A clamping-free bearing ring machining equipment

Abstract

The utility model discloses a kind of clamping-free bearing ring machining equipment, including machine table, the positioning assembly for positioning bearing ring is provided on machine table, the conveying channel for conveying bearing ring for positioning assembly, and the grinding assembly for grinding channel;Positioning assembly, including positioning main body, the receiving plate and positioning plate of setting on positioning main body, the rotating disc group of driving bearing ring rotation, the positioning rotating unit for positioning bearing ring, and the pusher unit for promoting bearing ring movement, the receiving plate of bearing ring is pushed to the positioning area of pusher unit, the action end of positioning rotating unit promotes the bearing ring on positioning area and is abutted to positioning plate, to make bearing ring be fixed between positioning rotating unit and positioning plate, and the rotating disc group is attached bearing ring, and drives its rotation;Grinding assembly, including grinding head, the drive host for clamping and driving grinding head rotation, and the horizontal movement module of driving drive host movement.

Description

Technical Field

[0001] This utility model relates to the field of bearing processing technology, specifically to a clamp-free bearing ring processing equipment. Background Technology

[0002] In the existing bearing manufacturing process, especially for the outer ring of small and medium diameter bearings, the grinding of its raceway is one of the key processes to ensure the bearing's accuracy, life and performance. This process is generally carried out using CNC grinding machines.

[0003] In the existing technology, when grinding the grooves of small and medium diameter bearing outer rings, the main method is to use a clamping method to fix the outer diameter. The outer cylindrical surface of the outer ring is directly clamped by the machine tool fixture (such as spring collet, diaphragm chuck, etc.) to position and fasten it, and then the grinding wheel grinds the grooves of the ring.

[0004] However, this "clamping outer diameter" processing method has inherent technical defects, which seriously restrict the further improvement of production efficiency and product quality. The specific problems are as follows: 1. Surface damage to the outer ring: Because the fixture needs to apply sufficient clamping force to prevent the ring from rotating or shifting during processing, its hard claws (or clamping surfaces) will inevitably leave clamping marks on the outer diameter surface of the ring, such as indentations, scratches, or even microscopic deformations. 2. Secondary processing leads to low production efficiency: To solve the above-mentioned surface damage problem, the current process route has to add a "flat external grinding" or "finishing" process after groove grinding and ultra-precision machining. That is, the outer ring that has completed groove machining is transferred to an external cylindrical grinding machine or a centerless grinding machine to perform micro-grinding on its outer diameter to eliminate clamping marks, which seriously affects the low production efficiency; 3. Increased complexity of process and labor intensity: The additional "flat grinding" process forces the production process to be interrupted and causes backflow, which not only prolongs the production cycle, but also significantly increases the number of times operators handle materials and load and unload, raising the labor intensity and also bringing the risk of secondary bumps and injuries. Utility Model Content

[0005] To address the technical problems existing in the background art, this utility model proposes a clamp-free bearing ring processing equipment.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A clamp-free bearing ring processing device includes a machine base, a positioning component for positioning the bearing ring, a conveying channel for conveying the bearing ring to the positioning component, and a grinding component for grinding the groove. The positioning assembly includes a positioning body, a receiving plate and a positioning plate disposed on the positioning body, a turntable assembly for driving the bearing ring to rotate, a positioning rotation unit for positioning the bearing ring, and a pushing unit for pushing the bearing ring to move. The pushing unit pushes the bearing ring to the positioning area of ​​the receiving plate, and the actuating end of the positioning rotation unit pushes the bearing ring on the positioning area to abut against the positioning plate, so that the bearing ring is fixed between the positioning rotation unit and the positioning plate, and the turntable assembly fits against the bearing ring and drives it to rotate. The grinding assembly includes a grinding head, a drive unit for clamping and rotating the grinding head, and a transverse module for moving the drive unit.

[0007] Preferably, the conveying channel is located above the receiving plate, and the positioning area forms a positioning groove for the bearing ring to be inserted. The positioning groove is arranged opposite to the moving end of the positioning rotation unit. With the above improvement, when the bearing ring falls from the conveying channel onto the receiving plate and enters the positioning area under the action of the pushing unit, the moving end of the positioning rotation unit extends to press the bearing ring against the positioning plate. At this time, the outer circumference of the bearing ring abuts against the turning plate assembly and the moving end of the pushing unit, allowing the bearing ring to rotate and perform groove grinding under the action of the grinding assembly. The entire processing process does not require clamping the outer diameter of the ring, avoiding damage to the outer surface of the ring.

[0008] Preferably, the positioning plate forms a grinding hole for inserting the grinding head, and a wear-resistant plate is embedded at one end of the grinding hole. The wear-resistant plate abuts against the bearing ring. Through the above improvements, during the groove grinding process, the transverse module drives the main unit to move, so that the grinding head passes through the grinding hole to process the bearing ring, and the wear-resistant plate abuts against the bearing ring, which not only increases the service life of the positioning plate, but also avoids damage to the end face of the bearing ring.

[0009] Preferably, the turntable assembly includes a first turntable and a second turntable mounted on the positioning body, and a drive unit for driving the first turntable and the second turntable to rotate. The first turntable and the second turntable respectively abut against the outer circumference of the bearing ring. Through the above improvements, the drive unit can synchronously drive the first turntable and the second turntable to rotate via a transmission belt or gear set. By utilizing the first turntable and the second turntable respectively abutting against the outer circumference of the bearing ring, the bearing ring is driven to rotate for grinding the groove.

[0010] Preferably, the first and second turntables are slidably mounted on the positioning body, and the positioning body is provided with an elastic element. The elastic element of the first and second turntables ensures that the first and second turntables always have a tendency to move towards the bearing ring. With the above improvement, after the processing of the bearing ring is completed, the actuating end of the pushing unit causes the next bearing ring to fall onto the receiving plate. Then, the actuating end of the pushing unit continues to extend, causing the unprocessed bearing ring to push the processed bearing ring, causing the processed bearing ring to push open the first and second turntables and fall from between the first and second turntables into the unloading channel for automatic unloading.

[0011] Preferably, the first and second turntables are provided with abutment rings on their outer peripheries. Through the above improvements, the stability of the first and second turntables abutting the bearing rings is increased, and damage to the outer periphery of the bearing rings is avoided.

[0012] Preferably, the actuating end of the pushing unit is connected to a push rod, and when the bearing ring rotates in the positioning area, the push rod, the first turntable, and the second turntable abut against the outer circumference of the bearing ring at equal intervals. Through the above improvements, the push rod, the first turntable, and the second turntable abut against the outer circumference of the bearing ring at equal intervals form a triangular positioning, which greatly improves the stability of the bearing ring during rotation.

[0013] Preferably, the positioning and rotating unit includes a mounting body and a connecting rod rotatably inserted into the mounting body. The mounting body has an air intake chamber and an air intake hole connected to the air intake chamber. Through the above improvements, the air intake hole is connected to an air pipe to control the retraction of the connecting rod on the mounting body, thereby achieving the compression, fixing, or release of the bearing ring.

[0014] Preferably, the end of the push rod is provided with an arc-shaped push plate, and the push plate has a guide wheel. Through the above improvements, the guide wheel can guide the bearing ring during the rotation process, thereby improving the smoothness of the bearing ring during rotation.

[0015] Preferably, the end of the abutment rod is provided with a wear-resistant protrusion. Through the above improvements, not only is the reliability of the abutment against the bearing ring increased, but damage to the bearing ring is also avoided.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: During the entire bearing ring processing, the bearing ring falls onto the receiving plate through the conveying channel and moves to the positioning area under the action of the pushing unit, where it abuts against the turntable assembly. Subsequently, the moving end of the positioning and rotating unit pushes the bearing ring on the positioning area against the positioning plate. The transverse module drives the grinding head through the positioning plate to grind the bearing ring. During the grinding process, the turntable assembly drives the bearing ring to rotate, thereby achieving the grinding of the bearing ring grooves. In the entire process, there is no need to clamp the outer surface of the bearing ring as in traditional structures, thus eliminating the need for a separate outer surface grinding process, greatly improving production efficiency, reducing the number of transfers, and reducing the labor intensity of employees. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the overall structure of this utility model from another angle; Figure 3 For the present utility model Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a schematic diagram of the grinding structure of this utility model; Figure 5 This is a schematic diagram of the positioning structure and the feeding structure of this utility model in cooperation. Figure 6 This is a schematic diagram of the structure of the drive turntable assembly and push rod abutting against the bearing ring of this utility model; Figure 7 This is a schematic diagram of the receiving plate of this utility model; Figure 8 This is a schematic diagram of the push rod of this utility model; Figure 9 This is a schematic diagram of the positioning plate of this utility model; Figure 10 This is a schematic diagram of the drive turntable assembly of this utility model; Figure 11 This is a schematic diagram of the abutment rotation unit of this utility model; Figure 12 This is a cross-sectional view of the positioning structure of this utility model; In the diagram: 1. Machine base; 2. Positioning assembly; 3. Conveying channel; 4. Grinding assembly; 1.1. Positioning main body; 1.2. Receiving plate; 1.3. Positioning plate; 1.4. Turntable assembly; 1.5. Positioning rotation unit; 1.6. Pushing unit; 1.7. Positioning area; 1.8. Unloading channel; 2.1. Grinding head; 2.2. Drive unit; 2.3. Transverse module; 3.1. Positioning groove; 3.2. Grinding hole; 3.3. Wear-resistant plate; 3.4. 3.5 First turntable; 3.6 Second turntable; 3.7 Drive unit; 3.8 Elastic element; 3.9 Abutment ring; 4.0 Push rod; 4.1 Mounting body; 4.2 Abutment rod; 4.3 Air inlet chamber; 4.4 Air inlet hole; 5.1 Push plate; 5.2 Guide wheel; 5.3 Wear-resistant protrusion; 6.1 Position sensor; 6.2 Sliding groove; 6.3 Mounting block; 6.4 Tensioning wheel; 7.1 Positioning cylinder; 7.2 Positioning hole; Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0020] like Figure 1-12 As shown, a clamp-free bearing ring processing equipment includes a machine base 1, a positioning component 2 for positioning the bearing ring, a conveying channel 3 for conveying the bearing ring to the positioning component 2, and a grinding component 4 for grinding the groove. The positioning assembly 2 includes a positioning body 1.1, a receiving plate 1.2 and a positioning plate 1.3 disposed on the positioning body 1.1, a turntable assembly 1.4 for driving the bearing ring to rotate, a positioning rotation unit 1.5 for positioning the bearing ring, and a pushing unit 1.6 for pushing the bearing ring to move. The pushing unit 1.6 pushes the bearing ring to the positioning area 1.7 of the receiving plate 1.2. The actuating end of the positioning rotation unit 1.5 pushes the bearing ring on the positioning area 1.7 to abut against the positioning plate 1.3, so that the bearing ring is fixed between the positioning rotation unit 1.5 and the positioning plate 1.3, and the turntable assembly 1.4 fits against the bearing ring and drives it to rotate. The grinding assembly 4 includes a grinding head 2.1, a drive host 2.2 for clamping and rotating the grinding head 2.1, and a transverse module 2.3 for moving the drive host 2.2.

[0021] During the entire bearing ring processing, the bearing ring falls onto the receiving plate 1.2 through the conveying channel 3 and moves to the positioning area 1.7 under the action of the pushing unit 1.6, where it abuts against the turntable assembly 1.4. Subsequently, the moving end of the positioning rotation unit 1.5 pushes the bearing ring on the positioning area 1.7 against the positioning plate 1.3. The transverse module 2.3 drives the grinding head 2.1 through the positioning plate 1.3 to grind the bearing ring. During the grinding process, the turntable assembly 1.4 drives the bearing ring to rotate to achieve grinding of the bearing ring groove. In the whole process, there is no need to clamp the outer surface of the bearing ring as in the traditional structure, thus eliminating the need for a further outer surface grinding process, greatly improving production efficiency, reducing the number of transfers, and reducing the labor intensity of employees.

[0022] like Figure 7 As shown, as a further explanation of the embodiment of the receiving plate 1.2, the conveying channel 3 is located above the receiving plate 1.2, and the positioning area 1.7 is formed with a positioning groove 3.1 for the bearing ring to be placed. The positioning groove 3.1 is arranged opposite to the moving end of the positioning rotation unit 1.5. When the bearing ring falls from the conveying channel 3 onto the receiving plate 1.2 and enters the positioning groove 3.1 of the positioning area 1.7 under the action of the pushing unit 1.6, the moving end of the positioning rotation unit 1.5 extends and presses the bearing ring against the positioning plate 1.3. At this time, the outer circumference of the bearing ring abuts against the moving end of the turntable assembly 1.4 and the pushing unit 1.6, so that the bearing ring can rotate and be grooved under the action of the grinding assembly 4. The entire processing does not require clamping the outer diameter of the ring, avoiding damage to the outer surface of the ring.

[0023] Furthermore, a positioning sensor 6.1 is embedded in the positioning groove 3.1 to ensure the accuracy of the bearing ring in the processing position. Only when the bearing ring is placed into the positioning groove 3.1 will the positioning rotation unit 1.5 abut the bearing ring against the positioning plate 1.3 to ensure the accuracy of the bearing ring position.

[0024] like Figure 9As shown, as a further explanation of the embodiment of the positioning plate 1.3, the positioning plate 1.3 forms a grinding hole 3.2 for the grinding head 2.1 to be inserted, and a wear-resistant plate 3.3 is embedded at one end of the grinding hole 3.2. The wear-resistant plate 3.3 abuts against the bearing ring. During the groove grinding process, the transverse module 2.3 drives the drive host 2.2 to move, so that the grinding head 2.1 passes through the grinding hole 3.2 to process the bearing ring, and the wear-resistant plate 3.3 abuts against the bearing ring, which not only increases the service life of the positioning plate 1.3, but also avoids damage to the end face of the bearing ring.

[0025] Furthermore, the wear-resistant plate 3.3 is made of diamond material. The diamond material wear-resistant plate 3.3 has high wear resistance, which greatly improves the service life of the wear-resistant plate 3.3. In addition, diamond has a very low coefficient of friction, thereby increasing the smoothness of the bearing ring during rotation.

[0026] like Figure 5 , Figure 6 , Figure 10 As shown, as a further explanation of the specific implementation of the turntable assembly 1.4, the turntable assembly 1.4 includes a first turntable 3.4 and a second turntable 3.5 mounted on the positioning body 1.1, and a drive unit 3.6 for driving the first turntable 3.4 and the second turntable 3.5 to rotate. The first turntable 3.4 and the second turntable 3.5 respectively abut against the outer circumference of the bearing ring. The drive unit 3.6 can synchronously drive the first turntable 3.4 and the second turntable 3.5 to rotate via a transmission belt or a gear set. By utilizing the fact that the first turntable 3.4 and the second turntable 3.5 abut against the outer circumference of the bearing ring, the bearing ring is driven to rotate, so as to perform groove grinding.

[0027] Furthermore, the first turntable 3.4 and the second turntable 3.5 are slidably mounted on the positioning body 1.1, and an elastic element 3.7 is provided inside the positioning body 1.1. The elastic element 3.7 connects the first turntable 3.4 and the second turntable 3.5 so that the first turntable 3.4 and the second turntable 3.5 always have a tendency to move towards the bearing ring. After the processing of the bearing ring is completed, the actuating end of the pushing unit 1.6 causes the next bearing ring to fall onto the receiving plate 1.2. Then, the actuating end of the pushing unit 1.6 continues to extend, causing the unprocessed bearing ring to push the processed bearing ring, causing the processed bearing ring to push open the first turntable 3.4 and the second turntable 3.5, and fall from between the first turntable 3.4 and the second turntable 3.5 into the unloading channel 1.8 for automatic unloading.

[0028] Specifically, the positioning body 1.1 is provided with a sliding groove 6.2, and a number of mounting blocks 6.3 are slidably arranged in the sliding groove 6.2. The first turntable 3.4 and the second turntable 3.5 are mounted on the mounting blocks 6.3, and the elastic element 3.7 is arranged on the mounting blocks 6.3. The elastic element 3.7 abuts against the sliding groove 6.2 so that the first turntable 3.4 and the second turntable 3.5 always have a tendency to move towards the bearing ring.

[0029] After grinding is completed, push rod 3.9 retracts, causing the next bearing ring to fall onto receiving plate 1.2. Push rod 3.9 extends again, moving the next bearing ring to positioning area 1.7, and forcing the finished bearing ring to push open the first turntable 3.4 and the second turntable 3.5 for discharge.

[0030] In addition, a tensioning wheel 6.4 is slidably mounted on the positioning body 1.1. The tensioning wheel 6.4 is also mounted on the mounting block 6.3. The tensioning wheel 6.4 abuts against the transmission belt, and an elastic element 3.7 is provided on the mounting block 6.3. The elastic element 3.7 abuts against the sliding groove 6.2 so that the tensioning wheel 6.4 always has a tendency to move towards the transmission belt. When the first turntable 3.4 and the second turntable 3.5 are away from the bearing ring, the first turntable 3.4 and the second turntable 3.5 form a discharge port. When the bearing ring is being unloaded, the tensioning wheel 6.4 will always abut against the transmission belt to keep the transmission belt in a taut state, thereby ensuring the stability of the first turntable 3.4 and the second turntable 3.5.

[0031] In addition, a positioning cylinder 7.1 is provided on the positioning body 1.1, and a positioning hole 7.2 is provided on the mounting block 6.3 for the actuating end of the positioning cylinder to be inserted. During the bearing ring grinding process, the actuating end of the positioning cylinder 7.1 is inserted into the positioning hole to ensure the stability of the first turntable 3.4 and the second turntable 3.5 during rotation.

[0032] Preferably, the outer periphery of the first turntable 3.4 and the second turntable 3.5 is provided with an abutment ring 3.8, which increases the stability of the first turntable 3.4 and the second turntable 3.5 abutting the bearing ring and avoids damage to the outer periphery of the bearing ring.

[0033] like Figure 5 , Figure 6 , Figure 8 As shown, a further explanation of the structure of the pusher unit 1.6 is provided. The actuating end of the pusher unit 1.6 is connected to a push rod 3.9. When the bearing ring rotates in the positioning area 1.7, the push rod 3.9, the first turntable 3.4, and the second turntable 3.5 abut against the outer circumference of the bearing ring at equal intervals. The push rod 3.9, the first turntable 3.4, and the second turntable 3.5 abut against the outer circumference of the bearing ring at equal intervals form a triangular positioning, which greatly improves the stability of the bearing ring during rotation.

[0034] Furthermore, the end of the push rod 3.9 is provided with an arc-shaped push plate 5.1, and the push plate 5.1 has a guide wheel 5.2. During the rotation of the bearing ring, the guide wheel 5.2 can guide the bearing ring and improve the smoothness of the bearing ring during the rotation process.

[0035] like Figure 11 , Figure 12 As shown, a further explanation of the embodiment of the positioning and rotating unit 1.5 is provided. The positioning and rotating unit 1.5 includes a mounting body 4.1 and an abutment rod 4.2 rotatably inserted into the mounting body 4.1. An air inlet chamber 4.3 is formed inside the mounting body 4.1, and an air inlet hole 4.4 is formed on the mounting body 4.1 to connect to the air inlet chamber 4.3. An air pipe is connected through the air inlet hole 4.4 to control the retraction of the abutment rod 4.2 on the mounting body 4.1, thereby realizing the compression and fixation or release of the bearing ring.

[0036] In addition, the end of the abutment rod 4.2 is provided with a wear-resistant protrusion 5.3, which not only ensures increased reliability of the abutment against the bearing ring, but also avoids damage to the bearing ring.

[0037] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A clamp-free bearing ring processing equipment, comprising a machine base (1), characterized in that, The machine tool (1) is provided with a positioning assembly (2) for positioning bearing rings, a conveying channel (3) for conveying bearing rings to the positioning assembly (2), and a grinding assembly (4) for grinding the grooves. The positioning assembly (2) includes a positioning body (1.1), a receiving plate (1.2) and a positioning plate (1.3) disposed on the positioning body (1.1), a turntable assembly (1.4) for driving the bearing ring to rotate, a positioning rotation unit (1.5) for positioning the bearing ring, and a pushing unit (1.6) for pushing the bearing ring to move. The pushing unit (1.6) pushes the bearing ring to the positioning area (1.7) of the receiving plate (1.2). The actuating end of the positioning rotation unit (1.5) pushes the bearing ring on the positioning area (1.7) to abut against the positioning plate (1.3) so that the bearing ring is fixed between the positioning rotation unit (1.5) and the positioning plate (1.3), and the turntable assembly (1.4) fits against the bearing ring and drives it to rotate. The grinding assembly (4) includes a grinding head (2.1), a drive unit (2.2) for clamping and rotating the grinding head (2.1), and a transverse module (2.3) for moving the drive unit (2.2).

2. The clamp-free bearing ring processing equipment according to claim 1, characterized in that: The conveying channel (3) is located above the receiving plate (1.2), and the positioning area (1.7) forms a positioning groove (3.1) for inserting the bearing ring. The positioning groove (3.1) is arranged opposite to the moving end of the positioning rotation unit (1.5).

3. The clamp-free bearing ring processing equipment according to claim 1, characterized in that: The positioning plate (1.3) forms a grinding hole (3.2) for inserting the grinding head (2.1), and a wear-resistant plate (3.3) is embedded at one end of the grinding hole (3.2), which abuts against the bearing ring.

4. The clamp-free bearing ring processing equipment according to claim 1, characterized in that: The turntable assembly (1.4) includes a first turntable (3.4) and a second turntable (3.5) mounted on the positioning body (1.1), and a drive unit (3.6) for driving the first turntable (3.4) and the second turntable (3.5) to rotate. The first turntable (3.4) and the second turntable (3.5) respectively abut against the outer circumference of the bearing ring.

5. The clamp-free bearing ring processing equipment according to claim 4, characterized in that: The first turntable (3.4) and the second turntable (3.5) are slidably disposed on the positioning body (1.1), and the positioning body (1.1) is provided with an elastic element (3.7), which connects the first turntable (3.4) and the second turntable (3.5) so that the first turntable (3.4) and the second turntable (3.5) always have a tendency to move towards the bearing ring.

6. The clamp-free bearing ring processing equipment according to claim 4, characterized in that: The first turntable (3.4) and the second turntable (3.5) are provided with an abutment ring (3.8) on their outer periphery.

7. The clamp-free bearing ring processing equipment according to claim 4, characterized in that: The pusher unit (1.6) is connected to a push rod (3.9) at its actuating end. When the bearing ring rotates in the positioning area (1.7), the push rod (3.9), the first turntable (3.4), and the second turntable (3.5) abut against the outer circumference of the bearing ring at equal intervals.

8. The clamp-free bearing ring processing equipment according to claim 1, characterized in that: The positioning and rotating unit (1.5) includes a mounting body (4.1) and an abutment rod (4.2) rotatably inserted into the mounting body (4.1). The mounting body (4.1) forms an air intake chamber (4.3), and the mounting body (4.1) forms an air intake hole (4.4) connecting the air intake chamber (4.3).

9. The clamp-free bearing ring processing equipment according to claim 7, characterized in that: The push rod (3.9) has an arc-shaped push plate (5.1) at its end, and the push plate (5.1) has a guide wheel (5.2).

10. The clamp-free bearing ring processing equipment according to claim 8, characterized in that: The end of the abutment rod (4.2) is provided with a wear-resistant protrusion (5.3).

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