Diesel engine cylinder body lining pulling and pressing positioning tool

Abstract

The utility model discloses a diesel engine cylinder body lining pulling and pressing positioning tool, which relates to the technical field of diesel engine cylinder body processing and comprises a guide sleeve, a calibration piece and a verification piece. The guide sleeve is provided with an annular step portion in the circumferential direction, the annular step portion is sleeved with the lining, the guide sleeve is connected with a positioning piece through an elastic piece, the positioning piece is used for being matched with a wire groove formed in the inner wall of the lining in a clamped mode to achieve radial positioning of the lining and the guide sleeve, and the guide sleeve is further provided with a positioning groove. The calibration piece is used for being clamped into the positioning groove to achieve radial positioning of the guide sleeve and the cylinder body. The verification piece is arranged on the cylinder body and located on a moving path when the guide sleeve is pulled and pressed, and the verification piece is used for being matched with the guide sleeve to achieve axial positioning of the lining and the cylinder body. According to the pulling and pressing positioning tool for the liner of the diesel engine cylinder body, the pulling and pressing efficiency of the liner is improved, the position accuracy of the liner after pulling and pressing is guaranteed, the oil hole of the liner is aligned with the inclined oil hole of the cylinder body, the machining quality is improved, and meanwhile the operation difficulty of operators can be lowered.

Description

TECHNICAL FIELD

[0001] The utility model relates to diesel engine cylinder body processing technical field, especially diesel engine cylinder body bushing pull -press positioning frock. BACKGROUND

[0002] When diesel engine cylinder body camshaft hole bushing is pulled and pressed, hydraulic cylinder is used to pull bushing into cylinder body camshaft hole, oil hole on bushing needs to be aligned with inclined oil hole in cylinder body camshaft hole, and oil passage is guaranteed to be unobstructed, the prior art often confirms the position of bushing oil hole and inclined oil hole in cylinder body camshaft hole in radial and axial directions through visual inspection and scribing and the like, cannot be accurately positioned, and bushing oil hole and cylinder oil hole are not aligned frequently, and rework is needed. SUMMARY

[0003] The utility model discloses a diesel engine cylinder body bushing pull -press positioning frock, and solve the technical problem that the prior art often confirms the position of bushing oil hole and inclined oil hole in cylinder body camshaft hole in radial and axial directions through visual inspection and scribing and the like, cannot be accurately positioned.

[0004] To achieve the above object, the utility model provides a diesel engine cylinder body bushing pull -press positioning frock, which comprises:

[0005] The guide sleeve is provided with an annular step portion in the circumferential direction, the bushing is sleeved on the annular step portion, the guide sleeve is connected with a positioning piece through an elastic piece, the positioning piece is used for being clamped with a wire groove arranged on the inner wall of the bushing to realize the radial positioning of the bushing and the guide sleeve, and the guide sleeve is also provided with a positioning groove.

[0006] The calibration piece is used for being clamped into the positioning groove to realize the radial positioning of the guide sleeve and the cylinder body.

[0007] The calibration piece is used for being clamped into the positioning groove to realize the radial positioning of the guide sleeve and the cylinder body.

[0008] Preferably, the calibration piece comprises:

[0009] The mounting plate is fixedly arranged on the installation plate.

[0010] The scale is fixedly arranged on the mounting plate.

[0011] The fixed plate is fixedly arranged on the mounting plate, and the fixed plate is fixedly provided with a connecting rod, and the connecting rod is sleeved with a spring.

[0012] A movable plate is movably arranged on the mounting plate and connected with the spring, and is arranged to abut with the guide sleeve, and the movable plate is fixedly provided with an indicating element, which is arranged to abut with the scale to indicate the axial position of the guide sleeve, so as to determine whether the oil hole of the bushing is aligned with the inclined oil hole of the cylinder.

[0013] Preferably, the testing element further comprises:

[0014] A guide rod is fixedly arranged at one end of the fixed plate.

[0015] A guide sleeve is fixedly arranged on the movable plate and is in sliding connection with the guide rod.

[0016] Preferably, the number of the guide rods is two, and the two guide rods are symmetrically arranged on both sides of the connecting rod, and the guide sleeve corresponds to the guide rod one by one.

[0017] Preferably, the mounting plate is L-shaped, the scale is fixedly arranged on the bottom of the side surface of the mounting plate through a fastener, and the indicating element is located below the scale.

[0018] Preferably, the top of the mounting plate is provided with a connecting element for mounting the testing element on the cylinder.

[0019] Preferably, the side surface of the guide sleeve is provided with a gland, the gland is connected with the guide sleeve, the bushing is clamped between the gland and the bushing, the gland is provided with a through hole, and the gland is connected with a pulling and pressing device through the through hole to drive the guide sleeve to move for pulling and pressing.

[0020] Preferably, the side of the gland away from the bushing is fixedly provided with a gasket.

[0021] Preferably, the elastic element is a cylindrical spring, and the cylindrical spring is arranged in the radial direction of the guide sleeve.

[0022] Preferably, the calibration element is a testing rod, and the diameter of the testing rod is smaller than the diameter of the inclined oil hole of the cylinder.

[0023] With respect to the above background technology, the diesel engine cylinder bushing pulling and pressing positioning tool provided by the present application realizes radial locking of the guide sleeve and the bushing through the clamping of the guide sleeve and the inner wall linear groove of the bushing, realizes radial positioning of the guide sleeve and the cylinder through the cooperation of the calibration element and the positioning groove of the guide sleeve, realizes axial positioning of the bushing through the cooperation of the guide sleeve and the testing element, the positioning precision between the bushing and the cylinder is high, the oil hole of the bushing is accurately aligned with the inclined oil hole of the cylinder, the situation that the oil hole of the bushing is not aligned with the inclined oil hole of the cylinder does not occur, rework and repair are not needed, the tool is suitable for batch production, and the production efficiency can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings described in the following are only part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] Figure 1 The cross-sectional view of the diesel engine cylinder liner pull-press positioning tool provided by the embodiments of the present application is shown in Figure 1.

[0026] Figure 2 The cross-sectional view of the diesel engine cylinder liner pull-press positioning tool provided by the embodiments of the present application is shown in Figure 1.

[0027] Figure 3 The schematic diagram of the positioning groove in the diesel engine cylinder liner pull-press positioning tool provided by the embodiments of the present application is shown in Figure 4.

[0028] Figure 4 The perspective view of the testing piece in the diesel engine cylinder liner pull-press positioning tool provided by the embodiments of the present application is shown in Figure 5.

[0029] Figure 5 The structural schematic diagram of the testing piece in the diesel engine cylinder liner pull-press positioning tool provided by the embodiments of the present application is shown in Figure 6.

[0030] Figures 1 to 5 Reference numerals: 10, guide sleeve; 11, annular stepped portion; 12, positioning piece; 13, positioning groove; 20, testing piece; 21, mounting plate; 211, connecting piece; 22, scale; 23, fixed plate; 24, movable plate; 25, connecting rod; 251, spring; 26, indicating piece; 27, guide rod; 28, guide sleeve; 30, gland; 31, through hole; 40, gasket; 50, liner. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the present application will be described clearly and completely in the following by combining the drawings in the embodiments of the present application, obviously, the described embodiments are only part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0032] In order to make the person skilled in the art better understand the technical scheme of the present application, the present application will be further described in detail by combining the drawings and specific embodiments.

[0033] The utility model provides a diesel engine cylinder liner pull -press positioning frock, change the mode of present pull -press liner 50 visual inspection and scribe, the liner is with the radial and axial positioning between cylinder body, realizes the accurate alignment of liner 50 oil hole and cylinder body inclined oil hole.

[0034] Please refer to Figures 1 to 5 The diesel engine cylinder liner pull -press positioning frock provided by the utility model includes a guide sleeve 10, a calibration piece and a verification piece 20.

[0035] The guide sleeve 10 is provided with an annular stepped portion 11 in the circumferential direction, wherein the annular stepped portion 11 is located at one end of the outer portion of the guide sleeve 10, and the liner 50 is sleeved on the annular stepped portion 11. The guide sleeve 10 is connected with a positioning piece 12 through an elastic piece, and the positioning piece 12 is used for being matched with a wire slot arranged on the inner wall of the liner 50 to realize the radial positioning of the liner 50 and the guide sleeve 10. In this way, one side of the positioning piece 12 used for being matched with the wire slot is arc-shaped. The guide sleeve 10 is further provided with a positioning groove 13.

[0036] The calibration piece is used for being clamped into the positioning groove 13 to realize the radial positioning of the guide sleeve 10 and the cylinder body.

[0037] The verification piece 20 is arranged on the cylinder body and located on the moving path of the guide sleeve 10 during pulling and pressing, and is used for being matched with the guide sleeve 10 to realize the axial positioning of the liner 50 and the cylinder body.

[0038] In use, the liner 50 is sleeved on the annular stepped portion 11 of the guide sleeve 10, the liner 50 is rotated to make the wire slot arranged on the inner wall of the liner 50 be matched with the positioning piece 12 on the guide sleeve 10, and the radial locking of the guide sleeve 10 and the liner 50 is completed. Then, the guide sleeve 10 is inserted into the camshaft hole of the cylinder body, the calibration piece is inserted into the inclined oil hole of the cylinder body, and the guide sleeve 10 is rotated until the calibration piece is embedded into the positioning groove 13 of the guide sleeve 10, at this time, the radial positioning of the guide sleeve 10 and the cylinder body is completed. The verification piece 20 is installed on the cylinder body, the guide sleeve 10 is moved by the pulling and pressing device, and when the guide sleeve 10 moves to the preset position, the axial positioning of the liner 50 is completed, and the liner 50 oil hole and the cylinder body inclined oil hole are accurately aligned.

[0039] In this way, the radial locking of the guide sleeve 10 and the liner 50 is realized by the wire slot matching of the guide sleeve 10 and the inner wall of the liner 50, the radial positioning of the guide sleeve 10 and the cylinder body is realized by the matching of the calibration piece and the positioning groove 13 of the guide sleeve 10, the alignment of the liner 50 oil hole and the cylinder body inclined oil hole is realized by the matching of the guide sleeve 10 and the verification piece 20, the axial positioning of the liner 50 is realized, the positioning precision between the liner 50 and the cylinder body is high, the situation that the liner 50 oil hole and the cylinder body inclined oil hole are not aligned does not occur, rework and repair are not needed, it is suitable for batch production, and the production efficiency is improved.

[0040] Please refer to Figures 4 to 5The utility model provides a diesel engine cylinder liner pull -press positioning frock, and the frock comprises a fixed plate 21, a scale 22, a fixed plate 23 and a movable plate 24.

[0041] The scale 22 is fixedly arranged on the fixed plate 21, wherein, in the embodiment, the minimum scale value of the scale 22 can be 1mm, and the minimum scale value can be set according to the actual situation of the cylinder, and the specific limitation is not given.

[0042] The fixed plate 23 is fixedly arranged on the fixed plate 21, the fixed plate 23 is fixedly provided with a connecting rod 25, the connecting rod 25 is sleeved with a spring 251; the movable plate 24 is connected with the spring 251, the movable plate 24 is movably arranged on the fixed plate 21 and is used for abutting cooperation with the guide sleeve 10, the movable plate 24 is fixedly provided with an indicating element 26, and the indicating element 26 is used for cooperating with the scale 22 to indicate the axial position of the guide sleeve 10 so as to determine whether the oil hole of the liner 50 is aligned with the inclined oil hole of the cylinder.

[0043] When the guide sleeve 10 is moved by the pull -press device, one side of the guide sleeve 10 can contact and abut against the movable plate 24 in the detecting element 20, so as to push the movable plate 24 to move, along with the movement of the movable plate 24, the spring 251 between the movable plate 24 and the fixed plate 23 is compressed. Due to the movement of the movable plate 24, the indicating element 26 is moved, when the indicating element 26 moves to the preset value of the scale 22, at this time, it represents that the liner 50 is moved to the position, the axial positioning between the liner 50 and the cylinder is realized, and the oil hole of the liner 50 is aligned with the inclined oil hole of the cylinder.

[0044] In this way, by cooperation of the indicating element 26 and the scale 22, the axial positioning between the liner 50 and the cylinder is realized, the alignment accuracy of the oil hole of the liner 50 can effectively guarantee the product quality.

[0045] Please refer to Figures 4 to 5 The utility model provides a diesel engine cylinder liner pull -press positioning frock, and the frock comprises a fixed plate 21, a scale 22, a fixed plate 23 and a movable plate 24.

[0046] One end of the guide rod 27 is fixedly arranged on the fixed plate 23; the guide sleeve 28 is fixedly arranged on the movable plate 24 and is slidably connected with the guide rod 27. Specifically, one end of the guide sleeve 28 is fixedly arranged on the movable plate 24, and the guide rod 27 and the guide sleeve 28 are arranged along the horizontal direction.

[0047] When the guide sleeve 10 is moved by the pull -press device, one side of the guide sleeve 10 can contact and abut against the movable plate 24 in the detecting element 20, so as to push the movable plate 24 to move, along with the movement of the movable plate 24, the spring 251 between the movable plate 24 and the fixed plate 23 is compressed. Due to the movement of the movable plate 24, the indicating element 26 is moved, when the indicating element 26 moves to the preset value of the scale 22, at this time, it represents that the liner 50 is moved to the position, the axial positioning between the liner 50 and the cylinder is realized, and the oil hole of the liner 50 is aligned with the inclined oil hole of the cylinder.

[0048] Please refer to Figures 4 to 5 The number of guide rods 27 is two, and the two guide rods 27 are symmetrically arranged on both sides of the connecting rod 25, and the guide sleeves 28 correspond to the guide rods 27 one by one.

[0049] In this way, due to the support of the two guide rods 27, the carrying capacity is improved, and it is suitable for application scenarios with larger loads; moreover, the swing and bending can be significantly reduced, thereby improving the stability of the system.

[0050] Please refer to Figures 4 to 5 The mounting plate 21 is L-shaped, the scale 22 is fixed on the side bottom of the mounting plate 21 through fasteners, and the indicating part 26 is located below the scale 22.

[0051] Among them, the fastener can be a fastening bolt or a fastening screw, which is not only reliable in connection, but also convenient to disassemble and assemble.

[0052] Please refer to Figures 4 to 5 The top of the mounting plate 21 is provided with a connecting part 211 for mounting the testing part 20 on the cylinder body. Among them, the connecting part 211 can be a fixed pin or the like.

[0053] In addition, when the testing part 20 is installed, it can be positioned through the two tappet holes on the cylinder top surface and the inclined oil hole and the cylinder top surface.

[0054] Please refer to Figures 1 to 3 The side surface of the guide sleeve 10 is provided with a gland 30, the gland 30 is connected with the guide sleeve 10, the bushing 50 is clamped between the gland 30 and the bushing 50, the gland 30 is provided with a through hole 31, and the gland 30 is used for connecting with the tension and compression device through the through hole 31 to drive the guide sleeve 10 to move for tension and compression.

[0055] Among them, the gland 30 and the inner hole of the guide sleeve 10 can be connected through interference fit or clearance fit, the tension and compression device can adopt a hydraulic tension and compression device, the output end of the hydraulic tension and compression device is connected with the gland 30 through the through hole 31 of the gland 30, and after the hydraulic tension and compression device is started, the guide sleeve 10 is driven by the gland 30 to move for tension and compression operation, so as to install the bushing 50 on the cylinder body.

[0056] Please refer to Figures 1 to 3 The side of the gland 30 away from the bushing 50 is fixedly provided with a gasket 40, and the gasket 40 is concentrically arranged with the gland 30. By arranging the gasket 40, the direct friction can be reduced.

[0057] Preferably, the elastic member is a cylindrical spring arranged along the radial direction of the guide sleeve 10. The bushing 50 is sleeved on the annular stepped portion 11 of the guide sleeve 10, and the bushing 50 is compressed. When the wire slot arranged on the inner wall of the bushing 50 moves to the position of the positioning member 12 on the guide sleeve 10, the positioning member 12 is embedded in the wire slot of the inner wall of the bushing 50, and the positioning member 12 is clamped with the wire slot of the inner wall of the bushing 50, so that the radial locking of the guide sleeve 10 and the bushing 50 is completed.

[0058] Preferably, the calibration member is a gauge rod, and the diameter of the gauge rod is smaller than the diameter of the inclined oil hole of the cylinder body.

[0059] The use process of the diesel engine cylinder body bushing pull-press positioning tool is as follows: first, the bushing 50 is sleeved on the annular stepped portion 11 of the guide sleeve 10, and the wire slot arranged on the inner wall of the bushing 50 is clamped with the positioning member 12 on the guide sleeve 10 by rotating the bushing 50, so that the radial locking of the guide sleeve 10 and the bushing 50 is completed. Then, the guide sleeve 10 is inserted into the camshaft hole, the calibration member is inserted into the inclined oil hole of the cylinder body, and the guide sleeve 10 is rotated until the calibration member is embedded in the positioning groove 13 of the guide sleeve 10, so that the radial positioning of the guide sleeve 10 and the cylinder body is completed. The calibration member 20 is installed to the cylinder body, and finally the guide sleeve 10 is moved by the pull-press device, one side of the guide sleeve 10 can be in contact with the movable plate 24 in the calibration member 20, so as to push the movable plate 24 to move, and the spring 251 between the movable plate 24 and the fixed plate 23 is compressed along with the movement of the movable plate 24. Due to the movement of the movable plate 24, the indicating member 26 is moved, and when the indicating member 26 moves to the preset value of the scale 22, it represents that the bushing 50 is moved to the position, so as to realize the axial positioning between the bushing 50 and the cylinder body, and the oil hole of the bushing 50 is aligned with the inclined oil hole of the cylinder body.

[0060] Compared with the prior art, the diesel engine cylinder body bushing pull-press positioning tool improves the pull-press efficiency of the bushing 50, guarantees the position accuracy of the bushing 50 after pull-pressing, accurately aligns the oil hole of the bushing 50 with the inclined oil hole of the cylinder body, improves the processing quality, and reduces the operation difficulty of the operator.

[0061] It should be noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities.

[0062] The principle and implementation mode of the present application are described by using specific examples in the present application, and the above examples are only used to help understand the method and core idea of the present application. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principle of the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A diesel engine cylinder liner pull-press positioning tool, characterized by, The utility model relates to a kind of cylinder liner positioning device, including: Guide sleeve (10), annular step portion (11) is provided along the circumference of the guide sleeve (10), bushing (50) is sleeved in the annular step portion (11), the guide sleeve (10) is connected with positioning member (12) by elastic member, the positioning member (12) is used to be arranged with wire slot in the inner wall of the bushing (50) Line slot joint cooperation is realized the radial positioning of the bushing (50) with the guide sleeve (10), the guide sleeve (10) is also provided with positioning groove (13); Calibration piece, the calibration piece is used to be inserted into the positioning groove (13) and realize the radial positioning of the guide sleeve (10) and cylinder; Checking member (20), be located in the moving path when the guide sleeve (10) is pulled and pressed, the checking member (20) is used to cooperate with the guide sleeve (10) and realize the axial positioning of bushing (50) and cylinder.

2. The diesel engine cylinder liner puller positioning tool of claim 1, wherein, The checking member (20) includes: Mounting plate (21); Scale (22), fixedly arranged on the mounting plate (21); Fixed plate (23), fixedly arranged on the mounting plate (21), the fixed plate (23) is fixedly provided with connecting rod (25), and the connecting rod (25) is sleeved with spring (251); Movable plate (24), connected with the spring (251), movably arranged on the mounting plate (21), used for abutting cooperation with the guide sleeve (10), the movable plate (24) is fixedly provided with indicating element (26), and the indicating element (26) is used to cooperate with the scale (22) and indicate the axial position of the guide sleeve (10), to determine whether bushing (50) oil hole and cylinder inclined oil hole are aligned.

3. The diesel engine cylinder liner puller positioning tool of claim 2, wherein, The checking member (20) further includes: Guide rod (27), one end is fixedly arranged on the fixed plate (23); Guide sleeve (28), fixedly arranged on the movable plate (24), and slidably connected with the guide rod (27).

4. The diesel engine cylinder liner puller positioning tool of claim 3, wherein, The number of the guide rod (27) is two, and the two guide rods (27) are symmetrically arranged on the two sides of the connecting rod (25), and the guide sleeve (28) corresponds to the guide rod (27) one by one.

5. The diesel engine cylinder liner puller positioning tool of claim 4, wherein, The mounting plate (21) is L-shaped, the scale (22) is fixedly arranged on the side bottom of the mounting plate (21) by fastener, and the indicating element (26) is located below the scale (22).

6. The diesel engine cylinder liner puller positioning tool of claim 5, wherein, The top of the mounting plate (21) is provided with connecting piece (211) for mounting the checking member (20) on the cylinder.

7. The diesel engine cylinder liner puller positioning tool of any one of claims 1 to 6, wherein, The side surface of the guide sleeve (10) is provided with gland (30), the gland (30) is connected with the guide sleeve (10), the bushing (50) is clamped between the gland (30) and the bushing (50), the gland (30) is provided with through hole (31), and the gland (30) is connected with pulling and pressing device through the through hole (31), to drive the guide sleeve (10) to move and pull and press.

8. The diesel engine cylinder liner puller positioning tool of claim 7, wherein, The side, away from the bushing (50), of the gland (30) is fixedly provided with washer (40).

9. The diesel engine cylinder liner puller positioning tool of claim 1, wherein, The elastic member is cylindrical spring, and the cylindrical spring is arranged along the radial direction of the guide sleeve (10).

10. The diesel engine cylinder liner puller positioning tool of claim 1, wherein, The calibration piece is a detection rod, and the diameter of the detection rod is less than the diameter of the inclined oil hole of the cylinder.

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