CN204430334U - Six square shaft numeric control drilling machine tools - Google Patents

Abstract

The utility model discloses a hexagonal axis numerical control drilling machine tool, which comprises a base, a column, a numerical control sliding table, a pneumatic fixture, a multi-axis box and a driving motor. Two rows of symmetrically arranged main shafts are arranged in the multi-axis box. Driven by a drive motor to rotate synchronously in the same direction, a movable drilling template is set between the multi-axis box and the pneumatic clamp. The movable drilling template is arranged horizontally and connected to the multi-axis box through a guide column; At least one positioning unit is installed on the top, and each positioning unit includes two V-shaped blocks arranged side by side. There is a pull rod between the two V-shaped blocks. There are cylinders. The utility model can adapt to the drilling processing requirements of hexagonal shafts, has high processing efficiency, accurate and reliable positioning, and small processing errors, and is also suitable for drilling processing of hexagonal pipes, round pipes or other cylindrical shaft parts.

Description

Hexagonal Axis CNC Drilling Machine Tool

technical field

The utility model belongs to the technical field of machine tools, and relates to a machine tool for drilling shaft parts, in particular to a hexagonal axis numerical control drilling machine tool.

Background technique

The hexagonal shaft refers to the shaft parts with a regular hexagonal cross-section. It is widely used in mechanical transmission components. In order to meet the assembly needs, it needs to be drilled on the surface. Since there is no special machine tool for hexagonal shaft drilling at present, When using traditional drilling machines, the efficiency is low and cannot meet the needs of batch processing. Although the existing multi-hole drills can process multiple holes at the same time, it is difficult to meet the positioning requirements of the hexagonal axis, and the processing error is large, resulting in a low product qualification rate. .

Utility model content

In order to solve the above technical problems, the utility model provides a hexagonal axis numerical control drilling machine tool, which can meet the requirements of hexagonal axis drilling processing, and has high processing efficiency and reliable positioning.

Its technical scheme is as follows:

A hexagonal axis CNC drilling machine tool, comprising a base, a column fixed on the base, a CNC sliding table slidably installed on the base, a pneumatic clamp fixed to the CNC sliding table, and a pneumatic clamp mounted on the The multi-axis box above and connected to the column, and the drive motor installed on the upper end of the multi-axis box, there are two rows of symmetrically arranged main shafts in the multi-axis box, and the main shafts are driven by the drive motor to rotate synchronously in the same direction. A movable drilling template is set between the axle box and the pneumatic fixture, and the movable drilling template is set horizontally and connected with the multi-axle box through the guide column;

The pneumatic clamp includes a bottom plate, on which at least one positioning unit is installed, and each positioning unit includes two V-shaped blocks arranged side by side, and a pull rod is arranged between the two V-shaped blocks. Slidably passes through the base plate and is connected with the air cylinder.

With the above structure, the synchronous rotation of multiple spindles in the same direction can be realized through the multi-axis box, and multiple holes on multiple hexagonal axes can be processed at the same time, with high processing efficiency. The movable drilling template is used to guide the drill bit, ensuring positioning and drilling. Accuracy, the pneumatic fixture uses V-shaped blocks to position the hexagonal shaft, the V-shaped block can fit closely with the outer surface of the hexagonal shaft, further improving the positioning accuracy, the pressure plate is driven by the cylinder, and can simultaneously position the hexagonal shafts on the V-shaped blocks on both sides Clamping and positioning, easy to operate.

As a preference, the output end of the drive motor is provided with a motor gear, the motor gear is located in the multi-axis box, and is meshed with 2 double gears and 2 triple gears, and each double gear is meshed with 2 main shaft gears , the triple gear is directly meshed with two main shaft gears, and is meshed with the secondary transmission gear through the intermediate gear, and the secondary transmission gear is meshed with two main shaft gears, and each main shaft gear is fixedly sleeved on the corresponding main shaft . This structure can ensure the synchronous rotation of multiple main shafts in the same direction and ensure the consistency of drilling.

Preferably, an end face positioning mechanism is provided on the bottom plate, and the end face positioning mechanism includes a baffle arranged on one side of the positioning unit and an adjusting screw horizontally arranged on the baffle, and the adjusting screw is facing the V-shaped block. With the above structure, the end face positioning mechanism further ensures the clamping and positioning effect of the pneumatic clamp. When the axial position of the hole to be processed changes, the adjusting screw can move the workpiece in the axial direction to meet the processing requirements.

As preferably, the movable drilling formwork includes a main formwork and a secondary formwork, two strip-shaped holes are symmetrically arranged on the main formwork, and the secondary formwork consists of two pieces, which are installed on the lower surface of the main formwork, and are respectively connected to the two Corresponding to the strip holes, the secondary template is distributed with drill guide holes along the length direction. The movable drilling template with this structure has a simple structure, is convenient to manufacture and assemble, provides guidance for the drill bit, and reduces processing errors.

As a preference, the main formwork has a rectangular structure as a whole, and its four corners protrude outwards, and guide column mounting seats are respectively provided, and positioning pins are arranged on the bottom surface of the main formwork opposite to the guide column mounting seats, correspondingly , Positioning plates are arranged on both sides of the bottom plate of the pneumatic clamp, and positioning holes are arranged on the positioning plate. The positioning holes are matched with the positioning pins. When drilling, the positioning pins are embedded in the positioning holes. Through the cooperation of the positioning hole on the pneumatic clamp and the positioning pin on the movable drilling template, multiple holes to be processed on the workpiece installed on the pneumatic clamp can be positioned simultaneously to ensure drilling efficiency.

Preferably, a cooling system and an electrical system are respectively provided on both sides of the column, forming a modular design and facilitating maintenance.

Preferably, a protective cover is provided outside the numerically controlled slide table to prevent cutting fluid from splashing.

Beneficial effect:

The hexagonal axis numerical control drilling machine tool of the utility model can adapt to the drilling processing requirements of the hexagonal axis, has high processing efficiency, accurate and reliable positioning, and small processing error. It is also suitable for drilling hexagonal tubes, round tubes or other cylindrical shaft parts. hole processing.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the top view of Fig. 1;

Fig. 4 is the structural representation of multi-axle box in the utility model;

Fig. 5 is the structural representation of pneumatic clamp in the utility model;

Fig. 6 is the right view of Fig. 5;

Figure 7 is a reference diagram of the use state of the pneumatic clamp when processing a long-axis workpiece;

Figure 8 is a reference diagram of the use state of the pneumatic clamp when processing short-axis workpieces;

Fig. 9 is the structural representation of movable drilling formwork in the utility model;

FIG. 10 is a top view of FIG. 9 .

Detailed ways

Below in conjunction with embodiment and accompanying drawing, the utility model is further described.

A hexagonal axis CNC drilling machine as shown in Figures 1 to 3, including a base 1, a column 2, a CNC slide 3, a pneumatic clamp 4, a multi-axis box 5, a drive motor 6 and a movable drilling template 7 and other components, Wherein the column 2 is fixed on the base 1, and the numerical control sliding table 3 is installed on the base 1, and is arranged horizontally on one side of the column 2. The numerical control sliding table 3 adopts a stepping motor, a ball screw pair drive, a The linear guide rail auxiliary support method, the pneumatic clamp 4 is fixed on the CNC slide table 3, the multi-axis box 5 is installed above the pneumatic clamp 4 and connected with the column 2, the driving motor 6 is installed on the upper end of the multi-axis box 5, and the movable drilling template 7 is horizontally low It is arranged between the multi-axis box 5 and the pneumatic clamp 4, and is connected with the multi-axis box 5 through four guide columns 7a.

Above the base 1, a protective cover 10 is provided outside the CNC slide table 3 and the multi-axis box 5 to prevent the cutting fluid from splashing. As shown in FIG. sides.

It can be seen from Fig. 4 that two rows of 12 main shafts 51 are arranged symmetrically in the multi-axis box 5, and the lower end of the main shaft 51 passes through the multi-axis box 5 for installing the drill bit 51a. The column 2 is a hollow structure with a main shaft inside. Balancing device (not shown in the figure).

The 12 main shafts 51 are driven by the motor gear 61 to rotate synchronously in the same direction. The motor gear 61 is fixedly sleeved on the output end of the drive motor 6, located in the multi-axis box 5, and meshed with 2 double gears 53 and 2 triple gears 54, each double gear 53 is meshed with two main shaft gears 55, the triple gear 54 is directly meshed with two main shaft gears 55, and meshes with the secondary transmission gear 57 through the intermediate gear 56, the secondary transmission gear 57 is meshed with two main shaft gears 55, and each main shaft gear 55 is fixedly sleeved on the corresponding main shaft 51;

Fig. 5 and Fig. 6 have shown the specific structure of pneumatic fixture 4, and this pneumatic fixture 4 comprises base plate 41, and 6 positioning units are installed on the base plate 41, and press 3 rows, 2 column rectangular arrays are distributed, and each positioning unit comprises two The V-shaped block 42 that block is arranged side by side, is provided with pull bar 43 between two V-shaped blocks 42, and described pull bar 43 upper end is equipped with pressing plate 44, and the lower end slidably passes through base plate 41, and is connected with cylinder 45.

The V-shaped block 42 is fixed on the bottom plate 41 by bolts, and the middle part is provided with a notch 42a, the notch 42a is large at the top and small at the bottom, and the side walls on both sides fit the outer surface of the hexagonal shaft to be processed, in order to adapt to the processing of different types of hexagonal shafts If necessary, the V-shaped block 42 is designed with different sizes, and the V-shaped block 42 of the corresponding size can be replaced during processing.

As shown in Figure 7, an end face positioning mechanism is provided on the bottom plate 41, and the end face positioning mechanism includes a baffle 46 arranged on one side of the positioning unit and an adjusting screw 47 horizontally arranged on the baffle 46, the adjusting screw 47 There are 6 pieces, which correspond to the V-shaped blocks 42 one by one. After the workpiece is installed, the adjusting screw 47 is facing and pressed against the end of the workpiece. The two sides of the bottom plate 41 are provided with positioning plates 48, and the positioning plate 48 is provided with a plurality of positioning hole 48a.

When processing long-axis workpieces, install one end of the long axis in the slot 42a of the V-shaped block 42 of one positioning unit, and tighten it with the adjusting screw 47, and the other end is opposite to the slot 42a of the V-shaped block 42 of the other positioning unit. Inside, six long-axis workpieces can be installed at the same time. The pull rod 43 and the pressure plate 44 are arranged between the two rows of positioning units, and are located on the center line of the two relative positioning units. The cylinder 45 is activated to drive the pull rod 43 to move downward, and the pressure plate 44 Press the workpiece tightly to complete the clamping and positioning.

Referring to Fig. 8, when processing short-axis workpieces, two rows of end face positioning mechanisms are set corresponding to the positioning unit, and 12 adjusting screws 47 are set to correspond to the V-shaped blocks 42 one by one. Between the V-shaped blocks 42, each V-shaped block 42 is equipped with a short-axis workpiece, and each positioning unit can clamp and position 42 short-axis workpieces to meet the processing requirements of clamping and positioning 12 short-axis workpieces at the same time. When the positioning dimension of the workpiece changes, the processing requirements can be met by replacing the V-shaped block 42 . The pneumatic clamp 4 can also be used for clamping and positioning hexagonal tubes, round tubes or other cylindrical shaft parts.

As shown in Figures 9 and 10, the movable drilling formwork 7 includes a main formwork 71 and a secondary formwork 72. The main formwork 71 is approximately rectangular and symmetrical to the left and right. The main formwork 71 is symmetrically provided with two strip holes 73, The secondary template 72 is two pieces, which are installed on the lower surface of the main template 71 by bolts corresponding to the two shaped holes 73. Each secondary template 72 is distributed with 6 drill guide holes 74 along the length direction, and the drill guide holes 74 penetrate up and down. , and is opposite to the strip hole 73, and its lower end passes through the secondary template 72 and extends downward to form a guide part 74a

The four corners of the main template 71 protrude outwards, and are respectively provided with guide column mounting seats 75, one end of the guide column 7a is installed in the guide column mounting seats 75, and the lower end of the guide column mounting seats 75 extends vertically downward , and pass through the main template 71 to form a positioning pin 76, the lower end of the positioning pin 76 is lower than the end surface position of the guide part 74a, the positioning pin 76 is adapted to the positioning hole 48a on the positioning plate 48 in the pneumatic clamp 4, the machine tool During work, the positioning pin 76 is embedded in the positioning hole 48a to complete the overall positioning of the movable drill template 7, and the drill bit guide hole 74 provides guiding and positioning for the drill bit 51a to ensure machining accuracy. When the workpiece drilling diameter changes, by replacing the drill bit 51a And the auxiliary formwork 72 on the movable drilling formwork 7 meets processing requirements.

Finally, it should be noted that the above description is only a preferred embodiment of the utility model, and under the inspiration of the utility model, those skilled in the art can make many A similar representation, such transformations all fall within the protection scope of the present utility model.

Claims (7)

1. A hexagonal axis CNC drilling machine tool, comprising a base (1), a column (2) fixed on the base (1), a CNC slide table (3) slidably installed on the base (1) ), the pneumatic clamp (4) fixed with the numerical control slide table (3), the multi-axis box (5) installed on the top of the pneumatic clamp (4) and connected with the column (2), and installed on the multi-axis box ( 5) The driving motor (6) at the upper end is characterized in that: two rows of symmetrically distributed main shafts (51) are arranged in the multi-axis box (5), and the main shafts (51) are driven by the driving motor (6) in the same direction and synchronously Rotate, between the multi-axis box (5) and the pneumatic clamp (4) is provided with a movable drilling template (7), the movable drilling template (7) is horizontally set, and through the guide column (7a) and the multi-axis box (5) connect; Described pneumatic clamp (4) comprises base plate (41), and at least one positioning unit is installed on this base plate (41), and each positioning unit comprises two V-shaped blocks (42) that are arranged side by side, and two V-shaped blocks (42) A pull rod (43) is arranged between, the upper end of the pull rod (43) is equipped with a pressing plate (44), the lower end slidably passes through the bottom plate (41), and is connected with a cylinder (45). 2. The hexagonal axis numerical control drilling machine tool according to claim 1, characterized in that: the output end of the drive motor (6) is provided with a motor gear (61), and the motor gear (61) is located in the multi-axis box (5 ), and engaged with 2 double gears (53) and 2 triple gears (54), each double gear (53) is meshed with 2 main shaft gears (55), on the triple gear (54) There are 2 main shaft gears (55) in direct mesh, and are meshed with the secondary transmission gear (57) through the intermediate gear (56). The secondary transmission gear (57) is meshed with 2 main shaft gears (55), and each main shaft The gears (55) are fixedly sleeved on the corresponding main shafts (51) respectively. 3. The hexagonal axis CNC drilling machine tool according to claim 1, characterized in that: the bottom plate (41) is provided with an end face positioning mechanism, and the end face positioning mechanism includes a baffle (46) arranged on one side of the positioning unit And the adjustment screw (47) that is horizontally arranged on the baffle plate (46), the adjustment screw (47) is facing the V-shaped block (42). 4. The hexagonal axis numerical control drilling machine tool according to claim 3, characterized in that: the movable drilling template (7) includes a main template (71) and a secondary template (72), and the main template (71) is symmetrical Two strip-shaped holes (73) are provided on the ground, and the secondary template (72) is two pieces, which are installed on the lower surface of the main template (71) and correspond to the two shaped holes (73) respectively. The secondary template ( 72) drill bit guide holes (74) are distributed along the length direction. 5. The hexagonal axis numerical control drilling machine tool according to claim 4, characterized in that: the main template (71) is a rectangular structure as a whole, its four corners protrude outward, and are respectively provided with guide column mounting seats (75), the main template (71) bottom surface opposite to this guide post mounting seat (75) is provided with positioning pins (76), correspondingly, positioning plates are provided on both sides of the bottom plate (41) of the pneumatic clamp (4) (48), the positioning plate (48) is provided with a positioning hole (48a), the positioning hole (48a) is compatible with the positioning pin (76), when drilling, the positioning pin (76) is embedded in the positioning hole (48a )Inside. 6. The hexagonal axis numerical control drilling machine tool according to any one of claims 1 to 5, characterized in that: a cooling system (8) and an electrical system (9) are respectively provided on both sides of the column (2). 7. The hexagonal axis numerical control drilling machine tool according to any one of claims 1 to 5, characterized in that a protective cover (10) is provided outside the numerical control sliding table (3).