Machining device for numerical control lathe

Abstract

The utility model discloses a numerical control lathe machining device which comprises three clamping jaw connecting seats, a connecting groove matched with a three-jaw chuck is formed in one side face of each clamping jaw connecting seat, convex racks matched with the three-jaw chuck are arranged on the two sides of each connecting groove, and a clamping jaw is fixedly connected to the side, away from the connecting groove, of each clamping jaw connecting seat. The bottom face of the clamping jaw is correspondingly matched with the surface of the clamping jaw connecting base, the top and the bottom of one side of the clamping jaw extend outwards to form clamping parts, an avoiding groove is formed between the two clamping parts, and the middle of the other side of the clamping jaw extends outwards horizontally to be flush with the side wall of the clamping jaw connecting base to form a connecting table. Compared with a four-jaw chuck, the three-jaw chuck is adopted for clamping and machining, so that the machining cost is greatly saved, meanwhile, the circle center positions of the two shaft ends of a part to be machined are convenient to adjust, the yield of products is improved, and the consistency of the products is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of low guide vane processing, and particularly relates to a numerical lathe processing device. Background Art

[0002] The low guide vane is a new aviation part. It requires more than 20 processes from the blank to the final part. Currently, it can be processed using the standard four-jaw chuck on the market. However, during the processing, the height and size are not well matched, and the blade part of the part is not well avoided, resulting in a low yield rate of the processed parts, poor part consistency, and low processing efficiency. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a lathe processing device in view of the above-mentioned deficiencies in the existing technology, which adopts a three-jaw chuck for clamping processing, and can effectively improve the processing efficiency and the yield rate of the processed parts.

[0004] The technical solution adopted by the present invention is: a numerical lathe processing device, including three jaw connecting seats, each jaw connecting seat has a connecting groove matching the three-jaw chuck on one side, and convex racks matching the three-jaw chuck are provided on both sides of the connecting groove, and each of the jaw connecting seats is fixedly connected to a clamping jaw on the side away from the connecting groove, and the bottom surface of the clamping jaw corresponds to the surface of the jaw connecting seat, and the top and bottom of one side of the clamping jaw extend outward to form a clamping part, and an avoidance groove is formed between the two clamping parts. The middle part of the other side of the clamping jaw extends horizontally outward to be flush with the side wall of the jaw connecting seat to form a connecting platform, and fixing holes are respectively provided at the top of the side of the clamping jaw away from the avoidance groove and the connecting platform, and connecting holes are provided on the jaw connecting seat corresponding to the fixing holes, and locking screws matching the connecting holes are provided in the fixing holes.

[0005] Preferably, the inner clamping surface of the clamping portion is an arc surface, and the inner side surfaces of the clamping portion at the top and bottom of the three clamping jaws are all circular.

[0006] Preferably, the cross-section of the clamping jaw is a right triangle, one side of the right-angled short side of the clamping jaw is placed on the clamping jaw connecting seat, the top and bottom of one side of the right-angled long side of the clamping jaw extend outward to form a clamping part, an avoidance groove is formed between the two clamping parts, and the middle part of the oblique side of the clamping jaw extends horizontally outward to be flush with the side wall of the clamping jaw connecting seat to form a connecting platform.

[0007] The beneficial effects of the present invention are:

[0008] (1) By setting three jaw connecting seats for clamping with the three-jaw chuck of the machine tool, and by connecting the grooves and the convex teeth on the three-jaw chuck, the three jaw connecting seats can slide synchronously on the three-jaw chuck to adjust the position of the jaw connecting seats, that is, to adjust the position of the clamping jaws;

[0009] (2) The clamping jaws are provided with two clamping parts. The short axis end of the part is clamped by the clamping parts at the bottom of the three clamping jaws, and the long axis end of the part is clamped by the clamping parts at the top of the three clamping jaws. The avoidance groove between the top and bottom of the clamping jaws can effectively avoid the blade part of the part.

[0010] The utility model adopts a three-jaw chuck for clamping processing, which greatly saves processing costs compared to a four-jaw chuck. At the same time, it is convenient to adjust the center position of the two axis ends of the parts to be processed, thereby improving the product yield and ensuring the consistency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 This is a cross-sectional view of the clamping jaws of the present invention.

[0013] In the figure: 1. Clamping claw connecting seat; 2. Connecting groove; 3. Protruding rack; 4. Clamping claw; 5. Fixing hole; 6. Connecting hole; 7. Locking screw; 41. Clamping part; 42. Avoidance groove; 43. Connecting platform. DETAILED DESCRIPTION

[0014] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0015] Example

[0016] like Figure 1 and Figure 2As shown, the numerical lathe processing device provided in this embodiment is mainly suitable for the processing of low guide blades. The numerical lathe processing device includes three claw connecting seats 1. A connecting groove 2 matching the three-jaw chuck is opened on one side of each claw connecting seat 1. A convex rack 3 matching the three-jaw chuck is provided on both sides of the connecting groove 2. A clamping claw 4 is fixedly connected to the side of each claw connecting seat 1 away from the connecting groove 2. The cross-section of the clamping claw 4 is a right-angled triangle, in which the right-angled short side of the clamping claw 4 is connected to the claw. The surface of the seat 1 is matched with each other and is placed on the clamping jaw connecting seat 1. The top and bottom of the right-angled long side of the clamping jaw 4 extend outward to form a clamping portion 41. The inner clamping surface of the clamping portion 41 is an arc surface. The cross-section enclosed by the inner side surfaces of the three clamping portions 41 located at the top of the three clamping jaws 4 is circular. The cross-section enclosed by the inner side surfaces of the three clamping portions 41 located at the bottom of the three clamping jaws 4 is circular, so that the long axis end of the part is clamped by the top of the three clamping jaws 4, and the short axis end of the part is clamped by the bottom of the three clamping jaws 4.

[0017] An avoidance groove 42 is formed between the two clamping parts 41 of the same clamping jaw 4, which is used to avoid the blade part of the processed part;

[0018] The middle part of the oblique side of the clamping jaw 4 extends horizontally outward to be flush with the side wall of the clamping jaw connecting seat 1 to form a connecting platform 43, and fixing holes 5 are respectively opened at the top of the side of the clamping jaw 4 away from the avoidance groove 42 and the connecting platform 43. The fixing hole 5 passes through the clamping jaw 4 and is a countersunk hole. A connecting hole 6 is opened on the clamping jaw connecting seat 1 at a position corresponding to the fixing hole 5, and a locking screw 7 that cooperates with the connecting hole 6 is provided in the fixing hole 5; the three clamping jaws 4 are fixed to the three clamping jaw connecting seats 1 respectively through the locking screw 7.

[0019] When in use, first fix the clamping jaws 4 on the jaw connecting seat 1, and then clamp the three jaw connecting seat 1 with the three-jaw chuck of the machine tool. After clamping, the short axis end of the part is clamped in the bottom clamping part 41 of the three clamping jaws 4, and the long axis end of the part is clamped in the top clamping part 41 of the three clamping jaws 4. After clamping is completed, processing can be carried out; the center of the long axis end of the part to be processed is processed with a center hole, which is fixed by the tail center of the machine tool, and the three jaw connecting seats 1 and the three-jaw chuck are loosened, and then the alignment is checked by the dial indicator. If there is a deviation in the center, alignment is carried out. After alignment, the jaw connecting seat 1 is fixed to the three-jaw chuck. If there is no deviation in the center, the jaw connecting seat 1 is directly fixed to the three-jaw chuck, that is, the long axis end of the processed part is fixed, and processing is continued, thereby ensuring that the long axis and short axis meet the requirements of concentric processing.

[0020] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any modification and replacement based on the technical solution and inventive concept provided by the present invention should be included in the protection scope of the present invention.

Claims

1. A lathe processing device, characterized in that: The invention comprises three claw connection seats (1), one side of each claw connection seat (1) is provided with a connection groove (2) matching with the three-jaw chuck, and both sides of the connection groove (2) are provided with convex racks (3) matching with the three-jaw chuck, and each of the claw connection seats (1) is fixedly connected with a clamping claw (4) on the side away from the connection groove (2), the bottom surface of the clamping claw (4) is matched with the surface of the claw connection seat (1), and the top and bottom of one side of the clamping claw (4) extend outward to form a clamping portion (41 ), an avoidance groove (42) is formed between the two clamping parts (41), the middle part of the other side of the clamping claw (4) extends horizontally outward to be flush with the side wall of the clamping claw connecting seat (1) to form a connecting platform (43), and a fixing hole (5) is respectively opened at the top of the side of the clamping claw (4) away from the avoidance groove (42) and the connecting platform (43), and a connecting hole (6) is opened on the clamping claw connecting seat (1) at a position corresponding to the fixing hole (5), and a locking screw (7) that cooperates with the connecting hole (6) is provided in the fixing hole (5).

2. A lathe processing device according to claim 1, characterized in that: The inner clamping surface of the clamping portion (41) is an arc surface, and the inner side surfaces of the clamping portion (41) at the top and bottom of the three clamping claws (4) are all circular.

3. A lathe processing device according to claim 1 or 2, characterized in that: The cross section of the clamping jaw (4) is a right triangle. One side of the right-angled short side of the clamping jaw (4) is placed on the clamping jaw connecting seat (1). The top and bottom of one side of the right-angled long side of the clamping jaw (4) extend outward to form a clamping portion (41). An avoidance groove (42) is formed between the two clamping portions (41). The middle part of one side of the oblique side of the clamping jaw (4) extends horizontally outward to be flush with the side wall of the clamping jaw connecting seat (1) to form a connecting platform (43).

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