Blind hole machining device for side wall of parts used in common drilling machine

Abstract

The utility model relates to the field of drilling machine processing, concretely relates to a part side wall blind hole processing device for ordinary drilling machine, including flexible drill bit drive assembly, 90 degrees connecting frame and clamping assembly, flexible drill bit drive assembly includes driving part, flexible connecting piece and drill bit, and driving part is used for providing driving force, and the both ends of flexible connecting piece are connected in driving part's power output end and the end of drill bit respectively, 90 degrees connecting frame includes pressure access, drill bit positioning part and guide bush, and the upper end of pressure access is connected in the lower pressure part of drilling machine, and the lower end of pressure access is connected with drill bit positioning part and forms first positioning hole, and first positioning hole is used for positioning driving part's power output end, and the second positioning hole is set up on drill bit positioning part, and first positioning hole and second positioning hole are 90 degrees, and the both ends of guide bush are respectively clamped in first positioning hole and second positioning hole to form guide channel, and the both ends of flexible connecting piece are 90 degrees turning.

Description

Technical Field

[0001] This utility model relates to the field of drilling machine processing, specifically to a device for processing blind holes on the sidewalls of parts using a common drilling machine. Background Technology

[0002] In the field of mechanical manufacturing and processing, bushings, housings, and other similar parts are widely used. The structural design of these parts often requires the machining of blind holes in the side walls to meet assembly, connection, or functional requirements. However, traditional drilling machines are primarily designed for drilling the planes or end faces of parts, with their spindle direction parallel or perpendicular to the worktable. This, to some extent, limits their application in machining blind holes in the side walls of parts.

[0003] Specifically, when machining blind holes on the inner wall of bushing-type parts, the fixed spindle direction of a conventional drilling machine makes it impossible to directly machine 90-degree corners, thus hindering the direct machining of blind holes on the sidewalls of the part. Forcibly achieving this by adjusting the part's position or the drilling machine angle is not only complex but also makes it difficult to guarantee machining accuracy and efficiency. Utility Model Content

[0004] In view of this, the present invention provides a blind hole machining device for the side wall of a part using a conventional drilling machine, so as to solve the technical problem that conventional drilling machines cannot directly achieve 90-degree corner machining, which makes it difficult to directly machine blind holes on the side wall of a part.

[0005] To achieve the above objectives, this application adopts the following approach: A device for machining blind holes on the sidewalls of parts using a conventional drilling machine includes a flexible drilling assembly, a 90-degree connecting frame, and a clamping assembly. The flexible drilling assembly includes a driving component, a flexible connecting component, and a drill bit. The driving component provides rotational driving force. The two ends of the flexible connecting component are respectively connected to the power output end of the driving component and the end of the drill bit, for transmitting the power of the driving component to the drill bit, causing the drill bit to rotate. The 90-degree connecting frame includes a pressure receiving component, a drill bit positioning component, and a guide sleeve. The upper end of the pressure receiving component is connected to the lower pressing part of the drilling machine, and the lower end of the pressure receiving component is connected to the drill bit positioning component. A first positioning hole is formed by connecting and positioning the power output end of the drive component. A second positioning hole is provided on the drill bit positioning component. The axes of the first positioning hole and the second positioning hole are at 90 degrees. The second positioning hole is used to position the direction of the rotation center of the drill bit. The two ends of the guide sleeve are respectively engaged with the first positioning hole and the second positioning hole to form a guide channel, so that the two ends of the flexible connector are rotated at 90 degrees. The clamping assembly is used to hold the part that needs to be machined with a blind hole on the side wall, and clamps the part so that the machining point of the blind hole is located in the direction of the rotation center of the drill bit.

[0006] Preferably, the pressure access component has a connecting part at its upper end, which is used to connect to the Morse taper shank on the drill spindle, thereby improving the positioning accuracy when the drill bit is pressed down.

[0007] Preferably, the lower end of the connecting part is provided with a first semi-circular mounting seat, and one side of the drill bit positioning component is provided with a second semi-circular mounting seat. At least one pair of connecting holes are provided on both sides of the first semi-circular mounting seat and the second semi-circular mounting seat, and each pair of connecting holes is connected to form the first positioning hole between the first semi-circular mounting seat and the second semi-circular mounting seat.

[0008] Preferably, the horizontal distance between the connecting part and the center of the second positioning hole is the first distance, and the horizontal distance between the outermost part of the workpiece to be processed near the connecting part and the processing point of the blind hole is the second distance, wherein the first distance is greater than the second distance.

[0009] Preferably, a fastening retaining ring is provided on the other side of the drill bit positioning component. The fastening retaining ring is composed of two semi-circular retainers that form the second positioning hole. There is a fastening gap between the two semi-circular retainers, and the two semi-circular retainers at this location are provided with a pair of fastening holes. Fasteners are provided on the pair of fastening holes for adjusting the fastening gap.

[0010] Preferably, the clamping assembly includes a longitudinal positioning member, which has a positioning groove inside, and the positioning groove is used for longitudinal positioning of the part with the blind hole to be machined.

[0011] Preferably, the longitudinal positioning element is a vise.

[0012] Preferably, the clamping assembly includes a V-shaped block disposed in the positioning groove for limiting and positioning the part with a blind hole to be machined, which rolls in the transverse direction with the longitudinal axis as the axis.

[0013] Preferably, the clamping assembly includes a point alignment component, which is disposed in the positioning groove and located on one side of the V-block. The point alignment component has a drill bit positioning hole. When the part is clamped by the positioning groove and the V-block, the drill bit positioning hole is aligned with the processing point of the part.

[0014] Preferably, a wear-resistant drill sleeve is provided on the drill bit positioning hole.

[0015] The blind hole machining device for the sidewall of a part provided in this application utilizes a clamping assembly to securely hold the part to be machined. A flexible drilling assembly is mounted on a 90-degree connecting frame. The end of the drill bit is connected to a second positioning hole via a guide sleeve. This second positioning hole is used to position the direction of the drill bit's rotation center, achieving a 90-degree turn. The lower pressure part of the drill press is tightly connected to the upper end of the pressure access component of the 90-degree connecting frame, providing stable downward pressure to the drill bit. When the drive unit is activated, the rotational driving force is transmitted to the drill bit through the flexible connecting component. Simultaneously, the lower pressure part of the drill press applies pressure, driving the drill bit to perform blind hole machining on the sidewall of the part. Through the synergistic effect of the 90-degree connecting frame and the flexible drilling assembly, this device successfully overcomes the limitations of the spindle direction of a conventional drill press, achieving 90-degree turning machining of blind holes on the sidewall of the part. This significantly expands the machining range of the conventional drill press, achieving efficient machining of blind holes on the sidewall of the part, and effectively reducing production costs and equipment investment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a partial structural schematic diagram of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the second semicircular mounting base in this utility model.

[0019] Figure 4 This is a schematic diagram of the point alignment component in this utility model.

[0020] Figure 5 This is a cross-sectional view of the present invention.

[0021] In the figure, there are flexible drilling assembly 100, drive component 110, flexible connector 120, drill bit 130, 90-degree connecting frame 200, pressure access component 210, drill bit positioning component 220, first semi-circular mounting base 221, second semi-circular mounting base 222, first positioning hole 223, connecting hole 224, fastening ring 225, second positioning hole 226, fastening hole 227, guide sleeve 230, clamping assembly 300, longitudinal positioning component 310, V-block 320, point alignment component 330, drill bit positioning hole 331, and part 400. Detailed Implementation

[0022] To facilitate understanding of this application, a more comprehensive description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are also given. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of this application.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Please refer to Figures 1 to 5 In one specific embodiment, a device for machining blind holes on the sidewalls of parts using a conventional drilling machine includes a flexible drilling assembly 100, a 90-degree connecting frame 200, and a clamping assembly 300. The flexible drilling assembly 100 includes a drive member 110, a flexible connecting member 120, and a drill bit 130. The drive member 110 provides a rotational driving force. The two ends of the flexible connecting member 120 are respectively connected to the power output end of the drive member 110 and the end of the drill bit 130, for transmitting the power of the drive member 110 to the drill bit 130, causing the drill bit 130 to rotate. The 90-degree connecting frame 200 includes a pressure inlet member 210, a drill bit positioning member 220, and a guide sleeve 230. The upper end of the pressure inlet member 210 is connected to the lower pressing part of the drilling machine, and the lower end of the pressure inlet member 210... The end is connected to the drill bit positioning member 220 to form a first positioning hole 223. The first positioning hole 223 is used to position the power output end of the drive member 110. The drill bit positioning member 220 is provided with a second positioning hole 226. The axes of the first positioning hole 223 and the second positioning hole 226 are at 90 degrees. The second positioning hole 226 is used to position the direction of the rotation center of the drill bit 130. The two ends of the guide sleeve 230 are respectively engaged with the first positioning hole 223 and the second positioning hole 226 to form a guide channel, so that the two ends of the flexible connector 120 are rotated at 90 degrees. The clamping assembly 300 is used to hold the part 400 that needs to be processed for sidewall blind holes, and clamps the part 400 so that the processing point for processing the blind hole is located in the direction of the rotation center of the drill bit 130.

[0025] In use, the components of the blind hole machining device for the side wall of a part for a conventional drilling machine provided in this application must first be installed and connected to the machine tool to ensure normal operation. Specifically, the clamping assembly 300 is used to firmly clamp the part 400 to be machined, ensuring that the point for machining the blind hole is accurately aligned with the rotation center of the drill bit 130. Then, the flexible drilling assembly 100 is installed onto the 90-degree connecting frame 200, ensuring that the power output end of the drive component 110 is aligned with the first positioning hole 223. The end of the drill bit 130 is connected to the second positioning hole 226 via the guide sleeve 230, achieving a 90-degree rotation. It should be noted that: while the second positioning hole 226 clamps the guide sleeve 230, it also cooperates with the guide sleeve 230 to restrict the position of the drill bit 130, so that it does not wobble from side to side while rotating; next, adjust the lower pressure part of the drill press to make it tightly connected with the upper end of the pressure access part 210 of the 90-degree connecting frame 200, so as to provide stable lower pressure for the drill bit 130; finally, start the drive part 110, and transmit the rotational driving force to the drill bit 130 through the flexible connecting part 120. At the same time, the lower pressure part of the drill press applies pressure to drive the drill bit 130 to perform blind hole processing on the side wall of the part 400.

[0026] Through the synergistic effect of the 90-degree connecting frame 200 and the flexible drilling assembly 100, the device successfully breaks through the limitation of the spindle direction of ordinary drilling machines, realizes the 90-degree turning machining of blind holes on the side wall of part 400, greatly expands the machining range of ordinary drilling machines, realizes efficient machining of blind holes on the side wall of part 400, and effectively reduces production costs and equipment investment.

[0027] The flexible connector 120 can be a steel wire rope or a fiber bundle.

[0028] Furthermore, the pressure access component 210 is provided with a connecting part at its upper end, which is used to connect to the Morse taper shank on the drill spindle, thereby improving the positioning accuracy when the drill bit 130 is pressed down.

[0029] This embodiment further refines and optimizes the aforementioned "pressure connector 210". Specifically, a connecting part is added to the upper end of the pressure connector 210, which is used to connect with the Morse taper shank on the drill spindle. In use, the connecting part at the upper end of the pressure connector 210 is aligned with the Morse taper shank on the drill spindle. Because the Morse taper shank has self-locking properties, during alignment, simply ensure that the tapers of both parts match, and then gently rotate or push in to achieve a stable connection. The Morse taper shank is a standardized connecting component widely used in the machine tool field, characterized by its ability to provide high-precision and high-stability connections. In this embodiment, this connection method ensures a more stable and precise connection between the pressure connector 210 and the drill spindle, thereby improving the positioning accuracy of the drill bit 130 and reducing machining errors when the drill bit 130 is pressed down for blind hole machining.

[0030] Furthermore, a first semi-circular mounting base 221 is provided at the lower end of the connecting part, and a second semi-circular mounting base 222 is provided on one side of the drill bit positioning component 220. At least one pair of connecting holes 224 are provided on both sides of the first semi-circular mounting base 221 and the second semi-circular mounting base 222, and each pair of connecting holes 224 is connected to form the first positioning hole 223 between the first semi-circular mounting base 221 and the second semi-circular mounting base 222.

[0031] A first semi-circular mounting base 221 is provided at the lower end of the connecting part, and a second semi-circular mounting base 222 is provided on one side of the drill bit positioning component 220. The design of these two semi-circular mounting bases allows them to mate with each other to form a complete circular positioning hole, namely the first positioning hole 223. To achieve this mating, at least one pair of connecting holes 224 are provided on both sides of each semi-circular mounting base. Each pair of connecting holes 224 is connected by bolts or other connectors, thereby ensuring that the first semi-circular mounting base 221 and the second semi-circular mounting base 222 can be firmly joined to form the first positioning hole 223.

[0032] During operation, first, ensure that the lower end of the connecting part has been installed with the first semicircular mounting base 221, and at the same time, prepare the second semicircular mounting base 222 on one side of the drill bit positioning component 220. Make the power output end of the driving component 110 located in either semicircular mounting base, and make one end of the guide sleeve 230 (the flexible connector 120 is located in the guide sleeve 230) also located in the semicircular mounting base. Then, align the second semicircular mounting base 222 with the first semicircular mounting base 221, ensuring that the contact surfaces of the two semicircular mounting bases are flat and without gaps. Use bolts or other connectors to connect the connecting holes 224 on both sides of the first semicircular mounting base 221 and the second semicircular mounting base 222 one by one, and tighten the bolts so that the power output end of the driving component 110 is located in the formed first positioning hole 223.

[0033] The semi-circular mounting base design makes the assembly and disassembly of the device simpler and faster, which helps to improve production efficiency.

[0034] Furthermore, the horizontal distance between the connecting portion and the center of the second positioning hole 226 is the first distance, and the horizontal distance between the outermost part of the workpiece 400 near the connecting portion and the processing point of the blind hole is the second distance, with the first distance being greater than the second distance. This arrangement is intended to prevent the connecting portion at the upper end of the pressure inlet 210 from directly contacting the workpiece 400 when the first distance is less than the second distance, thus preventing normal operation.

[0035] In one specific embodiment, a fastening retaining ring 225 is provided on the other side of the drill bit positioning component 220. The fastening retaining ring 225 is composed of two semi-circular retainers and forms the second positioning hole 226. There is a fastening gap between the two semi-circular retainers, and the two semi-circular retainers at this location are provided with a pair of fastening holes 227. Fasteners are provided on the pair of fastening holes 227 for adjusting the fastening gap.

[0036] In this embodiment, a fastening retaining ring 225 is provided on the other side of the drill bit positioning component 220. The fastening retaining ring 225 consists of two semi-circular retainers, which, when joined together, form a complete circular positioning hole, namely the second positioning hole 226. A certain fastening gap is left between the two semi-circular retainers, which can be adjusted by the paired fastening holes 227 provided on the semi-circular retainers and fasteners. Fasteners (such as bolts, nuts, etc.) tightly connect the two semi-circular retainers together through the fastening holes 227. At the same time, the fastening gap can be changed by adjusting the tightness of the fasteners, thereby adapting to drill bits 130 of different sizes or meeting different processing requirements.

[0037] In use: Insert the other end of the guide sleeve 230 into the second positioning hole 226, which consists of two semi-circular clips, ensuring that the drill bit 130 is aligned with the center of the positioning hole. Based on the dimensions of the other end of the guide sleeve 230, use fasteners (such as bolts or nuts) to tightly connect the two semi-circular clips together through the paired fastening holes 227. During the connection process, the tightness of the fasteners can be adjusted appropriately to change the fastening distance, ensuring that the guide sleeve 230 is securely clamped in the second positioning hole 226, reducing processing quality problems caused by vibration or loosening.

[0038] Considering that during the blind hole machining process of part 400, part 400 will move longitudinally due to vibration, affecting the machining accuracy, the clamping assembly 300 further includes a longitudinal positioning member 310, which has a positioning groove inside. The positioning groove is used to longitudinally position part 400 with blind hole to be machined.

[0039] When using it, first select or design a suitable longitudinal positioning component 310 according to the size and shape of the part 400 to be processed, and ensure that the size and shape of its internal positioning groove match the part 400. Then, put the part 400 with the blind hole to be processed into the positioning groove of the longitudinal positioning component 310, adjust the position of the part 400 so that its longitudinal axis coincides with the center line of the positioning groove, and ensure that the part 400 is stably positioned in the longitudinal direction.

[0040] The design of the longitudinal positioning component 310 ensures the longitudinal stability of part 400 during the machining process, reduces machining errors caused by displacement of part 400, and improves the machining accuracy of blind holes.

[0041] Preferably, the longitudinal positioning element 310 is a vise.

[0042] During the processing, the part 400 may roll due to force, resulting in processing errors. To ensure the stability and accuracy of the processing, in a preferred embodiment, the clamping assembly 300 includes a V-block 320, which is disposed in the positioning groove for limiting and positioning the part 400 with the blind hole to be processed, with the longitudinal axis as the axis and the transverse direction as the rolling direction.

[0043] V-block 320 effectively restricts the rolling of part 400 in the lateral direction, reduces machining errors caused by the displacement of part 400, and improves the machining accuracy of blind holes. When used in conjunction with longitudinal positioning element 310, V-block 320 enhances the stability of the entire machining process and reduces machining quality problems caused by vibration or loosening.

[0044] To avoid deviation between the processed blind hole position and the predetermined position, the clamping assembly 300 further includes a point alignment member 330. The point alignment member 330 is disposed in the positioning groove and located on one side of the V-block 320. The point alignment member 330 has a drill bit positioning hole 331. When the part 400 is clamped by the positioning groove and the V-block 320, the drill bit positioning hole 331 is aligned with the processing point of the part 400. The point alignment member 330 can be an L-shaped positioning member. One end of the L-shaped positioning member is located on the part, and the other end of the L-shaped positioning member is disposed in the positioning groove and located on one side of the V-block 320.

[0045] In actual machining, the precise guidance of the alignment component 330 greatly improves the positional accuracy of the blind hole, meeting the machining requirements of high-precision parts 400. For example, in machining some mechanical parts 400 with strict requirements for blind hole positional tolerances, using this device can effectively reduce the scrap rate.

[0046] In a preferred embodiment, a wear-resistant drill sleeve is provided on the drill bit positioning hole 331.

[0047] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model.

Claims

1. A device for machining blind holes on the sidewalls of parts using a conventional drilling machine, characterized in that, The system includes a flexible drilling assembly, a 90-degree connecting frame, and a clamping assembly. The flexible drilling assembly includes a drive component, a flexible connecting component, and a drill bit. The drive component provides rotational driving force. The two ends of the flexible connecting component are respectively connected to the power output end of the drive component and the end of the drill bit, for transmitting the power of the drive component to the drill bit, causing the drill bit to rotate. The 90-degree connecting frame includes a pressure inlet component, a drill bit positioning component, and a guide sleeve. The upper end of the pressure inlet component is connected to the lower pressing part of the drilling machine, and the lower end of the pressure inlet component is connected to the drill bit positioning component to form a first positioning. The first positioning hole is used to position the power output end of the drive component. The drill bit positioning component has a second positioning hole. The axes of the first positioning hole and the second positioning hole are at 90 degrees. The second positioning hole is used to position the direction of the rotation center of the drill bit. The two ends of the guide sleeve are respectively engaged with the first positioning hole and the second positioning hole to form a guide channel, so that the two ends of the flexible connector are rotated at 90 degrees. The clamping assembly is used to hold the part that needs to be machined with a blind hole on the side wall, and clamp the part so that the machining point of the blind hole is located in the direction of the rotation center of the drill bit.

2. The blind hole machining device for the side wall of a part on a conventional drilling machine according to claim 1, characterized in that, The pressure access component has a connecting part at its upper end, which is used to connect to the Morse taper shank on the drill spindle, thereby improving the positioning accuracy when the drill bit is pressed down.

3. The blind hole machining device for the side wall of a part on a conventional drilling machine according to claim 2, characterized in that, The lower end of the connecting part is provided with a first semi-circular mounting seat, and one side of the drill bit positioning component is provided with a second semi-circular mounting seat. At least one pair of connecting holes are provided on both sides of the first semi-circular mounting seat and the second semi-circular mounting seat, and each pair of connecting holes is connected to form the first positioning hole between the first semi-circular mounting seat and the second semi-circular mounting seat.

4. The blind hole machining device for the side wall of a part on a conventional drilling machine according to claim 2, characterized in that, The horizontal distance between the connecting part and the center of the second positioning hole is the first distance, and the horizontal distance between the outermost part of the workpiece to be processed near the connecting part and the processing point of the blind hole is the second distance. The first distance is greater than the second distance.

5. The blind hole machining device for the side wall of a part on a conventional drilling machine according to claim 3, characterized in that, On the other side of the drill bit positioning component, a fastening retainer is provided. The fastening retainer consists of two semi-circular retainers that form the second positioning hole. There is a fastening gap between the two semi-circular retainers, and the two semi-circular retainers at this location are provided with a pair of fastening holes. Fasteners are provided on the pair of fastening holes for adjusting the fastening gap.

6. The blind hole machining device for the side wall of a part on a conventional drilling machine according to claim 1, characterized in that, The clamping assembly includes a longitudinal positioning member, which has a positioning groove inside. The positioning groove is used to longitudinally position the part with the blind hole to be machined.

7. The blind hole machining device for the side wall of a part on a conventional drilling machine according to claim 6, characterized in that, The longitudinal positioning component is a vise.

8. The blind hole machining device for the side wall of a part on a conventional drilling machine according to claim 6, characterized in that, The clamping assembly includes a V-shaped block disposed within the positioning groove for restricting and positioning the part with a blind hole to be machined, which rolls in the transverse direction with the longitudinal axis as the axis.

9. The blind hole machining device for the side wall of a part on a conventional drilling machine according to claim 8, characterized in that, The clamping assembly includes a point alignment component, which is disposed in the positioning groove and located on one side of the V-block. The point alignment component has a drill bit positioning hole. When the part is clamped by the positioning groove and the V-block, the drill bit positioning hole is aligned with the processing point of the part.

10. The apparatus for machining blind holes on the sidewalls of parts using a conventional drilling machine according to claim 8, characterized in that, A wear-resistant drill sleeve is provided on the drill bit positioning hole.

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