Nest depth control device of automatic drilling robot

Abstract

The invention relates to a dimpling control device of an automatic hole-making robot, which is suitable for accurately controlling the dimpling depth of the automatic hole-making robot in the hole-making and dimpling process. The invention discloses a pit depth control device of an automatic drilling robot. The pit depth control device comprises an equipment shell and a screw rod mechanism, one end of the equipment shell sleeves a pressure angle of the automatic drilling robot, and the other end of the equipment shell is provided with an inner cavity for accommodating the screw rod mechanism; the screw rod mechanism is hollow, one end of the cutter sequentially penetrates through the pressure angle and the screw rod mechanism, the length of the screw rod mechanism relative to the equipment shell is adjusted, and then the length of the cutter extending out of the pit depth control device is adjusted. The method has the following advantages that the hole making and dimpling quality of the robot is improved, the dimpling precision is improved, and the early-stage dimpling depth test cost is reduced.

Description

Technical Field

[0001] The present invention relates to a counterboring control device for an automatic hole-making robot, which is applicable to the precise control of the counterbore depth during the hole-making and counterboring process of the automatic hole-making robot. Background Art

[0002] At present, automatic hole-making systems are increasingly widely used in various fields of aviation. However, due to the weak rigidity characteristics of the surfaces of some hole-making objects, the product deforms when the tool tip contacts the product surface during the hole-making process, resulting in a deviation between the actual counterbore depth and the theoretical counterbore depth. This phenomenon affects the hole-making quality. At the same time, a large number of tests need to be carried out before using the equipment to explore parameters, wasting funds and time, and the resulting parameter results may not necessarily be completely applicable to the product. Summary of the Invention

[0003] The purpose of the present invention is to provide a counterbore depth control device for an automatic hole-making robot to reduce the trial-and-error cost.

[0004] To achieve the above purpose, the present invention adopts the following technical solution: A counterbore depth control device for an automatic hole-making robot, the counterbore depth control device includes an equipment housing and a lead screw mechanism; one end of the equipment housing is sleeved on the pressure angle of the automatic hole-making robot, and the other end is provided with an inner cavity for accommodating the lead screw mechanism; the inside of the lead screw mechanism is hollow, and one end of the tool sequentially passes through the pressure angle and the lead screw mechanism to adjust the length of the lead screw mechanism relative to the equipment housing, thereby adjusting the length of the tool protruding from the counterbore depth control device.

[0005] Preferably, the lead screw mechanism includes a limit head and a boss. The boss is arranged at the end of the equipment housing and can rotate around the axial direction of the equipment housing. One end of the limit head is placed in the inner cavity of the equipment housing, and the other end is located outside the end of the equipment housing. The limit head is fixed to the boss, and by rotating the boss, the limit head rotates and slides inside the equipment housing.

[0006] Preferably, a marking column is radially arranged at the end of the limit head, and the outer diameter of the marking column is adapted to the inner diameter of the equipment housing; a scale is arranged in the inner cavity of the equipment housing, and the extending direction of the scale is consistent with the length direction of the equipment housing; the marking column contacts the scale.

[0007] Preferably, it further includes a base and a large spring; the base is placed inside the equipment housing and is close to the pressure angle. A through hole for the tool to pass through is opened in the center of the base. Its outer diameter is adapted to the inner diameter of the equipment housing. One side of the base is connected to the end of the limit head through a bearing, and the other side is connected to one end of the large spring. The other end of the large spring is connected to a radial protrusion in the inner cavity of the equipment housing.

[0008] Preferably, it further includes a knob. The knob and the boss are of a sleeve structure, and there are interlocking sawteeth provided at the end of the knob and the equipment housing. When the knob fits with the end of the equipment housing, neither the knob nor the boss can rotate. When the knob disengages from the end of the equipment housing, the knob and the boss can rotate synchronously.

[0009] Preferably, the knob is sleeved outside the boss, and its inner side is slidably connected to the outer side of the boss. The outer side of the knob is connected to the equipment housing through a small spring. One end of the small spring is connected to the knob, and the other end is connected to the end of the equipment housing. When the knob is manually pulled out along the axial direction of the equipment housing, the small spring provides a return force.

[0010] Preferably, a limiting protrusion is provided at the end of the equipment housing away from the pressure angle. The limiting protrusion extends radially towards the center of the equipment housing to prevent the limiting head from disengaging from the inner cavity of the equipment housing.

[0011] Preferably, a threaded hole is opened at one end of the equipment housing close to the pressure angle. The threaded holes are arranged oppositely, and the equipment housing is limited on the pressure angle through a tightening bolt adapted thereto.

[0012] Compared with the prior art, the present invention has the following advantages: improving the quality of hole making and countersinking of the robot, improving the countersinking accuracy, and reducing the cost of the previous hole depth test. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of an embodiment of the present invention; Figure 2 is Figure 1 the left view of Figure 3 is a diagram of the usage state of an embodiment of the present invention; Figures 1-3 In it, 1, pressure angle; 2, equipment housing; 3, tightening bolt; 4, marking post; 5, high-precision scale; 6, large spring; 7, bearing; 8, small spring; 9, knob; 10, limiting head; 11, boss; 12, thread; 13, base; 14, cutter. Detailed Embodiments

[0014] It should be noted that the terms "upper", "lower", "inner", "outer", etc. are all described according to the figures shown or commonly used, and do not constitute a limitation to the present invention. Those of ordinary skill in the art should make an understanding that conforms to the technical solution of the present invention.

[0015] The following combines the attached Figures 1-3The present invention will be further described in detail: A nest depth control device for an automatic hole-making robot, the nest depth control device includes a device housing 2 and a lead screw mechanism; one end of the device housing 2 is sleeved on the pressure angle 1 of the automatic hole-making robot, and the other end is provided with an inner cavity for accommodating the lead screw mechanism; the inside of the lead screw mechanism is hollow, and one end of the cutter 14 sequentially passes through the pressure angle 1 and the lead screw mechanism to adjust the length of the lead screw mechanism relative to the device housing 2, thereby adjusting the length of the cutter 14 protruding from the nest depth control device.

[0016] Specifically, The lead screw mechanism includes a limit head 10 and a boss 11 which are fixedly connected by connection. The boss 11 is arranged at the end of the device housing 2 and can rotate around the axis of the device housing 2. One end of the limit head 10 is placed in the inner cavity of the device housing 2, and the other end is located outside the end of the device housing 2. By rotating the boss 11, the limit head 10 rotates and slides in the device housing 2; a marking column 4 is radially arranged at the end of the limit head 10, and the outer diameter of the marking column 4 is adapted to the inner diameter of the device housing 2; a high-precision scale 5 is arranged in the inner cavity of the device housing 2, and the extending direction of the high-precision scale 5 is consistent with the length direction of the device housing 2; the marking column is in contact with the high-precision scale 5.

[0017] As a preferred implementation mode of this embodiment, it further includes a base 13 and a large spring 6; the base 13 is placed in the device housing 2 and is close to the pressure angle 1. A through hole for the cutter 14 to pass through is opened in the center of the base 13. Its outer diameter is adapted to the inner diameter of the device housing 2. One side of the base 13 is connected to the end of the limit head 10 through a bearing 7, and the other side is connected to one end of the large spring 6. The other end of the large spring 6 is connected to a radial protrusion in the inner cavity of the device housing 2.

[0018] As a preferred implementation mode of this embodiment, it further includes a knob 9. The knob 9 and the boss 11 are of a sleeve structure, and the knob 9 and the end of the device housing 2 are provided with mutually engaging sawteeth; when the knob 9 is in contact with the end of the device housing 2, neither the knob 9 nor the boss 11 can rotate. When the knob is separated from the end of the device housing, the knob and the boss can rotate synchronously; specifically, the knob 9 is sleeved outside the boss 11, and its inner side surface is slidably connected to the outer side surface of the boss. The outer side surface of the knob is connected to the device housing 2 through a small spring 8. One end of the small spring 8 is connected to the knob 9, and the other end is connected to the end of the device housing 2; when the knob is manually pulled out along the axis of the device housing, the small spring 8 provides a return spring force.

[0019] As a preferred implementation mode of this embodiment, a limit protrusion is provided at the end of the device housing 2 away from the pressure angle 1. The limit protrusion extends radially towards the center of the device housing 2. The limit head 10 is provided with a thread 12, and the limit protrusion is screwed to the limit head 10 through the thread 12 to prevent the limit head from detaching from the inner cavity of the device housing.

[0020] As a preferred implementation of this embodiment, a threaded hole is opened at one end of the device housing close to the pressure angle 1, and the threaded holes are arranged relatively to each other, and the device housing 2 is restricted on the pressure angle 1 by a tightening bolt 3 adapted thereto.

[0021] Working principle: Figure 1 As shown, the pressure angle 1 is a self-contained structure of the automatic hole-making robot. The nest depth control device is sleeved on the pressure angle 1 through the equipment housing 2 and fixed with the jacking bolt 3. The knob 9 and the limit head 10 can be used to rotate and slide inside the equipment housing-2. The surface of the limit head 10 is connected and fixed with the boss 11. The knob 9 and the equipment housing 2 have a sawtooth limit contact. Once they fit and cannot rotate, the knob 9 needs to be manually pulled out to rotate and drive the boss 11. At the same time, the boss 11 rotates to drive the limit head 10 to move. The marking column 4 and the high-precision scale 5 on the limit head 10 can be adjusted and limited with high precision. Each node is 0.05mm. The limit head 10 is connected to the base 13 through the bearing 7 and ensures rotational lubrication. The base 13 and the equipment housing 2 are guaranteed to have elasticity through a large spring 6, and the knob 9 and the equipment housing 2 are guaranteed to have elasticity and can be reset through a small spring 8.

[0022] Instructions for use: As shown in Figure 3, the tool 14 extends out from the automatic drilling and riveting equipment and passes through the countersinking limit device; the knob 9 is manually pulled out, and the knob 9 and the boss 11 are manually rotated to drive the limit head 10 to rotate and slide inside the equipment housing 2; the limit head 10 has a marking column 4 inside the equipment housing 2, and the marking column 4 contacts the high-precision scale 5 and pauses every 0.05 mm; finally, when the limit head 10 is adjusted to the theoretical position of the countersink depth of the tool 14, it stops rotating and resets the knob 9 to realize the countersink depth limit function of the tool of the automatic hole-making equipment.

Claims

1. A hole depth control device for an automatic hole-making robot, characterized in that: The nest depth control device includes an equipment housing and a screw mechanism; one end of the equipment housing is mounted on the pressure angle of the automatic hole-making robot, and the other end is provided with an inner cavity for accommodating the screw mechanism; the interior of the screw mechanism is hollow, and one end of the tool passes through the pressure angle and the screw mechanism in sequence, and the length of the screw mechanism relative to the equipment housing is adjusted, thereby adjusting the length of the tool extending out of the nest depth control device.

2. The hole depth control device of the automatic hole-making robot according to claim 1, characterized in that: The screw mechanism includes a limit head and a boss. The boss is arranged at the end of the equipment housing and can rotate around the axial direction of the equipment housing. One end of the limit head is placed in the inner cavity of the equipment housing, and the other end is located outside the end of the equipment housing. The limit head is fixed to the boss. When the boss is rotated, the limit head rotates and slides in the equipment housing.

3. The hole depth control device of the automatic hole-making robot according to claim 2, characterized in that: A marking column is radially arranged at the end of the limit head, and the outer diameter of the marking column is adapted to the inner diameter of the device housing; a scale is arranged in the inner cavity of the device housing, and the extension direction of the scale is consistent with the length direction of the device housing; the marking column is in contact with the scale.

4. The hole depth control device of the automatic hole-making robot according to claim 2, characterized in that: It also includes a base and a large spring; the base is placed in the device housing and close to the pressure angle, with a through hole in the center for accommodating the tool to pass through, and its outer diameter is adapted to the inner diameter of the device housing, one side of the base is connected to the end of the limit head through a bearing, and the other side is connected to one end of the large spring, and the other end of the large spring is connected to a radial protrusion in the inner cavity of the device housing.

5. The hole depth control device of the automatic hole-making robot according to claim 2, characterized in that: It also includes a knob, the knob and the boss are a sleeve structure, and the knob and the end of the device shell are provided with serrations that engage with each other; when the knob fits with the end of the device shell, the knob and the boss cannot rotate, and when the knob is separated from the end of the device shell, the knob and the boss can rotate synchronously.

6. The hole depth control device of the automatic hole-making robot according to claim 5, characterized in that: The knob is sleeved on the outside of the boss, and its inner side is slidably connected to the outer side of the boss. The outer side of the knob is connected to the device housing through a small spring. One end of the small spring is connected to the knob, and the other end is connected to the end of the device housing. When the knob is manually pulled out axially along the device housing, the small spring provides rebound force.

7. The hole depth control device of the automatic hole-making robot according to claim 2, characterized in that: A limiting protrusion is arranged at the end of the device housing away from the pressure angle, and the limiting protrusion extends radially toward the center of the device housing to prevent the limiting head from being separated from the inner cavity of the device housing.

8. The hole depth control device of the automatic hole-making robot according to claim 1, characterized in that: A threaded hole is provided at one end of the device housing close to the pressure angle, and the threaded holes are arranged opposite to each other, and the device housing is restricted on the pressure angle by means of a tightening bolt matched therewith.

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