A precise drilling depth adjusting device for sheet metal processing

Abstract

The utility model relates to a kind of precision drilling depth adjusting equipment for sheet metal machining, belong to the technical field of drilling.The precision drilling depth adjusting equipment for sheet metal machining, including: processing platform and drilling machine, the top end of the processing platform is slidably connected with moving frame;In the scheme, the drilling depth of the downward movement of drilling machine is limited by moving plate, so that drilling machine is moved in place while avoiding excessive movement during drilling process, when the position of moving plate is adjusted, the position of moving plate is preliminarily adjusted by moving frame driving moving plate to move downward, and under the action of pinion, cogwheel, screw rod and moving rod, it is beneficial to further fine adjustment of the position of moving plate, the precision of moving plate and the corresponding scale line alignment is improved by coarse adjustment and fine adjustment cooperation, the precision of moving plate to limit the downward movement distance of drilling machine is guaranteed, to avoid depth deviation during drilling machine punching process, to ensure the punching effect.

Description

Technical Field

[0001] This utility model relates to the field of drilling technology, and in particular to a precision drilling depth adjustment device for sheet metal processing. Background Technology

[0002] Drilling in sheet metal processing is a process of cutting round holes in a metal sheet using a rotating drill bit. It is a key step in sheet metal processing, and precise round holes are created in the metal sheet to meet assembly, connection, or functional requirements.

[0003] By driving the screw to rotate using a servo motor, the rotational motion is converted into linear feed of the drill bit. In existing technology, when it is necessary to adjust the drilling depth to meet the drilling requirements of different depths, the linear feed distance of the drill bit can be controlled by adjusting the number of rotations of the screw, thereby achieving the purpose of adjusting the drilling depth. However, due to the axial clearance of the screw, there will be a deviation between the number of rotations of the screw and the actual displacement, which will reduce the accuracy of the drilling depth and thus affect the drilling effect. Utility Model Content

[0004] Therefore, it is necessary to provide a precision drilling depth adjustment device for sheet metal processing to address the problem that the axial clearance of the screw causes a deviation between the number of screw rotations and the actual displacement, resulting in reduced drilling depth accuracy and thus affecting the drilling effect.

[0005] Includes: a processing table and a drilling machine, wherein a movable frame is slidably connected to the top of the processing table, a mounting frame is slidably connected to one side of the movable frame, an electric sliding plate is slidably connected to the inner wall of the mounting frame, and the electric sliding plate is mounted on the drilling machine; The adjustment mechanism includes a movable frame and a movable plate slidably connected to one side of the mounting frame. One end of the movable plate extends into the mounting frame. A scale line is provided on one side of the mounting frame. A small gear and a large gear are rotatably connected to the inner wall of the movable frame. A screw is fixedly connected to the bottom end of the large gear. A movable rod is threadedly connected to the surface of the screw. One end of the movable rod is fixedly connected to one side of the movable plate.

[0006] In one embodiment, the adjusting mechanism further includes a fixing plate fixedly connected to one side of the mounting frame. A plurality of evenly distributed wedges are fixedly connected to one side of the fixing plate. A locking rod is slidably connected to the lower end of the inner wall of the moving frame, and a threaded rod is threadedly connected to the lower end of the inner wall of the moving frame. One end of the threaded rod is rotatably connected to one end of the locking rod. The locking grooves formed by the wedges and the action of the locking rod facilitate the fixing of the moving position of the moving frame.

[0007] In one embodiment, the end of the locking rod away from the threaded rod is inclined, and the vertical cross-section of the wedge is a right-angled triangle. This ensures stability when the locking rod and the wedge engage in the groove.

[0008] In one embodiment, a scale is fixedly connected to the end of the movable plate away from the movable rod, and a magnifying glass is mounted on the bottom end of the scale. This allows the operator to better observe the scale corresponding to the movable plate during adjustment.

[0009] In one embodiment, the tip of the pinion extends through the movable frame and is fixedly connected to a knob. The surface of the knob has multiple protrusions arranged in a ring. This facilitates easier operation by the operator to drive the pinion.

[0010] In one embodiment, a round rod is fixedly connected to the top of the movable frame, a pressure plate is slidably connected to the surface of the round rod, and a nut is threaded onto the upper end of the surface of the round rod. This facilitates the tightening and fixing of the knob, ensuring the stability of the pinion and gear during operation.

[0011] In one embodiment, the upper end of the round rod is threaded, and the round rod and the nut are fixedly connected by the thread. This facilitates tightening the nut and the round rod to secure the pressure plate.

[0012] In one embodiment, a contact pad, which is made of rubber, is fixedly connected to the top of the knob. This increases the frictional force when the pressure plate presses against the knob, thereby enhancing the stability of the knob when pressed against the pressure plate. Beneficial effects

[0013] The aforementioned adjustment mechanism limits the drilling depth of the drilling machine by using a moving plate. This ensures that the drilling machine moves into position during drilling while avoiding excessive movement. When adjusting the position of the moving plate, the moving frame drives the moving plate downward to make an initial adjustment. The small gear, large gear, screw, and moving rod facilitate further fine adjustment of the moving plate's position. Through the cooperation of coarse and fine adjustments, the accuracy of the alignment between the moving plate and the corresponding scale line is improved. This ensures the accuracy of the moving plate in limiting the downward movement distance of the drilling machine, preventing depth deviation during drilling and guaranteeing the drilling effect. 2. In the above-mentioned adjustment mechanism, the groove and rod formed by multiple wedges help to fix the moving position of the moving frame, and the pressure plate, nut and round rod help to limit the rotation of the knob, ensuring the stability of the moving plate after the position adjustment is completed, thereby ensuring the stability of the drilling depth of the drilling machine. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the adjustment mechanism structure of this utility model; Figure 3 This is an exploded view of the drilling machine and electric sliding plate of this utility model; Figure 4 This is an exploded view of the movable plate and movable block of this utility model; Figure 5 This is a cross-sectional view of the movable frame of this utility model.

[0016] Figure label: 100. Processing table; 200. Moving frame; 300. Mounting frame; 400. Electric sliding plate; 500. Drilling machine; 600. Adjustment mechanism; 610. Moving frame; 611. Small gear; 612. Large gear; 613. Moving rod; 614. Knob; 615. Screw; 620. Moving plate; 621. Ruler; 630. Scale line; 640. Clamping rod; 650. Fixing plate; 651. Wedge; 660. Round rod; 661. Pressure plate; 662. Nut; 670. Magnifying glass; 680. Threaded rod. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The following is combined Figures 1-5 This invention describes a precision drilling depth adjustment device for sheet metal processing.

[0019] In one embodiment, a precision drilling depth adjustment device for sheet metal processing includes: a processing table 100 and a drilling machine 500. A movable frame 200 is slidably connected to the top of the processing table 100, and a mounting frame 300 is slidably connected to one side of the movable frame 200. An electric sliding plate 400 is slidably connected to the inner wall of the mounting frame 300, and the electric sliding plate 400 is mounted on the drilling machine 500. The adjustment mechanism 600 includes a movable frame 610 and a movable plate 620 slidably connected to one side of the mounting frame 300. One end of the movable plate 620 extends into the mounting frame 300. A scale line 630 is provided on one side of the mounting frame 300. A small gear 611 and a large gear 612 are rotatably connected to the inner wall of the movable frame 610. A screw 615 is fixedly connected to the bottom end of the large gear 612. A movable rod 613 is threadedly connected to the surface of the screw 615. One end of the movable rod 613 is fixedly connected to one side of the movable plate 620.

[0020] In this embodiment, in the initial state, the bottom end of the electric sliding plate 400 is attached to the bottom end of the movable plate 620, and a sliding groove matching the movable plate 620 is provided on one side of the mounting frame 300. The surface of the movable plate 620 is slidably connected to the inner wall of the sliding groove. It should be noted that a motor is fixedly connected to the top of the mounting frame 300. The output shaft of the motor passes through the mounting frame 300 and is fixedly connected to a lead screw. The inner wall of the electric slide plate 400 is threadedly connected to the surface of the lead screw. When the motor is started by the controller, the output shaft of the motor drives the lead screw to rotate, thereby driving the electric slide plate 400 to move. When the electric slide plate 400 contacts the top of the moving plate 620 during its downward movement, the electric slide plate 400 cannot continue to move downward. The movable frame 200 is mounted on an electric slide rail at the top of the processing table 100, and the mounting frame 300 is mounted on an electric slide rail on one side of the movable frame 200. The movable frame 200 and the mounting frame 300 can be driven to move horizontally via the electric slide rail. The electric slide rail is a relatively mature mechanical component in the prior art, therefore, it is not described in detail in this solution.

[0021] like Figure 2 , Figure 3 and Figure 4 As shown, the adjustment mechanism 600 also includes a fixing plate 650 fixedly connected to one side of the mounting frame 300. A plurality of evenly distributed wedges 651 are fixedly connected to one side of the fixing plate 650. A locking rod 640 is slidably connected to the lower end of the inner wall of the moving frame 610, and a threaded rod 680 is threadedly connected to the lower end of the inner wall of the moving frame 610. One end of the threaded rod 680 is rotatably connected to one end of the locking rod 640. The end of the locking rod 640 away from the threaded rod 680 is inclined, and the vertical cross-section of the wedge 651 is a right-angled triangle.

[0022] In this embodiment, the tilt angle of one end of the locking rod 640 is the same as the tilt angle of the inclined surface of the wedge block 651, and a groove is formed between two adjacent wedge blocks 651. When one end of the inclined surface of the locking rod 640 enters the groove, the surface of the locking rod 640 fits against the surface of the wedge block 651, thereby achieving locking.

[0023] The vertical cross-section of the lever 640 is a rectangular rod. The lower end of the inner wall of the moving frame 610 is provided with a moving groove that matches the lever 640. The surface of the lever 640 fits against the inner wall of the moving groove. Therefore, when the threaded rod 680 is rotated to drive the lever 640 to move, the lever 640 will not rotate during the movement.

[0024] like Figure 4 As shown, a scale 621 is fixedly connected to the end of the movable plate 620 away from the movable rod 613, and a magnifying glass 670 is installed at the bottom of the scale 621.

[0025] In this embodiment, the top of the scale 621 is flush with the top of the moving plate 620. Therefore, when the scale 621 is aligned with the corresponding scale line 630, the moving plate 620 is aligned with the corresponding scale line 630.

[0026] like Figure 5 As shown, the top of the pinion 611 extends through the movable frame 610 and is fixedly connected to a knob 614. The surface of the knob 614 is fixedly connected with multiple protrusions arranged in a ring.

[0027] In this embodiment, the bottom end of the knob 614 is attached to the top end of the movable frame 610, and the operator can drive the pinion 611 to rotate by rotating the knob 614.

[0028] like Figure 5 As shown, a round rod 660 is fixedly connected to the top of the movable frame 610, a pressure plate 661 is slidably connected to the surface of the round rod 660, and a nut 662 is threadedly connected to the upper end of the surface of the round rod 660.

[0029] In this embodiment, in the initial state, the nut 662 is tightened with the round rod 660, and the pressure plate 661 presses against the knob 614. When it is necessary to rotate the knob 614, the threaded connection between the nut 662 and the round rod 660 is released, thereby releasing the pressure of the nut 662 on the pressure plate 661. At this time, the pressure plate 661 is in an active state, thereby releasing the pressure on the knob 614, and the knob 614 can be rotated. When it is necessary to tighten the knob 614 again, the pressure plate 661 is placed on top of the knob 614, and the nut 662 is tightened with the round rod 660.

[0030] like Figure 5As shown, the upper end of the surface of the round rod 660 is provided with threads, and the round rod 660 and the nut 662 are fixedly connected by the threads. When the pressure plate 661 is placed above the knob 614, the nut 662 is tightened by screwing it onto the round rod 660 through the threads to press the pressure plate 661.

[0031] like Figure 5 As shown, a contact pad is fixedly connected to the top of the knob 614, and the contact pad is a rubber component. When the pressure plate 661 presses against the knob 614, the bottom end of the pressure plate 661 contacts and presses against the contact pad, thereby increasing the frictional force of the pressure plate 661 pressing against the knob 614.

[0032] Working principle: Based on the required drilling depth, the required downward movement distance of the drilling machine 500 is determined. The position of the moving plate 620 is adjusted according to this distance, ensuring its top is flush with the corresponding scale line 630. While adjusting the position of the moving plate 620, the operator rotates the threaded rod 680, causing the locking rod 640 to move away from the wedge block 651, releasing the contact between the locking rod 640 and the wedge block 651. At this time, the threaded rod 680 drives the moving frame 610 downwards, and under the action of the moving rod 613, the moving plate 620 moves downwards synchronously. When the moving plate 620 reaches its approximate position, the threaded rod 680 is rotated again, pushing the locking rod 640 towards the wedge block 651, so that the locking rod 640... The corresponding wedge 651 forms a slot to engage, thereby fixing the position of the moving frame 610 and the moving plate 620. At this time, the operator releases the pressure plate 661 from pressing the knob 614 and rotates the knob 614 to drive the pinion 611 to rotate. Under the action of the gear ratio of the pinion 611 and the large gear 612, the rotation of the pinion 611 will drive the large gear 612 to drive the screw 615 to rotate slowly, thereby driving the moving rod 613 to drive the moving plate 620 to move in a decelerated manner in the vertical direction and align with the corresponding scale line 630. When the scale 621 is aligned with the corresponding scale line 630, the moving plate 620 moves into place, and the pressure plate 661 is used to press the knob 614 again, thus completing the adjustment of the position of the moving plate 620. After the position of the moving plate 620 is adjusted, the electric sliding plate 400 drives the drilling machine 500 to move downward to drill. When the electric sliding plate 400 is in contact with the top of the moving plate 620, the electric sliding plate 400 cannot move downward. At this time, the drilling depth of the electric sliding plate 400 driving the drilling machine 500 downward is the required drilling depth.

[0033] It should be noted that the motors and other components mentioned above are all devices with relatively mature existing technologies. The specific model can be selected according to actual needs. The motor can be powered by a built-in power supply or by AC power. The specific power supply method should be selected according to the situation, and will not be elaborated here.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A precision drilling depth adjustment device for sheet metal processing, characterized in that, include: A processing table (100) and a drilling machine (500) are provided. A movable frame (200) is slidably connected to the top of the processing table (100). A mounting frame (300) is slidably connected to one side of the movable frame (200). An electric sliding plate (400) is slidably connected to the inner wall of the mounting frame (300). The electric sliding plate (400) is installed with the drilling machine (500). Adjustment mechanism (600) includes a movable frame (610) and a movable plate (620) slidably connected to one side of the mounting frame (300). One end of the movable plate (620) extends into the mounting frame (300). A scale line (630) is provided on one side of the mounting frame (300). A small gear (611) and a large gear (612) are rotatably connected to the inner wall of the movable frame (610). A screw (615) is fixedly connected to the bottom end of the large gear (612). A movable rod (613) is threadedly connected to the surface of the screw (615). One end of the movable rod (613) is fixedly connected to one side of the movable plate (620).

2. The precision drilling depth adjustment device for sheet metal processing according to claim 1, characterized in that, The adjustment mechanism (600) further includes a fixing plate (650) fixedly connected to one side of the mounting frame (300). A plurality of evenly distributed wedges (651) are fixedly connected to one side of the fixing plate (650). A locking rod (640) is slidably connected to the lower end of the inner wall of the moving frame (610). A threaded rod (680) is threadedly connected to the lower end of the inner wall of the moving frame (610). One end of the threaded rod (680) is rotatably connected to one end of the locking rod (640).

3. The precision drilling depth adjustment device for sheet metal processing according to claim 2, characterized in that, The end of the lever (640) away from the threaded rod (680) is inclined, and the vertical cross section of the wedge (651) is a right triangle.

4. The precision drilling depth adjustment device for sheet metal processing according to claim 1, characterized in that, A ruler (621) is fixedly connected to one end of the movable plate (620) away from the movable rod (613), and a magnifying glass (670) is installed at the bottom of the ruler (621).

5. The precision drilling depth adjustment device for sheet metal processing according to claim 1, characterized in that, The top of the pinion (611) extends through the movable frame (610) and is fixedly connected to a knob (614). The surface of the knob (614) is fixedly connected with a plurality of protrusions arranged in a ring.

6. The precision drilling depth adjustment device for sheet metal processing according to claim 1, characterized in that, A round rod (660) is fixedly connected to the top of the movable frame (610), a pressure plate (661) is slidably connected to the surface of the round rod (660), and a nut (662) is threadedly connected to the upper end of the surface of the round rod (660).

7. The precision drilling depth adjustment device for sheet metal processing according to claim 6, characterized in that, The upper surface of the round rod (660) is provided with threads, and the round rod (660) and the nut (662) are fixedly connected by the threads.

8. The precision drilling depth adjustment device for sheet metal processing according to claim 5, characterized in that, The top of the knob (614) is fixedly connected to a contact pad, and the contact pad is a rubber component.

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