A bush positioning tool

Abstract

The present application relates to a kind of axle sleeve positioning tool, including long axle sleeve pipe, when being clamped and fixed to axle sleeve, the interval of axle sleeve can be positioned by adjusting the interval of two inner clamping plates according to the span required, then the axle sleeve is clamped from outside by outer clamping plate, and then the axle sleeve is clamped and fixed, the coaxiality and the precision of interval of axle sleeve can be ensured;The movement of two inner clamping plates is synchronously driven by first drive mechanism, so that the interval of two axle sleeves can be more accurately determined;Meanwhile, the movement of two outer clamping plates is synchronously driven by second drive mechanism, so that the efficiency of axle sleeve clamping positioning can be greatly improved, and the production efficiency is further improved;And overall design is ingenious, reasonably utilizes space, so that after axle sleeve and product are welded, it can be conveniently detected and can be conveniently removed from long axle sleeve pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machinery, in particular to a shaft sleeve positioning tool. BACKGROUND

[0002] At present, in the assembly process of products such as cranes and pump trucks, more and more welding parts need to ensure the coaxiality of the inner holes of two, three or more sleeve parts on them, so as to ensure higher assembly accuracy.

[0003] However, when the coaxiality precision requirement of the welding workpiece with large span hole is high, it is usually difficult to process due to the lack of suitable machine tools, or the coaxiality precision cannot be guaranteed after processing, or the coaxiality detection tool cannot be disassembled, etc. Not only is the processing cost high, but also the post-welding detection is difficult, and the product qualification rate is also low. SUMMARY

[0004] The present application aims to at least solve one of the problems existing in the prior art, and for this purpose, the present application provides a shaft sleeve positioning tool.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A shaft sleeve positioning tool, comprising a long shaft sleeve pipe, an inner clamping device and an outer clamping device are arranged on the long shaft sleeve pipe respectively, the inner clamping device comprises a center sleeve seat which is detachably installed on the long shaft sleeve pipe, two telescopic cylinders are movably arranged at both ends of the center sleeve seat, an inner clamping plate is arranged at the outer end of the telescopic cylinder, and a first driving mechanism for driving the two telescopic cylinders to simultaneously extend outward or simultaneously retract inward is arranged on the center sleeve seat, the outer clamping device comprises a second driving mechanism and two outer clamping plates, the two outer clamping plates are slidably arranged outside the long shaft sleeve pipe and are detachably connected with the second driving mechanism, and the second driving mechanism is arranged in the long shaft sleeve pipe and is used for driving the two outer clamping plates to simultaneously slide outward or simultaneously slide inward along the axial direction of the long shaft sleeve pipe.

[0007] In some embodiments, the center sleeve seat comprises a center ring which is detachably installed on the long shaft sleeve pipe and a bottom cylinder which is arranged at both ends of the center ring, the telescopic cylinder is slidably arranged outside the bottom cylinder, a first sliding rail extending along the axial direction of the long shaft sleeve pipe is arranged on the outer wall of the bottom cylinder, a first sliding block slidably arranged in the first sliding rail is arranged on the inner wall of the telescopic cylinder, the first driving mechanism comprises external threads arranged on the outer walls of the two telescopic cylinders, one of the two external threads is a right-handed thread, and the other is a left-handed thread, a threaded sleeve capable of being threadedly connected with the external threads is arranged outside the telescopic cylinder, a rotating ring is rotatably arranged outside the center ring, and the threaded sleeves at both ends are connected with the rotating ring.

[0008] In some embodiments, the central ring is fixed to the long shaft sleeve by a first bolt, and the outer wall of the central ring is provided with a counterbore, and the first bolt is arranged in the counterbore.

[0009] In some embodiments, the rotating ring is provided with a through hole allowing the first bolt to pass through, and the rotating ring is fixed to the central ring by a second bolt, and the inner end of the threaded sleeve is provided with a connecting ring, the connecting ring is sleeved on the rotating ring, and the connecting ring and the rotating ring are connected by a third bolt.

[0010] In some embodiments, the second driving mechanism includes a coaxial bidirectional screw rod rotating in the long shaft sleeve, a sliding nut is threadedly connected to the left-hand thread and the right-hand thread of the bidirectional screw rod, a second sliding block is arranged on the two sliding nuts, a second sliding rail extending in the axial direction is arranged on the outer wall of the long shaft sleeve, the second sliding block slides in the second sliding rail, and the outer clamping plate is detachably connected with the second sliding block.

[0011] In some embodiments, a mounting plate is arranged outside the outer clamping plate, and the mounting plate is fixed to the second sliding block by a fourth bolt.

[0012] In some embodiments, both ends of the bidirectional screw rod extend out of the long shaft sleeve and are provided with a hexagonal head capable of cooperating with a wrench.

[0013] In some embodiments, eccentric through holes are arranged on the inner clamping plate and the outer clamping plate.

[0014] Compared with the prior art, the beneficial effects of the present application are:

[0015] 1. When clamping and fixing the shaft sleeve, the distance between the two inner clamping plates can be adjusted according to the required span, so as to position the distance between the shaft sleeves, and then the outer clamping plate clamps the shaft sleeve from the outside, thereby clamping and fixing the shaft sleeve, which can ensure the coaxiality and distance precision of the shaft sleeve;

[0016] 2. The movement of the two inner clamping plates is synchronously driven by the first driving mechanism, so as to more accurately determine the distance between the two shaft sleeves; at the same time, the movement of the two outer clamping plates is synchronously driven by the second driving mechanism, so as to greatly improve the efficiency of shaft sleeve clamping and positioning, thereby improving the production efficiency;

[0017] 3. The inner clamping plate is connected to the first drive mechanism, and the first drive mechanism is detachably installed with the long shaft sleeve. In addition, the outer clamping plate is detachably connected to the second drive mechanism, which is located inside the long shaft sleeve. Thus, through ingenious mechanical design, space is rationally utilized, making it easy to inspect the bushing after it is welded to the product and easy to remove it from the long shaft sleeve. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a cross-sectional view of the bushing positioning according to the present invention;

[0020] Figure 3 For the present invention Figure 2 Enlarged view of point A;

[0021] Figure 4 For the present invention Figure 2 Enlarged view of point B;

[0022] Figure 5 This is a partially exploded schematic diagram of the central sleeve seat and the first driving mechanism of the present invention. Detailed Implementation

[0023] The following detailed description provides various embodiments or examples for carrying out the present invention. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of the invention and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0024] like Figures 1-5 The bushing positioning fixture shown includes a long bushing 1, on which an inner clamping device and an outer clamping device are respectively provided. The inner clamping device includes a central sleeve seat 2 detachably mounted on the long bushing 1. Telescopic cylinders 3 are movably extended and retracted at both ends of the central sleeve seat 2. An inner clamping plate 4 is provided at the outer end of the telescopic cylinder 3. A first driving mechanism for driving the two telescopic cylinders 3 to extend outward or retract inward simultaneously is also provided on the central sleeve seat 2. The outer clamping device includes a second driving mechanism and two outer clamping plates 5. The two outer clamping plates 5 are slidably sleeved on the outside of the long bushing 1 and detachably connected to the second driving mechanism. The second driving mechanism is located inside the long bushing 1 and is used to drive the two outer clamping plates 5 to slide outward or inward simultaneously along the axial direction of the long bushing 1.

[0025] Therefore, when the shaft sleeve 100 is clamped and fixed, the distance between the shaft sleeves 100 can be positioned according to the required distance by adjusting the distance between the two inner clamping plates 4, and then the shaft sleeve 100 is clamped from the outside by the outer clamping plate 5, thereby clamping and fixing the shaft sleeve 100, which can ensure the coaxiality and distance accuracy of the shaft sleeve 100.

[0026] It is worth mentioning that the movement of the two inner clamping plates 4 is synchronously driven by the first driving mechanism, so that the distance between the two shaft sleeves 100 can be more accurately determined; at the same time, the movement of the two outer clamping plates 5 is synchronously driven by the second driving mechanism, so that the efficiency of the shaft sleeve clamping and positioning can be greatly improved, thereby improving the production efficiency.

[0027] The inner clamping plate 4 is connected with the first driving mechanism, and the first driving mechanism is detachably installed on the long shaft sleeve pipe 1. In addition, the outer clamping plate 5 is detachably connected with the second driving mechanism, and the second driving mechanism is arranged in the long shaft sleeve pipe 1. Therefore, through ingenious mechanical design and reasonable use of space, after the shaft sleeve 100 and the product 101 are welded, the shaft sleeve 100 can be conveniently detected and removed from the long shaft sleeve pipe.

[0028] Further, the center sleeve seat 2 comprises a center ring 21 detachably installed on the long shaft sleeve pipe 1 and a bottom cylinder 22 arranged at both ends of the center ring 21, the center ring 21 and the bottom cylinder 22 at both ends are integrally formed, the telescopic cylinder 3 is slidably arranged outside the bottom cylinder 22, a first sliding rail 23 extending along the axial direction of the long shaft sleeve pipe 1 is arranged on the outer wall of the bottom cylinder 22, and a first sliding block 24 sliding in the first sliding rail 23 is arranged on the inner wall of the telescopic cylinder 3, so that the telescopic cylinder 3 can slide along the axial direction of the long shaft sleeve pipe 1 outside the bottom cylinder 22 through the guidance of the first sliding rail 23, the first driving mechanism comprises outer threads 25 arranged on the outer walls of the two telescopic cylinders 3, one of the two outer threads 25 is a right-handed thread, and the other is a left-handed thread, a threaded sleeve 26 threadedly connected with the outer threads 25 is arranged outside the telescopic cylinder 3, a rotating ring 27 is rotatably arranged outside the center ring 21, and the threaded sleeves 26 at both ends are connected with the rotating ring 27.

[0029] The specific working principle of the first driving mechanism is as follows: the threaded sleeves 26 at both ends are driven to rotate in the same direction by the rotating ring 27, since the outer threads 25 on the outer walls of the two telescopic cylinders 3 are a right-handed thread and a left-handed thread respectively, when the threaded sleeves 26 rotate and cooperate with the outer threads 25, and under the action of the first sliding block 24 and the first sliding rail 23, the two telescopic cylinders 3 drive the inner clamping plates 4 to simultaneously slide outward or simultaneously slide inward, thereby realizing rapid adjustment of the distance between the two inner clamping plates 4.

[0030] Referring toFigure 1 、 Figure 5 As shown in the figure, the center ring 21 is fixed on the long shaft sleeve 1 by the first bolt 31, so that the center ring 21 can be fixed by the first bolt 31, the structure is simple, and the operation is convenient. The outer wall of the center ring 21 is provided with a counterbore 32, and the first bolt 31 is arranged in the counterbore 32. The first bolt 31 is embedded in the counterbore 32, so that the rotation of the rotating ring 27 on the center ring 21 is not affected.

[0031] Further, the rotating ring 27 is provided with an avoiding through hole 41 through which the first bolt 31 passes. When the center ring 21 is installed, the first bolt 31 passes through the avoiding through hole 41 and is installed.

[0032] The rotating ring 27 is fixed on the center ring 21 by the second bolt 44. The inner end of the threaded sleeve 26 is provided with a connecting ring 42. The connecting ring 42 is sleeved on the rotating ring 27 and connected with the rotating ring 27 by the third bolt 43. When the distance adjustment of the telescopic cylinder 3 is completed, the rotating ring 27 is fixed on the center ring 21 by the second bolt 44, and then the telescopic cylinder 3 and the inner clamping plate 4 are fixed.

[0033] It is worth mentioning that the connecting ring 42 on the threaded sleeve 26 is fixed on the rotating ring 27 by the third bolt 43. Therefore, according to the actual situation, the third bolt 43 on one side of the threaded sleeve 26 can be loosened, so that the threaded sleeve 26 on this side can be rotated alone, and the position of the inner clamping plate 4 on one side can be adjusted alone. It is practical.

[0034] Referring to Figures 1-3 As shown in the figure, the second driving mechanism includes a coaxial bidirectional screw rod 51 rotating in the long shaft sleeve 1. The left-hand thread and the right-hand thread of the bidirectional screw rod 51 are both threadedly connected with a sliding nut 52. The two sliding nuts 52 are both provided with a second sliding block 53. The outer wall of the long shaft sleeve 1 is provided with a second sliding rail 54 extending in the axial direction. The second sliding block 53 slides in the second sliding rail 54. The outer clamping plate 5 is detachably connected with the second sliding block 53.

[0035] The specific working principle of the second driving mechanism is as follows: through the rotation of the bidirectional screw rod 51, the left-hand thread and the right-hand thread of the bidirectional screw rod 51 are matched with the corresponding sliding nuts 52. The sliding nuts 52 slide in the second sliding rail 54 with the second sliding block 53 and the second sliding rail 54, so that the two second sliding blocks 53 and the outer clamping plate 5 slide inward or outward, and the shaft sleeve 100 can be quickly clamped.

[0036] Further, an installation plate 61 is arranged outside the outer clamping plate 5, the installation plate 61 is fixed on the second sliding block 53 through a fourth bolt 62, the structure is simple, the installation is convenient, and the second sliding block 53 does not protrude outside the second sliding rail 54, thereby not affecting the installation and removal of the outer clamping plate 5, the bearing 100, the central sleeve seat 2 and the like.

[0037] Further, the two ends of the bidirectional screw rod 51 extend outside the long shaft sleeve 1, and a hexagonal head 71 capable of cooperating with a wrench is arranged, the bidirectional screw rod 51 is conveniently screwed through cooperation of the wrench and the hexagonal head 71, of course, the outer end of the bidirectional screw rod 51 can also be driven to rotate through a motor or other machine equipment.

[0038] Referring to FIG. 8, Figure 1 , Figure 5 As shown in FIG. 8, eccentric through holes 81 are arranged on the inner clamping plate 4 and the outer clamping plate 5, through the arrangement of the eccentric through holes 81, the weight of the inner clamping plate 4 or the outer clamping plate 5 can be reduced, meanwhile, a shaft sleeve or other workpieces can be welded in the eccentric through holes 81, thereby facilitating welding work.

[0039] Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the present application, various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A bushing positioning tool comprising a long bushing tube (1), characterized in that: The long shaft sleeve (1) is respectively provided with an inner clamping device and an outer clamping device, the inner clamping device comprises a center sleeve seat (2) which is detachably installed on the long shaft sleeve (1), and a telescopic cylinder (3) is movably arranged at both ends of the center sleeve seat (2), an inner clamping plate (4) is arranged at the outer end of the telescopic cylinder (3), and a first driving mechanism for driving the two telescopic cylinders (3) to simultaneously extend outward or simultaneously retract inward is further arranged on the center sleeve seat (2), the outer clamping device comprises a second driving mechanism and two outer clamping plates (5), the two outer clamping plates (5) are slidably sleeved on the outer side of the long shaft sleeve (1) and are detachably connected with the second driving mechanism, the second driving mechanism is arranged in the long shaft sleeve (1) and is used for driving the two outer clamping plates (5) to simultaneously slide outward or simultaneously slide inward along the axial direction of the long shaft sleeve (1), and eccentric through holes (81) are arranged on the inner clamping plate (4) and the outer clamping plate (5). The center sleeve seat (2) comprises a center ring (21) which is detachably installed on the long shaft sleeve (1) and a bottom cylinder (22) which is arranged at both ends of the center ring (21), the first driving mechanism comprises outer threads (25) arranged on the outer walls of the two telescopic cylinders (3), one of the two outer threads (25) is a right-handed thread, and the other is a left-handed thread, a threaded sleeve (26) which can be threadedly connected with the outer threads (25) is sleeved on the outer wall of the telescopic cylinder (3), a rotating ring (27) is rotatably sleeved on the outer wall of the center ring (21), and the threaded sleeves (26) at both ends are connected with the rotating ring (27). The second driving mechanism comprises a bidirectional screw rod (51) which is coaxially arranged in the long shaft sleeve (1), a sliding nut (52) is threadedly connected with the left-handed thread and the right-handed thread of the bidirectional screw rod (51), a second sliding block (53) is arranged on the sliding nut (52), a second sliding rail (54) which extends along the axial direction is arranged on the outer wall of the long shaft sleeve (1), the second sliding block (53) slides in the second sliding rail (54), and the outer clamping plate (5) is detachably connected with the second sliding block (53); an installation plate (61) is arranged on the outer side of the outer clamping plate (5), and the installation plate (61) is fixed on the second sliding block (53) through a fourth bolt (62).

2. The bushing positioning tool of claim 1, wherein: The telescopic cylinder (3) is slidably sleeved on the outer wall of the bottom cylinder (22), a first sliding rail (23) which extends along the axial direction of the long shaft sleeve (1) is arranged on the outer wall of the bottom cylinder (22), and a first sliding block (24) which slides in the first sliding rail (23) is arranged on the inner wall of the telescopic cylinder (3).

3. The bushing positioning tool of claim 2, wherein: The center ring (21) is fixed on the long shaft sleeve (1) through a first bolt (31), a counterbore (32) is arranged on the outer wall of the center ring (21), and the first bolt (31) is arranged in the counterbore (32).

4. The bushing positioning tool of claim 3, wherein: The rotation ring (27) is provided with an avoiding through hole (41) through which the first bolt (31) passes, the rotation ring (27) is fixed on the center ring (21) through a second bolt (44), the inner end of the threaded sleeve (26) is provided with a connecting ring (42), the connecting ring (42) is sleeved on the rotation ring (27), and the connecting ring (42) is connected with the rotation ring (27) through a third bolt (43).

5. The bushing positioning tool of claim 1, wherein: The two ends of the bidirectional screw rod (51) extend out of the long shaft sleeve pipe (1) and are provided with hexagonal heads (71) capable of cooperating with a wrench.

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