Boring shaft feeding mechanism of numerical control milling and boring machine

Abstract

The utility model discloses a boring shaft feeding mechanism of a numerical control milling and boring machine, which belongs to the technical field of numerical control milling and boring machines, and comprises a box body, a movable seat arranged in the box body in a sliding manner, a boring shaft rotationally arranged in the movable seat, and one end of the boring shaft penetrating through the box body and extending towards the outer side, a driving assembly used in cooperation with a boring shaft is arranged in the box body, a wiping assembly used in cooperation with the boring shaft is arranged on one side of the box body, the wiping assembly is arranged, wiping cotton is utilized, a first electric sliding rail sliding base and a pushing frame are matched, the wiping cotton can be rapidly attached to the boring shaft, the wiping cotton is of a soft structure, and the wiping cotton is convenient to clean. The surface of the boring shaft can be uniformly wiped by utilizing the wiping cotton when the boring shaft moves into the box body, so that chippings can be effectively prevented from entering the box body along with the boring shaft, and the contact part of the boring shaft and the box body can be prevented from being excessively worn due to attachment of the chippings.

Description

Technical Field

[0001] This utility model belongs to the field of CNC milling and boring machine technology, and particularly relates to a boring spindle feed mechanism for a CNC milling and boring machine. Background Technology

[0002] A CNC milling and boring machine is a process testing instrument used in the field of mechanical engineering. It combines the functions of milling and boring and is mainly used to process holes and complex surfaces on workpieces. It can perform machining operations such as drilling, reaming, boring, and milling. The boring spindle feed mechanism is an important component of a CNC milling and boring machine, which changes the position of the boring spindle.

[0003] However, the existing CNC milling and boring machine's boring spindle feed mechanism does not have an auxiliary wiping structure for the boring spindle. As a result, when the boring spindle moves, it will directly carry external debris into the housing of the feed mechanism. During long-term operation, the debris that accumulates in the housing will affect the normal operation of the device. Furthermore, the debris attached to the boring spindle will cause wear at the contact point between the boring spindle and the housing when the boring spindle rotates. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a boring spindle feed mechanism for a CNC milling and boring machine, which solves the problem of not having an auxiliary wiping structure for the boring spindle.

[0005] This utility model is implemented as follows: a boring spindle feed mechanism for a CNC milling and boring machine includes a housing and a movable seat slidably disposed within the housing. A boring spindle is rotatably mounted within the movable seat, with one end of the boring spindle penetrating the housing and extending outward. A drive assembly for use with the boring spindle is disposed within the housing, and a wiping assembly for use with the boring spindle is disposed on one side of the housing.

[0006] As a preferred embodiment of this utility model, the wiping assembly includes a first electric slide rail fixed to one side of the top of the housing. Two sets of push frames are symmetrically fixed to the first electric slide rail along the front-back direction. The built-in threaded rod of the first electric slide rail is a positive and negative threaded rod. An arc-shaped clamping plate is fixed to one end of each set of push frames. An arc-shaped mounting plate is provided on the side of the arc-shaped clamping plate that is close to each other. A wiping cotton that is attached to the boring bar is provided on the side of the arc-shaped mounting plate that is close to each other. A positioning structure is provided on the arc-shaped clamping plate. The positioning structure is used to fix the arc-shaped mounting plate on the arc-shaped clamping plate.

[0007] In a preferred embodiment of this utility model, the positioning structure includes support plates fixed to the top and bottom of each set of arc-shaped mounting plates. Each set of support plates is equipped with a T-shaped positioning rod, and each set of T-shaped positioning rods is wound with a spring. The two ends of the spring are fixed to the protruding end of the T-shaped positioning rod and the support plate. Each set of arc-shaped mounting plates is equipped with insert plates at the top and bottom, and one end of the T-shaped positioning rod is inserted into the insert plate. The arc-shaped mounting plates are provided with grooves for inserting the insert plates, and the T-shaped positioning rods are used to lock the insert plates in the grooves.

[0008] As a preferred embodiment of the present invention, the driving assembly includes a second electric slide rail fixed symmetrically to the bottom of the inner cavity of the housing in the front-back direction, the bottom of the movable seat is fixed on the slide of the second electric slide rail, a motor is fixed to the bottom of one side of the movable seat, and a pulley capable of being driven by a belt is fixed to one end of the output shaft of the motor and one end of the boring shaft.

[0009] As a preferred embodiment of this utility model, multiple sets of locking blocks are sequentially fixed on the side of the arc-shaped mounting plate that is far apart from each other in the vertical direction, and the arc-shaped mounting plate is provided with a fixing channel for the locking blocks to engage.

[0010] As a preferred embodiment of this invention, the diameter of the lower pulley is greater than the diameter of the upper pulley.

[0011] As a preferred embodiment of this invention, the number of locking blocks on each set of the arc-shaped mounting plate is at least three sets.

[0012] As a preferred embodiment of this utility model, the ends of the T-shaped positioning rods that are close to each other are chamfered, and the rod part of the T-shaped positioning rod is a square rod structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention, by setting up a wiping component, utilizes wiping cotton, and works in conjunction with a first electric slide rail and a pusher frame, to quickly attach the wiping cotton to the boring bar. The wiping cotton is a soft structure and will not affect the normal left and right displacement of the boring bar. At this time, the wiping cotton can be used to evenly wipe the surface of the boring bar as it moves into the housing, which can effectively prevent debris from following the boring bar into the housing and prevent excessive wear at the contact point between the boring bar and the housing due to debris adhesion. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 yes Figure 1 Enlarged view of the structure at point A in the middle;

[0017] Figure 3This is a partial sectional view of the structure of this utility model;

[0018] Figure 4 This is a partial exploded view of the structure of this utility model.

[0019] In the picture:

[0020] 1. Housing; 2. Second electric slide rail; 3. Movable seat; 4. Boring shaft; 5. Motor; 6. Pulley; 7. First electric slide rail; 8. Push frame; 9. Arc-shaped clamping plate; 10. Arc-shaped mounting plate; 11. Wiping cotton; 12. Support plate; 13. Groove; 14. Insert plate; 15. T-shaped positioning rod; 16. Spring; 17. Clamping block; 18. Fixed track. Detailed Implementation

[0021] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0022] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] like Figures 1 to 4 As shown in the figure, the present invention provides a boring spindle feed mechanism for a CNC milling and boring machine, including a housing 1, a controller embedded on one side of the front of the housing 1, and a movable seat 3 slidably disposed in the housing 1. A boring spindle 4 is rotatably mounted in the movable seat 3, with one end of the boring spindle 4 penetrating through the housing 1 and extending outward. A drive assembly for use with the boring spindle 4 is disposed in the housing 1, and a wiping assembly for use with the boring spindle 4 is disposed on one side of the housing 1. By providing the wiping assembly, the surface of the boring spindle 4 can be wiped evenly when the boring spindle 4 moves into the housing 1, which can effectively prevent debris from entering the housing 1 along with the boring spindle 4, and can also prevent excessive wear at the contact point between the boring spindle 4 and the housing 1 due to debris adhesion.

[0024] As a preferred embodiment of this utility model, the wiping assembly includes a first electric slide rail 7 fixed to one side of the top of the housing 1. Two sets of pushers 8 are symmetrically fixed to the first electric slide rail 7 along the front-to-back direction. The built-in threaded rods of the first electric slide rail 7 are both positive and negative threaded rods. One end of each set of pushers 8 is fixed with an arc-shaped clamping plate 9. An arc-shaped mounting plate 10 is provided on the side of the arc-shaped clamping plates 9 that is close to each other. Wiping cotton 11, which is attached to the boring bar 4, is provided on the side of the arc-shaped mounting plates 10 that is close to each other. A positioning structure is provided on the arc-shaped clamping plate 9. The structure is used to fix the arc-shaped mounting plate 10 on the arc-shaped clamping plate 9. The design of the first electric slide rail 7 and the push frame 8 can change the position of the wiping cotton 11 so that the wiping cotton 11 can be quickly attached to the boring spindle 4 before it moves inward. This allows the wiping cotton 11 to wipe the surface of the boring spindle 4 evenly, effectively preventing debris from entering the housing 1 along with the boring spindle 4. It also prevents excessive wear at the contact point between the boring spindle 4 and the housing 1 due to debris adhesion. At the same time, the wiping cotton 11 is a soft structure and will not affect the normal left and right displacement of the boring spindle 4.

[0025] As a preferred embodiment of this utility model, the positioning structure includes support plates 12 fixed to the top and bottom of each set of arc-shaped mounting plates 9. Each set of support plates 12 is equipped with a T-shaped positioning rod 15, and each set of T-shaped positioning rods 15 is wound with a spring 16. The two ends of the spring 16 are fixed to the protruding ends of the T-shaped positioning rods 15 and the support plates 12. Each set of arc-shaped mounting plates 10 is equipped with insert plates 14 fixed to the top and bottom, and one end of the T-shaped positioning rod 15 is inserted into the insert plate 14. The arc-shaped mounting plates 9 are provided with grooves 13 for inserting the insert plates 14. The T-shaped positioning rods 15 are used to lock the insert plates 14 in the grooves 13. The positioning structure is designed so that the elastic rebound of the spring 16 can cause the T-shaped positioning rods 15 to be inserted into the insert plates 14, so that the arc-shaped mounting plates 10 and the wiping cotton 11 can be quickly fixed on the arc-shaped mounting plates 9. The snap-fit ​​design makes it easy to disassemble later, so as to facilitate the cleaning and replacement of the wiping cotton 11.

[0026] As a preferred embodiment of this utility model, the drive assembly includes a second electric slide rail 2 symmetrically fixed to the bottom of the inner cavity of the housing 1 in the front-back direction. The bottom of the movable seat 3 is fixed to the slide of the second electric slide rail 2. A motor 5 is fixed to the bottom of one side of the movable seat 3. The output shaft of the motor 5 and one end of the boring shaft 4 are both fixed with a pulley 6 that can be driven by a belt. The design of the second electric slide rail 2, the motor 5 and the pulley 6 makes it convenient for the user to move and rotate the boring shaft 4 in the left and right directions so as to use the boring shaft 4 to process the workpiece.

[0027] As a preferred embodiment of this utility model, multiple sets of locking blocks 17 are sequentially fixed along the vertical direction on the side of the arc-shaped mounting plate 10 that is far apart from each other. The arc-shaped mounting plate 9 is provided with a fixing channel 18 for the locking blocks 17 to engage. The design of the locking blocks 17 and the fixing channel 18 improves the stability of the arc-shaped mounting plate 9 and the arc-shaped mounting plate 10 during installation and avoids easy detachment.

[0028] As a preferred embodiment of this invention, the diameter of the lower pulley 6 is greater than that of the upper pulley 6. This design with different diameters is intended to increase the speed of the boring bar 4, thereby facilitating better processing of the workpiece.

[0029] As a preferred embodiment of this utility model, the number of locking blocks 17 on each set of arc-shaped mounting plates 10 is at least three sets. Limiting the number of locking blocks 17 is to improve the stability when the arc-shaped mounting plates 10 are connected to the arc-shaped locking plates 9.

[0030] As a preferred embodiment of this utility model, the ends of the T-shaped positioning rods 15 that are close to each other are chamfered. The chamfer design allows the T-shaped positioning rods 15 to be quickly inserted into the insert plate 14. The rod part of the T-shaped positioning rods 15 has a square rod structure to prevent the T-shaped positioning rods 15 from rotating and affecting the locking effect.

[0031] The working principle of this utility model:

[0032] refer to Figures 1 to 4 If the boring bar 4 needs to move inward, in order to prevent the boring bar 4 from carrying the attached debris generated by the workpiece into the housing 1, the user activates the first electric slide rail 7 through the controller. Since the first electric slide rail 7 has a forward and reverse threaded rod inside, it can drive the two sets of sliders on it to move in opposite directions, thereby driving the two sets of push frames 8 to move in opposite directions, and then driving the wiping cotton 11 in the arc-shaped clamping plate 9 to move in opposite directions until the wiping cotton 11 adheres to the boring bar. On shaft 4, and at this time the second electric slide rail 2 can drive the moving seat 3 to move, thereby driving the boring shaft 4 to move inward. At this time, the wiping cotton 11 wipes the attached debris on the boring shaft 4. Since the wiping cotton 11 is a soft structure, it will not affect the normal left and right displacement of the boring shaft 4. At this time, the uniform wiping of the surface of the boring shaft 4 by the wiping cotton 11 can effectively prevent debris from following the boring shaft 4 into the housing 1, and can also prevent the contact between the boring shaft 4 and the housing 1 from being excessively worn due to the attachment of debris.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] 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 boring spindle feed mechanism for a CNC milling and boring machine, comprising a housing (1), characterized in that: Also includes: A movable seat (3) is slidably disposed inside the housing (1). A boring bar (4) is rotatably mounted inside the movable seat (3), and one end of the boring bar (4) passes through the housing (1) and extends outward. A drive assembly that works with the boring bar (4) is disposed inside the housing (1). A wiping assembly that works with the boring bar (4) is disposed on one side of the housing (1).

2. The boring spindle feed mechanism of a CNC milling and boring machine as described in claim 1, characterized in that: The wiping assembly includes a first electric slide rail (7) fixed to one side of the top of the housing (1). Two sets of pushers (8) are symmetrically fixed on the first electric slide rail (7) along the front-back direction. The built-in threaded rod of the first electric slide rail (7) is a positive and negative threaded rod. An arc-shaped clamping plate (9) is fixed to one end of each set of pushers (8). An arc-shaped mounting plate (10) is provided on the side of the arc-shaped clamping plates (9) that are close to each other. A wiping cotton (11) that is attached to the boring bar (4) is provided on the side of the arc-shaped mounting plates (10) that are close to each other. A positioning structure is provided on the arc-shaped clamping plate (9). The positioning structure is used to fix the arc-shaped mounting plate (10) on the arc-shaped clamping plate (9).

3. The boring spindle feed mechanism of a CNC milling and boring machine as described in claim 2, characterized in that: The positioning structure includes support plates (12) fixed to the top and bottom of each set of arc-shaped clamping plates (9). Each set of support plates (12) is provided with a T-shaped positioning rod (15). Each set of T-shaped positioning rods (15) is wound with a spring (16). The two ends of the spring (16) are fixed to the protruding end of the T-shaped positioning rod (15) and the support plate (12). Each set of arc-shaped mounting plates (10) is fixed with a plate (14) at the top and bottom, and one end of the T-shaped positioning rod (15) is inserted into the plate (14). The arc-shaped clamping plate (9) is provided with a groove (13) for inserting the plate (14). The T-shaped positioning rod (15) is used to lock the plate (14) in the groove (13).

4. The boring spindle feed mechanism of a CNC milling and boring machine as described in claim 1, characterized in that: The drive assembly includes a second electric slide rail (2) symmetrically fixed at the bottom of the inner cavity of the housing (1) in the front-back direction. The bottom of the movable seat (3) is fixed on the slide of the second electric slide rail (2). A motor (5) is fixed at the bottom of one side of the movable seat (3). A pulley (6) capable of belt drive is fixed at one end of the output shaft of the motor (5) and one end of the boring shaft (4).

5. The boring spindle feed mechanism of a CNC milling and boring machine as described in claim 2, characterized in that: On the side of the arc-shaped mounting plate (10) that is far apart from each other, multiple sets of locking blocks (17) are fixed in sequence along the vertical direction. The arc-shaped mounting plate (9) is provided with a fixed locking channel (18) for the locking blocks (17) to engage.

6. The boring spindle feed mechanism of a CNC milling and boring machine as described in claim 4, characterized in that: The diameter of the lower pulley (6) is greater than the diameter of the upper pulley (6).

7. The boring spindle feed mechanism of a CNC milling and boring machine as described in claim 5, characterized in that: The number of locking blocks (17) on each set of the arc-shaped mounting plate (10) is at least three sets.

8. The boring spindle feed mechanism of a CNC milling and boring machine as described in claim 3, characterized in that: The T-shaped positioning rods (15) have chamfered ends that are close to each other, and the rod part of the T-shaped positioning rods (15) has a square rod structure.

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