Bearing inner diameter grinding and material taking device with sliding type limiting block
By designing a bearing inner diameter grinding and material handling device with a separable sliding limit block, the problem of poor versatility of existing material handling plates was solved, achieving adaptability to bearings of different specifications and cost savings.
Patent Information
- Application Number
- CN202511318167.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2025-11-14
AI Technical Summary
The existing material handling plate is a one-piece structure, which requires special design when the inner diameter, outer diameter, and width of the bearing change, resulting in poor versatility.
The design incorporates a bearing inner diameter grinding and material handling device with a sliding limit block. The material handling plate has a separable structure, and the limit block can be adjusted independently. It is fixed in the groove by hexagonal bolts to accommodate bearings of different specifications.
It expands the application range of the material handling plate, reduces tooling procurement costs and changeover time, and saves on tooling types and management costs.
Smart Images
Figure CN120941231A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of material handling devices for cylindrical grinding machines, and more specifically to a material handling device for grinding the inner diameter of bearings with a sliding limit block. Background Technology
[0002] Currently, the internal grinding machine's material handling device consists of a robotic arm and a material handling plate. It is responsible for transporting the bearing from the feed channel to the grinding position during the grinding process and returning the bearing to the unfeed channel after grinding. Before grinding, the robotic arm moves clockwise to move the bearing to the grinding position. The material handling plate has a hole in its center, approximately 2mm larger in diameter than the bearing's inner diameter. During grinding, the grinding wheel passes through the hole and feeds to the tool setting point for grinding. After grinding, the grinding wheel retracts to the starting position, and the robotic arm then moves counterclockwise until the bearing is blocked by a stop block and falls to the unfeed channel under gravity, thus completing one processing cycle. Two protruding rectangular structures, one above and one below the center hole of the material handling plate, serve as limiters. The gap between the two rectangular structures is 2-3mm larger than the bearing's outer diameter, and the height of the protruding rectangular structures should ideally be between 1 / 2 and 1 / 3 of the bearing's width.
[0003] Therefore, in order to ensure that there is no jamming during the loading and unloading of bearings, the gap between the rectangular structures and the protrusion height must be within a suitable range. However, the material picker plate itself is a whole, and when the inner diameter, outer diameter and width of the bearing change, a specially designed material picker plate is required, which makes the material picker plate less versatile. Summary of the Invention
[0004] To address the problem that existing material handling plates are integral structures, requiring specialized material handling plates when the bearing's inner diameter, outer diameter, and width change, resulting in poor versatility, this invention provides a bearing inner diameter grinding material handling device with a sliding limit block.
[0005] The technical solution of this invention is:
[0006] A bearing inner diameter grinding and material handling device with a sliding limit block, the bearing inner diameter grinding and material handling device with a sliding limit block includes a material handling plate, a limit block, a bearing inner ring, and a groove.
[0007] The material taking plate has a central hole, and grooves are respectively provided above and below the central hole. The bottom of the limiting block is inserted into the two grooves in sequence, and the two limiting blocks slide along the direction of the grooves to adjust the gap between the limiting block and the outer diameter of the bearing.
[0008] The bearing inner ring is placed on the grooved side of the material picker plate, and the bearing inner ring is aligned with the center hole of the material picker plate.
[0009] Furthermore, the groove also includes a strip-shaped sliding hole and a hexagonal bolt;
[0010] The strip-shaped sliding hole is arranged along the groove direction, and the hexagonal bolt passes through the strip-shaped sliding hole to fix the limiting block into the groove.
[0011] Furthermore, the limiting block is a rectangular structure, and the width of the limiting block matches the width of the groove. When the limiting block is slid into the groove, the groove surface provides vertical support and positioning for the limiting block, ensuring that the limiting block will not loosen or fall off in the vertical direction when it is installed in the groove.
[0012] Furthermore, the limiting block is provided with an insertion hole, the hexagonal bolt passes through the insertion hole of the limiting block, and the limiting block is fixed to the strip-shaped sliding hole of the groove by the hexagonal bolt, so that the assembled material picking plate is installed on the robotic arm;
[0013] The maximum sliding distance of the limiting block is the length at the strip-shaped sliding hole.
[0014] Furthermore, the front side of the material receiving plate is provided with a circular step or recess, which is the side for installing the bearing. The inner ring of the bearing is placed on the step or recess, and its inner diameter is aligned with the center hole of the material receiving plate.
[0015] Furthermore, the diameter of the central hole of the material taking plate is 2mm larger than the inner diameter of the bearing inner ring, and this gap allows the bearing to be fitted onto the material taking plate.
[0016] Furthermore, after the limiting block is fixed on the material taking plate, the limiting block clamps and constrains the outer ring of the bearing from the left and right sides or the top and bottom sides.
[0017] Furthermore, the material picking plate is provided with a set of pin holes, which correspond to the positioning pins on the robotic arm. During installation, the pin holes of the material picking plate are first aligned with the positioning pins on the robotic arm to achieve preliminary precise positioning.
[0018] Furthermore, the two limiting blocks are placed sequentially into the grooves above and below the central hole, and the gap between the limiting blocks and the outer diameter of the bearing is adjusted to 1-2 mm.
[0019] Furthermore, the hex bolts are M4 internal hex bolts.
[0020] Compared with the prior art, the present invention has the following advantages:
[0021] This invention is applicable to the loading and unloading of bearing inner rings during the inner diameter grinding process, and features an adjustable slider to meet the material handling requirements of bearings of different specifications.
[0022] This invention designs the material handling plate as a separable structure and the rectangular structure used for limiting is designed as an independently adjustable module. When the inner diameter of the bearing is the same but the outer diameter and width are different, only the corresponding limiting block needs to be replaced, saving changeover time. It also greatly reduces the types of material handling tools required, saving tooling manufacturing costs and subsequent management costs.
[0023] The modular design of this invention greatly increases the application range of the material picking plate, thereby reducing the types of material picking plates. According to statistics, the number of types has been reduced from 42 to 7 types of material picking plates plus 4 types of limit blocks, which reduces the tooling procurement cost by 75%; and reduces the changeover time caused by replacing material picking plates by an average of about 30%.
[0024] This invention allows a single material handling plate to accommodate bearings of various outer diameters and widths by replacing different sized limit blocks, eliminating the need to design a dedicated material handling plate for each bearing. When changing bearing models, simply loosen the bolts, slide the plate, and replace the limit block, significantly reducing production preparation time. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of the present invention;
[0026] Figure 2 yes Figure 1 The rear view in the middle;
[0027] Figure 3 This is a schematic diagram of the material handling plate;
[0028] Figure 4 This is a schematic diagram of the limit block structure;
[0029] Figure 5 This is a schematic diagram of the original material handling plate;
[0030] In the diagram: 2-1, material taking plate; 2-2, limiting block; 2-3, bearing inner ring; 2-4, groove; 2-5, strip-shaped sliding hole; 3-1, hexagonal bolt; 3-2, center hole. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0032] Specific implementation method one: Combining Figure 1 — Figure 5 This embodiment describes a bearing inner diameter grinding and material handling device with a sliding limit block. The bearing inner diameter grinding and material handling device with a sliding limit block includes a material handling plate 2-1, a limit block 2-2, a bearing inner ring 2-3, and a groove 2-4.
[0033] The material taking plate 2-1 has a central hole 3-2. The material taking plate 2-1 has grooves 2-4 directly above and below the central hole 3-2. The bottom of the limiting block 2-2 is inserted into the two grooves 2-4 in sequence, and the two limiting blocks 2-2 slide along the direction of the grooves 2-4 to adjust the gap between the limiting block 2-2 and the outer diameter of the bearing.
[0034] The bearing inner ring 2-3 is placed on the side of the material taking plate 2-1 with the groove 2-4, and the bearing inner ring 2-3 is aligned with the center hole 3-2 of the material taking plate.
[0035] The material receiving plate 2-1 has a central hole 3-2, with a groove directly above and below the central hole 3-2. Two limiting blocks can slide along the grooves 2-4, thereby adjusting the clearance between them and the outer ring of the bearing. The inner ring of the bearing 2-3 is placed on the grooved side of the material receiving plate 2-1, ensuring that its center is aligned with the central hole of the material receiving plate 2-1. This is the basic assembly relationship of the entire device.
[0036] Select a suitable material handling plate 2-1 according to the bearing inner diameter, and select a suitable limiting block 2-2 according to the bearing width; place the two limiting blocks 2-2 into the grooves above and below the center hole 3-2 in sequence, adjust the gap between the limiting block 2-2 and the bearing outer diameter to about 1-2mm, then fix the limiting block 2-2 with M4 hex bolts 3-1, and finally install the assembled material handling plate on the robotic arm.
[0037] Specific Implementation Method Two: Combining Figure 1 — Figure 5 This embodiment describes a bearing inner diameter grinding and material handling device with a sliding limit block. The groove 2-4 further includes a strip-shaped sliding hole 2-5 and a hexagonal bolt 3-1.
[0038] The strip-shaped sliding hole 2-5 is arranged along the direction of the groove 2-4, and the hexagonal bolt 3-1 passes through the strip-shaped sliding hole 2-5, and the limiting block 2-2 is fixed to the groove 2-4 by the hexagonal bolt 3-1.
[0039] A strip-shaped sliding hole 2-5 is formed at the bottom of the groove 2-4. A hex bolt 3-1 passes through this sliding hole and the hole on the limiting block 2-2, suspending and fixing the limiting block 2-2 in the groove 2-4. Loosening the bolt allows the limiting block 2-2 to slide along the strip-shaped sliding hole 2-5; tightening the bolt fixes the limiting block 2-2 in place.
[0040] Specific implementation method three: Combining Figure 1 — Figure 5This embodiment describes a bearing inner diameter grinding and material handling device with a sliding limiting block. The limiting block 2-2 is generally rectangular, and the width of the limiting block 2-2 matches the groove width of the groove 2-4. The limiting block 2-2 is slid into the groove 2-4, and the groove surface of the groove 2-4 provides vertical support and positioning for the limiting block 2-2, ensuring that the limiting block 2-2 will not loosen or fall off in the vertical direction when installed in the groove 2-4.
[0041] The above-mentioned fit ensures that the limiting block 2-2 can only slide in one direction within the groove 2-4, and will not loosen or fall off in the direction perpendicular to the material picking plate, thus providing stable support and positioning for the limiting block.
[0042] Specific implementation method four: Combination Figure 1 — Figure 5 This embodiment describes a bearing inner diameter grinding and material handling device with a sliding limit block. The limit block 2-2 has an insertion hole, and the hexagonal bolt 3-1 passes through the insertion hole of the limit block 2-2. The limit block 2-2 is fixed to the strip-shaped sliding hole 2-5 of the groove 2-4 by the hexagonal bolt 3-1. The assembled material handling plate 2-1 is then installed on the robotic arm.
[0043] The maximum sliding distance of the limiting block 2-2 is the length of the strip-shaped sliding hole 2-5.
[0044] First, pre-fix the limit block 2-2 to the strip-shaped sliding hole 2-5 with hex bolts 3-1. After adjusting the position, tighten the hex bolts 3-1. Finally, install the assembled material handling plate 2-1 onto the robotic arm.
[0045] Specific Implementation Method Five: Combining Figure 1 — Figure 5 This embodiment describes a bearing inner diameter grinding and material handling device with a sliding limit block. The front of the material handling plate 2-1 is provided with a circular step or recess, which is the side where the bearing is installed. The bearing inner ring 2-3 is placed on the step or recess, and its inner diameter is aligned with the center hole 3-2 of the material handling plate 2-1.
[0046] The front of the take-up plate 2-1 is provided with a circular step or recessed platform with a diameter that matches the outer diameter of the bearing inner ring. This is used to quickly and accurately position the bearing radially, ensuring that the bearing can sit stably on the take-up plate 2-1 and that its center can be easily aligned with the center hole of the take-up plate.
[0047] Specific Implementation Method Six: Combination Figure 1 — Figure 5This embodiment describes a bearing inner diameter grinding and material taking device with a sliding limit block. The diameter of the central hole 3-2 of the taking plate 2-1 is 2mm larger than the inner diameter of the bearing inner ring 2-3. This gap allows the bearing to be fitted onto the taking plate 2-1.
[0048] This clearance is to allow the bearing to fit smoothly onto the step of the feed plate, and also to provide the necessary space for the grinding wheel to feed during grinding.
[0049] Specific implementation method seven: Combining Figure 1 — Figure 5 This embodiment describes a bearing inner diameter grinding and material handling device with a sliding limiting block. After the limiting block 2-2 is fixed on the material handling plate 2-1, the limiting block 2-2 clamps and constrains the outer ring of the bearing from the left and right sides or the top and bottom sides.
[0050] This clamping mechanism ensures that the bearing will not wobble or deviate from the center throughout the entire process of the robotic arm driving the bearing's movement, thus guaranteeing the precision of the grinding process.
[0051] Specific implementation method eight: Combination Figure 1 — Figure 5 This embodiment describes a bearing inner diameter grinding and material handling device with a sliding limit block. The material handling plate 2-1 has a set of pin holes, which correspond to the positioning pins on the robotic arm. During installation, the pin holes of the material handling plate 2-1 are first aligned with the positioning pins on the robotic arm to achieve preliminary precise positioning.
[0052] During installation, first align the pin holes of the material handling plate 2-1 with the positioning pins of the robotic arm to achieve preliminary precise positioning, and then tighten them with bolts or other fasteners. This greatly improves installation efficiency and repeatability.
[0053] Specific Implementation Method Nine: Combining Figure 1 — Figure 5 This embodiment describes a bearing inner diameter grinding and material handling device with sliding limit blocks. Two limit blocks 2-2 are sequentially placed in the grooves 2-4 above and below the central hole 3-2, and the gap between the limit blocks 2-2 and the bearing outer diameter is adjusted to 1-2 mm.
[0054] A gap of about 1 to 2 mm can ensure that the bearing is stably constrained and can also prevent the bearing from getting stuck during loading and unloading due to too small a gap.
[0055] Specific Implementation Method Ten: Combining Figure 1 — Figure 5 This embodiment describes a bearing inner diameter grinding and material handling device with a sliding limit block, wherein the hexagonal bolt 3-1 is an M4 internal hexagonal bolt.
[0056] (1) Initial adjustment and fixation:
[0057] Select a suitable material take-up plate 2-1 (with a matching center hole) based on the inner diameter of the bearing to be processed.
[0058] Select a limit block 2-2 of appropriate height based on the width of the bearing;
[0059] Place the bearing inner ring 2-3 on the step or recess of the material taking plate 2-1;
[0060] Place the two limiting blocks 2-2 into the groove 2-4 and slide them to achieve the optimal gap of 1-2mm between them and the outer ring of the bearing.
[0061] Tighten M4 socket head cap screws 3-1 to secure the limit block 2-2. The material handling device is now ready.
[0062] In the diagram: 2-1, material taking plate; 2-2, limiting block; 2-3, bearing inner ring; 2-4, groove; 2-5, strip-shaped sliding hole; 3-1, hexagonal bolt; 3-2, center hole.
[0063] (2) Feeding and grinding:
[0064] The robotic arm drives the entire material handling device to move along a clockwise arc, transporting the bearing from the loading channel to the grinding position;
[0065] At this point, the bearing is precisely positioned at the center of the material receiving plate 2-1;
[0066] The grinding wheel of the grinding machine passes through the center hole 3-2 of the take-up plate 2-1 and is fed to the tool setting point to grind the inner diameter of the bearing inner ring.
[0067] (3) Material feeding and circulation:
[0068] After grinding is completed, the grinding wheel returns to its starting position;
[0069] The robotic arm then moves along a counter-clockwise arc, transporting the bearing back to the unloading channel;
[0070] When the bearing moves to the discharge channel position, it will be blocked by a fixed stop block;
[0071] Due to the loss of support, the bearing slid off the material pick-up plate 2-1 under the action of gravity and fell into the discharge channel;
[0072] Once a processing cycle is complete, the robotic arm returns to the loading chute, ready for the next material retrieval.
[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present invention, based on the technical essence of the present invention and within the spirit and principles of the present invention, shall still fall within the protection scope of the present invention.
Claims
1. A bearing inner diameter grinding and material handling device with a sliding limiting block, characterized in that, The bearing inner diameter grinding and material taking device with sliding limit block includes a material taking plate (2-1), a limit block (2-2), a bearing inner ring (2-3), and a groove (2-4). The material taking plate (2-1) has a central hole (3-2). The material taking plate (2-1) has grooves (2-4) directly above and below its central hole (3-2). The bottom of the limiting block (2-2) is inserted into the two grooves (2-4) in sequence, and the two limiting blocks (2-2) slide along the direction of the grooves (2-4) to adjust the gap between the limiting block (2-2) and the outer diameter of the bearing. The bearing inner ring (2-3) is placed on the side of the material taking plate (2-1) with the groove (2-4), and the bearing inner ring (2-3) is aligned with the center hole (3-2) of the material taking plate.
2. The bearing inner diameter grinding and material handling device with sliding limiting block according to claim 1, characterized in that, The groove (2-4) also includes a strip-shaped sliding hole (2-5) and a hexagonal bolt (3-1). The strip-shaped sliding hole (2-5) is arranged along the direction of the groove (2-4), and the hexagonal bolt (3-1) passes through the strip-shaped sliding hole (2-5) to fix the limiting block (2-2) into the groove (2-4).
3. The bearing inner diameter grinding and material handling device with sliding limit block according to claim 1, characterized in that, The limiting block (2-2) is a rectangular structure, and the width of the limiting block (2-2) matches the groove width of the groove (2-4). The limiting block (2-2) is slid into the groove (2-4). The groove surface of the groove (2-4) provides vertical support and positioning for the limiting block (2-2), ensuring that the limiting block (2-2) will not loosen or fall off in the vertical direction when it is installed in the groove (2-4).
4. The bearing inner diameter grinding and material handling device with sliding limit block according to claim 2, characterized in that, The limiting block (2-2) has an insertion hole, the hex bolt (3-1) passes through the insertion hole of the limiting block (2-2), and the limiting block (2-2) is fixed in the strip-shaped sliding hole (2-5) of the groove (2-4) by the hex bolt (3-1), and the assembled material picking plate (2-1) is installed on the robotic arm; The maximum sliding distance of the limiting block (2-2) is the length at the strip-shaped sliding hole (2-5).
5. The bearing inner diameter grinding and material handling device with sliding limit block according to claim 4, characterized in that, The front of the material taking plate (2-1) is provided with a circular step or recess, which is the side for installing the bearing. The bearing inner ring (2-3) is placed on the step or recess, and its inner diameter is aligned with the center hole (3-2) of the material taking plate (2-1).
6. The bearing inner diameter grinding and material handling device with sliding limiting block according to claim 5, characterized in that, The diameter of the center hole (3-2) of the material taking plate (2-1) is 2mm larger than the inner diameter of the bearing inner ring (2-3), and this gap allows the bearing to be fitted onto the material taking plate (2-1).
7. The bearing inner diameter grinding and material handling device with sliding limit block according to claim 5, characterized in that, After the limiting block (2-2) is fixed on the material taking plate (2-1), the limiting block (2-2) clamps and constrains the outer ring of the bearing from the left and right sides or the top and bottom sides.
8. The bearing inner diameter grinding and material handling device with sliding limit block according to claim 7, characterized in that, The material picking plate (2-1) has a set of pin holes. The pin holes on the material picking plate (2-1) correspond to the positioning pins on the robotic arm. During installation, the pin holes on the material picking plate (2-1) are first aligned with the positioning pins on the robotic arm to achieve preliminary accurate positioning.
9. The bearing inner diameter grinding and material handling device with sliding limit block according to claim 1, characterized in that, Two limiting blocks (2-2) are placed into the grooves (2-4) above and below the center hole (3-2) in sequence, and the gap between the limiting block (2-2) and the outer diameter of the bearing is adjusted to 1-2 mm.
10. The bearing inner diameter grinding and material handling device with sliding limiting block according to claim 2, characterized in that, The hex bolt (3-1) is an M4 internal hex bolt.