Contact wheel grinder for contactor

Abstract

The utility model relates to contactor contact grinding technology field, concretely relates to a contactor's contact turntable grinding machine, including work bench, the top fixed connection of work bench has the grinding mechanism, and the grinding mechanism includes the rotary disc rotationally connected in the top of work bench, and the inside fixed connection of work bench has the step motor, and the output of step motor passes through the top of work bench and is fixedly connected on the axle portion of rotary disc, and the top rotationally connected of rotary disc has the convenient disc, and the top fixed connection of convenient disc has the fixed link, and the one end fixed connection of fixed link is on the top of work bench, and the top fixed connection of convenient disc has two second support plates, and the one end fixed connection of two second support plates all has first electric telescopic link. Compared with prior art, the application solves the problem that the traditional single-station grinding equipment can only process single piece, and the efficiency is low, and also reduces the idle time of equipment, realizes the continuous, high-beat production mode.

Description

Technical Field

[0001] This utility model relates to the field of contactor contact grinding technology, and in particular to a contactor contact turntable grinding machine. Background Technology

[0002] Contactors are electrical components widely used in power control systems. Their internal contacts are prone to developing oxide layers or ablation spots during long-term current switching, affecting current conduction efficiency and service life. To ensure the contactor's conductivity and operational stability, the contact surface is typically precision ground using a grinding machine during production or maintenance to achieve a smooth, flat surface and lower contact resistance. Existing contact grinding equipment generally includes a grinding head, fixtures, and a drive mechanism. The grinding head mechanically grinds the contacts to eliminate surface defects.

[0003] A Chinese patent has been published: a grinding machine for ceramic assembly contacts of new energy contactors, patent announcement number: CN222627240U. The patent "includes a base, a displacement component on the base, a clamping component on the movable end of the displacement component, a frame on the base, and a grinding mechanism on the frame above the clamping component. The grinding mechanism includes a drive component, a feeding wheel, a winding wheel, a sanding belt, and a support block. The feeding wheel and the winding wheel are rotatably mounted on the frame. The output end of the drive component is linked to the winding wheel to drive the winding wheel to rotate. The support block is mounted on the frame."

[0004] Although this grinding machine can grind the contacts of contactor ceramic assemblies without manual grinding, reducing labor intensity and improving grinding efficiency, it lacks the ability to operate continuously at multiple stations. It generally adopts a single-station grinding structure, meaning that only one contact can be clamped and processed at a time. After processing, the operator needs to manually remove the ground contact and put in the next contact to be ground before the equipment can continue to work. This single-station reciprocating processing method results in a slow overall production cycle, low processing efficiency, and a lot of idle time, which seriously affects the continuity of the production line. Therefore, there is an urgent need to improve the existing technology to a contactor contact grinding structure that can achieve multi-station grinding and improve processing efficiency. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a contactor rotary grinding machine to solve the problems of lack of multi-station continuous operation capability, the common use of single-station grinding structure, that is, only one contact can be clamped and processed at a time, resulting in slow production cycle and low processing efficiency.

[0006] To achieve the above objectives, this utility model provides a contactor contactor rotary grinding machine, comprising a worktable, a grinding mechanism fixedly connected to the top of the worktable, the grinding mechanism including a rotating disk rotatably connected to the top of the worktable, a stepper motor fixedly connected inside the worktable, the output end of the stepper motor passing through the top of the worktable and fixedly connected to the shaft of the rotating disk, a storage plate rotatably connected to the top of the rotating disk, a fixing rod fixedly connected to the top of the storage plate, one end of the fixing rod fixedly connected to the top of the worktable, two second support plates fixedly connected to the top of the storage plate, a first electric telescopic rod fixedly connected to one end of each of the two second support plates, a connecting frame fixedly connected to the telescopic end of the first electric telescopic rod, two grinding discs for grinding contacts rotatably connected to the bottom of the connecting frame, a support frame fixedly connected to the top of the worktable, and a feeding mechanism for feeding the ground contacts onto the top of the support frame.

[0007] Preferably, a rotary motor is fixedly connected inside the connecting frame, and a driving wheel and driven wheels distributed on both sides of the driving wheel are rotatably connected to the inner wall of the connecting frame. The output end of the rotary motor passes through the inner wall of the connecting frame and is fixedly connected to the shaft of the driving wheel. The driving wheel meshes with the driven wheels on both sides respectively, and the shafts of the two driven wheels pass through the bottom of the connecting frame and are fixedly connected to the shaft of the grinding disc.

[0008] Preferably, the top of the rotating disk is fixedly connected to a plurality of first support plates that are evenly distributed at equal intervals, and the side walls of the first support plates are fixedly connected to placement plates for placing contacts, and the top of the placement plates is provided with placement grooves for accommodating contacts.

[0009] Preferably, the unloading mechanism includes a support frame fixedly connected to the top of the workbench, a second electric telescopic rod fixedly connected to the top of the workbench, the telescopic end of the second electric telescopic rod passing through the top of the support frame and fixedly connected to a rising plate, a spring fixedly connected to the top of the rising plate, a top plate for pushing material fixedly connected to the top of the spring, and a pull rope fixedly connected between the side wall of the top plate and the side wall of the support frame.

[0010] Preferably, the side wall of the workbench is fixedly connected to a storage box for storing the ground contacts, and the side wall of the support frame is fixedly connected to a feeding plate for guiding the contacts during feeding.

[0011] Preferably, the bottom of the grinding disc is recessed inward, and the grinding disc will contact the top and outer wall of the contact during grinding.

[0012] Preferably, limiting plates are fixedly connected to both sides of the bottom of the connecting frame, and the limiting plates will abut against the top of the contactor's contacts when the grinding disc is grinding.

[0013] The beneficial effects of this utility model are:

[0014] 1. This contactor contactor rotary grinding machine, through the setting of a multi-station grinding mechanism composed of a rotary disk, a stepper motor, and a connecting frame, enables the equipment to achieve multi-station cyclic indexing grinding operations. While grinding is being performed at one station, other stations can simultaneously complete loading or unloading operations, greatly improving the overall utilization rate and production efficiency of the equipment. This structure not only solves the problem of traditional single-station grinding equipment being able to process only one piece and having low efficiency, but also reduces the idle time of the equipment, realizing a continuous, high-cycle production mode.

[0015] 2. The contactor rotary grinding machine features a feeding mechanism comprised of a second electric telescopic rod, a rising plate, a spring, a top plate, and a pull rope. This mechanism enables automatic ejection and guided feeding of the ground contacts. During the rising of the top plate, the pull rope acts as a limit, causing the top plate to automatically tilt after reaching a certain height. This allows the contacts to slide down along the feeding plate and smoothly enter the placement box, thus achieving automatic material collection. This process eliminates the need for manual removal of the workpiece, reducing operational steps and labor intensity. It also ensures safe feeding of the contacts, preventing surface scratches caused by manual contact. More importantly, the feeding action and grinding operation can be performed simultaneously without affecting the normal processing of other stations. This allows for parallel processing of multiple operations, improving production cycle time and overall automation level, significantly enhancing the practicality and efficiency of the equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the rotating disk and the placement plate of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the first electric telescopic rod and support frame of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the driving wheel and driven wheel of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the support frame and the second electric telescopic rod of this utility model;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the top plate and pull rope of this utility model.

[0023] The diagram is marked as follows:

[0024] 1. Workbench; 2. Rotary disk; 3. Stepper motor; 4. First support plate; 5. Placement plate; 6. Placement slot; 7. Second support plate; 8. First electric telescopic rod; 9. Connecting frame; 10. Drive wheel; 11. Rotary motor; 12. Driven wheel; 13. Grinding disc; 14. Support frame; 15. Second electric telescopic rod; 16. Lifting plate; 17. Spring; 18. Top plate; 19. Pull rope; 20. Placement box; 21. Unloading plate; 22. Limiting plate; 23. Convenient placement tray; 24. Fixing rod. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0026] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] like Figures 1 to 6As shown, a contactor contactor rotary grinding machine includes a worktable 1. A grinding mechanism is fixedly connected to the top of the worktable 1. The grinding mechanism includes a rotary disk 2 rotatably connected to the top of the worktable 1. A stepper motor 3 is fixedly connected inside the worktable 1. The output end of the stepper motor 3 passes through the top of the worktable 1 and is fixedly connected to the shaft of the rotary disk 2. A storage tray 23 is rotatably connected to the top of the rotary disk 23. A fixing rod 24 is fixedly connected to the top of the storage tray 23. One end of the fixing rod 24 is fixedly connected to the top of the worktable 1. Two second support plates 7 are fixedly connected to the top of the storage tray 23. A first electric telescopic rod 8 is fixedly connected to one end of each of the two second support plates 7. A connecting frame 9 is fixedly connected to the telescopic end of the first electric telescopic rod 8. Two grinding discs for grinding the contacts are rotatably connected to the bottom of the connecting frame 9. 13. A support frame 14 is fixedly connected to the top of the workbench 1. A feeding mechanism for feeding the ground contacts is provided on the top of the support frame 14. A rotary motor 11 is fixedly connected inside the connecting frame 9. A drive wheel 10 and driven wheels 12 distributed on both sides of the drive wheel 10 are rotatably connected to the inner wall of the connecting frame 9. The output end of the rotary motor 11 passes through the inner wall of the connecting frame 9 and is fixedly connected to the shaft of the drive wheel 10. The drive wheel 10 meshes with the driven wheels 12 on both sides. The shafts of the two driven wheels 12 pass through the bottom of the connecting frame 9 and are fixedly connected to the shaft of the grinding disc 13. A plurality of first support plates 4 are fixedly connected to the top of the rotating disc 2. A placement plate 5 for placing contacts is fixedly connected to the side wall of the first support plate 4. A placement groove 6 for accommodating contacts is opened on the top of the placement plate 5.

[0028] The operator first places multiple contactor contacts upside down in sequence into the placement slots 6 opened in the placement plate 5 on the top of the rotary disk 2. Then, the stepper motor 3 is started, which drives the rotary disk 2 to rotate in increments, rotating the contact of one station to the bottom of one of the connecting frames 9. At this time, the first electric telescopic rod 8 starts to move, driving the connecting frame 9 to move downward, so that the two grinding discs 13 at the bottom of the connecting frame 9 fit over the contactor contacts. When the grinding discs 13 contact the contacts, the rotary motor 11 starts, driving the driving wheel 10 and the driven wheel 12 to rotate. The driven wheel 12 then drives the grinding discs 13 to rotate synchronously, uniformly grinding the top and outer wall of the contacts. Since the bottom of the grinding discs 13 has an inwardly concave structure, the top and flat sidewalls of the contacts can be finely ground at the same time, achieving one-time forming.

[0029] After grinding is completed, the first electric telescopic rod 8 drives the connecting frame 9 to rise, and the stepper motor 3 continues to drive the rotary disk 2 to rotate, sending the contact into the grinding area to achieve secondary grinding. After the second grinding, the surface can be finely repaired, so that the micro-unevenness of the contact can be fully corrected, thereby reducing the contact resistance and improving the conductivity. At the same time, through the combination of indexing rotation and multi-station cyclic operation, other stations can perform loading or unloading operations while one contact is being ground, which greatly improves the overall grinding efficiency. This structure effectively overcomes the problems of traditional single-station grinding equipment that can only process one contact at a time, slow processing cycle, and low production efficiency.

[0030] Further, see attached document. Figure 5 and 6 As shown, the unloading mechanism includes a support frame 14 fixedly connected to the top of the workbench 1. A second electric telescopic rod 15 is fixedly connected to the top of the workbench 1. The telescopic end of the second electric telescopic rod 15 passes through the top of the support frame 14 and is fixedly connected to a rising plate 16. A spring 17 is fixedly connected to the top of the rising plate 16. A top plate 18 for unloading is fixedly connected to the top of the spring 17. A pull rope 19 is fixedly connected between the side wall of the top plate 18 and the side wall of the support frame 14. A storage box 20 for storing the ground contacts is fixedly connected to the side wall of the workbench 1. A unloading plate 21 for guiding the contacts during unloading is fixedly connected to the side wall of the support frame 14.

[0031] When the rotating disk 2 drives the ground contact to rotate directly above the support frame 14, the second electric telescopic rod 15 is activated, which drives the rising plate 16 to rise. The upward movement of the rising plate 16 causes the spring 17 and the top plate 18 to rise synchronously. When the top plate 18 rises to the position in the placement slot 6, it will lift the contact in the placement slot 6, thereby causing the contact to leave the placement slot 6. When the second electric telescopic rod 15 continues to move upward, due to the limitation of the length of the pull rope 19 (the length of the pull rope 19 is 6 cm), one side of the top plate 18 is pulled by the pull rope 19 to shift towards the lower plate 21, so that the top plate 18 forms an inclined angle, causing the contact to slide down along the lower plate 21 and finally be guided into the placement box 20 to complete the automatic material collection.

[0032] No manual intervention is required during the entire feeding process. After the feeding action is completed, the rotary table 2 can continue to rotate, so that the station automatically returns to the feeding position. The operator only needs to put the contact to be ground back into the placement slot 6. Feeding and grinding are carried out simultaneously, which effectively realizes the parallel operation of grinding, feeding and feeding, improves the automation level and production cycle of the equipment, and further solves the problems of low efficiency and cumbersome operation of existing equipment.

[0033] Further, see attached document. Figure 4 As shown, the bottom of the grinding disc 13 is concave inward, and the grinding disc 13 will come into contact with the top of the contact and the outer wall during grinding.

[0034] This increases the grinding contact area, allowing for the polishing of both the upper surface and the outer wall of the contact in a single grinding process.

[0035] Further, see attached document. Figure 2 and 4 As shown, limit plates 22 are fixedly connected to both sides of the bottom of the connecting frame 9. When the grinding disc 13 is grinding, the limit plates 22 will abut against the top of the contactor's contacts.

[0036] The limiting plate 22 abuts against the top of the contactor contact, which provides stable support for the contact during the grinding process, ensuring that the contact runs smoothly under high-speed rotation and avoiding uneven grinding caused by vibration or displacement.

[0037] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0038] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A contactor contactor rotary grinding machine, comprising a worktable (1), characterized in that: A grinding mechanism is fixedly connected to the top of the worktable (1). The grinding mechanism includes a rotating disk (2) rotatably connected to the top of the worktable (1). A stepper motor (3) is fixedly connected inside the worktable (1). The output end of the stepper motor (3) passes through the top of the worktable (1) and is fixedly connected to the shaft of the rotating disk (2). A storage tray (23) is rotatably connected to the top of the rotating disk (2). A fixing rod (24) is fixedly connected to the top of the storage tray (23). One end of the fixing rod (24) is fixedly connected to the worktable (1). On the top of the workbench (1), two second support plates (7) are fixedly connected to the top of the hand placement tray (23). One end of each of the two second support plates (7) is fixedly connected to a first electric telescopic rod (8). The telescopic end of the first electric telescopic rod (8) is fixedly connected to a connecting frame (9). The bottom of the connecting frame (9) is rotatably connected to two grinding discs (13) for grinding the contacts. The top of the workbench (1) is fixedly connected to a support frame (14). The top of the support frame (14) is provided with a feeding mechanism for feeding the ground contacts.

2. The contactor rotary grinding machine according to claim 1, characterized in that, A rotary motor (11) is fixedly connected inside the connecting frame (9). A drive wheel (10) and driven wheels (12) distributed on both sides of the drive wheel (10) are rotatably connected to the inner wall of the connecting frame (9). The output end of the rotary motor (11) passes through the inner wall of the connecting frame (9) and is fixedly connected to the shaft of the drive wheel (10). The drive wheel (10) meshes with the driven wheels (12) on both sides respectively. The shafts of the two driven wheels (12) pass through the bottom of the connecting frame (9) and are fixedly connected to the shaft of the grinding disc (13).

3. The contactor rotary grinding machine according to claim 1, characterized in that, The top of the rotating disk (2) is fixedly connected to a plurality of first support plates (4) evenly distributed at equal intervals. The side wall of the first support plate (4) is fixedly connected to a placement plate (5) for placing contacts. The top of the placement plate (5) is provided with a placement groove (6) for accommodating contacts.

4. The contactor rotary grinding machine according to claim 1, characterized in that, The feeding mechanism includes a support frame (14) fixedly connected to the top of the workbench (1). A second electric telescopic rod (15) is fixedly connected to the top of the workbench (1). The telescopic end of the second electric telescopic rod (15) passes through the top of the support frame (14) and is fixedly connected to a rising plate (16). A spring (17) is fixedly connected to the top of the rising plate (16). A top plate (18) for feeding is fixedly connected to the top of the spring (17). A pull rope (19) is fixedly connected between the side wall of the top plate (18) and the side wall of the support frame (14).

5. A contactor contactor rotary grinding machine according to claim 4, characterized in that, The side wall of the workbench (1) is fixedly connected to a storage box (20) for storing the ground contacts, and the side wall of the support frame (14) is fixedly connected to a feeding plate (21) for guiding the contacts during feeding.

6. A contactor contactor rotary grinding machine according to claim 1, characterized in that, The bottom of the grinding disc (13) is concave inward, and the grinding disc (13) will come into contact with the top and outer wall of the contact during grinding.

7. A contactor contact rotary grinding machine according to claim 2, characterized in that, Limiting plates (22) are fixedly connected to both sides of the bottom of the connecting frame (9). When the grinding disc (13) is grinding, the limiting plates (22) will abut against the top of the contactor's contacts.

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