Fixture of numerical control boring machine

Abstract

The utility model discloses a clamp of a numerical control boring machine, which comprises a bottom plate, a moving part and a clamping part, the moving part is arranged at the top of the bottom plate, the moving part is provided with a base arranged at the top of the bottom plate, the clamping part is arranged at the top of the moving part, and the clamping part is provided with a moving frame transversely and slidably arranged at the top of the base. A lifting frame is vertically and slidably arranged at the top of the moving frame, a threaded rod is vertically and rotatably arranged in the moving frame, the threaded rod penetrates through the lifting frame and is in nested threaded connection with the lifting frame, and the threaded rod rotates to drive the lifting frame to move up and down. By arranging the moving part and the clamping part, the clamp can adjust the clamping height in the vertical direction according to different workpieces through the transverse movement of the moving frame and the longitudinal movement of the lifting frame, the clamping position is convenient to adjust, and the machining precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of CNC boring machine technology, specifically a fixture for a CNC boring machine. Background Technology

[0002] A boring machine is a machine tool that mainly uses a boring bar to bore pre-drilled holes in a workpiece. Typically, the rotation of the boring bar is the main motion, and the movement of the boring bar or workpiece is the feed motion. A CNC boring machine is a machine tool that uses computer numerical control technology for precision boring. It is mainly used to process high-precision holes on large and medium-sized workpieces. Compared with traditional boring machines, CNC boring machines have the characteristics of high automation, stable machining accuracy, and high efficiency.

[0003] When using CNC boring machines, existing CNC boring machine fixtures can usually only move horizontally and cannot be raised or lowered vertically, which limits the processing range, makes it unable to adapt to workpieces of different heights, and reduces the processing efficiency of the boring machine. Utility Model Content

[0004] The purpose of this utility model is to provide a fixture for a CNC boring machine to solve the problem mentioned in the background art that, in the process of using a CNC boring machine, the existing CNC boring machine fixtures can usually only move horizontally and cannot be raised or lowered vertically, which results in a limited processing range, inability to adapt to workpieces of different heights, and reduced processing efficiency of the boring machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixture for a CNC boring machine, comprising a base plate, a moving part, and a clamping part:

[0006] The movable part is located on the top of the base plate. The movable part has a base located on the top of the base plate. The clamping part is located on the top of the movable part. The clamping part has a movable frame that is laterally slidably located on the top of the base. A lifting frame is vertically slidably located on the top of the movable frame. A threaded rod is vertically rotatably located inside the movable frame. The threaded rod passes through the lifting frame and is nested and threadedly connected to the lifting frame. The threaded rod rotates to drive the lifting frame to move up and down.

[0007] By adopting the above technical solution, the clamping height in the vertical direction can be adjusted according to different workpieces through the lateral movement of the moving frame and the longitudinal movement of the lifting frame, which facilitates the adjustment of the clamping position and improves the machining accuracy.

[0008] Preferably, there are two clamping parts, and the two clamping parts are mirror images of each other on the top of the base.

[0009] By adopting the above technical solution, a symmetrical clamping structure can be formed by two movable frames, so that the workpiece is subjected to uniform force and deformation or displacement caused by unilateral force during processing can be avoided.

[0010] Preferably, the movable part also has an adjustment shaft that is laterally rotatably disposed inside the base. The adjustment shaft passes laterally through the two movable frames and is nested and threadedly connected to the movable frames. A motor a is disposed on the side of the base, and the output end of the motor a is connected to the adjustment shaft.

[0011] By adopting the above technical solution, the adjustment shaft can be driven to rotate by motor a, which in turn drives the two moving frames to move synchronously in opposite directions, thereby achieving symmetrical adjustment of the workpiece and improving processing stability.

[0012] Preferably, the movable part also has a drive shaft rotatably disposed on the top of the base, and two drive shafts are provided. A power shaft is rotatably disposed on the top of the base and is meshed with the two drive shafts. A motor b is disposed on the side of the base, and the output end of the motor b is connected to the power shaft.

[0013] By adopting the above technical solution, the power shaft can be driven to rotate by motor b, which in turn drives the two transmission shafts to rotate synchronously, ensuring that the lifting and lowering actions of the clamping part are coordinated and consistent.

[0014] Preferably, the moving part also has a bevel tooth a disposed at one end of the drive shaft, and two bevel teeth b disposed on the side of the power shaft, the bevel teeth b meshing with the bevel tooth a.

[0015] By adopting the above technical solution, efficient power transmission between the power shaft and the transmission shaft can be achieved by using bevel gear a and bevel gear b, thereby reducing energy loss.

[0016] Preferably, the clamping part also has a bevel tooth c rotatably disposed inside the movable frame, the bevel tooth c having a hexagonal groove inside, and a hexagonal prism disposed on the drive shaft, the drive shaft passing laterally through the bevel tooth c and slidingly connected to the bevel tooth c.

[0017] By adopting the above technical solution, the hexagonal prism and hexagonal slot can be used to allow the drive shaft to rotate while the bevel gear c rotates, and the moving frame can slide laterally along the drive shaft, thus achieving flexible adjustment of the clamping position.

[0018] Preferably, the clamping part also has a bevel tooth d at the bottom of the threaded rod, which meshes with a bevel tooth c.

[0019] By adopting the above technical solution, the meshing transmission of bevel teeth c and d can be used to convert horizontal rotational motion into vertical lifting motion, drive the threaded rod to rotate, and thus control the up and down movement of the lifting frame.

[0020] Preferably, there are two bevel teeth d, and the two bevel teeth d are nested and threadedly connected to the same lifting frame.

[0021] By adopting the above technical solution, the lifting process of the lifting frame can be made smoother and the clamping stability can be improved by using the driving force of the double threaded rod.

[0022] Compared with the prior art, the beneficial effects of this utility model are: by providing a moving part and a clamping part, the clamping height in the vertical direction can be adjusted according to different workpieces by the lateral movement of the moving frame and the longitudinal movement of the lifting frame, which facilitates the adjustment of the clamping position and improves the processing accuracy. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this application;

[0025] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this application;

[0026] Figure 4 This is a schematic diagram of the overall cross-sectional structure of this application;

[0027] Figure 5 This is a cross-sectional structural diagram of the clamping part of this application.

[0028] In the diagram: 1. Base plate; 2. Moving part; 201. Base; 202. Adjusting shaft; 203. Motor a; 204. Transmission shaft; 205. Bevel gear a; 206. Power shaft; 207. Bevel gear b; 208. Motor b; 3. Clamping part; 301. Moving frame; 302. Lifting frame; 303. Bevel gear c; 304. Threaded rod; 305. Bevel gear d. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0030] Example 1

[0031] Please see Figure 1 , Figure 2 and Figure 3 This embodiment provides a technical solution: a fixture for a CNC boring machine, comprising a base plate 1, a moving part 2, and a clamping part 3.

[0032] The movable part 2 is located on the top of the base plate 1. The movable part 2 has a base 201 located on the top of the base plate 1. The clamping part 3 is located on the top of the movable part 2. The clamping part 3 has a movable frame 301 that is laterally slidably located on the top of the base 201. A lifting frame 302 is vertically slidably located on the top of the movable frame 301. A threaded rod 304 is vertically rotatably located inside the movable frame 301. The threaded rod 304 passes through the lifting frame 302 and is nested and threadedly connected to the lifting frame 302. The rotation of the threaded rod 304 drives the lifting frame 302 to move up and down. By the lateral movement of the movable frame 301 and the longitudinal movement of the lifting frame 302, the clamping height in the vertical direction can be adjusted according to different workpieces, which facilitates the adjustment of the clamping position and improves the machining accuracy.

[0033] Example 2

[0034] Please see Figure 3 , Figure 4 and Figure 5 This embodiment provides a technical solution: a fixture for a CNC boring machine, comprising a moving part 2, a transmission shaft 204, and a power shaft 206.

[0035] There are two clamping parts 3, which are mirror images of each other on the top of the base 201. The two movable frames 301 can form a symmetrical clamping structure, so that the workpiece is subjected to uniform force and avoids deformation or displacement caused by unilateral force during processing.

[0036] An adjustment shaft 202 is rotatably mounted inside the base 201. The adjustment shaft 202 is a bidirectional lead screw, a special type of lead screw structure whose core feature is the ability to achieve two opposite movements on the same lead screw. This is existing technology and will not be elaborated further below. The adjustment shaft 202 passes laterally through the two moving frames 301 and is nested and threadedly connected to the moving frames 301. A motor a203 is mounted on the side of the base 201. The output end of the motor a203 is connected to the adjustment shaft 202. The motor a203 can drive the adjustment shaft 202 to rotate, thereby causing the two moving frames 301 to move synchronously in opposite directions, achieving symmetrical adjustment of the workpiece and improving processing stability.

[0037] A drive shaft 204 is rotatably mounted on the top of the base 201. There are two drive shafts 204. A power shaft 206 is rotatably mounted on the top of the base 201. The power shaft 206 is meshed with the two drive shafts 204. A motor b208 is mounted on the side of the base 201. The output end of the motor b208 is connected to the power shaft 206. The motor b208 can drive the power shaft 206 to rotate, thereby driving the two drive shafts 204 to rotate synchronously, ensuring that the lifting and lowering actions of the clamping part 3 are coordinated and consistent.

[0038] A bevel tooth a205 is integrally provided at one end of the drive shaft 204, and two bevel teeth b207 are provided on the side of the power shaft 206. The bevel teeth b207 mesh with the bevel teeth a205, and the transmission between the power shaft 206 and the drive shaft 204 can be achieved by utilizing the transmission of the bevel teeth a205 and b207, thereby reducing energy loss.

[0039] Example 3

[0040] Please see Figure 3 , Figure 4 and Figure 5 This embodiment provides a technical solution: a fixture for a CNC boring machine, including a clamping part 3, a moving frame 301, and a lifting frame 302.

[0041] Inside the movable frame 301, a bevel gear c303 is rotatably arranged. The bevel gear c303 has a hexagonal groove inside. A hexagonal prism is arranged on the drive shaft 204. The drive shaft 204 passes laterally through the bevel gear c303 and is slidably connected to the bevel gear c303. Through the cooperation of the hexagonal prism and the hexagonal groove, the drive shaft 204 can drive the bevel gear c303 to rotate while allowing the movable frame 301 to slide laterally along the drive shaft 204, so as to realize flexible adjustment of the clamping position.

[0042] The clamping part 3 also has a bevel tooth d305 at the bottom of the threaded rod 304. The bevel tooth d305 is meshed with the bevel tooth c303. The meshing transmission between the bevel tooth c303 and the bevel tooth d305 can convert the horizontal rotational motion into a vertical lifting motion, drive the threaded rod 304 to rotate, and thus control the up and down movement of the lifting frame 302.

[0043] There are two bevel teeth d305, and the two bevel teeth d305 are nested and threadedly connected to the same lifting frame 302. The lifting process of the lifting frame 302 can be made smoother and the clamping stability can be improved by the driving force of the double threaded rod 304.

[0044] Working Principle: First, power on the device and place the workpiece between the two lifting frames 302. Start motor a203 to drive the adjusting shaft 202 to rotate, causing the two moving frames 301 to move synchronously towards each other along the base 201 until the workpiece is initially clamped. Then, start motor b208 to drive the power shaft 206 to rotate. Through the meshing of bevel gear b207 and bevel gear a205, the two transmission shafts 204 rotate synchronously. The transmission shaft 204, through the engagement of the hexagonal prism and the hexagonal groove of bevel gear c303, drives the bevel gear c303 to rotate. Then, through the meshing of bevel gear c303 and bevel gear d305, the threaded rod 304 rotates, causing the lifting frame 302 to move vertically, achieving precise clamping and positioning of the workpiece. During processing, the double threaded rod 304 structure ensures a uniform distribution of clamping force, effectively preventing workpiece displacement or vibration during processing and ensuring processing accuracy. After processing, the workpiece can be released by reversing the operation.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for a CNC boring machine, characterized in that, include: Base plate; A movable part is provided on the top of the base plate, and the movable part has a base provided on the top of the base plate; The clamping part is located on the top of the moving part. The clamping part has a moving frame that is laterally slidably located on the top of the base. A lifting frame is vertically slidably located on the top of the moving frame. A threaded rod is vertically rotatably located inside the moving frame. The threaded rod passes through the lifting frame and is nested and threadedly connected to the lifting frame. The threaded rod rotates to drive the lifting frame to move up and down.

2. The fixture for a CNC boring machine according to claim 1, characterized in that: There are two clamping parts, and the two clamping parts are mirror images of each other on the top of the base.

3. The fixture for a CNC boring machine according to claim 2, characterized in that: The movable part also has an adjustment shaft that is laterally rotatably disposed inside the base. The adjustment shaft passes laterally through the two movable frames and is nested and threadedly connected to the movable frames. A motor a is disposed on the side of the base, and the output end of the motor a is connected to the adjustment shaft.

4. The fixture for a CNC boring machine according to claim 1, characterized in that: The moving part also has a drive shaft rotatably mounted on the top of the base. There are two drive shafts. A power shaft is rotatably mounted on the top of the base. The power shaft is meshed with the two drive shafts. A motor b is mounted on the side of the base. The output end of the motor b is connected to the power shaft.

5. The fixture for a CNC boring machine according to claim 4, characterized in that: The moving part also has a bevel tooth a at one end of the drive shaft, and two bevel teeth b are provided on the side of the power shaft, which mesh with bevel tooth a.

6. The fixture for a CNC boring machine according to claim 5, characterized in that: The clamping part also has a bevel tooth c rotatably disposed inside the movable frame. The bevel tooth c has a hexagonal groove inside. The drive shaft is provided with a hexagonal prism. The drive shaft passes laterally through the bevel tooth c and is slidably connected to the bevel tooth c.

7. The fixture for a CNC boring machine according to claim 1, characterized in that: The clamping part also has a bevel tooth d at the bottom of the threaded rod, which meshes with a bevel tooth c.

8. The fixture for a CNC boring machine according to claim 7, characterized in that: There are two bevel teeth d, and both bevel teeth d are nested and threadedly connected to the same lifting frame.

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