Milling clamp for inclined plane of small end of connecting rod

Abstract

The milling clamp comprises a base, a machining table is fixedly connected to the end face of the base, a first positioning seat is fixedly connected to the left side of the machining table, a second positioning seat is fixedly connected to the right side of the machining table, and a connecting rod small end fixing structure is installed on the edge of the left side of the machining table. By installing the connecting rod big end fixing structure, the sliding block slides in the sliding groove according to the size of the big end of the connecting rod, and the height position of the second pressing plate is adjusted according to the thickness of the connecting rod till the second pressing plate presses the big end of the connecting rod. The sliding block can be detached in a sliding mode and reinstalled at a proper position to fix the large end of the connecting rod, the installed connecting rod small end fixing structure enables the clamping plate to be extruded at the small end of the connecting rod through adjustment, then the connecting rod fixing range is widened, and the connecting rod small end fixing structure and the connecting rod large end fixing structure are matched with each other to fix the large end of the connecting rod. And therefore, the stability of the connecting rod is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting rod processing, in particular to a connecting rod small head inclined surface milling fixture. Background Art

[0002] The big end of the connecting rod is used to connect to the crankshaft, and the small end of the connecting rod is used to connect to the piston. The two end surfaces of the small end of the connecting rod are composed of an inclined surface and a narrow plane. The design of this wedge-shaped structure can increase its pressure-bearing area to improve the strength and rigidity of the piston. Therefore, during the processing of the connecting rod, the connecting rod needs to be fixed by a clamp and the small end needs to be beveled to ensure the stability of the connecting rod position.

[0003] The existing connecting rod milling fixture is to set positioning seats at the big end and the small end of the connecting rod respectively for limiting. The structure is simple and the stability effect is poor. In addition, some fixtures cannot position the connecting rod according to the thickness and size of the connecting rod. Utility Model Content

[0004] The utility model aims to provide a connecting rod small end inclined surface milling fixture to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a connecting rod small end bevel milling fixture, including a base, a processing table fixedly connected to the end face of the base, a positioning seat one fixedly connected to the left side of the processing table, a positioning seat two fixedly connected to the right side of the processing table, a connecting rod small end fixing structure installed at the left edge of the processing table, a connecting rod large end fixing structure slidably installed on the right side of the processing table and located outside the positioning seat two, and a connecting rod body clamping structure installed in the middle of the processing table.

[0006] The connecting rod small end fixing structure comprises a moving assembly, the top side of the moving assembly is fixedly connected with a mounting seat, the bottom side of the mounting seat is slidably connected with the end surface of the processing table, and a clamping plate is bolted on the mounting seat.

[0007] The connecting rod big end fixing structure comprises a sliding block, a screw rod is fixedly connected to the top side of the sliding block, and a second pressing plate is sleeved on the outer side of the screw rod.

[0008] As a further preferred embodiment of the technical solution, the end surface of the base is provided with a slide groove, the processing table is provided with a rectangular groove, the rectangular groove is located above the slide groove, and a mounting groove is provided on the left side of the processing table.

[0009] As a further preferred embodiment of the present technical solution, a connecting rod body is sleeved on the positioning seat one and the positioning seat two, the small hole of the connecting rod body is sleeved on the outside of the positioning seat one, and the large hole of the connecting rod body is sleeved on the outside of the positioning seat two.

[0010] In the above technical solution, the positioning seat 1 and the positioning seat 2 are provided to pre-position the large end and the small end of the connecting rod.

[0011] As a further preferred embodiment of the present technical solution, the moving component includes a screw rod, which is in a mounting groove through a bearing, a sleeve is threadedly connected to the outer wall of the screw rod, the top side of the sleeve is connected to the mounting seat, and a knob is fixedly connected to the left side of the screw rod.

[0012] In the above technical solution, the clamp is squeezed onto the small end of the connecting rod through adjustment, which facilitates adjustment and thereby increases the fixing range of the connecting rod.

[0013] As a further preferred embodiment of the present technical solution, the connecting rod body clamping structure includes a hydraulic cylinder, and the output end of the hydraulic cylinder is rotatably connected to a pressure plate 1, and the pressure plate 1 is in contact with the middle part of the connecting rod body.

[0014] In the above technical solution, the hydraulic cylinder is capable of adjusting the height position of the pressure plate 1 according to the thickness of the connecting rod body, and the pressure plate 1 is pressed tightly against the connecting rod body by rotation.

[0015] As a further preferred embodiment of the present technical solution, a pressing plate 1 is sleeved under the screw, and the pressing plate 1 is in extrusion contact with the processing table, a nut 1 is threadedly connected to the outer wall of the screw and located above the pressing plate 1, a nut 2 is threadedly connected to the outer wall above the screw, and the nut 2 is located on the bottom side of the second pressing plate, a pressing plate 2 is sleeved on the outer wall above the screw, and the pressing plate 2 is in extrusion contact with the top side of the second pressing plate, and a nut 3 is threadedly connected to the outer wall above the screw and located above the pressing plate 2.

[0016] In the above technical solution, the slider is slid in the slide groove according to the size of the big end of the connecting rod, and the height position of the second pressing plate is adjusted according to the thickness of the connecting rod until the second pressing plate is pressed tightly against the big end of the connecting rod.

[0017] As a further preferred embodiment of the present technical solution, a through slot is provided on the second pressing plate, and a pad is provided on the bottom side of one end of the through slot close to the second positioning seat.

[0018] The utility model provides a connecting rod small end inclined surface milling fixture, which has the following beneficial effects:

[0019] (1) The utility model installs a connecting rod big end fixing structure, slides a slider in a slide groove according to the size of the connecting rod big end, and adjusts the height position of the pressure plate 2 according to the thickness of the connecting rod until the pressure plate 2 is pressed tightly against the big end of the connecting rod, and the slider can be disassembled by sliding and reinstalled in a suitable position to fix the big end of the connecting rod, which has better applicability. In addition, the connecting rod small end fixing structure installed can make the splint squeeze against the small end of the connecting rod through adjustment, which is convenient for adjustment and thus increases the fixing range of the connecting rod. The connecting rod small end fixing structure cooperates with the connecting rod big end fixing structure to thereby improve the stability of the connecting rod and facilitate the milling of the inclined surface of the small end.

[0020] (2) The utility model can pre-position the large end and the small end of the connecting rod by providing positioning seat 1 and positioning seat 2. In addition, the hydraulic cylinder can adjust the height position of the pressure plate 1 according to the thickness of the connecting rod body. The pressure plate 1 can be pressed against the connecting rod body by rotation, thereby further improving the fixing effect of the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the connecting rod small end inclined surface milling fixture of the utility model;

[0022] Figure 2 The utility model is Figure 1 Schematic diagram of the split structure;

[0023] Figure 3 The utility model is Figure 2 A schematic diagram of the structure of the regulating component;

[0024] Figure 4 The utility model is Figure 1 Structural schematic diagram of the connecting rod big end fixing structure;

[0025] Figure 5 The utility model is Figure 2 A magnified view of Figure A;

[0026] In the figure: 1. base; 11. slide groove; 12. processing table; 13. rectangular groove; 14. mounting groove; 2. positioning seat 1; 3. positioning seat 2; 4. connecting rod body; 5. connecting rod small end fixing structure; 51. moving assembly; 511. screw rod; 512. knob; 513. sleeve; 52. mounting seat; 53. splint; 6. connecting rod body clamping structure; 61. hydraulic cylinder; 62. pressure plate 1; 7. connecting rod big end fixing structure; 71. slider; 72. screw rod; 721. pressure plate 1; 722. nut 1; 723. nut 2; 724. pressure plate 2; 725. nut 3; 73. pressure plate 2; 731. through groove; 732. pad. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] The utility model provides a technical solution: Figure 1 and Figure 3 As shown, in this embodiment, a connecting rod small head inclined surface milling fixture comprises a base 1, a processing table 12 is fixedly connected to the end surface of the base 1, a positioning seat 1 2 is fixedly connected to the left side of the processing table 12, a positioning seat 2 3 is fixedly connected to the right side of the processing table 12, a connecting rod small head end fixing structure 5 is installed at the left edge of the processing table 12, a connecting rod big head end fixing structure 7 is slidably installed on the right side of the processing table 12 and located outside the positioning seat 2 3, a connecting rod body clamping structure 6 is installed in the middle of the processing table 12, a slide groove 11 is arranged on the end surface of the base 1, a rectangular groove 13 is arranged on the processing table 12, the rectangular groove 13 is located above the slide groove 11, and an installation groove 14 is opened on the left side of the processing table 12, a connecting rod body 4 is sleeved on the positioning seat 1 2 and the positioning seat 2 3, the small hole of the connecting rod body 4 is sleeved on the outside of the positioning seat 1 2, and the large hole of the connecting rod body 4 is sleeved on the outside of the positioning seat 2 3, and the positioning seat 1 2 and the positioning seat 2 3 are provided, The big head end and the small head end of the connecting rod can be pre-positioned in advance.

[0029] like Figure 2 and Figure 3 As shown, the connecting rod small end fixing structure 5 includes a moving component 51, and the moving component 51 has a mounting seat 52 fixedly connected to the top side, and the mounting seat 52 is slidably connected to the end surface of the processing table 12 on the bottom side, and a clamping plate 53 is bolted to the mounting seat 52. The moving component 51 includes a screw rod 511, and the screw rod 511 is in the mounting groove 14 through a bearing. The outer wall of the screw rod 511 is threadedly connected with a sleeve 513, and the top side of the sleeve 513 is connected to the mounting seat 52, and the left side of the screw rod 511 is fixedly connected with a knob 512. The installed connecting rod small end fixing structure 5 can make the clamping plate 53 squeeze on the small end of the connecting rod through adjustment, which is convenient for adjustment, thereby increasing the range of connecting rod fixing, and the connecting rod small end fixing structure 5 cooperates with the connecting rod large end fixing structure 7 to improve the stability of the connecting rod, which is beneficial to the milling of the bevel of the small end.

[0030] like Figure 2 As shown, the connecting rod body clamping structure 6 includes a hydraulic cylinder 61, and the output end of the hydraulic cylinder 61 is rotatably connected to a pressure plate 62, and the pressure plate 62 contacts the middle part of the connecting rod body 4. The hydraulic cylinder 61 is set to be able to adjust the height position of the pressure plate 62 according to the thickness of the connecting rod body. The pressure plate 62 is pressed on the connecting rod body by rotation, thereby further improving the fixing effect of the connecting rod.

[0031] like Figure 2 , Figure 4 and Figure 5As shown, the connecting rod big end fixing structure 7 includes a slider 71, a screw 72 is fixedly connected to the top side of the slider 71, a second pressing plate 73 is sleeved on the outer side of the screw 72, a pressing sheet 1 721 is sleeved below the screw 72, the pressing sheet 1 721 is in extrusion contact with the processing table 12, a nut 1 722 is threadedly connected to the outer wall of the screw 72 and located above the pressing sheet 1 721, a nut 2 723 is threadedly connected to the outer wall above the screw 72, and the nut 2 723 is located on the bottom side of the pressing plate 2 73, a pressing sheet 2 724 is sleeved on the outer wall above the screw 72, and the pressing sheet 2 724 is in extrusion contact with the top side of the pressing plate 2 73, the screw A nut three 725 is threadedly connected to the outer wall above 72 and located above the pressure plate two 724. A through groove 731 is opened on the pressure plate two 73. A pad 732 is arranged on the bottom side of one end of the through groove 731 close to the positioning seat two 3. By installing the connecting rod big end fixing structure 7, the slider 71 is slid in the slide groove 11 according to the size of the big end of the connecting rod, and the height position of the pressure plate two 73 is adjusted according to the thickness of the connecting rod, until the pressure plate two 73 is pressed tightly against the big end of the connecting rod, and the slider 71 can be disassembled and reinstalled in a suitable position by sliding to fix the big end of the connecting rod, which has better applicability.

[0032] The utility model provides a connecting rod small head inclined surface milling fixture, the specific working principle is as follows: the connecting rod is pre-positioned by positioning seat 1 2 and positioning seat 2 3, and then the knob 512 is turned to drive the screw rod 511 to rotate, so that the sleeve 513 moves on the screw rod 511 until the clamping plate 53 fixes the small head end of the connecting rod; then the slider 71 is slid in the slide groove 11, and the pressing plate 1 721 is pressed on the processing table 12 by the nut 1 722, the slider 71 is limited, and the height position of the pressing plate 2 73 is adjusted according to the thickness of the large head end of the connecting rod, until the pad 732 is pressed on the large head end of the connecting rod, and it is limited by the nut 2 723, the pressing plate 2 724 and the nut 3 725; then the hydraulic cylinder 61 is started according to the thickness of the connecting rod body so that the pressing plate 1 62 is located on the upper surface of the connecting rod body, and the pressing plate 1 62 can be rotated to press and fix it.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connecting rod small end bevel milling fixture, comprising a base (1), characterized in that: A processing table (12) is fixedly connected to the end surface of the base (1), a positioning seat 1 (2) is fixedly connected to the left side of the processing table (12), a positioning seat 2 (3) is fixedly connected to the right side of the processing table (12), a connecting rod small end fixing structure (5) is installed at the left edge of the processing table (12), a connecting rod large end fixing structure (7) is slidably installed on the right side of the processing table (12) and located outside the positioning seat 2 (3), and a connecting rod body clamping structure (6) is installed in the middle of the processing table (12); The connecting rod small end fixing structure (5) comprises a moving assembly (51), the top side of the moving assembly (51) is fixedly connected to a mounting seat (52), the bottom side of the mounting seat (52) is slidably connected to the end surface of the processing table (12), and a clamping plate (53) is bolted to the mounting seat (52); The connecting rod big end fixing structure (7) comprises a sliding block (71), a screw rod (72) is fixedly connected to the top side of the sliding block (71), and a second pressing plate (73) is sleeved on the outer side of the screw rod (72).

2. A connecting rod small end bevel milling fixture according to claim 1, characterized in that: The end surface of the base (1) is provided with a sliding groove (11), the processing table (12) is provided with a rectangular groove (13), the rectangular groove (13) is located above the sliding groove (11), and the left side of the processing table (12) is provided with a mounting groove (14).

3. A connecting rod small end bevel milling fixture according to claim 1, characterized in that: A connecting rod body (4) is sleeved on the positioning seat one (2) and the positioning seat two (3); the small hole of the connecting rod body (4) is sleeved on the outside of the positioning seat one (2), and the large hole of the connecting rod body (4) is sleeved on the outside of the positioning seat two (3).

4. A connecting rod small end bevel milling fixture according to claim 1, characterized in that: The moving assembly (51) comprises a screw rod (511), the screw rod (511) is in a mounting groove (14) via a bearing, a sleeve (513) is threadedly connected to the outer wall of the screw rod (511), the top side of the sleeve (513) is connected to the mounting seat (52), and a knob (512) is fixedly connected to the left side of the screw rod (511).

5. The connecting rod small end bevel milling fixture according to claim 1, characterized in that: The connecting rod body clamping structure (6) comprises a hydraulic cylinder (61), the output end of the hydraulic cylinder (61) is rotatably connected to a pressure plate 1 (62), and the pressure plate 1 (62) is in contact with the middle part of the connecting rod body (4).

6. The connecting rod small end bevel milling fixture according to claim 1, characterized in that: A pressing plate 1 (721) is sleeved under the screw rod (72), and the pressing plate 1 (721) is in compression contact with the processing table (12). A nut 1 (722) is threadedly connected to the outer wall of the screw rod (72) and located above the pressing plate 1 (721). A nut 2 (723) is threadedly connected to the outer wall above the screw rod (72), and the nut 2 (723) is located on the bottom side of the pressing plate 2 (73). A pressing plate 2 (724) is sleeved on the outer wall above the screw rod (72), and the pressing plate 2 (724) is in compression contact with the top side of the pressing plate 2 (73). A nut 3 (725) is threadedly connected to the outer wall above the screw rod (72) and located above the pressing plate 2 (724).

7. The connecting rod small end bevel milling fixture according to claim 1, characterized in that: The second pressing plate (73) is provided with a through slot (731), and a pad (732) is provided at the bottom side of one end of the through slot (731) close to the second positioning seat (3).

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