Adjustable tool for machining rear cover of oil pump

Abstract

The utility model discloses an adjustable tool for oil pump rear cover machining, which belongs to the field of oil pump rear cover machining tools and comprises an oil pump rear cover body, a center hole is formed in the top surface of the oil pump rear cover body, and the oil pump rear cover body is fixedly connected to the top surface of a fixing table through an adjusting and fixing mechanism. The adjusting and fixing mechanism comprises a worm, a worm gear, an adjusting disc, an arc-shaped inner supporting plate, a screw rod and a pressing plate, the worm is movably connected to the bottom of the fixing table through first rotating rods at the two ends, and the tool is adjusted and used through the adjusting and fixing mechanism; according to the oil pump rear cover body machining tool, the purpose that oil pump rear cover bodies of different models and sizes can be rapidly adjusted, positioned and fixed can be achieved, workers do not need to replace the tool according to the sizes of the oil pump rear cover bodies, then the working efficiency during oil pump rear cover body machining is improved, and the applicability and flexibility of the tool are improved; and the machining requirement for the oil pump rear cover body is met.

Description

Technical Field

[0001] This utility model relates to the field of tooling for machining oil pump rear covers, and in particular to an adjustable tooling for machining oil pump rear covers. Background Technology

[0002] The oil pump rear cover, especially for gear oil pumps, is a crucial component of the oil pump. It typically consists of a rear cover housing with gear grooves inside to accommodate some components of the gear oil pump. These grooves communicate with the motor output shaft via bushings and shaft holes, facilitating the connection between the motor output shaft and the drive gear. The primary function of the gear oil pump rear cover is sealing, preventing engine lubricating oil from leaking around the pump and ensuring proper pump operation and engine lubrication. It also provides protection, preventing damage from external impacts and preventing impurities from entering the pump, thus ensuring stable operation.

[0003] In the prior art, there is a Chinese utility model patent with publication number "CN204584817U" and patent name "Oil Pump Rear Cover Machining Fixture". This patent describes a technical solution including "a flange for connecting with a lathe spindle, two positioning blocks and two positioning pins connected on the flange, the two positioning blocks and two positioning pins being coaxial with four connecting holes on the oil pump rear cover, the two positioning blocks and two positioning pins being diagonally arranged, the upper part of the two positioning pins being used to insert into the connecting holes of the oil pump rear cover, the middle part of the two positioning pins being provided with a positioning step surface, the positioning step surface being flush with the top surface of the positioning block, the two positioning blocks being provided with through holes coaxial with the connecting holes of the oil pump rear cover, and the flange at the bottom of the through holes being provided with threaded holes for screwing in locking screws".

[0004] Although this tooling can be used to fix the oil pump back cover during processing, its simple structure and the fact that different models of oil pumps have different back cover sizes mean that it can only fix oil pump back covers of the same size. When fixing oil pump back covers of different sizes, the operator needs to spend time changing the corresponding tooling, which is cumbersome and difficult to adjust. This not only reduces the efficiency of processing oil pump back covers, but also reduces the applicability and flexibility of the tooling.

[0005] Therefore, in order to solve the above-mentioned technical problems, this utility model proposes an adjustable tooling for machining the rear cover of an oil pump. Utility Model Content

[0006] The main purpose of this utility model is to provide an adjustable tooling for machining the rear cover of an oil pump, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] An adjustable tooling for machining an oil pump rear cover includes an oil pump rear cover body. The top surface of the oil pump rear cover body has a central hole. The oil pump rear cover body is fixedly connected to the top surface of a fixed platform via an adjusting and fixing mechanism. The adjusting and fixing mechanism includes a worm gear, a worm wheel, an adjusting disc, an arc-shaped inner support plate, a screw, and a clamping plate. The worm gear is movably connected to the bottom of the fixed platform via first rotating rods at both ends. The worm wheel is movably connected to the bottom surface of the inner plate of the fixed platform via a second rotating rod on the top surface and meshes with the worm gear. The adjusting disc is fixedly connected to the top end of the second rotating rod. Two arc-shaped inner support plates pass through the top surface of the fixed platform via movable rods at their bottom ends and are movably connected to the adjusting disc. The screw is movably connected to the bottom surface of a fixing block on the inner side wall of the arc-shaped inner support plate via a third rotating rod at the top end. The clamping plate is movably connected to the screw via a connecting plate on the inner side wall, and the connecting plate passes through the arc-shaped inner support plate.

[0009] Furthermore, the fixed platform has an internal cavity, and the top surface of the fixed platform has a set of horizontal grooves that are symmetrical and communicate with the internal cavity. The front and rear walls of the fixed platform also have first rotating holes that communicate with the internal cavity.

[0010] Furthermore, the inner plate is fixedly installed in the center of the inner cavity, and a second rotating hole is provided on the top surface of the inner plate.

[0011] Furthermore, a first rotating rod is fixedly installed at both ends of the worm, and the first rotating rod is movably installed in the first rotating hole. A first adjusting knob is also fixedly installed on the outer end wall of the first rotating rod at the rear end. A second rotating rod is fixedly installed on the top surface of the worm wheel, and the second rotating rod is movably installed in the second rotating hole. The worm wheel and the worm are meshed together. The adjusting plate is fixedly installed on the top of the second rotating rod, and a set of symmetrical arc-shaped grooves are opened on the top surface of the adjusting plate.

[0012] Furthermore, a movable rod is fixedly installed at the bottom end of the arc-shaped inner support plate, and the movable rod passes through the transverse groove and the arc-shaped groove in sequence, with a limit plate fixedly installed at the bottom end of the movable rod.

[0013] Furthermore, a vertical opening is provided on the side wall of the arc-shaped inner support plate, and a fixing block is fixedly installed on the top of the inner side wall of the arc-shaped inner support plate. A third rotating hole is provided on the top surface of the fixing block, and a third rotating rod is fixedly installed on the top of the screw and movably installed in the third rotating hole. A second adjusting knob is also fixedly installed on the top of the third rotating rod. A connecting plate is fixedly installed on the inner side wall of the clamping plate, and the connecting plate passes through the vertical opening. A threaded hole for threaded connection with the screw is also provided on the top surface of the connecting plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In this invention, the adjustment and fixing mechanism, during the processing of the oil pump rear cover body, places the oil pump rear cover body on the top surface of the fixing platform, with the symmetrical arc-shaped inner support plate on the top surface of the fixing platform passing through the central hole on the top surface of the oil pump rear cover body. Rotating the first adjustment knob drives the worm gear to rotate via the first rotating rod, causing the worm gear to rotate under the action of rotational engagement. The worm gear then drives the adjustment disc to rotate via the second rotating rod. During the rotation of the adjustment disc, the movable rod is pushed outward in the transverse groove through the arc-shaped groove until the movable rod drives the arc-shaped inner support plate, causing the outer wall of the arc-shaped inner support plate to fit tightly against the inner wall of the central hole. Thus, the oil pump rear cover body can be positioned and fixed on the fixing platform by the inner support tensioning method according to the size of the oil pump rear cover body. The top surface of the oil pump rear cover is then rotated, and the second adjustment knob is turned to drive the screw to rotate through the third rotating rod. This causes the clamping plate to move downwards along the screw through the screw hole on the top surface of the connecting plate. This further clamps and fixes the oil pump rear cover to the top surface of the fixed platform according to its height. This prevents displacement of the oil pump rear cover during processing. The tooling can be adjusted and used by adjusting the fixing mechanism, achieving rapid adjustment, positioning, and fixing of oil pump rear covers of different sizes. This eliminates the need for operators to change the tooling according to the size of the oil pump rear cover, thus improving not only the efficiency of processing the oil pump rear cover but also the applicability and flexibility of the tooling, meeting the processing requirements of the oil pump rear cover. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the fixing platform of this utility model;

[0018] Figure 3 This is a structural breakdown diagram of the adjustment and fixing mechanism of this utility model;

[0019] Figure 4 This is a structural breakdown diagram of the arc-shaped inner support plate of this utility model.

[0020] In the diagram: 1. Oil pump rear cover body; 2. Center hole; 3. Fixing platform; 4. Adjustment and fixing mechanism; 5. Inner cavity; 6. Horizontal groove; 7. First rotating hole; 8. Inner plate; 9. Second rotating hole; 10. Worm gear; 11. First rotating rod; 12. First adjusting knob; 13. Worm wheel; 14. Second rotating rod; 15. Adjusting disc; 16. Arc-shaped groove; 17. Arc-shaped inner support plate; 18. Movable rod; 19. Limiting disc; 20. Vertical opening; 21. Fixing block; 22. Third rotating hole; 23. Screw; 24. Third rotating rod; 25. Second adjusting knob; 26. Pressure plate; 27. Connecting plate; 28. Screw hole. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figure 1 - Figure 4 As shown, an adjustable tooling for machining an oil pump rear cover includes an oil pump rear cover body 1. A central hole 2 is formed on the top surface of the oil pump rear cover body 1. The oil pump rear cover body 1 is fixedly connected to the top surface of a fixed platform 3 via an adjusting and fixing mechanism 4. The adjusting and fixing mechanism 4 includes a worm gear 10, a worm wheel 13, an adjusting disc 15, an arc-shaped inner support plate 17, a screw 23, and a clamping plate 26. The worm gear 10 is movably connected to the bottom of the fixed platform 3 via first rotating rods 11 at both ends, and the worm wheel 13 is movably connected to the bottom surface via a second rotating rod 14 on the top surface. The bottom surface of the inner plate 8 in the fixed platform 3 is engaged with the worm gear 10. The adjusting plate 15 is fixedly connected to the top of the second rotating rod 14. The two arc-shaped inner support plates 17 pass through the top surface of the fixed platform 3 and are movably connected to the adjusting plate 15 through the movable rod 18 at the bottom end. The screw 23 is movably connected to the bottom surface of the fixing block 21 on the inner side wall of the arc-shaped inner support plate 17 through the third rotating rod 24 at the top end. The pressing plate 26 is movably connected to the screw 23 through the connecting plate 27 on the inner side wall. The connecting plate 27 passes through the arc-shaped inner support plate 17.

[0023] like Figure 2 As shown, the fixed platform 3 has an inner cavity 5 inside, and the top surface of the fixed platform 3 has a set of horizontal grooves 6 that are symmetrical and communicate with the inner cavity 5. The horizontal grooves 6 can guide the movement of the movable rod 18. The front and rear walls of the fixed platform 3 are also provided with first rotating holes 7 that communicate with the inner cavity 5. The first rotating holes 7 are used to cooperate with the first rotating rod 11 to realize the rotation operation.

[0024] like Figure 2 As shown, the inner plate 8 is fixedly installed in the center of the inner cavity 5, and the top surface of the inner plate 8 is provided with a second rotating hole 9, which is used to cooperate with the second rotating rod 14 to realize the rotation operation.

[0025] like Figure 3As shown, a first rotating rod 11 is fixedly installed at both the front and rear ends of the worm 10, and the first rotating rod 11 is movably installed in the first rotating hole 7. A first adjusting knob 12 is also fixedly installed on the outer end wall of the rear end of the first rotating rod 11. A second rotating rod 14 is fixedly installed on the top surface of the worm wheel 13, and the second rotating rod 14 is movably installed in the second rotating hole 9. The worm wheel 13 and the worm 10 are meshed together. An adjusting plate 15 is fixedly installed at the top of the second rotating rod 14, and a set of symmetrical arc grooves 16 are opened on the top surface of the adjusting plate 15. Rotating the first adjusting knob 12 drives the worm 10 to rotate through the first rotating rod 11, so that the worm 10 drives the worm wheel 13 to rotate under the rotation meshing action, so that the worm wheel 13 drives the adjusting plate 15 to rotate through the second rotating rod 14 on the top surface, so that the adjusting plate 15 pushes the movable rod 18 to move in the transverse groove 6 through the arc groove 16 during the rotation process.

[0026] like Figure 3 As shown, a movable rod 18 is fixedly installed at the bottom end of the arc-shaped inner support plate 17, and the movable rod 18 passes through the transverse groove 6 and the arc-shaped groove 16 in sequence. A limiting plate 19 is fixedly installed at the bottom end of the movable rod 18. The limiting plate 19 can prevent the movable rod 18 from moving out of the arc-shaped groove 16. When the movable rod 18 moves through the arc-shaped groove 16 in the transverse groove 6, it will drive the arc-shaped inner support plate 17 to move outward. By adjusting the distance between the arc-shaped inner support plates 17 until the arc-shaped outer wall of the arc-shaped inner support plate 17 is close to the inner wall of the center hole 2, the oil pump rear cover body 1 of different models and sizes can be positioned and fixed on the top surface of the fixed platform 3 by the inner support tensioning method.

[0027] like Figure 3 and Figure 4 As shown, a vertical opening 20 is provided on the side wall of the arc-shaped inner support plate 17, and a fixing block 21 is fixedly installed on the top of the inner side wall of the arc-shaped inner support plate 17. A third rotating hole 22 is provided on the top surface of the fixing block 21, and a third rotating rod 24 is fixedly installed on the top of the screw 23 and movably installed in the third rotating hole 22. A second adjusting knob 25 is also fixedly installed on the top of the third rotating rod 24. A connecting plate 27 is fixedly installed on the inner side wall of the pressing plate 26, and the connecting plate 27 passes through the vertical opening 20. A screw hole 28 is also provided on the top surface of the connecting plate 27 and threadedly connected to the screw 23. Rotating the second adjusting knob 25 drives the screw 23 to rotate through the third rotating rod 24, so that the pressing plate 26 moves downward along the screw 23 through the screw hole 28 on the top surface of the connecting plate 27 and presses against the top surface of the oil pump rear cover body 1. The oil pump rear cover body 1 can be further pressed and fixed to the top surface of the fixing platform 3 according to its height.

[0028] The specific operating principle of the fixed platform 3 and the adjusting and fixing mechanism 4 during the machining of the oil pump rear cover body 1 is as follows:

[0029] When machining the oil pump rear cover body 1, the oil pump rear cover body 1 is placed on the top surface of the fixed platform 3, and the symmetrical arc-shaped inner support plates 17 on the top surface of the fixed platform 3 pass through the central hole 2 opened on the top surface of the oil pump rear cover body 1. Then, the first adjustment knob 12 located on one side of the fixed platform 3 is rotated. The first adjustment knob 12 will drive the first rotating rod 11 to rotate in the first rotating hole 7. The first rotating rod 11 will drive the worm gear 10 to rotate, so that the worm gear 10 will drive the worm wheel 13 to rotate under the action of rotational meshing. The second rotating rod 14 installed on the top surface of the worm wheel 13 will rotate in the second rotating hole 9 opened on the top surface of the inner plate 8 installed in the inner cavity 5 of the fixed platform 3. The moving rod 14 will drive the adjusting plate 15 to rotate. During the rotation of the adjusting plate 15, because the movable rod 18 at the bottom of the arc-shaped inner support plate 17 passes through the transverse groove 6 and the arc-shaped groove 16 opened on the top surface of the adjusting plate 15, and is restricted by the limiting plate 19 at the bottom to prevent the adjusting plate 15 from moving out of the fixed platform 3, the adjusting plate 15 will push the movable rod 18 to move outward in the transverse groove 6 through the arc-shaped groove 16. Driven by the movable rod 18, the left and right symmetrical arc-shaped inner support plates 17 will make opposite movements inside the central hole 2 until the arc-shaped outer wall of the arc-shaped inner support plate 17 is in close contact with the inner wall of the central hole 2, thus achieving the first adjustment. Since knob 12 cannot be turned, the distance between the arc-shaped inner support plates 17 can be adjusted to quickly position and fix the oil pump rear cover body 1 to the top surface of the fixing platform 3 by means of internal support tensioning, according to different models and sizes of oil pump rear cover bodies 1. After positioning and fixing, turning the second adjustment knob 25 drives the third rotating rod 24 to rotate in the third rotating hole 22 opened on the top surface of the fixing block 21. After the third rotating rod 24 drives the screw 23 to rotate, the connecting plate 27 moves downward through the screw hole 28 opened on the top surface and along the vertical opening 20 opened on the side wall of the arc-shaped inner support plate 17 along the screw 23 until it drives the pressing plate 26 on the outer wall to move synchronously and press it against the oil pump rear cover body. The top surface of 1 prevents the second adjustment knob 25 from rotating. Thus, the oil pump rear cover body 1 can be further pressed and fixed to the top surface of the fixing platform 3 according to its height. This prevents displacement during the processing of the oil pump rear cover body 1. By adjusting the fixing mechanism 4, the tooling can be used to quickly adjust, position and fix oil pump rear cover bodies 13 of different sizes. There is no need for the operator to change the tooling according to the size of the oil pump rear cover body 1. This not only improves the work efficiency during the processing of the oil pump rear cover body 1, but also improves the applicability and flexibility of the tooling and meets the processing requirements of the oil pump rear cover body 1.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable tooling for machining an oil pump rear cover, comprising an oil pump rear cover body (1), wherein a central hole (2) is formed on the top surface of the oil pump rear cover body (1), characterized in that: The oil pump rear cover body (1) is fixedly connected to the top surface of the fixed platform (3) by an adjusting and fixing mechanism (4). The adjusting and fixing mechanism (4) includes a worm (10), a worm wheel (13), an adjusting plate (15), an arc-shaped inner support plate (17), a screw (23), and a clamping plate (26). The worm (10) is movably connected to the bottom of the fixed platform (3) by the first rotating rods (11) at both ends, and the worm wheel (13) is movably connected to the bottom surface of the inner plate (8) of the fixed platform (3) by the second rotating rod (14) on the top surface and meshes with the worm (10). The adjusting plate (15) is fixedly connected to the top of the second rotating rod (14), and the two arc-shaped inner support plates (17) pass through the top surface of the fixed platform (3) and are movably connected to the adjusting plate (15) through the movable rod (18) at the bottom end. The screw (23) is movably connected to the bottom surface of the fixing block (21) on the inner side wall of the arc-shaped inner support plate (17) through the third rotating rod (24) at the top end. The pressing plate (26) is movably connected to the screw (23) through the connecting plate (27) on the inner side wall. The connecting plate (27) passes through the arc-shaped inner support plate (17).

2. The adjustable tooling for machining an oil pump rear cover according to claim 1, characterized in that: The fixed platform (3) has an inner cavity (5) inside, and a set of horizontal grooves (6) symmetrically arranged on the top surface of the fixed platform (3) and communicating with the inner cavity (5). The front and rear walls of the fixed platform (3) are also provided with first rotating holes (7) communicating with the inner cavity (5).

3. The adjustable tooling for machining an oil pump rear cover according to claim 2, characterized in that: The inner plate (8) is fixedly installed in the center of the inner cavity (5), and a second rotating hole (9) is provided on the top surface of the inner plate (8).

4. The adjustable tooling for machining an oil pump rear cover according to claim 3, characterized in that: The worm (10) has a first rotating rod (11) fixedly installed at its front and rear ends respectively, and the first rotating rod (11) is movably installed in the first rotating hole (7). The first adjusting knob (12) is also fixedly installed on the outer end wall of the first rotating rod (11) at the rear end. The second rotating rod (14) is fixedly installed on the top surface of the worm wheel (13), and the second rotating rod (14) is movably installed in the second rotating hole (9). The worm wheel (13) and the worm (10) mesh together. The adjusting plate (15) is fixedly installed on the top of the second rotating rod (14), and a set of symmetrical arc grooves (16) are opened on the top surface of the adjusting plate (15).

5. The adjustable tooling for machining an oil pump rear cover according to claim 4, characterized in that: A movable rod (18) is fixedly installed at the bottom end of the arc-shaped inner support plate (17), and the movable rod (18) passes through the transverse groove (6) and the arc-shaped groove (16) in sequence. A limit plate (19) is fixedly installed at the bottom end of the movable rod (18).

6. The adjustable tooling for machining an oil pump rear cover according to claim 5, characterized in that: A vertical opening (20) is provided on the side wall of the arc-shaped inner support plate (17), and a fixing block (21) is fixedly installed on the top of the inner side wall of the arc-shaped inner support plate (17). A third rotating hole (22) is provided on the top surface of the fixing block (21), and a third rotating rod (24) is fixedly installed on the top of the screw (23) and movably installed in the third rotating hole (22). A second adjusting knob (25) is also fixedly installed on the top of the third rotating rod (24). A connecting plate (27) is fixedly installed on the inner side wall of the clamping plate (26), and the connecting plate (27) passes through the vertical opening (20). A screw hole (28) is also provided on the top surface of the connecting plate (27) for threaded connection with the screw (23).

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