Processing tool for the inner hole of a profiled part

Abstract

The utility model relates to the technical field of inner hole processing, specifically is a kind of processing frock of special-shaped part inner hole, including worktop, the lower surface of worktop is fixedly connected with controller, the lower surface of worktop is fixedly connected with installation box, the outer surface of installation box is rotatably connected with screw rod, the outer surface of screw rod is threadedly connected with screw rod nut, the upper surface of screw rod nut is provided with clamping mechanism, in the utility model, contact block and plug rod are connected by the way of plug-in, so that the combination between contact block is more flexible and various, can be quickly adjusted and combined according to the shape and size of different workpieces, the clamping structure of adapting workpiece is conveniently and quickly built, drive screw rod rotates, the rotation of screw rod makes screw rod nut move along the direction of screw rod, and then drive clamping mechanism to quickly clamp workpiece or loosen workpiece, greatly improve the efficiency of workpiece clamping, meet the demand of quick processing.

Description

Technical Field

[0001] This utility model relates to the field of internal hole processing technology, specifically a processing fixture for the internal holes of irregularly shaped parts. Background Technology

[0002] The machining fixture for the inner hole of irregularly shaped parts is an essential device in the machining of irregularly shaped workpieces. In the process of machining irregularly shaped workpieces, it is necessary to use this device to drill holes in the workpiece. Refer to the drilling machine for irregularly shaped workpieces described in announcement number CN217912926U, which includes a support body, an electrical box installed on the front of the support body, an electric rod installed inside the support body, a hydraulic rod installed on the back of the support body, a first bearing installed on the outside of the hydraulic rod, and a second bearing installed at the bottom of the first bearing.

[0003] Although the above-mentioned device can perform drilling, the clamping mechanism has a relatively fixed shape and is an integrated structure, which cannot be adjusted appropriately according to the shape of the workpiece, resulting in a reduction in its applicable force. Utility Model Content

[0004] The purpose of this utility model is to provide a machining fixture for the inner hole of irregularly shaped parts, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A machining fixture for the inner hole of an irregularly shaped part includes a worktable, a controller fixedly connected to the lower surface of the worktable, and a mounting box fixedly connected to the lower surface of the worktable.

[0007] A lead screw is rotatably connected to the outer surface of the mounting box, and a lead screw nut is threaded onto the outer surface of the lead screw. A clamping mechanism is provided on the upper surface of the lead screw nut. The clamping mechanism includes a mounting plate and a contact block. The mounting plate is fixedly connected to the upper surface of the lead screw nut, and an insert rod is fixedly connected to the upper surface of the mounting plate. The contact block is nested and connected to the outer surface of the insert rod, and a connecting rod is fixedly connected to the upper surface of the contact block. A mounting bracket is fixedly connected to the upper surface of the worktable.

[0008] Furthermore, the upper surface of the worktable is provided with a through groove, the lead screw nut is slidably connected to the through groove, and the mounting bracket and the worktable are fixedly connected by a threaded assembly.

[0009] Furthermore, a drilling mechanism is fixedly connected to the upper surface of the mounting frame. The drilling mechanism includes a hydraulic push rod, a limiting rod, a seated bearing, a sliding plate, and a drilling machine. The hydraulic push rod is fixedly connected to the upper surface of the mounting frame, and a fixed plate is fixedly connected to the output end of the hydraulic push rod. The limiting rod is fixedly connected to the upper surface of the fixed plate, and the seated bearing is fixedly connected to the lower surface of the fixed plate. A slide rail is fixedly connected to the inner ring of the seated bearing. The sliding plate is embedded and slidably connected to the inner surface of the slide rail. The drilling machine is embedded and connected to the lower surface of the sliding plate. A fastening knob is fixedly connected to the upper surface of the slide rail.

[0010] Furthermore, the lower surface of the workbench is fixedly connected to a support leg.

[0011] Furthermore, a stepper motor is fixedly connected to the lower surface of the mounting box, a rotating shaft is rotatably connected to the lower surface of the worktable, a first bevel gear is fixedly connected to one end of the rotating shaft, a second bevel gear is fixedly connected to one end of the lead screw, the first bevel gear and the second bevel gear are meshed together, and a bellows is fixedly connected to the outer surface of the lead screw nut.

[0012] Furthermore, the contact block and the plug rod are provided with corresponding insertion holes, and there are several contact blocks, which are connected to each other by plug rods.

[0013] Furthermore, the limiting rod passes through the mounting frame, and the limiting rod and the mounting frame are slidably connected.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The rotating shaft drives the first bevel gear to rotate, and the second bevel gear meshing with it rotates accordingly, thereby driving the lead screw to rotate. The rotation of the lead screw causes the lead screw nut to move along the direction of the lead screw, which in turn drives the clamping mechanism to quickly clamp or release the workpiece, greatly improving the efficiency of workpiece clamping and meeting the needs of rapid processing. The bellows can effectively prevent dust and other impurities from entering the threaded connection between the lead screw nut and the lead screw, extending its service life.

[0016] 2. The contact blocks and insert rods are connected by insert holes, which makes the combination of contact blocks more flexible and diverse. They can be quickly adjusted and combined according to the shape and size of different workpieces, and can easily and quickly build a clamping structure that fits the workpiece, further improving the workpiece clamping efficiency and the versatility and practicality of the entire machining fixture. Attached Figure Description

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

[0018] Figure 2This is a schematic diagram of the structure of this utility model from another angle;

[0019] Figure 3 This is a schematic diagram of the rotating shaft connection structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the drilling mechanism of this utility model.

[0021] In the diagram: 1. Worktable; 101. Through slot; 102. Support leg; 2. Controller; 3. Mounting box; 301. Stepper motor; 302. Rotating shaft; 303. First bevel gear; 304. Lead screw; 305. Second bevel gear; 306. Lead screw nut; 307. Bellows; 4. Clamping mechanism; 401. Mounting plate; 402. Insert rod; 403. Contact block; 404. Connecting rod; 5. Mounting bracket; 6. Drilling mechanism; 601. Hydraulic push rod; 602. Fixing plate; 603. Limiting rod; 604. Bearing with seat; 605. Slide rail; 606. Fastening knob; 607. Sliding plate; 608. Drilling rig. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 In this embodiment of the utility model, a machining fixture for the inner hole of an irregular part includes a worktable 1, a controller 2 fixedly connected to the lower surface of the worktable 1, and an installation box 3 fixedly connected to the lower surface of the worktable 1.

[0024] A lead screw 304 is rotatably connected to the outer surface of the mounting box 3. A lead screw nut 306 is threadedly connected to the outer surface of the lead screw 304. A clamping mechanism 4 is provided on the upper surface of the lead screw nut 306. The clamping mechanism 4 includes a mounting plate 401 and a contact block 403. The mounting plate 401 is fixedly connected to the upper surface of the lead screw nut 306. An insert rod 402 is fixedly connected to the upper surface of the mounting plate 401. The contact block 403 is nested and connected to the outer surface of the insert rod 402. A connecting rod 404 is fixedly connected to the upper surface of the contact block 403. A mounting bracket 5 is fixedly connected to the upper surface of the worktable 1.

[0025] Specifically, during use, the workpiece to be machined into an inner hole is placed on the upper surface of the worktable 1, and then the workpiece is clamped by the clamping mechanism 4. There are multiple contact blocks 403, and adjacent contact blocks 403 are connected by insert rods 402. One side of the contact block 403 is arc-shaped, and the other side is V-shaped. The workpiece can be clamped by the V-shape. The workpiece can also be nested on the outer surface of the four sets of contact blocks 403. The arc surface contacts the inner surface of the workpiece, providing internal support for the workpiece, making the connection between the workpiece and the worktable 1 tighter, which facilitates subsequent drilling operations.

[0026] Example 1

[0027] like Figure 1-4 As shown, a through groove 101 is provided on the upper surface of the worktable 1. The lead screw nut 306 is slidably connected to the through groove 101, and the mounting bracket 5 and the worktable 1 are fixedly connected by a threaded assembly.

[0028] In this embodiment, by setting a sliding connection structure between the through groove 101 and the lead screw nut 306, the lead screw nut 306 can slide stably along the through groove 101. The rotation of the lead screw 304 provides power for the movement of the lead screw nut 306, thereby driving the clamping mechanism 4 to adjust its position on the worktable 1, so as to better adapt to workpieces of different sizes and shapes for clamping. The threaded assembly connection between the mounting bracket 5 and the worktable 1 not only ensures the installation firmness of the mounting bracket 5, but also facilitates its disassembly and installation, and facilitates the maintenance and replacement of the drilling mechanism 6.

[0029] like Figure 1-4 As shown, a drilling mechanism 6 is fixedly connected to the upper surface of the mounting frame 5. The drilling mechanism 6 includes a hydraulic push rod 601, a limiting rod 603, a seated bearing 604, a sliding plate 607, and a drill 608. The hydraulic push rod 601 is fixedly connected to the upper surface of the mounting frame 5. A fixing plate 602 is fixedly connected to the output end of the hydraulic push rod 601. The limiting rod 603 is fixedly connected to the upper surface of the fixing plate 602. The seated bearing 604 is fixedly connected to the lower surface of the fixing plate 602. A slide rail 605 is fixedly connected to the inner ring of the seated bearing 604. The sliding plate 607 is embedded and slidably connected to the inner surface of the slide rail 605. The drill 608 is embedded and connected to the lower surface of the sliding plate 607. A fastening knob 606 is fixedly connected to the upper surface of the slide rail 605. The limiting rod 603 passes through the mounting frame 5 and is slidably connected to the mounting frame 5.

[0030] In this embodiment, the drilling mechanism 6 drives the fixed plate 602 to move downward through the hydraulic push rod 601, thereby driving the drill 608 to approach the workpiece for drilling. The limiting rod 603 can guide the downward movement of the fixed plate 602 to prevent it from deviating and damaging the workpiece. The cooperation between the slide rail 605 and the sliding plate 607 allows the drill 608 to be adjusted to an appropriate position on the slide rail 605 and fixed by the fastening knob 606, thereby enabling flexible processing of inner holes at different positions and improving the flexibility and accuracy of drilling.

[0031] Example 2

[0032] Based on Embodiment 1, in order to overcome the problem of inconvenience in quickly clamping the workpiece in Embodiment 1.

[0033] like Figure 1-4 As shown, a support leg 102 is fixedly connected to the lower surface of the worktable 1, a stepper motor 301 is fixedly connected to the lower surface of the mounting box 3, a rotating shaft 302 is rotatably connected to the lower surface of the worktable 1, a first bevel gear 303 is fixedly connected to one end of the rotating shaft 302, a second bevel gear 305 is fixedly connected to one end of the lead screw 304, the first bevel gear 303 and the second bevel gear 305 are meshed together, and a bellows 307 is fixedly connected to the outer surface of the lead screw nut 306.

[0034] In this embodiment, the stepper motor 301 drives the rotating shaft 302 to rotate, which in turn drives the first bevel gear 303 to rotate. The second bevel gear 305, which meshes with the first bevel gear 303, rotates accordingly, thereby driving the lead screw 304 to rotate. The rotation of the lead screw 304 causes the lead screw nut 306 to move along the direction of the lead screw 304, which in turn drives the clamping mechanism 4 to quickly clamp or release the workpiece, greatly improving the efficiency of workpiece clamping and meeting the needs of rapid processing. The bellows 307 effectively prevents dust and other impurities from entering the threaded connection between the lead screw nut 306 and the lead screw 304, extending their service life.

[0035] like Figure 1-4 As shown, the contact block 403 and the plug rod 402 are provided with corresponding insertion holes. There are several contact blocks 403, and adjacent contact blocks 403 are connected by plug rods 402.

[0036] In this embodiment, the contact block 403 and the insertion rod 402 are connected by insertion holes, which makes the combination of the contact block 403 more flexible and diverse. It can be quickly adjusted and combined according to the shape and size of different workpieces, and can easily and quickly build a clamping structure that fits the workpiece, further improving the workpiece clamping efficiency and the versatility and practicality of the entire machining fixture.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A machining fixture for the inner hole of an irregular part, comprising a worktable (1), wherein a controller (2) is fixedly connected to the lower surface of the worktable (1), and a mounting box (3) is fixedly connected to the lower surface of the worktable (1). Its features are: A lead screw (304) is rotatably connected to the outer surface of the mounting box (3), and a lead screw nut (306) is threadedly connected to the outer surface of the lead screw (304). A clamping mechanism (4) is provided on the upper surface of the lead screw nut (306), and the clamping mechanism (4) includes: Mounting plate (401) is fixedly connected to the upper surface of screw nut (306), and a plug rod (402) is fixedly connected to the upper surface of mounting plate (401). A contact block (403) is nested on the outer surface of the insert rod (402). A connecting rod (404) is fixedly connected to the upper surface of the contact block (403), and a mounting bracket (5) is fixedly connected to the upper surface of the worktable (1).

2. The machining fixture for the inner hole of an irregularly shaped part according to claim 1, characterized in that, The upper surface of the worktable (1) is provided with a through groove (101), the lead screw nut (306) and the through groove (101) are slidably connected, and the mounting bracket (5) and the worktable (1) are fixedly connected by a threaded assembly.

3. The machining fixture for the inner hole of an irregularly shaped part according to claim 1 or 2, characterized in that, A drilling mechanism (6) is fixedly connected to the upper surface of the mounting bracket (5), and the drilling mechanism (6) includes: A hydraulic push rod (601) is fixedly connected to the upper surface of the mounting bracket (5), and a fixing plate (602) is fixedly connected to the output end of the hydraulic push rod (601). The limiting rod (603) is fixedly connected to the upper surface of the fixing plate (602); A seated bearing (604) is fixedly connected to the lower surface of a fixed plate (602). The inner ring of the seated bearing (604) is fixedly connected to a slide rail (605), and a fastening knob (606) is fixedly connected to the upper surface of the slide rail (605). A sliding plate (607) is embedded and slidably connected to the inner surface of a slide rail (605); The drilling rig (608) is embedded in the lower surface of the sliding plate (607).

4. The machining fixture for the inner hole of an irregularly shaped part according to claim 1, characterized in that, The lower surface of the workbench (1) is fixedly connected to a support leg (102).

5. The machining fixture for the inner hole of an irregularly shaped part according to claim 1, characterized in that, A stepper motor (301) is fixedly connected to the lower surface of the mounting box (3), and a rotating shaft (302) is rotatably connected to the lower surface of the worktable (1). A first bevel gear (303) is fixedly connected to one end of the rotating shaft (302), and a second bevel gear (305) is fixedly connected to one end of the lead screw (304). The first bevel gear (303) and the second bevel gear (305) are meshed together, and a bellows (307) is fixedly connected to the outer surface of the lead screw nut (306).

6. The machining fixture for the inner hole of an irregularly shaped part according to claim 1, characterized in that, The contact block (403) and the plug rod (402) are provided with corresponding insertion holes. There are several contact blocks (403), and adjacent contact blocks (403) are connected by plug rods (402).

7. The machining fixture for the inner hole of an irregularly shaped part according to claim 3, characterized in that, The limiting rod (603) passes through the mounting frame (5), and the limiting rod (603) and the mounting frame (5) are slidably connected.

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