] like Figures 1 to 9 As shown, the utility model provides a clamp capable of achieving circumferential positioning of the blade end, including a clamp base plate 1, a clamp support block 2 is provided on the clamp base plate 1, and a first clamp block 21, a second clamp block 22, a third clamp block 23 and a fourth clamp block 24 are respectively provided on the clamp support block 2, the first clamp block 21, the second clamp block 22, the third clamp block 23 and the fourth clamp block 24 constitute a circular structure, and the blade is mounted on the clamp support block 2 and is clamped and fixed by the first clamp block 21, the second clamp block 22, the third clamp block 23 and the fourth clamp block 24.

[0025] In actual use, the clamp base plate 1 is installed on the rotating shaft of the existing machine tool equipment, and then the end of the blade is clamped by adjusting the first clamp block 21, the second clamp block 22, the third clamp block 23 and the fourth clamp block 24. When it is necessary to clamp the blade at both ends, two of the utility models are respectively installed in the corresponding existing machine tools to clamp and fix the two ends of the blade. At the same time, according to the different thicknesses at the two ends of the blade, the positions and tightness of the first clamp block 21, the second clamp block 22, the third clamp block 23 and the fourth clamp block 24 are adjusted respectively, so as to better achieve the clamping and fixing of the blade.

[0026] The fixture base plate 1 is a disc structure, and is provided with a fixture base plate center hole 10, a fixture base plate first hole 11, a fixture base plate second hole 12 and a fixture base plate third hole 13. The fixture base plate first hole 11 is a blind hole, the fixture base plate second hole 12 and the fixture base plate third hole 13 are through holes, the fixture base plate second hole 12 is a threaded hole, and the fixture base plate third hole 13 is distributed in a circular array with the fixture base plate center hole 10 as the center.

[0027] The rotating shaft end of the existing external machine tool equipment is inserted into the center hole 10 of the fixture bottom plate and fixed, thereby connecting the fixture bottom plate 1 to the existing production and processing equipment. The connecting shaft of the external equipment can be inserted into the third hole 13 of the fixture bottom plate to fix the fixture bottom plate 1. The fixture bottom plate 1 can be firmly fixed without shaking through the circumferentially arranged third holes 13 of the fixture bottom plate.

[0028] like Figures 3 to 5As shown, the clamp support block 2 is a block structure, and the cross section of the clamp support block 2 is a "convex" shape. The clamp support block 2 is provided with a first clamp support block hole 201, a second clamp support block hole 202, a third clamp support block hole 203, a fourth clamp support block hole 204, a fifth clamp support block hole 205, and a sixth clamp support block hole 206. The first clamp support block hole 201 is located at the end of the clamp support block 2 and is a blind hole. The second clamp support block hole 202 is located at the other end of the clamp support block 2 and is a blind hole. The number of the second clamp support block holes 202 is four and evenly distributed. The number of the third clamp support block holes 203 is two and symmetrically distributed on the side of the clamp support block 2. The third clamp support block holes 203 are blind holes. The number of the fourth clamp support block holes 204 is four and symmetrically distributed on the other side of the clamp support block 2. The fourth clamp support block holes 204 are blind holes. The number of the fifth holes 205 of the clamp support block is four and they are symmetrically distributed at the bottom of the clamp support block 2, and the fifth holes 205 of the clamp support block are through holes. The number of the sixth holes 206 of the clamp support block is two and they are distributed at both ends of the bottom of the clamp support block 2, and the sixth holes 206 of the clamp support block are through holes. The first hole 201 of the clamp support block, the second hole 202 of the clamp support block, the third hole 203 of the clamp support block, and the fourth hole 204 of the clamp support block are all threaded holes.

[0029] After the bolt passes through the fifth hole 205 of the clamp support block, it is threadedly matched with the second hole 12 of the clamp base plate, thereby fixing the clamp support block 2 to the clamp base plate 1. A positioning pin is installed in the first hole 11 of the clamp base plate, and the other end of the positioning pin is located in the sixth hole 206 of the clamp support block to play a positioning role. After the bolt passes through the first clamp block 21, it is threadedly matched with the fourth hole 204 of the clamp support block, thereby fixing the first clamp block 21 to the clamp support block 2. After the bolt passes through the second clamp block 22, it is threadedly matched with the third hole 203 of the clamp support block, thereby fixing the second clamp block 22 to the clamp support block 2. After the bolt passes through the third clamp block 23, it is threadedly matched with the first hole 201 of the clamp support block, thereby fixing the third clamp block 23 to the clamp support block 2. After the bolt passes through the fourth clamp block 24, it is threadedly matched with the second hole 202 of the clamp support block, thereby fixing the fourth clamp block 24 to the clamp support block 2. Then, the tightness of the contact between the first clamp block 21, the second clamp block 22, the third clamp block 23 and the fourth clamp block 24 and the blade is adjusted respectively, so that the clamping and positioning of the blade is stable.

[0030] like Figure 6 As shown, the first clamp block 21 is a rectangular plate-like structure, and a first clamp block through hole 211 is provided on the first clamp block 21. The number of the first clamp block through holes 211 is four and they are symmetrically distributed at both ends of the first clamp block 21. After the bolt passes through the first clamp block through hole 211, its end is threadedly connected to the fourth hole 204 of the clamp support block.

[0031] like Figure 7 As shown, the second clamp block 22 is a long block structure, and the cross-section of the second clamp block 22 is a "U"-shaped structure. The second clamp block 22 is provided with a second clamp block through hole 221. The number of the second clamp block through holes 221 is two and they are distributed in parallel. After the bolt passes through the second clamp block through hole 221, it is threadedly connected to the third hole 203 of the clamp support block.

[0032] The cross section of the through hole 221 of the second clamp block is an elliptical structure. By adjusting the position of the bolt in the through hole 221 of the second clamp block, the relative position of the second clamp block 22 and the clamp support block 2 is adjusted, so as to better achieve the clamping and positioning of the blade.

[0033] like Figure 8 As shown, the third clamp block 23 is a block structure, and the cross section of the third clamp block 23 is a "U"-shaped structure. The third clamp block 23 is provided with a third clamp block through hole 231, and the bolt passes through the third clamp block through hole 231 and is threadedly connected to the first hole 21 of the clamp support block.

[0034] The cross section of the third clamp block through hole 231 is an elliptical structure, and the bolt can move in the third clamp block through hole 231. When the bolt moves to a set position in the third clamp block through hole 231, the bolt is rotated to fix the third clamp block 23 and the clamp support block 2.

[0035] like Fig. 9 As shown, the fourth clamp block 24 is a block structure, and is provided with a fourth clamp block through hole 241. The number of the fourth clamp block through holes 241 is four and they are symmetrically distributed. The bolt passes through the fourth clamp block through hole 241 and is threadedly connected to the second hole 22 of the clamp support block.

[0036] In actual use, according to the specific conditions of the on-site processing and production equipment, the number of the utility model is two and symmetrically distributed. Fix the fixture base plate 1 on the corresponding rotating shaft equipment, and then adjust the tightness of the first fixture block 21, the second fixture block 22, the third fixture block 23 and the fourth fixture block 24 against the blades respectively, so that the blade clamping and positioning is stable. Fix the blades at both ends respectively, and at the same time, according to the different thicknesses at both ends of the blades, adjust the tightness of the corresponding first fixture block 21, the second fixture block 22, the third fixture block 23 and the fourth fixture block 24 respectively, and then completely clamp and position the blades. Compared with the traditional positioning method, the positioning method of the utility model is more flexible and more adaptable. Compared with the traditional equipment that uses the clamp to position the blade in one direction, the utility model is more flexible and more adaptable to the fixing and adjustment of the blades.

[0037] Those skilled in the art will appreciate that the embodiments described herein are intended to help readers understand the principles of the present invention, and should be understood that the protection scope of the present invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific variations and combinations based on the technical inspirations disclosed in the present invention without departing from the essence of the present invention, and these variations and combinations are still within the protection scope of the present invention.

Claims

1. A fixture capable of circumferentially positioning a blade end, characterized in that: The invention comprises a clamp base plate (1), a clamp support block (2) is arranged on the clamp base plate (1), a first clamp block (21), a second clamp block (22), a third clamp block (23) and a fourth clamp block (24) are respectively arranged on the clamp support block (2), the first clamp block (21), the second clamp block (22), the third clamp block (23) and the fourth clamp block (24) form a circular structure, and the blade is mounted on the clamp support block (2) and is clamped and fixed by the first clamp block (21), the second clamp block (22), the third clamp block (23) and the fourth clamp block (24).

2. A fixture capable of circumferentially positioning a blade end according to claim 1, characterized in that: The clamp base plate (1) is a disc structure, and is provided with a clamp base plate center hole (10), a clamp base plate first hole (11), a clamp base plate second hole (12) and a clamp base plate third hole (13); the clamp base plate first hole (11) is a blind hole, the clamp base plate second hole (12) and the clamp base plate third hole (13) are through holes, the clamp base plate second hole (12) is a threaded hole, and the clamp base plate third hole (13) is distributed in a circular array with the clamp base plate center hole (10) as the center.

3. A fixture capable of circumferentially positioning a blade end according to claim 1, characterized in that: The clamp support block (2) is a block structure, and the cross section of the clamp support block (2) is a "convex" shape. The clamp support block (2) is provided with a first clamp support block hole (201), a second clamp support block hole (202), a third clamp support block hole (203), a fourth clamp support block hole (204), a fifth clamp support block hole (205) and a sixth clamp support block hole (206). The first clamp support block hole (201) is located at the end of the clamp support block (2) and is a blind hole; the second clamp support block hole (202) is located at the other end of the clamp support block (2) and is a blind hole. The number of the second clamp support block holes (202) is four and they are evenly distributed; the number of the third clamp support block holes (203) is two and they are symmetrically distributed on the clamp support block (2). On the side of the clamp support block (2), the third hole (203) of the clamp support block is a blind hole; the number of the fourth holes (204) of the clamp support block is four and they are symmetrically distributed on the other side of the clamp support block (2), and the fourth hole (204) of the clamp support block is a blind hole; the number of the fifth holes (205) of the clamp support block is four and they are symmetrically distributed on the bottom of the clamp support block (2), and the fifth hole (205) of the clamp support block is a through hole; the number of the sixth holes (206) of the clamp support block is two and they are distributed at both ends of the bottom of the clamp support block (2), and the sixth hole (206) of the clamp support block is a through hole; the first hole (201) of the clamp support block, the second hole (202) of the clamp support block, the third hole (203) of the clamp support block and the fourth hole (204) of the clamp support block are all threaded holes.

4. A fixture capable of circumferentially positioning a blade end according to claim 1, characterized in that: The first clamp block (21) is a rectangular plate-shaped structure. The first clamp block (21) is provided with a first clamp block through hole (211). The number of the first clamp block through holes (211) is four and they are symmetrically distributed at both ends of the first clamp block (21). After the bolt passes through the first clamp block through hole (211), the end of the bolt is threadedly connected to the fourth hole (204) of the clamp support block.

5. A fixture capable of circumferentially positioning a blade end according to claim 1, characterized in that: The second clamp block (22) is a long block structure, the cross section of the second clamp block (22) is a "U"-shaped structure, the second clamp block (22) is provided with a second clamp block through hole (221), the number of the second clamp block through holes (221) is two and they are distributed in parallel, and the bolt passes through the second clamp block through hole (221) and is threadedly connected to the third hole (203) of the clamp support block.

6. A fixture capable of circumferentially positioning a blade end according to claim 1, characterized in that: The third clamp block (23) is a block structure, and the cross section of the third clamp block (23) is a "U"-shaped structure. The third clamp block (23) is provided with a third clamp block through hole (231), and a bolt passes through the third clamp block through hole (231) and is threadedly connected to the first hole (201) of the clamp support block.

7. A fixture capable of circumferentially positioning a blade end according to claim 1, characterized in that: The fourth clamp block (24) is a block structure. The fourth clamp block (24) is provided with a fourth clamp block through hole (241). The number of the fourth clamp block through holes (241) is four and they are symmetrically distributed. Bolts pass through the fourth clamp block through holes (241) and are threadedly connected to the second hole (202) of the clamp support block.

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