An automatic loading and unloading mechanism for a centerless grinder

Abstract

This utility model discloses an automatic loading and unloading mechanism for a centerless grinder, relating to the field of parts processing technology. The mechanism includes a conveyor belt; two sets of clamping assemblies located at both ends of the conveyor belt; wherein each clamping assembly includes two driven belts located on both sides of the conveyor belt, and the gap between the parts storage box and the two driven belts corresponds to the gap between them. This automatic loading and unloading mechanism for a centerless grinder, by using two parallel driven belts to clamp "shaft-type parts," allows them to continue moving forward after leaving the conveyor belt, while the parts storage box is placed between the two driven belts. Therefore, it effectively solves the technical problems of existing centerless grinder loading and unloading mechanisms, such as large footprint and the need for manual loading and unloading of materials, thus achieving fully automatic loading and unloading. Furthermore, since the parts storage box is located below the conveyor belt throughout the entire conveying process, it also reduces the space occupied.

Description

Technical Field

[0001] This utility model relates to the field of parts processing technology, and in particular to an automatic loading and unloading mechanism for a centerless grinder. Background Technology

[0002] In the machining of parts, after the raw materials undergo numerous processes such as turning, milling, and boring, they still require further processing by a grinding machine to determine the outer diameter and surface finish before the finished product is produced. A centerless grinder is a type of grinder that does not require workpiece axis positioning for grinding. It mainly consists of three mechanisms: a grinding wheel, an adjusting wheel, and a workpiece support. The grinding wheel performs the actual grinding work, the adjusting wheel controls the rotation of the workpiece and its feed rate, and the workpiece support supports the workpiece during grinding.

[0003] Currently, Chinese patent application number CN201520496431.1 discloses an automatic feeding device for a centerless grinder, including a support box with a sloping top surface for the material rack, a clamping platform located on the lower side of the support box and higher than the lowest end of the material rack, a feeding plate clamped between the support box and the clamping platform, and a conveying mechanism. The feeding plate reciprocates up and down, causing its top surface to move back and forth between the lowest end of the material rack and the top surface of the clamping platform. After the feeding plate is lifted, its top surface connects with the conveying mechanism through the inclined surface of the top of the clamping platform. Although it can allow parts to pass along the slope of the material rack and slide down at the lowest point from the lifting plate to the conveying mechanism for transport to the feeding port, the material rack is located on the side of the conveying device, thus occupying a certain amount of space. In addition, since the parts need to enter the conveying device from the material rack, it is necessary to manually place the parts to be processed onto the material rack, and after grinding, manually remove them from the material rack, which seriously affects the rational utilization of human resources. Figure 10 As shown, this is also the most common type of loading and unloading device for centerless grinders.

[0004] However, during the implementation of the above technical solution, at least the following technical problems were discovered:

[0005] The existing centerless grinders require a large footprint and manual loading / unloading of materials. During operation, shaft-like parts are transported to the grinding wheel via a conveyor system. To improve grinding efficiency, a loading mechanism and a unloading mechanism are typically installed at both ends of the conveyor system. The loading mechanism feeds the shaft-like parts onto the conveyor, and the unloading mechanism removes the ground parts and places them on the table. However, since both loading and unloading require placing the shaft-like parts on the worktable for the loading mechanism to grip or the unloading mechanism to place, manual handling of the materials is necessary. "Placing parts on the feed table or removing them from the polished feed table is a process that not only wastes a lot of manpower, but also requires space because the feed tables are currently placed on the side of the conveyor. In addition, since there is mutual compression between shaft parts and between the parts and the feed table, shaft parts often get stuck (i.e., the shaft parts tilt and cannot roll towards the conveyor). At this time, manual adjustment and intervention are required, which further increases the waste of human resources and affects the processing efficiency of the parts. To address this, we propose an automatic loading and unloading mechanism for centerless grinders." Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides an automatic loading and unloading mechanism for centerless grinders, which solves the technical problems of existing loading and unloading mechanisms for centerless grinders having a large footprint and requiring manual loading and unloading of raw materials.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] An automatic loading and unloading mechanism for a centerless grinder, the mechanism comprising:

[0011] Conveyor belts used for conveying shafts;

[0012] The clamping assembly has two sets, which are located at both ends of the conveyor belt. A parts storage box for storing shafts is placed below the clamping assembly, and the shafts can be raised and lowered under the drive of the lifting assembly.

[0013] The clamping assembly includes two parallel driven belts located on both sides of the conveyor belt, and the shaft inside the parts storage box corresponds to the gap between the two driven belts.

[0014] During feeding, the shaft enters between the two driven belts under the action of the lifting assembly, and then the driven belts transport the shaft onto the conveyor belt;

[0015] During unloading, the shaft is conveyed from the conveyor belt to the space between the two driven belts, and falls into the parts storage box under its own gravity.

[0016] Preferably, the clamping assembly includes a mounting frame, and two parallel drive shafts are installed inside the mounting frame, with the two drive shafts respectively close to both ends of the mounting frame;

[0017] The conveyor belt is sleeved on the drive shaft at one end of the two clamping assemblies, and one of the drive shafts is driven to rotate by a drive motor.

[0018] Preferably, each side of the mounting bracket is connected to two driven shafts, and the driven belt is sleeved between the two driven shafts on the same side;

[0019] The drive shaft has a drive shaft end that passes through the mounting bracket, and a bevel gear two is connected to one end of the drive shaft that passes through the mounting bracket. The bevel gear two meshes with the bevel gear one at the end of the driven shaft.

[0020] When the drive motor drives the drive shaft to rotate, the conveyor belt sleeved outside the drive shaft and the driven belt sleeved outside the driven shaft rotate synchronously.

[0021] Preferably, a fixed base is installed on the outside of the mounting bracket, and two corresponding upper and lower limiting plates are installed on one side of the fixed base, with the driven shaft located between the two limiting plates.

[0022] Preferably, a bracket is installed at the bottom of the clamping assembly, and a sliding groove is provided on the outside of the bracket, so that the parts storage box can be inserted into the bracket along the sliding groove;

[0023] When the parts storage box is inserted into the bracket, the gap between the shaft inside the parts storage box and the two driven belts corresponds vertically.

[0024] Preferably, the parts storage box includes a box body, and a lifting platform is embedded inside the box body. The extension plates on both sides of the lifting platform are correspondingly inserted into the sliding grooves opened on the outer wall of the box body, and the lifting platform is connected to the inner bottom surface of the box body by a spring.

[0025] The lifting assembly can move the lifting platform up and down.

[0026] Preferably, the lifting assembly includes a U-shaped movable frame. When the parts storage box is installed in the bracket, the parts storage box is located in the opening of the movable frame, and the movable frame corresponds vertically to the extension plate on the outer side of the lifting platform.

[0027] The movable frame is connected to a lead screw on the support, and the movable frame can move up and down when the lead screw rotates.

[0028] Preferably, the movable frame is equipped with pulleys at its ends, and the movable frame is in contact with the support through the pulleys. When the lifting assembly is raised or lowered, the movable frame slides in contact with the support through the pulleys.

[0029] (III) Beneficial Effects

[0030] Because two parallel driven belts clamp the shaft-like parts, allowing them to continue moving forward after leaving the conveyor belt, and the parts storage box is placed between the two driven belts, the shaft-like parts can be pushed onto the conveyor belt during loading using the clamping function of the two driven belts; conversely, the shaft-like parts can also be pushed forward from the conveyor belt using the clamping function of the two driven belts, eventually falling into the parts storage box. The lifting and lowering of the shaft-like parts is accomplished by a lifting assembly. Therefore, this effectively solves the technical problems of existing centerless grinder loading and unloading mechanisms, which require a large footprint and manual loading and unloading of raw materials, thus achieving fully automatic loading and unloading. At the same time, since the parts storage box is located below the conveyor belt throughout the entire conveying process, it also greatly reduces the space occupied. Attached Figure Description

[0031] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0032] Figure 1 This is an overall structural diagram of an embodiment of the present utility model;

[0033] Figure 2 This is a diagram showing the docking structure of the protective frame, mounting frame, and parts storage box in an embodiment of this utility model;

[0034] Figure 3 This is a partial structural diagram of the lifting assembly in an embodiment of the present utility model;

[0035] Figure 4 This is an overall structural diagram of the clamping component in an embodiment of the present utility model;

[0036] Figure 5 This is a partial structural diagram of the clamping assembly after the driven belt has been removed in an embodiment of this utility model;

[0037] Figure 6 This is a structural diagram of the transmission component in the clamping assembly in this embodiment of the utility model;

[0038] Figure 7 This is an exploded view of the parts storage box in an embodiment of this utility model;

[0039] Figure 8This is a structural diagram of the lifting platform in an embodiment of the present utility model;

[0040] Figure 9 This is a partial enlarged cross-sectional view of the shaft conveying component in an embodiment of this utility model;

[0041] Figure 10 This is a diagram of the loading and unloading structure of an existing centerless grinder.

[0042] Legend:

[0043] 11. Protective frame; 12. Conveyor belt; 13. Drive shaft;

[0044] 2. Bracket;

[0045] 3. Clamping assembly; 31. Support plate; 32. Mounting bracket; 33. Driven shaft; 34. Driven belt; 35. Side support plate; 36. Fixed seat; 37. Limiting plate; 38. Bevel gear one; 39. Bevel gear two;

[0046] 4. Parts storage box; 41. Box body; 42. Lifting platform; 43. Extension plate;

[0047] 5. Lifting assembly; 51. Movable frame; 52. Slider; 53. Lead screw; 54. Pulley;

[0048] 6. Shaft. Detailed Implementation

[0049] This application provides an automatic loading and unloading mechanism for a centerless grinder, effectively solving the technical problems of existing centerless grinder loading and unloading mechanisms, which occupy a large space and require manual loading and unloading of raw materials. In the existing centerless grinder loading and unloading mechanism, two parallel driven belts clamp the "shaft-type parts," allowing them to continue moving forward after leaving the conveyor belt. The parts storage box is placed between the two driven belts. Therefore, during loading, the "shaft-type parts" can be pushed onto the conveyor belt by the clamping function of the two driven belts; conversely, the "shaft-type parts" can also be pushed forward from the conveyor belt by the clamping function of the two driven belts, eventually falling into the parts storage box. The lifting and lowering of the "shaft-type parts" is accomplished by a lifting component, thus achieving fully automatic loading and unloading. At the same time, since the parts storage box is located below the conveyor belt throughout the entire conveying process, it can also greatly reduce the space occupied.

[0050] Market research revealed that existing feeding structures still use traditional lifting feeding devices, such as... Figure 10As shown, workers first place the parts to be processed on the worktable. Then, the telescopic rod at the front of the worktable lifts the parts on the worktable, allowing them to roll onto the conveyor belt under gravity. The conveyor belt then moves the parts toward the centerless grinder until they reach the other end of the conveyor belt. The ground parts are then removed by a stop or a robotic arm, thus completing the grinding process.

[0051] However, during this period, we found that both "loading" and "unloading" required placing the "shaft parts" on the material platform first, so that the loading mechanism could grab them or the unloading mechanism could place them. This required manual placement of the "shaft parts" on the material platform or removal of the parts from the polished material platform. This process not only wasted a lot of manpower, but also occupied a certain amount of space because the material platforms were now placed on the side of the conveyor. In addition, because there was mutual compression between the "shaft parts" and between the parts and the material platform, the "shaft parts" often got stuck (i.e., the shaft parts tilted and could not roll towards the conveyor). At this time, manual adjustment and intervention were required, which further increased the waste of human resources and affected the processing efficiency of the parts.

[0052] Example: The technical solution in this application example effectively solves the technical problems of existing centerless grinding machine loading and unloading mechanisms, which occupy a large space and require manual loading and unloading of raw materials. The overall idea is as follows:

[0053] To address the problems existing in the prior art, this utility model provides an automatic loading and unloading mechanism for a centerless grinder. This mechanism is installed at both ends of the conveyor belt 12 and is divided into "loading" and "unloading" parts. However, whether "loading" or "unloading," its main purpose is material handling. Therefore, it can be achieved by "extending" the conveyor belt 12 to allow parts to fall into the prepared parts storage box 4, or by "grabbing" parts that are not originally on the conveyor belt 12 and placing them onto the conveyor belt 12. Based on this idea, we have researched a new solution, as follows:

[0054] Two parallel driven belts 34 are installed at each end of the conveyor belt 12, and the distance between the two driven belts 34 needs to be less than the diameter of the shaft 6. This ensures that when the shaft 6 enters between the two driven belts 34, the thrust generated by the movement of the driven belts 34 can act on the shaft 6, thus pushing the shaft 6 forward. Figure 1 As shown, the two parallel driven belts 34 act like "clamps" (clamping components 3) to hold the shaft 6.

[0055] The driven belt 34 is fixed by installing a fixing seat 36 on the outside of the mounting bracket 32, which is shaped like... Figure 6As shown, the fixed base 36 has two corresponding upper and lower limiting plates 37 on one side, and the driven shaft 33 supporting the driven belt 34 is located between the two limiting plates 37. This provides support for the driven shaft 33, and when it rotates, it can stably drive the driven belt 34 to rotate.

[0056] Since both ends of the conveyor belt 12 are equipped with "claw" structures, when feeding, the shaft 6 enters between the two driven belts 34 and comes into contact with them. Then, through the friction of the driven belts 34 rotating, the shaft 6 moves towards the direction of the conveyor belt 12 until it enters the conveyor belt 12. When the shaft 6 contacts the conveyor belt 12, the conveyor belt 12 can provide enough power to drive the shaft 6 to move towards the centerless grinder, so that the shaft 6 can be ground by the centerless grinder.

[0057] Conversely, during the unloading process, the shaft 6, after being ground by the centerless grinder, moves along the conveyor belt 12 to the end of the conveyor belt 12. At this time, the shaft 6 is in contact with the driven belt 34 at the end of the conveyor belt 12 and is clamped by the two driven belts 34. Then, as the driven belts 34 rotate, the shaft 6 can be moved out of the conveyor belt 12, thus completing the unloading of the shaft 6.

[0058] To accommodate the shaft 6 and allow it to cooperate with the driven belt 34, a parts storage box 4 is installed below the driven belt 34 to hold the shaft 6. Since the shaft 6's movement is restricted on both sides by the two driven belts 34, it needs to be conveyed from below between the two driven belts 34. Figure 2 and Figure 7 As shown. Therefore, an opening is required at the top of the parts storage box 4. And the gap between the shaft 6 inside the parts storage box 4 and the two driven belts 34 corresponds.

[0059] During unloading: the parts can be conveyed to the top of the parts storage box 4 via the driven belt 34, and finally fall into the parts storage box 4 for storage under the action of its own gravity, such as... Figure 9 As shown.

[0060] During loading, in order to push the shaft 6 between the two driven belts 34, a lifting device (lifting assembly 5) is needed to push the shaft 6 stored inside the parts storage box 4 upwards, so that it enters the space between the two driven belts 34. Figure 9 As shown.

[0061] To ensure that the parts storage box 4 can move accurately below the driven belt 34, a groove is made on the bracket 2 at the bottom of the mounting frame 32. This groove needs to be positioned exactly below the driven belt 34, so that when the parts storage box 4 is inserted into the bracket 2 along the groove, the shaft 6 inside the parts storage box 4 aligns vertically with the gap between the two driven belts 34. Figure 1 and Figure 2 As shown, the mounting bracket 32 ​​is mounted on the support plate 31 on the top of the bracket 2. In order to protect the end of the drive shaft 13, a side support plate 35 is installed at each end of the drive shaft 13. The side support plate 35 is connected to the support plate 31. In this way, the drive shaft 13 is provided with support force to prevent the drive shaft 13 from shaking or moving.

[0062] Furthermore, the thrust of the lifting device can be used to maintain the distance and speed of the shaft 6's ascent and descent, thus allowing for control of the loading and unloading speed as needed. Specifically:

[0063] During loading, the lifting device pushes the uppermost shaft 6 of the parts storage box 4 upwards, positioning it between the two driven belts 34. The shafts 6 below the uppermost shaft 6 provide support, preventing it from falling and ensuring it is level with the conveyor belt 12. Therefore, when the driven belt 34 rotates, the uppermost shaft 6 can be directly pushed onto the conveyor belt 12. Figure 9 As shown in the enlarged image at the top left.

[0064] Conversely, during unloading, the lifting device is controlled to lower the uppermost shaft 6 until it is flush with the top of the conveyor belt 12. At this point, the shaft 6 on the conveyor belt 12 can be transported to the top of the parts storage box 4 via the driven belt 34, and finally fall into the parts storage box 4 for storage under the action of the parts' own gravity.

[0065] To improve resource utilization, the power supply between conveyor belt 12 and driven belt 34 is combined, enabling them to operate in tandem. This requires only one motor, as detailed below:

[0066] Movement of the conveyor belt 12: Two parallel drive shafts 13 are installed inside the mounting frame 32, with each drive shaft 13 positioned close to one end of the mounting frame 32. The two ends of the conveyor belt 12 are respectively located at the ends of the feeding mechanism (clamping assembly 3 at the front end of the conveyor belt 12) and the unloading mechanism (clamping assembly 3 at the rear end of the conveyor belt 12), with one drive shaft 13 selected at each end. The conveyor belt 12 is then fitted onto the two drive shafts 13. Thus, whenever one of the drive shafts 13 is driven to rotate by a drive motor, the entire conveyor belt 12 can rotate. A protective frame 11 protects both sides of the conveyor belt 12, and the protective frame 11 is installed between the two mounting frames 32. Figure 5 and Figure 6 As shown.

[0067] Movement of the driven belt 34: The end of the drive shaft 13 is extended, passing through the mounting bracket 32 ​​and extending outside the mounting bracket 32. A second bevel gear 39 is then connected to the end of the drive shaft 13 that passes through the mounting bracket 32. This second bevel gear 39 meshes with a first bevel gear 38 at the end of the driven shaft 33. Thus, when the conveyor belt 12 rotates, it drives the driven shaft 33 to rotate as well. Since the driven belt 34 is fitted between the two driven shafts 33 on the same side, when the drive motor drives the drive shaft 13 to rotate, the conveyor belt 12 fitted outside the drive shaft 13 and the driven belt 34 fitted outside the driven shaft 33 rotate synchronously. Figure 6 As shown, this greatly improves resource utilization efficiency. This allows one motor to drive one conveyor belt 12 and two driven belts 34 to rotate together.

[0068] To ensure stable vertical movement of the shaft 6, a lifting platform 42 is embedded inside the parts storage box 4 (a rectangular box 41). The extension plates 43 on both sides of this lifting platform 42 need to be inserted into corresponding grooves on the outer wall of the box 41. Figure 2 and Figure 7 As shown. In this way, the lifting device can drive the extension plate 43 to move the entire lifting platform 42 and the shaft 6 placed on it up and down. Therefore, the lifting platform 42 can be moved up and down from the outside of the parts storage box 4, without the need to install the lifting device inside the parts storage box 4. In order to play a buffering role, a spring connection is also installed between the lifting platform 42 and the inner bottom surface of the parts storage box 4. In this way, when the shaft 6 falls onto the lifting platform 42, the lifting platform 42 can be buffered by the action of the spring. Of course, the height of the lifting platform 42 can also be adjusted by the lifting device to meet the required height.

[0069] The structure of the lifting equipment is as follows:

[0070] A U-shaped movable frame 51 has an opening that aligns with the opening of the slide groove in the support 2, and the width of the opening of the movable frame 51 matches the width of the parts storage box 4. This ensures that when the parts storage box 4 is installed in the support 2, it is positioned precisely within the opening of the movable frame 51, with the movable frame 51 tightly fitted against the outer wall of the parts storage box 4. At this point, the movable frame 51 corresponds vertically to the extension plate 43 on the outer side of the lifting platform 42. Thus, the vertical movement of the movable frame 51 simultaneously drives the lifting platform 42 to move as well.

[0071] A vertically arranged lead screw 53 is mounted on the bracket 2, and the slider 52 on the movable frame 51 is threadedly connected to the lead screw 53. Therefore, when the lead screw 53 rotates, it can drive the movable frame 51 to move up and down, and then drive the lifting platform 42 to move up and down.

[0072] The pulley 54 is installed on the movable frame 51 to reduce the friction of the movable frame 51 sliding up and down. The pulley 54 is installed at the position where the movable frame 51 contacts the support 2. In this way, when the lifting assembly 5 is raised and lowered, the movable frame 51 slides in contact with the support 2 through the pulley 54, which facilitates the up and down movement of the movable frame 51 and avoids wear.

[0073] In the specific implementation process, the parts storage box 4 containing the shaft 6 is pushed into the groove at the bottom of the bracket 2, such as... Figure 1 As shown, since the slide groove is located directly below the driven belt 34, when the parts storage box 4 is inserted into the bracket 2 along the slide groove, the shaft 6 inside the parts storage box 4 can align vertically with the gap between the two driven belts 34, as shown. Figure 1 and Figure 2 As shown, since the opening of the movable frame 51 is aligned with the opening of the slide groove in the bracket 2, and the width of the opening of the movable frame 51 is the same as the width of the parts storage box 4, when the parts storage box 4 is installed in the bracket 2, the parts storage box 4 is exactly located in the opening of the movable frame 51, and the movable frame 51 is tightly fitted to the outer wall of the parts storage box 4. At this time, the movable frame 51 corresponds vertically to the extension plate 43 on the outer side of the lifting platform 42, as shown. Figure 1 As shown.

[0074] Start the motor outside the bracket 2 to drive the lead screw 53 to rotate. Since the slider 52 on the movable frame 51 is threadedly connected to the lead screw 53, the movable frame 51 can be moved up and down when the lead screw 53 rotates, and then the lifting platform 42 can be moved up and down.

[0075] When the lifting platform 42 rises, the uppermost shaft 6 in the parts storage box 4 is pushed upwards, allowing it to enter between the two driven belts 34. The shaft 6 below the uppermost shaft 6 provides support, preventing the uppermost shaft 6 from falling and ensuring it is level with the conveyor belt 12. Therefore, when the driven belt 34 rotates, the uppermost shaft 6 can be directly pushed onto the conveyor belt 12. Figure 9 As shown in the enlarged image at the top left.

[0076] After grinding, the movable frame 51 at the end of the conveyor belt 12 is controlled to lower the uppermost shaft 6 of the parts storage box 4 until it is flush with the top of the conveyor belt 12. At this point, the shaft 6 on the conveyor belt 12 can be transported to the top of the parts storage box 4 via the driven belt 34, and finally, under the action of its own gravity, it falls into the parts storage box 4 for storage. Figure 9 As shown in the enlarged view at the bottom right, when the parts storage box 4 is full, pull the parts storage box 4 out from under the bracket 2, and then install the empty parts storage box 4 onto the bracket 2.

[0077] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A centerless grinding machine automatic feeding and discharging mechanism, characterized in that, The loading and unloading mechanism includes: Conveyor belt (12) for conveying shaft (6); The clamping assembly (3) is provided in two sets and is located at both ends of the conveyor belt (12). A parts storage box (4) for storing the shaft (6) is placed below the clamping assembly (3), and the shaft (6) can be lifted and lowered under the drive of the lifting assembly (5). The clamping assembly (3) includes two parallel driven belts (34) located on both sides of the conveyor belt (12), and the gap between the shaft (6) inside the parts storage box (4) and the two driven belts (34) corresponds to the gap between them. During feeding, the shaft (6) enters between the two driven belts (34) under the action of the lifting assembly (5), and then the driven belts (34) transport the shaft (6) onto the conveyor belt (12); During unloading, the shaft (6) is conveyed from the conveyor belt (12) to the two driven belts (34), and falls into the parts storage box (4) under its own gravity.

2. The automatic loading and unloading mechanism of a centerless grinding machine according to claim 1, characterized in that: The clamping assembly (3) includes a mounting bracket (32), and two parallel drive shafts (13) are installed inside the mounting bracket (32), with the two drive shafts (13) respectively close to both ends of the mounting bracket (32); The conveyor belt (12) is sleeved on the drive shaft (13) at one end of the two clamping assemblies (3), and one of the drive shafts (13) is driven to rotate by a drive motor.

3. The automatic loading and unloading mechanism of a centerless grinding machine according to claim 2, characterized in that: The mounting bracket (32) has two driven shafts (33) connected to each side, and the driven belt (34) is sleeved between the two driven shafts (33) on the same side; The end of the drive shaft (13) passes through the mounting bracket (32), and a bevel gear two (39) is connected to one end of the drive shaft (32). The bevel gear two (39) meshes with the bevel gear one (38) at the end of the driven shaft (33). When the drive motor drives the drive shaft (13) to rotate, the conveyor belt (12) sleeved on the outside of the drive shaft (13) and the driven belt (34) sleeved on the outside of the driven shaft (33) rotate synchronously.

4. The automatic loading and unloading mechanism of a centerless grinding machine according to claim 3, characterized in that: The mounting bracket (32) is externally mounted with a fixed seat (36), and two corresponding upper and lower limiting plates (37) are mounted on one side of the fixed seat (36), and the driven shaft (33) is located between the two limiting plates (37).

5. The automatic loading and unloading mechanism of a centerless grinding machine according to claim 3, characterized in that: The clamping assembly (3) has a bracket (2) installed at its bottom, and the bracket (2) has a sliding groove on its outside. The parts storage box (4) can be inserted into the bracket (2) along the sliding groove. When the parts storage box (4) is inserted into the bracket (2), the gap between the shaft (6) inside the parts storage box (4) and the two driven belts (34) corresponds vertically.

6. The automatic loading and unloading mechanism for a centerless grinding machine as described in claim 5, characterized in that: The parts storage box (4) includes a box body (41), and a lifting platform (42) is embedded inside the box body (41). The extension plates (43) on both sides of the lifting platform (42) are correspondingly inserted into the sliding grooves opened on the outer wall of the box body (41), and the lifting platform (42) and the inner bottom surface of the box body (41) are connected by a spring. The lifting component (5) can drive the lifting platform (42) to move up and down.

7. The automatic loading and unloading mechanism for a centerless grinding machine as described in claim 6, characterized in that: The lifting assembly (5) includes a U-shaped movable frame (51). When the parts storage box (4) is installed in the bracket (2), the parts storage box (4) is located in the opening of the movable frame (51), and the movable frame (51) corresponds vertically to the extension plate (43) on the outside of the lifting platform (42). The movable frame (51) is connected to the lead screw (53) on the support (2), and when the lead screw (53) rotates, it can drive the movable frame (51) to move up and down.

8. The automatic loading and unloading mechanism for a centerless grinding machine as described in claim 7, characterized in that: The movable frame (51) is equipped with a pulley (54) at its end, and the movable frame (51) is in contact with the support (2) through the pulley (54). When the lifting assembly (5) is raised or lowered, the movable frame (51) slides in contact with the support (2) through the pulley (54).

Images