Special grinding machine for reverse planetary ball screw based on elbow grinding rod

Abstract

The invention relates to the technical field of grinding machines, in particular to a reverse planetary ball screw special grinding machine based on an elbow grinding rod, which comprises a first connecting rod, an extension ball is fixed at the end part of the first connecting rod, a first rotating ring is arranged in the extension ball, a screw joint ring is arranged on the surface of the first connecting rod, and a second rotating ring is arranged on the surface of the screw joint ring. A transverse rod is fixed to the surface of the second rotating ring, a vertical rod is fixed to the other end of the transverse rod, a sleeving ring is fixed to the bottom of the vertical rod, a connecting ring is arranged in the sleeving ring, a rotating groove is formed in the first rotating ring, a flexible connecting rod is arranged in the rotating groove, and a second connecting rod is fixed to the end of the flexible connecting rod. The device has the beneficial effects that a first rotating ring can rotate in an extension ball, a limiting ring is arranged on the surface of the first rotating ring, a limiting groove is formed in the extension ball, multiple sets of rotating grooves are formed in the first rotating ring, and multiple sets of flexible connecting rods are arranged in the first rotating ring.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grinding machine, in particular to a special grinding machine for reverse planetary ball screw based on elbow grinding rod. BACKGROUND

[0002] The inverted planetary roller screw has the characteristics of compact structure and high load. The standard roller screw is a structure in which the screw rotates to drive the nut to move axially, and the inverted roller screw is a structure in which the nut is the driving part, and the inverted roller screw is a structure in which the nut is the driving part. The long nut and short screw structure, the inverted structure is more compact, suitable for scenes with strict requirements on installation space and quality, and the need for integrated design. In addition, the inverted roller screw has fewer start times and can use larger threads, thereby providing higher load capacity than ordinary roller screws. However, the processing difficulty is greatly increased because the nut of the reverse planetary roller screw is long and the inner hole diameter is small. The ordinary grinding rod needs to be angled, so the grinding rod is very thin. Either there are vibration marks or the efficiency is not high, the precision is difficult to guarantee, and batch production is not possible.

[0003] In the prior art, patent number CN220389083U, entitled "Elbow grinding rod", comprising: a shaft, one end of the shaft has an inclined surface; a grinding wheel assembly is arranged on the inclined surface of the end of the shaft; a connecting rod is arranged in the shaft, one end of the connecting rod is connected with a driving device, and the driving device drives the connecting rod to rotate in the shaft, the other end of the connecting rod extends towards the direction of the grinding wheel assembly, and the grinding wheel assembly is inclined relative to the connecting rod; an adapter is arranged between the grinding wheel assembly and the connecting rod, and connects the inclined grinding wheel assembly and the connecting rod, and transmits the rotating force on the connecting rod to the grinding wheel assembly to drive the grinding wheel assembly to rotate. A kind of elbow grinding rod, grinding wheel assembly and connecting rod are connected by adapter, the direction of power transmission is changed, and power transmission is realized.

[0004] In actual use, the technical scheme of soft shaft connection is adopted, and the polishing head is driven to rotate by the soft shaft. The soft shaft is prone to breakage due to excessive torsional force on itself during long-term use. SUMMARY

[0005] The present application relates to the technical field of grinding machine, in particular to a special grinding machine for reverse planetary ball screw based on elbow grinding rod.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a special grinding machine for reverse planetary ball screw based on elbow grinding rod, comprising: The end of the first connecting rod is fixed with an extension ball, the inside of the extension ball is provided with a first rotating ring, the surface of the first connecting rod is provided with a screw ring, the surface of the screw ring is provided with a second rotating ring, the surface of the second rotating ring is fixed with a horizontal rod, the other end of the horizontal rod is fixed with a vertical rod, the bottom of the vertical rod is fixed with a sleeving ring, the inside of the sleeving ring is provided with a connecting ring, the inside of the first rotating ring is provided with a rotating groove, the rotating groove is provided with a soft connecting rod, and the end of the soft connecting rod is fixed with a second connecting rod.

[0007] Preferably, the first rotating ring can rotate in the inside of the extension ball, the surface of the first rotating ring is provided with a limiting ring, the inside of the extension ball is provided with a limiting groove, the limiting ring is located in the limiting groove, and the limiting ring can rotate in the limiting groove, the surface of the first rotating ring is fixed with a plurality of positioning blocks, and the positioning blocks rotate with the first rotating ring.

[0008] Preferably, the surface of the first connecting rod is provided with a screw thread, the screw ring is screwed on the surface of the first connecting rod, the second rotating ring is inserted on the surface of the screw ring, and the second rotating ring can rotate on the surface of the screw ring, the other side surface of the screw ring is provided with a slot, the slot is inserted with a supporting plate, the supporting plate can move in the slot, and the slot is provided with a spring, the surface of the supporting plate and the inside of the slot are connected with the spring, and the surface of the supporting plate is supported by the spring, so that the supporting plate supports the surface of the first connecting rod.

[0009] Preferably, the inside of the first connecting rod is provided with a rotating shaft, the rotating shaft can rotate in the inside of the first connecting rod, the surface of the rotating shaft is provided with a third tooth, the connecting ring is located outside the rotating shaft, the inside of the connecting ring is fixed with a second tooth, the connecting ring is located outside the rotating shaft, and the second tooth can be clamped in the third tooth.

[0010] Preferably, the inside of the first rotating ring is provided with a plurality of rotating grooves, the rotating grooves are provided with soft connecting rods, the soft connecting rods can rotate in the rotating grooves, the soft connecting rods have flexibility, one end of the soft connecting rod is fixed with a polishing head, and the polishing head rotates with the soft connecting rod.

[0011] Preferably, the other end of the soft connecting rod is fixed with a second connecting rod, the soft connecting rod rotates with the second connecting rod, the surface of the second connecting rod is provided with a first tooth, the connecting ring can be sleeved outside the second connecting rod after moving, and the second tooth in the connecting ring can be clamped between the first teeth on the surface of the second connecting rod.

[0012] Preferably, the surface of the second connecting rod is fixed with an arc-shaped rod, the arc-shaped rod is provided with a plurality of groups, the end of the arc-shaped rod is fixed with a limiting ring, the limiting ring is located in the inside of the extension ball, the limiting ring can rotate in the inside of the extension ball, and the arc-shaped rod and the limiting ring rotate with the second connecting rod.

[0013] Preferably, the surface of the cross bar is fixed with two groups of L-shaped rods, the end of the L-shaped rod is fixed with a limiting frame, the L-shaped rod and the limiting frame move with the cross bar, and the limiting frame can be clamped outside the positioning block after moving.

[0014] Preferably, the surface of the extension ball is provided with a through groove, the vertical rod is inserted into the through groove, and the polishing head and the second connecting rod pass through the through groove after the first rotating ring rotates.

[0015] Preferably, the end of the rotating shaft is connected with a driving device, and the driving device drives the rotating shaft to rotate.

[0016] Compared with the prior art, the present application has the following beneficial effects: The first rotating ring can rotate in the interior of the extension ball, the surface of the first rotating ring is provided with a limiting ring, the interior of the extension ball is provided with a limiting groove, the interior of the first rotating ring is provided with a plurality of rotating grooves, and the interior of the first rotating ring is provided with a plurality of soft connecting rods. When the soft connecting rod is damaged, the first rotating ring is rotated to realize quick replacement. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The figure is a structural schematic diagram of the present application.

[0018] Figure 2 The figure is another perspective structural schematic diagram of the present application.

[0019] Figure 3 The figure is Figure 1 The figure is a structural enlarged schematic diagram of position A in the middle.

[0020] Figure 4 The figure is a local enlarged structural schematic diagram of the present application.

[0021] Figure 5 The figure is a sectional structural schematic diagram of the present application.

[0022] Figure 6 The figure is Figure 5 The figure is a structural enlarged schematic diagram of position B in the middle.

[0023] Figure 7 The figure is a structural schematic diagram of the first rotating ring of the present application.

[0024] In the figure: 1, first connecting rod; 2, extension ball; 3, first rotating ring; 4, positioning block; 5, second rotating ring; 6, screw ring; 7, limiting frame; 8, through groove; 9, first tooth; 10, second connecting rod; 11, L-shaped rod; 12, cross bar; 13, slotted; 14, top holding plate; 16, polishing head; 17, soft connecting rod; 18, rotating groove; 19, connecting ring; 20, second tooth; 21, rotating shaft; 22, third tooth; 23, vertical rod; 24, arc-shaped rod; 25, limiting ring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme of the present application, and the advantages are more clear and obvious, the following will be further described in detail with the help of the attached drawings. It should be understood that the specific embodiments described here are part of the embodiments of the present application, not all the embodiments, only to explain the embodiments of the present application, and not for the limitation of the embodiments of the present application, all other embodiments obtained by the ordinary skilled in the art without doing creative work, belong to the scope of protection of the present application.

[0026] Please refer to Figures 1 to 7 The present application provides a technical scheme: Embodiment 1: a reverse planetary ball screw special grinding machine based on elbow grinding rod, comprising: the first connecting rod 1, the end of the first connecting rod 1 is fixed with the extension ball 2, the inside of the extension ball 2 is provided with the first rotating ring 3, the surface of the first connecting rod 1 is provided with the screw ring 6, the surface of the screw ring 6 is provided with the second rotating ring 5, the surface of the second rotating ring 5 is fixed with the cross bar 12, the other end of the cross bar 12 is fixed with the vertical rod 23, the bottom of the vertical rod 23 is fixed with the sleeve ring, the inside of the sleeve ring is provided with the connecting ring 19, the inside of the first rotating ring 3 is provided with the rotating groove 18, the rotating groove 18 is provided with the soft connecting rod 17, the end of the soft connecting rod 17 is fixed with the second connecting rod 10, the inside of the first rotating ring 3 is provided with a plurality of rotating grooves 18, the inside of the first rotating ring 3 is provided with a plurality of soft connecting rods 17, when the soft connecting rod 17 is damaged, the first rotating ring 3 is rotated to realize quick replacement.

[0027] Example 2: on the basis of example 1, the first rotating ring 3 can rotate inside the extension ball 2, the surface of the first rotating ring 3 is provided with a limiting ring, the inside of the extension ball 2 is provided with a limiting groove, the limiting ring is located in the limiting groove, and the limiting ring can rotate in the limiting groove, the surface of the first rotating ring 3 is fixed with a plurality of positioning blocks 4, the positioning block 4 rotates with the first rotating ring 3, the inside of the first rotating ring 3 is provided with a plurality of rotating grooves 18, a soft connecting rod 17 is arranged in the rotating groove 18, the soft connecting rod 17 can rotate in the rotating groove 18, the soft connecting rod 17 has flexibility, one end of the soft connecting rod 17 is fixed with a polishing head 16, the polishing head 16 rotates with the soft connecting rod 17, the other end of the soft connecting rod 17 is fixed with a second connecting rod 10, the soft connecting rod 17 rotates with the second connecting rod 10, the surface of the second connecting rod 10 is provided with first teeth 9, a connecting ring 19 moves to be able to be sleeved outside the second connecting rod 10, and the second teeth 20 inside the connecting ring 19 can be clamped between the first teeth 9 on the surface of the second connecting rod 10, the surface of the second connecting rod 10 is fixed with an arc-shaped rod 24, the arc-shaped rod 24 is provided with a plurality of groups, the end of the arc-shaped rod 24 is fixed with a limiting ring 25, the limiting ring 25 is located inside the extension ball 2, the limiting ring 25 can rotate inside the extension ball 2, and the arc-shaped rod 24 and the limiting ring 25 rotate with the second connecting rod 10, the surface of the cross bar 12 is fixed with two groups of L-shaped rods 11, the end of the L-shaped rod 11 is fixed with a limiting frame 7, the L-shaped rod 11 and the limiting frame 7 move with the cross bar 12, the limiting frame 7 moves to be clamped outside the positioning block 4, the surface of the extension ball 2 is provided with a through groove 8, the vertical rod 23 is inserted into the through groove 8, and after the first rotating ring 3 rotates, the polishing head 16 and the second connecting rod 10 pass through the through groove 8.

[0028] The surface of the first connecting rod 1 is provided with a thread, the screw ring 6 is screwed on the surface of the first connecting rod 1, the second rotating ring 5 is inserted into the surface of the screw ring 6, and the second rotating ring 5 can rotate on the surface of the screw ring 6, the other side surface of the screw ring 6 is provided with a slot 13, the slot 13 is inserted with a supporting plate 14, the supporting plate 14 can move in the slot 13, and a spring is arranged in the slot 13, the spring connects the surface of the supporting plate 14 and the inside of the slot 13, and the spring supports the surface of the supporting plate 14, so that the supporting plate 14 supports the surface of the first connecting rod 1.

[0029] The first connecting rod 1 is internally provided with a rotating shaft 21, which can rotate in the interior of the first connecting rod 1, and the surface of the rotating shaft 21 is provided with third teeth 22. The connecting ring 19 is located outside the rotating shaft 21, and the interior of the connecting ring 19 is fixedly provided with second teeth 20. The connecting ring 19 is located outside the rotating shaft 21, and the second teeth 20 can be clamped in the third teeth 22. The end of the rotating shaft 21 is connected with a driving device, which drives the rotating shaft 21 to rotate. The vertical rod 23 drives the connecting ring 19 to move, so that the connecting ring 19 is located on the surface of the rotating shaft 21 and the second connecting rod 10. The surface of the rotating shaft 21 and the second connecting rod 10 is provided with third teeth 22 and first teeth 9. The interior of the rotating shaft 21 is provided with second teeth 20, which are clamped in the third teeth 22 and the first teeth 9.

[0030] The first rotating ring 3 can rotate in the interior of the extension ball 2. The surface of the first rotating ring 3 is provided with a limiting ring, and the interior of the extension ball 2 is provided with a limiting groove. The interior of the first rotating ring 3 is provided with a plurality of rotating grooves 18, and the interior of the first rotating ring 3 is provided with a plurality of soft connecting rods 17. When the soft connecting rod 17 is damaged, it can be quickly replaced by rotating the first rotating ring 3. The first rotating ring 3 is located in the interior of the extension ball 2. Due to the limiting of the extension ball 2 on the first rotating ring 3, when the first rotating ring 3 rotates, another set of polishing heads 16 rotates with the first rotating ring 3, and the position of the other set of polishing heads 16 will not be offset. The second connecting rod 10 at the end of the soft connecting rod 17 is rotated to the end of the rotating shaft 21, the threaded ring 6 is screwed, the threaded ring 6 moves on the surface of the first connecting rod 1, the threaded ring 6 drives the second rotating ring 5 to move, the second rotating ring 5 drives the vertical rod 23 on the surface to move, the vertical rod 23 drives the connecting ring 19 to move, so that the connecting ring 19 is located on the surface of the rotating shaft 21 and the second connecting rod 10. The surface of the rotating shaft 21 and the second connecting rod 10 is provided with third teeth 22 and first teeth 9. The interior of the rotating shaft 21 is provided with second teeth 20, which are clamped in the third teeth 22 and the first teeth 9. A cylindrical gear is adopted, the gear gap is 0.05-0.2mm (side gap level c or d), the second teeth 20, the third teeth 22 and the first teeth 9 are regularly injected with lubricating oil, and the surfaces of the second teeth 20, the third teeth 22 and the first teeth 9 are all provided with wear-resistant coatings. The second teeth 20, the third teeth 22 and the first teeth 9 are made of high-strength materials. The exterior of the connecting ring 19 is provided with a sleeving ring, so that the rotating shaft 21 can drive the connecting ring 19 and the second connecting rod 10 to rotate, and drive the soft connecting rod 17 to rotate. During the movement of the vertical rod 23, the horizontal rod 12 is driven to move, the horizontal rod 12 drives the L-shaped rod 11 to move, and after the L-shaped rod 11 moves, the limiting frame 7 is clamped on the surface of the positioning block 4, so as to stabilize the angle of the first rotating ring 3.

[0031] While the forgoing detailed description of the application has shown specific embodiments of the application, it is to be understood that changes and modifications can be made to the specific embodiments without departing from the spirit and scope of the application as defined by the claims set forth below.

Claims

1. A special grinding machine for reverse planetary ball screws based on bent grinding rods, characterized in that: include: The first connecting rod (1) has an extension ball (2) fixed at its end. A first rotating ring (3) is provided inside the extension ball (2). A threaded ring (6) is provided on the surface of the first connecting rod (1). A second rotating ring (5) is provided on the surface of the threaded ring (6). A crossbar (12) is fixed on the surface of the second rotating ring (5). A vertical rod (23) is fixed at the other end of the crossbar (12). A sleeve ring is fixed at the bottom of the vertical rod (23). A connecting ring (19) is provided inside the sleeve ring. The first rotating ring (3) is open inside. A rotating groove (18) is provided, and a flexible connecting rod (17) is provided in the rotating groove (18). A second connecting rod (10) is fixed at the end of the flexible connecting rod (17). The first rotating ring (3) can rotate inside the extension ball (2). A limit ring is provided on the surface of the first rotating ring (3). A limit groove is provided inside the extension ball (2). The limit ring is located in the limit groove and can rotate in the limit groove. Multiple sets of positioning blocks (4) are fixed on the surface of the first rotating ring (3). The positioning blocks (4) rotate with the first rotating ring (3).

2. The special grinding machine for reverse planetary ball screws based on bent grinding rods according to claim 1, characterized in that: The surface of the first connecting rod (1) is provided with threads, the threaded ring (6) is threaded onto the surface of the first connecting rod (1), the second rotating ring (5) is inserted into the surface of the threaded ring (6), and the second rotating ring (5) can rotate on the surface of the threaded ring (6). A slot (13) is provided on the other side surface of the threaded ring (6), and a top holding plate (14) is inserted into the slot (13). The top holding plate (14) can move in the slot (13), and a spring is provided in the slot (13). The spring connects the surface of the top holding plate (14) and the inside of the slot (13), and the spring abuts against the surface of the top holding plate (14), so that the top holding plate (14) abuts against the surface of the first connecting rod (1).

3. A special grinding machine for reverse planetary ball screws based on bent grinding rods according to claim 2, characterized in that: The first connecting rod (1) has a rotating shaft (21) inside, which can rotate inside the first connecting rod (1). The surface of the rotating shaft (21) is provided with a third tooth (22). The connecting ring (19) is located outside the rotating shaft (21). The connecting ring (19) has a second tooth (20) fixed inside. The connecting ring (19) is located outside the rotating shaft (21), and the second tooth (20) can be locked in the third tooth (22).

4. A special grinding machine for reverse planetary ball screws based on bent grinding rods according to claim 3, characterized in that: The first rotating ring (3) has multiple sets of rotating grooves (18) inside. A flexible connecting rod (17) is provided in the rotating groove (18). The flexible connecting rod (17) can rotate in the rotating groove (18). The flexible connecting rod (17) is flexible. A grinding head (16) is fixed at one end of the flexible connecting rod (17). The grinding head (16) rotates with the flexible connecting rod (17).

5. A special grinding machine for reverse planetary ball screws based on a bent grinding rod according to claim 4, characterized in that: The other end of the flexible connecting rod (17) is fixed with a second connecting rod (10). The flexible connecting rod (17) rotates with the second connecting rod (10). The surface of the second connecting rod (10) is provided with first teeth (9). After the connecting ring (19) moves, it can be sleeved on the outside of the second connecting rod (10), and the second teeth (20) inside the connecting ring (19) can be locked between the first teeth (9) on the surface of the second connecting rod (10).

6. A special grinding machine for reverse planetary ball screws based on bent grinding rods according to claim 5, characterized in that: The surface of the second connecting rod (10) is fixed with an arc-shaped rod (24). Multiple sets of arc-shaped rods (24) are provided. A limit ring (25) is fixed at the end of the arc-shaped rod (24). The limit ring (25) is located inside the extension ball (2). The limit ring (25) can rotate inside the extension ball (2). The arc-shaped rod (24) and the limit ring (25) rotate with the second connecting rod (10).

7. A special grinding machine for reverse planetary ball screws based on bent grinding rods according to claim 6, characterized in that: Two sets of L-shaped rods (11) are fixed on the surface of the crossbar (12). A limit frame (7) is fixed at the end of the L-shaped rod (11). The L-shaped rod (11) and the limit frame (7) move with the crossbar (12). After the limit frame (7) moves, it can be locked outside the positioning block (4).

8. A special grinding machine for reverse planetary ball screws based on a bent grinding rod according to claim 7, characterized in that: The surface of the extension ball (2) is provided with a through groove (8), the vertical rod (23) is inserted into the through groove (8), and after the first rotating ring (3) rotates, the grinding head (16) and the second connecting rod (10) pass through the through groove (8).

9. A special grinding machine for reverse planetary ball screws based on bent grinding rods according to claim 8, characterized in that: The end of the rotating shaft (21) is connected to a driving device, which drives the rotating shaft (21) to rotate.

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