Machining tool for producing and manufacturing bicycle pedal assembly

Abstract

The invention provides a machining tool for producing and manufacturing a bicycle pedal assembly, and relates to the technical field of metal cutting machine tools, the machining tool comprises a platen, a U-shaped protective cover is fixedly mounted at the top end of the platen, and the U-shaped protective cover is formed by butt joint of a flat rectangular cover on the lower side and a flat semicircular cover on the upper side; the tail end parts of two transversely-arranged sliding shafts of the I-shaped sliding frame are in penetrating sliding fit with transversely-arranged side rods of the T-shaped sliding pieces on the corresponding sides; two clamping plates are symmetrically welded to the head ends of the two I-shaped sliding frames. In the initial state, the distance between the transverse side rod of the T-shaped sliding piece and the longitudinal connecting rod is equal to the distance between the end, away from the T-shaped sliding piece, of the rectangular cover and the clamping side of the clamping plate. The two rectangular covers and the clamping plate can share one bidirectional air cylinder for driving, so that a driving unit for additionally configuring a sliding switch for the two rectangular covers and an automatic control system for controlling the rectangular covers to be automatically switched on and off before and after cutting operation can be omitted, and the power consumption and the manufacturing cost of a machining tool can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of metal cutting machine tools, in particular to a processing tool for producing and manufacturing a bicycle pedal assembly. Background Art

[0002] The bicycle pedal assembly consists of a pedal load-bearing component and a central axis rotating assembly, wherein the central axis consists of an axle body, a component for rotating and disassembling the central axis in cooperation with a wrench, and an assembly thread opened on the component. In some low-cost bicycle pedal assemblies, the central axis is mostly not processed by the high-cost one-piece turning method, but mostly by the low-cost welding method. In the welding method, it is necessary to first use a cutting tool to cut the axial metal raw material of the axle body into sections.

[0003] In order to prevent high-temperature metal debris formed during the cutting process from flying around and injuring people, existing cutting tooling is often equipped with protective covers to enclose and shield the high-temperature metal debris. In order to improve the protective effect of these protective covers, most of the protective covers are set in a relatively closed form. In order to facilitate the calibration and alignment of the metal raw material to be processed with the cutting blade and to perform precise cutting of the metal raw material, observation ports are often reserved on the protective covers. In order to prevent high-temperature metal debris from bursting out of these observation ports during the cutting process and weakening the closed protective effect of the protective covers, cover components are often arranged on these observation ports. However, the sliding switch action of the cover component requires additional configuration of a drive unit and an automated control system for drive control implementation, and the original drive unit and automated control system on the processing tooling cannot be used for drive control implementation, which is not conducive to reducing the cost and power consumption of the processing tooling. Summary of the invention

[0004] In view of this, the present invention provides a processing tool for manufacturing a bicycle pedal assembly to solve the problems of reducing the cost of the processing tool and high power consumption.

[0005] The technical solution proposed by the present invention is: a processing tool for manufacturing a bicycle pedal assembly, specifically comprising a platform, a U-shaped protective cover is fixedly installed on the top of the platform, and the U-shaped protective cover is composed of a flat rectangular cover on the lower side and a flat semicircular cover on the upper side; Both long side plates of the flat rectangular cover are provided with U-shaped observation slots; two T-shaped sliding members are symmetrically and slidably mounted on the table board. One end of the horizontal side rods of the two T-shaped sliding members is welded with a rectangular cover. The two rectangular covers are slidably attached to the corresponding long side plates of the flat rectangular cover, and are used to close most of the open space of the U-shaped observation slots on the long side plates during cutting processing; two I-shaped sliding frames are symmetrically and slidably mounted at the top end of the table board. The tail ends of the two horizontal sliding shafts of the I-shaped sliding frames are slidably and penetratingly engaged with the horizontal side rods of the corresponding side T-shaped sliding members. The tail ends of the two horizontal sliding shafts are welded with force-receiving discs. The horizontal side rods of the T-shaped sliding members are located between the two force-receiving discs and the vertical connecting rods inside the I-shaped sliding frames; two clamping plates are symmetrically welded at the front end parts of the two I-shaped sliding frames; in the initial state, the distance between the horizontal side rod of the T-shaped sliding member and the vertical connecting rod is equal to the distance between the end of the rectangular cover far from the T-shaped sliding member and the clamping side of the clamping plate.

[0006] Furthermore, a double-acting cylinder is fixedly suspended at the middle position of the bottom of the table board. The front end parts of the two symmetrically arranged and oppositely telescoping and sliding piston rods on the two double-acting cylinders are respectively fixedly connected to the bottom end parts of the T-shaped sliding members.

[0007] Furthermore, two short sliding slots are symmetrically and penetratingly opened on the table board near the U-shaped protective cover. The vertical side rods of the two T-shaped sliding members are correspondingly slidably and penetratingly engaged with the two short sliding slots; Four positioning ear blocks are symmetrically welded on the part of the top end of the table board between the two short sliding slots. The four horizontal sliding shafts of the two I-shaped sliding frames are correspondingly slidably and penetratingly engaged with the four positioning ear blocks.

[0008] Furthermore, a transverse cutting slot is penetratingly opened at the middle position of the table board. The flat rectangular cover is welded on the part of the top end of the table board around the transverse cutting slot. The vertical sliding slot and the flat semi-circular cover are locked and butted by bolts; The U-shaped observation slot is opened at the middle position of the lower half of the long side wall of the flat rectangular cover, and the bottom opening thereof abuts against the top end of the table board.

[0009] Furthermore, two vertical guide shafts are symmetrically welded at the position of the top end of the table board near the flat rectangular cover. Two transverse beam rods are welded at intervals up and down between the upper half sections of the two vertical guide shafts. A cutting motor is slidably arranged between the two vertical guide shafts. A circular cutting blade is fixedly sleeved at the front end of the rotating shaft of the cutting motor. The circular cutting blade is located in the U-shaped protective cover.

[0010] Furthermore, a vertical sliding slot is penetratingly opened at the middle position of the upper half of a long side wall of the flat rectangular cover. The bottom opening of the vertical sliding slot is communicated with the corresponding U-shaped observation slot; A U-shaped groove is penetrated and opened at the middle position of one semi-circular side wall of the flat semi-circular cover. The bottom opening of the U-shaped groove is communicated with the top opening of the vertical sliding groove. The U-shaped groove and the vertical sliding groove are jointly connected to form a complete U-shaped sliding groove. The cutting motor rotating shaft is slidably matched with the U-shaped sliding groove in a penetrating manner.

[0011] Furthermore, the top end of the cutting motor housing is fixedly connected with a U-shaped driving frame. The top U-shaped part of the U-shaped driving frame is slidably matched with the flat semi-circular cover. The bottom end of the short vertical side shaft of the U-shaped driving frame is welded with a rectangular handle frame. The long vertical side shaft of the U-shaped driving frame is slidably matched with two horizontally arranged beam rods in a penetrating manner.

[0012] Furthermore, two T-shaped sliding parts are symmetrically fixedly connected to the cutting motor housing. Limiting rings are welded and sleeved on the middle upper positions of the two vertical guide shafts. The first ends of the two T-shaped sliding parts are slidably matched with the parts of the two vertical guide shafts below the limiting rings correspondingly; Springs are sleeved on the two vertical guide shafts. The springs are compressed and clamped between the first ends of the T-shaped sliding parts and the table board.

[0013] Furthermore, an electric control box is further included. An automatic controller and a contactor for controlling the start and stop of the cutting motor are arranged inside the electric control box; A vertical mounting plate is welded at the position of the table board top end close to one vertical guide shaft. An optoelectronic proximity switch is fixedly installed at the top part of the vertical mounting plate. The optoelectronic proximity switch is electrically connected with the automatic controller; The double-acting cylinder is connected with an external compressed gas supply device through a high-pressure air pipe. The telescopic control unit of the double-acting cylinder is electrically connected with the automatic controller.

[0014] A processing tool for manufacturing a bicycle pedal assembly provided by the present invention has the following beneficial effects: First, the U-shaped protective cover is relatively enclosed, and it can fence and shield the high-temperature metal chips generated during the cutting process, avoiding the high-temperature metal chips lacking necessary shielding and scattering to scald and injure the staff, and implementing safety protection for the staff.

[0015] Second, the U-shaped observation groove has a certain length and a good observation field of view. The U-shaped observation groove can facilitate the observation of the relative position relationship between the circular cutting blade and the metal raw material shaft, facilitate the alignment of the corresponding cutting position on the metal raw material shaft with the circular cutting blade, and perform precise segmented cutting on the metal raw material shaft. When the two rectangular covers slide towards each other, their first ends abut against the metal raw material shaft, and most of the open space of the U-shaped observation groove on the front side of the processing tooling can be closed. This can prevent the U-shaped observation groove on this front side from lacking shielding and being directly exposed during the cutting process, causing high-temperature metal chips to splash out through the directly exposed U-shaped observation groove, helping to ensure the enclosure effect of the U-shaped protective cover on high-temperature metal chips and ensuring its safety protection performance for the staff.

[0016] Third, through the power transmission of the T-shaped sliding member, the force-bearing plate, and the longitudinally arranged connecting rod, the two rectangular covers and the clamping plates can share one two-way cylinder for driving. This can save the driving unit that needs to additionally configure sliding switches for the two rectangular covers and the automated control system for automatically switching them on and off before and after the cutting operation, helping to reduce the power consumption and cost of the processing tooling.

[0017] Fourth, when the transverse side rods of the two T-shaped sliding members abut against the two longitudinally arranged connecting rods and start to push to drive the two I-shaped sliding frames and the two clamping plates to slide synchronously, the ends of the two rectangular covers far from the T-shaped sliding members (i.e., the first ends of the rectangular covers) and the clamping sides of the two clamping plates are on the same vertical reference plane and are flush. This can ensure that the first ends of the two rectangular covers and the clamping sides of the two clamping plates can be simultaneously and synchronously pressed against the metal raw material shaft, preventing the first ends of the two rectangular covers from being pre-pressed against the metal raw material shaft and blocking the continuous sliding of the two clamping plates towards each other, resulting in the two clamping plates not being pressed against the metal raw material shaft to effectively clamp and position the metal raw material shaft, affecting the normal realization of the design that the two clamping plates and the two rectangular covers use the same two-way cylinder to drive to perform their corresponding functions.

[0018] Fifth, the design that the T-shaped sliding member drives the rectangular cover to slide before the clamping plate can make the sliding stroke of the two rectangular covers greater than the sliding stroke of the two clamping plates when the two clamping plates and the two rectangular covers use the same two-way cylinder to drive to perform the clamping and closing functions respectively, so that the sliding stroke of the two rectangular covers is sufficient to cover the large shielding distance formed between them and the metal raw material shaft, ensuring that the two rectangular covers can complete the normal and effective shielding of the U-shaped observation groove with a certain length, helping to ensure the normal realization of the design that the two clamping plates and the two rectangular covers use the same two-way cylinder to drive to perform their corresponding functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly introduced below.

[0020] The accompanying drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0021] In the accompanying drawings: Figure 1 A schematic diagram of the overall front side view of the present invention is shown; Figure 2 A schematic diagram of the overall back side view of the present invention is shown; Figure 3 A schematic diagram of the sliding closing state of two rectangular covers in the present invention is shown; Figure 4 A state diagram of the T-shaped sliding part sliding down to touch the photoelectric proximity switch in the present invention is shown; Figure 5 A schematic diagram of the overall bottom side view of the present invention is shown; Figure 6 A schematic diagram of the disassembly state of the flat semi-circular cover and the T-shaped sliding part in the present invention is shown; Figure 7 A schematic diagram of the structure of the U-shaped protective cover in the present invention is shown; Figure 8 A schematic diagram of the installation position structure of the cutting motor in the present invention is shown; Figure 9 A schematic diagram of the structure of the T-shaped sliding part and the I-shaped sliding frame in the present invention is shown; Figure 10 A schematic diagram of the electrical control flow chart of the present invention is shown.

[0022] List of reference numerals: 1. Table board; 101. π-shaped frame; 102. Vertical guide shaft; 1021. Horizontal beam rod; 1022. Limit ring; 103. Positioning ear block; 104. Vertical mounting plate; 105. Horizontal cutting groove; 106. Short sliding groove; 2. U-shaped protective cover; 201. Flat rectangular cover; 2011. U-shaped observation groove; 2012. Vertical sliding groove; 202. Flat semi-circular cover; 2021. U-shaped groove; 3. U-shaped drive frame; 301. Rectangular handle frame; 4. T-shaped sliding part; 401. Rectangular cover; 402. I-shaped sliding frame; 4021. Clamping plate; 4022. Longitudinal connecting rod; 4023. Force receiving disc; 5. Double-acting cylinder; 501. Piston rod; 6. Cutting motor; 601. T-shaped sliding part; 7. Electric control box; 8. Metal raw material shaft; 9. Circular cutting blade; 10. Photoelectric proximity switch. Detailed implementation mode

[0023] To make the objectives, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0024] The following is an implementation provided by the present invention. Please refer to Figures 1 to 10 : This embodiment provides a processing tool for manufacturing a bicycle pedal assembly, including a table board 1. A U-shaped protective cover 2 is fixedly installed at the top of the table board 1. The U-shaped protective cover 2 is composed of a flat rectangular cover 201 at the lower side and a flat semi-circular cover 202 at the upper side butt-jointed. U-shaped observation grooves 2011 are opened on the two long side plates of the flat rectangular cover 201. Two T-shaped sliding members 4 are symmetrically and slidably installed on the table board 1. One end of the horizontal side rod of each of the two T-shaped sliding members 4 is welded with a rectangular cover 401. The two rectangular covers 401 are slidably attached to the corresponding long side plates on the flat rectangular cover 201. Two I-shaped sliding frames 402 are symmetrically and slidably installed at the top of the table board 1. The tail ends of the two horizontal sliding shafts of the I-shaped sliding frames 402 are slidably penetrated and cooperated with the horizontal side rods of the corresponding side T-shaped sliding members 4. The tail ends of the two horizontal sliding shafts are welded with force-receiving discs 4023. The horizontal side rods of the T-shaped sliding members 4 are located between the two force-receiving discs 4023 and the vertical connecting rods 4022 inside the I-shaped sliding frames 402. Two clamping plates 4021 are symmetrically welded to the front end parts of the two I-shaped sliding frames 402. In the initial state, the distance between the horizontal side rod of the T-shaped sliding member 4 and the vertical connecting rod 4022 is equal to the distance between the end of the rectangular cover 401 far from the T-shaped sliding member 4 and the clamping side of the clamping plate 4021 (refer to Figure 1 and Figure 6 ).

[0025] Preferably, a two-way cylinder 5 is fixedly suspended at the middle position of the bottom of the table board 1. The front end parts of the two piston rods 501 symmetrically arranged and telescopically slid in opposite directions on the two two-way cylinders 5 are respectively fixedly connected to the bottom end parts of the T-shaped sliding members 4.

[0026] Preferably, two short sliding grooves 106 are symmetrically and penetrated through the table board 1 near the U-shaped protective cover 2. The vertical side rods of the two T-shaped sliding members 4 are slidably penetrated and cooperated with the two short sliding grooves 106 respectively. Four positioning ear blocks 103 are symmetrically welded on the part of the top of the table board 1 between the two short sliding grooves 106. The four horizontal sliding shafts of the two I-shaped sliding frames 402 are slidably penetrated and cooperated with the four positioning ear blocks 103 respectively.

[0027] Preferably, a transverse cutting groove 105 is formed through the middle position of the platen 1, and the flat rectangular cover 201 is welded to the part of the top end of the platen 1 around the transverse cutting groove 105. The vertical sliding groove 2012 and the flat semi-circular cover 202 are locked and butt-jointed by bolts. The U-shaped observation groove 2011 is formed in the middle position of the lower half of the long side wall of the flat rectangular cover 201, and the bottom opening thereof abuts against the top end of the platen 1.

[0028] Preferably, two vertical guide shafts 102 are symmetrically welded to the top end of the platen 1 near the flat rectangular cover 201. Two cross beam rods 1021 are welded at intervals up and down between the upper half sections of the two vertical guide shafts 102. A cutting motor 6 is slidably arranged between the two vertical guide shafts 102. The first end of the rotating shaft of the cutting motor 6 is fixedly sleeved with a circular cutting blade 9, and the circular cutting blade 9 is located in the U-shaped protective cover 2.

[0029] Preferably, a vertical sliding groove 2012 is formed through the middle position of the upper half of a long side wall of the flat rectangular cover 201. The bottom opening of the vertical sliding groove 2012 communicates with the U-shaped observation groove 2011 on the corresponding side. A U-shaped groove 2021 is formed through the middle position of a semi-circular side wall of the flat semi-circular cover 202. The bottom opening of the U-shaped groove 2021 communicates with the top opening of the vertical sliding groove 2012. The U-shaped groove 2021 and the vertical sliding groove 2012 together form a complete U-shaped sliding groove, and the rotating shaft of the cutting motor 6 is slidably fitted through the U-shaped sliding groove.

[0030] Preferably, a U-shaped driving frame 3 is fixedly connected to the top end of the housing of the cutting motor 6. The top U-shaped part of the U-shaped driving frame 3 is slidably fitted with the flat semi-circular cover 202. The bottom end of the short vertical side shaft of the U-shaped driving frame 3 is welded with a rectangular handle frame 301. The long vertical side shaft of the U-shaped driving frame 3 is slidably fitted through the two cross beam rods 1021.

[0031] Preferably, two T-shaped sliding parts 601 are symmetrically fixedly connected to the housing of the cutting motor 6. Limiting rings 1022 are welded and sleeved on the middle upper parts of the two vertical guide shafts 102. The first end parts of the two T-shaped sliding parts 601 are slidably fitted with the parts of the two vertical guide shafts 102 below the limiting rings 1022 respectively. Springs are sleeved on the two vertical guide shafts 102, and the springs are compressed and clamped between the first end parts of the T-shaped sliding parts 601 and the platen 1.

[0032] Preferably, it further includes an electric control box 7, where an automatic controller and a contactor for controlling the start and stop of the cutting motor 6 are arranged inside the electric control box 7; a vertical mounting plate 104 is welded at the top of the table board 1 near a vertical guide shaft 102, and a photoelectric proximity switch 10 is fixedly installed at the top part of the vertical mounting plate 104. The photoelectric proximity switch 10 is electrically connected to the automatic controller; the two-way cylinder 5 is connected to an external compressed gas supply device through a high-pressure air pipe, and the telescopic control unit of the two-way cylinder 5 is electrically connected to the automatic controller.

[0033] Preferably, two π-shaped frames 101 are symmetrically welded to the bottom sides of the two long sides of the table board 1. The two π-shaped frames 101 and the table board 1 together form an operating platform; the electric control box 7 is fixedly installed on the top part of a vertical support plate of one of the π-shaped frames 101.

[0034] It should be noted that: the model selection of the automatic controller and the photoelectric proximity switch 10, the connection wiring method between them, the connection wiring method between the automatic controller and the telescopic control unit, and the control principle of the automatic controller for the telescopic control unit belong to the prior art for those engaged in equipment electrical automation transformation, upgrading, testing, and maintenance in this field. Therefore, it will not be elaborated here.

[0035] The following will elaborate and explain in detail the specific details, implementation steps, functions and interrelationships of each feature, and the role it plays in the implementation of this technical solution: The metal raw material shaft 8 is the raw material for making the middle shaft of the bicycle pedal assembly. When it is cut, it is clamped and positioned between two clamping plates 4021; the cutting motor 6 can drive the circular cutting blade 9 to rotate at a high speed. The cutting motor 6 can drive the circular cutting blade 9 that rotates at a high speed to slide down and contact the metal raw material shaft 8 to cut the metal raw material shaft 8. The hand can drive the cutting motor 6 and the circular cutting blade 9 to slide down through the U-shaped drive frame 3 and the rectangular handle frame 301. When the cutting motor 6 is driven to slide down, it compresses the spring on the vertical guide shaft 102. When the hand releases the rectangular handle frame 301 and removes the downward pushing force acting on the U-shaped drive frame 3 and the cutting motor 6, the compressed spring can automatically push back to drive the cutting motor 6 and the circular cutting blade 9 to slide up and reset, so as to vacate the space for the metal raw material shaft 8 to pass through the two U-shaped observation slots 2011, and the metal raw material shaft 8 can slide to adjust its relative position relationship with the circular cutting blade 9 to perform segmented cutting on the metal raw material shaft 8.

[0036] The U-shaped protective cover 2 is relatively enclosed, which can fence and shield the high-temperature metal chips generated during the cutting process, preventing the high-temperature metal chips from lacking necessary shielding and flying around to scald or injure the staff, thus providing safety protection for the staff; the U-shaped observation groove 2011 has a certain length and a good observation field of view. The U-shaped observation groove 2011 can conveniently observe the relative position relationship between the circular cutting blade 9 and the metal raw material shaft 8, facilitating the alignment of the corresponding cutting position on the metal raw material shaft 8 with the circular cutting blade 9, and implementing precise segmented cutting on the metal raw material shaft 8; during the cutting operation, the staff stands on the front side of the processing tooling, that is, the side where the two I-shaped sliding frames 402 are located. When the two rectangular covers 401 slide towards each other, their front ends abut against the metal raw material shaft 8, and can enclose most of the open space of the U-shaped observation groove 2011 on the front side of the processing tooling. This can prevent the U-shaped observation groove 2011 on this front side from lacking shielding and being directly exposed during the cutting process, causing the high-temperature metal chips to splash out through the directly exposed U-shaped observation groove 2011, which helps to ensure the enclosure effect of the U-shaped protective cover 2 on the high-temperature metal chips and ensure its safety protection performance for the staff.

[0037] During the cutting process, the double-acting cylinder 5 drives the two T-shaped sliding members 4 and the rectangular covers 401 to slide towards each other through its two piston rods 501, and controls the two rectangular covers 401 to enclose most of the open space of the U-shaped observation groove 2011. When the two T-shaped sliding members 4 are driven to slide towards each other, they abut against and contact the two longitudinally arranged connecting rods 4022, and push and drive the two I-shaped sliding frames 402 and the two clamping plates 4021 to slide towards each other to clamp the metal raw material shaft 8. After a cutting operation is completed, the double-acting cylinder 5 drives the two T-shaped sliding members 4 and the rectangular covers 401 to slide away from each other, opening the U-shaped observation groove 2011. When the two T-shaped sliding members 4 are driven to slide away from each other, their horizontal side rods respectively abut against and contact the force-receiving disks 4023 on the corresponding sides, and push and drive the two I-shaped sliding frames 402 and the clamping plates 4021 to slide away from each other to loosen the metal raw material shaft 8. In this way, through the power transmission of the T-shaped sliding members 4, the force-receiving disks 4023 and the longitudinally arranged connecting rods 4022, the two rectangular covers 401 and the clamping plates 4021 can share one double-acting cylinder 5 for driving, which can save the driving unit that needs to be additionally configured with sliding switches for the two rectangular covers 401 and the automatic control system for controlling their automatic opening and closing before and after the cutting operation, helping to reduce the power consumption and cost of the processing tooling.

[0038] In the initial state, when the two T-shaped sliding members 4 are driven to slide towards each other, they first drive the two rectangular covers 401 to slide along the tail end portion of the horizontal shaft of the I-shaped sliding frame 402. During this process, their horizontal side rods gradually approach the two vertical connecting rods 4022 and abut against the two vertical connecting rods 4022. Since in the initial state, the distance between the horizontal side rod of the T-shaped sliding member 4 and the vertical connecting rod 4022 is equal to the distance between the end of the rectangular cover 401 far from the T-shaped sliding member 4 and the clamping side of the clamping plate 4021, when the horizontal side rods of the two T-shaped sliding members 4 abut against the two vertical connecting rods 4022 and start to push and drive the two I-shaped sliding frames 402 and the two clamping plates 4021 to slide synchronously, the ends of the two rectangular covers 401 far from the T-shaped sliding members 4 (i.e., the leading ends of the rectangular covers 401) and the clamping sides of the two clamping plates 4021 are on the same vertical reference plane and are flush. This can ensure that the leading ends of the two rectangular covers 401 and the clamping sides of the two clamping plates 4021 can be simultaneously and synchronously pressed against the metal raw material shaft 8, preventing the leading ends of the two rectangular covers 401 from being pre-pressed against the metal raw material shaft 8 and blocking the continuous sliding of the two clamping plates 4021 towards each other, resulting in the two clamping plates 4021 not being pressed against the metal raw material shaft 8 to effectively clamp and position the metal raw material shaft 8, and affecting the normal realization of the design that the two clamping plates 4021 and the two rectangular covers 401 use the same two-way cylinder 5 to drive and implement their corresponding functions.

[0039] Since the U-shaped observation groove 2011 has a certain length, in the initial state, the shielding distance between the two rectangular covers 401 and the metal raw material shaft 8 is greater than the clamping distance between the two clamping plates 4021 and the metal raw material shaft 8. During the process of the two clamping plates 4021 and the two rectangular covers 401 being driven to slide towards each other to perform the closing and clamping functions respectively, the two T-shaped sliding members 4 can first drive the two rectangular covers 401 to slide along the tail end part of the horizontal sliding shaft of the two I-shaped sliding frames 402 (i.e., slide within the sliding stroke formed by the distance between the vertical connecting rod 4022 and the horizontal side rod of the T-shaped sliding member 4). Since during this process, the horizontal side rod of the T-shaped sliding member 4 has not yet abutted against the vertical connecting rod 4022, the I-shaped sliding frame 402 remains stationary, and the T-shaped sliding member 4 and the rectangular cover 401 slide relative to the I-shaped sliding frame 402 and the clamping plate 4021 in advance. Such a design that the T-shaped sliding member 4 drives the rectangular cover 401 to slide before the clamping plate 4021 can make the sliding stroke of the two rectangular covers 401 driven be greater than the sliding stroke of the two clamping plates 4021 when the two clamping plates 4021 and the two rectangular covers 401 use the same double-acting cylinder 5 to drive and perform the clamping and closing functions respectively, so that the sliding stroke of the two rectangular covers 401 is sufficient to cover the larger shielding distance formed between them and the metal raw material shaft 8, ensuring that the two rectangular covers 401 can complete the normal and effective shielding of the U-shaped observation groove 2011 with a certain length, which helps to ensure the normal realization of the design that the two clamping plates 4021 and the two rectangular covers 401 use the same double-acting cylinder 5 to drive and perform their corresponding functions.

[0040] It should be noted that: This processing tooling is essentially a machine tool for cutting processing.

[0041] The working principle of this embodiment: When the cutting motor 6 and the circular cutting blade 9 are driven to slide down to perform cutting on the metal raw material shaft 8, the two T-shaped sliding parts 601 slide down synchronously with the cutting motor 6. When the corresponding side T-shaped sliding part 601 slides down and approaches the photoelectric proximity switch 10 (refer to Figure 4), the photoelectric proximity switch 10 is triggered and emits a high-level electrical signal to the automation controller. When the T-shaped sliding part 601 slides downward to trigger the photoelectric proximity switch 10, the circular cutting blade 9 approaches the metal raw material shaft 8 and is about to contact and cut the metal raw material shaft 8. When the automation controller receives this high-level signal, it determines that the circular cutting blade 9 is about to contact and cut the metal raw material shaft 8. At this time, it sends a contraction control instruction to the telescopic control unit of the double-acting cylinder 5. After receiving the contraction control instruction, the telescopic control unit controls the two piston rods 501 to contract and slide towards each other. When the two piston rods 501 contract, they drive the two clamping plates 4021 and the two rectangular covers 401 to slide towards each other through the two T-shaped sliding parts 4, respectively clamping and covering the metal raw material shaft 8 and the U-shaped observation groove 2011 on the front side. When a cutting operation is completed and the cutting motor 6 and the circular cutting blade 9 are driven to slide upward for reset, when the corresponding side T-shaped sliding part 601 slides upward following the cutting motor 6, it triggers the photoelectric proximity switch 10 again. After the photoelectric proximity switch 10 is triggered again, it emits a high-level electrical signal to the automation controller. When the automation controller receives this high-level signal, it determines that a cutting operation is completed and the cutting motor 6 and the circular cutting blade 9 start to slide upward for reset. At this time, it sends an extension control instruction to the telescopic control unit of the double-acting cylinder 5. After receiving the extension control instruction, the telescopic control unit controls the two piston rods 501 to slide and extend away from each other. When the two piston rods 501 extend, they drive the two clamping plates 4021 and the two rectangular covers 401 to slide away from each other through the two T-shaped sliding parts 4, respectively loosening and opening the metal raw material shaft 8 and the U-shaped observation groove 2011 on the front side. In this way, the automation controller, the photoelectric proximity switch 10, and the telescopic control unit of the double-acting cylinder 5 together form a set of intelligent automation control systems. This system can control the double-acting cylinder 5 to automatically expand and contract before and after the cutting operation, realizing the automatic tightening and loosening and automatic opening and closing of the metal raw material shaft 8 and the U-shaped observation groove 2011 on the front side before and after the cutting operation.

[0042] In this article, the following points need to be noted: 1. The attached drawings of the embodiments of the present invention only relate to the structures involved in the embodiments of the present invention. Other structures can refer to the general design.

[0043] 2. Without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other to obtain new embodiments.

[0044] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A processing tooling for manufacturing a bicycle pedal assembly, comprising a table board (1), and a U-shaped protective cover (2) is fixedly installed at the top of the table board (1). The U-shaped protective cover (2) is composed of a flat rectangular cover (201) at the lower side and a flat semi-circular cover (202) at the upper side which are butted together; It is characterized in that U-shaped observation grooves (2011) are formed in the two long side plates of the flat rectangular cover (201); Two T-shaped sliding members (4) are symmetrically and slidably installed on the table board (1). One end of the horizontal side rod of each of the two T-shaped sliding members (4) is welded with a rectangular cover (401). The two rectangular covers (401) are slidably attached to the corresponding long side plates of the flat rectangular cover (201), and are used to cover most of the open space of the U-shaped observation grooves (2011) on the long side plates during the cutting process; Two I-shaped sliding frames (402) are symmetrically and slidably installed at the top of the table board (1). The tail ends of the two horizontal sliding shafts of the I-shaped sliding frames (402) are in through-sliding fit with the horizontal side rods of the corresponding T-shaped sliding members (4). The tail ends of the two horizontal sliding shafts are welded with force-receiving discs (4023). The horizontal side rods of the T-shaped sliding members (4) are located between the two force-receiving discs (4023) and the vertical connecting rods (4022) inside the I-shaped sliding frames (402); Two clamping plates (4021) are symmetrically welded to the front ends of the two I-shaped sliding frames (402); In the initial state, the distance between the horizontal side rod of the T-shaped sliding member (4) and the vertical connecting rod (4022) is equal to the distance between the end of the rectangular cover (401) far from the T-shaped sliding member (4) and the clamping side of the clamping plate (4021).

2. The processing tool for manufacturing a bicycle pedal assembly according to claim 1, wherein, A two-way cylinder (5) is fixedly suspended at the middle position of the bottom of the table board (1). The front ends of the two piston rods (501) which are symmetrically arranged and telescopically slid in opposite directions on the two-way cylinder (5) are respectively fixedly connected to the bottom ends of the T-shaped sliding members (4).

3. A processing tool for manufacturing a bicycle pedal assembly according to claim 1, characterized in that, Two short sliding grooves (106) are symmetrically and penetratingly formed in the table board (1) near the U-shaped protective cover (2). The vertical side rods of the two T-shaped sliding members (4) are in through-sliding fit with the two short sliding grooves (106) correspondingly; Four positioning ear blocks (103) are symmetrically welded on the part of the top of the table board (1) between the two short sliding grooves (106). The four horizontal sliding shafts of the two I-shaped sliding frames (402) are in through-sliding fit with the four positioning ear blocks (103) correspondingly.

4. The processing tool for manufacturing a bicycle pedal assembly according to claim 1, wherein, A transverse cutting groove (105) is penetratingly formed in the middle position of the table board (1). The flat rectangular cover (201) is welded on the part of the top of the table board (1) around the transverse cutting groove (105). The vertical sliding groove (2012) and the flat semi-circular cover (202) are locked and butted by bolts; The U-shaped observation grooves (2011) are formed in the middle position of the lower half of the long side wall of the flat rectangular cover (201), and the bottom opening thereof abuts against the top of the table board (1).

5. The processing tool for manufacturing a bicycle pedal assembly according to claim 1, characterized in that, At the top of the platen (1), two vertical guide shafts (102) are symmetrically welded near the flat rectangular cover (201). Between the upper halves of the two vertical guide shafts (102), two horizontal beam rods (1021) are welded at intervals up and down. A cutting motor (6) is slidably arranged between the two vertical guide shafts (102). The first end of the rotating shaft of the cutting motor (6) is fixedly sleeved with a circular cutting blade (9), and the circular cutting blade (9) is located in the U-shaped protective cover (2).

6. The processing tool for manufacturing a bicycle pedal assembly according to claim 5, characterized in that, In the middle position of the upper half of a long side wall of the flat rectangular cover (201), a vertical chute (2012) is penetrated and opened. The bottom opening of the vertical chute (2012) communicates with the corresponding U-shaped observation groove (2011). In the middle position of a semi-circular side wall of the flat semi-circular cover (202), a U-shaped groove (2021) is penetrated and opened. The bottom opening of the U-shaped groove (2021) communicates with the top opening of the vertical chute (2012). The U-shaped groove (2021) and the vertical chute (2012) are jointly connected to form a complete U-shaped chute, and the rotating shaft of the cutting motor (6) is slidably matched with the U-shaped chute through penetration.

7. A processing tool for manufacturing a bicycle pedal assembly according to claim 6, characterized in that, At the top of the housing of the cutting motor (6), a U-shaped driving frame (3) is fixedly connected. The top U-shaped part of the U-shaped driving frame (3) is slidably matched with the flat semi-circular cover (202). At the bottom of the short vertical side shaft of the U-shaped driving frame (3), a rectangular handle frame (301) is welded. The long vertical side shaft of the U-shaped driving frame (3) is slidably matched with the two horizontal beam rods (1021) through penetration.

8. A processing tool for manufacturing a bicycle pedal assembly according to claim 6, characterized in that, Two T-shaped sliding parts (601) are symmetrically fixedly connected to the housing of the cutting motor (6). At the middle and upper positions of the two vertical guide shafts (102), limiting rings (1022) are welded and sleeved. The first end parts of the two T-shaped sliding parts (601) are correspondingly slidably matched with the parts of the two vertical guide shafts (102) below the limiting rings (1022). Springs are sleeved on the two vertical guide shafts (102), and the springs are compressed and clamped between the first end parts of the T-shaped sliding parts (601) and the platen (1).

9. A processing tool for manufacturing a bicycle pedal assembly according to claim 2, characterized in that, It further includes an electric control box (7). An automatic controller and a contactor for controlling the start and stop of the cutting motor (6) are arranged inside the electric control box (7). At the top of the platen (1), near the position of one vertical guide shaft (102), a vertical mounting plate (104) is welded. At the top part of the vertical mounting plate (104), a photoelectric proximity switch (10) is fixedly installed, and the photoelectric proximity switch (10) is electrically connected to the automatic controller. The double-acting cylinder (5) is connected to an external compressed gas supply device through a high-pressure air pipe, and the telescopic control unit of the double-acting cylinder (5) is electrically connected to the automatic controller.

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