Five-station spinning machine for machining heavy belt pulley

Abstract

The invention discloses a five-station spinning machine for processing a heavy belt pulley, which comprises a base, a positioning mechanism for positioning the belt pulley to be processed and a spinning machine assembly for processing the belt pulley to be processed, a to-be-machined station used for containing a to-be-machined belt pulley is formed between the spinning machine assembly and the positioning mechanism, the upper end face of the base corresponds to the to-be-machined station, the positioning mechanism comprises a sliding assembly, a positioning assembly and a transmission assembly, and the sliding assembly, the positioning assembly and the base are concentrically arranged on the upper end face of the base. The sliding assembly is pressed to slide downwards so as to drive the positioning assembly to move upwards towards the position of the center through hole of the belt pulley under thrust through the transmission assembly, the positioning mechanism can abut against the inner circumferential wall of the center through hole of the belt pulley after moving upwards, the five-station spinning machine can stably position a part to be machined, operation is convenient, the machining efficiency is high, and the machining precision is high. The device is suitable for processing heavy belt pulleys.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spinning machines, in particular to a five-station spinning machine for processing heavy belt pulleys. BACKGROUND

[0002] In the field of mechanical transmission, belt pulleys are commonly used parts. Traditional belt pulleys are generally relatively small in size, and the manufacturing process is mainly casting and forging, and the material is often cast iron or steel. In existing large equipment, a heavy belt pulley is required, which has large carrying power and high torque transmission. There are significant differences in size, material and performance requirements from traditional belt pulleys. When processing such heavy belt pulleys, the surface needs to be processed by a spinning machine. The existing ordinary belt pulley generally uses a three-station or four-station spinning machine. However, due to the particularity of the heavy belt pulley, although the three-station and four-station spinning machines on the market can process it, the completion degree of processing is low, the work efficiency is low, and the special positions of some parts cannot be processed by the existing spinning machine. The existing spinning machine on the market can fix the ordinary belt pulley, but due to the large weight of the heavy belt pulley, it needs to be rotated during processing. The existing spinning machine fixing structure cannot stably fix the heavy belt pulley in the processing station, and the operation is not convenient. SUMMARY

[0003] In view of the deficiencies in the prior art, the purpose of the present application is to solve the problem of inconvenient fixing of the heavy belt pulley and inconvenient spinning processing in the background art.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: including a base, a positioning mechanism for positioning the belt pulley to be processed, and a spinning machine assembly for processing the belt pulley to be processed. The spinning machine assembly and the positioning mechanism form a processing station for accommodating the belt pulley to be processed. The upper end surface of the base corresponds to the processing station. The positioning mechanism includes a sliding assembly, a positioning assembly, and a transmission assembly. The sliding assembly and the positioning assembly are concentrically arranged on the upper end surface of the base. The sliding assembly is pressed down to drive the positioning assembly to move upward by the transmission assembly. The positioning mechanism can abut the inner wall of the center hole of the belt pulley after moving upward.

[0005] As a further improvement of the present application, the transmission assembly includes a rack, a gear, a connecting rod, and a pull rod. The rack is connected to the sliding assembly. The gear is engaged with the rack. The connecting rod is fixedly arranged at a non-axial position of the gear. The gear rotates to drive the connecting rod to rotate. One end of the pull rod is connected to the connecting rod, and the other end is connected to the positioning assembly. The rotation of the gear drives the connecting rod to move, and in turn drives the pull rod to move the positioning assembly upward / downward along the center hole position of the belt pulley.

[0006] As a further improvement of the application, the positioning assembly comprises a positioning sleeve arranged on the upper end surface of the sliding assembly and coaxially arranged with the sliding assembly, a plurality of suction cups for adsorbing the inner circumferential wall of the central through hole of the pulley are uniformly arranged on the circumference of the positioning sleeve, a sliding rod is arranged on the suction cup, and the suction cup is in sliding connection with the positioning sleeve.

[0007] As a further improvement of the application, the pull rod is provided with a first pull ring and a second pull ring at two ends respectively, the first pull ring is sleeved on the connecting rod and rotationally connected with the connecting rod, and the second pull ring is sleeved on the positioning assembly and rotationally connected with the positioning assembly.

[0008] As a further improvement of the application, the positioning assembly comprises a sliding block coaxially arranged with the base, a connecting seat for connecting the second pull ring is arranged on the sliding block, and the second pull ring is rotationally connected with the connecting seat.

[0009] As a further improvement of the application, the sliding block comprises a guide part and a limiting part, the guide part is a conical end head with a top end upward, the radial width of the conical end head is gradually increased from top to bottom, and the limiting part is a cylindrical block.

[0010] As a further improvement of the application, the lower end surface of the base is provided with a cabinet, and the sliding assembly, the positioning assembly and the transmission assembly are arranged in the cabinet.

[0011] As a further improvement of the application, the sliding assembly is a sliding cylinder, the lower end of the sliding cylinder is connected with the rack, and the sliding cylinder moves downward under pressure to drive the gear to rotate through the rack.

[0012] As a further improvement of the application, the spinning machine assembly comprises five spinning machines, each of which moves towards / away from the processing station to be processed.

[0013] Compared with the prior art, the five-station spinning machine for processing heavy pulleys has the following beneficial effects: the sliding assembly and the positioning assembly are coaxially arranged, the positioning assembly is driven upward by the transmission assembly after being pressed and abuts against the inner circumferential wall of the central through hole of the pulley, self-centering clamping is formed, heavy pulleys can be adapted, and deviation caused by radial force during processing is effectively avoided; the positioning assembly is abutted against the inner circumferential wall of the central through hole in a manner, without the need for adjusting external clamps for different rim sizes, and can be compatible with heavy pulleys of various specifications of central through holes, thereby reducing tool replacement time and improving assembly efficiency; the linkage design of the sliding assembly and the transmission assembly realizes linkage of positioning action and workpiece placement, eliminates most of the positioning operation steps, reduces the participation of manual labor, reduces labor cost, and is convenient and stable to operate. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 isometric view of the present application; Figure 2 isometric view of the present application; Figure 1 isometric view of the present application; Figure 3 isometric view of the present application; Figure 4 isometric view of the present application;

[0015] Reference numeral: 1, base; 2, spinning machine assembly; 3, sliding assembly; 4, positioning assembly; 5, transmission assembly; 6, to be processed work station; 7, cabinet; 21, spinning machine; 31, sliding cylinder; 41, positioning sleeve; 42, suction cup; 43, sliding rod; 44, sliding block; 441, connecting seat; 442, conical end; 443, cylindrical block; 51, rack; 52, gear; 53, connecting rod; 54, pull rod; 541, first pull ring; 542, second pull ring. DETAILED DESCRIPTION

[0016] The present application will be further described in conjunction with the embodiments given in the accompanying drawings.

[0017] To achieve the above-mentioned purposes, the present application provides a five-station spinning machine 21 for processing heavy belt pulley, which comprises a base 1, a positioning mechanism for positioning the to-be-processed belt pulley, and a spinning machine assembly 2 for processing the to-be-processed belt pulley. The spinning machine assembly 2 and the positioning mechanism form a to-be-processed station for accommodating the to-be-processed belt pulley. The base 1 is provided with a to-be-processed work station 6 on the upper end surface. The positioning mechanism comprises a sliding assembly 3, a positioning assembly 4, and a transmission assembly 5. The sliding assembly 3 and the positioning assembly 4 are concentrically arranged on the upper end surface of the base 1. The sliding assembly 3 is pressed down to drive the positioning assembly 4 to move upward towards the center through-hole of the belt pulley by the transmission assembly 5. After the positioning mechanism moves upward, it can abut against the inner wall of the center through-hole of the belt pulley.

[0018] In the implementation of the present application, the positioning mechanism is composed of the sliding assembly 3, the positioning assembly 4, and the transmission assembly 5, which are concentrically arranged on the upper end surface of the base 1.

[0019] When the to-be-processed pulley is placed in the to-be-processed station 6, the external pressure acts on the sliding assembly 3 to make it slide downward along the central axis of the base 1. During the downward sliding of the sliding assembly 3, the transmission assembly 5 transmits the force to the positioning assembly 4. The transmission assembly 5 pushes the positioning assembly 4 to move upward towards the position of the central through hole of the pulley. When the positioning assembly 4 moves upward to a certain height, the outer peripheral wall thereof can abut against the inner peripheral wall of the central through hole of the pulley, thereby achieving accurate positioning of the to-be-processed pulley. In the implementation of the present scheme, a positioning sleeve 41 and a slider 44 capable of moving in the positioning sleeve 41 can be arranged, and a plurality of suction cups 42 capable of being used for adsorbing and positioning the inner peripheral wall of the central through hole of the heavy pulley are uniformly arranged on the positioning sleeve 41. The suction cup 42 has a rod capable of being slidably connected with the positioning sleeve 41. The suction cup 42 is moved towards the inner peripheral wall of the central through hole of the pulley until abutting against the inner peripheral wall by extruding the rod through the movement of the slider 44. The present scheme needs to link the sliding assembly 3, the positioning assembly 4 and the transmission assembly 5, and the gravity of the heavy pulley is used as the driving force to drive the sliding assembly 3 to move.

[0020] As an improved specific embodiment, the transmission assembly 5 includes a rack 51, a gear 52, a connecting rod 53 and a pull rod 54. The rack 51 is connected with the sliding assembly 3. The gear 52 is engaged with the rack 51. The non-axial position of the gear 52 is fixedly provided with the connecting rod 53. The gear 52 rotates to drive the connecting rod 53 to rotate. One end of the pull rod 54 is connected with the connecting rod 53, and the other end thereof is connected with the positioning assembly 4. The rotation of the gear 52 drives the connecting rod 53 to move, thereby driving the positioning assembly 4 to move upward / downward along the position of the central through hole of the pulley. The sliding assembly 3 is a sliding cylinder 31. The lower end of the sliding cylinder 31 is connected with the rack 51. The sliding cylinder 31 moves downward under pressure to drive the gear 52 to rotate through the rack 51. The two ends of the pull rod 54 are respectively provided with a first pull ring 541 and a second pull ring 542. The first pull ring 541 is sleeved on the connecting rod 53 and is rotatably connected with the connecting rod 53. The second pull ring 542 is sleeved on the positioning assembly 4 and is rotatably connected with the positioning assembly 4.

[0021] In the implementation of the present scheme, one end of the rack 51 is fixedly connected with the sliding assembly 3. When the sliding assembly 3 slides downward under pressure, the rack 51 moves downward. Since the gear 52 is engaged with the rack 51, the downward movement of the rack 51 drives the gear 52 to rotate. The gear 52 is fixedly connected with the housing of the sliding assembly 3 or the equipment. The fixed connection of the gear 52 with the housing or the equipment is the prior art in the field. The non-axial position of the gear 52 is fixedly provided with the connecting rod 53. When the gear 52 rotates, the connecting rod 53 moves in a circular motion with the gear 52. At this time, the movement path of the connecting rod 53 is a non-equidiameter circular path, such as an elliptical path. In other embodiments, the skilled in the art can synchronously drive the positioning assembly 4 through two groups of transmission assemblies 5 to make the positioning assembly 4 more stable.

[0022] In this embodiment, one end of the pull rod 54 is preferably mounted on the connecting rod 53 via a first pull ring 541, forming a rotational connection with the connecting rod 53; the other end is rotationally connected to the positioning assembly 4 via a second pull ring 542. When the connecting rod 53 moves in a circular motion with the gear 52, the pull rod 54 is displaced, which in turn drives the positioning assembly 4 upward or downward along the central through hole of the pulley. The pull ring in this embodiment has a curved wall, which is less likely to damage the connection between the components when connected, thereby extending the service life.

[0023] As an improved specific embodiment, the positioning assembly 4 includes a positioning sleeve 41, which is arranged on the upper end surface of the sliding assembly 3 and is coaxial with the sliding assembly 3. Several suction cups 42 for adsorbing the inner wall of the central through hole of the pulley are evenly distributed circumferentially on the positioning sleeve 41, and a slide rod 43 is provided on the suction cup 42, and the suction cup 42 is slidably connected to the positioning sleeve 41; the positioning assembly 4 includes a slider 44, which is coaxial with the base 1, and a connecting seat 441 for connecting the second pull ring 542 is provided on the slider 44, and the second pull ring 542 is rotatably connected to the connecting seat 441; the slider 44 includes a guiding part and a limiting part, the guiding part is a conical end head 442 with the top facing upward, the radial width of the conical end head 442 is gradually increased from top to bottom, and the limiting part is a cylindrical block 443.

[0024] When implementing this solution, those skilled in the art can adopt the arrangement of a positioning sleeve 41 and a slider 44 that can move in the positioning sleeve 41, and evenly arrange a number of suction cups 42 on the positioning sleeve 41 that can be used to adsorb and position the inner peripheral wall of the central through hole of the heavy pulley. This suction cup 42 has a rod that can be slidably connected to the positioning sleeve 41, and then by moving the slider 44 to squeeze the rod, the suction cup 42 moves toward the inner peripheral wall of the central through hole of the pulley until it is offset. This solution requires the sliding assembly 3, the positioning assembly 4 and the transmission assembly 5 to be arranged in a uniform manner. The two form a linkage, and the sliding component 3 is driven to move by the gravity of the heavy pulley itself; this solution preferably adopts a slider 44 with a guide portion having a conical end 442. When the slider 44 moves upward toward the positioning sleeve 41, the conical end 442 will preferentially contact the slide rod 43 and is not easy to get stuck, and there can be a process of gradually pushing the slide rod 43. The limiting part at the lower end is a cylindrical block 443. The volume of the cylindrical block 443 is uniform, and the suction cup 42 can be evenly pushed to the inner wall of the central through hole of the pulley through the slide rod 43 to achieve positioning.

[0025] As an improved specific embodiment, a cabinet 7 is provided on the lower end surface of the base 1 , and the sliding assembly 3 , the positioning assembly 4 , and the transmission assembly 5 are all placed in the cabinet 7 .

[0026] In the implementation of the scheme, the cabinet 7 is arranged for protecting the sliding assembly 3, the positioning assembly 4 and the transmission assembly 5. The cabinet 7 in the scheme can wrap the three assemblies, so that dust is prevented from entering and causing jam.

[0027] As an improved embodiment, the spinning machine assembly 2 comprises five spinning machines 21, each of which moves towards or away from the working position 6 to be processed.

[0028] In the implementation of the scheme, preferably, five spinning machines 21 are used to process different positions of the belt pulley respectively. The five spinning machines 21 can be of different types according to the needs of those skilled in the art.

[0029] The above is only a preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as the protection scope of the present application.

Claims

1. A five-station spinning machine for processing heavy pulleys, characterized in that: It includes a base, a positioning mechanism for positioning the pulley to be processed and a spinning machine assembly for processing the pulley to be processed. A processing position for accommodating the pulley to be processed is formed between the spinning machine assembly and the positioning mechanism. The upper end surface of the base is arranged corresponding to the processing position. The positioning mechanism includes a sliding assembly, a positioning assembly and a transmission assembly. The sliding assembly and the positioning assembly are concentrically arranged on the upper end surface of the base. The sliding assembly is pressed down to drive the positioning assembly to move upward toward the center through hole position of the pulley through the transmission assembly. After moving upward, the positioning mechanism can be against the inner circumferential wall of the center through hole of the pulley.

2. The five-station spinning machine for processing heavy pulleys according to claim 1, characterized in that: The transmission assembly includes a rack, a gear, a connecting rod, and a pull rod. The rack is connected to the sliding assembly, the gear is meshed with the rack, a connecting rod is fixed at a non-axial position of the gear, the gear rotates to drive the connecting rod to rotate, one end of the pull rod is connected to the connecting rod, and the other end is connected to the positioning assembly. The rotation of the gear drives the connecting rod to move, and then the pull rod drives the positioning assembly to move up / down along the center through hole position of the pulley.

3. The five-station spinning machine for processing heavy pulleys according to claim 1, characterized in that: The positioning assembly includes a positioning sleeve, which is arranged on the upper end surface of the sliding assembly and is coaxial with the sliding assembly. A number of suction cups for adsorbing the inner wall of the central through hole of the pulley are evenly distributed circumferentially on the positioning sleeve, and a sliding rod is provided on the suction cup, which is slidably connected to the positioning sleeve.

4. The five-station spinning machine for processing heavy pulleys according to claim 2, characterized in that: A first pull ring and a second pull ring are respectively provided at both ends of the pull rod. The first pull ring is sleeved on the connecting rod and is rotatably connected to the connecting rod. The second pull ring is sleeved on the positioning assembly and is rotatably connected to the positioning assembly.

5. The five-station spinning machine for processing heavy pulleys according to claim 3, characterized in that: The positioning assembly includes a slider, which is coaxially arranged with the base. A connecting seat for connecting the second pull ring is provided on the slider, and the second pull ring is rotatably connected to the connecting seat.

6. The five-station spinning machine for processing heavy pulleys according to claim 5, characterized in that: The slider includes a guide portion and a limiting portion. The guide portion is a conical end with the top facing upward, and the radial width of the conical end is gradually increased from top to bottom. The limiting portion is a cylindrical block.

7. The five-station spinning machine for processing heavy pulleys according to claim 1, characterized in that: A cabinet is provided on the lower end surface of the base, and the sliding assembly, positioning assembly and transmission assembly are all placed in the cabinet.

8. The five-station spinning machine for processing heavy pulleys according to claim 2, characterized in that: The sliding assembly is a slide cylinder, the lower end of which is connected to the rack. The slide cylinder is pressed and moves downward to drive the gear to rotate through the rack.

9. The five-station spinning machine for processing heavy pulleys according to claim 1, characterized in that: The spinning machine assembly includes five spinning machines, and each of the spinning machines moves toward or away from a workstation to be processed.

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