Crankshaft inclined hole drilling clamping tool

Abstract

The utility model discloses a crankshaft inclined hole drilling and clamping tool which solves the problem that in the prior art, the clamping process of a crankshaft is tedious. The device comprises a sliding seat, a plurality of rotating mechanisms rotationally arranged on the sliding seat and connected with external hydraulic equipment, driving mechanisms arranged at the bottoms of the rotating mechanisms and used for driving the rotating mechanisms to operate, and crankshaft limiting mechanisms arranged on the rotating mechanisms and used for containing crankshafts. And the pressing mechanism is arranged on the crankshaft limiting mechanism and is used for pressing the crankshaft. The driving mechanism and the rotating mechanism are matched to rotate the crankshaft limiting mechanism, so that the drilling angle of the crankshaft is adjusted, in the using process, the crankshaft is placed in the crankshaft limiting mechanism, and the crankshaft is pressed through the pressing mechanism to be fixed in the crankshaft limiting mechanism, so that the crankshaft is conveniently clamped, and the drilling angle of the crankshaft is adjusted. And the crankshaft is prevented from moving in the drilling process.

Description

Technical Field

[0001] The utility model belongs to the technical field of crankshaft processing equipment, and particularly relates to a clamping tool for drilling inclined holes of a crankshaft. Background Art

[0002] The core function of a compressor crankshaft is to serve as a power transmission component, converting rotary motion into reciprocating motion to drive a piston or a connecting rod to perform reciprocating motion. In an engine, the crankshaft bears the force transmitted by the connecting rod and converts it into torque output to drive other accessories on the engine. In an air-conditioning compressor, the crankshaft provides solid support for the smooth operation of the air-conditioning piston compressor by converting rotary motion into reciprocating motion. In a reciprocating piston compressor, the crankshaft changes the circular motion of the prime mover into the curvilinear motion of the connecting rod to drive the piston to perform reciprocating motion. Drilling inclined holes on the compressor crankshaft can effectively reduce the mass of the crankshaft and the centrifugal force generated during the movement of the crankshaft, and at the same time play a lubricating role, thereby improving the service life of the compressor.

[0003] When machining the inclined holes of the crankshaft, generally, an operator needs to place the crankshaft in a fixture and measure the position of the inclined holes through a dial indicator or other equipment to determine the position of the inclined holes. After determining the position of the inclined holes, the bolts are tightened to fix the crankshaft in the fixture. When machining the crankshaft by the above method, the clamping process is relatively cumbersome, time-consuming and laborious, which will affect the drilling efficiency. Summary of the Utility Model

[0004] The utility model provides a clamping tool for drilling inclined holes of a crankshaft to solve at least some of the above technical problems.

[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0006] A clamping tool for drilling inclined holes of a crankshaft includes a sliding seat, a plurality of rotating mechanisms rotatably arranged on the sliding seat and connected to an external hydraulic device, a driving mechanism arranged at the bottom of the rotating mechanism for driving the rotating mechanism to operate, a crankshaft limiting mechanism arranged on the rotating mechanism for placing the crankshaft, and a pressing mechanism arranged on the crankshaft limiting mechanism and connected to the rotating mechanism for pressing the crankshaft.

[0007] Further, the crankshaft limiting mechanism includes a fixed seat arranged on the rotating mechanism, a crankshaft mounting block arranged on the fixed seat for placing the crankshaft, and a limiting plate arranged in the crankshaft mounting block and connected to the fixed seat for fixing the crankshaft balance block. The pressing mechanism is installed on the fixed seat.

[0008] Further, the crankshaft mounting block includes a base arranged on the fixed seat and a limiting block arranged on the base. The base and the limiting block are of an integral structure. The crankshaft is located in the limiting block, and the limiting plate is installed in the base.

[0009] Further, a through relief groove is formed in the base, and mounting grooves adapted to the limiting plates are provided on both side walls of the relief groove, and the limiting plates are mounted in the mounting grooves; a V-shaped groove is provided on the limiting block.

[0010] Further, a journal relief groove adapted to the crankshaft balance weight is formed in the limiting plate, and the crankshaft balance weight is located in the journal relief groove and abuts against the end face of the limiting plate.

[0011] Further, the rotating mechanism includes an annular mounting seat provided on the sliding seat, an annular sealing seat hermetically connected to the bottom of the annular mounting seat and connected to an external hydraulic device, and a core shaft rotatably and hermetically arranged in the annular mounting seat and the annular sealing seat, with one end passing through the annular mounting seat and connected to the crankshaft limiting mechanism and the other end passing through the annular sealing seat and connected to the driving mechanism; a liquid inlet and outlet mechanism connected to the pressing mechanism is provided on the core shaft.

[0012] Further, a liquid inlet and an outlet are provided on the annular sealing seat and connected to an external hydraulic device. The liquid inlet and outlet mechanism includes a first annular groove formed in the core shaft and connected to the liquid inlet, a liquid inlet pipe formed in the core shaft with one end communicating with the first annular groove and the other end connected to the pressing mechanism, a second annular groove formed in the core shaft and connected to the outlet, and a liquid outlet pipe provided in the core shaft with one end communicating with the second annular groove and the other end connected to the outlet.

[0013] Further, the driving mechanism includes a motor mounting seat provided at the bottom of the annular sealing seat, a servo motor provided on the motor mounting seat, and a coupling connected between the output end of the servo motor and the core shaft and located in the motor mounting seat.

[0014] Further, the pressing mechanism includes a hydraulic cylinder provided on the fixed seat and connected to the rotating mechanism, and a pressing plate provided at the output end of the hydraulic cylinder for pressing the crankshaft.

[0015] Further, a mounting hole adapted to the rotating mechanism is provided on the sliding seat, a protective cover is provided on the sliding seat outside the mounting hole, and the rotating mechanism is mounted in the mounting hole and one end rotates outside the protective cover.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model has a simple structure, is scientifically and reasonably designed, and is convenient to use. The utility model can facilitate the rotation of the crankshaft limiting mechanism through the cooperation of the driving mechanism and the rotating mechanism, so as to facilitate drilling of the crankshaft. During use, the crankshaft is placed in the crankshaft limiting mechanism, and the crankshaft is pressed by the pressing mechanism to be fixed in the crankshaft limiting mechanism, so as to facilitate clamping of the crankshaft and avoid tilting of the crankshaft during drilling. Description of the Drawings

[0018] Figure 1 This is a schematic structural view of the present utility model.

[0019] Figure 2 This is an exploded view of the present utility model.

[0020] Figure 3 This is a cross-sectional view of the rotating mechanism of the present utility model.

[0021] Figure 4 For Figure 3 The cross-sectional view at position A in

[0022] Figure 5 This is a schematic view of the crankshaft mounting block of the present utility model.

[0023] Figure 6 This is a schematic view of the limit block of the present utility model.

[0024] Figure 7 This is a schematic view of the mandrel of the present utility model.

[0025] Figure 8 This is a cross-sectional view of the mandrel of the present utility model.

[0026] Figure 9 This is the front view of the mandrel of the present utility model.

[0027] Figure 10 This is a schematic view of the annular mounting seat of the present utility model.

[0028] Figure 11 This is a schematic view of the annular sealing seat of the present utility model.

[0029] Figure 12 This is a schematic view of the pressing mechanism of the present utility model.

[0030] Figure 13 This is the installation schematic view of the present utility model.

[0031] Figure 14 This is a schematic view of the crankshaft of the present utility model.

[0032] Among them, the names corresponding to the reference numerals are:

[0033] 1. Sliding seat; 2. Crankshaft; 3. Fixed seat; 4. Crankshaft mounting block; 5. Crankshaft balance weight; 6. Limiting plate; 7. Base; 8. Limiting block; 9. Relief groove; 10. Mounting groove; 11. Journal relief groove; 12. Ring-shaped mounting seat; 13. Ring-shaped sealing seat; 14. Mandrel; 15. Liquid inlet; 16. Liquid outlet; 17. First annular groove; 18. Liquid inlet pipe; 19. Second annular groove; 20. Liquid outlet pipe; 21. Motor mounting seat; 22. Servo motor; 23. Coupling; 24. Hydraulic cylinder; 25. Pressing plate; 26. Mounting hole; 27. Protective cover; 28. V-shaped groove; 29. Sealing ring; 30. Sealing groove. Detailed implementation manner

[0034] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following further details the present utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0035] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; of course, it can also be a mechanical connection or an electrical connection; in addition, it can also be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] Embodiment 1.

[0038] As Figure 1-13As shown in the figure, a clamping tool for drilling inclined holes of a crankshaft provided by the present utility model includes a sliding seat 1, a plurality of rotating mechanisms rotatably arranged on the sliding seat 1 and connected to an external hydraulic device, a driving mechanism arranged at the bottom of the rotating mechanism for driving the operation of the rotating mechanism, a crankshaft limiting mechanism arranged on the rotating mechanism for placing the crankshaft 2, and a pressing mechanism arranged on the crankshaft limiting mechanism and connected to the rotating mechanism for pressing the crankshaft 2.

[0039] In the present utility model, the rotating mechanism is rotatably installed on the sliding seat 1, and a crankshaft limiting mechanism is installed on the rotating mechanism. A pressing mechanism is installed on the crankshaft limiting mechanism. Through the cooperation of the crankshaft limiting mechanism and the pressing mechanism, it is convenient to fix the crankshaft 2. A driving mechanism for driving the rotation of the rotating mechanism is arranged at the bottom of the rotating mechanism. The driving mechanism can drive the rotation of the rotating mechanism, thereby driving the crankshaft limiting mechanism to rotate, so as to facilitate the adjustment of the drilling angle of the crankshaft 2. During the use of the present utility model, the crankshaft 2 is placed on the crankshaft limiting mechanism, and the crankshaft 2 is pressed by the pressing mechanism to fix it in the crankshaft limiting mechanism, so as to facilitate the clamping of the crankshaft 2 and avoid the inclination of the crankshaft 2 during the drilling process.

[0040] Preferably, there are two rotating mechanisms in the present utility model. Each rotating mechanism corresponds to a driving mechanism, a crankshaft limiting mechanism, and a pressing mechanism, so as to be able to clamp multiple crankshafts 2 at the same time and facilitate the improvement of the drilling efficiency of the crankshaft 2.

[0041] Embodiment 2.

[0042] As Figure 1-13 As shown in the figure, a clamping tool for drilling inclined holes of a crankshaft provided by the present utility model includes a sliding seat 1, a plurality of rotating mechanisms rotatably arranged on the sliding seat 1 and connected to an external hydraulic device, a driving mechanism arranged at the bottom of the rotating mechanism for driving the operation of the rotating mechanism, a crankshaft limiting mechanism arranged on the rotating mechanism for placing the crankshaft 2, and a pressing mechanism arranged on the crankshaft limiting mechanism and connected to the rotating mechanism for pressing the crankshaft 2.

[0043] The crankshaft limiting mechanism includes a fixed seat 3 arranged on the rotating mechanism, a crankshaft mounting block 4 arranged on the fixed seat 3 for placing the crankshaft 2, and a limiting plate 6 arranged in the crankshaft mounting block 4 and connected to the fixed seat 3 for fixing the crankshaft balance block 5. The pressing mechanism is installed on the fixed seat 3.

[0044] On the basis of Embodiment 1, Embodiment 2 of the present utility model gives a more preferable structure of the crankshaft limiting mechanism. Specifically, the crankshaft limiting mechanism includes a fixed seat 3 arranged on the rotating mechanism, a crankshaft mounting block 4 arranged on the fixed seat 3 for placing the crankshaft 2, and a limiting plate 6 arranged in the crankshaft mounting block 4 and connected to the fixed seat 3 for fixing the crankshaft balance block 5. The pressing mechanism is installed on the fixed seat 3.

[0045] The fixing seat 3 of the present utility model is installed on the rotating mechanism, the crankshaft mounting block 4 is installed on the fixing seat 3, and a limiting plate 6 is arranged inside the crankshaft mounting block 4. The limiting plate 6 can prevent the crankshaft 2 from displacing during the drilling process. The pressing mechanism is installed on the fixing seat 3. During use, the crankshaft 2 is placed inside the crankshaft mounting block 4, and at the same time, the crankshaft balance weight 5 abuts against the end of the limiting plate 6, and is fixed by the pressing mechanism, so that it is convenient to clamp the crankshaft 2, and the crankshaft 2 can be prevented from tilting during the drilling process.

[0046] Embodiment 3.

[0047] As Figure 1-13 shown, a crankshaft inclined hole drilling and clamping tooling provided by the present utility model includes a sliding seat 1, a plurality of rotating mechanisms rotatably arranged on the sliding seat 1 and connected to an external hydraulic device, a driving mechanism arranged at the bottom of the rotating mechanism for driving the operation of the rotating mechanism, a crankshaft limiting mechanism arranged on the rotating mechanism for placing the crankshaft 2, and a pressing mechanism arranged on the crankshaft limiting mechanism and connected to the rotating mechanism for pressing the crankshaft 2.

[0048] The crankshaft limiting mechanism includes a fixing seat 3 arranged on the rotating mechanism, a crankshaft mounting block 4 arranged on the fixing seat 3 for placing the crankshaft 2, and a limiting plate 6 arranged inside the crankshaft mounting block 4 and connected to the fixing seat 3 for fixing the crankshaft balance weight 5. The pressing mechanism is installed on the fixing seat 3.

[0049] The crankshaft mounting block 4 includes a base 7 arranged on the fixing seat 3 and a limiting block 8 arranged on the base 7. The base 7 and the limiting block 8 are of an integral structure. The crankshaft 2 is located inside the limiting block 8, and the limiting plate 6 is installed inside the base 7.

[0050] On the basis of Embodiment 2, Embodiment 3 gives a more preferable structure of the crankshaft mounting block 4. Specifically, the crankshaft mounting block 4 includes a base 7 arranged on the fixing seat 3 and a limiting block 8 arranged on the base 7. The base 7 and the limiting block 8 are of an integral structure. The crankshaft 2 is located inside the limiting block 8, and the limiting plate 6 is installed inside the base 7.

[0051] The base 7 of the present utility model is fixed on the fixing seat 3 by bolts, the limiting block 8 is installed on the base 7, the limiting block 8 can facilitate the limiting of the crankshaft 2, and when the crankshaft 2 is located inside the limiting block 8, the bottom of the crankshaft balance weight 5 contacts the top of the limiting block 8, and at the same time, the crankshaft balance weight 5 abuts against the end of the limiting plate 6, so as to facilitate the limiting of the crankshaft 2.

[0052] Embodiment 4.

[0053] As Figure 1-13As shown, the utility model provides a crankshaft inclined hole drilling clamping tool, including a sliding seat 1, a plurality of rotating mechanisms rotatably arranged on the sliding seat 1 and connected to external hydraulic equipment, a driving mechanism arranged at the bottom of the rotating mechanism for driving the rotating mechanism to operate, a crankshaft limiting mechanism arranged on the rotating mechanism for placing the crankshaft 2, and a clamping mechanism arranged on the crankshaft limiting mechanism and connected to the rotating mechanism for clamping the crankshaft 2.

[0054] The crankshaft limiting mechanism includes a fixed seat 3 arranged on the rotating mechanism, a crankshaft mounting block 4 arranged on the fixed seat 3 for placing the crankshaft 2, and a limiting plate 6 arranged in the crankshaft mounting block 4 and connected to the fixed seat 3 for fixing the crankshaft balancing block 5. The clamping mechanism is installed on the fixed seat 3.

[0055] The crankshaft mounting block 4 includes a base 7 arranged on the fixing seat 3 and a limit block 8 arranged on the base 7 . The base 7 and the limit block 8 are an integrated structure. The crankshaft 2 is located in the limit block 8 , and the limit plate 6 is installed in the base 7 .

[0056] A through-going clearance groove (9) is provided on the base (7), and mounting grooves (10) matching with the limiting plate (6) are provided on both side walls of the clearance groove (9), and the limiting plate (6) is installed in the mounting groove (10); a V-shaped groove (28) is provided on the limiting block (8), and the crankshaft (2) is pressed in the V-shaped groove (28) by a pressing mechanism.

[0057] This embodiment 4 provides a more preferred structure of the base 7 on the basis of embodiment 3, specifically: a through-going clearance groove (9) is provided on the base (7), and mounting grooves (10) adapted to the limit plate (6) are provided on the two side walls of the clearance groove (9), and the limit plate (6) is installed in the mounting groove (10); a V-shaped groove (28) is provided on the limit block (8), and the crankshaft (2) is clamped in the V-shaped groove (28) by a clamping mechanism.

[0058] The utility model base 7 is provided with a through-going giving way groove 9, and the two side walls of the giving way groove 9 are provided with installation grooves 10 adapted to the limiting plate 6. The giving way groove 9 can facilitate giving way to the limiting plate 6, and the limiting plate 6 is installed in the giving way groove 9 and fixed to the fixing seat 3 by bolts. Specifically, the limiting plate 6 is provided with a fixing block, and the fixing block is provided with a first threaded hole. The fixing block and the limiting plate 6 are an integrated structure, and the fixing seat 3 is provided with a second threaded hole, and the bolt is threadedly connected to the first threaded hole and the second threaded hole.

[0059] The utility model provides a V-shaped groove 28 on the limit block 8, and the V-shaped groove 28 can facilitate the installation of the crankshaft 2. Specifically, when the crankshaft 2 is located in the V-shaped groove 28, the bottom of the crankshaft balance block 5 contacts the top of the limit block 8, and the end of the crankshaft balance block 5 contacts the end of the limit plate 6, thereby facilitating the limiting of the crankshaft 2.

[0060] Example 5

[0061] As Figure 1-13 As shown in the figure, a clamping tool for drilling inclined holes of a crankshaft provided by the present utility model includes a sliding seat 1, a plurality of rotating mechanisms rotatably arranged on the sliding seat 1 and connected to an external hydraulic device, a driving mechanism arranged at the bottom of the rotating mechanism for driving the operation of the rotating mechanism, a crankshaft limiting mechanism arranged on the rotating mechanism for placing the crankshaft 2, and a pressing mechanism arranged on the crankshaft limiting mechanism and connected to the rotating mechanism for pressing the crankshaft 2.

[0062] The crankshaft limiting mechanism includes a fixed seat 3 arranged on the rotating mechanism, a crankshaft mounting block 4 arranged on the fixed seat 3 for placing the crankshaft 2, and a limiting plate 6 arranged in the crankshaft mounting block 4 and connected to the fixed seat 3 for fixing the crankshaft balance block 5. The pressing mechanism is installed on the fixed seat 3.

[0063] The limiting plate 6 is provided with a journal relief groove 11 adapted to the crankshaft balance block 5. The crankshaft balance block 5 is located in the journal relief groove 11 and the crankshaft balance block 5 abuts against the end face of the limiting plate 6.

[0064] In this Example 5, a more preferable structure of the limiting plate 6 is given on the basis of Example 2. Specifically, the limiting plate 6 is provided with a journal relief groove 11 adapted to the crankshaft balance block 5. The crankshaft balance block 5 is located in the journal relief groove 11 and the crankshaft balance block 5 abuts against the end face of the limiting plate 6.

[0065] The limiting plate 6 of the present utility model is provided with a journal relief groove 11 adapted to the crankshaft balance block 5. The crankshaft 2 is installed in the accommodating groove and the crankshaft balance block 5 is located in the journal relief groove 11. At the same time, the end parts on both sides of the crankshaft balance block 5 abut against the end parts of the limiting plate 6.

[0066] Example 6

[0067] As Figure 1-13 As shown in the figure, a clamping tool for drilling inclined holes of a crankshaft provided by the present utility model includes a sliding seat 1, a plurality of rotating mechanisms rotatably arranged on the sliding seat 1 and connected to an external hydraulic device, a driving mechanism arranged at the bottom of the rotating mechanism for driving the operation of the rotating mechanism, a crankshaft limiting mechanism arranged on the rotating mechanism for placing the crankshaft 2, and a pressing mechanism arranged on the crankshaft limiting mechanism and connected to the rotating mechanism for pressing the crankshaft 2.

[0068] The rotating mechanism includes an annular mounting seat 12 provided on the sliding seat 1, an annular sealing seat 13 hermetically connected to the bottom of the annular mounting seat 12 and connected to an external hydraulic device, and a core shaft 14 rotatably and hermetically arranged within the annular mounting seat 12 and the annular sealing seat 13, with one end connected to the annular mounting seat 12 and the other end connected to the driving mechanism; a liquid inlet and outlet mechanism connected to the pressing mechanism is provided on the core shaft 14.

[0069] Based on Embodiment 1, Embodiment 6 gives a more preferable structure of the rotating mechanism. Specifically, the rotating mechanism includes an annular mounting seat 12 provided on the sliding seat 1, an annular sealing seat 13 hermetically connected to the bottom of the annular mounting seat 12 and connected to an external hydraulic device, and a core shaft 14 rotatably and hermetically arranged within the annular mounting seat 12 and the annular sealing seat 13, with one end passing through the annular mounting seat 12 and connected to the fixed seat 3 and the other end passing through the annular sealing seat 13 and connected to the driving mechanism; a liquid inlet and outlet mechanism connected to the pressing mechanism is provided on the core shaft 14.

[0070] In the present utility model, the annular mounting seat 12 is fixedly installed on the sliding seat 1, the annular sealing seat 13 is installed at the bottom of the annular mounting seat 12, the core shaft 14 is rotatably installed within the annular mounting seat 12 and the annular sealing seat 13, and one end of the core shaft 14 passes through the annular mounting seat 12 and is connected to the fixed seat 3 and the other end passes through the annular sealing seat 13 and is connected to the driving mechanism. A liquid inlet and outlet mechanism connected to an external hydraulic device is provided on the core shaft 14. Specifically, the driving mechanism drives the core shaft 14 to rotate, and at the same time, the core shaft 14 drives the fixed seat 3 to rotate, thereby driving the crankshaft 2 on the crankshaft mounting block 4 to rotate, so as to facilitate drilling the crankshaft 2. And during the rotation of the crankshaft 2, the hydraulic medium in the external hydraulic device can enter the pressing mechanism through the liquid inlet and outlet mechanism, thereby providing hydraulic power for the pressing mechanism to clamp the crankshaft 2, and at the same time, it can avoid the hydraulic pipelines from being wound together.

[0071] In the present utility model, the annular mounting seat 12 is fixedly installed on the sliding seat 1, and the annular sealing seat 13 is fixedly installed at the bottom of the annular mounting seat 12, thereby preventing the annular mounting seat 12 and the annular sealing seat 13 from rotating along with the core shaft 14.

[0072] Embodiment 7.

[0073] As Figure 1-13 shown, a crankshaft inclined hole drilling and clamping tooling provided by the present utility model includes a sliding seat 1, a plurality of rotating mechanisms rotatably arranged on the sliding seat 1 and connected to an external hydraulic device, a driving mechanism provided at the bottom of the rotating mechanism for driving the operation of the rotating mechanism, a crankshaft limiting mechanism provided on the rotating mechanism for placing the crankshaft 2, and a pressing mechanism provided on the crankshaft limiting mechanism and connected to the rotating mechanism for pressing the crankshaft 2.

[0074] The rotating mechanism includes an annular mounting seat 12 provided on the sliding seat 1, an annular sealing seat 13 hermetically connected to the bottom of the annular mounting seat 12 and connected to an external hydraulic device, and a mandrel 14 rotatably sealed within the annular mounting seat 12 and the annular sealing seat 13, with one end connected to the annular mounting seat 12 and the other end connected to the driving mechanism; a liquid inlet and outlet mechanism connected to the pressing mechanism is provided on the mandrel 14.

[0075] The liquid inlet and outlet mechanism includes a liquid inlet 15 and a liquid outlet 16 provided on the annular sealing seat 13 and respectively connected to an external hydraulic device, a first annular groove 17 opened on the mandrel 14 and communicating with the liquid inlet 15, a second annular groove 19 opened on the mandrel 14 and communicating with the liquid outlet 16, a liquid inlet pipe 18 led out from the pressing mechanism and communicating with the first annular groove 17, and a liquid outlet pipe 20 led out from the pressing mechanism and communicating with the second annular groove 19.

[0076] In Embodiment 7, based on Embodiment 6, a more preferable structure of the liquid inlet and outlet mechanism is given. Specifically, the liquid inlet and outlet mechanism includes a liquid inlet 15 and a liquid outlet 16 provided on the annular sealing seat 13 and respectively connected to an external hydraulic device, a first annular groove 17 opened on the mandrel 14 and communicating with the liquid inlet 15, a second annular groove 19 opened on the mandrel 14 and communicating with the liquid outlet 16, a liquid inlet pipe 18 led out from the pressing mechanism and communicating with the first annular groove 17, and a liquid outlet pipe 20 led out from the pressing mechanism and communicating with the second annular groove 19.

[0077] In the present utility model, a liquid inlet 15 and a liquid outlet 16 connected to an external hydraulic device are provided on the annular sealing seat 13, a first annular groove 17 connected to the liquid inlet 15 is opened on the mandrel 14, a liquid inlet pipe 18 with one end communicating with the first annular groove 17 and the other end connected to the pressing mechanism is provided inside the mandrel 14, a second annular groove 19 communicating with the liquid outlet 16 is opened on the mandrel 14, and a liquid outlet pipe 20 with one end communicating with the second annular groove 19 and the other end communicating with the liquid outlet 16 is provided inside the mandrel 14. When in use, the hydraulic medium in the external hydraulic device enters the liquid inlet pipe 18 through the liquid inlet 15, thereby driving the pressing mechanism to perform pressing. At the same time, when the pressing mechanism is loosened, the hydraulic medium enters the second annular groove 19 through the liquid outlet pipe 20 and flows back into the external hydraulic device through the liquid outlet 16, thereby facilitating the provision of driving power for the pressing mechanism.

[0078] In the present utility model, several bearings adapted to the mandrel 14 are provided inside the annular mounting seat 12, and the mandrel 14 is rotatably mounted within the bearings.

[0079] The spindle 14 of the present utility model is provided with three sealing grooves 30. One sealing groove 30 is located above the first annular groove 17, one sealing groove 30 is located below the second annular groove 19, and the other sealing groove 30 is located between the first annular groove 17 and the second annular groove 19. Each sealing groove 30 is provided with a sealing ring 29. The inner wall of the annular sealing seat 13 is sealed with the sealing ring 29 (this is a dynamic seal). In this way, a closed liquid inlet flow channel is jointly formed among the first annular groove 17, the sealing ring 29 and the inner wall of the annular sealing seat 13. Similarly, a closed liquid outlet flow channel is jointly formed among the second annular groove 19, the sealing ring 29 and the inner wall of the annular sealing seat 13.

[0080] The liquid inlet pipe 18 of the present utility model includes a liquid inlet through hole opened in the spindle 14 and communicating with the liquid inlet flow channel, a liquid inlet flow channel provided in the spindle 14 and communicating with the liquid inlet through hole, and a hydraulic inlet pipe with one end communicating with the liquid inlet flow channel and the other end connected to the pressing mechanism; the liquid outlet pipe 20 includes a liquid discharge through hole opened in the spindle 14 and communicating with the liquid outlet flow channel, a liquid discharge flow channel provided in the spindle 14 and communicating with the liquid discharge through hole, and a hydraulic discharge pipe with one end communicating with the liquid discharge flow channel and the other end connected to the pressing mechanism. The hydraulic medium in the external hydraulic device enters the liquid inlet flow channel through the liquid inlet 15 under the action of pressure, and enters the liquid inlet flow channel through the liquid inlet through hole, and enters the pressing mechanism through the hydraulic inlet pipe, so as to drive the pressing mechanism. When the liquid needs to be discharged, the hydraulic medium enters the liquid discharge flow channel through the hydraulic discharge pipe, and the hydraulic medium enters the liquid discharge through hole through the liquid discharge flow channel, so that the hydraulic medium enters the liquid outlet flow channel and flows back into the liquid storage tank of the external hydraulic device through the liquid outlet 16.

[0081] Embodiment 8.

[0082] As Figure 1-13 shown, a clamping tool for drilling inclined holes of a crankshaft provided by the present utility model includes a sliding seat 1, a plurality of rotating mechanisms rotatably provided on the sliding seat 1 and connected to an external hydraulic device, a driving mechanism provided at the bottom of the rotating mechanism for driving the rotating mechanism to operate, a crankshaft limiting mechanism provided on the rotating mechanism for placing the crankshaft 2, and a pressing mechanism provided on the crankshaft limiting mechanism and connected to the rotating mechanism for pressing the crankshaft 2.

[0083] The rotating mechanism includes an annular mounting seat 12 provided on the sliding seat 1, an annular sealing seat 13 hermetically connected to the bottom of the annular mounting seat 12 and connected to an external hydraulic device, and a spindle 14 rotatably and sealingly provided in the annular mounting seat 12 and the annular sealing seat 13 with one end connected to the annular mounting seat 12 and the other end connected to the driving mechanism; the spindle 14 is provided with a liquid inlet and outlet mechanism connected to the pressing mechanism.

[0084] The driving mechanism includes a motor mounting base 21 provided at the bottom of the annular seal seat 13, a servo motor 22 provided on the motor mounting base 21, and a coupling 23 with one end connected to the output end of the servo motor 22 and the other end connected to the mandrel 14 and located within the motor mounting base 21.

[0085] Embodiment 8 gives a more preferable structure of the driving mechanism on the basis of Embodiment 6. Specifically, the driving mechanism includes a motor mounting base 21 provided at the bottom of the annular seal seat 13, a servo motor 22 provided on the motor mounting base 21, and a coupling 23 with one end connected to the output end of the servo motor 22 and the other end connected to the mandrel 14 and located within the motor mounting base 21.

[0086] In the present utility model, the motor mounting base 21 is fixedly installed at the bottom of the annular seal seat 13, the servo motor 22 is installed at the bottom of the annular seal seat 13, one end of the coupling 23 is connected to the output end of the servo motor 22 and the other end is connected to the mandrel 14, and the coupling 23 is located within the motor mounting base 21. During use, the servo motor 22 drives the coupling 23 to rotate, and the coupling 23 drives the mandrel 14 to rotate, thereby driving the fixed seat 3 to rotate.

[0087] Embodiment 9.

[0088] As Figure 1-13 shown, a crankshaft inclined hole drilling and clamping tooling provided by the present utility model includes a sliding seat 1, a plurality of rotating mechanisms rotatably provided on the sliding seat 1 and connected to an external hydraulic device, a driving mechanism provided at the bottom of the rotating mechanism for driving the operation of the rotating mechanism, a crankshaft limiting mechanism provided on the rotating mechanism for placing the crankshaft 2, and a pressing mechanism provided on the crankshaft limiting mechanism and connected to the rotating mechanism for pressing the crankshaft 2.

[0089] The pressing mechanism includes a hydraulic cylinder 24 provided on the fixed seat 3 and connected to the rotating mechanism, and a pressing plate 25 provided at the output end of the hydraulic cylinder 24 for pressing the crankshaft balance weight 5.

[0090] Embodiment 9 gives a more preferable structure of the fixed seat 3 on the basis of Embodiment 1. Specifically, the pressing mechanism includes a hydraulic cylinder 24 provided on the fixed seat 3 and connected to the rotating mechanism, and a pressing plate 25 provided at the output end of the hydraulic cylinder 24.

[0091] During use of the present utility model, the hydraulic cylinder 24 drives the pressing plate 25 to move, thereby facilitating the fixing of the crankshaft 2 within the crankshaft limiting mechanism. Specifically, when the crankshaft 2 is placed within the limiting block 8, the bottom of the crankshaft balance weight 5 contacts the top of the limiting block 8, and at the same time, the crankshaft balance weight 5 abuts against the end of the limiting plate 6. Meanwhile, the hydraulic cylinder 24 drives the pressing plate 25 to move, thereby fixing the crankshaft 2 within the limiting block 8.

[0092] During the driving process of the hydraulic cylinder 24 of the present utility model, the hydraulic medium in the external hydraulic equipment enters the liquid inlet flow channel through the liquid inlet 15 under the action of pressure, and enters the liquid inlet flow channel through the liquid inlet through-hole, and enters the pressing mechanism through the hydraulic inlet pipe, thereby driving the hydraulic cylinder 24 to contract and press the crankshaft 2. When controlling the hydraulic cylinder 24 to extend outwards, the hydraulic medium enters the liquid discharge flow channel through the hydraulic discharge pipe, and the hydraulic medium enters the liquid discharge through-hole through the liquid discharge flow channel, so that the hydraulic medium enters the liquid outlet flow channel and flows back into the liquid storage tank of the external hydraulic equipment through the liquid outlet 16, thereby facilitating the driving of the hydraulic cylinder 24.

[0093] Example 10.

[0094] As Figure 1-13 shown, a clamping tool for drilling inclined holes in a crankshaft provided by the present utility model includes a sliding seat 1, a plurality of rotating mechanisms rotatably arranged on the sliding seat 1 and connected to an external hydraulic equipment, a driving mechanism arranged at the bottom of the rotating mechanism for driving the operation of the rotating mechanism, a crankshaft limiting mechanism arranged on the rotating mechanism for placing the crankshaft 2, and a pressing mechanism arranged on the crankshaft limiting mechanism and connected to the rotating mechanism for pressing the crankshaft 2.

[0095] The sliding seat 1 is provided with a mounting hole 26 adapted to the rotating mechanism, and the sliding seat 1 is provided with a protective cover 27 located outside the mounting hole 26. The rotating mechanism is installed in the mounting hole 26 and one end rotates outside the protective cover 27.

[0096] In this Example 10, a more preferable structure of the sliding seat 1 is given on the basis of Example 1. Specifically, the sliding seat 1 is provided with a mounting hole 26 adapted to the rotating mechanism, and the sliding seat 1 is provided with a protective cover 27 located outside the mounting hole 26. The rotating mechanism is installed in the mounting hole 26 and one end rotates outside the protective cover 27.

[0097] The sliding seat 1 of the present utility model is provided with a mounting hole 26 adapted to the rotating mechanism. The mounting hole 26 can facilitate the installation of the rotating mechanism, and the sliding seat 1 is provided with a protective cover 27 located outside the mounting hole 26. The protective cover 27 can facilitate the dust and water protection of the rotating mechanism. Specifically, the rotating ring mounting seat 12 is installed in the mounting hole 26, and one end of the core shaft 14 rotates through the outside of the protective cover 27 and is connected to the fixed seat 3, and the other end rotates through the protective cover 27 and is connected to the coupling 23, thereby improving the service life of the rotating mechanism through the protective cover 27.

[0098] The hydraulic medium used in the present utility model is hydraulic oil.

[0099] The servo motor 22, coupling 23, and hydraulic cylinder 24 used in the present utility model are all prior arts and can be directly purchased and used in the market. Therefore, the structures, circuits, and principles of the servo motor 22, coupling 23, and hydraulic cylinder 24 will not be elaborated herein.

[0100] Finally, it should be noted that the above embodiments are only relatively preferred embodiments of the present utility model to illustrate the technical solutions of the present utility model, rather than limiting it, let alone limiting the patent scope of the present utility model; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model; that is to say, any meaningless modifications or touch-ups made on the main design concept and spirit of the present utility model, as long as the technical problems solved are still the same as those of the present utility model, should be included in the protection scope of the present utility model; in addition, directly or indirectly applying the technical solutions of the present utility model to other related technical fields shall also be included in the patent protection scope of the present utility model by the same token.

Claims

1. A crankshaft inclined hole drilling fixture, characterized in that: The invention comprises a sliding seat (1), a plurality of rotating mechanisms rotatably arranged on the sliding seat (1) and connected to external hydraulic equipment, a driving mechanism arranged at the bottom of the rotating mechanism for driving the rotating mechanism to operate, a crankshaft limiting mechanism arranged on the rotating mechanism for placing a crankshaft (2), and a clamping mechanism arranged on the crankshaft limiting mechanism and connected to the rotating mechanism for clamping the crankshaft (2).

2. A crankshaft inclined hole drilling fixture according to claim 1, characterized in that: The crankshaft limiting mechanism comprises a fixed seat (3) arranged on the rotating mechanism, a crankshaft mounting block (4) arranged on the fixed seat (3) and used for placing the crankshaft (2), and a limiting plate (6) arranged in the crankshaft mounting block (4) and connected to the fixed seat (3) and used for limiting the rotation of the crankshaft balance block (5), and the pressing mechanism is installed on the fixed seat (3).

3. A crankshaft inclined hole drilling fixture according to claim 2, characterized in that: The crankshaft mounting block (4) comprises a base (7) arranged on a fixing seat (3) and a limit block (8) arranged on the base (7); the base (7) and the limit block (8) are an integrated structure; the crankshaft (2) is located in the limit block (8); and the limit plate (6) is installed in the base (7).

4. A crankshaft inclined hole drilling fixture according to claim 3, characterized in that: A through-going clearance groove (9) is provided on the base (7), and mounting grooves (10) matching with the limiting plate (6) are provided on both side walls of the clearance groove (9), and the limiting plate (6) is installed in the mounting groove (10); a V-shaped groove (28) is provided on the limiting block (8), and the crankshaft (2) is pressed in the V-shaped groove (28) by a pressing mechanism.

5. The crankshaft inclined hole drilling fixture according to claim 2, characterized in that: A journal clearance groove (11) adapted to the crankshaft balancing block (5) is provided on the limiting plate (6); the crankshaft balancing block (5) is located in the journal clearance groove (11), and one end of the crankshaft balancing block (5) is tightly pressed against the end surface of the limiting plate (6).

6. The crankshaft inclined hole drilling fixture according to claim 1, characterized in that: The rotating mechanism comprises an annular mounting seat (12) arranged on a sliding seat (1), an annular sealing seat (13) sealedly connected to the bottom of the annular mounting seat (12) and connected to external hydraulic equipment, and a core shaft (14) rotatably arranged between the annular mounting seat (12) and the annular sealing seat (13) and having two ends respectively connected to a crankshaft limiting mechanism and a driving mechanism; a liquid inlet and outlet mechanism is arranged between the annular sealing seat (13) and the pressing mechanism.

7. A crankshaft inclined hole drilling fixture according to claim 6, characterized in that: The liquid inlet and outlet mechanism comprises a liquid inlet (15) and a liquid outlet (16) which are arranged on the annular sealing seat (13) and are respectively connected to external hydraulic equipment, a first annular groove (17) which is opened on the core shaft (14) and is connected to the liquid inlet (15), a second annular groove (19) which is opened on the core shaft (14) and is connected to the liquid outlet (16), a liquid inlet pipe (18) which is connected from the clamping mechanism and is connected to the first annular groove (17), and a liquid outlet pipe (20) which is connected from the clamping mechanism and is connected to the second annular groove (19).

8. The crankshaft inclined hole drilling fixture according to claim 6, characterized in that: The driving mechanism comprises a motor mounting seat (21) arranged at the bottom of the annular sealing seat (13), a servo motor (22) arranged on the motor mounting seat (21), and a coupling (23) connected between the output end of the servo motor (22) and the core shaft (14) and located in the motor mounting seat (21).

9. The crankshaft inclined hole drilling fixture according to claim 1, characterized in that: The clamping mechanism comprises a hydraulic cylinder (24) arranged on a fixed seat (3) and connected to the rotating mechanism, and a pressing plate (25) arranged on the output end of the hydraulic cylinder (24).

10. The crankshaft inclined hole drilling fixture according to claim 1, characterized in that: The sliding seat (1) is provided with a mounting hole (26) matched with the rotating mechanism, the sliding seat (1) is provided with a protective cover (27) located outside the mounting hole (26), the rotating mechanism is installed in the mounting hole (26) and one end passes through the protective cover (27) to be connected with the crankshaft limiting mechanism.

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