Special mandrel tool for machining cylinder cover of diesel engine

Abstract

The utility model relates to the field of diesel engine cylinder cover machining, in particular to a special mandrel tool for diesel engine cylinder cover machining, which comprises a machine tool vertical workbench, and a third threaded hole is arranged in the middle of the inside of the machine tool vertical workbench. The third threaded hole is in threaded connection with a connecting shaft through a second bolt, the connecting shaft is fixedly connected to the middle of the rear side of the mandrel tool, fourth threaded holes are formed in the two sides of the third threaded hole through a machine tool vertical workbench, and the fourth threaded holes are in threaded connection with a basic shaft through first bolts. According to the core shaft tool special for machining the diesel engine cylinder cover, the core shaft tool is installed, a crane does not need to hoist the core shaft tool for installation when a machine type is replaced, one inserting rod is light in weight, an operator on site can easily pick up the core shaft tool for installation, and meanwhile the core shaft inserting rod is installed. When a machine type is replaced, mandrel tools with different diameters do not need to be purchased repeatedly for fixation, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of diesel engine cylinder head processing, in particular to a special mandrel tooling for diesel engine cylinder head processing. Background Art

[0002] The mandrel has multiple functions such as fixing, connecting, transmitting, and supporting. In mechanical equipment, the mandrel can be used as a component to support the bearing and directly transmit force. At the same time, in the transmission of mechanical equipment, the mandrel can transmit motion and force to achieve transmission between different components. At the current stage of technological development, with the non-uniform processing dimensions of cylinder heads and the large variety of machine models, additional auxiliary labor time will be generated during processing, including waiting for the crane, looking for tooling, etc. While increasing the auxiliary time, it also reduces the effective cutting rate of the machine tool.

[0003] Therefore, it is necessary to provide a new special mandrel tooling for diesel engine cylinder head processing to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a special mandrel tooling for machining a diesel engine cylinder head.

[0005] The utility model provides a special mandrel tool for processing a diesel engine cylinder head, comprising: a machine tool vertical worktable, a third threaded hole is arranged in the middle of the machine tool vertical worktable, the third threaded hole is threadedly connected with a connecting shaft through a second bolt, the connecting shaft is fixedly connected to the middle of the rear side of the mandrel tool, fourth threaded holes are arranged on both sides of the third threaded hole through the machine tool vertical worktable, the fourth threaded hole is threadedly connected with a basic shaft through a first bolt, the four left sides of the mandrel tool are fixedly connected with supporting tooling, a cylinder head is placed on the supporting tooling, the mandrel tooling is firstly fixed on the machine tool vertical worktable through the connecting shaft, the second bolt and the third threaded hole, and then the basic shaft and the vertical worktable of the machine tool are connected by the first bolt and The fourth threaded hole is threadedly fixed, and its inner hole is clearance-matched with the connecting shaft. At this point, the basic installation is completed. Then, according to different machine models, three holes are selected between the three second positioning holes and the first positioning hole, and the first core shaft rod or the second core shaft rod is inserted. The basic shaft and the core shaft rod are fixed by oblique bolts. The basic shaft is inclined at° with the axis, and the corresponding fixed position of the core shaft rod is also made with an inclined plane at° to ensure verticality, so as to prevent the rod from falling off. The size of the installation groove is changed by using different types of core shaft rods, so as to fix the main core shaft of different thicknesses, and complete the replacement of six machine models from machine to machinist with different cylinder diameters. After the installation is completed, the cylinder head is supported and fixed by a supporting tool.

[0006] Preferably, a plurality of second positioning holes are arranged around the outer side of the core shaft tooling, and there are three second positioning holes, wherein a first positioning hole is arranged at the lower left side of one of the second positioning holes through the core shaft tooling, a first core shaft plug rod is slidably connected inside the second positioning hole, a second core shaft plug rod is slidably connected inside the first positioning hole, a latch is fixedly connected to the right ends of the first core shaft plug rod and the second core shaft plug rod, an oblique threaded hole is arranged above the latch, an end of the latch away from the first core shaft plug rod is arranged inside the mounting groove, a second threaded hole is arranged on the surface of the core shaft tooling, and a base shaft is fixedly connected inside the second threaded hole , according to different machine models, select three holes between the three second positioning holes and the first positioning holes, and insert the first mandrel rod or the second mandrel rod, and then fix the basic shaft and the mandrel rod with oblique bolts. The basic shaft is inclined at° with the axis, and the corresponding fixed position of the mandrel rod is also made with an inclined plane at° to ensure verticality, so as to prevent the rod from falling off. The size of the installation groove is changed by using different types of mandrel rods to fix the main mandrels of different thicknesses, and the replacement of six types of machine models from machine to machinist with different cylinder diameters is completed. After the installation is completed, the cylinder head is supported and fixed with a supporting tool.

[0007] Preferably, first threaded holes are provided on all four sides of the surface of the core shaft tooling, and the first threaded holes are threadedly connected with oblique threaded holes through oblique bolts. The base shaft and the core shaft rod are fixed by the oblique bolts. The base shaft is inclined at ° to the axis, and the corresponding fixed position of the core shaft rod is also made into an inclined plane at ° to ensure verticality, so as to prevent the rod from falling off.

[0008] Preferably, an installation groove is provided in the middle of the core shaft tooling, and the main core shaft is connected to the inside of the installation groove through the first core shaft rod and the second core shaft rod. The size of the installation groove can be changed by using different types of core shaft rods to fix the main core shafts of different thicknesses, thereby completing the replacement of six types of machine types from machine to machine worker in terms of cylinder diameter. After the installation is completed, the cylinder head is supported and fixed by a supporting tooling.

[0009] Compared with the related art, the special mandrel tooling for diesel engine cylinder head processing provided by the utility model has the following beneficial effects:

[0010] 1. The utility model provides a special mandrel tooling for diesel engine cylinder head processing. By installing the mandrel tooling, it is no longer necessary to lift the machine for installation when changing the model. The weight of one of the plugs is very light, and the on-site operator can easily pick it up for installation.

[0011] 2. The utility model provides a special mandrel tooling for diesel engine cylinder head processing. By installing the mandrel insert rod, it is no longer necessary to repeatedly purchase mandrel tooling of different diameters for fixing when changing the model, thus saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1A structural schematic diagram of a preferred embodiment of a special mandrel tooling for diesel engine cylinder head machining provided by the utility model;

[0013] Figure 2 for Figure 1 The structural schematic diagram of the mandrel tooling shown;

[0014] Figure 3 for Figure 1 The structural schematic diagram of the connection structure between the mandrel fixture and the machine tool vertical worktable is shown;

[0015] Figure 4 for Figure 1 A schematic diagram of the internal structure of the mandrel tooling shown;

[0016] Figure 5 Figure 1 The structural schematic diagram of the core shaft rod fixing structure shown.

[0017] Numbers in the figure: 1. vertical worktable of machine tool; 2. connecting shaft; 3. basic shaft; 4. supporting tooling; 5. cylinder head; 6. first mandrel rod; 7. second mandrel rod; 8. main mandrel; 9. mandrel tooling; 10. first bolt; 11. first threaded hole; 12. second bolt; 13. first positioning hole; 14. second positioning hole; 15. second threaded hole; 16. third threaded hole; 17. fourth threaded hole; 18. latch; 19. oblique threaded hole; 20. oblique bolt; 21. mounting groove. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0020] See also Figures 1 to 5The embodiment of the utility model provides a special mandrel tool for diesel engine cylinder head processing, which includes: a machine tool vertical workbench 1, a third threaded hole 16 is arranged in the middle of the machine tool vertical workbench 1, the third threaded hole 16 is threadedly connected with a connecting shaft 2 through a second bolt 12, and the connecting shaft 2 is fixedly connected to the middle of the rear side of the mandrel tool 9, and fourth threaded holes 17 are arranged on both sides of the third threaded hole 16 through the machine tool vertical workbench 1, and the fourth threaded hole 17 is threadedly connected with a basic shaft 3 through a first bolt 10, and the four left sides of the mandrel tool 9 are fixedly connected with supporting tool 4, and a cylinder head 5 is placed on the supporting tool 4, firstly, the mandrel tool 9 is fixed on the machine tool vertical workbench 1 through the connecting shaft 2, the second bolt 12 and the third threaded hole 16, and then the basic shaft 3 is fixedly connected to the machine tool vertical workbench 1. The vertical worktable 1 of the vertical machine tool is threadedly fixed with the first bolt 10 and the fourth threaded hole 17, and the inner hole thereof is clearance-matched with the connecting shaft 2. At this point, the basic installation is completed. Then, according to different machine models, three holes are selected between the three second positioning holes 14 and the first positioning hole 13, and the first core shaft rod 6 or the second core shaft rod 7 is inserted. The basic shaft 3 and the core shaft rod are fixed by the oblique bolt 20. The basic shaft 3 is inclined 2° with the axis. At the same time, the corresponding fixed position of the core shaft rod is also made into a plane inclined 2° to ensure verticality, so as to prevent the rod from falling off. The size of the installation groove 21 is changed by using different types of core shaft rods, so as to fix the main core shaft 8 of different thicknesses, and the replacement of six machine models with cylinder diameters ranging from 60 to 95 is completed. After the installation is completed, the cylinder head 5 is supported and fixed by the supporting tooling 4.

[0021] In the embodiments of the present invention, please refer to Figures 1 to 5A plurality of second positioning holes 14 are arranged around the outer side of the mandrel tooling 9, and there are three second positioning holes 14. A first positioning hole 13 is arranged at the lower left of one of the second positioning holes 14 through the mandrel tooling 9, and a first mandrel plug rod 6 is slidably connected inside the second positioning hole 14, and a second mandrel plug rod 7 is slidably connected inside the first positioning hole 13. The right ends of the first mandrel plug rod 6 and the second mandrel plug rod 7 are fixedly connected with a latch 18, and an oblique threaded hole 19 is arranged above the latch 18. The end of the latch 18 away from the first mandrel plug rod 6 is arranged inside the mounting groove 21, and a second threaded hole 15 is arranged on the surface of the mandrel tooling 9, and a second threaded hole 15 is fixedly connected inside A basic shaft 3 is connected. Three holes are selected between the three second positioning holes 14 and the first positioning hole 13 according to different machine models, and the first core shaft rod 6 or the second core shaft rod 7 is inserted, and then the basic shaft 3 and the core shaft rod are fixed by the oblique bolt 20. The basic shaft 3 is inclined 2° with the axis, and the corresponding fixed position of the core shaft rod is also made into a plane inclined 2° to ensure verticality, so as to prevent the rod from falling off. The size of the installation groove 21 is changed by using different types of core shaft rods, so as to fix the main core shaft 8 of different thicknesses, and complete the replacement of six machine models with cylinder diameters ranging from 60 to 95. After the installation is completed, the cylinder head 5 is supported and fixed by the supporting tooling 4.

[0022] In the embodiments of the present invention, please refer to Figures 1 to 5 The surface of the mandrel tooling 9 is provided with first threaded holes 11 all around, and the first threaded holes 11 are threadedly connected with the oblique threaded holes 19 through oblique bolts 20. The basic shaft 3 and the mandrel plug rod are fixed by the oblique bolts 20. The basic shaft 3 is inclined 2° with the axis, and the corresponding fixed position of the mandrel plug rod is also made with a plane inclined 2° to ensure verticality, so as to prevent the plug rod from falling off.

[0023] In the embodiments of the present invention, please refer to Figures 1 to 5 A mounting groove 21 is provided in the middle of the core shaft tooling 9, and the main core shaft 8 is connected to the inside of the mounting groove 21 through the first core shaft plug 6 and the second core shaft plug 7. The size of the mounting groove 21 can be changed by using different types of core shaft plugs, so as to fix the main core shaft 8 of different thicknesses, and complete the replacement of six types of machines with cylinder diameters ranging from 60 to 95. After the installation is completed, the cylinder head 5 is supported and fixed by the supporting tooling 4.

[0024] The working principle of the special mandrel tooling for diesel engine cylinder head processing provided by the utility model is as follows: first, the mandrel tooling 9 is fixed on the vertical worktable 1 of the machine tool through the connecting shaft 2, the second bolt 12 and the third threaded hole 16, and then the basic shaft 3 is threadedly fixed to the vertical worktable 1 of the vertical machine tool with the first bolt 10 and the fourth threaded hole 17, and its inner hole is clearance-matched with the connecting shaft 2. At this point, the basic installation is completed, and then three holes are selected from the three second positioning holes 14 and the first positioning hole 13 according to different machine models, and the first mandrel insert rod 6 or the second mandrel insert rod 7 is inserted, and then the base shaft 3 and the mandrel insert rod are fixed by the oblique bolt 20. The base shaft 3 is inclined 2° with the axis, and the corresponding fixed position of the core shaft plug rod is also made into a plane inclined 2° to ensure verticality, so as to prevent the plug rod from falling off. The size of the installation groove 21 is changed by different types of core shaft plug rods, so as to fix the main core shaft 8 of different thicknesses, and complete the replacement of six models with cylinder diameters ranging from 60 to 95. After the installation is completed, the cylinder head 5 is supported and fixed by the supporting tool 4. When changing the model, it is no longer necessary to lift the machine for installation. The weight of one plug rod is very light, and the on-site operator can easily pick it up and install it. When changing the model, there is no need to repeatedly purchase core shaft tooling 9 of different diameters for fixing, which saves costs.

[0025] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A special mandrel tool for diesel engine cylinder head processing, characterized in that: include: Machine tool vertical worktable (1); A spindle fixture (9), wherein a third threaded hole (16) is arranged in the middle of the machine tool vertical worktable (1), wherein the third threaded hole (16) is threadedly connected to a connecting shaft (2) via a second bolt (12), and the connecting shaft (2) is fixedly connected to the middle of the rear side of the spindle fixture (9); A basic shaft (3), fourth threaded holes (17) are arranged on both sides of the third threaded hole (16) through the machine tool vertical worktable (1), and the fourth threaded hole (17) is threadedly connected to the basic shaft (3) through a first bolt (10); The cylinder head (5) is fixedly connected to the support tooling (4) on the four left sides of the core shaft tooling (9), and the cylinder head (5) is placed on the support tooling (4).

2. The special mandrel tooling for diesel engine cylinder head processing according to claim 1 is characterized in that: A plurality of second positioning holes (14) are arranged around the outer side of the mandrel tooling (9), and there are three second positioning holes (14). A first positioning hole (13) is arranged at the lower left of one of the second positioning holes (14) through the mandrel tooling (9).

3. The special mandrel tooling for diesel engine cylinder head machining according to claim 2 is characterized in that: The second positioning hole (14) is slidably connected to the inside of the first positioning hole (13), and the second core shaft rod (7) is slidably connected to the inside of the first positioning hole (13). The right ends of the first core shaft rod (6) and the second core shaft rod (7) are fixedly connected to a latch pin (18), and an oblique threaded hole (19) is provided above the latch pin (18).

4. The special mandrel tooling for diesel engine cylinder head machining according to claim 3 is characterized in that: One end of the latch pin (18) away from the first spindle rod (6) is arranged inside the mounting groove (21).

5. The special mandrel tooling for diesel engine cylinder head processing according to claim 1 is characterized in that: The surface of the core shaft fixture (9) is provided with a second threaded hole (15), and the inside of the second threaded hole (15) is fixedly connected with a base shaft (3).

6. The special mandrel tooling for diesel engine cylinder head machining according to claim 1 is characterized in that: The surface of the mandrel tooling (9) is provided with first threaded holes (11) on all sides, and the first threaded holes (11) are threadedly connected to the oblique threaded holes (19) via oblique bolts (20).

7. The special mandrel tooling for diesel engine cylinder head machining according to claim 1 is characterized in that: A mounting groove (21) is provided in the middle of the mandrel tooling (9), and a main mandrel (8) is connected inside the mounting groove (21) via a first mandrel insert rod (6) and a second mandrel insert rod (7).

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