Centerless grinding supporting plate

Abstract

The utility model relates to a centerless grinding supporting plate which comprises a supporting plate base, a grinding assembly and a feeding assembly. A semi-arc-shaped base is arranged at the end of the supporting plate base, lock catch baffles are arranged at the two ends of the semi-arc-shaped base, and locking bolts are arranged on the lock catch baffles in a threaded connection mode. A round bar is rotationally placed in the semicircular arc base and is connected and limited with a lock catch baffle through a locking bolt; the grinding assembly is used for being matched with the round bar to limit the position of the bar and grinding the bar at the same time. The feeding assembly is used for continuously feeding bars. When the centerless grinding supporting plate is used, under rolling contact of the ceramic round rod, the rod advances spirally, friction is remarkably reduced, grinding efficiency is improved, it is guaranteed that the surface of the rod is smooth and free of scratches, and the problem of traditional grinding spiral threads is thoroughly solved.

Description

Technical Field

[0001] This utility model belongs to the field of grinding technology, and specifically relates to a centerless grinding support plate. Background Technology

[0002] Centerless grinding, used for grinding high-precision slender bars, has been widely applied in recent years. With the increasing precision of centerless grinding equipment, the accuracy requirements for bar diameter tolerances are becoming increasingly stringent. This is thanks to the precise control of the grinding equipment's control and cutting compensation precision, as well as the equipment's inherent stability. In the centerless grinding process, the material rotates at high speed between the guide wheel and the grinding wheel and is cut by the grinding wheel. The bar's forward movement is supported by a support plate. Due to the bar's own weight, during high-speed rotation, the bar and the carbon steel support plate experience spiral sliding contact and friction, resulting in spiral scratches on the bar's surface at the grinding exit end after passing through the support plate. The scratches are approximately 0.001–0.005 mm deep, commonly referred to as "spiral marks."

[0003] These "spiral marks" can only be removed by applying pressure with a flexible polishing wheel for dimensional polishing. However, flexible polishing can increase the dimensional tolerances of the ground bar and disrupt its consistency. Therefore, to control the dimensional accuracy of the bar, tooling design must be optimized during the grinding process to avoid creating surface spiral marks during grinding.

[0004] Therefore, there is an urgent need for a centerless grinding plate to overcome the above-mentioned technical defects. Summary of the Invention

[0005] Therefore, based on the characteristics of grinding processes, the present invention aims to provide an improved design of a centerless grinding tray, which not only avoids surface spiral marks caused by grinding, but also improves the surface finish and consistency of the ground bar.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a centerless grinding pallet, comprising: a pallet base, a grinding assembly, and a feeding assembly;

[0007] A semi-circular arc base is provided at the end of the pallet base, and a locking baffle is provided at both ends of the semi-circular arc base. A locking bolt is threadedly connected to the locking baffle. A round bar is rotatably placed inside the semi-circular arc base, and the round bar is limited by the locking bolt and the locking baffle.

[0008] The grinding assembly is used to position the bar in conjunction with the round bar, and to perform grinding operations on the bar; the feeding assembly is used to continuously feed the bar.

[0009] As a further improvement of this utility model, the grinding assembly includes an adjustment plate, a drive motor, a grinding wheel, and a guide wheel;

[0010] One end of the adjustment plate is fixedly mounted on the support plate base, and the other end is slidably engaged with the drive motor. The output end of the drive motor is coaxially fixed with the grinding wheel, which is used to perform grinding operations on the bar.

[0011] The rotation adjustment of the guide wheel is set on the adjustment plate.

[0012] As a further improvement of this utility model, the relative distance between the grinding wheel and the guide wheel is adjusted, and the position of the rod is defined in conjunction with the round bar.

[0013] As a further improvement of this utility model, the round rod is made of ceramic material and has self-lubricating properties.

[0014] As a further improvement of this utility model, the pallet base is made of carbon steel.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Breaking away from the traditional integral wedge-shaped support structure of centerless grinding, a support structure combining a semi-circular base and a ceramic rod is adopted. With this structure, during the grinding process, the bar being ground makes rolling contact with the ceramic rod and advances spirally, reducing friction during the rolling contact process. The ceramic rod experiences almost no wear. As the bar passes through the ceramic rod support, its surface does not develop frictional scratches with the ceramic rod, avoiding the grinding spiral marks caused by sliding friction with the support at the exit end after grinding.

[0017] 2. The ceramic material serves as the carrier in contact with the bar being ground. Utilizing the high wear resistance and self-lubricating properties of the ceramic material, the bar being ground rolls and moves forward in a spiral motion on the ceramic round bar, smoothly and without vibration. This ensures the surface finish and consistency of the bar, as well as the dimensional accuracy of the entire bar, preventing the end dimensions from being too small.

[0018] 3. The ceramic material has extremely high wear resistance. As a consumable, the ceramic round bar is not easily worn out and the replacement frequency is much less than that of the traditional carbon steel base. There is no need to frequently adjust the support plate and repair the worn surface of the support plate, which facilitates the convenience and practicality of production operation and greatly improves the grinding production efficiency. Attached Figure Description

[0019] Figure 1 A front view schematic diagram of a centerless grinding plate;

[0020] Figure 2 This is a side view of the connection of a centerless grinding pallet base.

[0021] The components include: 1. pallet base; 2. round bar; 3. grinding wheel; 4. guide wheel; 5. bar stock; 6. locking baffle; and 7. locking bolt. Detailed Implementation

[0022] See Figures 1 to 2 As shown, a centerless grinding pallet is characterized by comprising: a pallet base 1, a grinding assembly, and a feeding assembly;

[0023] A semi-circular arc base is provided at the end of the pallet base 1. A locking baffle 6 is provided at both ends of the semi-circular arc base. A locking bolt 7 is threadedly connected to the locking baffle 6. A round bar 2 is rotatably placed inside the semi-circular arc base. The round bar 2 is connected and limited by the locking bolt 7 and the locking baffle 6.

[0024] The grinding assembly is used to position the rod 5 in conjunction with the round bar 2, and to perform grinding operations on the rod 5; the feeding assembly is used to continuously feed the rod 5.

[0025] By optimizing the synergy between the grinding and feeding components, and in conjunction with the round bar 2, the generation of surface spiral marks during the grinding process is effectively avoided, thereby improving the dimensional accuracy and surface finish of the bar and ensuring product consistency.

[0026] In a preferred embodiment, the grinding assembly includes an adjustment plate, a drive motor, a grinding wheel 3, and a guide wheel 4;

[0027] One end of the adjustment plate is fixedly mounted on the support plate base 1, and the other end is slidably engaged with the drive motor. The output end of the drive motor is coaxially fixed with the grinding wheel 3, which is used to perform grinding operations on the bar 5.

[0028] The rotation adjustment of the guide wheel 4 is set on the adjustment plate.

[0029] like Figure 1 - Figure 2 As shown, this utility model also includes: adjusting the relative distance between the grinding wheel 3 and the guide wheel 4, and cooperating with the round bar 2 to limit the position of the rod 5; the round bar 2 is made of ceramic material and has self-lubricating properties; the support plate base 1 is made of carbon steel.

[0030] By precisely adjusting the distance between the grinding wheel 3 and the guide wheel 4, and in conjunction with the round bar 2, the bar 5 remains stable during the grinding process. The self-lubricating properties of the ceramic round bar 2 reduce friction and improve grinding efficiency. The carbon steel support plate 1 provides robust support, ensuring a smooth and efficient grinding process, ultimately achieving a high-precision centerless grinding effect.

[0031] In practical applications, the distance between the grinding wheel 3 and the guide wheel 4, as well as the height of the round bar 2, are adjusted according to the size and grinding amount of the workpiece 5 to be ground. The workpiece 5 is fed from one end into the space between the grinding wheel 3 and the guide wheel 4 through the feeding assembly. After contacting the grinding wheel 3, the workpiece 5 rotates at high speed and moves forward in a spiral motion, achieving centerless grinding. The bottom support of the workpiece 5 rolls in contact with the round bar 2 and moves forward in a spiral motion at the exit end until the entire workpiece 5 has traveled completely and is no longer in contact with the round bar 2.

[0032] Before the bar 5 leaves the cutting stage of the grinding wheel 3, it continuously rolls and contacts the ceramic round bar 2 in a spiral motion. This is fundamentally different from the traditional method where the flat surface of a fixed wedge support plate directly contacts the bar, resulting in sliding friction. Through this rolling contact between the bar 5 and the round bar 2, friction is significantly reduced, preventing surface scratches and heat buildup, thus further improving grinding quality and efficiency. The self-lubricating properties of the ceramic round bar 2 not only extend the equipment's service life but also ensure the stability and consistency of the bar 5 during the grinding process, ultimately achieving a high-precision, high-surface-finish grinding effect.

[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be primarily defined by the scope of the claims.

Claims

1. A centerless grinding plate, characterized in that: include: Pallet base (1), grinding assembly, feeding assembly; A semi-circular arc base is provided at the end of the pallet base (1), and a locking baffle (6) is provided at both ends of the semi-circular arc base. A locking bolt (7) is threadedly connected to the locking baffle (6). A round rod (2) is rotatably placed inside the semi-circular arc base. The round rod (2) is connected and limited by the locking bolt (7) and the locking baffle (6). The grinding assembly is used to position the rod (5) in conjunction with the round bar (2) and to perform grinding operations on the rod (5); the feeding assembly is used to continuously feed the rod (5).

2. The centerless grinding plate according to claim 1, characterized in that: The grinding assembly includes an adjustment plate, a drive motor, a grinding wheel (3), and a guide wheel (4). One end of the adjustment plate is fixedly mounted on the base plate (1), and the other end is slidably connected to the drive motor. The output end of the drive motor is coaxially fixedly mounted with the grinding wheel (3), which is used to grind the bar (5). The rotation adjustment of the guide wheel (4) is set on the adjustment plate.

3. A centerless grinding support plate according to claim 2, characterized in that: Adjust the relative distance between the grinding wheel (3) and the guide wheel (4), and cooperate with the round bar (2) to define the position of the bar (5).

4. A centerless grinding support plate according to claim 1, characterized in that: The round rod (2) is made of ceramic material and has self-lubricating properties.

5. A centerless grinding support plate according to claim 1, characterized in that: The pallet base (1) is made of carbon steel.

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