A thread rolling and knurling integrated processing equipment

Abstract

The present application relates to an integrated thread rolling and knurling processing device, comprising a frame, a fixed bracket mounted on the frame, and a movable bracket movably mounted on the frame, wherein a thread rolling and knurling assembly is mounted on each of the fixed bracket and the movable bracket, the two thread rolling and knurling assemblies being arranged opposite each other, and the frame having a workpiece placement platform between the two thread rolling and knurling assemblies; the thread rolling and knurling assembly comprises a rotating shaft and a knurling wheel mounted on the rotating shaft, the rotating shaft having at least one thread rolling wheel mounted on one or both sides of the knurling wheel. By combining the thread rolling and knurling wheels on a rotating shaft, the present application enables knurling and thread rolling to be completed on a shaft workpiece in one go, thereby effectively improving processing efficiency. The shaft workpiece does not need to be transferred to another device for processing, reducing handling and turnover time. The processed product is highly consistent due to the one-time processing, thereby effectively improving the yield rate of the shaft workpiece.

Description

Technical Field

[0001] The present application relates to the technical field of shaft product processing equipment, and in particular to a thread rolling and knurling integrated processing equipment. Background Art

[0002] The thread rolling machine is a multifunctional cold extrusion forming machine tool, including two-axis thread rolling machine and three-axis thread rolling machine. Within the rolling range, it can roll threads, straight grains and diagonal grains on the workpiece, and can also roll straight teeth, helical teeth and helical spline teeth, as well as perform forming rolling such as straightening, diameter reduction and rolling.

[0003] The Chinese patent with the current announcement number CN217647399U discloses a new type of thread rolling machine, including a chassis, a first square box, and a second square box. The first square box and the second square box are arranged in a corresponding manner in the chassis; the fixed cutter disc is installed in the first square box, and the sliding tool holder is movably arranged in the second square box; the thread rolling mechanism is installed on the two cutter discs respectively; the adjustment top screw is installed at intervals in each square box, and its active end is respectively abutted against the upper ends of the two cutter discs for adjusting the angles of the two cutter discs; the adjustment screw is installed in the first square box, and the adjustment screw is connected to the fixed cutter disc for transmission and is used to adjust the fixed cutter disc forward and backward.

[0004] The aforementioned thread rolling machine can perform thread rolling on shaft-type workpieces. However, the inventors discovered that a motor shaft, a common shaft workpiece, requires a knurled key in the middle section and thread rolling at both ends. Using a thread rolling machine to roll the motor shaft requires first machining one end of the shaft and then the other end. The knurled key in the middle section of the motor shaft also requires machining on a separate piece of equipment, which is time-consuming and labor-intensive, resulting in low processing efficiency. Therefore, there is room for improvement. Summary of the Invention

[0005] In order to improve processing efficiency, the present application provides an integrated thread rolling and knurling processing device.

[0006] The present application provides a thread rolling and knurling integrated processing equipment adopting the following technical solutions:

[0007] A thread rolling and knurling integrated processing device includes a frame, a fixed bracket arranged on the frame, and a movable bracket movably arranged on the frame, wherein a thread rolling and knurling assembly is mounted on each of the fixed bracket and the movable bracket, and the two thread rolling and knurling assemblies are arranged opposite to each other, and the frame is provided with a workpiece placement table between the two thread rolling and knurling assemblies;

[0008] The thread rolling and knurling assembly includes a rotating shaft and a knurling wheel installed on the rotating shaft. The rotating shaft is provided with at least one thread rolling wheel installed on one side or both sides of the knurling wheel.

[0009] Optionally, a thread rolling wheel is installed on both sides of the knurling wheel on the rotating shaft, and the thread rolling wheels on both sides are spaced apart from the knurling wheel.

[0010] Optionally, the thread rolling and knurling assembly further includes two fixed blocks arranged at intervals, the two ends of the rotating shaft are respectively rotatably mounted on the two fixed blocks, the fixed bracket and the movable bracket are respectively provided with adjustment grooves, and the fixed blocks are fixed in the adjustment grooves by a bolt and nut assembly.

[0011] Optionally, a mounting ring is provided in the middle of the knurling wheel and the thread rolling wheel, the mounting ring is sleeved and mounted on the rotating shaft, and the mounting ring is fixed to the rotating shaft by bolts.

[0012] Optionally, the workpiece placement table includes a base arranged on the frame, and a storage table arranged on the base, the storage table is located between the two thread rolling and knurling assemblies, and the storage surface of the storage table extends along the rolling gap between the two thread rolling and knurling assemblies.

[0013] Optionally, a plurality of accommodating slots are provided on the storage surface of the storage table.

[0014] Optionally, at least two storage plates are fixed on the storage surface of the storage table, and the storage plates are located between the knurling wheel and the thread rolling wheel. Both ends of the storage plates have oblique blocking plates inclined toward the thread rolling and knurling assembly.

[0015] Optionally, the frame is provided with an annular air pipe surrounding the storage table, and the annular air pipe is provided with a plurality of nozzles, which are respectively located below the knurling wheel and the thread rolling wheel, and the nozzles are arranged toward the wheel surface of the knurling wheel and the thread rolling wheel, and the frame is provided with a blowing assembly connected to the annular air pipe.

[0016] Optionally, the blowing assembly includes an air cylinder fixed on the frame, a piston is provided in the air cylinder, an air inlet and an air outlet are provided on the air cylinder, an air inlet valve is installed on the air inlet, an air outlet valve is installed on the air outlet, the air outlet valve is connected to the annular air pipe through a conduit, and a driving component for driving the piston to reciprocate is provided on the thread rolling and knurling assembly.

[0017] Optionally, the driving component includes a cam and a linkage rod, the cam is mounted on the rotating shaft, the outer rim of the cam is provided with a linkage groove, a linkage slider is provided in the linkage groove, one end of the linkage rod is hinged to the piston, and the other end of the linkage rod is hinged to the linkage slider.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. This application combines a thread rolling wheel and a knurling wheel on a rotating shaft, so that the knurling and thread rolling of shaft workpieces can be completed at one time, thereby effectively improving the processing efficiency. Moreover, the knurling and thread rolling are completed at one time, and the shaft workpiece does not need to be transferred to another device for processing, which reduces the handling and turnover time. Moreover, by completing the processing at one time, the processed products have high consistency, avoiding the problem of qualified shaft workpieces being processed into unqualified workpieces during the processing of multiple devices, thereby effectively improving the yield rate of shaft workpieces.

[0020] 2. When machining shaft workpieces, the knurling wheel and the thread rolling wheel are used to perform abutment processing on the shaft workpiece at multiple points, which can achieve the effect of correcting the shaft workpiece and correct the original runout of the shaft workpiece during machining.

[0021] 3. The knurling wheel and the thread rolling wheel are combined on a rotating shaft. If a robot or a truss is used, the shaft workpiece can be directly picked up and placed on the workpiece placement table, so that it can be connected with other automated equipment to further improve processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall schematic diagram of the thread rolling and knurling integrated processing equipment.

[0023] Figure 2 It is a structural diagram of the thread rolling and knurling assembly.

[0024] Figure 3 It is a structural diagram of the workpiece placement table.

[0025] Figure 4 It is a schematic diagram of the working status of the thread rolling and knurling assembly.

[0026] Figure 5 This is a schematic diagram of the installation of the air blowing component.

[0027] Explanation of the accompanying drawings: 1. Frame; 2. Fixed bracket; 3. Movable bracket; 4. Thread rolling and knurling assembly; 41. Fixed block; 42. Rotating shaft; 43. Knurling wheel; 44. Thread rolling wheel; 45. Mounting ring; 5. Workpiece placement table; 51. Base; 52. Storage table; 53. Accommodating slot; 54. Storage plate; 55. Oblique baffle; 6. Adjustment slot; 7. Transmission mechanism; 71. Motor; 72. Gearbox; 73. Transmission shaft; 8. Annular air pipe; 9. Nozzle; 10. Blowing assembly; 101. Air cylinder; 102. Piston; 103. Conduit; 11. Driving component; 111. Cam; 112. Linkage rod. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-5 This application is described in further detail.

[0029] A thread rolling and knurling integrated processing equipment, refer to Figure 1 As shown, the machine comprises a frame 1, a fixed support 2 and a movable support 3. The fixed support 2 is fixedly mounted on the frame 1, and the movable support 3 is movably mounted on the frame 1. The fixed support 2 and the movable support 3 are arranged relative to each other. A hydraulic cylinder is provided on the frame 1, and an output rod of the hydraulic cylinder is connected to the movable support 3. Under the action of the hydraulic cylinder, the movable support 3 can move toward the fixed support 2.

[0030] Reference Figure 1 As shown, thread rolling and knurling assemblies 4 are installed on both the fixed bracket 2 and the movable bracket 3. The two thread rolling and knurling assemblies 4 are arranged opposite to each other. A workpiece placement table 5 is provided on the frame 1 between the two thread rolling and knurling assemblies 4. The shaft workpiece is placed on the workpiece placement table 5. The movable bracket 3 moves toward the side of the fixed bracket 2, so that the two thread rolling and knurling assemblies 4 are in contact with the shaft workpiece on the workpiece placement table 5, thereby completing the thread rolling and knurling processing on the shaft workpiece.

[0031] Reference Figure 2 As shown, the thread rolling and knurling assembly 4 includes a fixed block 41, a rotating shaft 42, a knurling wheel 43, and a thread rolling wheel 44. Two fixed blocks 41 are provided, and the two fixed blocks 41 are spaced apart. Adjustment slots 6 are provided on the fixed bracket 2 and the movable bracket 3 respectively. The fixed blocks 41 are fixed in the adjustment slots 6 by bolt and nut assemblies.

[0032] The two ends of the rotating shaft 42 are rotatably mounted on the fixed block 41 through bearings, and the knurling wheel 43 is mounted on the rotating shaft 42. Specifically, the knurling wheel 43 is mounted in the middle position of the rotating shaft 42, wherein at least one rolling wheel 44 is mounted on one side or both sides of the knurling wheel 43 of the rotating shaft 42.

[0033] In one embodiment, the rotating shaft 42 is mounted with at least one thread rolling wheel 44 on one side of the knurling wheel 43. In another embodiment, the rotating shaft 42 is mounted with at least one thread rolling wheel 44 on both sides of the knurling wheel 43. Specifically, the mounting position and number of thread rolling wheels 44 can be determined based on the machining requirements of the shaft workpiece and are not specifically limited in this embodiment. This embodiment uses the example of a rotating shaft 42 with one thread rolling wheel 44 mounted on each side of the knurling wheel 43, wherein the thread rolling wheels 44 on both sides are spaced apart from the knurling wheel 43.

[0034] It is worth noting that a mounting ring 45 is provided in the middle of the knurling wheel 43 and the thread rolling wheel 44. The mounting ring 45 is sleeved and mounted on the rotating shaft 42 and fixed to the rotating shaft 42 by bolts. As a result, the knurling wheel 43 and the thread rolling wheel 44 can be adjusted in their mounting positions on the rotating shaft 42. Moreover, by adjusting the position of the fixing block 41 on the corresponding fixed bracket 2 and the movable bracket 3, the wheel surfaces of the knurling wheel 43 and the thread rolling wheel 44 of the thread rolling knurling assembly 4 on the fixed bracket 2 and the thread rolling knurling assembly 4 on the movable bracket 3 are ensured to face each other, thereby achieving thread rolling and knurling processing on shaft workpieces.

[0035] Among them, reference Figure 1 As shown, the frame 1 is provided with a transmission mechanism 7 for driving the thread rolling and knurling assembly 4. The transmission mechanism 7 includes a motor 71, a gearbox 72, and a transmission shaft 73. The motor 71 is fixed to the frame 1, and the gearbox 72 is fixed to the frame 1. The gearbox 72 has an input shaft and two output shafts. The motor 71 is connected to the input shaft of the gearbox 72. The two output shafts of the gearbox 72 are connected to the rotating shafts 42 of the two thread rolling and knurling assemblies 4 via transmission shafts 73. The transmission shafts 73 are universal joints. As a result, when the motor 71 is running, the rotating shafts 42 of the two thread rolling and knurling assemblies 4 can rotate in the same direction through the gearbox 72.

[0036] Reference Figure 4 As shown, the present application combines a thread rolling wheel 44 and a knurling wheel 43 on a rotating shaft 42, so that the knurling and thread rolling of the shaft workpiece can be completed at one time, thereby effectively improving the processing efficiency. Moreover, the knurling and thread rolling are completed at one time, and the shaft workpiece does not need to be transferred to another device for processing, which reduces the handling and turnover time. Moreover, the one-time processing is completed, and the processed product has high consistency, avoiding the process of processing qualified shaft workpieces into unqualified workpieces during the processing of multiple devices, thereby effectively improving the yield rate of shaft workpieces. In addition, when the shaft workpiece is being processed, the knurling wheel 43 and the thread rolling wheel 44 perform abutment processing on the shaft workpiece at multiple points, which can achieve the effect of calibrating the shaft workpiece, and the original runout of the shaft workpiece during processing can be corrected.

[0037] Reference Figure 3 As shown, the workpiece placement table 5 includes a base 51 mounted on the frame 1 and a storage platform 52 mounted on the base 51. The storage platform 52 is located between the two thread rolling and knurling assemblies 4, and its storage surface extends along the rolling gap between the two thread rolling and knurling assemblies 4. The storage surface of the storage platform 52 is provided with a plurality of accommodating notches 53. Since the surface of shaft-like workpieces often has stepped assembly positions for assembly purposes, the accommodating notches 53 are used to accommodate the stepped assembly positions of the shaft-like workpiece when the shaft-like workpiece is placed on the storage platform 52.

[0038] It is worth noting that at least two storage plates 54 are fixed on the storage surface of the storage table 52. The storage plates 54 are located between the knurling wheel 43 and the thread rolling wheel 44. Both ends of the storage plates 54 have inclined baffles 55 that are tilted toward the thread rolling and knurling assembly 4.

[0039] In this embodiment, there are two storage plates 54. When a thread rolling wheel 44 is installed on both sides of the knurling wheel 43 of the rotating shaft 42, the two storage plates 54 are respectively located between the knurling wheel 43 and the thread rolling wheel 44, which can effectively improve the placement stability of the shaft workpiece on the storage platform 52.

[0040] Reference Figure 5 As shown, the frame 1 is provided with an annular air pipe 8 surrounding the storage table 52, and the annular air pipe 8 is fixed on the storage table 52. A plurality of nozzles 9 are provided on the annular air pipe 8. The nozzles 9 are respectively located below the knurling wheel 43 and the thread rolling wheel 44. The nozzles 9 are set toward the wheel surface of the knurling wheel 43 and the thread rolling wheel 44. The frame 1 is provided with a blowing assembly 10 connected to the annular air pipe 8.

[0041] Since the rolling wheel 44 and the knurling wheel 43 on the movable bracket 3 will approach the rolling wheel 44 and the knurling wheel 43 of the fixed bracket 2 only when processing shaft workpieces, when the rolling wheels 44 and the knurling wheels 43 of the two rolling and knurling assemblies 4 collide with each other, the nozzle 9 of the annular air pipe 8 is located below the knurling wheel 43 and the rolling wheel 44 of the movable bracket 3.

[0042] By configuring the air blowing assembly 10, air can be pressurized and ejected from the nozzle 9 of the annular air pipe 8. The airflow can cool the processing area between the thread rolling wheel 44 and the knurling wheel 43 and the shaft workpiece, thereby preventing the shaft from generating high temperatures during thread rolling and knurling. Furthermore, after the thread rolling wheel 44 and the knurling wheel 43 have cold-rolled the shaft workpiece, the airflow can blow away metal debris on the outer surfaces of the thread rolling wheel 44 and the knurling wheel 43, thereby ensuring the stability of the subsequent thread rolling wheel 44 and the knurling wheel 43 processing of the shaft workpiece, thereby ensuring the processing quality of the shaft workpiece.

[0043] Reference Figure 5 As shown, the blowing assembly 10 includes an air cylinder 101 fixed to the frame 1. The air cylinder 101 houses a piston 102. The air cylinder 101 is provided with an air inlet and an air outlet. The air inlet is mounted with an air inlet valve, and the air outlet is mounted with an air outlet valve. Both the air inlet and air outlet valves are one-way valves. The air outlet valve is connected to the annular air pipe 8 via a conduit 103. The thread rolling and knurling assembly 4 is provided with a drive member 11 for driving the piston 102 to reciprocate.

[0044] The driving component 11 includes a cam 111 and a linkage rod 112. The cam 111 is installed on the rotating shaft 42. The outer rim of the cam 111 is provided with a linkage groove, and a linkage slider is provided in the linkage groove. One end of the linkage rod 112 is hinged to the piston 102, and the other end of the linkage rod 112 is hinged to the linkage slider.

[0045] Therefore, the rotating shaft 42 can drive the cam 111 to rotate during the rotation process, and then the cam 111 and the connecting rod 112 can provide the driving force for the piston 102 to move back and forth in the air cylinder 101, and then the piston 102 can pressurize the gas in the air cylinder 101 and transport it into the annular air pipe 8, and then the air flow is sprayed from the nozzle 9 in the annular air pipe 8 to the thread rolling wheel 44 and the knurling wheel 43, thereby realizing the cooling of the thread rolling wheel 44 and the knurling wheel 43 and the cleaning of debris.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A thread rolling and knurling integrated processing device, comprising a frame (1), a fixed bracket (2) arranged on the frame (1), and a movable bracket (3) movably arranged on the frame (1), characterized in that: The fixed bracket (2) and the movable bracket (3) are both equipped with a thread rolling and knurling assembly (4), the two thread rolling and knurling assemblies (4) are arranged opposite to each other, and the frame (1) is provided with a workpiece placement platform (5) between the two thread rolling and knurling assemblies (4); The thread rolling and knurling assembly (4) comprises a rotating shaft (42) and a knurling wheel (43) mounted on the rotating shaft (42), wherein the rotating shaft (42) is provided with at least one thread rolling wheel (44) on one side or both sides of the knurling wheel (43); the rotating shaft (42) is provided with a thread rolling wheel (44) on both sides of the knurling wheel (43), and the thread rolling wheels (44) on both sides are spaced apart from the knurling wheel (43); A mounting ring (45) is provided in the middle of the knurling wheel (43) and the thread rolling wheel (44). The mounting ring (45) is sleeve-mounted on the rotating shaft (42). The mounting ring (45) is fixed to the rotating shaft (42) by bolts.

2. The thread rolling and knurling integrated processing equipment according to claim 1, characterized in that: The thread rolling and knurling assembly (4) further comprises two fixed blocks (41) arranged at intervals, the two ends of the rotating shaft (42) are respectively rotatably mounted on the two fixed blocks (41), the fixed bracket (2) and the movable bracket (3) are respectively provided with adjustment slots (6), and the fixed blocks (41) are fixed in the adjustment slots (6) by means of a bolt and nut assembly.

3. The thread rolling and knurling integrated processing equipment according to claim 1, characterized in that: The workpiece placement table (5) comprises a base (51) arranged on the frame (1) and a storage table (52) arranged on the base (51); the storage table (52) is located between two thread rolling and knurling assemblies (4); and a storage surface of the storage table (52) extends along the rolling gap between the two thread rolling and knurling assemblies (4).

4. The thread rolling and knurling integrated processing equipment according to claim 3, characterized in that: A plurality of accommodating notches (53) are provided on the storage surface of the storage platform (52).

5. The thread rolling and knurling integrated processing equipment according to claim 3, characterized in that: At least two storage plates (54) are fixed on the storage surface of the storage platform (52), and the storage plates (54) are located between the knurling wheel (43) and the thread rolling wheel (44). Both ends of the storage plates (54) have inclined blocking plates (55) arranged obliquely toward the thread rolling and knurling assembly (4).

6. The thread rolling and knurling integrated processing equipment according to claim 3, characterized in that: The frame (1) is provided with an annular air pipe (8) surrounding the storage table (52), and the annular air pipe (8) is provided with a plurality of nozzles (9), the nozzles (9) are respectively located below the knurling wheel (43) and the thread rolling wheel (44), and the nozzles (9) are arranged toward the wheel surfaces of the knurling wheel (43) and the thread rolling wheel (44), and the frame (1) is provided with an air blowing component (10) connected to the annular air pipe (8).

7. The thread rolling and knurling integrated processing equipment according to claim 6, characterized in that: The blowing assembly (10) comprises an air cylinder (101) fixed on a frame (1), a piston (102) being arranged in the air cylinder (101), an air inlet and an air outlet being arranged on the air cylinder (101), an air inlet valve being installed on the air inlet, an air outlet valve being installed on the air outlet, the air outlet valve being connected to the annular air pipe (8) via a conduit (103), and a driving member (11) for driving the piston (102) to reciprocate being arranged on the thread rolling and knurling assembly (4).

8. The thread rolling and knurling integrated processing equipment according to claim 7, characterized in that: The driving member (11) comprises a cam (111) and a linkage rod (112); the cam (111) is mounted on the rotating shaft (42); an outer rim of the cam (111) is provided with a linkage groove; a linkage slider is provided in the linkage groove; one end of the linkage rod (112) is hinged to the piston (102); and the other end of the linkage rod (112) is hinged to the linkage slider.

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