Hole machining device for arc-shaped workpiece

Abstract

The invention discloses a hole machining device for an arc-shaped workpiece. The device comprises a fixing unit, and the fixing unit comprises a positioning bottom plate used for placing a to-be-machined workpiece; the supporting plate is used for supporting the positioning bottom plate; the fixing plate is fixedly connected with the supporting plate; a base of the radial drilling machine is used for fixedly placing the fixing unit; a main shaft of the radial drilling machine is connected with the drill chuck; when the drill chuck is connected with the alignment shaft, the alignment shaft is used for aligning a bottom hole in a workpiece to be machined, and when the drill chuck is connected with a screw tap, the screw tap is used for machining the bottom hole into a threaded hole. By means of the device, the workpiece to be machined does not need to be manually fixed, operation and machining can be directly conducted by one person, the machining efficiency is improved, and manpower is saved.

Description

Technical Field

[0001] The invention relates to the field of machining technology, in particular to a hole machining device for an arc-shaped workpiece. Background Art

[0002] The key and important part of a product is trumpet-shaped, which is a typical multi-dimensional arc-shaped special-shaped part. On its trumpet-shaped multi-dimensional outer arc surface, 16 threaded holes perpendicular to the arc surface need to be tapped by the fitter. Since the fitter cannot align during tapping, it cannot be processed directly on the equipment. Therefore, the process arrangement is that the machining center will make the bottom hole on the workpiece surface, and then use a tap to align the thread. The fitter process will perform tapping according to the thread aligned by the machining center.

[0003] The fitter processed 16 surface threaded holes, which increased the workload of the machining center. During the tapping process, the parts were not suitable for clamping. One person had to hold the parts while another processor performed the tapping process, which resulted in low processing efficiency, seriously affecting the overall processing efficiency of the workshop.

[0004] In view of the problem that parts are not easy to clamp during tapping by fitters in the prior art, one person needs to hold the parts while another worker performs tapping, resulting in low processing efficiency, no effective solution has been proposed so far. Summary of the invention

[0005] The embodiment of the present invention provides a hole processing device for arc-shaped workpieces to solve the problem in the prior art that parts are not suitable for clamping during tapping processing by fitters, one person needs to hold the parts while another worker performs tapping processing, resulting in low processing efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides a hole processing device for an arc-shaped workpiece, the device comprising: a fixing unit, the fixing unit comprising: a positioning base plate for placing the workpiece to be processed; a support plate for supporting the positioning base plate; a fixing plate, the fixing plate being fixedly connected to the support plate; a radial drilling machine, the base of the radial drilling machine being used for fixing the fixing unit; the spindle of the radial drilling machine being connected to a drill chuck; when the drill chuck is connected to an aligning shaft, the aligning shaft is used to align the bottom hole on the workpiece to be processed, and when the drill chuck is connected to a tap, the tap is used to process the bottom hole into a threaded hole.

[0007] Optionally, a groove is provided on the positioning base plate for placing the workpiece to be processed; the workpiece to be processed can rotate along the groove around the center of the positioning base plate.

[0008] Optionally, the support plate and the positioning base plate are fixedly connected by a first connecting screw.

[0009] Optionally, the fixing plate and the supporting plate are fixedly connected via a second connecting screw.

[0010] Optionally, the fixing unit is fixed to the base of the radial drilling machine by means of a fastening connecting plate and fastening screws.

[0011] Optionally, a T-slot is provided on the base of the radial drilling machine for inserting and fixing the fastening connecting plate.

[0012] Optionally, the fastening connection plate is fixedly connected to the fixing plate via the fastening screws.

[0013] Optionally, the radial drilling machine further includes: a driving device for driving the main shaft to move up and down.

[0014] Optionally, the workpiece to be processed is a truncated cone structure; the bottom holes are arranged in two groups, each group is arranged with a plurality of bottom holes, and all the bottom holes in each group form a circle around the outer surface of the workpiece to be processed.

[0015] Beneficial effects of the present invention:

[0016] The present invention provides a hole processing device for arc-shaped workpieces, the device comprising: a fixing unit, the fixing unit comprising: a positioning base plate for placing the workpiece to be processed; a support plate for supporting the positioning base plate; a fixing plate, the fixing plate being fixedly connected to the support plate; a radial drilling machine, the base of the radial drilling machine being used to fix the fixing unit; the spindle of the radial drilling machine being connected to a drill chuck; when the drill chuck is connected to an alignment shaft, the alignment shaft is used to align the bottom hole on the workpiece to be processed, and when the drill chuck is connected to a tap, the tap is used to process the bottom hole into a threaded hole. Through the device, there is no need to manually fix the workpiece to be processed, and one person can directly operate and process it, thereby improving processing efficiency and saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereoscopic diagram of a hole processing device for a curved workpiece provided by an embodiment of the present invention;

[0018] Figure 2 It is a front view of a hole processing device for an arc-shaped workpiece provided by an embodiment of the present invention;

[0019] Figure 3 is a top view of a positioning base plate provided by an embodiment of the present invention;

[0020] Figure 4 is a front view of a support plate provided by an embodiment of the present invention;

[0021] Figure 5 is a top view of a fixing plate provided by an embodiment of the present invention;

[0022] Figure 6 It is a right side view of the fixing plate provided in the embodiment of the present invention.

[0023] Explanation of symbols:

[0024] Positioning base plate-1, supporting plate-2, fixing plate-3, base-4, spindle-5, drill chuck-6, tap-7, first connecting screw-8, second connecting screw-9, fastening connecting plate-10, fastening screw-11, workpiece to be processed-12. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The key and important part of a product is trumpet-shaped, which is a typical multi-dimensional arc-shaped special-shaped part. On its trumpet-shaped multi-dimensional outer arc surface, 16 threaded holes perpendicular to the arc surface need to be tapped by the fitter. Since the fitter cannot align during tapping, it cannot be processed directly on the equipment. Therefore, the process arrangement is that after the machining center makes the bottom hole on the workpiece surface, the tap 7 is used to lead the thread. The fitter process performs tapping according to the thread led by the machining center.

[0027] The fitter processed 16 surface threaded holes, which increased the workload of the machining center. During the tapping process, the parts were not suitable for clamping. One person had to hold the parts while another processor performed the tapping process, which resulted in low processing efficiency, seriously affecting the overall processing efficiency of the workshop.

[0028] Therefore, the present invention provides a hole processing device for arc-shaped workpieces, which can directly fix the workpiece 12 to be processed without manually fixing the workpiece 12 to be processed. Figure 1 It is a stereoscopic diagram of a hole processing device for a curved workpiece provided by an embodiment of the present invention; Figure 2 1 is a front view of a hole processing device for an arc-shaped workpiece provided by an embodiment of the present invention; Figure 1 and Figure 2 As shown, the device comprises:

[0029] 1. A fixing unit, the fixing unit comprising: a positioning base plate 1, used for placing the workpiece 12 to be processed; a support plate 2, used for supporting the positioning base plate 1; a fixing plate 3, the fixing plate 3 is fixedly connected to the support plate 2;

[0030] Specifically, Figure 3is a top view of the positioning base plate 1 provided in an embodiment of the present invention, as shown Figure 3 As shown, the positioning base plate 1 is a circular ring structure, and a groove is provided on the positioning base plate 1 for placing the workpiece 12 to be processed; the workpiece 12 to be processed is a truncated cone structure; after the workpiece 12 to be processed is placed on the positioning base plate 1, it can rotate around the center of the positioning base plate 1 along the groove.

[0031] Figure 4 is a front view of the support plate 2 provided in an embodiment of the present invention, such as Figure 4 As shown, the support plate 2 is a trapezoidal structure, and the connection between it and the positioning base plate 1 is a bevel, and the connection between it and the fixing plate 3 (such as Figure 4 The lower left corner of the figure is provided with a gap for the fixing plate 3 to pass through; the support plate 2 is fixedly connected to the positioning base plate 1 by a first connecting screw 8, and is used to support the positioning base plate 1. In the present invention, two first connecting screws 8 are provided.

[0032] Figure 5 is a top view of the fixing plate 3 provided in an embodiment of the present invention; Figure 6 3 is a right side view of the fixing plate 3 provided in the embodiment of the present invention. Figure 5 and Figure 6 As shown, the fixing plate 3 is rectangular, and a downward groove is provided in the middle thereof; the fixing plate 3 is fixedly connected to the support plate 2; specifically, the middle portion of the fixing plate 3 is fixedly connected to the support plate 2 via a second connecting screw 9. In the present invention, two second connecting screws 9 are provided.

[0033] In the present invention, a plurality of bottom holes, specifically 16 bottom holes, are arranged on the side (arc surface) of the workpiece 12 to be processed. The 16 bottom holes are divided into two groups, each group has 8 bottom holes, and the 8 bottom holes in the first group are arranged at equal intervals and form a circle with a point on the central axis of the workpiece 12 to be processed as the center of the circle; the 8 bottom holes in the second group are arranged at equal intervals and form a circle with another point on the central axis of the workpiece 12 to be processed as the center of the circle. Further, the 8 bottom holes in the first group correspond to the 8 bottom holes in the second group one by one.

[0034] 2. A radial drilling machine, wherein the base 4 of the radial drilling machine is used for fixing the fixing unit; the spindle 5 of the radial drilling machine is connected to a drill chuck 6; when the drill chuck 6 is connected to an alignment axis, the alignment axis is used to align a bottom hole on a workpiece 12 to be processed; and when the drill chuck 6 is connected to a tap 7, the tap 7 is used to process the bottom hole into a threaded hole.

[0035] Specifically, the radial drilling machine includes: a base 4, an inner column, an outer column, a rocker arm, and a spindle box 5;

[0036] The inner column is fixed to one end of the base 4, and an outer column is sleeved outside the inner column, and the outer column can rotate 360 ​​degrees around the inner column. One end of the rocker arm is a sleeve, which is sleeved on the outer column to move up and down, and the rocker arm cannot rotate around the outer column, but can only rotate around the inner column together with the outer column.

[0037] The spindle 5 box is a composite component, including: spindle 5, drive device and hand wheel. The spindle 5 box is installed on the horizontal guide rail of the rocker arm, and can be operated by the hand wheel to move along the rocker arm on the horizontal guide rail; the drive device is used to drive the spindle 5 to move up and down.

[0038] In the present invention, the base 4 of the radial drilling machine is used to fix the fixing unit; specifically, the fixing unit is fixed to the base 4 of the radial drilling machine by a fastening connecting plate 10 and a fastening screw 11. A T-slot is provided on the base 4 of the radial drilling machine for inserting and fixing the fastening connecting plate 10. The fastening connecting plate 10 is a T-shaped structure, which is adapted to the T-slot. The fastening connecting plate 10 is fixedly connected to the fixing plate 3 by the fastening screw 11. In the present invention, two fastening screws 11 are provided, which respectively fix the fastening connecting plate 10 to the two ends of the fixing plate 3.

[0039] It should be noted that the present invention does not limit the number of the first connecting screws 8 , the second connecting screws 9 and the fastening screws 11 mentioned above.

[0040] The spindle 5 of the radial drilling machine is connected to the drill chuck 6; during specific operation, the drill chuck 6 is first connected to the alignment shaft, and the alignment shaft is used to align the bottom hole on the workpiece 12 to be processed, that is, the alignment shaft can be inserted into the bottom hole of the workpiece 12 to be processed. At this time, the radial arm of the radial drilling machine is locked so that it no longer moves, the drill chuck 6 releases the alignment shaft, and the drill chuck 6 is connected to the tap 7, and the tap 7 is used to process the bottom hole into a threaded hole.

[0041] The working process of the present invention is as follows:

[0042] 1. The fixing plate 3 is fixedly connected to the supporting plate 2 by the second connecting screws 9;

[0043] 2. The support plate 2 is fixedly connected to the positioning base plate 1 by means of the first connecting screws 8;

[0044] 3. Place the fixing unit on the base 4 of the radial drilling machine;

[0045] 4. Insert the fastening connecting plate 10 into the T-slot fixed to the base 4;

[0046] 5. Fix the fixing plate 3 and the fastening connecting plate 10 by fastening screws 11;

[0047] 6. Load the workpiece 12 to be processed into the positioning base plate 1;

[0048] 7. Install the spindle 5 of the radial drilling machine into the drill chuck 6, install the drill chuck 6 into the alignment shaft that has the same diameter as the bottom hole of the workpiece 12 to be processed, and tighten the alignment shaft;

[0049] 8. Insert the alignment shaft into any bottom hole in one of the groups to complete the alignment and lock the rocker arm of the radial drilling machine;

[0050] 9. Loosen the drill chuck 6 to align the axis, install the tap 7 into the drill chuck 6 and tighten it, and drive the spindle 5 up and down through the driving device to tap the bottom hole (i.e., process the bottom hole into a threaded hole);

[0051] 10. Rotate the workpiece 12 to be processed around the positioning base plate 1 to complete the tapping of all bottom holes in the group;

[0052] 11. Follow steps 7-10 again to complete the tapping of all bottom holes in another group of workpiece 12 to be processed.

[0053] Beneficial effects of the present invention:

[0054] The present invention provides a hole processing device for arc-shaped workpieces, the device comprising: a fixing unit, the fixing unit comprising: a positioning base plate 1, used to place the workpiece 12 to be processed; a support plate 2, used to support the positioning base plate 1; a fixing plate 3, the fixing plate 3 is fixedly connected to the support plate 2; a radial drilling machine, the base 4 of the radial drilling machine is used to fix the fixing unit; the spindle 5 of the radial drilling machine is connected to a drill chuck 6; when the drill chuck 6 is connected to an alignment axis, the alignment axis is used to align the bottom hole on the workpiece 12 to be processed, and when the drill chuck 6 is connected to a tap 7, the tap 7 is used to process the bottom hole into a threaded hole. Through the device, there is no need to manually fix the workpiece 12 to be processed, and one person can directly operate and process it, which improves the processing efficiency and saves manpower.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hole processing device for arc-shaped workpieces, characterized in that: include: A fixing unit, the fixing unit comprising: a positioning base plate for placing the workpiece to be processed; a support plate for supporting the positioning base plate; a fixing plate, the fixing plate being fixedly connected to the support plate; A radial drilling machine, wherein the base of the radial drilling machine is used for fixing the fixing unit; the spindle of the radial drilling machine is connected to a drill chuck; when the drill chuck is connected to an alignment shaft, the alignment shaft is used for aligning a bottom hole on a workpiece to be processed; when the drill chuck is connected to a tap, the tap is used for processing the bottom hole into a threaded hole.

2. The device according to claim 1, characterized in that: A groove is provided on the positioning base plate for placing the workpiece to be processed; the workpiece to be processed can rotate along the groove around the center of the positioning base plate.

3. The device according to claim 1, characterized in that: The support plate and the positioning base plate are fixedly connected by first connecting screws.

4. The device according to claim 1, characterized in that: The fixing plate and the supporting plate are fixedly connected via second connecting screws.

5. The device according to claim 1, characterized in that: The fixing unit is fixed on the base of the radial drilling machine by means of a fastening connecting plate and fastening screws.

6. The device according to claim 5, characterized in that: A T-shaped slot is provided on the base of the radial drilling machine for inserting and fixing the fastening connecting plate.

7. The device according to claim 6, characterized in that: The fastening connecting plate is fixedly connected to the fixing plate via the fastening screws.

8. The device according to claim 1, characterized in that: The radial drilling machine also includes a driving device for driving the main shaft to move up and down.

9. The device according to claim 1, characterized in that: The workpiece to be processed is a truncated cone structure; the bottom holes are arranged in two groups, each group is provided with a plurality of bottom holes, and all the bottom holes in each group form a circle around the outer surface of the workpiece to be processed.

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