Ferrule drilling machine

Abstract

The application discloses a sleeve ring drilling machine which is used for drilling holes in the circumferential side wall of a sleeve ring, the holes are first, second, third, fourth and fifth holes arranged along the axial side wall in sequence, the interval between the second hole and the fifth hole is smaller than a preset interval, and the sleeve ring drilling machine comprises a pressing mechanism, a rotating mechanism and a drilling mechanism. The rotating mechanism comprises a workpiece positioning part, the pressing mechanism is used for pressing the sleeve ring into the workpiece positioning part, the drilling mechanism comprises drill bits used for machining the first, second, third and fourth holes, different drill bits are distributed around the workpiece positioning part and are aligned with the first, second, third and fourth holes respectively, and the rotating mechanism can drive the sleeve ring to rotate so that the fifth hole is aligned with any drill bit. The sleeve ring drilling machine can improve the position and size precision of sleeve ring oil hole machining through the drilling mechanism and the rotating mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of drilling machines, in particular to a collar drilling machine. BACKGROUND

[0002] At present, multiple oil holes need to be processed on the collar, and the relative angle between the holes is required to be more and more strict.

[0003] In the prior art, the collar 5-hole is mostly processed manually, one hole is processed first, and the remaining holes are processed by positioning through the hole, or a scale line is marked on the tooling, and each hole is processed by alignment. These all have the problems of insufficient processing precision and high labor intensity, and require high skills of workers. The above two manual drilling methods are more suitable for small batch processing. For mass production, long-term production and high-end product development, manual drilling is not suitable.

[0004] Therefore, how to improve the position and size precision of collar oil hole processing is a technical problem to be solved by those skilled in the art at present. SUMMARY

[0005] The purpose of the present application is to provide a collar drilling machine which can process oil holes on the collar at one time, ensure the relative position precision of the holes, and improve the quality of the product.

[0006] In order to achieve the above purpose, the following technical scheme is provided:

[0007] A collar drilling machine for drilling holes in the circumferential side wall of a collar, the holes being a first hole, a second hole, a third hole, a fourth hole and a fifth hole arranged in sequence along the axial side wall, the spacing between the second hole and the fifth hole being less than a predetermined spacing, and the spacing between the remaining holes being greater than the predetermined spacing, the collar drilling machine comprising:

[0008] A pressing mechanism, a rotating mechanism and a drilling mechanism, the rotating mechanism comprising a workpiece positioning portion, the pressing mechanism being used to press the collar into the workpiece positioning portion, the drilling mechanism comprising drill bits for processing the first hole, the second hole, the third hole and the fourth hole, different drill bits being distributed around the positioning mechanism and respectively aligned with the first hole, the second hole, the third hole and the fourth hole, the rotating mechanism being capable of rotating the collar so that the fifth hole is aligned with any drill bit.

[0009] Preferably, the pressing mechanism comprises a cylinder, a mounting plate, a positioning mandrel and a rotating module for pressing the collar, the mounting plate and the cylinder are fixedly connected, the rotating module is mounted on the mounting plate through the positioning mandrel, the rotating module is rotatable about the positioning mandrel, a guide rod is provided between the mounting plate and the cylinder, and the guide rod is used to prevent the mounting plate and the cylinder from rotating.

[0010] Preferably, the mounting plate is provided with a piece-removing stopper rod and at least two positioning rods, the piece-removing stopper rod and the at least two positioning rods are arranged in a circle, the at least two positioning rods are used for supporting the sleeve ring, and the piece-removing stopper rod is used for abutting against the circumferential side wall of the sleeve ring to prevent the sleeve ring from falling off the positioning rods.

[0011] Preferably, the drilling mechanism comprises a drill mounting portion, a radial adjusting portion and an axial adjusting portion, the drill mounting portion is slidable relative to the radial adjusting portion along the radial direction of the sleeve ring, and the radial adjusting portion is slidable relative to the axial adjusting portion along the axial direction of the sleeve ring.

[0012] Preferably, the radial adjusting portion comprises a first positioning plate and a second positioning plate, the first positioning plate and the second positioning plate are connected perpendicularly, the drill mounting portion is slidable relative to the first positioning plate along the radial direction of the sleeve ring, and the axial adjusting portion comprises an axial adjusting positioning plate, and the second positioning plate is slidable relative to the axial adjusting positioning plate along the axial direction of the sleeve ring.

[0013] Preferably, the workpiece positioning portion comprises an axial positioning sleeve, a radial positioning sleeve and a bearing for positioning the sleeve ring, the radial positioning sleeve is arranged inside the axial positioning sleeve, and the bearing is sleeved on the radial positioning sleeve.

[0014] Preferably, the workpiece positioning portion comprises a bottom mounting portion, and the bottom of the axial positioning sleeve is connected to the bottom mounting portion through a spring.

[0015] Preferably, the rotating mechanism comprises a rotating air cylinder, the rotating air cylinder can drive the mandrel to rotate, and the mandrel can drive the workpiece positioning portion to rotate.

[0016] Preferably, the rotating mechanism comprises a screw rod support assembly for fixing the mandrel.

[0017] With respect to the above background art, the drilling machine disclosed by the present application can process the oil holes on the sleeve ring at one time, the pressing mechanism can press the sleeve ring into the workpiece positioning portion, the drilling mechanism comprises drills for processing the first hole, the second hole, the third hole and the fourth hole, different drills are arranged around the positioning mechanism and are aligned with the first hole, the second hole, the third hole and the fourth hole respectively, and after the four holes are processed, the rotating mechanism can drive the positioning mechanism to rotate by a certain angle to make the fifth hole aligned with any drill, so that the processing of the fifth hole on the sleeve ring is completed. In this way, the above drilling mechanism and rotating device are used to process the five oil holes on the sleeve ring at one time, the relative position accuracy of the holes is ensured, and the quality of the product is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 A side view of the ferrule drilling machine provided by the embodiment of the present application;

[0020] Figure 2 A rear view of the ferrule drilling machine provided by the embodiment of the present application;

[0021] Figure 3 A side view of the pressing mechanism provided by the embodiment of the present application;

[0022] Figure 4 A rear view of the pressing mechanism provided by the embodiment of the present application;

[0023] Figure 5 A sectional view of the pressing mechanism provided by the embodiment of the present application;

[0024] Figure 6 A sectional view of the rotating mechanism provided by the embodiment of the present application;

[0025] Figure 7 A side view of the adjusting mechanism provided by the embodiment of the present application;

[0026] Figure 8 A rear view of the adjusting mechanism provided by the embodiment of the present application;

[0027] Figure 9 A structural schematic diagram of the axial adjusting mechanism provided by the embodiment of the present application;

[0028] Figure 10 A structural schematic diagram of the radial adjusting mechanism provided by the embodiment of the present application;

[0029] Figure 11 A structural schematic diagram of the ferrule provided by the embodiment of the present application;

[0030] Figure 12 A sectional view of the ferrule provided by the embodiment of the present application;

[0031] Figure 13 A sectional view of the ferrule provided by the embodiment of the present application.

[0032] Wherein:

[0033] 01 is a first hole, 02 is a second hole, 03 is a third hole, 04 is a fourth hole, 05 is a fifth hole, 1 is a feeding mechanism, 2 is a feeding mechanism, 3 is a rotating mechanism, 4 is a drilling mechanism, 5 is a pressing mechanism, 41 is a drill bit, 42 is a drill bit mounting portion, 43 is a radial adjustment portion, 44 is an axial adjustment portion, 441 is an axial adjustment positioning plate, 431 is a first positioning plate, 432 is a second positioning plate, 31 is a workpiece positioning portion, 32 is a rotating cylinder, 33 is a screw support assembly, 34 is a box body, 35 is a first water leakage hole, 36 is a mandrel, 37 is a bottom mounting plate, 38 is a second water leakage hole, 311 is a radial positioning sleeve, 312 is a bearing, 313 is an axial positioning sleeve, 50 is a blocking piece rod, 51 is a positioning rod, 52 is a rotating module, 53 is a positioning mandrel, 54 is a piece removing blocking piece rod, 55 is a mounting plate, 56 is a cylinder, 57 is an L-shaped bottom plate, 58 is a cylinder mounting plate, and 59 is a guide rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0035] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0036] It should be noted that the "upper part, lower part" and the direction words "left, right" in the following are defined based on the drawings in the specification.

[0037] In the embodiments provided by the present application, a sleeve ring drilling machine is used to drill holes in the circumferential side wall of a sleeve ring, which generally refers to a sleeve ring on a bearing. The holes are a first hole 01, a second hole 02, a third hole 03, a fourth hole 04 and a fifth hole 05 arranged in sequence along the axial side wall, i.e. four oil injection holes and one blind hole for a stop ball. The distance between the second hole 02 and the fifth hole 05 is less than a preset distance, and the distances between the remaining holes are greater than the preset distance. The sleeve ring drilling machine comprises:

[0038] The pressing mechanism 5, the rotating mechanism 3 and the drilling mechanism 4. The rotating mechanism 3 comprises a workpiece positioning portion 31. The pressing mechanism 5 is used to press the sleeve ring into the workpiece positioning portion 31. The drilling mechanism 4 comprises drill bits 41 for machining the first hole, the second hole, the third hole and the fourth hole. Different drill bits 41 are distributed around the workpiece positioning portion 31 and are respectively aligned with the first hole 01, the second hole 02, the third hole 03 and the fourth hole 04. The rotating mechanism 3 can drive the sleeve ring to rotate so that the fifth hole 05 is aligned with any drill bit 41.

[0039] Please refer to Figure 1 and Figure 2 , the sleeve ring falls from the feeding mechanism 2 to the pressing mechanism 5, the pressing mechanism 5 presses the sleeve ring on the workpiece positioning part 31, and the drill bit 41 distributed around the workpiece positioning part 31 processes it. Because the distance between the second hole and the fifth hole is less than the preset distance, usually the preset distance is less than forty-five degrees of rotation center with the origin, it is difficult to process at the same time, because the drilling mechanism 4 itself also has a certain width, so the first hole, the second hole, the third hole and the fourth hole are processed first, so that the four drills are respectively aligned with the first hole, the second hole, the third hole and the fourth hole on the sleeve ring, and then drilling is carried out. After the four holes are processed, the rotating mechanism 3 rotates to drive the workpiece positioning part 31 to rotate, the workpiece positioning part 31 drives the sleeve ring and the front part of the pressing mechanism 5 to rotate, so that the sleeve ring rotates in the pressing state, and then the fifth hole is processed. After all the holes are processed, the sleeve ring falls onto the discharging mechanism 1, and the process is repeated.

[0040] In this embodiment, the pressing mechanism 5 includes a cylinder 56, a mounting plate 55, a positioning mandrel 53 and a rotating module 52 for pressing the sleeve ring. The mounting plate 55 and the cylinder 56 are fixedly connected, the rotating module 52 is installed on the mounting plate 55 through the positioning mandrel 53, the rotating module 52 can rotate around the positioning mandrel 53, and a guide rod 59 is arranged between the mounting plate 55 and the cylinder 56, which is used to prevent the mounting plate 55 and the cylinder 56 from rotating.

[0041] Please refer to Figures 3 to 5 , the cylinder 56 drives the mounting plate 55 and the rotating module 52 to advance and press the sleeve ring into the workpiece positioning part. Under the action of the rotating mechanism 3, the workpiece positioning part rotates to drive the sleeve ring to rotate, and the rotating module 52 rotates with the sleeve ring while the cylinder 56 and the mounting plate 55 do not rotate, so that the rotating module 52 rotates in the pressing state. Because the bottom of the mounting plate 55 is provided with a positioning rod and the side wall is provided with a part removal blocking rod, in order to ensure that the positioning rod and the part removal blocking rod accurately position the sleeve ring and prevent the sleeve ring from falling off, it is necessary to ensure that the mounting plate 55 cannot rotate with the sleeve ring. Therefore, the guide rod 59 is arranged between the mounting plate 55 and the cylinder 56, which plays the functions of accurate positioning and guiding.

[0042] Of course, according to the actual situation, the pressing mechanism 5 can also be designed to be adjustable up and down and left and right, so as to adjust the center of the workpiece positioning part of the pressing mechanism 5 to be consistent with the center of the workpiece positioning part. That is to say, a guide key is added on the cylinder mounting plate 58 and a key groove and a bolt locking straight slot are added on the L-shaped bottom plate 57, so that up and down adjustment can be realized. The guide key plays the function of center positioning when the overall structure is adjusted. At the same time, left and right bolt locking straight slots are machined on the L-shaped bottom plate 57 to facilitate the adjustment of the overall structure left and right.

[0043] Meanwhile, the blocking piece rod 50 can be fixed on the mounting plate 55. That is, when the cylinder 56 pushes the sleeve ring to press into the workpiece positioning part 31, the blocking piece rod 50 is simultaneously driven to block the workpiece on the feeding mechanism 2. Since the blocking piece rod 50 and the guide rod 59 need to be rotated back and forth for a long time, a wear-resistant sleeve can be added thereon to prevent the device from wearing and increase the service life of the device.

[0044] In the embodiment, the mounting plate 55 is provided with the piece removing blocking piece rod 54 and at least two positioning rods 51, the piece removing blocking piece rod 54 and the at least two positioning rods 51 are arranged in a circle, the at least two positioning rods 51 are used to support the sleeve ring, and the piece removing blocking piece rod 54 is used to abut against the circumferential side wall of the sleeve ring to block the sleeve ring from falling off the positioning rod.

[0045] Generally, two positioning rods 51 are arranged on the downward part of the mounting plate 55, and there is a certain distance between the two positioning rods 51, which supports and positions the sleeve ring falling off the feeding mechanism 2. However, it is not enough to only support the sleeve ring, so the piece removing blocking piece rod 54 is arranged on the left and right of the mounting plate 55 to prevent the sleeve ring from falling off the left and right of the mounting plate 55.

[0046] In the embodiment, the drilling mechanism 4 includes the drill bit mounting part 42, the radial adjusting part 43, and the axial adjusting part 44. The drill bit mounting part 42 can slide along the radial direction of the sleeve ring relative to the radial adjusting part 43, and the radial adjusting part 43 can slide along the axial direction of the sleeve ring relative to the axial adjusting part 44.

[0047] Please refer to Figures 7 to 10 , the drill bit mounting part 42 and the radial adjusting part 43 are connected by adjusting screws. The drill bit mounting part 42 can be rotated by the adjusting screws to move along the radial direction of the sleeve ring on the radial adjusting part 43, thereby adjusting the radial position of the drill bit 41 to ensure the drilling position on the sleeve ring. The radial adjusting part 43 and the axial adjusting part 44 are also connected by adjusting screws. The radial adjusting part 43 can be rotated by the adjusting screws to move along the axial direction of the sleeve ring on the axial adjusting part 44. Since the drill bit mounting part 42 is mounted on the radial adjusting part 43, the drill bit mounting part 42 can move along the axial direction of the sleeve ring with the radial adjusting part 43, thereby adjusting the axial position of the drill bit to meet the drilling position on the workpiece. Moreover, this device can also be accurately adjusted to the position for different models and sizes of workpieces, so that the equipment can meet the processing needs of various models, and the applicability of the overall equipment is maximally utilized.

[0048] In the embodiment, the radial adjustment part 43 comprises a first positioning plate 431 and a second positioning plate 432, the first positioning plate 431 is connected with the second positioning plate 432 vertically, the drill bit mounting part 42 can slide along the radial direction of the sleeve relative to the first positioning plate 431, the axial adjustment part 44 comprises an axial adjustment positioning plate 441, the second positioning plate 432 can slide along the axial direction of the sleeve relative to the axial adjustment positioning plate 441.

[0049] Of course, in actual situation, in order to strengthen the strength and rigidity of the radial adjustment part 43 and the axial adjustment part, the first positioning plate 431 and the second positioning plate 432 and the axial adjustment positioning plate 441 and the mounting plate are connected by screws, and are fixed by two reinforcing ribs at the same time.

[0050] At the same time, in order to reduce the stress concentration generated during welding and make the workpiece deform, and then affect the precision of the workpiece, the radial adjustment part 43 and the axial adjustment part do not use welding, but can be connected by processing each part.

[0051] In order to make the drill bit mounting part 42 slide on the first positioning plate 431 more easily, a positioning sliding key is arranged in the middle of the first positioning plate 431, and a positioning groove penetrating the side wall is arranged in the middle of the drill bit mounting part 42, which is used to be mounted on the positioning sliding key. In addition, the same arrangement is also made on the second positioning plate 432 and the axial adjustment positioning plate 441.

[0052] In the embodiment, the workpiece positioning part 31 comprises an axial positioning sleeve 313, a radial positioning sleeve 311 and a bearing 312 for positioning the sleeve, the radial positioning sleeve 311 is arranged inside the axial positioning sleeve 313, and the bearing 312 is sleeved on the radial positioning sleeve 311.

[0053] Please refer to Figure 1 and Figure 6 The pressing mechanism 5 presses the sleeve on the bearing 312, the sleeve moves backward by pressing the bearing 312, the bearing 312 moves backward by pressing the axial positioning sleeve 313, until the axial positioning sleeve 313 contacts the bottom mounting plate, which plays a role in the axial positioning of the bearing 312, and at the same time, the inner diameter of the bearing 312 is inserted into the outer diameter of the radial positioning sleeve 311, which plays a role in the radial positioning of the bearing 312, so that the sleeve is fixed and the positioning of the sleeve is ensured.

[0054] In the embodiment, the workpiece positioning part 31 comprises a bottom mounting part 37, and the bottom of the axial positioning sleeve 313 is connected with the bottom mounting part 37 by a spring.

[0055] Please refer to Figures 7 to 9When the pressing mechanism 5 is pressed into the workpiece positioning portion 31, the axial positioning sleeve 313 moves backward, and since a spring is arranged between the bottom of the axial positioning sleeve 313 and the bottom mounting portion 37, the spring is pressed. After the sleeve ring is processed, the pressing mechanism 5 is retracted, the spring returns to the original position, and the sleeve ring is pushed out through the axial positioning sleeve 313, so that the sleeve ring automatically falls on the discharging mechanism 2, and a working condition is completed.

[0056] In the embodiment, the rotating mechanism 3 comprises a rotating cylinder 32, the rotating cylinder 32 can drive the mandrel 36 to rotate, and the mandrel 36 can drive the workpiece positioning portion 31 to rotate.

[0057] Of course, according to the actual situation, the rear half of the rotating mechanism 3 can adopt a box type, and important parts such as the cylinder are sealed in a box to prevent the invasion of cutting fluid during processing and affect the service life. Of course, the first water leakage hole 35 can also be designed at the bottom of the box 34, so as to prevent the possibility of damaging the precision parts in the case of external sealing failure, and maximize the overall safety performance. At the same time, the workpiece positioning portion 31 can adopt modular design, and when the model needs to be replaced, the workpiece positioning portion 31 can be removed from the mandrel 36 without the need for excessive adjustment.

[0058] Generally, the axial sealing ring is installed at the bottom of the workpiece positioning portion 31 to prevent the invasion of cutting fluid, and a dust cover is additionally arranged outside the workpiece positioning portion to prevent the invasion of external cutting fluid and iron filings into the bottom of the axial positioning sleeve 313, thereby affecting the axial positioning function of the outer ring of the bearing 312.

[0059] In the embodiment, the rotating mechanism 3 comprises a lead screw support assembly for fixing the mandrel 36.

[0060] Please continue to refer to Figure 6 The positioning support seat 33 adopts a high-precision lead screw support assembly, which can ensure the axial and radial accuracy during rotation. Of course, in actual situations, the second water leakage hole 38 is designed at the bottom of the support positioning sleeve 33, so as to prevent the possibility of damaging the precision parts in the case of external sealing failure, and maximize the overall safety performance.

[0061] It should be noted that in the present specification, relational terms such as first and second and the like are used solely to distinguish one entity from another entity, without necessarily requiring or implying that there is any such actual relationship or order between these entities.

[0062] The principles and implementations of the present application are described in the specific examples in this article, and the above examples are only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, the present application can be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A ferrule borer characterized by, The application relates to a ring drilling machine for drilling holes in the circumferential side wall of a ring, the holes being a first hole, a second hole, a third hole and a fourth hole arranged in sequence along the circumferential side wall, a fifth hole being arranged between the second hole and the third hole, the distance between the second hole and the fifth hole being smaller than a preset distance, and the distances between the other holes being larger than the preset distance. The ring drilling machine comprises a pressing mechanism, a rotating mechanism and a drilling mechanism, the rotating mechanism comprising a workpiece positioning part, the pressing mechanism being used for pressing the ring into the workpiece positioning part, the drilling mechanism comprising drill bits for machining the first hole, the second hole, the third hole and the fourth hole, the different drill bits being distributed around the workpiece positioning part and being respectively aligned with the first hole, the second hole, the third hole and the fourth hole, and the rotating mechanism being capable of rotating the ring so that the fifth hole is aligned with any of the drill bits. The pressing mechanism comprises a cylinder, a mounting plate, a positioning mandrel and a rotating module for pressing the ring, the mounting plate and the cylinder being fixedly connected, the rotating module being mounted on the mounting plate through the positioning mandrel, the rotating module being capable of rotating around the positioning mandrel, a guide rod being arranged between the mounting plate and the cylinder, and the guide rod being used for preventing the mounting plate and the cylinder from rotating. The mounting plate is provided with a piece-removing stopper and at least two positioning rods, the piece-removing stopper and the at least two positioning rods being arranged in a circular shape, the positioning rods being located below the piece-removing stopper, the at least two positioning rods being used for supporting the ring, and the piece-removing stopper being used for abutting against the circumferential side wall of the ring to prevent the ring from falling off the positioning rods. The drilling mechanism comprises a drill bit mounting part, a radial adjusting part and an axial adjusting part, the drill bit mounting part being capable of sliding along the radial direction of the ring relative to the radial adjusting part, and the radial adjusting part being capable of sliding along the axial direction of the ring relative to the axial adjusting part. The radial adjusting part comprises a first positioning plate and a second positioning plate, the first positioning plate and the second positioning plate being vertically connected, the drill bit mounting part being capable of sliding along the radial direction of the ring relative to the first positioning plate, and the axial adjusting part comprising an axial adjusting positioning plate, the second positioning plate being capable of sliding along the axial direction of the ring relative to the axial adjusting positioning plate. The workpiece positioning part comprises an axial positioning sleeve, a radial positioning sleeve and a bearing for positioning the ring, the radial positioning sleeve being arranged inside the axial positioning sleeve, and the bearing being sleeved on the radial positioning sleeve; the pressing mechanism presses the ring against the bearing, the bearing is moved backward under the pressing of the ring, the axial positioning sleeve is moved backward under the pressing of the bearing, and the axial positioning sleeve contacts the bottom mounting plate until the bearing is axially positioned, and the bearing is radially positioned due to the insertion of the inner diameter of the bearing into the outer diameter of the radial positioning sleeve, so that the ring is fixed and the positioning of the ring is ensured to be accurate.

2. A ferrule borer as claimed in claim 1, characterized in that The workpiece positioning part comprises a bottom mounting plate, and the bottom of the axial positioning sleeve and the bottom mounting plate are connected through a spring.

3. A ferrule borer as claimed in claim 1, characterized in that The rotating mechanism comprises a rotating cylinder which can drive the mandrel to rotate, and the mandrel can drive the workpiece positioning part to rotate.

4. A ferrule borer as claimed in claim 3, characterized in that The rotating mechanism comprises a screw rod support assembly for fixing the mandrel.

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