High-precision positioning tool for positioning bearing welding

Abstract

According to the high-precision positioning tool for positioning bearing welding, when shaft sleeves are clamped and fixed, the distance between the shaft sleeves can be positioned through an inner positioning frame according to the needed span, then a clamping plate in an outer clamping assembly is arranged in a first sliding groove or a second sliding groove, and the shaft sleeves can be clamped and fixed through a second positioning frame. Then the jacking piece jacks the clamping plate to move inwards, so that the shaft sleeve is clamped and fixed, the whole structure is simple, operation is convenient, and the coaxiality and spacing precision of the shaft sleeve are high; the length directions of the adjacent first sliding grooves and the second sliding grooves are partially overlapped, that is, the positions of the clamping plates sliding in the first sliding grooves or the second sliding grooves can be freely adjusted in the axial direction of the long-shaft sleeve, stepless adjustment is achieved, workpieces with different span holes can be clamped and fixed, and universality is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical technical field especially relates to a high accuracy positioning frock for bearing welding. BACKGROUND

[0002] At present, in the assembly process of crane and pump truck and other products, more and more welding parts need to ensure the coaxiality of the inner hole of two, three or more sleeve parts on it, and then ensure higher assembly accuracy.

[0003] And for the welding workpiece of large span hole, when the coaxiality precision requirement is high, it is difficult to process due to the reasons such as no suitable machine tool processing, or the coaxiality precision cannot be guaranteed after processing, or the coaxiality detection frock cannot be disassembled, not only the processing cost is high, but also the detection difficulty after welding is great, and the finished product qualification rate is also low. INVENTION CONTENTS

[0004] The utility model aims at at least in a certain extent solve one of the problems existing in prior art related, and for this purpose, the utility model provides a high accuracy positioning frock for bearing welding.

[0005] In order to achieve the above object, the utility model provides the following technical scheme:

[0006] A high accuracy positioning frock for bearing welding, comprising long shaft sleeve pipe and two clamping positioning assemblies spaced on long shaft sleeve pipe, the center axis hole is penetrated in the center of long shaft sleeve pipe, a plurality of first sliding grooves and second sliding grooves with inconsistent opening direction are arranged on the outer wall of long shaft sleeve pipe, a plurality of first sliding grooves and second sliding grooves are sequentially spaced along the axial direction of long shaft sleeve pipe, and the length direction of adjacent first sliding groove and second sliding groove is partially coincident, the clamping positioning assembly comprises inner positioning frame and outer clamping assembly, the inner positioning frame can slide in the axial direction of long shaft sleeve pipe and can be fixed on long shaft sleeve pipe through fixing part, the outer clamping assembly comprises clamping plate sliding in first sliding groove or second sliding groove and driving part arranged in the center axis hole and used for driving the clamping plate.

[0007] In some embodiments, the fixed block is arranged at both ends of the long shaft sleeve pipe, the first threaded hole coaxially arranged with the long shaft sleeve pipe is penetrated in the fixed block, the driving part is the bolt threaded in the first threaded hole, and one end of the bolt is used for driving the clamping plate.

[0008] In some embodiments, a plurality of groups of clamping groove parts for cooperating with spanner are arranged on the bolt along the axial direction.

[0009] In some embodiments, the clamping groove portion comprises symmetrically arranged notches on the outer wall of the bolt, and a wrench can be clamped between the two notches, and the openings of the notches of the adjacent two sets of clamping groove portions are inconsistent.

[0010] In some embodiments, the openings of the first sliding groove and the second sliding groove are arranged at 90° to each other.

[0011] In some embodiments, the inner positioning frame comprises a positioning plate, a central hole and a first eccentric hole symmetrically arranged on both sides of the central hole are arranged on the positioning plate, a sleeve is sleeved in the central hole, a second threaded hole is penetrated through the outer wall of the sleeve, and the fixing member is a locking screw threadedly connected in the second threaded hole.

[0012] In some embodiments, the positioning plate comprises a central circular plate and an extension plate symmetrically arranged on the outer wall of the central circular plate, the central hole is arranged on the central circular plate, and the first eccentric hole is arranged on the extension plate.

[0013] In some embodiments, the clamping plate comprises a central circular plate and a sliding pressing plate symmetrically arranged on the outer side of the central circular plate, the central circular plate is arranged in the central shaft hole, and the sliding pressing plate is arranged in the first sliding groove or the second sliding groove.

[0014] In some embodiments, the outer clamping assembly further comprises a clamping pressing plate sleeved outside the long shaft sleeve, and the clamping pressing plate is arranged on the inner side of the clamping plate.

[0015] In some embodiments, the clamping pressing plate is symmetrically provided with a second eccentric hole on the upper side and the lower side.

[0016] 1. When clamping and fixing the shaft sleeve, the inner positioning frame can be used to position the spacing of the shaft sleeve according to the required span, the clamping plate in the outer clamping assembly is arranged in the first sliding groove or the second sliding groove, and then the clamping plate is moved inward by the jacking member, so as to clamp and fix the shaft sleeve, the overall structure is simple, the operation is convenient, and the coaxiality and spacing accuracy of the shaft sleeve are high.

[0017] 2. The length direction of the adjacent first sliding groove and the second sliding groove is partially coincident, that is, the clamping plate sliding in the first sliding groove or the second sliding groove can be adjusted at any position in the axial direction of the long shaft sleeve, stepless adjustment is realized, clamping and fixing of workpieces with different span holes can be realized, and the versatility is good.

[0018] 3. The openings of the first sliding groove and the second sliding groove are inconsistent, that is, the first sliding groove and the second sliding groove are not in the same plane, so that the long shaft sleeve is not too thin and deformed, and the overall strength of the long shaft sleeve is ensured.

[0019] 4. In addition, the jacking component is placed inside the central shaft hole, which does not occupy space and reduces unnecessary space occupation. It is suitable for installation in environments with limited space, and at the same time, it can reduce unnecessary material waste, thereby reducing the overall cost. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is a cross-sectional view of the bushing positioning of this utility model;

[0022] Figure 3 This utility model Figure 2 Enlarged view of point A;

[0023] Figure 4 This is a partially exploded view of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the long shaft sleeve of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the bolt in this utility model;

[0026] Figure 7 This is one of the structural schematic diagrams of the internal positioning frame of this utility model;

[0027] Figure 8 This is the second structural schematic diagram of the internal positioning frame of this utility model. Detailed Implementation

[0028] The following detailed description provides various embodiments or examples for implementing this utility model. 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 this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0029] like Figures 1-8 The high-precision positioning fixture for positioning bearing welding shown includes a long shaft sleeve 1 and two clamping and positioning components 11 spaced apart on the long shaft sleeve 1. The long shaft sleeve 1 has a central shaft hole 10 passing through its center. Multiple first grooves 2 and second grooves 3 with different opening orientations are respectively provided on the outer wall of the long shaft sleeve 1. Preferably, the opening orientations of the first grooves 2 and second grooves 3 are set at 90° to each other.

[0030] The first chute 2 and the second chute 3 are arranged in sequence along the axial direction of the long shaft sleeve 1, that is, the first chute 2 and the second chute 3 are not in the same plane, so that the long shaft sleeve 1 is not too thin and deformed, and the overall strength of the long shaft sleeve 1 is ensured.

[0031] The clamping positioning assembly 11 comprises an inner positioning frame 12 and an outer clamping assembly 13. The inner positioning frame 12 can slide in the axial direction of the long shaft sleeve 1 and can be fixed to the long shaft sleeve 1 by a fixing member, that is, the spacing of the shaft sleeve 100 can be positioned by the inner positioning frame 12 according to the required span.

[0032] The outer clamping assembly 13 comprises a clamping plate 4 sliding in the first chute 2 or the second chute 3, and a jacking member arranged in the central shaft hole 10 for jacking the clamping plate 4. After the spacing of the shaft sleeve 100 is positioned, the clamping plate 4 is jacked inward by the jacking member to clamp and fix the shaft sleeve 100. In addition, the length direction of the adjacent first chute 2 and the second chute 3 partially coincides, that is, the clamping plate 4 sliding in the first chute 2 or the second chute 3 can be adjusted at any position in the axial direction of the long shaft sleeve 1 to achieve stepless adjustment, and can clamp and fix workpieces with different span holes, which has good versatility. The overall structure is simple, the operation is convenient, and the coaxiality and spacing accuracy of the shaft sleeve are high.

[0033] In addition, the jacking member is arranged in the central shaft hole 10, so that the space is not occupied, unnecessary space occupation is reduced, it is suitable for installation in an environment with limited space, and unnecessary material waste is reduced, so that the overall cost is reduced.

[0034] Referring to Figure 1 , Figure 4 , Figure 5 It is shown that the fixing blocks 21 are arranged at both ends of the long shaft sleeve 1, the first threaded holes 22 coaxial with the long shaft sleeve 1 are arranged through the fixing blocks 21, the jacking member is a bolt 23 screwed into the first threaded hole 22, and one end of the bolt 23 is used for jacking the clamping plate 4.

[0035] The fixing blocks 21 can be fixed at both ends of the long shaft sleeve 1 by welding, and preferably, the fixing blocks 21 have a rectangular structure, so that the fixing blocks 21 have four planes, and the limiting installation and fixation of the long shaft sleeve 1 are facilitated.

[0036] Referring to Figures 1-3 , and the jacking member is a bolt 23 screwed into the first threaded hole 22. During operation, the bolt 23 can be directly screwed to rotate in or out, so that the clamping plate 4 is tightened or loosened, and the clamping or loosening of the shaft sleeve is realized.

[0037] Further, referring to Figure 6 As shown in the figure, a plurality of sets of clamping groove portions 31 for cooperating with a wrench are arranged on the bolt 23 at intervals along the axial direction thereof; thus, when the bolt 23 is being screwed, the wrench can be as close as possible to one side of the fixing block 21, facilitating the exertion of force on the wrench and thus facilitating the screwing of the bolt 23, improving the convenience of operation.

[0038] Further, the clamping groove portions 31 comprise notches 41 symmetrically arranged on the outer wall of the bolt 23, and the wrench can be clamped between the two notches 41; when being screwed, the wrench can be directly clamped into the two notches 41, so that the bolt 23 can be screwed by the wrench, and the notches 41 can be directly slotted on a milling machine by a milling cutter during processing, which is relatively convenient.

[0039] The openings of the notches 41 of the two adjacent sets of clamping groove portions 31 are not consistent.

[0040] Preferably, the two adjacent sets of clamping groove portions 31 are arranged at a rotation angle of 90° with respect to each other; alternatively, a plurality of the clamping groove portions 2 can be arranged in a spiral along the axial direction of the bolt 23; that is, when operating in a relatively narrow space, the operator uses the wrench at the same side to screw the bolt 23, and after the wrench drives the bolt 23 to rotate by a certain angle, one set of clamping groove portions 31 is necessarily aligned with the position of the operator, so that the operator can clamp the wrench into the clamping groove portions 31 without moving the position, which is very convenient and can improve the work efficiency.

[0041] Referring to Figures 1-4 , Figure 7 , Figure 8 As shown in the figure, the inner positioning frame 12 comprises a positioning plate 61, a central hole 62 and first eccentric holes 63 symmetrically arranged on both sides of the central hole 62 are arranged on the positioning plate 61, a sleeve 64 is sleeved in the central hole 62, a second threaded hole 65 penetrates the outer wall of the sleeve 64, and the fixing member is a locking screw 66 threadedly connected in the second threaded hole 65.

[0042] When the inner positioning frame 12 is positioned, the sleeve 64 is sleeved on the long shaft sleeve 1, and then the sleeve 64 drives the positioning plate 61 to slide along the axial direction of the long shaft sleeve 1 to adjust the position according to the actual situation; after the position is determined, the locking screw 66 is directly screwed in the second threaded hole 65, one end of the locking screw 66 abuts against the outer wall of the long shaft sleeve 1 to fix it, which has strong versatility and can adapt to the positioning of shaft sleeves 100 with different spans; in addition, the first eccentric holes 63 are arranged on the positioning plate 61, and through the arrangement of the first eccentric holes 63, the weight of the positioning plate 61 can be reduced, and the shaft or other workpieces can be welded in the first eccentric holes 63, which facilitates the welding work.

[0043] Further, the positioning plate 61 comprises a center circular ring plate 71 and an extension plate 72 symmetrically arranged on the outer wall of the center circular ring plate 71, the center hole 62 is arranged on the center circular ring plate 71, and the first eccentric hole 63 is arranged on the extension plate 72. The center circular ring plate 71 and the two extension plates 72 on both sides are integrally formed of iron material.

[0044] Referring to Figure 3 As shown, when the shaft sleeve 100 is positioned and welded, the workpiece 101 to be welded is sleeved on the shaft sleeve 100, the extension plate 72 of the inner positioning frame 12 assists in positioning the workpiece 101 (the end face of the extension plate 72 is parallel to the end face of the shaft sleeve 100, ensuring the perpendicularity of the workpiece 101 and the shaft sleeve 100), and then the first eccentric hole 63 of the positioning plate 61 and the second eccentric hole 92 of the clamping pressure plate 91 are used to pre-weld the shaft sleeve 100 and the workpiece 101.

[0045] Therefore, the extension plate 72 can be used to position the shaft sleeve or other welding workpieces, and then the first eccentric holes 63 on the upper and lower sides can be used to pre-weld the upper and lower sides of the inside of the shaft sleeve or other welding workpieces. At the same time, the center circular ring plate 71 does not block the shaft sleeve or other welding workpieces, so that pre-welding can also be performed on the left and right sides of the shaft sleeve or other welding workpieces. Thus, the pre-welding area of the shaft sleeve or other welding workpieces is increased, and deformation during subsequent welding is avoided, thereby improving overall precision.

[0046] In order to improve the stability of clamping the shaft sleeve or other welding workpieces, the outer clamping assembly 13 further comprises a clamping pressure plate 91 sleeved on the outer side of the long shaft sleeve 1, the clamping pressure plate 91 is arranged on the inner side of the clamping plate 4, and the clamping pressure plate 91 is symmetrically provided with a second eccentric hole 92 on the upper and lower sides.

[0047] The clamping pressure plate 91 has the same structure as the positioning plate 61, and the second eccentric hole 92 can be used to pre-weld the upper and lower sides of the outside of the shaft sleeve or other welding workpieces. At the same time, the clamping pressure plate 91 does not block the left and right sides of the shaft sleeve or other welding workpieces, so that pre-welding can also be performed on the left and right sides of the shaft sleeve or other welding workpieces. Thus, the pre-welding area of the shaft sleeve or other welding workpieces is increased, and deformation during subsequent welding is avoided, thereby improving overall precision.

[0048] The clamping plate 4 comprises a center circular plate 81 and a sliding pressure plate 82 symmetrically arranged on the outer side of the center circular plate 81, the center circular plate 81 is arranged in the center shaft hole 10, and the sliding pressure plate 82 is arranged in the first sliding groove 2 or the second sliding groove 3.

[0049] The center circular plate 81 and the two outer slide pressing plates 82 are integrally formed iron materials, and the overall strength is good; when the clamping plate 4 is installed, the clamping plate 4 is first installed into the first sliding groove 2 or the second sliding groove 3, and when the center circular plate 81 is located in the center shaft hole 10, the clamping plate 4 is rotated by 90°, so that the center circular plate 81 will not fall out of the first sliding groove 2 or the second sliding groove 3, and the installation of the clamping plate 4 is realized.

[0050] The person skilled in the art should understand that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only for illustrating the principle of the present application, and various changes and improvements can be made to the present application 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 high precision positioning tool for positioning bearing welds, characterized by: The utility model provides a long axle sleeve (1) and the two clamping positioning assembly (11) of interval setting on long axle sleeve (1), the center axis hole (10) is passed through in the long axle sleeve (1) center, a plurality of first sliding groove (2) and second sliding groove (3) of opening direction inconsistency are arranged on the outer wall of long axle sleeve (1) respectively, a plurality of first sliding groove (2) and second sliding groove (3) are sequentially spaced along the axial direction of long axle sleeve (1), and the length direction of adjacent first sliding groove (2) and second sliding groove (3) is partially coincident, the clamping positioning assembly (11) includes inner positioning frame (12) and outer clamping assembly (13), the inner positioning frame (12) can slide in the axial direction of long axle sleeve (1) and can be fixed on long axle sleeve (1) through fixing piece, the outer clamping assembly (13) includes the clamping plate (4) sliding in first sliding groove (2) or second sliding groove (3) and the tumbler for jacking the clamping plate (4) in the center axis hole (10).

2. A high-precision positioning tool for positioning bearing welding according to claim 1, characterized in that: The fixed block (21) is arranged on both ends of the long axle sleeve (1), the first threaded hole (22) coaxial with the long axle sleeve (1) is arranged through the fixed block (21), the tumbler is the bolt (23) screwed into the first threaded hole (22), one end of the bolt (23) is used for jacking the clamping plate (4).

3. A high precision positioning tool for positioning bearing welds according to claim 2, characterized in that: A plurality of groups of clamping groove parts (31) for cooperating with a wrench are arranged on the bolt (23) along the axial direction.

4. A high-precision positioning tool for positioning bearing welding according to claim 3, characterized in that: The clamping groove part (31) includes the slot (41) symmetrically arranged on the outer wall of the bolt (23), the wrench can be clamped between the two slots (41), and the opening directions of the slots (41) of the adjacent two groups of clamping groove parts (31) are inconsistent.

5. A high precision positioning tool for positioning bearing welds as defined in claim 1, wherein: The opening directions of the first sliding groove (2) and the second sliding groove (3) are arranged at 90° to each other.

6. A high precision positioning tool for positioning bearing welds as defined in claim 1, characterized in that: The inner positioning frame (12) includes the positioning plate (61), the center hole (62) and the first eccentric hole (63) symmetrically arranged on both sides of the center hole (62) are arranged on the positioning plate (61), the sleeve (64) is sleeved in the center hole (62), the second threaded hole (65) is arranged through the outer wall of the sleeve (64), and the fixing piece is the locking screw (66) screwed into the second threaded hole (65).

7. A high precision positioning tool for positioning bearing welds according to claim 6, characterized in that: The positioning plate (61) includes the center ring plate (71) and the extension plate (72) symmetrically arranged on the outer wall of the center ring plate (71), the center hole (62) is arranged on the center ring plate (71), and the first eccentric hole (63) is arranged on the extension plate (72).

8. A high precision positioning tool for positioning bearing welds as defined in claim 1, characterized in that: The clamping plate (4) includes the center plate (81) and the sliding pressing plate (82) symmetrically arranged on the outer side of the center plate (81), the center plate (81) is arranged in the center axis hole (10), and the sliding pressing plate (82) is arranged in the first sliding groove (2) or the second sliding groove (3).

9. A high precision positioning tool for positioning bearing welds as defined in claim 1, characterized in that: The outer clamping assembly (13) further includes the clamping pressing plate (91) sleeved outside the long axle sleeve (1), and the clamping pressing plate (91) is arranged on the inner side of the clamping plate (4).

10. A high precision positioning tool for positioning bearing welds according to claim 9, characterized in that: The clamping pressure plate (91) has a second eccentric hole (92) on both sides symmetrically.

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