Double-head drilling machine

Abstract

The utility model relates to the technical field of drilling equipment, in particular to a double-head drilling machine which comprises a base, a placement seat and two drilling devices and is used for machining a connecting rod with through holes in the two side faces of the two ends, the placement seat is fixedly installed on the base, the connecting rod is placed on the placement seat, and the two drilling devices are located on the two sides of the placement seat correspondingly. Each drilling device comprises a rotary driving device, a multi-shaft device and a first linear driving device, a rotary shaft of the rotary driving device is connected with the multi-shaft device, two drill bits are rotatably mounted on the multi-shaft device, the first linear driving device is arranged on the base, and a push rod of the first linear driving device is fixedly connected with the rotary driving device; the two side edges of the connecting rod are drilled through the drilling devices located on the two sides of the containing base at the same time, compared with the prior art, the stroke that a single drill bit passes through the second groove is omitted, and the drilling device has the advantages of being suitable for the application situation that the distance between two holes is large, and a plurality of cutting holes are formed in one side of a workpiece.

Description

Technical Field

[0001] The present application relates to the technical field of drilling equipment, and more specifically to a double-head drilling machine. Background Art

[0002] There is a connecting rod 90, such as Figure 1 As shown, one side of the connecting rod 90 has a first groove 901 , both ends of the connecting rod 90 have a second groove 902 , and both side walls of the second groove 902 have a through hole 903 .

[0003] In the prior art, when processing the connecting rod 90, after the connecting rod 90 is clamped and fixed, a drill bit of a vertical drilling machine is moved downward by a predetermined distance to drill one end of the connecting rod 90 and penetrate the connecting rod 90, so that both side walls of the second groove 902 at this end of the connecting rod 90 are processed to obtain a through hole 903. Subsequently, after the drill bit is moved upward and exits the two through holes 903, the connecting rod 90 is clamped with another head, and the above drilling steps are repeated to obtain the connecting rod 90 with four through holes 903. However, when the groove width of the second groove 902 is large, the distance of the drill bit moving in the second groove 902 is long when drilling the two through holes 903 on the two side walls of the second groove 902, which reduces the drilling efficiency; secondly, due to the use of a single drill bit for drilling, after drilling the two through holes 903 at one second groove 902, it needs to be re-clamped, which further reduces the processing efficiency.

[0004] Therefore, there is a demand for providing a double-head drilling machine suitable for application scenarios in which the distance between two holes is large and a single side of a workpiece has multiple cutting holes. Summary of the invention

[0005] The main purpose of the present application is to provide a double-head drilling machine, comprising a base for processing a connecting rod, one side of the connecting rod having a first groove, both ends of the connecting rod having a second groove, and both side walls of the second groove having a through hole, wherein the double-head drilling machine also includes a placement seat for placing the connecting rod, two clamping devices and two drilling devices, the placement seat is fixedly mounted on the base, the placement seat has a protrusion, when the connecting rod is placed on the placement seat, the protrusion extends into the first concave cavity, the two clamping devices are respectively arranged at both ends of the placement seat, each of the clamping devices comprises a sliding member, the sliding member is slidably arranged on the placement seat, when the connecting rod is placed on the placement seat, the sliding member extends into the The two drilling devices are respectively located on both sides of the placement seat, and each drilling device includes a rotary drive device, a multi-axis device and a first linear drive device. The rotary drive device has a rotating shaft connected to the multi-axis device, and two drill bits are rotatably mounted on the multi-axis device. The first linear drive device is arranged on the base, and the push rod of the first linear drive device is fixedly connected to the rotary drive device. The connecting rod is clamped by the clamping device, and both sides of the connecting rod are drilled simultaneously by the drilling devices located on both sides of the placement seat. Compared with the prior art, the travel of a single drill bit through the second groove is omitted, and the drilling device has the advantage of being suitable for application scenarios in which the distance between two holes is large and a single side of the workpiece has multiple cutting holes.

[0006] Another object of the present application is to provide a double-head drilling machine, wherein each of the clamping devices includes a second linear drive device, a first connecting rod, a second connecting rod and a third connecting rod, both ends of the placement seat have a slide groove, the sliding member is slidably arranged in the slide groove, the second linear drive device is fixedly installed on the placement seat, the two ends of the first connecting rod are respectively rotatably connected to the push rod of the second linear drive device and the second connecting rod, the third connecting rod is located between the push rod of the second linear drive device and the sliding member, and the two ends of the third connecting rod are respectively rotatably connected to the placement seat and the first connecting rod, the end of the second connecting rod facing away from the first connecting rod is rotatably connected to the sliding member, when the push rod of the second linear drive device moves, the sliding member slides back and forth along the slide groove, thereby achieving clamping of the connecting rod.

[0007] In order to achieve at least one of the above-mentioned invention purposes, the present application provides a double-head drilling machine, comprising a base, used for processing a connecting rod, one side of the connecting rod has a first groove, both ends of the connecting rod have a second groove, and both side walls of the second groove have a through hole, wherein the double-head drilling machine also includes:

[0008] a placement seat for placing the connecting rod, the placement seat being fixedly mounted on the base, the placement seat having a protrusion, and when the connecting rod is placed on the placement seat, the protrusion extends into the first concave cavity; and

[0009] two clamping devices, the two clamping devices are respectively arranged at two ends of the placement seat, each of the clamping devices comprises a sliding member, the sliding member is slidably arranged on the placement seat, when the connecting rod is placed on the placement seat, the sliding member extends into the second groove and abuts against the connecting rod or the sliding member is separated from the second groove; and

[0010] Two drilling devices, the two drilling devices are respectively located on both sides of the placement seat, each of the drilling devices includes a rotation drive device, a multi-axis device and a first linear drive device, the rotating shaft of the rotation drive device is connected to the multi-axis device, two drill bits are rotatably installed on the multi-axis device, the first linear drive device is arranged on the base, and the push rod of the first linear drive device is fixedly connected to the rotation drive device.

[0011] In one or more embodiments of the present application, each of the clamping devices includes a second linear drive device, a first connecting rod, a second connecting rod and a third connecting rod. Both ends of the placement seat have a sliding groove, and the sliding member is slidably arranged in the sliding groove. The second linear drive device is fixedly installed on the placement seat, and the two ends of the first connecting rod are respectively rotatably connected to the push rod of the second linear drive device and the second connecting rod. The third connecting rod is located between the push rod of the second linear drive device and the sliding member, and the two ends of the third connecting rod are respectively rotatably connected to the placement seat and the first connecting rod, and the end of the second connecting rod facing away from the first connecting rod is rotatably connected to the sliding member. When the push rod of the second linear drive device moves, the sliding member slides back and forth along the sliding groove.

[0012] In one or more embodiments of the present application, the double-head drilling machine also includes four auxiliary seats, two auxiliary seats are provided on the side of each drilling device, each auxiliary seat includes a guide rod and two support assemblies, the two support assemblies are connected to the base, the two ends of the guide rod are respectively fixedly connected to the two support assemblies, and each of the two sides of the multi-axis device has an extension part, the extension part corresponds to the guide rod one by one, and each extension part is slidably set on the corresponding guide rod.

[0013] In one or more embodiments of the present application, each of the drilling devices is slidably disposed on the base in the height direction of the base.

[0014] In one or more embodiments of the present application, each of the drilling devices is slidably disposed on the base in the width direction of the base.

[0015] In one or more embodiments of the present application, each of the support components is bolted to the base, and the base has a plurality of threaded holes in the width direction for being bolted to the support components.

[0016] In one or more embodiments of the present application, each of the support assemblies includes a lower seat body and an upper seat body, the lower seat body has a waist-shaped groove in the height direction, the upper seat body is slidably disposed in the waist-shaped groove, the lower seat body is connected to the base bolts, and the upper seat body is connected to the guide rod.

[0017] In one or more embodiments of the present application, the base has a chip drop opening.

[0018] In an embodiment of the present application, a double-head drilling machine includes a base, a placement seat and two drilling devices, which are used to process a connecting rod with through holes on both sides of the two ends. The placement seat is fixedly installed on the base, and the connecting rod is placed on the placement seat. The two drilling devices are respectively located on both sides of the placement seat, and each drilling device includes a rotary drive device, a multi-axis device and a first linear drive device. The rotating shaft of the rotary drive device is connected to the multi-axis device, and two drill bits are rotatably installed on the multi-axis device. The first linear drive device is arranged on the base, and the push rod of the first linear drive device is fixedly connected to the rotary drive device. The two sides of the connecting rod are drilled at the same time by the drilling devices located on both sides of the placement seat. Compared with the prior art, the stroke of a single drill bit passing through the second groove is omitted, and it has the advantage of being suitable for application scenarios where the distance between the two holes is large and a single side of the workpiece has multiple cutting holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] These and / or other aspects and advantages of the present application will become clearer and easier to understand from the following detailed description of the embodiments of the present application in conjunction with the accompanying drawings, in which:

[0020] Figure 1 The figure shows a structural schematic diagram of an existing connecting rod;

[0021] Figure 2 The figure shows a schematic structural diagram of a double-head drilling machine according to an embodiment of the present application;

[0022] Figure 3 The figure shows a schematic diagram of the structure of the clamping device and the placement seat;

[0023] Figure 4 The figure shows a schematic diagram of the structure of the drilling device and the auxiliary seat. DETAILED DESCRIPTION

[0024] The terms and words used in the following specification and claims are not limited to the literal meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustrative purposes only and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.

[0025] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0026] Although ordinals such as "first," "second," and the like will be used to describe various components, those components are not limited herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more associated listed items.

[0027] The terms used herein are only used for the purpose of describing various embodiments and are not intended to be limiting. As used herein, singular forms are intended to also include plural forms, unless the context clearly indicates an exception. In addition, it will be understood that the terms "including" and / or "having" when used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0028] Application Overview

[0029] In the existing processing of connecting rods, when the groove width of the second groove is large, the drill bit moves a long distance in the second groove when drilling the two through holes on the two side walls of the second groove, which reduces the drilling efficiency; secondly, due to the use of a single drill bit for drilling, after drilling the two through holes in one second groove, it needs to be re-clamped, which further reduces the processing efficiency.

[0030] Based on the above technical problems, the present application proposes a double-head drilling machine, wherein the double-head drilling machine has a simple structure, does not involve complicated manufacturing processes and expensive materials, and has high economic efficiency. At the same time, for manufacturers, the double-head drilling machine provided by the present application is easy to produce and low-cost, which is more conducive to controlling production costs and further conducive to product promotion and use.

[0031] Schematic double-head drilling machine,

[0032] refer to Figures 2 to 4According to a preferred embodiment of the utility model, a double-head drilling machine includes a base 10, a placement seat 20, two clamping devices 30 and two drilling devices 40, which are used to process a connecting rod 90, one side of the connecting rod 90 has a first groove 901, both ends of the connecting rod 90 have a second groove 902, and both side walls of the second groove 902 have a through hole 903.

[0033] Specifically, Figure 1 and Figure 2 As shown, the placement seat 20 is used to place the connecting rod 90. The placement seat 20 is fixedly installed on the base 10 by bolts. The placement seat 20 has a protrusion 201. When the connecting rod 90 is placed on the placement seat 20, the protrusion 201 extends into the first groove 901, and the top surface of the protrusion 201 is in contact with the bottom of the first groove 901. The protrusion 201 limits the circumferential swing of the connecting rod 90.

[0034] In addition, if Figure 3 As shown, the two clamping devices 30 are respectively arranged at the two ends of the placement seat 20, and each of the clamping devices 30 includes a sliding member 301, and the sliding member 301 is slidably arranged on the placement seat 20. When the connecting rod 90 is placed on the placement seat 20, the sliding member 301 extends into the second groove 902 and abuts against the connecting rod 90 or the sliding member 301 is separated from the second groove 902. A pressure is applied to the two ends of the connecting rod 90 by the two sliding members 301, thereby limiting the forward and backward and up and down sliding of the protrusion 201 along the protrusion 201.

[0035] In addition, if Figure 1 and Figure 4As shown, the two drilling devices 40 are respectively located on both sides of the placement seat 20, each of the drilling devices 40 is slidably arranged on the base 10 in the length direction of the base 10 and is close to or away from the placement seat 20, each of the drilling devices 40 includes a rotation drive device (not marked in the figure), a multi-axis device 401 and a first linear drive device (not marked in the figure), the rotating shaft of the rotation drive device is connected to the multi-axis device 401, and two drill bits (not marked in the figure) are rotatably installed on the multi-axis device 401, and the rotation drive device is further implemented as a rotating motor. When the rotating shaft of the rotation drive device rotates, the two drill bits rotate circumferentially. More specifically, the multi-axis device 401 includes a box, a first gear, two second gears and two output shafts (not marked in the figure). The first gear and the two second gears are both driven and installed in the box body, the first gear is meshed with the two second gears at the same time, each of the second gears is fixedly connected with an output shaft, the first gear is connected to the rotating shaft of the rotation drive device, and each of the output shafts is fixedly installed with a drill bit. Since the multi-axis device 401 technology is mature, the specific structure of the multi-axis device 401 is not described here. The multi-axis device 401 includes but is not limited to the multi-axis device 401 with a box body, an output shaft and a transmission gear disclosed in the patent document (CN203649480U); in addition, the first linear drive device is arranged on the base 10, and the push rod of the first linear drive device is fixedly connected to the rotation drive device, and its fixed connection method includes but is not limited to a threaded connection.

[0036] It should be noted that, after the connecting rod 90 is placed on the placement seat 20, the two clamping devices 30 are used to clamp the connecting rod 90, and the first linear drive device is operated to make the two drilling devices 40 approach the placement seat 20 at the same or similar time, and drill a through hole 903 on the corresponding side wall of the second groove 902. It is obvious that, by arranging the drilling devices 40 on the outer sides of the two side walls of the second groove 902, the drill bit only needs to cut one through hole 903, which eliminates the need for one drill bit to drill two through holes 903 in the prior art. The idle travel through the second groove 902 saves the overall cutting time; secondly, by providing a multi-axis device 401 on each drilling device 40, a driving motor can drive the two drill bits, and then when the drilling device 40 is close to the connecting rod 90, the two through holes 903 can be processed on one side of the connecting rod 90 at the same time. Compared with the prior art, after processing the two through holes 903 at one end, one head needs to be replaced for processing again. The embodiment of the present application has higher drilling efficiency and is suitable for application scenarios where the distance between the two holes is large and a single side of the workpiece has multiple cutting holes.

[0037] Furthermore, in order to achieve the clamping device 30 clamping or loosening the connecting rod 90, as shown in FIG. Figure 3 As shown, each of the clamping devices 30 includes a second linear drive device 302, a first connecting rod 303, a second connecting rod 304 and a third connecting rod 305, wherein the second linear drive device 302 includes but is not limited to an electric push rod, both ends of the placement seat 20 have a slide groove 202, the sliding member 301 is slidably arranged in the slide groove 202, the second linear drive device 302 is fixedly mounted on the placement seat 20 by bolt connection, and the two ends of the first connecting rod 303 are respectively rotated in an articulated manner with the push rod of the second linear drive device 302 and the second connecting rod 304 The third connecting rod 305 is located between the push rod of the second linear drive device 302 and the sliding member 301, and the two ends of the third connecting rod 305 are respectively rotatably connected to the placement seat 20 and the first connecting rod 303 in an articulated manner, and the end of the second connecting rod 304 away from the first connecting rod 303 is rotatably connected to the sliding member 301 in an articulated manner. When the push rod of the second linear drive device 302 is actuated, the first connecting rod 303, the second connecting rod 304 and the third connecting rod 305 all swing, and make the sliding member 301 slide back and forth along the slide groove 202.

[0038] Furthermore, in order to improve the rigidity of the drilling device 40 during drilling, auxiliary support is provided to it, such as Figure 2 and Figure 4 As shown, the double-head drilling machine also includes four auxiliary seats 50, and two auxiliary seats 50 are provided on the side of each drilling device 40, and each auxiliary seat 50 includes a guide rod 501 and two support assemblies 502, and the two support assemblies 502 are connected to the base 10, and the two ends of the guide rod 501 are respectively fixedly connected to the two support assemblies 502, and the fixed connection method includes but is not limited to welding, and each of the two sides of the box body of each multi-axis device 401 has an extension part 4011, and the extension part 4011 corresponds to the guide rod 501 one by one, and each extension part 4011 is slidably arranged on the corresponding guide rod 501. It should be noted that when the drilling device 40 approaches or moves away from the placement seat 20, the extension part 4011 slides along the guide rod 501.

[0039] Furthermore, in order to adapt to connecting rods 90 of different specifications, each of the drilling devices 40 is slidably disposed on the base 10 in the height direction of the base 10. More specifically, Figure 4As shown, each of the drilling devices 40 includes a first slide 402 and a first slider 403, the first slide 402 is vertically arranged on the base 10, the first slider 403 is slidably set on the first slide 402, and the first linear drive device is fixedly installed on the first slider 403. When the first slider 403 slides up and down, the first linear drive device can move up and down in the height direction of the base 10, and make the multi-axis device 401 and the drill bit also move up and down.

[0040] It should be noted that in order to avoid interference between the multi-axis device 401 and the guide rod 501 when the multi-axis device 401 moves up and down, Figure 4 As shown, each of the support assemblies 502 includes a lower seat body 5021 and an upper seat body 5022. The lower seat body 5021 has a waist-shaped groove 50221 in the height direction. The upper seat body 5022 is slidably set in the waist-shaped groove 50221. The lower seat body 5021 is bolted to the base 10, and the upper seat body 5022 is connected to the guide rod 501.

[0041] Similarly, in order to adapt to connecting rods 90 of different specifications, each drilling device 40 is slidably disposed on the base 10 in the width direction of the base 10. More specifically, Figure 4 As shown, each of the drilling devices 40 includes a second slide 404, which is horizontally arranged on the base 10, and the first slide 402 and the second slide 404 are vertically arranged. The first slide 402 is slidably set on the second slide 404. When the first slide 402 slides back and forth along the second slide 404, the first linear drive device moves back and forth in the width direction of the base 10, and makes the multi-axis device 401 and the drill bit also move back and forth.

[0042] It should be pointed out that in order to avoid interference between the movement of the guide rod 501 and the multi-axis device 401 when moving forward and backward, each of the support components 502 is bolted to the base 10, and the base 10 has a plurality of threaded holes (not shown in the figure) in the width direction for bolting with the support components 502. Before moving the multi-axis device 401 forward and backward, the processing personnel first loosen the bolts at the connection between the support component 502 and the base 10, and after the front and rear positions of the multi-axis device 401 are determined, screw the bolts into the threaded holes at another position.

[0043] Furthermore, in order to facilitate cleaning of waste chips during drilling, the base 10 has a chip removal opening (not shown in the figure).

[0044] In summary, the double-head drilling machine based on the embodiment of the present application is explained, which provides the double-head drilling machine with advantages such as being suitable for application scenarios where the distance between two holes is large and a single side of the workpiece has multiple cutting holes.

[0045] It is worth mentioning that in the embodiment of the present application, the double-head drilling machine has a simple structure, does not involve complex manufacturing processes and expensive materials, and has high economic efficiency. At the same time, for manufacturers, the double-head drilling machine provided by the present application is easy to produce and has low cost, which is more conducive to controlling production costs and further conducive to product promotion and use.

[0046] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A double-head drilling machine, comprising a base, for processing a connecting rod, wherein one side of the connecting rod has a first groove, both ends of the connecting rod have a second groove, and both side walls of the second groove have a through hole, characterized in that: The double-head drilling machine also includes a placement seat for placing the connecting rod, the placement seat being fixedly mounted on the base, the placement seat having a protrusion, and when the connecting rod is placed on the placement seat, the protrusion extends into the first groove; and two clamping devices, the two clamping devices are respectively arranged at two ends of the placement seat, each of the clamping devices comprises a sliding member, the sliding member is slidably arranged on the placement seat, when the connecting rod is placed on the placement seat, the sliding member extends into the second groove and abuts against the connecting rod or the sliding member is separated from the second groove; and Two drilling devices, the two drilling devices are respectively located on both sides of the placement seat, each of the drilling devices includes a rotation drive device, a multi-axis device and a first linear drive device, the rotating shaft of the rotation drive device is connected to the multi-axis device, two drill bits are rotatably installed on the multi-axis device, the first linear drive device is arranged on the base, and the push rod of the first linear drive device is fixedly connected to the rotation drive device.

2. The double-head drilling machine according to claim 1, characterized in that: Each of the clamping devices includes a second linear drive device, a first connecting rod, a second connecting rod and a third connecting rod. Both ends of the placement seat have a slide groove, and the sliding member is slidably arranged in the slide groove. The second linear drive device is fixedly installed on the placement seat. The two ends of the first connecting rod are respectively rotatably connected to the push rod of the second linear drive device and the second connecting rod. The third connecting rod is located between the push rod of the second linear drive device and the sliding member, and the two ends of the third connecting rod are respectively rotatably connected to the placement seat and the first connecting rod. The end of the second connecting rod facing away from the first connecting rod is rotatably connected to the sliding member. When the push rod of the second linear drive device moves, the sliding member slides back and forth along the slide groove.

3. The double-head drilling machine according to claim 2, characterized in that: The double-head drilling machine also includes four auxiliary seats, and two auxiliary seats are provided on the side of each drilling device. Each auxiliary seat includes a guide rod and two support assemblies. The two support assemblies are connected to the base, and the two ends of the guide rod are fixedly connected to the two support assemblies respectively. Each of the two sides of the multi-axis device has an extension part, and the extension part corresponds to the guide rod one by one. Each extension part is slidably set on the corresponding guide rod.

4. The double-head drilling machine according to claim 3, characterized in that: Each of the drilling devices is slidably arranged on the base in the height direction of the base.

5. The double-head drilling machine according to claim 4, characterized in that: Each of the drilling devices is slidably arranged on the base in the width direction of the base.

6. The double-head drilling machine according to claim 5, characterized in that: Each of the support components is bolted to the base, and the base has a plurality of threaded holes in the width direction for being bolted to the support components.

7. The double-head drilling machine according to claim 6, characterized in that: Each of the support assemblies comprises a lower seat body and an upper seat body, the lower seat body has a waist-shaped groove in the height direction, the upper seat body is slidably arranged in the waist-shaped groove, the lower seat body is connected to the base bolts, and the upper seat body is connected to the guide rod.

8. The double-head drilling machine according to any one of claims 1 to 7, characterized in that: The base has a chip dropping opening.

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