A kind of automatic punching chamfering tapping device for treadmill drum shaft core

Abstract

This utility model relates to the technical field of mechanical parts processing equipment, and in particular to an automatic drilling, chamfering, and tapping device for treadmill roller shafts. It includes a roller shaft feeding assembly, a processing table, a stepping feeding assembly, a shaft assembly assembly, a mounting base, and sequentially arranged drilling, upper hole chamfering, lower hole chamfering, and tapping units. The feeding assembly transports the shaft to the shaft assembly assembly, which secures the shaft via a mounting base with a V-groove and a clamping structure with rubber gaskets. The stepping feeding assembly moves the shaft between the processing units, each unit performing drilling, upper and lower hole chamfering, and tapping operations. Waste chips are discharged from the processing table via a discharge structure. This device automates the entire shaft processing process, improving processing efficiency and accuracy, reducing labor intensity, and is suitable for large-scale production.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts processing equipment, and in particular to an automatic drilling, chamfering and tapping device for treadmill roller shaft core. Background Technology

[0002] The treadmill roller shaft is a crucial component of a treadmill, and its processing quality directly affects the treadmill's operational stability and lifespan. The processing of the roller shaft typically involves multiple steps, such as drilling, chamfering, and tapping. Traditional processing methods often rely on manual operation or multiple machines working in stages, resulting in low efficiency, high labor intensity, and difficulty in guaranteeing processing accuracy, thus failing to meet the demands of large-scale production. Utility Model Content

[0003] To address the aforementioned technical problem of low efficiency in manual processing of treadmills, this utility model provides an automatic drilling, chamfering, and tapping device for treadmill roller shaft cores. The specific technical solution is as follows: An automatic drilling, chamfering, and tapping device for treadmill roller shafts includes a roller shaft feeding assembly and a processing table. The roller shaft feeding assembly is located on the side of the processing table. The device also includes a stepping feed assembly, a shaft assembly assembly, mounting seats, a drilling unit, an upper hole chamfering unit, a lower hole chamfering unit, and a tapping unit, all mounted on the processing table. The shaft assembly assembly is located on the side of the roller shaft feeding assembly and docks with it. Roller shafts are fed one by one to the shaft assembly assembly via the roller shaft feeding assembly. Several mounting seats are provided. The components are arranged at equal intervals on the upper end of the shaft core assembly. The stepping feeding component is set on the shaft core assembly. Two drilling units, two upper hole chamfering units, two lower hole chamfering units, and two tapping units are set on each side of the shaft core assembly. The drilling unit is located on the side closer to the roller shaft core feeding component. The drilling unit, the upper hole chamfering unit, the lower hole chamfering unit, and the tapping unit correspond to the mounting base on the shaft core assembly.

[0004] Preferably, the shaft core assembly includes two parallel mounting plates, a clamping plate, and a clamping cylinder. Several mounting seats are equally spaced on the upper ends of the mounting plates on both sides. The clamping cylinder is located above the mounting seats, with its output direction vertically downward. The clamping plate is fixedly installed at the output end of the clamping cylinder. During processing, the roller shaft core is located between the clamping plate and the mounting seats. The clamping cylinder presses down to push the clamping plate down onto the mounting seats to fix the roller shaft core.

[0005] Preferably, the upper end face of the mounting base is provided with a V-shaped limiting groove, and the roller shaft core is embedded in the V-shaped limiting groove.

[0006] Preferably, a pressure pad is provided on the lower end face of the pressure plate.

[0007] Preferably, the stepping feeding assembly is disposed between two mounting plates on the shaft core assembly. The stepping feeding assembly includes a conveying base, a conveying slide plate, a conveying drive cylinder, a conveying lifting cylinder, and a conveying frame. The conveying slide plate is slidably disposed on the upper end of the conveying base and is connected to the conveying drive cylinder for transmission. The conveying drive cylinder pushes the conveying slide plate to move horizontally on the conveying base. Several conveying lifting cylinders are provided, and the several conveying lifting cylinders are equally spaced on the upper end of the conveying slide plate. Each conveying lifting cylinder has a conveying frame at its output end.

[0008] Preferably, the drilling unit includes a drilling support frame, a telescopic drilling motor, and a drilling bit. The telescopic drilling motor is fixedly mounted on the drilling support frame, and the drilling bit is fixedly mounted on the output end of the telescopic drilling motor, with the drilling bit positioned above the mounting base.

[0009] Preferably, the upper hole chamfering unit includes an upper chamfering support frame, an upper chamfering telescopic motor, and an upper chamfering head. The upper chamfering telescopic motor is fixedly installed on the upper chamfering support frame, and the upper chamfering head is fixedly installed on the output end of the upper chamfering telescopic motor. The upper chamfering head is located above the mounting base.

[0010] Preferably, the lower chamfering unit includes a lower chamfering support frame, a lower chamfering telescopic motor, and a lower chamfering head. The lower chamfering telescopic motor is fixedly installed on the lower chamfering support frame, and the lower chamfering head is fixedly installed on the output end of the lower chamfering telescopic motor. The lower chamfering head is located below the mounting base.

[0011] Preferably, the tapping unit includes a tapping bracket, a tapping telescopic motor, and a tapping head. The tapping telescopic motor is fixedly mounted on the tapping bracket, and the tapping head is fixedly mounted on the output end of the tapping telescopic motor, with the tapping head positioned above the mounting base.

[0012] Preferably, the processing table is provided with a discharge opening, and the lower end of the discharge opening is connected to a discharge channel for discharging waste generated during the processing.

[0013] Compared with the prior art, the present invention has the following beneficial effects: Firstly, this solution employs a stepping feed assembly to automatically transport the roller cores between processing units. Combined with the fixing function of the core assembly and the coordinated work of each processing unit, it achieves automated continuous processing of the roller cores for drilling, chamfering, and tapping. The roller core feeding assembly feeds the roller cores one by one to the initial mounting base of the core assembly. The stepping feed assembly then sequentially transports the roller cores to each processing station. At each station, a clamping cylinder first clamps the roller core, and the corresponding processing unit performs the appropriate processing operation. After processing is complete, the clamping cylinder releases, and the stepping feed assembly transports the roller core to the next station until all processing steps are completed. The entire process is highly automated, allows for continuous operation, and effectively improves production efficiency and processing quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the automatic drilling, chamfering, and tapping device in this application; Figure 2 This is a schematic diagram of the processing table in an automatic drilling, chamfering, and tapping device; Figure 3 This is a structural schematic diagram of the drilling unit, chamfering unit, lower hole chamfering unit and tapping unit in this application; Figure 4 This is a schematic diagram of the stepping feeding assembly in this application; Figure 5 This is a schematic diagram of the state structure of the roller shaft core in the drilling unit in this application; Figure 6 yes Figure 5 A magnified structural diagram of point A in the middle.

[0015] Reference numerals: 1. Roller shaft core feeding assembly; 2. Processing table; 21. Discharge channel; 3. Stepping feeding assembly; 31. Conveying base; 32. Conveying slide plate; 33. Conveying drive cylinder; 34. Conveying lifting cylinder; 35. Conveying frame; 4. Shaft core assembly assembly; 41. Assembly mounting plate; 42. Pressure plate; 421. Pressure pad; 43. Pressure cylinder; 5. Mounting seat; 6. Drilling unit; 61. Drilling support frame; 62. Telescopic drilling motor; 63. Drill bit; 7. Upper hole chamfering unit; 71. Upper chamfering support frame; 72. Upper chamfering telescopic motor; 73. Upper chamfering head; 8. Lower hole chamfering unit; 81. Lower chamfering support frame; 82. Lower chamfering telescopic motor; 83. Lower chamfering head; 9. Tapping unit; 91. Tapping telescopic motor; 93. Tapping head. Detailed Implementation

[0016] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0017] like Figures 1 to 6 As shown, the automatic drilling, chamfering and tapping device for treadmill roller shafts includes a roller shaft feeding assembly 1 and a processing table 2. The roller shaft feeding assembly 1 is located on the side of the processing table 2 and is used to transport the roller shafts to be processed one by one to the shaft assembly assembly 4.

[0018] The shaft core assembly 4 is located on the side of and docks with the roller shaft core feeding assembly 1. It includes two parallel mounting plates 41, a clamping plate 42, and a clamping cylinder 43. Several mounting seats 5 are evenly spaced on the mounting plates 41. The upper surface of each mounting seat 5 is machined with a V-shaped limiting groove. After the roller shaft core is conveyed from the roller shaft core feeding assembly 1 to the shaft core assembly 4, it is embedded in the V-shaped limiting groove for initial positioning. A clamping cylinder 43 is correspondingly located above each mounting seat 5. The output end of the clamping cylinder 43 faces downwards and is connected to the clamping plate 42. A rubber clamping pad 421 is attached to the lower surface of the clamping plate 42. When the roller shaft core needs processing, the clamping cylinder 43 actuates, pushing the clamping plate 42 downwards until the clamping pad 421 contacts the roller shaft core and presses it firmly onto the mounting seat 5, ensuring that the roller shaft core does not shift during processing.

[0019] The stepping feeding assembly 3 is installed between two mounting plates 41 and consists of a conveying base 31, a conveying slide plate 32, a conveying drive cylinder 33, a conveying lifting cylinder 34, and a conveying frame 35. The conveying base 31 is fixed on the processing table 2. The conveying slide plate 32 is slidably mounted on the conveying base 31 via a slide rail. The cylinder body of the conveying drive cylinder 33 is fixed on the conveying base 31, and the piston rod is connected to the conveying slide plate 32, which can drive the conveying slide plate 32 to move horizontally. Multiple conveying lifting cylinders 34 are installed at equal intervals along the length of the conveying slide plate 32. Each conveying lifting cylinder 34 has a conveying frame 35 installed at the end of its piston rod. The shape of the conveying frame 35 is adapted to the outer circle of the roller shaft core. When the roller shaft needs to be conveyed, the conveying lifting cylinder 34 is activated, driving the conveying frame 35 to move upward, lifting the roller shaft from the V-shaped limiting groove of the mounting base 5, separating it from the mounting base 5; then the conveying drive cylinder 33 is activated, pushing the conveying slide plate 32, together with the conveying frame 35 and the roller shaft, to move horizontally, conveying the roller shaft to directly above the next mounting base 5; then the conveying lifting cylinder 34 is reset, driving the roller shaft to move downward, so that it is re-embedded in the V-shaped limiting groove of the next mounting base 5; finally, the conveying drive cylinder 33 is reset, driving the conveying slide plate 32 back to the initial position, completing one conveying action. This cycle is repeated to realize the gradual movement of the roller shaft between various processing stations.

[0020] Along the conveying direction of the roller shaft core, a drilling unit 6, an upper hole chamfering unit 7, a lower hole chamfering unit 8, and a tapping unit 9 are sequentially arranged on the side end of the shaft core assembly 4. Each unit corresponds to a mounting seat 5 on the shaft core assembly 4, forming four processing stations.

[0021] The drilling unit 6 includes a drilling support frame 61, a telescopic drilling motor 62, and a drilling drill bit 63. The drilling support frame 61 is fixed on the processing table 2. The telescopic drilling motor 62 is vertically mounted on the upper part of the drilling support frame 61, with its output shaft facing downwards and connected to the drilling drill bit 63. The axis of the drilling drill bit 63 is aligned with the position to be drilled on the roller shaft core on the corresponding mounting base 5. When the roller shaft core is conveyed to the drilling station and pressed, the telescopic drilling motor 62 actuates, driving the drilling drill bit 63 to move downwards to drill the roller shaft core. After drilling is completed, the telescopic drilling motor 62 drives the drilling drill bit 63 to return to its original position.

[0022] The upper chamfering unit 7 includes an upper chamfering support frame 71, an upper chamfering telescopic motor 72, and an upper chamfering head 73. The upper chamfering support frame 71 is fixed on the processing table 2. The upper chamfering telescopic motor 72 is vertically mounted on the upper part of the upper chamfering support frame 71, with its output shaft facing downwards and connected to the upper chamfering head 73. The axis of the upper chamfering head 73 is aligned with the axis of the hole in the roller shaft core on the corresponding mounting base 5. When the roller shaft core is conveyed to the upper chamfering station and pressed, the upper chamfering telescopic motor 72 actuates, driving the upper chamfering head 73 to move downwards to chamfer the upper end face of the hole. After processing, the upper chamfering telescopic motor 72 drives the upper chamfering head 73 to return to its original position.

[0023] The lower chamfering unit 8 includes a lower chamfering support frame 81, a lower chamfering telescopic motor 82, and a lower chamfering head 83. The lower chamfering support frame 81 is fixed on the processing table 2. The lower chamfering telescopic motor 82 is vertically installed at the lower part of the lower chamfering support frame 81, with its output shaft facing upward and connected to the lower chamfering head 83. The axis of the lower chamfering head 83 is aligned with the axis of the hole in the roller shaft core on the corresponding mounting base 5. When the roller shaft core is transported to the lower chamfering station and pressed, the lower chamfering telescopic motor 82 actuates, driving the lower chamfering head 83 to move upward and chamfer the lower end face of the hole. After processing, the lower chamfering telescopic motor 82 drives the lower chamfering head 83 to return to its original position downward.

[0024] The tapping unit 9 includes a tapping bracket 91, a tapping telescopic motor 92, and a tapping head 93. The tapping bracket 91 is fixed on the processing table 2. The tapping telescopic motor 92 is vertically mounted on the upper part of the tapping bracket 91, with its output shaft facing downwards and connected to the tapping head 93. The axis of the tapping head 93 is aligned with the axis of the hole in the roller shaft core on the corresponding mounting base 5, and the tapping telescopic motor 92 can drive the tapping head 93 to rotate. When the roller shaft core is conveyed to the tapping station and pressed, the tapping telescopic motor 92 actuates, driving the tapping head 93 to rotate and move downwards, penetrating into the hole for tapping. After the tapping is completed, the tapping telescopic motor 92 drives the tapping head 93 to rotate in the opposite direction and return to its original position.

[0025] The table surface of the processing table 2 has discharge openings at the corresponding positions of each processing unit. The lower end of the discharge opening is connected to the discharge channel 21. Metal scrap generated during the processing can fall into the discharge channel 21 through the discharge opening and be collected and processed.

[0026] When the device is in operation, the roller shaft feeding assembly 1 transports the roller shafts one by one to the initial mounting base 5 of the shaft assembly assembly 4. The stepping feeding assembly 3 then sequentially transports the roller shafts to each processing station. At each station, the clamping cylinder 43 first clamps the roller shaft, and the corresponding processing unit performs the corresponding processing operation. After processing is completed, the clamping cylinder 43 is released, and the stepping feeding assembly 3 transports the roller shaft to the next station until all processing steps are completed. The entire process is highly automated, can operate continuously, and effectively improves production efficiency and processing quality.

[0027] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. An automatic drilling, chamfering, and tapping device for treadmill roller shaft cores, comprising a roller shaft core feeding assembly (1) and a processing table (2), wherein the roller shaft core feeding assembly (1) is disposed on the side end of the processing table (2), characterized in that, It also includes a stepping feed assembly (3), a shaft core assembly assembly (4), a mounting base (5), a drilling unit (6), an upper hole chamfering unit (7), a lower hole chamfering unit (8), and a tapping unit (9) set on the processing table (2). The shaft core assembly assembly (4) is set on the side end of the roller shaft core feeding assembly (1) and docks with it. The roller shaft cores are conveyed one by one to the shaft core assembly assembly (4) through the roller shaft core feeding assembly (1). Several mounting bases (5) are set and are arranged at equal intervals on the upper end of the shaft core assembly assembly (4). The stepping feed assembly (3) is set on the shaft core assembly assembly assembly (4). On the assembly assembly (4), two of the drilling unit (6), the upper hole chamfering unit (7), the lower hole chamfering unit (8), and the tapping unit (9) are respectively provided. The two drilling units (6), the upper hole chamfering unit (7), the lower hole chamfering unit (8), and the tapping unit (9) are arranged on both sides of the shaft core assembly assembly (4) in sequence. The drilling unit (6) is located on the side closer to the roller shaft core feeding assembly (1). The drilling unit (6), the upper hole chamfering unit (7), the lower hole chamfering unit (8), and the tapping unit (9) correspond to the mounting seat (5) on the shaft core assembly assembly (4) respectively.

2. The automatic drilling, chamfering, and tapping device for treadmill roller shaft cores according to claim 1, characterized in that, The shaft core assembly (4) includes two parallel mounting plates (41), a clamping plate (42), and a clamping cylinder (43). Several mounting seats (5) are equally spaced on the upper ends of the mounting plates (41) on both sides. The clamping cylinder (43) is located above the mounting seat (5). The output direction of the clamping cylinder (43) is vertically downward. The clamping plate (42) is fixedly installed at the output end of the clamping cylinder (43). During processing, the roller shaft core is located between the clamping plate (42) and the mounting seat (5). The clamping cylinder (43) presses down to push the clamping plate (42) down onto the mounting seat (5) to fix the roller shaft core.

3. The automatic drilling, chamfering, and tapping device for treadmill roller shaft cores according to claim 1, characterized in that, The upper surface of the mounting base (5) is provided with a V-shaped limiting groove, and the roller shaft is embedded in the V-shaped limiting groove.

4. The automatic drilling, chamfering, and tapping device for treadmill roller shaft core according to claim 2, characterized in that, The lower end face of the clamping plate (42) is provided with a clamping pad (421).

5. The automatic drilling, chamfering, and tapping device for treadmill roller shaft cores according to claim 1, characterized in that, The stepping feeding assembly (3) is set between two mounting plates (41) on the shaft core assembly assembly (4). The stepping feeding assembly (3) includes a conveying base (31), a conveying slide plate (32), a conveying drive cylinder (33), a conveying lifting cylinder (34), and a conveying frame (35). The conveying slide plate (32) is slidably set on the upper end of the conveying base (31) and is connected to the conveying drive cylinder (33) for transmission. The conveying drive cylinder (33) pushes the conveying slide plate (32) to move horizontally on the conveying base (31). Several conveying lifting cylinders (34) are set. Several conveying lifting cylinders (34) are equally spaced on the upper end of the conveying slide plate (32). Each conveying lifting cylinder (34) has a conveying frame (35) at its output end.

6. The automatic drilling, chamfering, and tapping device for treadmill roller shaft core according to claim 1, characterized in that, The drilling unit (6) includes a drilling support frame (61), a telescopic drilling motor (62), and a drilling drill bit (63). The telescopic drilling motor (62) is fixedly installed on the drilling support frame (61), and the drilling drill bit (63) is fixedly installed on the output end of the telescopic drilling motor (62). The drilling drill bit (63) is located above the mounting base (5).

7. The automatic drilling, chamfering, and tapping device for treadmill roller shaft cores according to claim 1, characterized in that, The upper chamfering unit (7) includes an upper chamfering support frame (71), an upper chamfering telescopic motor (72), and an upper chamfering head (73). The upper chamfering telescopic motor (72) is fixedly installed on the upper chamfering support frame (71), and the upper chamfering head (73) is fixedly installed on the output end of the upper chamfering telescopic motor (72). The upper chamfering head (73) is located above the mounting base (5).

8. The automatic drilling, chamfering, and tapping device for treadmill roller shaft core according to claim 1, characterized in that, The lower chamfering unit (8) includes a lower chamfering support frame (81), a lower chamfering telescopic motor (82), and a lower chamfering head (83). The lower chamfering telescopic motor (82) is fixedly installed on the lower chamfering support frame (81), and the lower chamfering head (83) is fixedly installed on the output end of the lower chamfering telescopic motor (82). The lower chamfering head (83) is located below the mounting base (5).

9. The automatic drilling, chamfering, and tapping device for treadmill roller shaft core according to claim 1, characterized in that, The tapping unit (9) includes a tapping bracket (91), a tapping telescopic motor (92), and a tapping head (93). The tapping telescopic motor (92) is fixedly mounted on the tapping bracket (91), and the tapping head (93) is fixedly mounted on the output end of the tapping telescopic motor (92). The tapping head (93) is located above the mounting base (5).

10. The automatic drilling, chamfering, and tapping device for treadmill roller shaft core according to claim 1, characterized in that, The processing table (2) is provided with a discharge opening, and the lower end of the discharge opening is connected to a discharge channel (21) for discharging waste generated during the processing.

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