Door pocket hole slot machining center

Abstract

The application relates to the technical field of wooden door machining centers, in particular to a door pocket hole and groove machining center which comprises a rack, a control system, a lifting conveying mechanism, a workbench, a hole and groove machining mechanism located at one side of the workbench, a three-axis system and a clamping mechanism and is characterized in that the hole and groove machining mechanism comprises a supporting plate cross beam and multiple groups of machining units installed through the supporting plate cross beam, and the three-axis system comprises an axial driving unit capable of driving the supporting plate cross beam to move in the axial direction and a transverse driving unit capable of moving in the transverse direction. The door pocket hole and groove machining center can improve the working efficiency of door pocket hole and groove machining, and the hole and groove machining time of a single door pocket is reduced from more than 1 min in the prior art to 20-30 s.

Description

Technical Field

[0001] This application relates to the technical field of wooden door processing centers, specifically to a door frame hole groove processing center. Background Technology

[0002] It is known that door frames require corresponding slots to be made on the door panels, such as hinge holes. These slots are created using a door frame slot machining center. Existing door frame slot machining centers, such as the one disclosed in CN113771149A entitled "A Door Frame Molding Lock Hole and Hinge Hole Processing Equipment," include a work platform with a material conveying mechanism, a side clamping mechanism, and an ejection mechanism. The material conveying mechanism has symmetrically arranged baffle positioning devices at its front and rear ends. The processing mechanism is slidably mounted on one side of the work platform, close to the ejection mechanism. Multiple processing devices are arranged side-by-side on the processing mechanism, and upper clamping devices are located on both sides of the processing mechanism. Using this technical solution, the material conveying mechanism moves and transports the door frame material, the side clamping mechanism and baffle positioning devices automatically position and clamp the door frame, and the processing mechanism, in conjunction with the upper clamping devices, clamps the door frame while automatically positioning and processing the hinge holes or lock holes on the door frame. This results in a high degree of automation and processing efficiency.

[0003] In the above scheme, the three processing mechanisms need to be adjusted and positioned separately, so the processing efficiency is still relatively low. Utility Model Content

[0004] This application provides a door frame slot machining center, which overcomes the problem of low production efficiency in existing slot machining centers. The specific technical solution adopted is as follows:

[0005] A door frame slotting machining center includes a frame, a control system, a lifting and conveying mechanism mounted on the frame, a worktable, a slotting machining mechanism located on one side of the worktable, a three-axis system, and a clamping mechanism. The lifting and conveying mechanism is capable of axial conveying and longitudinal lifting. The slotting machining mechanism includes a support beam and multiple machining units mounted on the support beam. The three-axis system includes an axial drive unit capable of driving the support beam to move axially and a transverse drive unit capable of moving laterally.

[0006] Preferably, the three-axis system further includes an axial sub-drive unit capable of driving the machining unit to move axially.

[0007] Preferably, the three-axis system further includes a longitudinal drive unit capable of driving the machining unit to move up and down longitudinally.

[0008] Preferably, the processing unit includes multiple processing heads, and the three-axis system further includes a longitudinal sub-drive unit capable of driving the processing heads to move up and down longitudinally and a thickness measuring unit capable of moving with the processing heads.

[0009] Preferably, the longitudinal drive unit is a servo drive unit, and the longitudinal sub-drive unit is a cylinder drive unit.

[0010] Preferably, the clamping mechanism includes a movable clamping unit located on the same side of the slotting mechanism and a fixed clamping unit located on the opposite side of the slotting mechanism. The movable clamping unit can move axially under the drive of the avoidance unit.

[0011] Preferably, the movable clamping unit includes a mounting base fixedly connected to the avoidance unit, the mounting base is provided with a backing block and a clamping drive, the telescopic end of the clamping drive is provided with a pressure foot, and the fixed clamping unit cooperates with the backing block to achieve lateral clamping.

[0012] Preferably, the movable clamping unit further includes a pushing component disposed on the mounting base, the pushing component being capable of pushing material laterally.

[0013] Preferably, the workbench includes a support frame and a plurality of support plates fixedly installed through the support frame. The support plates are arranged laterally, and the plurality of support plates are spaced apart along the axial direction. A pallet cylinder is provided on one side of the support plate, and a lifting pallet is provided at the telescopic end of the pallet cylinder. There is a gap between the end face of the lifting pallet and the backing block.

[0014] The door frame slotting machining center of this application, by means of multiple slotting machining mechanisms set by the common support plate crossbeam, can improve the working efficiency of door frame slotting machining. The slotting machining time for a single door frame is increased from more than 1 minute in the prior art to 20~30 seconds.

[0015] Meanwhile, by means of the longitudinal drive unit and the longitudinal sub-drive unit, the door frame slot machining center of this application can adapt to the drilling of slots with large depths. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide further explanation of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0017] Figure 1 This is a schematic diagram of a door frame hole groove machining center provided in an embodiment of this application.

[0018] Figure 2 yes Figure 1A magnified view of a portion of point A in the middle.

[0019] Figure 3 This is a schematic diagram of a three-axis system provided in an embodiment of this application.

[0020] Figure 4 This is a structural schematic diagram of the triaxial system provided in the embodiments of this application from another perspective.

[0021] Figure 5 This is a schematic diagram of a clamping mechanism provided in an embodiment of this application.

[0022] Figure 6 This is a schematic diagram of a movable clamping unit provided in an embodiment of this application.

[0023] In the attached diagrams: 10. Frame; 20. Lifting and conveying mechanism; 30. Worktable; 31. Support frame; 32. Support plate; 33. Pallet cylinder; 34. Lifting pallet; 40. Hole and groove processing mechanism; 41. Pallet beam; 42. Processing unit; 421. Processing head; 51. Axial drive unit; 52. Lateral drive unit; 53. Axial sub-drive unit; 54. Longitudinal drive unit; 55. Longitudinal sub-drive unit; 56. Thickness measuring unit; 60. Clamping mechanism; 61. Movable clamping unit; 611. Mounting base; 612. Backing block; 613. Pressing drive; 614. Presser foot; 615. Pushing component; 62. Fixed clamping unit; 63. Clearance unit; 70. Control system. Detailed Implementation

[0024] The technical solutions in this application are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Reference Figures 1-6 The door frame slot machining center shown includes a frame 10, a control system 70, a lifting and conveying mechanism 20, a worktable 30, a slot machining mechanism 40 located on one side of the worktable 30, a three-axis system, and a clamping mechanism 60 mounted on the frame 10.

[0026] Both the frame 10 and the control system 70 are existing technologies. The frame 10 is any structure with a certain length and strength that can provide space support for the installation of other components. The control system 70 is any control cabinet of a machining center, such as a PLC control cabinet.

[0027] The lifting and conveying mechanism 20 is any of the prior art, such as a belt conveyor capable of lifting and lowering. Specifically, it may include multiple sets of lifting cylinders screwed or welded onto the frame 10, a conveying mechanism frame mounted through the multiple sets of lifting cylinders, and conveying rollers and a belt drive system mounted through the conveying mechanism frame. Thus, the lifting and conveying mechanism can convey along the axial x-axis and lift and lower along the longitudinal z-axis.

[0028] The worktable 30 can be any of the prior art. For example, it includes a metal support frame 31 and multiple support plates 32 screwed or welded to the support frame 31. The support frame 31 has a length approximately the same as the frame 10 and a width greater than that of the lifting and conveying mechanism 20. The support plates 32 are arranged axially along the transverse y-axis, and their two ends are screwed or welded to the support frame 31. The multiple support plates 32 are spaced apart axially along the x-axis, and the interval between adjacent support plates 32 is to allow space for the lifting and lowering of the conveying rollers. In particular, a pallet cylinder 33 is screwed onto one side of the vertical surface of the support plate 32. A lifting pallet 34 is screwed onto the telescopic end of the pallet cylinder 33. The lifting pallet 34 is arranged parallel to the support plate 32 and is preferably located on the front side of the support plate 32 in the conveying direction. Furthermore, the end face of the lifting plate 34 intersects with the end face of the support plate 32. In fact, compared to the end face of the support plate 32, the end face of the lifting plate 34 is recessed downwards by a certain distance, for example, 20cm. Therefore, there is a certain distance, for example, 75cm, between the end face of the lifting plate 34 and the backing block 612. The lifting plate 34 is suitable for supporting the stepped surface of the door frame to improve the stability of the fixation.

[0029] The slotting mechanism 40 includes multiple processing units 42, which can be any type of existing technology. In this embodiment, four processing units 42 are mounted on the pallet beam 41, and each processing unit 42 includes two processing heads 421. The processing heads 421 can be any type of existing technology, such as including a spindle, a slotting drill bit, a drilling drive motor, a cover, and a dust cover.

[0030] Specifically, multiple machining units 42 are mounted via a pallet beam 41. The pallet beam 41 is a metal beam with a certain length along the x-axis. Simultaneously, the three-axis system includes an axial drive unit 51 capable of driving the pallet beam 41 to move along the x-axis and a lateral drive unit 52 capable of moving along the y-axis. Thus, the three-axis system can drive multiple machining units 42 on the pallet beam 41 to move synchronously along the x-axis and / or the y-axis. Applying this technical solution offers higher work efficiency compared to the existing single-head, multiple-processing methods. Furthermore, compared to the existing multi-head, individually adjustable methods, it also improves work efficiency to a certain extent.

[0031] In this embodiment, both the axial drive unit 51 and the transverse drive unit 52 are servo drive units, such as a gear and rack unit driven by a servo motor, or a ball screw driven by a servo motor. For example, the pallet beam 41 is connected to the transverse drive unit 52 through the first-layer mounting platform, so that it can move laterally (y) under the drive of the transverse drive unit 52; the first-layer mounting platform and the transverse drive unit 52 are connected to the axial drive unit 51 through the second-layer mounting platform, so that it can move longitudinally (x) under the drive of the axial drive unit 51, and the axial drive unit 51 is fixedly mounted on one side of the frame 10.

[0032] Furthermore, the spacing between hinge holes or other slots may differ between different product door frames, so the three-axis system also includes an axial sub-drive unit 53 capable of driving the machining unit 42 to move along the axial x-axis. The axial sub-drive unit 53 is any servo-driven unit in the prior art, screwed onto the pallet beam 41. For example, it includes a rack and guide rail screwed onto the pallet beam 41, as well as multiple sets (four sets in this embodiment) of gears driven by servo motors that mesh with the rack, and guide blocks that mesh with the guide rails. The machining unit 42 is screwed onto the gear seat and guide blocks via a first mounting base. Thus, each machining unit 42 can independently adjust its axial x-axis machining position within a certain range; in other words, the spacing between adjacent machining units 42 can be adjusted according to the spacing between the hinge holes or other slots.

[0033] Furthermore, in some cases, the drilling depth of hinge holes or other slots at different locations on the door frame may vary, and the thickness at different drilling positions on the door frame may also have errors. Therefore, the three-axis system also includes a longitudinal drive unit 54 capable of driving the machining unit 42 to move up and down along the longitudinal direction z. The longitudinal drive unit 54 is any servo-driven unit in the prior art, screwed onto the first mounting base. For example, it includes a lead screw and guide rail screwed onto the first mounting base, as well as rollers driven by a servo motor that cooperate with a rack and pinion, and guide blocks that cooperate with the guide rail. The machining unit 42 is screwed onto the second mounting base and the guide blocks. Thus, each set of machining units 42 can independently adjust its longitudinal z machining position within a certain range. In other words, the height of adjacent machining units 42 can be adjusted according to the depth of the hinge holes or other slots and the thickness at different drilling positions on the door frame.

[0034] In addition, in some cases, the drilling depth of hinge holes or other slots at different locations on the door frame may vary significantly. Therefore, the three-axis system also includes a longitudinal sub-drive unit 55 that can drive the machining head 421 to move up and down longitudinally (z) and a thickness measuring unit 56 that moves with the machining head 421. The longitudinal sub-drive unit 55 is any type of cylinder drive unit in the prior art. It is screwed onto the second mounting base and includes, for example, a drive cylinder and a guide rail screwed onto the second mounting base, as well as a guide block that cooperates with the guide rail. The cover of the machining head 421 is screwed onto the telescopic end of the drive cylinder and the guide block, respectively. Thus, each set of machining heads 421 can independently adjust its machining depth. This is particularly suitable for cases with larger drilling depths. First, drilling is performed at the height and machining depth determined by the longitudinal drive unit 54, and then the drill bit height is lowered by the longitudinal sub-drive unit 55 for individual compensation before drilling is performed again.

[0035] The thickness measuring unit 56 is any of the prior art, preferably a limit switch. The thickness measuring unit 56 is screwed onto the cover of the machining head 421.

[0036] The clamping mechanism 60 includes a movable clamping unit 61 located on the same side as the slotting mechanism 40 and a fixed clamping unit 62 located on the opposite side of the slotting mechanism 40. The movable clamping unit 61 can move along the axial x-axis under the drive of the avoidance unit 63, thereby avoiding the drilling position of the machining head 421. In this embodiment, four sets of movable clamping units 61 are provided.

[0037] Specifically, the avoidance unit 63 is any servo-driven unit in the prior art, such as including a rack and guide rail screwed onto the frame 10, four sets of gears that cooperate with the rack and are driven by a servo motor or manually (e.g., a rotary handle), and guide blocks that cooperate with the guide rail. The mounting base 611 is screwed onto the gear seat and guide blocks.

[0038] A backing block 612 and a clamping drive 613 are screwed onto the mounting base 611. The clamping drive 613 is a pneumatic rod capable of longitudinal extension (z-axis). A pressure foot 614 is screwed onto the extension end of the clamping drive 613. The pressure foot 614, in cooperation with the support plate 32 and the lifting plate 34, can stably clamp the workpiece being processed. The fixed clamping unit 62 includes a transverse pneumatic rod screwed onto the worktable 30 and a clamping block screwed onto the extension end of the transverse pneumatic rod. Through cooperation with the backing block 612, transverse (y-axis) clamping can be achieved. Of course, those skilled in the art will know that the stroke of the transverse pneumatic rod is relatively long, so a telescopic guide should be provided, such as a fixed guide sleeve and a guide shaft that cooperates with the guide sleeve. One end of the guide shaft is screwed to the clamping block.

[0039] Furthermore, considering that the width of the lifting conveyor mechanism 20 is smaller than the width of the worktable 30, and the width of the workpiece being processed (i.e., the door frame) is also relatively narrow, there is a possibility that the workpiece being processed may detach from the working area of ​​the conveying rollers of the lifting conveyor mechanism 20 after being pressed laterally (y). Therefore, the movable clamping unit 61 also includes a pushing component 615 disposed on the mounting base 611. The pushing component 615 is capable of pushing material laterally (y). The pushing component 615 is preferably a pushing air rod.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A door frame slotting machining center, comprising a frame (10), a control system (70), and a lifting and conveying mechanism (20), a worktable (30), a slotting machining mechanism (40) located on one side of the worktable (30), a three-axis system, and a clamping mechanism (60) mounted on the frame (10), wherein the lifting and conveying mechanism is capable of conveying along the axial direction (x) and lifting along the longitudinal direction (z), characterized in that, The slotting mechanism (40) includes a pallet beam (41) and multiple processing units (42) mounted on the pallet beam (41). The three-axis system includes an axial drive unit (51) capable of driving the pallet beam (41) to move along the axial direction (x) and a transverse drive unit (52) capable of moving along the transverse direction (y).

2. The door frame slot machining center according to claim 1, characterized in that, The triaxial system also includes an axial sub-drive unit (53) capable of driving the machining unit (42) to move along the axial direction (x).

3. The door frame slot machining center according to claim 1, characterized in that, The three-axis system also includes a longitudinal drive unit (54) capable of driving the machining unit (42) to move up and down along the longitudinal direction (z).

4. The door frame slot machining center according to claim 3, characterized in that, The processing unit (42) includes multiple processing heads (421), and the three-axis system also includes a longitudinal sub-drive unit (55) capable of driving the processing heads (421) to move up and down along the longitudinal direction (z) and a thickness measuring unit (56) capable of moving with the processing heads (421).

5. The door frame slot machining center according to claim 4, characterized in that, The longitudinal drive unit (54) is a servo drive unit, and the longitudinal sub-drive unit (55) is a cylinder drive unit.

6. The door frame hole and groove machining center according to claim 1, characterized in that, The clamping mechanism (60) includes a movable clamping unit (61) located on the same side as the slot processing mechanism (40) and a fixed clamping unit (62) located on the opposite side of the slot processing mechanism (40). The movable clamping unit (61) can move along the axial direction (x) under the drive of the avoidance unit (63).

7. The door frame hole and groove machining center according to claim 6, characterized in that, The movable clamping unit (61) includes a mounting base (611) fixedly connected to the avoidance unit (63). The mounting base (611) is provided with a backing block (612) and a clamping drive (613). The telescopic end of the clamping drive (613) is provided with a pressure foot (614). The fixed clamping unit (62) cooperates with the backing block (612) to achieve lateral (y) clamping.

8. The door frame slot machining center according to claim 7, characterized in that, The movable clamping unit (61) further includes a pushing component (615) disposed on the mounting base (611), the pushing component (615) being capable of pushing material in the transverse (y) direction.

9. The door frame hole and groove machining center according to claim 1, characterized in that, The workbench (30) includes a support frame (31) and a plurality of support plates (32) fixedly installed through the support frame (31). The support plates (32) are arranged in the transverse direction (y), and the plurality of support plates (32) are arranged at intervals in the axial direction (x). A pallet cylinder (33) is provided on one side of the support plate (32), and a lifting pallet (34) is provided at the telescopic end of the pallet cylinder (33). There is a gap between the end face of the lifting pallet (34) and the backing block (612).

Images