CN220762973U - Raw bamboo sheet perforating slotting numerical control machine tool - Google Patents

Abstract

The utility model discloses a numerical control machine tool for perforating and slotting raw bamboo chips, which comprises a base, a bamboo chip clamping mechanism, a frame, a two-degree-of-freedom displacement mechanism and a milling mechanism, wherein a table top is arranged on the upper surface of the base; the bamboo chip clamping mechanism is arranged on the base and comprises a plurality of self-centering clamps which are distributed along the length direction of the table top, and the whole bamboo chip is adjusted to the same straight line position of the table top through the self-centering clamps so as to realize the alignment of the bamboo chip; the frame is arranged on the base; the two-degree-of-freedom displacement mechanism is arranged on the frame, and the milling mechanism is arranged on the two-degree-of-freedom displacement mechanism. The utility model has simple mechanism, strong adaptability of bamboo chip workpieces, high perforating and slotting efficiency, high automation degree and convenient operation; but also can automatically straighten the bent bamboo chips, and can accurately control the sizes of the open holes and the open grooves in the working process; the method is particularly suitable for large-scale customization and processing of the raw bamboo rod pieces of the elastic grid shells, and has strong practicability and wide market prospect.

Description

Raw bamboo sheet perforating slotting numerical control machine tool

Technical Field

The utility model belongs to the field of numerical control machine tools, relates to a numerical control machine tool for perforating and slotting raw bamboo chips, in particular to equipment capable of straightening and clamping raw bamboo chips, and is particularly suitable for large-scale customization and processing of raw bamboo rod pieces of elastic grid shells.

Background

The numerical control machine tool is short for numerical control machine tool, and is an automatic machine tool with a program control system. The control system is able to logically process a program defined by control codes or other symbolic instructions and to decode it, expressed in coded numbers, and input to the numerical control device via the information carrier. The numerical control device sends out various control signals to control the action of the machine tool through operation processing, and parts are automatically machined according to the shape and the size required by the drawing.

The elastic net shell structure is a self-bending forming structure, the forming principle is similar to that of a traditional bamboo woven lantern, and the hyperboloid net shell can be formed through the elasticity of the rod pieces only by connecting the nodes of a plurality of discrete rod pieces. The structure has the characteristics of light weight, high strength, soft and graceful shape, high customization degree and high assembly degree, and has great potential in the fields of building construction, landscape small products, outdoor tent, indoor decoration and the like. The structure is simple in manufacturing method, firstly, the rod piece is required to be precisely punched or grooved, then the hole sites or groove sites are aligned and connected and fastened, and the assembly can be completed. The raw bamboo chips are used as a material with high elastic strength, green ecology, low price and easy acquisition, and are particularly suitable for manufacturing elastic reticulated shell structures.

However, the current lack of equipment for precisely processing raw bamboo chips by numerical control limits the application of the raw bamboo chips to elastic reticulated shells. The raw bamboo chips are strip materials with natural flat cross sections, and the cross section shapes are irregular unlike standardized materials such as flat steel, glass fiber strips and the like. The existing numerical control machine tool does not have a clamp for an irregular long-strip elastic workpiece, and is difficult to fix the whole bamboo strip on a workbench. In addition, the straightness of the original bamboo chips is poor, and the bamboo chips are required to be straightened when being processed into linear strip materials. At present, no equipment can clamp and straighten the raw bamboo chip workpieces at the same time.

The common domestic processing mode of the raw bamboo chips is a mode of manual measurement and manual punching, has low efficiency and poor precision, and is difficult to meet the requirement of large-scale custom processing. Therefore, a numerical control device for processing raw bamboo chips is needed to achieve the purpose of producing the elastic reticulated shell structure with high precision, flexibility and high efficiency.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a machine tool capable of carrying out numerical control punching and slotting on long raw bamboo chips. The equipment can adapt to bamboo chips with different sizes, straighten the bamboo chips while clamping the bamboo chips, and then facilitate automatic and accurate punching and slotting on workpieces. The automatic machine tool has high operation precision, can process bamboo chips with different sizes, and has strong adaptability and high processing efficiency.

In order to achieve the aim of the utility model, the utility model provides a numerical control machine tool for perforating and slotting raw bamboo chips, which comprises a base, a bamboo chip clamping mechanism, a frame, a two-degree-of-freedom displacement mechanism and a milling mechanism,

the upper surface of the base is provided with a table top;

the bamboo chip clamping mechanism is arranged on the base and comprises a plurality of self-centering clamps which are distributed along the length direction of the table top, and the whole bamboo chip is adjusted to the same straight line position of the table top through the self-centering clamps so as to realize the alignment of the bamboo chip;

the frame is arranged on the base;

the two-degree-of-freedom displacement mechanism is arranged on the frame, and the milling mechanism is arranged on the two-degree-of-freedom displacement mechanism.

According to a further improvement of the utility model, the two-degree-of-freedom displacement mechanism comprises a horizontal movement mechanism arranged on the frame and a vertical movement mechanism connected with the horizontal movement mechanism, and the milling mechanism is arranged on the vertical movement mechanism.

The horizontal moving mechanism comprises a cross beam, a horizontal sliding rail and a synchronous belt which are horizontally arranged on the frame, a horizontal adjusting stepping motor fixed on the cross beam, and a synchronous belt wheel arranged at the output end of the horizontal adjusting stepping motor, wherein the cross beam is arranged on the horizontal sliding rail in a sliding way.

According to a further improvement of the utility model, the vertical moving mechanism comprises a vertical adjusting stepping motor, a vertical sliding rail and a vertical sliding block, wherein the vertical adjusting stepping motor is arranged on the cross beam, the vertical sliding rail is arranged on the vertical sliding rail in a sliding mode, the vertical sliding block is driven by the vertical adjusting stepping motor to slide on the vertical sliding rail, and the milling mechanism is arranged on the vertical sliding block.

According to a further improvement of the utility model, the milling mechanism comprises a spindle motor, a milling cutter chuck and a milling cutter, wherein the spindle motor is fixedly arranged on the vertical sliding block, the milling cutter chuck is arranged at the output end of the spindle motor, and the milling cutter is arranged on the milling cutter holder.

The bamboo chip clamping mechanism comprises a clamp group which is linearly arranged on the base, and the clamp group is composed of a plurality of identical self-centering clamps which can linearly move on the base.

According to a further improvement of the utility model, each self-centering clamp comprises a driving assembly and two movable clamping plates which are oppositely arranged, and the two movable clamping plates can move oppositely under the driving of the driving assembly so as to clamp the bamboo chips between the two movable clamping plates.

Further improvements to the utility model are that the side wall of the movable clamping plate is provided with a groove.

The driving assembly comprises a central gear, a screw rod, two sliding rails and two racks, wherein the central gear is rotatably arranged on the table top and positioned between the two movable clamping plates, the screw rod is in threaded connection with one movable clamping plate and penetrates through the movable clamping plate to be rotatably fixed on the other movable clamping plate, the two sliding rails are respectively connected with the two movable clamping plates, the two racks are respectively fixedly arranged on the two sliding rails and meshed with the central gear, and when the screw rod is rotated, the two movable clamping plates are enabled to move in opposite directions or in opposite directions under the combined action of the screw rod, the central gear and the racks.

According to a further improvement of the utility model, the driving assembly further comprises a rotary clamping hand wheel, and the rotary clamping hand wheel is fixedly connected with the free end of the screw rod.

Further improvements to the present utility model further include a controller in signal communication with the two degree of freedom displacement mechanism.

Compared with the prior art, the utility model at least has the following beneficial effects:

the utility model has the advantages of simple mechanism, strong adaptability of bamboo chip workpieces, high perforating and slotting efficiency, high automation degree, convenient operation and the like; but also can automatically straighten the bent bamboo chips, and can conveniently and accurately control the sizes of the open holes and the open grooves in the working process; has strong practicability and wide market prospect.

Drawings

For a clearer description of an embodiment of the utility model or of the solutions of the prior art, the drawings that are required to be used in the description of the embodiment or of the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, from which, without the inventive effort, other drawings can be obtained for a person skilled in the art, in which:

fig. 1 is a front isometric view of the whole structure of a numerical control machine tool for perforating and slotting raw bamboo chips, which is provided by the embodiment of the utility model.

Figure 2 is a front isometric view of a key portion of the overall structure of an embodiment of the present utility model.

Fig. 3 is a front isometric view of a self-centering fixture according to an embodiment of the present utility model.

Fig. 4 is a rear isometric view of a self-centering fixture according to an embodiment of the present utility model.

Fig. 5 is a front isometric view of an example curved bamboo structure in accordance with an embodiment of the present utility model.

The figure shows: 1 is a synchronous belt pressing plate, 2 is a vertical sliding rail, 3 is a vertical adjusting stepping motor, 4 is a horizontal adjusting stepping motor, 5 is a spindle motor, 6 is a self-centering clamp, 7 is a synchronous belt, 8 is a table top with grooves, 9 is a horizontal sliding rail, 10 is a cross beam, 11 is a vertical sliding block, 12 is a horizontal sliding block, 13 is a spindle fixing seat, 14 is a milling cutter, 15 is a base, 16 is a frame, 17 is a synchronous belt tightness adjusting knob, 18 is a lead screw, 19 is a lead screw nut, 20 is a rack, 21 is a movable clamping plate, 22 is a lead screw fixing seat, 23 is a workpiece support, 24 is a clamping hand wheel, 25 is a bearing fixing screw, 26 is a bearing, 27 is a central gear, 28 is a support fixing screw, 29 is a sliding rail, and 30 is a lead screw fixing seat.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the following embodiments, directional terms, such as "upper", "lower", "front", "rear", "left", "right", etc., are merely referring to the directions of the drawings, and thus, the directional terms are used for illustrating the present utility model and not for limiting the present utility model.

As shown in fig. 1 to 4, the numerical control machine tool for perforating and slotting raw bamboo chips provided by the utility model comprises a control mechanism, a base 15, a bamboo chip clamping mechanism, a two-degree-of-freedom displacement mechanism, a milling mechanism and a PLC (programmable logic controller) which are oppositely arranged on the base 15.

In some embodiments of the utility model, the control mechanism is a control system of a CNC machining center, and is used for controlling the automatic start, stop, reversing and speed change of a main shaft of a machine tool according to digital program instructions, so that the feeding speed, the feeding direction and the machining path can be automatically controlled to carry out machining, and various auxiliary actions required can be completed.

The two-degree-of-freedom displacement mechanism comprises a horizontal movement mechanism arranged on the frame and a vertical movement mechanism connected with the horizontal movement mechanism, and the milling mechanism is arranged on the vertical movement mechanism. The two-degree-of-freedom displacement mechanism and the milling mechanism are both connected with the PLC.

The horizontal moving mechanism comprises a horizontal adjusting stepping motor 4, a synchronous pulley connected with an output shaft of the horizontal adjusting stepping motor 4, a horizontal sliding rail 9 horizontally arranged on a frame 16 and a synchronous belt 7, wherein the horizontal adjusting stepping motor 4 is arranged on a cross beam 10, the tail end of the frame 16 is also provided with a synchronous belt tightness adjusting knob for adjusting the pretightening force of the synchronous belt 7, the two ends of the synchronous belt 7 are fixed on the horizontal sliding rail 9 through a synchronous belt pressing plate 1, the horizontal adjusting stepping motor 4 drives the synchronous pulley to rotate, and under the transmission effect of the synchronous pulley and the synchronous belt 7, the moving mechanism is driven to move on the horizontal sliding rail 9, and after reaching the corresponding position, bamboo chips are punched; the horizontal sliding rail 9 is also provided with a horizontal sliding block 12, and the horizontal sliding block 12 is connected with the vertical moving mechanism through the cross beam 10; the vertical moving mechanism comprises a vertical adjusting stepping motor 3, a vertical sliding rail 2 and a vertical sliding block 11, wherein the vertical adjusting stepping motor 3 is arranged on the cross beam 10, the vertical sliding block 11 is arranged on the vertical sliding rail 2 in a sliding manner, the vertical sliding block 11 can be driven to slide on the vertical sliding rail 2 by the vertical adjusting stepping motor 3, and the vertical sliding block 11 is connected with a main shaft fixing seat 13; the milling mechanism is mounted on the spindle fixing base 13. The milling mechanism comprises a spindle motor 5, a milling cutter chuck and a milling cutter 14, wherein the spindle motor 5 is fixedly arranged on the spindle fixing seat 13, the milling cutter chuck is arranged at the output end of the spindle motor 5, and the milling cutter 14 is arranged on the milling cutter holder head.

In some embodiments of the present utility model, the base 15 includes a plurality of square bars and base fixing plates disposed in parallel, the square bars are welded to the base fixing plates, and in other embodiments, an integrally cast iron base may be used.

The bamboo chip clamping mechanism comprises a clamp group which is linearly arranged on the base 15, and the clamp group comprises a plurality of self-centering clamps 6 which can linearly move on the base 15. Each self-centering clamp 6 comprises a driving assembly and two movable clamping plates 21 which are oppositely arranged, and the two movable clamping plates 21 can move oppositely under the driving of the driving assembly so as to clamp the bamboo chips between the two movable clamping plates 21. The driving assembly comprises a bearing 26, a bearing fixing screw 25, a central gear 27, a clamping hand wheel 24, a screw rod 18, two sliding rails 29 and two racks 20, the table top 8 with a groove is fixed on the base 15, the upper surface of the table top 8 is concavely provided with a groove so as to better fix the self-centering clamp 6, the bearing 26 is fixed on the table top 8 with the groove through the bearing fixing screw 25, the central gear 27 is fixed on the outer wall of the bearing 26, the two sliding rails 29 are respectively clamped on the two workpiece supports 23, the workpiece supports 23 are fixed on the table top 8 with the groove through support fixing screws 28, and the movable clamping plate 21 is mutually clamped with the sliding rails 29. The two movable clamping plates 21 are oppositely arranged, the screw rod 18 is inserted into one movable clamping plate 21, and is fixed on the other movable clamping plate 21 through the screw rod fixing seat 22 after passing through the movable clamping plate 21, and the free end part of the screw rod 18 is fixedly connected with the clamping hand wheel 24. Since the rack 20 provided on the slide rail 29 is engaged with the central gear 27 provided on the outer wall of the bearing 26, when the movable clamping plate 21 is clamped by rotating the clamping hand wheel 24, the rack and pinion is driven to make the two movable clamping plates 21 slide and change the same distance with each other, so that the bamboo chips are fixed at the central axis position of the grooved table top 8 without deviation.

According to the utility model, the long bamboo chips to be processed are placed on the workpiece support 23, then the clamping hand wheel 24 is rotated along the clamping direction, at the moment, under the meshing action of the central gear 27 and the racks 20 on the sliding rail 29, a pair of movable clamping plates 21 simultaneously generate displacement towards the center of the gears, the bamboo chips to be processed are fixed at the central axis position of the table top 8 with grooves, the self-centering clamps 6 are respectively positioned at different positions in the length direction of the bamboo chips, and the whole bamboo chips are all adjusted to the central axis position of the table top 8 under the combined action of the self-centering clamps 6 at the different positions, so that the bamboo chips are straightened.

In some embodiments of the present utility model, the inner side wall of the movable clamping plate 21 is also provided with a groove, so that the bamboo chips with uneven thickness are prevented from moving up and down during punching, and the bamboo chips are better clamped.

The cross beam 10 is moved to the tail end of the frame 16, a plurality of self-centering clamps 6 are uniformly arranged on the grooved table top 8 according to the length of long bamboo chips to be processed and preset intervals (such as intervals of 300-500 mm), all support fixing screws 28 and bearing fixing screws 25 are screwed down, the corresponding self-centering clamps 6 are fixed, and then the clamping hand wheels 24 are adjusted, so that the distance between each pair of movable clamping plates 21 is larger than the width of each bamboo chip. Then, the long bamboo chips to be processed are placed on the workpiece support 23, the clamping hand wheel 24 is rotated along the clamping direction, at the moment, under the meshing action of the gear and the rack, the pair of movable clamping plates 21 simultaneously generate displacement towards the center of the gear, the bamboo chips to be processed are clamped, the above operation is repeated on all self-centering clamps 6, and the bamboo chips to be processed are fixed at the central axis position of the table top 8 with grooves. And then triggering the two-degree-of-freedom displacement mechanism to move to the starting point of punching the bamboo chips through the PLC. And then the file is read by a PLC controller to trigger the two-degree-of-freedom displacement mechanism and the milling mechanism to punch and slot the bamboo chips to be processed.

The machine tool provided by the embodiment can adapt to bamboo chips with different sizes, can straighten the bamboo chips while clamping the bamboo chips, can automatically and accurately punch and slot on a workpiece, and has the advantages of simple mechanism, strong adaptability of the bamboo chip workpiece, high slotting efficiency, high automation degree, convenience in operation and the like; the PLC is adopted as a controller system, so that the stability is high, the automation degree is high, and the operation is flexible.

The machine tool provided by the embodiment can be used for carrying out numerical control punching and slotting on the long raw bamboo chips, and can automatically straighten the bent bamboo chips, and the sizes of the holes and the slots can be accurately controlled in the working process; the method is particularly suitable for large-scale customization and processing of the raw bamboo rod pieces of the elastic grid shells, and has strong practicability and wide market prospect.

In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.

The circuit, the internal electronic components and the modules are all in the prior art, and can be completely realized by a person skilled in the art, and needless to say, the protection content of the utility model does not relate to the improvement of software.

The described embodiments are only preferred examples of the present utility model and are not intended to limit the embodiments of the present utility model, and other variations or modifications in the description may be made by those skilled in the art without necessarily and without intending to be exhaustive of all embodiments, any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the present utility model are intended to be included within the scope of the claims.

Claims (10)

1. The numerical control machine tool for perforating and slotting the raw bamboo chips is characterized by comprising a base (15), a bamboo chip clamping mechanism, a frame (16), a two-degree-of-freedom displacement mechanism and a milling mechanism,

the upper surface of the base (15) is provided with a table top (8);

the bamboo chip clamping mechanism is arranged on the base (15) and comprises a plurality of self-centering clamps (6) which are arranged along the length direction of the table top (8), and the whole bamboo chip is adjusted to the same straight line position of the table top (8) through the self-centering clamps (6) so as to realize the alignment of the bamboo chip;

the frame (16) is arranged on the base (15);

the two-degree-of-freedom displacement mechanism is arranged on the frame (16), and the milling mechanism is arranged on the two-degree-of-freedom displacement mechanism.

2. The numerical control machine tool for perforating and slotting raw bamboo chips according to claim 1, wherein the two-degree-of-freedom displacement mechanism comprises a horizontal movement mechanism arranged on a frame (16) and a vertical movement mechanism connected with the horizontal movement mechanism, and the milling mechanism is arranged on the vertical movement mechanism.

3. The numerical control machine tool for perforating and slotting raw bamboo chips according to claim 2 is characterized in that the horizontal moving mechanism comprises a cross beam (10), a horizontal sliding rail (9) and a synchronous belt (7) which are horizontally arranged on a frame (16), a horizontal adjusting stepping motor (4) fixed on the cross beam (10), and a synchronous belt wheel arranged at the output end of the horizontal adjusting stepping motor (4), and the cross beam (10) is arranged on the horizontal sliding rail (9) in a sliding mode.

4. The numerical control machine tool for perforating and slotting raw bamboo chips according to claim 3 is characterized in that the vertical moving mechanism comprises a vertical adjusting stepping motor (3) arranged on a cross beam (10), a vertical sliding rail (2) and a vertical sliding block (11) arranged on the vertical sliding rail (2) in a sliding manner, the vertical adjusting stepping motor (3) drives the vertical sliding block (11) to slide on the vertical sliding rail (2), and the milling mechanism is arranged on the vertical sliding block (11).

5. The numerical control machine tool for perforating and slotting raw bamboo chips according to claim 4, wherein the milling mechanism comprises a spindle motor (5), a milling cutter chuck and a milling cutter (14), the spindle motor (5) is fixedly arranged on a vertical sliding block (11), the milling cutter chuck is arranged at the output end of the spindle motor (5), and the milling cutter (14) is arranged on the milling cutter chuck.

6. The numerical control machine tool for perforating and slotting raw bamboo chips according to claim 1, characterized in that each self-centering clamp (6) comprises a driving assembly and two movable clamping plates (21) which are oppositely arranged, and the two movable clamping plates (21) can move oppositely under the driving of the driving assembly so as to clamp the bamboo chips positioned between the two movable clamping plates (21).

7. The numerical control machine tool for perforating and slotting raw bamboo chips as defined in claim 6, wherein the side wall of the movable clamping plate (21) is provided with a slot.

8. The numerical control machine tool for perforating and slotting raw bamboo chips according to claim 6, wherein the driving assembly comprises a central gear (27), a screw rod (18), two sliding rails (29) and two racks (20), the central gear (27) is rotatably arranged on the table top (8) and positioned between the two movable clamping plates (21), the screw rod (18) is in threaded connection with one movable clamping plate (21) and is rotatably fixed on the other movable clamping plate (21) after penetrating through the movable clamping plate (21), the two sliding rails (29) are respectively connected with the two movable clamping plates (21), the two racks (20) are respectively fixedly arranged on the two sliding rails (29) and meshed with the central gear (27), and when the screw rod (18) is rotated, the two movable clamping plates (21) are oppositely or reversely moved under the combined action of the screw rod (18) and the central gear (27) and the racks (20).

9. The numerical control machine tool for perforating and slotting raw bamboo chips according to claim 6, wherein the driving assembly further comprises a clamping hand wheel (24), and the clamping hand wheel (24) is fixedly connected with the free end of the screw rod (18).

10. The numerical control machine tool for perforating and slotting raw bamboo chips according to any one of claims 1-9, further comprising a controller, wherein the controller is in signal connection with the two-degree-of-freedom displacement mechanism.