A spherical surface grinding device

Abstract

The application discloses a spherical surface grinding device, and relates to the technical field of metal surface processing treatment, which comprises a indexing assembly, a feeding assembly and a grinding mechanism. The output end of the indexing assembly is clamped and fixed with a workpiece to be polished, so as to drive the workpiece to rotate. The output end of the feeding assembly is in transmission connection with the indexing assembly. The feeding assembly is used for driving the workpiece located at a polishing position to horizontally reciprocate and shift through the indexing assembly. The rotating axis direction of the workpiece intersects with the feeding direction of the workpiece. The grinding mechanism comprises a grinding sheet and a shaping assembly. The shaping assembly is used for shaping the grinding sheet from a planar shape into a spherical surface shape. When the workpiece is driven by the feeding assembly to move to the maximum displacement in the direction of approaching the shaped grinding sheet, the grinding sheet is frictionally attached to the spherical surface of the workpiece. The spherical surface grinding device can shape the grinding sheet to adapt to the spherical surface of the workpiece, so as to ensure the grinding precision.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of metal surface processing treatment, and particularly relates to a spherical surface grinding device. BACKGROUND

[0002] In a metal forming process, material removal processing is an important means to realize precise forming of a workpiece, and metal cutting is a core method thereof, and even in the modern mechanical manufacturing field, the application proportion of metal cutting is still high. In essence, the core logic of the processing of a metal cutting machine tool is to cut off the excess metal material on the surface of a workpiece to be processed by means of a specific processing method, so that the workpiece finally meets the shape, size and precision requirements required by the design.

[0003] Among various metal cutting processes, grinding is particularly important. When the processing object is a workpiece with a spherical surface or a partial spherical surface structure, a conventional plane or cylindrical surface grinding wheel cannot adapt to the curved surface form of the workpiece, and the position and form of the workpiece need to be adjusted multiple times during grinding, which affects the processing efficiency and grinding quality. SUMMARY

[0004] The purpose of the application is to provide a spherical surface grinding device with simple structure and reasonable design to solve the above problems.

[0005] The application achieves the above purpose by the following technical solutions:

[0006] A spherical surface grinding device comprises:

[0007] A indexing assembly, an output end of the indexing assembly clamping and fixing a workpiece to be ground, the indexing assembly being used to drive the workpiece to rotate;

[0008] A feeding assembly, an output end of the feeding assembly being in transmission connection with the indexing assembly, the feeding assembly being used to drive the workpiece located at a grinding position to horizontally reciprocate by the indexing assembly, wherein the rotating axis direction of the workpiece and the feeding direction of the workpiece intersect;

[0009] A grinding mechanism, the grinding mechanism comprising a grinding sheet and a shaping assembly, the shaping assembly being used to shape the grinding sheet located at a quasi-grinding position from a plane shape into a spherical surface shape conforming to the workpiece, when the workpiece is driven by the feeding assembly to move to the maximum displacement in the direction close to the shaped grinding sheet, the grinding sheet and the spherical surface of the workpiece frictionally conform.

[0010] As a further optimization of the present invention, the shaping component includes an inner side plate, an outer side plate, and a shaping drive component. The grinding disc is located between the inner side plate and the outer side plate, and the inner side plate is located on one side of the grinding surface of the grinding disc. The output end of the shaping drive component drives the inner side plate and the outer side plate respectively. The shaping drive component is used to drive the inner side plate and the outer side plate to move towards each other until the grinding disc is clamped between the inner side plate and the outer side plate. The inner side plate has a notch, and the grinding disc exposed at the notch is used to frictionally adhere to the spherical surface of the workpiece.

[0011] As a further optimization of the present invention, the shaping drive assembly includes a first connecting rod, a second connecting rod, a first slider, a first lead screw, and a first driving member. The output end of the first driving member is drivenly connected to the first lead screw. The two ends of the first lead screw are respectively rotatably connected to the first slide block. The two ends of the first lead screw have opposite thread directions. The opposite threaded portions of the first lead screw are respectively threaded to the first slider. The two first sliders are respectively connected to the first guide rod. The two ends of the first guide rod are respectively rotatably mounted on the first slide block. The side of one of the first sliders is fixedly connected to the first cantilever. The first cantilever is fixedly connected to the first connecting rod. The end of the first connecting rod away from the cantilever is fixedly connected to the inner side plate. The side of the other first slider is fixedly connected to the second cantilever. The second cantilever is fixedly connected to the second connecting rod. The end of the second connecting rod away from the cantilever is fixedly connected to the outer side plate. The sliding directions of the two first sliders are opposite.

[0012] As a further optimization of the present invention, the grinding disc is sequentially sleeved on the waist drum roller and the drive roller, wherein the waist drum rollers are arranged in pairs, and the two waist drum rollers are respectively located above and below the shaping component. The two waist drum rollers and the drive roller are respectively rotatably mounted on the mounting plate, and the input end of the drive roller is drivenly connected to a fourth drive component.

[0013] As a further optimization of the present invention, the mounting plate is also provided with an adjusting component. The output end of the adjusting component is fixedly connected to an adjusting plate. A driven roller is rotatably mounted on the upper end of the adjusting plate. The lower end of the adjusting plate is fastened to the mounting plate by a locking bolt. The driven roller is located between the driving roller and the waist drum roller. The grinding disc is sleeved on the driven roller.

[0014] As a further optimization of the present invention, the adjusting members are arranged in pairs, and the paired adjusting members are symmetrically arranged on both sides of the adjusting plate.

[0015] As a further optimization of the present invention, the indexing assembly includes a third driving member, a slant seat, a chuck, and jaws. The chuck is rotatably mounted on the slant seat. The output end of the third driving member is drivenly connected to the chuck. The chuck has a workpiece hole for placing the rod portion of the workpiece. Multiple jaws are slidably mounted on the chuck and are distributed circumferentially around the workpiece hole. The input end of the jaws is drivenly connected to a clamping driving member, which is embedded in the chuck and is used to drive the jaws to clamp and fix the shaft portion of the workpiece.

[0016] As a further optimization of the present invention, a flange is fixedly provided on one end edge of the chuck near the inclined seat, and a limiting block is fixedly provided on the inclined seat, wherein the flange is limited to the position between the protrusion of the limiting block and the inclined seat.

[0017] As a further optimization of the present invention, the feeding assembly includes a second driving member, a second slide block, a second lead screw, and a second slider. The output end of the second driving member is connected to the second lead screw, and the two ends of the second lead screw are rotatably mounted on the second slide block. The second lead screw is threadedly connected to the second slider, and a second guide rod is installed through the second slider. The second guide rod is slidably connected to the second slider, and the two ends of the second guide rod are fixedly mounted on the second slide block.

[0018] As a further optimization of the present invention, a support is fixedly installed on the second slide, and a turntable is rotatably installed on the support. The input end of the turntable is connected to a fifth driving member. Multiple indexing components are provided on the side of the turntable away from the fifth driving member. The inclined seat is fixedly installed on the turntable.

[0019] The present invention has at least the following beneficial effects: The present invention provides a spherical grinding processing device, including an indexing component, a feeding component, and a grinding mechanism. The output end of the indexing component clamps and fixes the workpiece to be ground. The indexing component is used to drive the workpiece to rotate. The grinding mechanism includes a grinding disc and a shaping component. The shaping component is used to shape the grinding disc, which is located at the quasi-grinding position, from a planar shape to a spherical shape that fits the workpiece. The feeding component is used to move the rotating workpiece toward the grinding disc through the indexing component, so as to realize that the shaped grinding disc fits the spherical contour of the workpiece, thereby ensuring the grinding quality and efficiency of the workpiece and eliminating the need for manual adjustment of the workpiece angle multiple times.

[0020] Moreover, the rotation axis of the workpiece intersects with the feed direction of the workpiece, so that along the feed direction of the workpiece, the grinding disc first rubs against the two ends of the spherical surface and gradually rubs against the front end of the spherical surface, so as to achieve the step-by-step grinding of the spherical surface and ensure the grinding quality of the spherical surface.

[0021] In addition, the grinding disc is set in a U-shaped strip and is sequentially sleeved on the drive roller, driven roller and waist drum roller. The input end of the drive roller is connected to the fourth drive unit. After the grinding disc has been grinding for a period of time, when it needs to be replaced, simply move the inner and outer plates in the shaping assembly away from each other to release the clamping and fixing of the grinding disc aligned with the grinding position. Driven by the fourth drive unit, the drive roller rotates, causing the grinding disc to rotate, so that the new un-grinded part of the grinding disc is moved to the position of the corresponding notch. With the help of the inner and outer plates moving closer to each other, the new grinding disc is shaped into an arc structure that fits the spherical contour, so as to achieve efficient replacement of the grinding disc. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is the invention Figure 1 A schematic diagram of the front structure;

[0024] Figure 3 This is a schematic diagram of the grinding mechanism and shaping component of the present invention;

[0025] Figure 4 This is a structural schematic diagram of the grinding mechanism and shaping component of the present invention from another perspective;

[0026] Figure 5 This is a top view of the structure of the shaping component of the present invention;

[0027] Figure 6 This is a partial top view of the transposition component and shaping component of the present invention;

[0028] Figure 7 This is a partial top view of the indexing and shaping components of the present invention when the workpiece is in the grinding position;

[0029] Figure 8 This is a schematic diagram of the transposition component of the present invention;

[0030] Figure 9 Figure (a) is a schematic diagram of the structure of the processed part of the present invention, wherein (b) is a schematic diagram of the structure of the hydraulic pump plunger and (c) is a schematic diagram of the structure of the ball valve.

[0031] In the diagram: 11. Indexing assembly; 111. Third drive unit; 112. Inclined seat; 113. Chuck; 114. Jaw; 115. Workpiece hole; 116. Limiting block; 117. Flange; 121. Turntable; 122. Support; 13. Feed assembly; 131. Second drive unit; 132. Second slide; 133. Second lead screw; 134. Second slider; 135. Second guide rod; 2. Worktable; 3. Grinding disc; 4. Grinding mechanism; 41. Waist drum roller; 4 2. Base; 43. Mounting plate; 44. Drive roller; 45. Driven roller; 46. Adjusting component; 47. Adjusting plate; 48. Fourth driving component; 49. Locking bolt; 5. Shaping assembly; 51. Inner side plate; 501. Notch; 52. Outer side plate; 53. First connecting rod; 54. First cantilever; 55. First slider; 56. First lead screw; 57. First driving component; 58. First slide block; 59. First guide rod; 510. Second cantilever; 511. Second connecting rod. Detailed Implementation

[0032] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0033] like Figure 1 , Figure 2 As shown, the present invention provides a spherical grinding processing apparatus, comprising:

[0034] The indexing assembly 11 has an output end that clamps and fixes a workpiece to be polished, and the indexing assembly 11 is used to drive the workpiece to rotate.

[0035] Feed assembly 13, the output end of which is connected to indexing assembly 11 via a transmission connection, is used to drive the workpiece located in the grinding position to reciprocate horizontally via indexing assembly 11. The rotation axis of the workpiece intersects with its feed direction. Figure 6 As shown, the dashed line indicates the direction of the rotation axis of the workpiece, while the feed direction of the workpiece is horizontal from left to right.

[0036] The grinding mechanism 4 includes a grinding disc 3 and a shaping component 5. The shaping component 5 is used to shape the grinding disc 3, which is located in the quasi-grinding position, from a planar shape to a spherical shape that fits the workpiece. When the indexing component 11 drives the workpiece to move towards the shaped grinding disc 3 to the maximum displacement under the drive of the feed component 13, the grinding disc 3 and the spherical surface of the workpiece are rubbed together.

[0037] The shaping component 5 shapes the grinding disc 3 to ensure that it can adapt to the curved shape of the spherical surface of the workpiece. This allows the grinding disc 3 to be in close contact with the spherical surface of the workpiece. Driven by the feed component 13, the workpiece moves towards the shaped grinding disc 3 to its maximum displacement. That is, along the feed direction of the workpiece, the grinding disc 3 first rubs against the two ends of the spherical surface and then gradually rubs against the front end of the spherical surface to achieve step-by-step grinding of the spherical surface and ensure the grinding quality of the spherical surface.

[0038] It should be noted that the machined parts are hydraulic pump plungers or ball valves, such as... Figure 9 As shown in (a), the simplified diagram is a hydraulic pump plunger, as... Figure 9 As shown in (b), which is a simple illustration of a ball valve, any assembly with a similar structure can be spherically ground using the processing apparatus of this application.

[0039] For example, see [link to relevant documentation]. Figure 2 and Figure 3 The shaping component 5 includes an inner side plate 51, an outer side plate 52, and a shaping drive component. The grinding disc 3 is located between the inner side plate 51 and the outer side plate 52, and the inner side plate 51 is located on one side of the grinding surface of the grinding disc 3. The output end of the shaping drive component drives the inner side plate 51 and the outer side plate 52 respectively. The shaping drive component is used to drive the inner side plate 51 and the outer side plate 52 to move towards each other until the grinding disc 3 is clamped between the inner side plate 51 and the outer side plate 52. The inner side plate 51 has a notch 501, and the grinding disc 3 exposed at the notch 501 is used to rub against the spherical surface of the workpiece.

[0040] Both the inner plate 51 and the outer plate 52 have concave arc-shaped structures, allowing them to approach each other under the drive of the shaping drive assembly, thus clamping the grinding disc 3 between them. The portion of the grinding disc 3 exposed by the notch 501 serves as the quasi-grinding part, grinding the material from the left side (with... Figure 2 Taking the orientation shown as an example, the workpiece gradually moves to the right until it comes into frictional contact with the grinding disc 3. While moving to the right, the workpiece rotates under the drive of the indexing assembly 11 to achieve the step-by-step grinding of the spherical surface of the workpiece by the grinding disc 3, thus ensuring the processing quality.

[0041] Continue to refer to Figure 3 and Figure 5The shaping drive assembly includes a first connecting rod 53, a second connecting rod 511, a first slider 55, a first lead screw 56, and a first drive member 57. The output end of the first drive member 57 is connected to the first lead screw 56. The two ends of the first lead screw 56 are rotatably connected to the first slide block 58, and the two ends of the first lead screw 56 have opposite threads. The opposite threaded portions of the first lead screw 56 are threaded to the first slider 55, and the two first sliders 55 are respectively connected to the first guide rods 59. The two first sliders 55 are rotatably mounted on the first slide block 58. One first slider 55 has a first cantilever 54 fixedly connected to its side, and a first connecting rod 53 fixedly connected to the first cantilever 54. An inner side plate 51 is fixedly connected to the end of the first connecting rod 53 away from the cantilever. The other first slider 55 has a second cantilever 510 fixedly connected to its side, and a second connecting rod 511 fixedly connected to the second cantilever 511. An outer side plate 52 is fixedly connected to the end of the second connecting rod 511 away from the cantilever. The sliding directions of the two first sliders 55 are opposite. For example, the first driving member 57 is a drive motor, causing the two first sliders 55 to move away from each other under the drive of the first driving member 57, causing the inner side plate 51 and the outer side plate 52 to move closer together, thus clamping and fixing the grinding disc 3. Similarly, when the two first sliders 55 move closer together under the drive of the first driving member 57, the inner side plate 51 and the outer side plate 52 move away from each other, thus releasing the grinding disc 3.

[0042] For example, see [link to relevant documentation]. Figure 3 and Figure 4 The grinding discs 3 are sequentially sleeved on the waist drum rollers 41 and the drive roller 44. The waist drum rollers 41 are arranged in pairs, with the two rollers 41 positioned above and below the shaping assembly 5, respectively. The waist drum rollers 41 can pre-bend the flat grinding discs 3, allowing the grinding discs 3, which have shifted between the inner side plate 51 and the outer side plate 52, to be smoothly clamped and shaped, improving shaping efficiency. The two waist drum rollers 41 and the drive roller 44 are rotatably mounted on the mounting plate 43. The input end of the drive roller 44 is connected to a fourth driving element 48. For example, the fourth driving element 48 is a drive motor, which drives the drive roller 44 to rotate. Under frictional drive, the grinding discs 3 are driven to rotate. Figure 2 Taking the orientation shown as an example, when the inner side plate 51 and the outer side plate 52 are separated, the fourth driving member 48 drives the active roller 44 to rotate counterclockwise, and the grinding disc 3 is driven to rotate counterclockwise to adjust the part of the grinding disc 3 in the notch 501, so that the new part of the grinding disc 3 is conveyed to the new quasi-grinding position. Then, with the help of the first driving member 57, the inner side plate 51 and the outer side plate 52 move closer to each other to clamp the grinding disc 3, so as to realize the replacement of the grinding disc 3.

[0043] It should be noted that the mounting plate 43 is fixedly mounted on the base 42, and the base 42 is placed on the workbench 2, as follows. Figure 1 andFigure 3 As shown.

[0044] Continue reading Figure 3 and Figure 4 The mounting plate 43 is also equipped with an adjusting component 46. An adjusting plate 47 is fixedly connected to the output end of the adjusting component 46. A driven roller 45 is rotatably mounted on the upper end of the adjusting plate 47, and the lower end of the adjusting plate 47 is fastened to the mounting plate 43 by a locking bolt 49. The driven roller 45 is located between the driving roller 44 and the waist drum roller 41, and the grinding disc 3 is sleeved on the driven roller 45. For example, the adjusting component 46 is a hydraulic telescopic cylinder. By adjusting the telescopic movement of the adjusting component 46, the height of the adjusting plate 47 is adjusted so that the position of the driven roller 45 matches the tension of the grinding disc 3. Then, the position of the adjusting plate 47 can be fixed by means of the locking bolt 49.

[0045] It should be noted that, as Figure 4 As shown, the adjusting components 46 are arranged in pairs and symmetrically arranged on both sides of the adjusting plate 47. The paired adjusting components 46 need to be driven synchronously to ensure the height adjustment of the adjusting plate 47 is stable and to prevent the driven roller 45 from overturning under the tension of the grinding disc 3.

[0046] Continue reading Figure 1 , Figure 2 and Figure 8 The indexing assembly 11 includes a third drive member 111, a slant seat 112, a chuck 113, and jaws 114. The chuck 113 is rotatably mounted on the slant seat 112. The output end of the third drive member 111 is drivenly connected to the chuck 113. The chuck 113 has a workpiece hole 115 for placing the rod portion of the workpiece. Multiple jaws 114 are slidably mounted on the chuck 113, circumferentially distributed around the workpiece hole 115. The input end of each jaw 114 is drivenly connected to a clamping drive member, which is embedded in the chuck 113 and drives the jaws 114 to clamp and fix the shaft portion of the workpiece. Exemplarily, the clamping drive member can be an electric telescopic cylinder or an electric pneumatic cylinder; no limitation is made here.

[0047] Continue to refer to Figure 8 A flange 117 is fixedly provided on one end edge of the chuck 113 near the inclined seat 112. A limiting block 116 is fixedly provided on the inclined seat 112, and the flange 117 is limited to a position between the protrusion of the limiting block 116 and the inclined seat 112. Thus, when the chuck 113 rotates, the limiting block 116 guides and constrains the flange 117, ensuring the rotational stability of the chuck 113.

[0048] Continue reading Figure 1 and Figure 2The feed assembly 13 includes a second drive member 131, a second slide block 132, a second lead screw 133, and a second slider 134. The output end of the second drive member 131 is connected to the second lead screw 133. The two ends of the second lead screw 133 are rotatably mounted on the second slide block 132. The second slider 134 is threadedly connected to the second lead screw 133. A second guide rod 135 is installed through the second slider 134. The second guide rod 135 is slidably connected to the second slider 134. The two ends of the second guide rod 135 are fixedly mounted on the second slide block 132.

[0049] A support 122 is fixedly installed on the second slide 132, and a turntable 121 is rotatably installed on the support 122. The input end of the turntable 121 is connected to a fifth driving component. Multiple indexing components 11 are provided on the side of the turntable 121 away from the fifth driving component. The inclined seat 112 is fixedly installed on the turntable 121.

[0050] It should be noted that, Figure 1 and Figure 2 The distribution of multiple indexing components 11 is simply illustrated. Since no workpiece is held in any of the indexing components 11, the positions of the chucks 114 are simply shown in their initial states. In practical applications, these positions can be dynamically adjusted according to the clamping and unloading states of the workpiece. For example... Figure 2 The four indexing components 11 are evenly distributed on the top, bottom, left, and right sides. For example, the position of the indexing component 11 on the left is used as the position for loading and unloading the workpiece, so that the ground workpiece can be removed and the workpiece to be ground can be reinstalled. The position of the indexing component 11 on the right is used as the position for grinding the workpiece. This is not limited here.

[0051] For example, both the third driving component 111 and the fifth driving component can be drive motors. Under the drive of the fifth driving component, the turntable 121 rotates. Figure 2 Taking the indicated orientation as an example, the turntable 121 is equipped with four indexing components 11. When the turntable 121 rotates clockwise by one station angle, the jaws 114 on the chuck 113 clamp and fix the workpiece, rotating it to the position to be ground. Figure 6 As shown, the dashed line simply represents the axis of rotation of the clamped workpiece under the drive of the third drive member 111. Under the drive of the second drive member 131, the second slider 134 moves to the right, which enables the rotating workpiece to move synchronously to the right in a direction closer to the grinding disc 3. Figure 7 As shown, when the workpiece moves to the right to its maximum displacement, the spherical surface of the workpiece is completely in contact with the arc surface of the grinding disc 3 to ensure grinding quality.

[0052] It should be noted that before grinding the workpiece, the first drive unit 57 is activated and the first lead screw 56 drives the two first sliders 55 to move away from each other, so that the inner side plate 51 and the outer side plate 52 move closer to each other, clamping and shaping the grinding disc 3 into a shape that fits the spherical contour of the workpiece, while the grinding disc 3 exposed at the notch 501 is the part to be ground later.

[0053] Then, the rod part of the workpiece to be ground is placed into the workpiece hole 115, so that the ball part of the workpiece is exposed. The clamping drive is controlled to drive the chuck 114 to clamp and fix the workpiece, and the fifth drive is controlled to drive the turntable 121 to rotate until the workpiece is in the grinding position.

[0054] Driven by the second driving component 131, the second lead screw 133 drives the second slider 134, and under the guidance and constraint of the second guide rod 135, the second slider 134 drives the support 122 to move to the right, so that the turntable 121 drives multiple indexing components 11 to move to the right synchronously. During the rightward movement, the third driving component 111 is activated to drive the chuck 113 to rotate the workpiece. The rotation axis of the workpiece intersects with the feed direction of the workpiece. Along the feed direction of the workpiece, the grinding disc 3 exposed by the notch 501 first rubs against the two ends of the spherical surface. As the workpiece gradually moves to the right, the grinding disc 3 gradually rubs against the front end of the spherical surface, thereby achieving the step-by-step grinding of the spherical surface and ensuring the grinding quality of the spherical surface.

[0055] After grinding multiple workpieces, when it is necessary to replace the exposed grinding disc 3 at the notch 501, simply activate the first drive component 57. The first lead screw 56 drives the two first sliders 55 to move closer to each other, so that the inner side plate 51 and the outer side plate 52 move away from each other, releasing the clamping and fixing of the grinding disc 3. At this time, under the drive of the fourth drive component 48, the grinding disc 3 rotates, causing the new grinding disc 3 to partially rotate to the notch 501 position, driving the first drive component 57 in the opposite direction, and finally realizing that the inner side plate 51 and the outer side plate 52 move closer to each other, shaping this part of the grinding disc 3 into a shape that fits the spherical contour of the workpiece.

[0056] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A spherical grinding processing apparatus, characterized in that, include: The indexing assembly (11) has a workpiece to be polished clamped and fixed at its output end. The indexing assembly (11) is used to drive the workpiece to rotate. Feed assembly (13), the output end of which is connected to the indexing assembly (11) via transmission. The feed assembly (13) is used to drive the workpiece located in the grinding position to reciprocate horizontally via the indexing assembly (11), wherein the rotation axis of the workpiece intersects with the feed direction of the workpiece. The grinding mechanism (4) includes a grinding disc (3) and a shaping component (5). The shaping component (5) is used to shape the grinding disc (3) located in the quasi-grinding position from a planar shape to a spherical shape that fits the workpiece. When the indexing component (11) drives the workpiece to move towards the shaped grinding disc (3) to the maximum displacement under the drive of the feed component (13), the grinding disc (3) and the spherical surface of the workpiece are rubbed together. The shaping component (5) includes an inner side plate (51), an outer side plate (52) and a shaping drive component. The grinding disc (3) is located between the inner side plate (51) and the outer side plate (52), and the inner side plate (51) is located on one side of the grinding surface of the grinding disc (3). The output end of the shaping drive component drives the inner side plate (51) and the outer side plate (52) respectively. The shaping drive component is used to drive the inner side plate (51) and the outer side plate (52) to move towards each other until the grinding disc (3) is clamped between the inner side plate (51) and the outer side plate (52). The inner side plate (51) has a notch (501), and the grinding disc (3) exposed at the notch (501) is used to rub against the spherical surface of the workpiece. The grinding disc (3) is sequentially sleeved on the waist drum roller (41) and the drive roller (44). The waist drum rollers (41) are arranged in pairs, and the two waist drum rollers (41) are located above and below the shaping component (5). The two waist drum rollers (41) and the drive roller (44) are rotatably mounted on the mounting plate (43). The input end of the drive roller (44) is connected to a fourth drive component (48).

2. The spherical grinding apparatus according to claim 1, characterized in that, The shaping drive assembly includes a first connecting rod (53), a second connecting rod (511), a first slider (55), a first lead screw (56), and a first drive member (57). The output end of the first drive member (57) is connected to the first lead screw (56). The two ends of the first lead screw (56) are rotatably connected to the first slide block (58). The two ends of the first lead screw (56) have opposite thread directions. The opposite threaded portions of the first lead screw (56) are threaded to the first sliders (55). The two first sliders (55) are respectively connected to first guide rods (59). Both ends are rotatably mounted on the first slide block (58). The side of one of the first sliders (55) is fixedly connected to the first cantilever (54), the first cantilever (54) is fixedly connected to the first connecting rod (53), and the end of the first connecting rod (53) away from the cantilever is fixedly connected to the inner side plate (51). The side of the other first slider (55) is fixedly connected to the second cantilever (510), the second cantilever (510) is fixedly connected to the second connecting rod (511), and the end of the second connecting rod (511) away from the cantilever is fixedly connected to the outer side plate (52). The sliding directions of the two first sliders (55) are opposite.

3. The spherical grinding apparatus according to claim 2, characterized in that, An adjusting component (46) is also provided on the mounting plate (43). An adjusting plate (47) is fixedly connected to the output end of the adjusting component (46). A driven roller (45) is rotatably mounted on the upper end of the adjusting plate (47). The lower end of the adjusting plate (47) is fastened to the mounting plate (43) by a locking bolt (49). The driven roller (45) is located between the driving roller (44) and the waist drum roller (41). The grinding disc (3) is sleeved on the driven roller (45).

4. The spherical grinding apparatus according to claim 3, characterized in that, The adjusting members (46) are arranged in pairs, and the paired adjusting members (46) are symmetrically arranged on both sides of the adjusting plate (47).

5. The spherical grinding apparatus according to claim 1, characterized in that, The indexing assembly (11) includes a third drive (111), a slant seat (112), a chuck (113), and jaws (114). The chuck (113) is rotatably mounted on the slant seat (112). The output end of the third drive (111) is connected to the chuck (113). The chuck (113) has a workpiece hole (115) for placing the rod part of the workpiece. Multiple jaws (114) are slidably mounted on the chuck (113). The multiple jaws (114) are circumferentially distributed around the workpiece hole (115). The input end of the jaws (114) is connected to a clamping drive, which is embedded in the chuck (113). The clamping drive is used to drive the jaws (114) to clamp and fix the shaft part of the workpiece.

6. The spherical grinding apparatus according to claim 5, characterized in that, A flange (117) is fixedly provided on one end edge of the chuck (113) near the inclined seat (112), and a limiting block (116) is fixedly provided on the inclined seat (112). The flange (117) is limited to the position between the protrusion of the limiting block (116) and the inclined seat (112).

7. The spherical grinding apparatus according to claim 6, characterized in that, The feeding assembly (13) includes a second driving member (131), a second slide block (132), a second lead screw (133), and a second slider (134). The output end of the second driving member (131) is connected to the second lead screw (133). Both ends of the second lead screw (133) are rotatably mounted on the second slide block (132). The second lead screw (133) is threadedly connected to the second slider (134). A second guide rod (135) is installed through the second slider (134). The second guide rod (135) is slidably connected to the second slider (134). Both ends of the second guide rod (135) are fixedly mounted on the second slide block (132).

8. The spherical grinding apparatus according to claim 7, characterized in that, A support (122) is fixedly installed on the second slide (132), and a turntable (121) is rotatably installed on the support (122). The input end of the turntable (121) is connected to a fifth driving member. Multiple indexing components (11) are provided on the side of the turntable (121) away from the fifth driving member. The inclined seat (112) is fixedly installed on the turntable (121).

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