Spherical polishing machine for precision parts

Abstract

The invention discloses a precision part spherical surface polishing machine, and belongs to the technical field of polishing machines, the precision part spherical surface polishing machine comprises a supporting table, a pressing mechanism, a polishing mechanism and an adjusting mechanism, the supporting table is provided with a supporting frame, the supporting frame is provided with a detection device used for detecting a polished product, and the supporting table is further provided with a connecting frame; the number of the connecting frames is three, and the connecting frame closest to the supporting frame is provided with a discharging roller used for discharging polished parts. According to the double-face polishing device, the two faces of a part can be polished at the same time, the directions of force applied to the part by the two flexible wheels are opposite, then the possibility that the part displaces in the polishing process is reduced, meanwhile, the upper face and the lower face of the part are polished at the same time, and the polishing efficiency can be improved; and the distance between the two flexible wheels is changed, so that parts with different thicknesses can be polished.

Description

Technical Field

[0001] The invention relates to the technical field of polishing machines, in particular to a spherical polishing machine for precision parts. Background Art

[0002] During the production process, the parts of the machine tool need to be polished to ensure that their surface is smooth and to avoid burrs on the surface, so that the parts of the machine tool can achieve their functions; Polishing machines are needed to polish the spherical surface of machine tool parts. Traditional polishing machines need to replace polishing tools of specific sizes according to the curvature radius of the workpiece. Existing polishing machines adjust the position of polishing tools in real time through distance adjustment mechanisms (such as cylinders and screws) to ensure that their swing radius is consistent with the curvature radius of the workpiece, achieve concentric swing, and improve polishing accuracy and efficiency. The existing precision parts spherical polishing machine still has the following technical problems when in use, such as: 1. When using the existing precision parts spherical polishing machine, it is necessary to polish one side of the part first, and then polish the other side of the part. This method is generally not conducive to improving the polishing efficiency of the parts; 2. The existing precision parts spherical polishing machine is not conducive to adjusting the position of the polishing mechanism according to the thickness of the parts when in use, which results in the existing precision parts spherical polishing machine being able to polish only parts of a single thickness, and thus not being conducive to polishing parts of different thicknesses; Therefore, a precision parts spherical polishing machine is needed to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a precision component spherical polishing machine to solve the problem in the above background technology that the existing precision component spherical polishing machine is not conducive to improving the polishing efficiency and cannot polish components of different thicknesses.

[0004] To achieve the above object, the present invention provides the following technical solutions: A precision parts spherical polishing machine comprises a support platform, a clamping mechanism, a polishing mechanism and an adjusting mechanism, wherein a support frame is arranged on the support platform, and a detection device for detecting polished products is installed on the support frame, a connecting frame is also installed on the support platform, and three groups of connecting frames are arranged, and a discharging roller for discharging polished parts is arranged on the connecting frame closest to the support frame, and the upper ends of the other two connecting frames are fixedly connected with connecting plates, and slide grooves are arranged on the connecting plates, and corresponding sliders are slidably connected in each of the slide grooves, a clamping mechanism is arranged between the two connecting plates on the connecting frame farthest from the support frame, and a polishing mechanism is arranged between the two connecting plates on the middle connecting frame, the clamping mechanism and the polishing mechanism are connected by an adjusting mechanism, and the two sliders opposite to each other in the vertical direction are connected in three phases by springs.

[0005] Preferably, the clamping mechanism includes a connecting block, a positioning pressure block, a connecting shaft and spring 2. There are two connecting blocks, and each connecting block is movably penetrated by a positioning pressure block. Spring 2 is installed between the middle part of the positioning pressure block and the connecting block, and connecting shafts are provided at the front and rear ends of each connecting block, and the connecting shafts are fixedly penetrated by the corresponding slider.

[0006] Preferably, the positioning pressing block is an I-shaped structure, and the ends of the two positioning pressing blocks close to each other are hollow, and the two positioning pressing blocks are symmetrically arranged to facilitate pressing the parts to be polished.

[0007] Preferably, the polishing mechanism includes a motor mounting frame, a displacement groove and a flexible wheel, the displacement groove is arranged on the upper surface of the support table, and the displacement groove is fixedly connected to a limit rod inside, the limit rod movably passes through the lower end protrusion of the motor mounting frame, and the lower end protrusion of the motor mounting frame is slidably connected to the displacement groove, a servo motor is installed on the upper end of the motor mounting frame, and a spring nested in the outer side of the limit rod is arranged between the lower end protrusion of the motor mounting frame and one side of the displacement groove, the two flexible wheels are arranged between the two connecting plates on the middle connecting frame, and the shaft ends of the two flexible wheels are respectively borne by bearings passing through corresponding sliders, and the shaft ends of the two flexible wheels close to the servo motor are connected to the shaft end of the servo motor through a belt drive assembly.

[0008] Preferably, the symmetry planes of the two flexible wheels, the symmetry planes of the two positioning blocks and the symmetry planes of the two connecting blocks are coplanar, which is convenient for stably pressing the machine tool parts to be polished and stably polishing the machine tool parts. The symmetry plane of the flexible wheel is coplanar with the horizontal tangent plane above the discharge roller, which is convenient for stably discharging the polished machine tool parts.

[0009] Preferably, the adjusting mechanism includes a driving frame and a cylinder, the cylinder is vertically mounted on the upper surface of the support platform, and the telescopic end of the cylinder is vertically connected to the lower end of the middle part of the transmission frame, pushing blocks are vertically fixed at both ends of the upper surface of the transmission frame, and the upper end of the pushing block is slidably connected to the inner surface of the guide groove, the guide groove is through-connected to the corresponding linkage block, and the linkage block is provided on each driving frame, an extrusion block is installed on the inner side surface of the driving frame, and the extrusion block is slidably connected to the corresponding slider, and the linkage block close to the motor mounting frame is fixedly connected to the motor mounting frame, so that the motor mounting frame can move synchronously with the linkage block.

[0010] Preferably, a strip-shaped through groove is provided at the upper end of the connecting plate, which is used for engaging and slidingly connecting with the hook-shaped structure at the upper end of the driving frame to ensure the stability of the installation of the driving frame.

[0011] Preferably, the portion where the slider contacts the extrusion block is an arc-shaped structure, and the extrusion block is in the shape of a right-angled triangular prism.

[0012] Preferably, the belt transmission assembly is a triangular structure, so that when the motor mounting frame is away from the flexible wheel, the two flexible wheels are driven to approach each other.

[0013] Preferably, the guide groove is a right-angled trapezoid, and its hypotenuse is in contact and sliding connection with the corresponding upper end of the pushing block.

[0014] Compared with the prior art, the invention has the following beneficial effects: the precision component spherical polishing machine can polish both sides of the component at the same time, and the forces applied by the two flexible wheels to the component are in opposite directions, thereby reducing the possibility of displacement of the component during the polishing process. Polishing the upper and lower surfaces of the component at the same time can also improve the polishing efficiency. In addition, the distance between the two flexible wheels can be changed by the extension and contraction of the cylinder, thereby polishing components of different thicknesses: 1. Connecting two flexible wheels to the servo motor through a belt drive assembly allows the two flexible wheels to rotate in the same direction under the action of the servo motor. Since the two flexible wheels polish the upper and lower surfaces of the parts respectively, the forces applied by the two flexible wheels to the parts are in opposite directions, which greatly reduces the problem of displacement of the parts when polishing them. In addition, polishing the upper and lower surfaces of the parts at the same time can improve the polishing efficiency; 2. The push block can be moved in the guide groove by the extension and retraction of the cylinder, thereby driving the driving frame to move. During the movement of the driving frame, the slider can be squeezed by the squeezing block to make the two sliders opposite to each other in the vertical direction approach each other. When the squeezing block no longer squeezes the slider, the two sliders opposite to each other in the vertical direction can be moved away from each other by spring three, thereby adjusting the distance between the two flexible wheels, so that the polishing machine can polish parts of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of point A; Figure 3 It is a schematic diagram of the explosion structure of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of point B in the middle; Figure 6 It is a partial cross-sectional structural schematic diagram of the present invention; Figure 7 For the present invention Figure 6 The schematic diagram of the enlarged structure of point C in the middle; Figure 8 This is a bottom view of the structure of the positioning block of the present invention; Fig. 9 It is a partial cross-sectional structural schematic diagram of the driving frame of the present invention; Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure at point D.

[0016] In the figure: 1. support table; 2. support frame; 3. detection equipment; 4. connecting frame; 5. drive frame; 6. motor mounting frame; 7. servo motor; 8. cylinder; 9. connecting block; 10. positioning block; 11. extrusion block; 12. connecting plate; 13. connecting shaft; 14. slider; 15. discharge roller; 16. linkage block; 17. belt drive assembly; 18. displacement groove; 19. limit rod; 20. spring one; 21. slide groove; 22. flexible wheel; 23. spring two; 24. guide groove; 25. push block; 26. transmission frame; 27. spring three. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 10 , the present invention provides the following technical solutions: Embodiment 1: In order to solve the problem that the spherical polishing machine of precision parts cannot polish both sides of the parts at the same time, thus resulting in poor efficiency, the following technical solution is provided, specifically, a spherical polishing machine of precision parts, including a support table 1, a clamping mechanism, a polishing mechanism and an adjusting mechanism. A support frame 2 is provided on the support table 1, and a detection device 3 for detecting the polished product is installed on the support frame 2. A connecting frame 4 is also installed on the support table 1, and the connecting frame 4 is provided with three groups. The connecting frame 4 closest to the support frame 2 is provided with a discharge roller 15 for discharging the polished parts. The upper ends of the other two connecting frames 4 are fixedly connected with a connecting plate 12, and a slide groove 21 is provided on the connecting plate 12. Each slide groove 21 is slidably connected with a corresponding slider 14. A clamping mechanism is provided between the two connecting plates 12 on the connecting frame 4 farthest from the support frame 2, and a polishing mechanism is provided between the two connecting plates 12 on the middle connecting frame 4. The two sliders 14 opposite to each other in the vertical direction are connected by a spring three 27.

[0019] The clamping mechanism includes a connecting block 9, a positioning block 10, a connecting shaft 13 and a spring 23. There are two connecting blocks 9, and each connecting block 9 is movably penetrated by a positioning block 10. A spring 23 is installed between the middle part of the positioning block 10 and the connecting block 9. A connecting shaft 13 is provided at both ends of each connecting block 9, and the connecting shaft 13 is fixedly penetrated by the corresponding slider 14.

[0020] The positioning pressing block 10 is an I-shaped structure, and the ends of the two positioning pressing blocks 10 close to each other are hollow, and the two positioning pressing blocks 10 are symmetrically arranged to facilitate pressing the parts to be polished.

[0021] The polishing mechanism includes a motor mounting frame 6, a displacement groove 18 and a flexible wheel 22. The displacement groove 18 is arranged on the upper surface of the support platform 1, and the interior of the displacement groove 18 is fixedly connected to a limit rod 19, the limit rod 19 movably penetrates the lower end protrusion of the motor mounting frame 6, and the lower end protrusion of the motor mounting frame 6 is slidably connected to the displacement groove 18, a servo motor 7 is installed on the upper end of the motor mounting frame 6, and a spring 20 nested in the outer side of the limit rod 19 is arranged between the lower end protrusion of the motor mounting frame 6 and one side of the displacement groove 18, two flexible wheels 22 are arranged between two connecting plates 12 on the middle connecting frame 4, and the shaft ends of the two flexible wheels 22 are respectively borne by bearings penetrating the corresponding sliders 14, and the shaft ends of the two flexible wheels 22 close to the servo motor 7 are connected to the shaft ends of the servo motor 7 through the belt transmission assembly 17, and when the servo motor 7 is running, the belt transmission assembly 17 is used to drive the servo motor 7. The two flexible wheels 22 can rotate in the same direction, and the two flexible wheels 22 respectively grind and polish the two sides of the parts, so the forces applied by the two flexible wheels 22 to the parts are in opposite directions, which avoids displacement of the parts during the polishing process and ensures the stability of the polishing process. By grinding and polishing both sides of the parts at the same time, the efficiency of grinding and polishing can also be improved. The symmetric surfaces of the two flexible wheels 22, the symmetric surfaces of the two positioning blocks 10 and the symmetric surfaces of the two connecting blocks 9 are coplanar, which is convenient for stably pressing the machine tool parts to be polished and stably polishing the machine tool parts. The symmetric surface of the flexible wheel 22 is coplanar with the horizontal tangent surface above the discharge roller 15, which is convenient for stably discharging the polished machine tool parts. The belt drive assembly 17 is a triangular structure, so that when the motor mounting frame 6 is away from the flexible wheel 22, the two flexible wheels 22 are driven to approach each other.

[0022] Embodiment 2: In order to solve the problem that the previous precision parts spherical polishing machine cannot polish parts of different thicknesses, the following technical solution is provided, specifically, the clamping mechanism and the polishing mechanism are connected by an adjustment mechanism.

[0023] The adjusting mechanism comprises a driving frame 5 and a cylinder 8. The cylinder 8 is vertically mounted on the upper surface of the supporting platform 1, and the telescopic end of the cylinder 8 is vertically connected to the lower end of the middle part of the transmission frame 26. Pushing blocks 25 are vertically fixed to both ends of the upper surface of the transmission frame 26, and the upper ends of the pushing blocks 25 are slidably connected to the inner surfaces of the guide grooves 24. The guide grooves 24 are connected through and connected to the corresponding linkage blocks 16, and the linkage blocks 16 are arranged on each driving frame 5. An extrusion block 11 is mounted on the inner side surface of the driving frame 5, and the extrusion block 11 is slidably connected to the corresponding slider 14. The linkage block 16 close to the motor mounting frame 6 is fixedly connected to the motor mounting frame 6, so that the motor mounting frame 6 moves synchronously with the linkage block 16. During the extension and retraction process of the cylinder 8, the spring three 27 is cooperated to make the pushing block 25 squeeze the linkage block 16 when moving upward, thereby driving the driving frame 5 to move horizontally, and then driving the motor mounting frame 6 to move synchronously. During the horizontal movement of the driving frame 5, the two sliders 14 in vertical relative positions can be brought close to each other by the squeezing of the squeezing block 11 on the slider 14, which can not only make the two flexible wheels 22 close to each other, so as to polish both sides of the parts at the same time, but also make the two positioning pressing blocks 10 close to each other, so as to facilitate the clamping of the two sides of the edge of the parts. When the pushing block 25 moves down, the slider 14 can be reset by the spring three 27, thereby releasing the parts to facilitate the discharge of the polished parts. The upper end of the connecting plate 12 is provided with a strip-shaped through groove, which is used to engage and slide with the hook-shaped structure at the upper end of the driving frame 5 to ensure the stability of the installation of the driving frame 5. The contact portion between the slider 14 and the squeezing block 11 is an arc structure, and the squeezing block 11 is a right-angled triangular prism, and the guide groove 24 is a right-angled trapezoid, and its hypotenuse is in contact and sliding connection with the corresponding upper end of the pushing block 25.

[0024] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision component spherical polishing machine, comprising a support table (1), a clamping mechanism, a polishing mechanism and an adjustment mechanism, characterized in that: The support platform (1) is provided with a support frame (2), and a detection device (3) for detecting polished products is installed on the support frame (2). The support platform (1) is also provided with a connecting frame (4), and three groups of connecting frames (4) are provided. The connecting frame (4) closest to the support frame (2) is provided with a discharge roller (15) for discharging polished parts. The upper ends of the other two connecting frames (4) are fixedly connected with connecting plates (12), and the connecting plates (12) are provided with slide grooves (21). Each slide groove (21) is slidably connected with a corresponding slider (14). A clamping mechanism is provided between the two connecting plates (12) on the connecting frame (4) farthest from the support frame (2), and a polishing mechanism is provided between the two connecting plates (12) on the middle connecting frame (4). The clamping mechanism and the polishing mechanism are connected by an adjustment mechanism, and the two sliders (14) opposite to each other in a vertical direction are connected by spring three (27).

2. A precision parts spherical polishing machine according to claim 1, characterized in that: The clamping mechanism comprises a connecting block (9), a positioning pressing block (10), a connecting shaft (13) and a second spring (23). Two connecting blocks (9) are provided, and each connecting block (9) is provided with a positioning pressing block (10) that movably penetrates the connecting block (9). A second spring (23) is installed between the middle of the positioning pressing block (10) and the connecting block (9). A connecting shaft (13) is provided at both ends of each connecting block (9), and the connecting shaft (13) is fixedly provided to penetrate the corresponding sliding block (14).

3. A precision parts spherical polishing machine according to claim 2, characterized in that: The positioning pressing block (10) is an I-shaped structure, and the ends of the two positioning pressing blocks (10) close to each other are hollowed out, and the two positioning pressing blocks (10) are symmetrically arranged so as to press the parts to be polished.

4. A precision parts spherical polishing machine according to claim 3, characterized in that: The polishing mechanism comprises a motor mounting frame (6), a displacement groove (18) and a flexible wheel (22); the displacement groove (18) is arranged on the upper surface of the support platform (1), and a limit rod (19) is fixedly connected inside the displacement groove (18); the limit rod (19) movably penetrates a lower end protrusion of the motor mounting frame (6), and the lower end protrusion of the motor mounting frame (6) is slidably connected to the displacement groove (18); a servo motor (7) is installed at the upper end of the motor mounting frame (6), and the motor A spring (20) is provided between a lower end protrusion of the mounting frame (6) and one side of the displacement groove (18), and is nested on the outside of the limit rod (19). The two flexible wheels (22) are provided between the two connecting plates (12) on the intermediate connecting frame (4), and the shaft ends of the two flexible wheels (22) are respectively supported by bearings passing through corresponding sliders (14). The shaft ends of the two flexible wheels (22) close to the servo motor (7) are connected to the shaft ends of the servo motor (7) through a belt transmission assembly (17).

5. The precision parts spherical polishing machine according to claim 4, characterized in that: The symmetric surfaces of the two flexible wheels (22), the symmetric surfaces of the two positioning pressure blocks (10), and the symmetric surfaces of the two connecting blocks (9) are coplanar, which facilitates stable pressing of the machine tool parts to be polished and stable polishing of the machine tool parts. The symmetric surface of the flexible wheel (22) is coplanar with the horizontal tangent surface above the discharge roller (15), which facilitates stable discharge of the polished machine tool parts.

6. A precision parts spherical polishing machine according to claim 5, characterized in that: The adjustment mechanism comprises a drive frame (5) and a cylinder (8), wherein the cylinder (8) is vertically mounted on the upper surface of the support platform (1), and the telescopic end of the cylinder (8) is vertically connected to the lower end of the middle part of the transmission frame (26), and push blocks (25) are vertically fixed to both ends of the upper surface of the transmission frame (26), and the upper end of the push block (25) is slidably connected to the inner surface of the guide groove (24), and the guide groove (24) is connected to the corresponding linkage block (16), and the linkage block (16) is arranged on each drive frame (5), and an extrusion block (11) is installed on the inner side surface of the drive frame (5), and the extrusion block (11) is slidably connected to the corresponding slider (14), and the linkage block (16) close to the motor mounting frame (6) is fixedly connected to the motor mounting frame (6), so that the motor mounting frame (6) can move synchronously with the linkage block (16).

7. A precision parts spherical polishing machine according to claim 6, characterized in that: The upper end of the connecting plate (12) is provided with a strip-shaped through groove, which is used to engage and slide with the hook-shaped structure at the upper end of the driving frame (5), thereby ensuring the stability of the installation of the driving frame (5).

8. The precision parts spherical polishing machine according to claim 7, characterized in that: The portion where the sliding block (14) contacts the extrusion block (11) is an arc-shaped structure, and the extrusion block (11) is in the shape of a right-angled triangular prism.

9. A precision parts spherical polishing machine according to claim 8, characterized in that: The belt drive assembly (17) is a triangular structure, so that when the motor mounting frame (6) is away from the flexible wheels (22), the two flexible wheels (22) are driven to move closer to each other.

10. The precision parts spherical polishing machine according to claim 9, characterized in that: The guide groove (24) is a right-angled trapezoid, and its oblique side is in contact and sliding connection with the upper end of the corresponding push block (25).

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