A shaft pin hole machining equipment

By designing a pin hole machining equipment for shaft components and utilizing a combination of positioning components and machining devices, the problems of low automation and unstable machining quality in existing technologies have been solved, achieving efficient and stable pin hole machining.

CN224273365UActive Publication Date: 2026-05-26FOSHAN NANHAI HEXINFLEX METAL PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN NANHAI HEXINFLEX METAL PROD CO LTD
Filing Date
2025-03-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In the existing technology, the processing of pin holes for shafts suffers from low automation, low processing efficiency, and unstable processing quality. In particular, when chamfering the end of the pin hole, the workpiece is difficult to maintain its posture, resulting in poor chamfering quality.

Method used

A shaft pin hole machining equipment was designed, including a positioning component and two machining devices. The front end of the positioning component has a contour positioning groove and a clearance hole. The machining devices are equipped with machining drill bits, which can realize self-positioning drilling and chamfering of the workpiece. Combined with the feeding and unloading mechanism, the production efficiency and stability are improved.

Benefits of technology

It achieves efficient and stable machining of pin holes in shafts, improving machining efficiency and quality, especially in the alignment accuracy and consistency during chamfering at both ends of the pin hole.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a shaft pin hole machining device in the field of automated machining equipment technology, comprising: a positioning component and two machining devices. The front end of the positioning component is cylindrical and has a contour positioning groove extending forward and backward. Alternating holes communicating with the contour positioning groove are provided on both the left and right sides of the front end of the positioning component. The two machining devices are respectively located on the left and right sides of the positioning component. Both machining devices are equipped with machining drills facing the positioning component. The machining devices are used to drive the machining drills to rotate and feed in the left and right directions. The shaft pin hole machining device provided by this utility model has at least the following beneficial effects: the workpiece can be inserted into the contour positioning groove from the opening for positioning; the alternating holes in the positioning component expose the machining position of the workpiece; and the machining drills of the two machining devices perform drilling or chamfering machining on the workpiece within the contour positioning groove, thereby realizing the pin hole machining production of the workpiece, resulting in high production efficiency and stability.
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Description

Technical Field

[0001] This utility model relates to the field of automated processing equipment technology, and in particular to a shaft pin hole processing equipment. Background Technology

[0002] In the machining and production of shaft components, it is often necessary to machine pin holes radially on cylindrical shaft workpieces so that the shaft workpieces can be used in corresponding equipment. In existing technology, the machining of pin holes in shaft components is generally semi-automated by operators using a drill press. The operator loads the workpiece onto a fixture and then operates the drill press above the fixture to drill holes in the workpiece. However, when chamfering is required at the ends of the pin holes, both drilling and chamfering processes are necessary. The operator needs to transfer the workpiece from the drilling fixture to the chamfering fixture. Because the shaft workpiece is cylindrical, it is difficult to maintain its original posture after being transferred to the chamfering fixture, resulting in the pin hole not being fully aligned with the chamfering drill bit, affecting the chamfering quality. Moreover, when chamfering is required at both ends of the pin hole, manual operation is required to flip the workpiece over to achieve two chamfering processes. Therefore, existing shaft pin hole machining technology suffers from low automation, low processing efficiency, and unstable processing quality. Utility Model Content

[0003] The purpose of this utility model is to provide a shaft pin hole processing equipment to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows:

[0005] A shaft pin hole machining equipment includes: a positioning component and two machining devices;

[0006] The positioning element is used to position the workpiece being processed. The front end of the positioning element is cylindrical and has a contour positioning groove extending forward and backward. The left and right sides of the front end of the positioning element are provided with clearance holes that communicate with the contour positioning groove.

[0007] The two processing devices are respectively located on the left and right sides of the positioning member. Each processing device is equipped with a processing drill bit facing the positioning member. The processing device has a processing drive end that is connected to the processing drill bit to make the processing drill bit rotate and feed in the left and right direction.

[0008] The shaft pin hole machining equipment provided by this utility model has at least the following beneficial effects: the workpiece can be inserted into the contour positioning groove from the opening for positioning; the positioning part's clearance hole exposes the machining position of the workpiece; and the workpiece in the contour positioning groove is drilled or chamfered by the machining drill bits of two machining devices to achieve pin hole machining, resulting in high production efficiency and stability. The shaft pin hole machining equipment of this utility model can achieve shaft pin hole machining with more stable processing and high efficiency.

[0009] As a further improvement to the above technical solution, one of the machining drill bits includes a drilling section and a chamfering section, and the other machining drill bit has a machining end for chamfering.

[0010] As a further improvement to the above technical solution, the positioning component is fixedly disposed between the two processing devices, and a material unloading mechanism is provided on the rear side of the positioning component. A material unloading channel is provided on the rear side of the contour positioning groove. The material unloading mechanism includes a material unloading rod that is slidably disposed in the material unloading channel and a material unloading drive unit for driving the material unloading rod to move back and forth.

[0011] As a further improvement to the above technical solution, a feeding device is provided in front of the positioning component. The feeding device includes a feeding mechanism and a transfer mechanism. The feeding mechanism includes a feeding channel that is inclined at the front and low at the rear. A feeding positioning groove is provided at the rear end of the feeding channel. The transfer mechanism is used to drive the feeding mechanism to move back and forth.

[0012] As a further improvement to the above technical solution, a feeding clip is provided on the upper side of the feeding channel. The feeding clip has a storage space that extends vertically, and the lower end of the storage space is connected to the front end of the feeding channel.

[0013] As a further improvement to the above technical solution, a limiting part is provided at the front end of the feeding positioning groove.

[0014] As a further improvement to the above technical solution, the feeding device further includes a pushing mechanism located below the feeding mechanism. The pushing mechanism includes a pushing component located in front of the feeding positioning groove and a pushing drive component for driving the pushing component to move back and forth.

[0015] As a further improvement to the above technical solution, a feeding device for supplying the workpiece to be processed is provided in front of the positioning member, the positioning member is slidably arranged in the front-back direction, and the shaft pin hole processing equipment is provided with a material picking component for driving the positioning member to move back and forth.

[0016] As a further improvement to the above technical solution, the contour positioning groove is connected to the negative pressure generating element and the high-pressure air source through a control valve.

[0017] As a further improvement to the above technical solution, the positioning component is provided with a receiving tray on its lower side. The receiving tray is a box shape with an open upper side. The bottom of the receiving tray has a filter chip section with multiple filter chip holes. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a top view of an embodiment of the shaft pin hole processing equipment provided by this utility model;

[0020] Figure 2 yes Figure 1 A magnified view of a portion of region A in the middle;

[0021] Figure 3 This is a side sectional view of an embodiment of the shaft pin hole processing equipment provided by this utility model;

[0022] Figure 4 yes Figure 3 A magnified view of a portion of region B in the middle.

[0023] In the diagram: 100-positioning component, 110-contour positioning groove, 120-avoidance hole, 130-unloading channel, 140-unloading mechanism, 141-unloading rod, 142-unloading drive unit, 200-processing device, 210-processing drill bit, 211-first drill bit, 2111-drilling section, 2112-chamfering section, 212-second drill bit, 2121-processing end, 300-feeding device, 310-feeding mechanism, 311-feeding inclined plate, 312-feeding channel, 313-feeding positioning groove, 320-transfer mechanism, 330-pushing mechanism, 331-pushing component, 332-pushing drive component, 340-feeding clip, 400-receiving tray. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, if there are words such as "several", they mean one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Reference Figures 1 to 4 The shaft pin hole processing equipment of this utility model is illustrated in the following embodiments:

[0029] A shaft pin hole machining equipment includes: a positioning element 100 and two machining devices 200.

[0030] The positioning element 100 is used to position the workpiece being processed. Specifically, the front end of the positioning element 100 is cylindrical. The positioning element 100 is provided with a contour positioning groove 110 extending front and rear, and the front end of the contour positioning groove 110 has a forward-facing opening. The left and right sides of the front end of the positioning element 100 are provided with clearance holes 120 that communicate with the contour positioning groove 110.

[0031] The two processing devices 200 are respectively disposed on the left and right sides of the positioning member 100. Each of the two processing devices 200 is provided with a processing drill bit 210 facing the positioning member 100. The processing device 200 has a processing drive end that is pulsatorically connected to the processing drill bit 210 to make the processing drill bit 210 rotate and feed in the left and right direction.

[0032] In actual use, the workpiece can be inserted into the contour positioning groove 110 from the opening to achieve positioning. The positioning part 100 can measure the clearance hole 120 to expose the processing position of the workpiece. The workpiece in the contour positioning groove 110 is drilled or chamfered by the processing drill bit 210 of the two processing devices 200 to realize the pin hole processing of the workpiece, with high production efficiency and stability.

[0033] The shape and size of the contour positioning groove 110 are set according to the shape and size of the workpiece at the processing position. The contour structure enables the workpiece to be positioned, so that the two processing drill bits 210 can accurately process the workpiece.

[0034] In this embodiment, one of the machining drill bits 210 includes a drilling section 2111 and a chamfering section 2112, and the other machining drill bit 210 has a machining end 2121 for chamfering. The machining drill bits 210 of the two machining devices 200 are respectively a first drill bit 211 and a second drill bit 212. The root of the first drill bit 211 is connected to the machining drive end of the corresponding machining device 200, and the end of the first drill bit 211 has a drilling section 2111 and a chamfering section 2112, with the chamfering section 2112 located at the end of the drilling section 2111 away from the positioning member 100. The root of the second drill bit 212 is connected to the machining drive end of the corresponding machining device 200, and the end of the second drill bit 212 has a machining end 2121.

[0035] It is understood that the diameter of the drilling section 2111 is set according to the diameter of the required pin hole, the diameter of the chamfering section 2112 is larger than the diameter of the drilling section 2111, and the drilling edges of the machining end 2121 and the chamfering section 2112 are set according to the required chamfering parameters. Referring to the attached drawings, the first drill bit 211 is located on the right side of the positioning member 100, and the second drill bit 212 is located on the left side of the positioning member 100. In actual use, the drilling section 2111 passes through the clearance hole 120 from right to left and processes a through pin hole along the radial direction of the workpiece. At the same time, the chamfering section 2112 processes a chamfer on the right side of the workpiece, coaxial with the pin hole. Afterwards, the machining device 200 drives the first drill bit 2111 to reset, and the second drill bit 212 feeds to the right to process another chamfer on the left side of the workpiece, coaxial with the pin hole.

[0036] In this embodiment, the processing device 200 can be an existing modular electric micro drill rig, which can both drive the processing drill bit 210 to rotate at high speed and achieve axial feed of the processing drill bit 210 by driving the drill rod to extend and retract. In other embodiments, the processing device 200 includes a linear module and a drive motor. The output shaft of the drive motor is coaxially connected to the processing drill bit 210. The linear module drives the drive motor and the processing drill bit 210 to move axially, thereby realizing drilling.

[0037] In this application, the workpiece can be fed through two implementation methods.

[0038] In a first embodiment, the positioning member 100 is fixedly disposed between the two processing devices 200. A feeding device 300 is provided in front of the positioning member 100, and the feeding device 300 includes a feeding mechanism 310 and a transfer mechanism 320.

[0039] The feeding mechanism 310 includes a feeding ramp 311 that is inclined at the front and lower at the rear. Guide baffles are provided at both ends of the upper side of the feeding ramp 311. The two guide baffles and the feeding ramp 311 form a feeding channel 312 that is higher at the front and lower at the rear. A feeding positioning groove 313 is provided at the rear end of the feeding channel 312. The transfer mechanism 320 is used to drive the feeding mechanism 310 to move back and forth.

[0040] The feeding positioning groove 313 is flush with the contour positioning groove 110 so that the workpiece on the feeding positioning groove 313 can be aligned front-to-back with the contour positioning groove 110. When the transfer mechanism 320 drives the feeding mechanism 310 to move backward, it can transport the workpiece on it to the positioning member 100 through the feeding positioning groove 313. In some embodiments, the transfer mechanism 320 can be a linear module arranged front-to-back. The feeding mechanism 310 is mounted on the slide of the transfer mechanism 320, and the front-to-back movement of the feeding mechanism 310 is controlled by a motor-driven lead screw. In other embodiments, the feeding mechanism 310 can be slidably arranged in the front-to-back direction by a linear slide rail, and the transfer mechanism 320 uses linear drive elements such as cylinders, electric push rods, and hydraulic push rods to drive the feeding mechanism 310 to move back and forth.

[0041] In actual use, when the shaft to be processed is in the feeding channel 312, it can slide backward under its own weight, thereby achieving continuous material output. The workpiece can fall into the feeding positioning groove 313 at the rear end of the feeding channel 312. The transfer mechanism 320 drives the feeding mechanism 310 to move backward, so that the workpiece in the feeding positioning groove 313 can be inserted into the contour positioning groove 110 from front to back, realizing material loading.

[0042] In some embodiments, the front end of the feeding positioning groove 313 has a limiting portion. The limiting portion can press and limit the front end of the workpiece, thereby allowing the workpiece to be inserted rearward into the positioning member 100. In this embodiment, in order for the rear end of the workpiece to be inserted into the contour positioning groove 110, the length of the feeding positioning groove 313 cannot exceed the axial length of the workpiece, so that the rear end of the workpiece can be suspended. Therefore, the feeding positioning groove 313 in this embodiment can only provide stable support for workpieces with a long axial dimension.

[0043] In other embodiments, for workpieces with a short axial length, the length of the feeding positioning groove 313 is not less than the axial length of the workpiece to prevent the workpiece from falling off the feeding positioning groove 313. In these embodiments, to enable the workpiece to be inserted into the contour positioning groove 110 of the positioning member 100, the feeding device 300 further includes a pushing mechanism 330. The pushing mechanism 330 is located below the feeding mechanism 310. The pushing mechanism 330 includes a pushing member 331 and a pushing driving member 332. The pushing member 331 is located at the front of the feeding positioning groove 313, and the pushing driving member 332 is used to drive the pushing member 331 to move back and forth relative to the feeding positioning groove 313.

[0044] In actual use, after the workpiece slides from the rear end of the feeding channel 312 into the feeding positioning groove 313, the pusher 331 is positioned at the front of the workpiece. When the feeding device 300 moves backward to the front of the positioning member 100, the pusher drive member 332 drives the pusher 331 to move backward, pushing the workpiece backward so that it slides backward along the feeding positioning groove 313 until the rear end of the workpiece is inserted into the positioning member 100 for drilling and chamfering.

[0045] To facilitate workpiece unloading after processing, in this embodiment, a discharge channel 130 is provided on the rear side of the contour positioning groove 110, and a discharge mechanism 140 is provided on the rear side of the positioning member 100. The discharge mechanism 140 includes a discharge rod 141 and a discharge drive unit 142. The discharge rod 141 slides forward and backward within the discharge channel 130, and the discharge drive unit 142 drives the discharge rod 141 to move forward and backward. In actual use, the discharge drive unit 142 can drive the discharge rod 141 to move forward, and the discharge rod 141 extends forward along the discharge channel 130, pushing the workpiece forward from the contour positioning groove 110 to achieve unloading, so that the next workpiece can be inserted and positioned for processing. The push drive component 332 and the discharge drive unit 142 can be linear drive components such as cylinders, electric push rods, hydraulic push rods, or lead screw and nut drive assemblies.

[0046] To collect the finished workpieces, a receiving tray 400 is provided on the lower side of the positioning member 100. The receiving tray 400 is a box-shaped structure with an open upper side. After the workpiece is ejected from the contour positioning groove 110 of the positioning member 100, it can fall into the receiving tray 400, thereby being loaded or guided to the receiving container. Furthermore, to prevent machining debris from drilling and chamfering from affecting the workpieces in the receiving tray 400, the bottom of the receiving tray 400 has a chip filter section with multiple chip filter holes. Machining debris can fall through the chip filter section and will not remain in the receiving tray 400. A chip collector can be provided on the lower side of the chip filter section to collect the machining debris.

[0047] In a further embodiment, to increase the workpiece capacity of the feeding device 300 and avoid frequent feeding, a feeding clip 340 is provided on the upper side of the feeding channel 312. The feeding clip 340 has a vertically extending storage space, the lower end of which is connected to the front end of the feeding channel 312. Workpieces to be processed can be arranged and stored in the storage space, and fall sequentially into the feeding channel 312 under their own weight, and slide backward along the feeding channel 312 for discharge.

[0048] In the first embodiment described above, the workpiece is fed by the forward and backward movement of the feeding device 300. The positioning member 100 can be fixed in place to prevent movement, thus achieving high workpiece processing accuracy. However, the forward and backward movement of the feeding device 300 involves a large load and requires a high start-stop response, which has a certain impact on efficiency.

[0049] In the second embodiment, the feeding device 300 is fixedly disposed in front of the positioning member 100, the positioning member 100 is slidably disposed in the front-back direction, and the rear side of the positioning member 100 is provided with a material picking component for driving the positioning member 100 to move back and forth.

[0050] In actual use, the material-taking component drives the positioning component 100 forward to dock with the feeding device 300, thereby enabling the workpiece to be smoothly fed into the contour positioning groove 110. The two processing devices 200 can be set according to the front limit position or the rear limit position of the positioning component 100.

[0051] In a further embodiment, to enable the workpiece to move backward following the positioning element 100 after loading and to be quickly unloaded after processing, the contour positioning groove 110 is connected to a negative pressure generating element and a high-pressure air source via a control valve. When the control valve connects the contour positioning groove 110 to the negative pressure generating element, the negative pressure can create an adsorption effect on the workpiece, causing the workpiece to be pressed tightly against the contour positioning groove 110. When the control valve connects the contour positioning groove 110 to the high-pressure air source, the airflow can push the workpiece forward from the contour positioning groove 110.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] Although embodiments of the present invention have been shown and described, those skilled in the art can make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention. All such changes, modifications, equivalent alterations or substitutions are included within the scope defined by the claims of this application, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A shaft piece pin hole processing apparatus characterized by comprising: include: Positioning components and two processing devices; The positioning element is used to position the workpiece being processed. The front end of the positioning element is cylindrical and has a contour positioning groove extending forward and backward. The left and right sides of the front end of the positioning element are provided with clearance holes that communicate with the contour positioning groove. The two processing devices are respectively located on the left and right sides of the positioning member. Each processing device is equipped with a processing drill bit facing the positioning member. The processing device has a processing drive end that is connected to the processing drill bit to make the processing drill bit rotate and feed in the left and right direction.

2. The shaft spool hole machining apparatus according to claim 1, characterized by: One of the machining drill bits includes a drilling section and a chamfering section, and the other machining drill bit has a machining end for chamfering.

3. The shaft spool hole machining apparatus of claim 1 wherein: The positioning component is fixedly disposed between the two processing devices. A material unloading mechanism is provided on the rear side of the positioning component. A material unloading channel is provided on the rear side of the contour positioning groove. The material unloading mechanism includes a material unloading rod that is slidably disposed in the material unloading channel and a material unloading drive unit for driving the material unloading rod to move back and forth.

4. The shaft hole machining apparatus according to claim 3, characterized by: The positioning component is provided with a feeding device in front of it. The feeding device includes a feeding mechanism and a transfer mechanism. The feeding mechanism includes a feeding channel that is inclined at the front and low at the rear. The feeding channel is provided with a feeding positioning groove at the rear end. The transfer mechanism is used to drive the feeding mechanism to move back and forth.

5. The shaft spool hole machining apparatus of claim 4, wherein: The upper side of the feeding channel is provided with a feeding clip, which has a storage space extending vertically, and the lower end of the storage space is connected to the front end of the feeding channel.

6. The shaft hole machining apparatus according to claim 4, characterized by: The front end of the feeding positioning groove is provided with a limiting part.

7. The shaft hole machining apparatus according to claim 4, characterized by: The feeding device further includes a pushing mechanism located below the feeding mechanism. The pushing mechanism includes a pushing component located in front of the feeding positioning groove and a pushing drive component for driving the pushing component to move back and forth.

8. The shaft hole machining apparatus according to claim 1, characterized by: The positioning member is provided with a feeding device for supplying the workpiece to be processed in front of it. The positioning member is slidably arranged in the front-back direction. The shaft pin hole processing equipment is provided with a material picking component for driving the positioning member to move back and forth.

9. The shaft hole machining apparatus according to any one of claims 3 or 8, characterized by: The contour positioning groove is connected to the negative pressure generating element and the high-pressure air source through a control valve.

10. The shafting pin bore machining apparatus of claim 1 wherein: The positioning component has a receiving tray on its lower side. The receiving tray is a box shape with an open upper side. The bottom of the receiving tray has a filter section with multiple filter holes.