Numerical control boring machine

Abstract

The utility model relates to the technical field of machine tools, in particular to a numerical control boring machine, and aims to solve the technical problems that when an existing boring machine faces inclined plane holes of different parts and different angles, corresponding clamps need to be machined every time, and production efficiency is reduced. The lower end of the cutter bar displacement mechanism is rotationally connected with an adjusting shaft, the adjusting shaft is connected with a supporting lug, the adjusting shaft is connected with a numerical control self-locking power, the numerical control self-locking power is connected to a cutter support, and the lower portion of the supporting lug is connected with a cutter through a rotating clamp. The angle of the lower rotating clamp and the cutter can be freely adjusted within a limited angle, the cutter is accurately driven to rotate by a specified angle through a worm gear and a worm by controlling the number of turns of rotation of the servo motor and then locked, and a cutter bar displacement mechanism is matched after cutter power is started, so that inclined plane holes at any angle can be bored without a specific clamp.

Description

Technical Field

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

[0002] With the continuous development of the manufacturing industry, higher requirements are being placed on the machining accuracy, efficiency, automation level, and intelligence level of CNC boring machines. Currently, CNC boring machines are developing towards high speed, high precision, five-axis linkage, intelligence, and composite technology. High-speed machining technology can improve machining efficiency and shorten machining time; high-precision machining technology can meet the extremely high precision requirements of parts in aerospace, electronics, and other fields.

[0003] In existing boring machines, when boring inclined holes, a special tilting fixture is designed and used to clamp the workpiece so that the axis of the inclined hole is parallel to the axis of the boring machine spindle or at a specific machinable angle. However, when dealing with different parts and inclined holes of different angles, the corresponding fixture needs to be machined each time, which reduces production efficiency. Utility Model Content

[0004] This invention addresses the technical problem that existing boring machines require the processing of corresponding fixtures each time they face different parts and inclined holes at different angles, thus reducing production efficiency. In this way, a CNC boring machine is provided.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a CNC boring machine, comprising: a boring machine housing, a clamping grid plate connected to the bottom wall of the inner wall of the boring machine housing, a tool holder displacement mechanism connected to the top wall of the inner wall of the boring machine housing, a tool support connected to the lower part of the tool holder displacement mechanism, the tool holder displacement mechanism being able to drive the tool support displacement, an adjusting shaft rotatably connected to the lower end of the tool holder displacement mechanism, the adjusting shaft being connected to a support lug, the adjusting shaft being connected to a CNC self-locking power source, the CNC self-locking power source being connected to the tool support, and the lower part of the support lug being connected to the tool via a rotating clamp.

[0006] Preferably, the CNC self-locking power includes a worm gear, an adjusting shaft connected to the worm gear, the worm gear meshing with a worm, the worm being connected to the output shaft of a servo motor, and the servo motor being connected to the tool holder via a motor bracket.

[0007] Preferably, the fixture bracket is connected to the lugs, and a transmission chamber is provided inside the fixture bracket. The fixture bracket is connected to the tool motor through the motor bracket two. The output shaft of the tool motor is connected to the input shaft. The input shaft is rotatably connected to the side wall of the transmission chamber. The inner end of the input shaft is connected to the upper end of the internally threaded tube through a bevel gear set. The internally threaded tube is rotatably connected to the fixture bracket, and the lower end of the internally threaded tube is threaded with a tool.

[0008] Preferably, the rotating fixture includes a fixture support that is detachably assembled from two parts, with the assembly point located inside the transmission chamber.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] By adding an adjustment shaft and a support between the rotating fixture and the tool holder displacement mechanism, the lower rotating fixture and the tool can be freely adjusted within a limited angle. By controlling the number of rotations of the servo motor, the tool is precisely driven to rotate to a specified angle through the worm gear and locked. After the tool power is turned on, it works in conjunction with the tool holder displacement mechanism to bore beveled holes of any angle without the need for a specific fixture. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0012] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0013] Figure 3 This is a schematic cross-sectional view of the structure of this utility model.

[0014] In the diagram: 1. Boring machine housing; 2. Fixture grid plate; 3. Tool holder displacement mechanism; 4. Tool holder; 5. Adjustment shaft; 6. Support lug; 7. CNC self-locking power unit; 71. Worm gear; 72. Worm; 73. Servo motor; 74. Motor bracket one; 8. Rotating fixture; 81. Fixture bracket; 82. Transmission chamber; 83. Tool motor; 84. Motor bracket two; 85. Input shaft; 86. Bevel gear set; 87. Internal threaded pipe. Detailed Implementation

[0015] 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.

[0016] The rotary connection mentioned in this device refers to the axial fixation of the bearing by mounting the bearing on the shaft, with a spring retaining ring groove provided on the shaft or shaft hole, and the rotation achieved by locking the elastic retaining ring in the retaining ring groove; the hinge connection refers to the connection method that allows movement through connecting parts such as hinges, pins, and short shafts.

[0017] The present invention will now be described in detail with reference to the accompanying drawings.

[0018] The following is in conjunction with the appendix Figure 1-3This embodiment describes a CNC boring machine, including: a boring machine housing 1, a clamping grid plate 2 connected to the bottom inner wall of the boring machine housing 1, a tool holder displacement mechanism 3 connected to the top inner wall of the boring machine housing 1, a tool holder 4 connected to the lower part of the tool holder displacement mechanism 3, the tool holder displacement mechanism 3 being able to drive the tool holder 4 to move, an adjusting shaft 5 rotatably connected to the lower end of the tool holder displacement mechanism 3, the adjusting shaft 5 being connected to a lug 6, the adjusting shaft 5 being connected to a CNC self-locking power 7, the CNC self-locking power 7 being connected to the tool holder 4, and the lower part of the lug 6 being connected to the tool through a rotating clamp 8.

[0019] In use, the tool holder displacement mechanism 3 drives the tool support 4 and the tool to move along the XYZ directions. The rotating fixture 8 drives the tool to rotate and bore the inner hole of the lower workpiece, thus completing the boring. When facing a beveled hole, the CNC self-locking power 7 drives the adjusting shaft 5 to rotate by a specified angle. The adjusting shaft 5 drives the lug 6, the rotating fixture 8 and the tool to rotate by a specified angle, so that the tool and the beveled hole are concentrically set. Then, the CNC system controls the tool holder displacement mechanism 3 to make the tool rotate and move along the axis of the beveled hole, thus completing the beveled hole boring. Beveled holes of any angle can be bored without a specific fixture.

[0020] The CNC self-locking power unit 7 includes a worm gear 71, an adjusting shaft 5 connected to the worm gear 71, a worm gear 71 meshing with a worm 72, a worm 72 connected to the output shaft of a servo motor 73, and a servo motor 73 connected to a tool holder 4 via a motor bracket 74.

[0021] By controlling the servo motor 73 to rotate a specified number of revolutions, the servo motor 73 drives the worm gear 72 to rotate, the worm gear 72 drives the worm wheel 71 to rotate, and the worm wheel 71 drives the adjusting shaft 5 to rotate, precisely driving the lower tool to rotate a specified angle and then locking it.

[0022] The fixture bracket 81 is connected to the lug 6. The fixture bracket 81 has a transmission chamber 82 inside. The fixture bracket 81 is connected to the tool motor 83 through the motor bracket 84. The output shaft of the tool motor 83 is connected to the input shaft 85. The input shaft 85 is rotatably connected to the side wall of the transmission chamber 82. The inner end of the input shaft 85 is connected to the upper end of the internal threaded tube 87 through the bevel gear set 86. The internal threaded tube 87 is rotatably connected to the fixture bracket 81. The lower end of the internal threaded tube 87 is threaded with a tool.

[0023] The cutting tool is screwed into the internal threaded tube 87 by the thread. The cutting tool motor 83 is turned on, and the cutting tool motor 83 drives the input shaft 85 to rotate. The input shaft 85 drives the internal threaded tube 87 to rotate in the direction of screwing the cutting tool through the bevel gear set 86, thus performing boring.

[0024] The rotating clamp 8 includes a clamp support 81 which is composed of two detachable parts that are joined together, with the joint located inside the transmission chamber 82.

[0025] The detachable rotating clamp 8 facilitates maintenance.

[0026] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0028] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A numerically controlled boring machine comprising: The boring machine housing (1) has a clamping grid plate (2) connected to the bottom wall of the boring machine housing (1) and a tool holder displacement mechanism (3) connected to the top wall of the boring machine housing (1). The tool holder displacement mechanism (3) is connected to a tool support (4) at its lower part. The tool holder displacement mechanism (3) can drive the tool support (4) to move. The lower end of the tool holder displacement mechanism (3) is rotatably connected to an adjustment shaft (5). The adjustment shaft (5) is connected to a lug (6). The adjustment shaft (5) is connected to a CNC self-locking power source (7). The CNC self-locking power source (7) is connected to the tool support (4). The lower part of the lug (6) is connected to the tool through a rotating clamp (8).

2. The numerically controlled boring machine according to claim 1, characterized in that: The CNC self-locking power (7) includes a worm gear (71), an adjusting shaft (5) connected to the worm gear (71), the worm gear (71) meshing with the worm (72), the worm (72) connected to the output shaft of the servo motor (73), and the servo motor (73) connected to the tool holder (4) through a motor bracket (74).

3. The numerically controlled boring machine according to claim 1, characterized in that: The rotating fixture (8) includes a fixture bracket (81), which is connected to a lug (6). A transmission chamber (82) is provided inside the fixture bracket (81). The fixture bracket (81) is connected to a tool motor (83) through a motor bracket (84). The output shaft of the tool motor (83) is connected to an input shaft (85). The input shaft (85) is rotatably connected to the side wall of the transmission chamber (82). The inner end of the input shaft (85) is connected to the upper end of an internally threaded tube (87) through a bevel gear set (86). The internally threaded tube (87) is rotatably connected to the fixture bracket (81). A tool is threadedly connected to the lower end of the internally threaded tube (87).

4. The numerically controlled boring machine according to claim 3, characterized in that: The rotating clamp (8) includes a clamp support (81) which is composed of two detachable parts, with the joint located inside the transmission chamber (82).

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