Fixing tool for part machining

Abstract

The fixing tool for part machining comprises an installation plate, a lifting block is fixed to the top of the installation plate, and a pushing mechanism, a clamping mechanism and a workpiece whole are arranged above the installation plate. The whole workpiece comprises a rectangular frame, a supporting rib and a special-shaped part body, and the rectangular frame, the supporting rib and the special-shaped part body are machined and manufactured in an integrated forming mode. The clamping mechanism comprises two mounting shells, the mounting shell on one side is fixed to the top of the lifting block, the inner wall of each mounting shell is rotationally connected with a two-way lead screw, the surface of each two-way lead screw is in threaded connection with two duplex sliding sleeves, T-shaped plates are fixed to the tops of the duplex sliding sleeves, and mounted bearings are fixed to the surfaces of the mounting shells; a transmission rod is fixed to the inner wall of the mounted bearing, and one end of the bidirectional lead screw penetrates through the mounting shell and is fixedly provided with a first bevel gear. The curved surface type special-shaped part clamping device solves the clamping problem of curved surface type special-shaped parts, and meanwhile the special-shaped parts are not prone to deformation in the machining process.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control processing technical field, concretely is a kind of fixed tooling for part processing. BACKGROUND

[0002] In numerical control processing, workpiece refers to the material or part being processed. Numerical control machine tool carries out cutting, drilling, milling and other operations on workpiece through programming instructions to manufacture finished product meeting design requirements.

[0003] Part in numerical control processing all solve a common problem, that is, the clamping and fixing of part. The existing clamping and fixing method has a common premise, that is, the shape of part is relatively regular, otherwise it cannot be fixed. But in reality, the shape of many parts is irregular, such as various complex curved surface model parts, and the traditional method will be invalid at this time. How to fix such parts becomes a difficult problem, and how to indirectly change irregular shape into regular shape for clamping and fixing again. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of fixed tooling for part processing, solve the clamping problem of curved surface special-shaped part, and make special-shaped part not easy to deform in the processing.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of fixed tooling for part processing, including mounting plate, the top of mounting plate is fixed with lifting block, the upper portion of mounting plate is provided with pushing mechanism, clamping mechanism and workpiece whole;

[0006] The workpiece whole includes rectangular frame, support rib and special-shaped part body, and the rectangular frame, support rib and special-shaped part body are integrally formed by processing;

[0007] The clamping mechanism includes two installation shells, one of the installation shells is fixed on the top of lifting block, the inner wall of installation shell is rotatably connected with bidirectional screw rod, the surface of bidirectional screw rod is threadedly connected with two double sliding sleeves, the top of double sliding sleeve is fixed with T-shaped plate, the surface of installation shell is fixed with bearing with seat, the inner wall of bearing with seat is fixed with transmission rod, one end of bidirectional screw rod penetrates installation shell and is fixed with first bevel gear, the surface of transmission rod is fixed with second bevel gear, the second bevel gear is engaged with first bevel gear, and expansion coupling is fixed between two transmission rods, and drive structure is installed on the surface of one side installation shell.

[0008] As a kind of part processing fixed tooling preferred scheme of the utility model, one side installation shell surface drive structure includes driving motor, the driving motor is fixedly connected with installation shell surface, third bevel gear is fixed to the output shaft of driving motor, fourth bevel gear is engaged on the surface of third bevel gear, fourth bevel gear is fixedly connected with one side transmission rod one end.

[0009] As a kind of part processing fixed tooling preferred scheme of the utility model, the third bevel gear is smaller than the fourth bevel gear.

[0010] As a kind of part processing fixed tooling preferred scheme of the utility model, the push mechanism includes hydraulic cylinder, the hydraulic cylinder is fixed to the top of mounting plate, the hydraulic cylinder one end is fixed with movable plate, one side installation shell is fixed to the top of movable plate, the movable plate bottom is fixed with sliding block, the sliding block surface is slidably connected with slide rail, the slide rail is fixed to the top of mounting plate.

[0011] As a kind of part processing fixed tooling preferred scheme of the utility model, the surface of T-shaped plate is fixed with spring, the surface of spring is fixed with clamping plate.

[0012] As a kind of part processing fixed tooling preferred scheme of the utility model, the inside of spring is provided with telescopic rod, one end of telescopic rod is fixedly connected with the surface of T-shaped plate, the other end of telescopic rod is fixedly connected with the surface of clamping plate.

[0013] As a kind of part processing fixed tooling preferred scheme of the utility model, the T-shaped plate between both sides is fixed with telescopic cover on the back surface, one end of telescopic cover on the back surface of T-shaped plate is fixedly connected with the surface of installation shell.

[0014] As a kind of part processing fixed tooling preferred scheme of the utility model, the inner wall of installation shell is fixed with guide rod, the double slip bush is slidably connected with the surface of guide rod.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1、In the utility model, the rectangular frame is intentionally enlarged by a certain size on one side after wrapping the special-shaped part body, which is used as clamping material of the special-shaped part body, the rectangular frame, the supporting rib and the special-shaped part body are machined as a whole, which can solve the clamping problem, because the rectangular frame can form a rectangular shell, thereby facilitating clamping, after the special-shaped part body is machined, the supporting ribs are finally milled off, which is simple and effective, and the biggest advantage of the fixing method is to solve the clamping and fixing problem of irregular parts, and the possibility of part deformation is reduced.

[0017] 2、The utility model discloses when the workpiece whole is placed to two installation shell surfaces, the position of one side installation shell can be moved to the push mechanism, and the telescopic coupling can be telescopic, and one side installation shell position adjustment is guaranteed, and two transmission rods can carry out normal rotation, make the position between two sides installation shell can satisfy the workpiece whole placement demand of multiple lengths, and the drive structure can make transmission rod rotate, thereby making the second bevel gear can be through the meshing of first bevel gear, and drive two -way screw rod to rotate, thereby making two double -sleeve of two -way screw rod surfaces can be moved to each other under the influence of screw, and two sides T -shaped board can be close to each other, this makes the workpiece whole finally can get clamping fixed effect, and this completes the fixed operation of workpiece whole. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the three -dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is the structure schematic diagram of the push mechanism of the utility model;

[0020] Figure 3 It is the structure schematic diagram of the clamping mechanism in the utility model;

[0021] Figure 4 It is the partial section structure schematic diagram of the clamping mechanism in the utility model;

[0022] Figure 5 It is the section structure schematic diagram of the workpiece whole in the utility model.

[0023] In the drawing: 1, mounting plate, 2, lifting block, 3, push mechanism, 301, hydraulic cylinder, 302, movable plate, 303, slide rail, 304, sliding block, 4, clamping mechanism, 401, installation shell, 402, two -way screw rod, 403, double -sleeve, 404, T-shaped board, 405, bearing with seat, 406, transmission rod, 407, first bevel gear, 408, second bevel gear, 409, telescopic coupling, 410, drive motor, 411, third bevel gear, 412, fourth bevel gear, 413, guide rod, 414, spring, 415, clamping plate, 416, telescopic rod, 417, telescopic cover, 5, workpiece whole, 501, rectangular frame, 502, support rib, 503, special-shaped part body. DETAILED DESCRIPTION

[0024] Please refer to Figures 1-5 A kind of fixed tool for part machining, including mounting plate 1, lifting block 2 is fixed on the top of mounting plate 1, push mechanism 3, clamping mechanism 4 and workpiece whole 5 are provided on the top of mounting plate 1.

[0025] Please refer to Figure 5The workpiece whole 5 comprises a rectangular frame 501, support ribs 502 and a special-shaped body 503, and the rectangular frame 501, the support ribs 502 and the special-shaped body 503 are integrally formed.

[0026] The rectangular frame 501 is intentionally enlarged on one side by a certain size after wrapping the special-shaped body 503, and it is used as a clamping material of the special-shaped body 503, the rectangular frame 501, the support ribs 502 and the special-shaped body 503 are processed as a whole, so that the clamping problem can be solved, because the rectangular frame 501 can form a rectangular shell, thereby facilitating clamping, after the special-shaped body 503 is processed, the support ribs 502 are finally milled off, which is simple and effective, and the biggest advantage of the fixing method is to solve the clamping and fixing problem of irregular parts, and the possibility of part deformation is reduced.

[0027] Please refer to Figure 1 , Figure 3 and Figure 4 , the clamping mechanism 4 comprises two mounting shells 401, the top of the mounting shell 401 is provided with an opening, one side of the mounting shell 401 is fixed on the top of the lifting block 2, the inner wall of the mounting shell 401 is rotatably connected with a bidirectional screw rod 402, the surface of the bidirectional screw rod 402 is threadedly connected with two double sliding sleeves 403, the top of the double sliding sleeve 403 is fixed with a T-shaped plate 404, the surface of the mounting shell 401 is fixed with a bearing with seat 405, the inner wall of the bearing with seat 405 is fixed with a transmission rod 406, one end of the bidirectional screw rod 402 penetrates through the mounting shell 401 and is fixed with a first bevel gear 407, the surface of the transmission rod 406 is fixed with a second bevel gear 408, the second bevel gear 408 is engaged with the first bevel gear 407, the two transmission rods 406 are fixed with a telescopic coupling 409, and one side of the mounting shell 401 is provided with a driving structure.

[0028] When the workpiece whole 5 is placed on the surface of the two mounting shells 401, the pushing mechanism 3 can adjust the position of the mounting shell 401 connected thereto, and the telescopic coupling 409 can be telescopic, so that after the position of one side of the mounting shell 401 is adjusted, the two transmission rods 406 can normally rotate, and the positions between the two mounting shells 401 can meet the placement requirements of workpiece wholes 5 of various lengths. The driving structure can make the transmission rod 406 rotate, so that the second bevel gear 408 can drive the bidirectional screw rod 402 to rotate through the engagement with the first bevel gear 407, so that the two double sliding sleeves 403 on the surface of the bidirectional screw rod 402 can move towards each other under the influence of the thread, and the two T-shaped plates 404 can approach each other, which makes the workpiece whole 5 finally get the clamping and fixing effect, so as to complete the fixing operation of the workpiece whole 5.

[0029] Further, the surface drive structure of the one side mounting shell 401 comprises a drive motor 410, the drive motor 410 is fixedly connected with the surface of the mounting shell 401, the output shaft of the drive motor 410 is fixedly connected with a third bevel gear 411, the third bevel gear 411 is meshed with a fourth bevel gear 412, and the fourth bevel gear 412 is fixedly connected with one end of the one side transmission rod 406.

[0030] When the drive motor 410 is started, the third bevel gear 411 can be driven to rotate, so that the third bevel gear 411 can drive the one side transmission rod 406 to rotate through the meshing of the fourth bevel gear 412, and the one side transmission rod 406 can drive the other side transmission rod 406 to rotate synchronously through the cooperation of the telescopic coupling 409, so that the second bevel gear 408 on the surface of the transmission rod 406 can drive the bidirectional screw rod 402 to rotate through the meshing of the first bevel gear 407, thereby realizing the synchronous rotation effect of the two bidirectional screw rods 402 when the drive motor 410 is started.

[0031] Further, the third bevel gear 411 (the outer diameter) is smaller than the fourth bevel gear 412 (the outer diameter).

[0032] Through this design, the fourth bevel gear 412 and the transmission rod 406 can obtain a speed reduction effect, so as to avoid the case that the position of the T-shaped plate 404 is not convenient to accurately adjust due to the too fast rotation speed of the output shaft of the drive motor 410.

[0033] Further, please refer to Figure 2 The pushing mechanism 3 comprises a hydraulic cylinder 301, the hydraulic cylinder 301 is fixed on the top of the mounting plate 1, one end of the hydraulic cylinder 301 is fixedly connected with a movable plate 302, one of the mounting shells 401 is fixed on the top of the movable plate 302, the bottom of the movable plate 302 is fixedly connected with a sliding block 304, the surface of the sliding block 304 is slidably connected with a sliding rail 303, and the sliding rail 303 is fixed on the top of the mounting plate 1.

[0034] When the hydraulic cylinder 301 is started, the movable plate 302 and the sliding block 304 can slide on the surface of the sliding rail 303, so as to change the distance between the two mounting shells 401, thereby realizing the effect of adapting to more length workpieces.

[0035] Further, the T-shaped plate 404 is fixedly connected with a spring 414, and the spring 414 is fixedly connected with a clamping plate 415.

[0036] When the two T-shaped plates 404 move towards each other, the two clamping plates 415 can first contact the surface of the rectangular frame 501, and the spring 414 is compressed under stress, so as to avoid damaging and deforming the rectangular frame 501 during clamping.

[0037] Further, the inside of the spring 414 is provided with a telescopic rod 416, one end of the telescopic rod 416 is fixedly connected with the surface of the T-shaped plate 404, and the other end of the telescopic rod 416 is fixedly connected with the surface of the clamping plate 415.

[0038] The telescopic rod 416 can support the clamping plate 415, avoid the spring 414 from bending up and down, and also avoid the clamping plate 415 from moving up and down.

[0039] Further, the telescopic cover 417 is fixed between the two T-shaped plates 404 and on the back surface of the T-shaped plate 404, one end of the telescopic cover 417 on the back surface of the T-shaped plate 404 is fixedly connected with the surface of the mounting shell 401.

[0040] The telescopic cover 417 can be telescopic, which ensures that the T-shaped plate 404 can normally move, and also makes the telescopic cover 417 can shield the top opening of the mounting shell 401, so that dust and debris are not easy to enter the inside of the mounting shell 401.

[0041] Further, the mounting shell 401 is fixedly connected with the guide rod 413, and the double sliding sleeve 403 is slidably connected with the surface of the guide rod 413.

[0042] The double sliding sleeve 403 can slide on the surface of the guide rod 413, which helps to maintain the straightness and stability of the double sliding sleeve 403, and avoids the double sliding sleeve 403 from rotating on the surface of the double lead screw 402.

[0043] Working principle: when the workpiece whole 5 is placed on the surface of the two mounting shells 401, the hydraulic cylinder 301 can move the position of one side of the mounting shell 401, and the telescopic coupling 409 can be telescopic, so as to ensure that after the position of one side of the mounting shell 401 is adjusted, the two transmission rods 406 can normally rotate, so that the positions between the two mounting shells 401 can meet the placing requirements of workpiece whole 5 of various lengths, and the driving motor 410 can be started to make the two double lead screws 402 rotate, so that the two double sliding sleeves 403 on the surface of the double lead screw 402 can move towards each other under the influence of the screw thread, so that the two T-shaped plates 404 can be close to each other, the clamping plate 415 can be in contact with the surface of the rectangular frame 501, and the spring 414 can provide a buffering effect, which makes the workpiece whole 5 finally can get clamping and fixing effect, so as to complete the fixing operation of the workpiece whole 5.

[0044] It should be noted that the one-piece forming method of the workpiece whole 5 is not limited to a specific shape of the special-shaped part body 503, so the attachment Figure 5Just one of them, in actual production, the spatial position of the support rib 502 will change due to the different shape structures of the special-shaped part body 503, and the overall size of the rectangular frame 501 will also change accordingly, but the idea is almost the same, the purpose is to convert the irregular special-shaped part body 503 into a regular rectangular frame 501, so as to facilitate clamping.

[0045] The above are only preferred embodiments of the present application, and are not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fixing tool for machining a part, comprising a mounting plate (1), characterized in that: The lifting block (2) is fixed on the top of the mounting plate (1), and a pushing mechanism (3), a clamping mechanism (4) and a workpiece whole (5) are arranged above the mounting plate (1); The workpiece whole (5) comprises a rectangular frame (501), a support rib (502) and a special-shaped part body (503), and the rectangular frame (501), the support rib (502) and the special-shaped part body (503) are integrally formed. The clamping mechanism (4) comprises two mounting shells (401), one of which is fixed on the top of the lifting block (2), a double-threaded rod (402) is rotatably connected to the inner wall of the mounting shell (401), two double sliding sleeves (403) are threadedly connected to the surface of the double-threaded rod (402), a T-shaped plate (404) is fixed to the top of the double sliding sleeve (403), a bearing (405) is fixed to the surface of the mounting shell (401), a transmission rod (406) is fixed to the inner wall of the bearing (405), a first bevel gear (407) is fixed to one end of the double-threaded rod (402) and penetrates through the mounting shell (401), a second bevel gear (408) is fixed to the surface of the transmission rod (406), the second bevel gear (408) is engaged with the first bevel gear (407), a telescopic shaft coupling (409) is fixed between the two transmission rods (406), and a driving structure is arranged on one side of the surface of the mounting shell (401).

2. The fixing tool for machining a part according to claim 1, characterized in that: The driving structure arranged on one side of the surface of the mounting shell (401) comprises a driving motor (410), the driving motor (410) is fixedly connected to the surface of the mounting shell (401), a third bevel gear (411) is fixed to the output shaft of the driving motor (410), a fourth bevel gear (412) is engaged with the surface of the third bevel gear (411), and the fourth bevel gear (412) is fixedly connected to one end of the transmission rod (406).

3. The fixing tool for machining a part according to claim 2, characterized in that: The third bevel gear (411) is smaller than the fourth bevel gear (412).

4. The fixing tool for machining a part according to claim 1, characterized in that: The pushing mechanism (3) comprises a hydraulic cylinder (301), the hydraulic cylinder (301) is fixed to the top of the mounting plate (1), a movable plate (302) is fixed to one end of the hydraulic cylinder (301), one side of the mounting shell (401) is fixed to the top of the movable plate (302), a sliding block (304) is fixed to the bottom of the movable plate (302), a sliding rail (303) is slidably connected to the surface of the sliding block (304), and the sliding rail (303) is fixed to the top of the mounting plate (1).

5. The fixture of claim 1 wherein: The T-shaped plate (404) is fixed with a spring (414) on the surface, and the spring (414) is fixed with a clamping plate (415) on the surface.

6. The fixing tool for machining a part according to claim 5, characterized in that: The spring (414) is provided with a telescopic rod (416) on the inner side, one end of the telescopic rod (416) is fixedly connected to the surface of the T-shaped plate (404), and the other end of the telescopic rod (416) is fixedly connected to the surface of the clamping plate (415).

7. The fixture of claim 1 wherein: The T-shaped plates (404) on both sides are fixed with telescopic covers (417) on the back surfaces, and one end of the telescopic cover (417) on the back surface of the T-shaped plate (404) is fixedly connected to the surface of the mounting shell (401).

8. The fixture of claim 1 wherein: The inner wall of the mounting shell (401) is fixed with a guide rod (413), and the double sliding sleeve (403) is in surface sliding connection with the guide rod (413).

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