Multi-model flat notch connecting rod expanding device

Abstract

The utility model relates to the technical field of engine connecting rod expansion breaking, in particular to a multi-model flat notch connecting rod expansion device. The device comprises a workbench, a connecting rod small end positioning seat, a connecting rod large end positioning seat arranged on the workbench and a separating mechanism, the connecting rod small end positioning seat comprises a positioning column which is fixedly arranged on the workbench and used for being inserted into a connecting rod small end hole. The connecting rod big end positioning seat comprises a stepped stand which radially expands from top to bottom, and the stepped stand comprises a stand fixed end and a stand movable end; the stand movable end is arranged on the side, away from the connecting rod small end positioning base, of the stand fixed end and used for being inserted into a connecting rod large end hole to move and separate the connecting rod cover. The separating mechanism comprises a first telescopic driving part which is arranged on the workbench, is in transmission connection with the movable end of the stand and is used for driving the movable end of the stand to move away from the fixed end of the stand. According to the device, the step-column-shaped connecting rod large-head positioning seat and the columnar connecting rod small-head positioning seat are adopted, so that the device is suitable for operating connecting rods of different specifications, the universality is high, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of engine connecting rod expansion and breaking, in particular to a multi-type flat-cut connecting rod expansion and breaking device. Background Art

[0002] In the engine assembly line, many flat-cut connecting rods cannot be disassembled after the connecting rod bolts are removed, and the connecting rod cap and the connecting rod body fit tightly. Therefore, it is necessary to separate the connecting rod cap from the connecting rod body by expanding after the connecting rod bolts are removed. Conventional connecting rod expansion devices can only operate connecting rods of a single specification model, and cannot operate engine connecting rods of multiple specifications. Utility Model Content

[0003] The main purpose of the utility model is to solve the deficiencies of the above-mentioned background technology and provide a multi-type flat-cut connecting rod expansion device.

[0004] The technical solution adopted by the utility model is: a multi-machine flat-cut connecting rod expansion device, including a workbench,

[0005] A connecting rod small end positioning seat, the connecting rod small end positioning seat comprising a positioning column fixed on the workbench for inserting into the connecting rod small end hole;

[0006] A connecting rod big end positioning seat, the connecting rod big end positioning seat is arranged on a workbench, the connecting rod big end positioning seat comprises a stepped platform column radially expanding from top to bottom, the stepped platform column comprises a platform column fixed end and a platform column movable end; the platform column movable end is arranged on a side of the platform column fixed end away from the connecting rod small end positioning seat, and is used to be inserted into the connecting rod big end hole to move and separate the connecting rod cover;

[0007] The separation mechanism includes a first telescopic driving member arranged on the workbench and transmission-connected to the movable end of the column, and is used to drive the movable end of the column to move in a direction away from the fixed end of the column.

[0008] Furthermore, the first telescopic driving member can be vertically telescopically fixed on the workbench, a first hinged member is hinged on the first telescopic end of the first telescopic driving member, and an end of the first hinged member away from the first telescopic end is hinged to the movable end of the platform column.

[0009] Furthermore, a telescopic member mounting seat is fixedly connected to the workbench, and the telescopic member mounting seat includes a mounting plate fixedly connected to the first telescopic driving member and vertical plates hinged at both ends of the mounting plate; the end of the vertical plate away from the mounting plate is fixedly connected to the workbench; the first telescopic end vertically slides through the mounting plate and is hinged with a second hinge; the second hinge is hinged to the workbench at one end away from the first telescopic end, the second hinge and the first hinge are arranged on opposite sides of the first telescopic end, and the rotation axes of the second hinge, the first hinge and the mounting plate are all parallel.

[0010] Furthermore, the first telescopic driving member is a first cylinder.

[0011] Furthermore, the workbench is provided with a first slide groove; the movable end of the column is fixedly connected with a movable connecting seat; the end of the movable connecting seat away from the movable end of the column slides through the first slide groove and then is hinged to the end of the first hinged member away from the first telescopic end.

[0012] Furthermore, a guide slide bar is provided in the first slide groove; and the movable connection seat is slidably sleeved on the guide slide bar.

[0013] Furthermore, it also includes a fixing fixture, which is fixed on a workbench and is used to clamp and fix the small end of the connecting rod.

[0014] Furthermore, the fixing fixture includes a second telescopic driving member, and the second telescopic driving member is provided with a second telescopic end; a clamping plate is provided on the second telescopic end for clamping and fixing the small end of the connecting rod.

[0015] Furthermore, the second telescopic driving member comprises a double-axis cylinder, and the two telescopic shafts of the double-axis cylinder are arranged in opposite directions to move in opposite directions; the clamping plate is fixed on the telescopic shaft of the double-axis cylinder.

[0016] Furthermore, the double-axis cylinder is fixed on the bottom surface of the workbench; a second slide groove is penetrated on the workbench along the moving direction of the telescopic axis; the clamping plate is penetrated by the second slide groove and can slide axially along the second slide groove.

[0017] Furthermore, a clamping block is provided on the inner side of the clamping plate, and a side of the clamping block away from the clamping plate is in an arc-shaped structure bent toward one side of the clamping plate.

[0018] The beneficial effects of the utility model include: 1. The connecting rod big end positioning seat in the shape of a stepped platform column is adapted to be plugged and fixed in the connecting rod big end holes of different specifications, and the connecting rod small end positioning seat is plugged in the connecting rod small end hole to position the connecting rod small end, which can realize the installation of connecting rods of different specifications, and has high versatility; the separation mechanism can drive the movable end of the platform column plugged in the connecting rod big end hole to move back to the fixed end of the platform column, thereby expanding the connecting rod cover;

[0019] 2. The vertical telescopic arrangement of the first telescopic driving member can save horizontal space and facilitate the installation of other devices; the first hinged member adopts a hinged connection at both ends, and the first telescopic end can drive the movable end of the column to move when it is extended and retracted, which has a simple structure and is easy to use;

[0020] 3. The telescopic member mounting seat can make the first telescopic driving member swing when telescoping, and the second hinged member is connected to the workbench to support the first telescopic end, so as to more efficiently transmit the torque to the first hinged member;

[0021] 4. The first hinged member drives the movable end of the column to move through the slide groove and the movable mounting seat, and the first telescopic driving member can be arranged at the bottom of the workbench to save table space;

[0022] 5. The guide slide rod guides the movement of the movable connection seat;

[0023] 6. The fixing fixture can more stably and reliably clamp the small end of the connecting rod, avoid the positioning column from being unable to be accurately positioned, and achieve the connection rod expansion and breaking of more specifications;

[0024] 7. The fixing fixture has a simple structure and is easy to use. The second telescopic driving member is used to drive the clamping plate to move to clamp and fix the small end of the connecting rod;

[0025] 8. Use a double-axis cylinder as the second telescopic drive component, which can synchronously move the two clamping plates in opposite directions, and has its own positioning function to clamp and fix the small end of the connecting rod;

[0026] 9. The double-axis cylinder is arranged at the bottom of the workbench to save the workbench space, and the clamping plate can be extended through the second slide to clamp the small end of the connecting rod;

[0027] 10. The arc-shaped structure of the clamping block can effectively clamp and fix the small ends of connecting rods with different outer diameters.

[0028] The connecting rod big end positioning seat of the utility model adopts a stepped column structure, and the connecting rod small end positioning seat is inserted in the small end positioning hole, which can be adapted to position connecting rods of different specifications; the fixed end of the stepped column can limit the connecting rod big end, and the movable end of the column can move back to the fixed end of the column to separate the connecting rod cover from the connecting rod body; the overall structure of the device is simple, easy to use, highly universal, and has great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 : Schematic diagram of the structure of a multi-model flat-cut connecting rod expansion device;

[0030] Figure 2 : Schematic diagram of the structure of a multi-model flat-cut connecting rod expansion device with connecting rods of different specifications installed;

[0031] Figure 3 : Schematic diagram of the top view of the connecting rod installation structure of the multi-model flat-cut connecting rod expansion device;

[0032] Figure 4 : Schematic diagram of the three-dimensional structure of the telescopic member mounting seat;

[0033] Among them: 1-workbench; 2-connecting rod small end positioning seat; 3-connecting rod big end positioning seat; 31-column movable end; 32-column fixed end; 4-first telescopic drive member; 41-first telescopic end; 5-first hinged member; 6-second hinged member; 7-telescopic member mounting seat; 71-mounting plate; 72-vertical plate; 73-pin shaft hole; 8-first slide groove; 9-movable connecting seat; 10-guide slide rod; 11-second telescopic drive member; 12-clamp plate; 13-second slide groove; 14-connecting rod; 15-clamping block. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] The utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] The utility model relates to a multi-model flat-cut connecting rod expansion device, which is used for expanding and breaking and separating a connecting rod cover and a connecting rod body. The device adopts a connecting rod big end positioning seat 3 in the shape of a stepped platform column, which is suitable for being plugged and fixed in the connecting rod big end holes of different specifications, and uses a connecting rod small end positioning seat 2 to be plugged in the connecting rod small end hole to position the connecting rod small end, so that connecting rods 14 of different specifications can be installed, thereby solving the problem that conventional connecting rod expansion devices cannot operate connecting rods 14 of various specifications.

[0039] A multi-model flat-cut connecting rod expansion device, specifically, Figures 1 to 4As shown, it includes a workbench 1, a connecting rod small end positioning seat 2, a connecting rod big end positioning seat 3 and a separation mechanism; the connecting rod small end positioning seat 2 includes a positioning column fixedly arranged on the workbench 1 for being inserted into the connecting rod small end hole; the connecting rod big end positioning seat 3 is arranged on the workbench 1, and the connecting rod big end positioning seat 3 includes a stepped column radially expanding from top to bottom, and the diameter of each section of the stepped column conforms to the aperture size of the connecting rod big end hole of connecting rods of different specifications, and is used for inserting into the connecting rod big end hole for positioning, and the stepped column includes a column fixed end 32 and a column movable end 31, and when the column movable end 31 abuts against the column fixed end 32 The formed stepped column side wall abuts against the inner wall of the connecting rod big end hole to position the connecting rod big end; the column movable end 31 is arranged on the side of the column fixed end 32 away from the connecting rod small end positioning seat 2, and is used to insert into the connecting rod big end hole and move to separate the connecting rod cover; the separation mechanism includes a first telescopic driving member 4 arranged on the workbench 1 and connected to the column movable end 31, which is used to drive the column movable end 31 to move in a direction away from the column fixed end 32. When the column movable end 31 moves, the side wall abuts against the connecting rod cover and drives the connecting rod cover to move and separate it from the connecting rod body. The first cylinder can be selected as the first telescopic driving member 4. In some embodiments, the positioning column is also a stepped column that expands from top to bottom. When the connecting rod small end holes of connecting rods 14 of different specifications have different diameters and different axes, the positioning column is arranged in the part where the connecting rod small end holes of different specifications are inserted to abut against the connecting rod small end hole wall close to or away from the connecting rod big end for positioning.

[0040] Preferably, the movable end 31 of the column is a columnar structure with a fan-shaped cross section, and the central angle of the fan is particularly but not limited to 120°. The fixed end 32 of the column is adapted to fit the movable end 31 of the column to form a cylindrical stepped columnar structure.

[0041] In one embodiment, Figures 1 to 3 As shown, the first telescopic drive member 4 can be vertically telescopically fixed on the workbench 1. The first telescopic drive member 4 includes a first fixed end and a first telescopic end 41. The first fixed end is bolted to the workbench 1. The first telescopic end 41 is hinged with a first hinge 5. The end of the first hinge 5 away from the first telescopic end 41 is hinged to the movable end 31 of the column. The rotation axes of the two ends of the first hinge 5 are parallel and perpendicular to the axial direction of the connecting rod. A telescopic cylinder or a telescopic oil cylinder can be selected as the first telescopic drive member 4. After the connecting rod 14 is sleeved and installed on the connecting rod big end positioning seat 3 and the connecting rod small end positioning seat 2, the first telescopic drive member 4 is started. When the first telescopic end 41 is telescoped, the movable end 31 of the column is driven to move away from the fixed end 32 of the column through the first hinge 5, thereby expanding the connecting rod cover connected to the connecting rod body.

[0042] like Figures 1-2As shown, in one embodiment, a telescopic member mounting seat 7 is fixedly connected to the workbench 1 for mounting the first telescopic driving member 4. The telescopic mounting seat includes two vertical plates 72 and a mounting plate 71. The vertical plate 72 is bolted to the workbench 1. A pin hole 73 is provided on the vertical plate 72. Pins are provided at both ends of the mounting plate 71. The pins at both ends of the mounting plate 71 are respectively inserted into the pin holes 73 of the two vertical plates 72, so that the mounting plate 71 can be hinged on the vertical plate 72 to rotate around the pins; the first telescopic driving member 4 is fixedly connected to the mounting plate 71 at a first fixed end opposite to the first telescopic end 41, and the first telescopic end 41 is hinged to the second hinge 6 after vertically sliding through the mounting plate 71. The end of the second hinge 6 away from the first telescopic end 41 is hinged to the workbench 1, and the second hinge 6 and the first hinge 5 are arranged on the left and right sides opposite to the first telescopic end 41. The rotation axes of the mounting plate 71, the second hinge 6 and the first hinge 5 are all arranged in parallel. Preferably, the first hinge 5, the second hinge 6 and the first telescopic end 41 are connected to form a Y-shaped structure. Compared with using only the first hinge 5 to push the movable end 31 of the column to move, the second hinge 6 can support the first telescopic end 41 on the opposite side, which is equivalent to supporting the first hinge 5, so that the movable end 31 of the column moves away from the direction of the small end of the connecting rod, and the torque is more efficiently transmitted to the first hinge 5; the first hinge 5 and the second hinge 6 can both use a rod-shaped structure. In order to make the first telescopic end 41 retractable after the second hinge 6 is hinged, the mounting plate 71 is hinged on the vertical plate 72 so that the first telescopic drive member 4 can rotate around the pin shaft when it is extended and retracted. When the first telescopic end 41 is extended, the first telescopic drive member 4 is rotated around the pin shaft by the force of the second hinge 6, causing the first telescopic end 41 to move toward the side of the first hinge 5, thereby achieving more efficient transmission of torque.

[0043] like Figure 1 As shown, in some embodiments, the workbench 1 is provided with a first slide groove 8 arranged axially along the connecting rod 14, and the bottom of the movable end 31 of the column is fixedly connected to an oil movable connecting seat 9, which is provided with the first slide groove 8 and can slide axially along the first slide groove 8, that is, the movable connecting seat 9 is a movable slider, and the bottom end of the movable connecting seat 9 is hinged to the end of the first hinged member 5 away from the first telescopic end 41. Through the first slide groove 8, the first telescopic driving member 4 can be arranged on the bottom surface of the workbench 1, so that the first hinged member 5 is connected to the movable end 31 of the column through the movable connecting seat 9 through the first slide groove 8, which can save the workbench 1 table space.

[0044] like Figure 1As shown, based on the setting of the above-mentioned first slide groove 8, in one embodiment, a guide slide rod 10 is provided in the first slide groove 8 along the axial direction of the first slide groove 8, and the guide slide rod 10 can be bolted to the workbench 1, and the movable connecting seat 9 is sleeved on the guide slide rod 10 and can slide axially along the guide slide rod 10. The guide slide rod 10 can provide a guiding effect for the movement of the movable connecting seat 9, so that the movable end 31 of the platform column can move accurately along the direction of the guide slide rod 10, thereby avoiding the deviation in the moving direction from aggravating the wear of the first hinge 5 and extending the use time.

[0045] In one embodiment, Figures 1 to 3 As shown, the device also includes a fixing fixture, which is fixed on the workbench 1 and is used to clamp and fix the small end of the connecting rod, thereby enhancing the fixing effect on the small end of the connecting rod and being adaptable to fix connecting rods 14 of more specifications.

[0046] In one embodiment, Figures 1-2 As shown, the fixing fixture includes a second telescopic driving member 11 and a clamping plate 12. The second telescopic driving member 11 is provided with a second telescopic end. The clamping plate 12 is fixed on the second telescopic end and is used to clamp and fix the small end of the connecting rod.

[0047] In actual use, two second telescopic driving members 11 can be relatively arranged on both sides of the connecting rod small end positioning seat 2, so that the telescopic directions of the two second telescopic driving members 11 are coaxial, and the two clamping plates 12 are contracted to move toward each other to clamp the connecting rod small end.

[0048] In one embodiment, the second telescopic driving member 11 is a double-axis cylinder, and the two telescopic shafts of the double-axis cylinder are arranged in opposite directions to move in opposite directions; the clamping plate 12 is fixed on the telescopic shaft of the double-axis cylinder. The double-axis cylinder is used as the second telescopic driving member 11, and the two clamping plates 12 can be moved in opposite directions synchronously. It has its own positioning function to achieve clamping and fixing the small end of the connecting rod.

[0049] like Figure 1 As shown, the double-axis cylinder is fixed to the bottom surface of the workbench 1 through a cylinder mounting seat, and two second slide grooves 13 are penetrated on the workbench 1 along the moving direction of the telescopic axis of the double-axis cylinder. The two clamps 12 are respectively penetrated by the two second slide grooves 13 and can slide axially along the second slide grooves 13. The double-axis cylinder is arranged on the bottom surface of the workbench 1 to save table space, and the clamps 12 are extended through the second slide grooves 13 to clamp the small end of the connecting rod.

[0050] In certain embodiments, such as Figure 3 As shown, a clamping block 15 is provided on the inner side of the splint 12, and an arc structure bent toward the outer side is provided on the inner side of the clamping block 15 for adapting to clamping connecting rod heads of different specifications. The clamping block 15 can be made of polyurethane material to avoid scratching the connecting rod 14 during clamping.

[0051] During actual use, the big end of the connecting rod 14 is sleeved on the corresponding size step on the stepped column, and the small end of the connecting rod is sleeved on the positioning column. The fixing clamp is started to shrink the telescopic shaft of the double-axis cylinder, and the clamps 12 move toward each other to clamp and fix the small end of the connecting rod through the clamping block 15. Then the first telescopic driving component 4 is started. Since the first fixed end is hinged on the vertical plate 72, the first telescopic end 41 extends and moves upward, and moves toward the side of the first hinge 5 under the support of the second hinge 6. The first hinge 5 drives the movable connecting seat 9 to slide to the left on the guide slide rod 10, thereby driving the movable end 31 of the column to move to the left, and separating the connecting rod cover connected to the connecting rod body.

[0052] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A multi-machine flat-cut connecting rod expansion device, comprising a workbench (1), characterized in that: Also includes, A connecting rod small end positioning seat (2), the connecting rod small end positioning seat (2) comprising a positioning column fixedly arranged on the workbench (1) and used for being inserted into the connecting rod small end hole; A connecting rod big end positioning seat (3), the connecting rod big end positioning seat (3) is arranged on the workbench (1), the connecting rod big end positioning seat (3) comprises a stepped platform column radially expanding from top to bottom, the stepped platform column comprises a platform column fixed end (32) and a platform column movable end (31); the platform column movable end (31) is arranged on a side of the platform column fixed end (32) away from the connecting rod small end positioning seat (2), and is used for inserting into the connecting rod big end hole to move and separate the connecting rod cover; The separation mechanism comprises a first telescopic driving member (4) disposed on the workbench (1) and drivingly connected to the movable end (31) of the column, and used for driving the movable end (31) of the column to move in a direction away from the fixed end (32) of the column.

2. A multi-machine flat-cut connecting rod expansion device as claimed in claim 1, characterized in that: The first telescopic driving member (4) is fixedly mounted on the workbench (1) in a vertically telescopic manner, and a first hinged member (5) is hingedly connected to a first telescopic end (41) of the first telescopic driving member (4), and an end of the first hinged member (5) away from the first telescopic end (41) is hingedly connected to a movable end (31) of the platform column.

3. A multi-model flat-cut connecting rod expansion device as claimed in claim 2, characterized in that: The workbench (1) is fixedly connected with a telescopic member mounting seat (7), and the telescopic member mounting seat (7) comprises a mounting plate (71) fixedly connected to the first telescopic driving member (4) and vertical plates (72) hinged at both ends of the mounting plate (71); the vertical plate (72) is fixedly connected to the workbench (1) at one end away from the mounting plate (71); the first telescopic end (41) vertically slides through the mounting plate (71) and is hinged with a second hinge (6); the second hinge (6) is hinged on the workbench (1) at one end away from the first telescopic end (41), the second hinge (6) and the first hinge (5) are arranged on opposite sides of the first telescopic end (41), and the rotation axes of the second hinge (6), the first hinge (5) and the mounting plate (71) are parallel.

4. A multi-machine flat-cut connecting rod expansion device as claimed in any one of claims 2 or 3, characterized in that: The workbench (1) is provided with a first slide groove (8); the movable end (31) of the platform column is fixedly connected with a movable connecting seat (9); the end of the movable connecting seat (9) away from the movable end (31) of the platform column slides through the first slide groove (8) and then is hinged to the end of the first hinged member (5) away from the first telescopic end (41).

5. A multi-model flat-cut connecting rod expansion device as claimed in claim 4, characterized in that: A guide slide bar (10) is arranged in the first slide groove (8); and the movable connection seat (9) is slidably sleeved on the guide slide bar (10).

6. A multi-model flat-cut connecting rod expansion device as claimed in claim 1, characterized in that: It also comprises a fixing clamp, which is fixed on the workbench (1) and is used for clamping and fixing the small end of the connecting rod.

7. A multi-machine flat-cut connecting rod expansion device as claimed in claim 6, characterized in that: The fixing fixture comprises a second telescopic driving member (11), and the second telescopic driving member (11) is provided with a second telescopic end; a clamping plate (12) is provided on the second telescopic end for clamping and fixing the small end of the connecting rod.

8. A multi-machine flat-cut connecting rod expansion device as claimed in claim 7, characterized in that: The second telescopic driving member (11) comprises a double-axis cylinder, the two telescopic shafts of which are arranged in opposite directions to move in opposite directions; the clamping plate (12) is fixedly mounted on the telescopic shafts of the double-axis cylinder.

9. A multi-machine flat-cut connecting rod expansion device as claimed in claim 8, characterized in that: The double-axis cylinder is fixed on the bottom surface of the workbench (1); a second slide groove (13) is penetrated on the workbench (1) along the moving direction of the telescopic axis; the clamping plate (12) is penetrated by the second slide groove (13) and can slide axially along the second slide groove (13).

10. A multi-machine flat-cut connecting rod expansion device as claimed in any one of claims 7 to 9, characterized in that: A clamping block (15) is provided on the inner side of the clamping plate (12), and the side of the clamping block (15) away from the clamping plate (12) is in an arc-shaped structure that bends toward the side of the clamping plate (12).

Images