Cylindrical surface grinding device for ball screw machining

Abstract

The invention relates to the technical field of lead screw machining, in particular to a ball screw machining cylindrical surface grinding device which comprises a base and a sliding table fixedly connected to the top of the base, a centering type fixing mechanism is arranged on the sliding table, a sweeping type groove grinding mechanism is arranged on the base, and the sweeping type groove grinding mechanism comprises an annular fixing base. A rotating ring is mounted on the annular fixing seat, and a plurality of arc-shaped polishing blocks combined into a ring shape are mounted on the inner wall of the rotating ring through bolts; according to the ball screw grinding device, self-adaptive centering clamping of ball screws of different sizes is achieved through the centering type fixing mechanism, auxiliary elastic clamping of a grinding area is achieved through the auxiliary cylindrical surface grinding mechanism, the grinding stability is further improved, and the cleaning type groove grinding mechanism is combined, so that the comprehensive grinding effect of the ball screws is achieved, and meanwhile the grinding efficiency of the ball screws is improved. And in addition, auxiliary air cooling treatment can be carried out on the grinding area.

Description

Technical Field

[0001] The invention relates to the technical field of screw processing, and in particular to a cylindrical surface grinding device for ball screw processing. Background Art

[0002] As the core transmission element in tool machinery and precision machinery, ball screws have excellent performance in that they can accurately convert rotational motion into linear motion, or efficiently convert torque into axial repetitive force. This conversion process is not only highly precise and reversible, but also extremely efficient. Coupled with their extremely low friction resistance, ball screws are widely used in various industrial equipment and precision instruments.

[0003] For example, in the prior art, there is a cylindrical grinding device for ball screw processing with publication number CN118342343A. The device can achieve comprehensive grinding of the cylindrical surface and groove of the ball screw through the cooperation of a positioning mechanism, a driving mechanism and a grinding mechanism. However, when grinding a longer ball screw, due to the lack of an effective auxiliary clamping structure for the grinding area, the ball screw is prone to shaking during grinding, thereby affecting the grinding accuracy. In addition, the grinding debris on the surface of the ball screw cannot be cleaned synchronously during the grinding process, resulting in an additional cleaning step after grinding, thereby reducing the overall processing efficiency.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a cylindrical grinding device for ball screw machining to solve the above-mentioned technical defects.

[0006] The object of the present invention can be achieved by the following technical scheme: a cylindrical grinding device for ball screw processing, comprising a base, and a slide fixedly connected to the top of the base, the slide is provided with a centering fixing mechanism, the base is provided with a cleaning groove grinding mechanism, the cleaning groove grinding mechanism comprises an annular fixing seat, a rotating ring is installed on the annular fixing seat, and a plurality of arc-shaped grinding blocks combined into a ring are bolted on the inner wall of the rotating ring;

[0007] An auxiliary cylindrical grinding mechanism is arranged on the top of the annular fixed seat, and the auxiliary cylindrical grinding mechanism includes a fixed frame, an adjusting block is slidably installed in the fixed frame, and mounting plates are symmetrically fixedly connected on both sides of the adjusting block, an auxiliary clamping seat and an auxiliary clamping plate are arranged on the mounting plate, and auxiliary rollers and grinding rollers are rotatably installed on the auxiliary clamping plate.

[0008] Preferably, the centering fixing mechanism includes a linear module fixedly mounted on the top of the slide, a slide seat sliding with the slide is mounted on the linear module, a fixed clamp is fixedly mounted on the slide, and a movable clamp with the same structure as the fixed clamp is slidably mounted, and a screw rod threadedly connected to the movable clamp is rotatably mounted on the fixed clamp and the slide.

[0009] Preferably, a rotating seat is rotatably installed on the fixed clamp, and a conical groove is opened on one side of the rotating seat, and multiple groups of L-shaped clamps are slidably installed on the annular side wall of the conical groove, a first spring is fixedly connected between the L-shaped clamp and the rotating seat, and a first motor for driving the rotating seat to rotate is fixedly installed on the fixed clamp.

[0010] Preferably, a rotating table is rotatably mounted on the top of the base, and a first electric push rod and telescopic sleeve rods located on both sides of the first electric push rod are fixedly mounted between the top of the rotating table and the annular fixing seat.

[0011] Preferably, a wind wheel is fixedly mounted on the annular outer wall of the rotating ring and inside the annular fixing seat, an airflow pipe running through the interior is installed on the annular fixing seat, and annular cleaning brushes are fixedly mounted on both side end surfaces of the rotating ring.

[0012] Preferably, the tops of both sides of the annular fixing seat are fixedly connected with air outlet pipes communicating with the interior thereof, and the ends of the air outlet pipes are fixedly connected with U-shaped pipes, and the U-shaped pipes are provided with a plurality of air outlet holes.

[0013] Preferably, the top of the annular fixing seat is rotatably connected to a horizontal plate fixed to the fixing frame, and guide rods fixed to the base are slidably provided on both sides of the horizontal plate, a second electric push rod is installed on the top of the fixing frame, and the piston rod end of the second electric push rod is fixedly connected to the adjusting block.

[0014] Preferably, the top of the auxiliary clamp seat is fixedly connected to a guide rod slidably connected to the corresponding mounting plate, and a second spring located outside the guide rod, the bottom of the auxiliary clamp seat is fixedly connected to a clamp seat, and a plurality of auxiliary balls are rollingly embedded on the arc surface of the clamp seat.

[0015] Preferably, a gear is rotatably installed on the top of the auxiliary clamping seat, an upper tooth plate that slides with the auxiliary clamping seat is connected to the mounting plate, a lower tooth plate that slides with the auxiliary clamping seat is connected to the auxiliary clamping plate through an L-shaped rod, the gear is meshed with the upper tooth plate and the lower tooth plate, and a second motor for driving the grinding roller to rotate is installed on the auxiliary clamping plate.

[0016] The beneficial effects of the present invention are as follows:

[0017] (1) In the present invention, the two sides of the ball screw are firstly brought into contact with the L-shaped clamping blocks on the corresponding rotating seat by moving the movable clamping table, and the L-shaped clamping blocks are guided by the rotating seat to cause the multiple groups of L-shaped clamping blocks to move relative to each other, so as to achieve the effect of adaptive centering clamping for ball screws of different sizes. Then, combined with the deflection and lifting of the annular fixed seat, the movement of the sliding seat and the rotation of the rotating seat, the comprehensive grinding effect of ball screws of different sizes can be achieved;

[0018] (2) In the present invention, a cleaning groove grinding mechanism is provided, and the high-speed airflow is used to drive the wind wheel to carry the rotating ring to rotate, which not only realizes the rotation of the arc-shaped grinding block to grind the groove of the ball screw, but also drives the annular cleaning brushes on both sides to rotate, so as to realize the synchronous cleaning of the grinding debris on the surface of the ball screw. The high airflow blown into the annular fixed seat is injected into the U-shaped tube through the air outlet pipe, and then blown onto the ball screw through a plurality of air outlet holes, which can not only perform secondary auxiliary cleaning of the grinding debris, but also perform auxiliary air cooling treatment on the polished ball screw at the same time.

[0019] (3) In the present invention, the auxiliary cylindrical grinding mechanism is provided to assist each other. Through the downward movement of the mounting plate, the auxiliary balls on the auxiliary clamping seat are first prompted to contact the ball screw. Then, the meshing toothed plate and the gear are utilized to prompt the auxiliary clamping plate to rise, so that the grinding roller and the auxiliary roller are adaptively contacted with the cylindrical surfaces of the ball screws of different sizes. In combination with the auxiliary balls, the grinding areas of the ball screws of different sizes are adaptively elastically clamped, thereby achieving the cylindrical grinding of the ball screw and improving the stability of the ball screw during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings;

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the centering fixing mechanism of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the rotating seat of the present invention;

[0024] Figure 4 It is a schematic diagram of the disassembly of the rotating seat of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the sweeping groove grinding mechanism of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the annular fixing seat of the present invention;

[0027] Figure 7 It is a schematic structural diagram of the rotating ring of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the auxiliary cylindrical grinding mechanism of the present invention;

[0029] Fig. 9 It is a schematic diagram of the cooperation between the auxiliary clamping seat and the auxiliary clamping plate of the present invention.

[0030] Legend:

[0031] 1. Base; 11. Slide;

[0032] 2. Centering fixing mechanism; 21. Linear module; 22. Sliding seat; 23. Fixed clamping platform; 24. Movable clamping platform; 25. Screw rod; 26. Rotating seat; 27. L-shaped clamping block; 28. First spring;

[0033] 3. Sweeping groove grinding mechanism; 31. Annular fixed seat; 32. Rotating ring; 33. Arc-shaped grinding block; 34. Rotating table; 35. Wind wheel; 36. Air flow pipe; 37. Annular cleaning brush; 38. Air outlet pipe;

[0034] 4. Auxiliary cylindrical grinding mechanism; 41. Fixed frame; 42. Adjustment block; 43. Mounting plate; 44. Auxiliary clamping seat; 45. Auxiliary clamping plate; 46. Auxiliary roller; 47. Grinding roller; 48. Cross plate; 49. Second spring; 410. Auxiliary ball; 411. Gear; 412. Upper tooth plate; 413. Lower tooth plate. DETAILED DESCRIPTION

[0035] 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.

[0036] Example 1: Please refer to Figure 1-Figure 9 As shown, when grinding a long ball screw, due to the lack of an effective auxiliary clamping structure for the grinding area, the ball screw is prone to shaking during grinding, thereby affecting the grinding accuracy. The following solution can be used to solve the problem;

[0037] In this embodiment, a cylindrical grinding device for ball screw processing includes a base 1 and a slide 11 fixedly connected to the top of the base 1. A centering fixing mechanism 2 is provided on the slide 11 to achieve an adaptive centering clamping effect for ball screws of different sizes. A cleaning groove grinding mechanism 3 is provided on the base 1 to grind the thread groove of the ball screw.

[0038] The cleaning groove grinding mechanism 3 includes an annular fixing seat 31, a rotating ring 32 is installed on the annular fixing seat 31, and a plurality of arc-shaped grinding blocks 33 combined into an annular shape are bolted on the inner wall of the rotating ring 32. Through the detachably installed arc-shaped grinding blocks 33, matching arc-shaped grinding blocks 33 can be installed on the rotating ring 32 according to the pitch of the ball screw to be ground, thereby realizing precise grinding of different ball screws;

[0039] An auxiliary cylindrical grinding mechanism 4 is arranged on the top of the annular fixed seat 31, and the auxiliary cylindrical grinding mechanism 4 comprises a fixed frame 41, an adjusting block 42 is slidably installed in the fixed frame 41, and mounting plates 43 are symmetrically fixedly connected on both sides of the adjusting block 42, an auxiliary clamping seat 44 and an auxiliary clamping plate 45 are arranged on the mounting plate 43, and an auxiliary roller 46 and a grinding roller 47 are rotatably installed on the auxiliary clamping plate 45;

[0040] The cross-section of one side of the auxiliary roller 46 and the grinding roller 47 are both conical structures to prevent the auxiliary roller 46 from affecting the lateral horizontal movement of the ball screw after contacting the grinding roller 47 and the ball screw. The auxiliary roller 46 can be replaced by a ball-contact ball screw to further avoid scratches on the surface of the ball screw.

[0041] The centering fixing mechanism 2 includes a linear module 21 fixedly mounted on the top of the slide 11, a slide 22 sliding with the slide 11 is mounted on the linear module 21, the linear module 21 carries the slide 22 to move slowly in a horizontal straight line, a fixed clamping platform 23 is fixedly mounted on the slide 22, and a movable clamping platform 24 with the same structure as the fixed clamping platform 23 is slidably mounted, the fixed clamping platform 23 and the movable clamping platform 24 are used to clamp the ball screw, and a screw rod 25 threadedly connected to the movable clamping platform 24 is rotatably mounted on the fixed clamping platform 23 and the slide 22;

[0042] One end of the screw rod 25 passes through the slide 22 and is equipped with a torsion wheel. The ball screw to be polished is placed between the movable clamping platform 24 and the fixed clamping platform 23. The torsion wheel is rotated to drive the screw rod 25 to rotate, and the screw rod 25 drives the movable clamping platform 24 to move close to the fixed clamping platform 23 to center the ball screw. The outer side of the screw rod 25 is located between the movable clamping platform 24 and the slide 22, and a telescopic protective tube is fixedly installed between the movable clamping platform 24 and the fixed clamping platform 23 to prevent grinding debris from contacting the screw rod 25 and thereby affecting the movement of the slide 22.

[0043] A rotating seat 26 is rotatably mounted on the fixed clamping platform 23, and a conical groove is provided on one side of the rotating seat 26. A plurality of groups of L-shaped clamping blocks 27 are slidably mounted on the annular side wall of the conical groove. The cross section of one side of the L-shaped clamping block 27 is an arc-shaped structure, which is used to improve the clamping effect of the ball screw. A connecting frame is slidably connected between the plurality of groups of L-shaped clamping blocks 27, so that only a single L-shaped clamping block 27 is initially in contact with the ball screw and pushes the L-shaped clamping block 27 to move. With the cooperation of the connecting frame, the plurality of L-shaped clamping blocks 27 can be caused to move synchronously, thereby achieving the effect of adaptive centering clamping.

[0044] The screw rod 25 drives the movable clamping platform 24 to move close to the fixed clamping platform 23, so that the two ends of the ball screw rod 25 are respectively in contact with the L-shaped clamping blocks 27 at the bottom of the corresponding rotating seat 26. Then, as the movable clamping platform 24 moves, the L-shaped clamping blocks 27 on both sides slide in the rotating seat 26, and in combination with the connecting frame, the remaining L-shaped clamping blocks 27 are linked to move synchronously. Through the guidance of the side wall of the conical groove, multiple L-shaped clamping blocks 27 are prompted to move relative to each other, and the ball screw is adaptively centered and clamped. A first spring 28 is fixedly connected between the L-shaped clamping block 27 and the rotating seat 26.

[0045] A convex block is fixedly connected to the L-shaped clamp 27, and a concave groove is provided on the conical groove for sliding with the convex block. The convex block and the concave groove are used to achieve a stable sliding installation of the L-shaped clamp 27. A first spring 28 is installed between one side of the convex block and the concave groove, and is used to move the movable clamp 24 away from the fixed clamp 23, so that the L-shaped clamp 27 is reset after the L-shaped clamp 27 is separated from the ball screw. A first motor for driving the rotating seat 26 to rotate is fixedly installed on the fixed clamp 23, and is used to drive the clamped and fixed ball screw to rotate, thereby realizing the grinding process of the spiral groove by the arc grinding block 33.

[0046] A rotating table 34 is rotatably installed on the top of the base 1. The rotating table 34 is used to realize the deflection of the angle of the annular fixed seat 31. According to the thread inclination angle of the ball screw to be polished, the rotating arc-shaped polishing block 33 can be perfectly engaged in the thread groove to avoid the problem of offset polishing. The deflection angle is adjustable to realize the polishing of thread grooves with different thread inclination angles, thereby improving the use range of the device.

[0047] A first electric push rod and telescopic sleeves are fixedly installed between the top of the rotating table 34 and the annular fixed seat 31. The first electric push rod is used to adjust the height of the annular fixed seat 31, so that the arc-shaped grinding block 33 can adaptively contact the threaded grooves of ball screws of different sizes. The telescopic sleeves are used to achieve the stability of the lifting and lowering of the annular fixed seat 31.

[0048] The top of the annular fixed seat 31 is rotatably connected to a transverse plate 48 fixed to the fixed frame 41, and guide rods fixed to the base 1 are slidably provided on both sides of the transverse plate 48. The transverse plate 48 and the guide rods are used to always keep the two sets of mounting plates 43 parallel to the clamped ball screws, thereby ensuring subsequent precise auxiliary clamping. A second electric push rod is installed on the top of the fixed frame 41, and the piston rod end of the second electric push rod is fixedly connected to the adjustment block 42. The second electric push rod is used to adjust the height position of the two sets of mounting plates 43.

[0049] A guide rod slidably connected to the corresponding mounting plate 43 is fixedly connected to the top of the auxiliary clamping seat 44, which is used to increase the stability of the spacing adjustment between the auxiliary clamping seat 44 and the mounting plate 43, and a second spring 49 located outside the guide rod is used to promote the elastic clamping between the auxiliary ball 410 and the ball screw, and in combination with the auxiliary roller 46 and the grinding roller 47, to achieve the elastic auxiliary clamping effect of ball screws of different sizes;

[0050] The bottom of the auxiliary clamping seat 44 is fixedly connected to a clamping seat, and a plurality of auxiliary balls 410 are rollingly embedded on the arc surface of the clamping seat. The clamping seat is installed with a plurality of auxiliary balls 410 distributed in an arc shape, and the adjusting block 42 is driven to move downward by the second electric push rod. The adjusting block 42 drives the auxiliary clamping seat 44 to move downward through the mounting plate 43 and the second spring 49, so that the auxiliary balls 410 on the clamping seat are in contact with the ball screw.

[0051] A gear 411 is rotatably mounted on the top of the auxiliary clamp seat 44, an upper tooth plate 412 that slides with the auxiliary clamp seat 44 is connected to the mounting plate 43, a lower tooth plate 413 that slides with the auxiliary clamp seat 44 is connected to the auxiliary clamp plate 45 through an L-shaped rod, and the gear 411 is meshed with the upper tooth plate 412 and the lower tooth plate 413;

[0052] As the adjusting block 42 moves downward, the mounting plate 43 compresses the second spring 49 and carries the upper tooth plate 412 to move in the auxiliary clamp seat 44, causing the gear 411 to rotate, driving the lower tooth plate 413 meshing therewith to move upward. The lower tooth plate 413 carries the auxiliary clamp plate 45 upward through the L-shaped rod, causing the auxiliary roller 46 and the grinding roller 47 to contact the cylindrical surface of the ball screw, and combined with the auxiliary ball 410 and the second spring 49, auxiliary elastic clamping of the ball screw grinding area is realized. A second motor for driving the grinding roller 47 to rotate is installed on the auxiliary clamp plate 45.

[0053] Example 2: Please refer to Figure 5-Figure 7 As shown, the problem that the grinding debris on the surface of the ball screw cannot be cleaned synchronously during the grinding process, resulting in the need for additional cleaning steps after grinding, can be solved by the following solution;

[0054] In this embodiment, a wind wheel 35 is fixedly installed on the annular outer wall of the rotating ring 32 and located inside the annular fixed seat 31. An airflow pipe 36 penetrating the annular fixed seat 31 is installed. A high-speed airflow is blown into the annular fixed seat 31 through the airflow pipe 36. The high-speed airflow contacts the wind wheel 35 to drive the rotating ring 32 carrying the arc-shaped grinding block 33 to rotate, and the groove of the ball screw is polished. Annular cleaning brushes 37 are fixedly installed on both side end surfaces of the rotating ring 32.

[0055] The first electric push rod carries the annular fixed seat 31 to move downward, so that the arc-shaped grinding block 33 contacts the groove on one side of the ball screw, and at the same time, the annular cleaning brushes 37 on both sides of the rotating ring 32 contact the ball screw. With the help of the rotation of the rotating ring 32, the annular cleaning brushes 37 on both sides are synchronously driven to rotate, and the annular cleaning brushes 37 clean the debris polished on the surface of the ball screw 25.

[0056] The tops of both sides of the annular fixing seat 31 are fixedly connected with air outlet pipes 38 which are communicated with the interior thereof, and the ends of the air outlet pipes 38 are fixedly connected with U-shaped pipes which have a plurality of air outlet holes. The high airflow blown into the annular fixing seat 31 is injected into the U-shaped pipe through the air outlet pipes 38, and then blown onto the ball screw 25 through the plurality of air outlet holes, so as to perform secondary auxiliary cleaning of the grinding debris and perform auxiliary air cooling treatment on the ground ball screw.

[0057] Example 3: Please refer to Figure 1-Figure 9 As shown, the present invention also provides a method for using a cylindrical grinding device for ball screw machining, comprising the following steps:

[0058] Step 1: According to the pitch and inclination of the ball screw to be polished, a matching arc-shaped polishing block 33 is installed on the rotating ring 32, and the annular fixing seat 31 is deflected by the rotating table 34 so that the arc-shaped polishing block 33 can engage with the groove of the ball screw, and the ball screw to be polished is placed between the movable clamping table 24 and the fixed clamping table 23, and the torsion wheel is rotated to drive the screw 25 to rotate, so as to center and clamp the ball screw;

[0059] Step 2: The screw rod 25 drives the movable clamping platform 24 to move close to the fixed clamping platform 23, so that the two ends of the ball screw rod 25 are respectively in contact with the L-shaped clamping blocks 27 at the bottom of the corresponding rotating seat 26, and then with the movement of the movable clamping platform 24, the L-shaped clamping blocks 27 on both sides slide in the rotating seat 26, and in conjunction with the connecting frame, the remaining L-shaped clamping blocks 27 are linked to move synchronously, and the multiple L-shaped clamping blocks 27 are guided by the side walls of the conical groove to move relative to each other, so as to perform adaptive centering clamping and fixing of the ball screw;

[0060] Step 3: The first electric push rod carries the annular fixing seat 31 to move downward, so that the arc-shaped grinding block 33 contacts the groove on one side of the ball screw, and the annular cleaning brushes 37 on both sides of the rotating ring 32 contact the ball screw. Then, the second electric push rod drives the adjustment block 42 to move downward, and the adjustment block 42 causes the auxiliary clamping seat 44 to move downward through the mounting plate 43 and the first spring 28, so that the auxiliary ball 410 on the clamping seat contacts the ball screw.

[0061] Step 4: As the adjusting block 42 moves downward, the mounting plate 43 compresses the second spring 49 and carries the upper toothed plate 412 to move in the auxiliary clamping seat 44, causing the gear 411 to rotate, driving the lower toothed plate 413 meshing therewith to move upward, and the lower toothed plate 413 carries the auxiliary clamping plate 45 upward through the L-shaped rod, causing the auxiliary roller 46 and the grinding roller 47 to contact the cylindrical surface of the ball screw, and in combination with the auxiliary ball 410 and the second spring 49, the grinding area of ​​the ball screw is elastically clamped in an auxiliary manner;

[0062] Step 5: A high-speed airflow is blown into the annular fixed seat 31 through the airflow pipe 36. The high-speed airflow contacts the wind wheel 35 to drive the rotating ring 32 carrying the arc-shaped grinding block 33 to rotate, and the groove of the ball screw is polished. The second motor drives the grinding roller 47 to rotate, and the cylindrical surface of the ball screw is synchronously polished. The linear module 21 carries the slide seat 22 to move slowly in a horizontal straight line. At the same time, the first motor drives the corresponding rotating seat 26 to rotate, thereby driving the centering clamped ball screw to rotate slowly, and the cylindrical surface and groove of the ball screw are fully polished.

[0063] Step 6: With the help of the rotation of the rotating ring 32, the annular cleaning brushes 37 on both sides are synchronously driven to rotate. The annular cleaning brushes 37 clean the grinding debris on the surface of the ball screw 25. The high airflow blown into the annular fixing seat 31 is injected into the U-shaped tube through the air outlet pipe 38, and then blown onto the ball screw 25 through a plurality of air outlet holes, so as to perform secondary auxiliary cleaning of the grinding debris and perform auxiliary air cooling treatment on the polished ball screw.

[0064] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cylindrical grinding device for ball screw machining, comprising a base (1), and a slide table (11) fixedly connected to the top of the base (1), characterized in that: The slide table (11) is provided with a centering fixing mechanism (2), the base (1) is provided with a cleaning groove grinding mechanism (3), the cleaning groove grinding mechanism (3) comprises an annular fixing seat (31), a rotating ring (32) is installed on the annular fixing seat (31), and a plurality of arc-shaped grinding blocks (33) combined into an annular shape are bolted to the inner wall of the rotating ring (32); An auxiliary cylindrical grinding mechanism (4) is arranged on the top of the annular fixed seat (31), and the auxiliary cylindrical grinding mechanism (4) comprises a fixed frame (41), an adjusting block (42) is slidably installed in the fixed frame (41), and mounting plates (43) are symmetrically fixedly connected on both sides of the adjusting block (42), an auxiliary clamping seat (44) and an auxiliary clamping plate (45) are arranged on the mounting plate (43), and an auxiliary roller (46) and a grinding roller (47) are rotatably installed on the auxiliary clamping plate (45).

2. The cylindrical grinding device for ball screw machining according to claim 1, characterized in that: The centering fixing mechanism (2) includes a linear module (21) fixedly mounted on the top of the slide (11), a slide seat (22) sliding with the slide (11) being mounted on the linear module (21), a fixed clamping platform (23) being fixedly mounted on the slide seat (22), and a movable clamping platform (24) having the same structure as the fixed clamping platform (23) being slidably mounted, and a screw rod (25) threadedly connected to the movable clamping platform (24) being rotatably mounted on the fixed clamping platform (23) and the slide seat (22).

3. The cylindrical grinding device for ball screw machining according to claim 2, characterized in that: A rotating seat (26) is rotatably mounted on the fixed clamping platform (23), and a conical groove is provided on one side of the rotating seat (26). A plurality of groups of L-shaped clamping blocks (27) are slidably mounted on the annular side wall of the conical groove. A first spring (28) is fixedly connected between the L-shaped clamping blocks (27) and the rotating seat (26). A first motor for driving the rotating seat (26) to rotate is fixedly mounted on the fixed clamping platform (23).

4. The cylindrical grinding device for ball screw machining according to claim 1, characterized in that: A rotating platform (34) is rotatably mounted on the top of the base (1), and a first electric push rod and telescopic sleeve rods located on both sides of the first electric push rod are fixedly mounted between the top of the rotating platform (34) and the annular fixed seat (31).

5. The cylindrical grinding device for ball screw machining according to claim 1, characterized in that: A wind wheel (35) is fixedly mounted on the annular outer wall of the rotating ring (32) and located inside the annular fixing seat (31); an air flow pipe (36) penetrating the interior of the annular fixing seat (31) is mounted on the annular fixing seat (31); and annular cleaning brushes (37) are fixedly mounted on both side end surfaces of the rotating ring (32).

6. The cylindrical surface grinding device for ball screw machining according to claim 5, characterized in that: The tops of both sides of the annular fixing seat (31) are fixedly connected with air outlet pipes (38) communicating with the interior thereof, and the ends of the air outlet pipes (38) are fixedly connected with U-shaped pipes, and the U-shaped pipes are provided with a plurality of air outlet holes.

7. The cylindrical grinding device for ball screw machining according to claim 1, characterized in that: The top of the annular fixed seat (31) is rotatably connected to a transverse plate (48) fixed to the fixed frame (41), and guide rods fixed to the base (1) are slidably provided on both sides of the transverse plate (48). A second electric push rod is installed on the top of the fixed frame (41), and the piston rod end of the second electric push rod is fixedly connected to the adjustment block (42).

8. The cylindrical grinding device for ball screw machining according to claim 1, characterized in that: The top of the auxiliary clamp seat (44) is fixedly connected to a guide rod slidably connected to the corresponding mounting plate (43), and a second spring (49) is located outside the guide rod. The bottom of the auxiliary clamp seat (44) is fixedly connected to a clamp seat, and a plurality of auxiliary balls (410) are rollingly embedded on the arc surface of the clamp seat.

9. The cylindrical surface grinding device for ball screw machining according to claim 8, characterized in that: A gear (411) is rotatably mounted on the top of the auxiliary clamping seat (44); an upper tooth plate (412) that slides with the auxiliary clamping seat (44) is connected to the mounting plate (43); a lower tooth plate (413) that slides with the auxiliary clamping seat (44) is connected to the auxiliary clamping plate (45) via an L-shaped rod; the gear (411) is meshed with the upper tooth plate (412) and the lower tooth plate (413); and a second motor for driving the grinding roller (47) to rotate is mounted on the auxiliary clamping plate (45).

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