Portable Tooling for Drilling Oblique Holes

Abstract

The present invention belongs to the field of drilling tooling, specifically a portable inclined hole drilling tooling, which includes a tooling base, a tooling inclined plate and a magnetic block. The top of the tooling base is provided with a tooling inclined plate, and the front ends on both sides of the tooling base and the tooling inclined plate are provided with inclined fixing components. The bottom of the tooling base is fixed with a magnetic block. One connecting block is fixed on both sides of the rear end of the tooling inclined plate, and two connecting blocks are fixed on both sides of the rear end of the tooling base. The present invention realizes inclination by lifting the front end of the tooling inclined plate and cooperating with the hinge structure. The commonly used adjustment angles cover 15°, 30°, 45°, 60°, 75° and 90°, and multiple angle ranges can be flexibly set between 0° and 90° according to actual needs, such as setting ten external grooves to achieve angle adjustment at 10° intervals. During the adjustment process, specific external grooves, sleeves, return springs, clamping blocks and card slot structures enable the commonly used angles to be directly adjusted without having to closely monitor the pointer for fine operation, greatly improving the adjustment convenience and work efficiency.

Description

Technical Field

[0001] The present invention belongs to the field of drilling tooling, specifically a portable inclined hole drilling tooling. Background Art

[0002] In the field of machining, the operation of drilling inclined holes has long faced many challenges. Traditional drilling equipment mostly has a fixed angle or can only be adjusted at a limited angle, making it difficult to meet the complex and diverse processing requirements. When it is necessary to drill inclined holes with precise angles on workpieces of different materials and shapes, the drawback of poor flexibility of existing tooling becomes prominent.

[0003] On the one hand, in some small machining workshops, workers often need to manually adjust the angle of the drilling equipment. This operation method not only consumes a large amount of manpower and time, but also the accuracy of angle adjustment depends on the experience of workers, making it difficult to ensure consistency, resulting in uneven quality of the drilled inclined holes and a high rejection rate.

[0004] On the other hand, for large machining enterprises, although they have relatively advanced equipment, the equipment is large in volume and complex in structure, making it inconvenient to transfer between different work sites. When faced with some projects that require on-site operation and limited space, large equipment is difficult to use, and the high equipment maintenance cost also increases the burden on the enterprise.

[0005] Therefore, the present invention provides a portable inclined hole drilling tooling. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: The portable inclined hole drilling tooling described in the present invention includes a tooling base, a tooling inclined plate, and a magnetic block. The top of the tooling base is provided with a tooling inclined plate. Inclined fixing components are provided at the front ends of both sides of the tooling base and the tooling inclined plate. A magnetic block is fixed to the bottom of the tooling base. Connecting blocks one are fixed to both sides of the rear end of the tooling inclined plate, and connecting blocks two are fixed to both sides of the rear end of the tooling base. The connecting blocks two are located on one side of the connecting blocks one. A connecting component is provided on the side of the connecting blocks two facing the connecting blocks one.

[0008] Preferably, the inclined fixing component includes lead screws provided at the front ends of both sides of the tooling base and the tooling inclined plate. Nuts one are threadedly connected to the upper and lower ends of the lead screws. Connecting grooves are opened at the front ends of both sides of the inner parts of the tooling base and the tooling inclined plate. Connecting holes are opened at the front ends of both side walls of the tooling base and the tooling inclined plate. The connecting holes are communicated with the inside of the connecting grooves. Two connecting sleeves are sleeved on the outside of each lead screw. The connecting sleeves are respectively located on one side of the connecting holes. A connecting pin is rotatably arranged inside the connecting holes. The connecting pin is fixed to one side of the connecting sleeve. A nut two is arranged inside the connecting groove. The nut two is threadedly connected to the end of the connecting pin and abuts against the inner side wall of the connecting groove.

[0009] Preferably, the connecting component includes a hinge groove formed on one side of the second connecting block, the hinge groove faces the side of the first connecting block, outer sleeve rings are fixed on both sides inside the hinge groove, a hinge shaft is rotatably arranged inside the outer sleeve rings, the hinge shaft is fixed on one side of the first connecting block, rotating rings are fixed on both sides outside the hinge shaft, the rotating rings are rotatably arranged inside the outer sleeve rings, an extension shaft is fixed at the middle position on the other side of the hinge shaft, the extension shaft is rotatably arranged inside the second connecting block, the extension shaft protrudes from the other side of the second connecting block and is fixed with an external disk, a pointer is fixed on the top of the external disk, an arc-shaped scale is arranged above the pointer, the arc-shaped scale is fixed on the outer side wall of the second connecting block, and a pre-fixing component is arranged between the external disk and the second connecting block.

[0010] Preferably, the pre-fixing component includes external slots formed at equal intervals on the outer side wall of the second connecting block, the external slots are located below the pointer, a sleeve is fixed inside the external slots, a return spring is fixed inside the sleeve, a clamping block is fixed at the end of the return spring, the clamping block protrudes from the front end of the sleeve and is clamped into a clamping groove, and the clamping groove is formed on the outer side wall of the external disk facing the second connecting block.

[0011] Preferably, a pushing cavity is formed on the outer periphery at the middle position inside the hinge groove, a stress plate is arranged inside the pushing cavity, a resisting block is fixed at the end of the stress plate facing the hinge shaft, the resisting block is placed inside the hinge groove and abuts against the outer side wall of the hinge shaft, a retracting spring is fixed at the other end of the stress plate, a threaded groove is arranged on the outer periphery of the extension shaft, the threaded groove is formed inside the second connecting block, a threaded pin is in threaded connection inside the threaded groove, an internal slot is formed at the end of the threaded groove facing the pushing cavity, a pushing pipe is embedded inside the internal slot, a piston is arranged inside the pushing pipe, a connecting rod is fixed between the piston and the threaded pin, and an oil guiding groove is formed at the end of the internal slot facing the pushing cavity, and the oil guiding groove is communicated with the inside of the pushing cavity.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. For the portable inclined hole drilling tooling of the present invention, the front end of the tooling inclined plate is lifted and cooperated with the hinge structure to achieve inclination. The commonly used adjustment angles cover 15°, 30°, 45°, 60°, 75° and 90°, and multiple angle ranges can be flexibly set between 0° and 90° according to actual needs. For example, ten external slots are set to achieve angle adjustment at 10° intervals. During the adjustment process, the specific external slots, sleeves, return springs, clamping blocks and clamping groove structures enable direct adjustment of the commonly used angles without closely watching the pointer for fine operation, greatly improving the adjustment convenience and working efficiency.

[0014] 2. For the portable inclined hole drilling tooling of the present invention, when the tooling inclined plate is inclined, the first connecting block drives the hinge shaft to rotate, and then the pointer rotates on the arc-shaped scale, accurately indicating the inclination angle and providing an intuitive and clear angle reference for the operator.

[0015] 3. For the portable inclined hole drilling tooling described in the present invention, after adjusting the inclined plate of the tooling to the required inclined position, tightening the second nut can fix the position of the connecting sleeve and fix the inclined angle. At the same time, by rotating the threaded pin to push the hydraulic oil, the hydraulic oil acts to make the abutting block tightly abut against the outer wall of the hinge shaft, assisting in fixing the position of the hinge shaft, effectively preventing the inclination deviation caused by unstable angle fixing during the processing operation, and ensuring the processing quality and accuracy.

[0016] 4. For the portable inclined hole drilling tooling described in the present invention, by using the magnetic blocks at the bottom of the tooling base, it can be quickly adsorbed on the upper platen of the tooling, realizing the simple installation of the tooling, greatly saving the installation time and labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the drawings.

[0018] Figure 1 is the overall structure in the present invention Figure 1 ;

[0019] Figure 2 is the overall structure in the present invention Figure 2 ;

[0020] Figure 3 is the unfolded structure diagram of the tooling in the present invention;

[0021] Figure 4 is the partial structure split diagram of the tooling in the present invention;

[0022] Figure 5 is the partial structure of the hinge assembly in the present invention Figure 1 ;

[0023] Figure 6 is the cross-sectional view of the partial structure of the hinge assembly in the present invention;

[0024] Figure 7 is in the present invention Figure 6 the enlarged structure diagram at A;

[0025] Figure 8 is the cross-sectional view of the side view structure of the hinge assembly in the present invention;

[0026] Figure 9 is the partial structure of the hinge assembly in the present invention Figure 2 ;

[0027] Figure 10 is the partial structure split diagram of the hinge assembly in the present invention;

[0028] Figure 11 is in the present invention Figure 10 the enlarged structure diagram at B;

[0029] Figure 12 It is the pointer and card slot structure diagram in the present invention;

[0030] Figure 13 It is the partial structure sectional view of the external disk in the present invention.

[0031] In the figure: 1. Tooling base; 2. Tooling inclined plate; 3. Connection groove; 31. Lead screw; 32. Connection sleeve; 33. Connection hole; 34. Nut 1; 35. Connection pin; 36. Nut 2; 4. Magnetic block; 5. Connection block 1; 51. Hinge groove; 52. Hinge shaft; 53. Outer sleeve ring; 54. Rotating ring; 55. Extension shaft; 56. External disk; 57. Pointer; 58. Arc scale; 59. External slot; 591. Sleeve; 592. Return spring; 593. Block; 594. Card slot; 6. Connection block 2; 61. Thread groove; 62. Thread pin; 63. Inner slot; 64. Injection pipe; 65. Connecting rod; 66. Piston; 67. Oil guide groove; 68. Pushing cavity; 69. Force-bearing plate; 610. Retraction spring; 611. Blocking block. Specific embodiments

[0032] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0033] As Figures 1 to 13 shown, the portable inclined hole drilling tooling of the embodiment of the present invention includes a tooling base 1, a tooling inclined plate 2 and a magnetic block 4. A tooling inclined plate 2 is arranged on the top of the tooling base 1. Inclined fixing components are arranged at the front ends on both sides of the tooling base 1 and the tooling inclined plate 2. A magnetic block 4 is fixed at the bottom of the tooling base 1. Connection blocks 1 5 are fixed at both sides of the rear end of the tooling inclined plate 2. Connection blocks 2 6 are fixed at both sides of the rear end of the tooling base 1. The connection block 2 6 is located on one side of the connection block 1 5. A connection component is arranged on the side of the connection block 2 6 facing the connection block 1 5.

[0034] The inclined fixing component includes lead screws 31 arranged at the front ends on both sides of the tooling base 1 and the tooling inclined plate 2. Nuts 1 34 are threadedly connected to the upper and lower ends of the lead screws 31. Connection grooves 3 are opened at the front ends of both sides inside the tooling base 1 and the tooling inclined plate 2. Connection holes 33 are opened at the front ends of both side walls of the tooling base 1 and the tooling inclined plate 2. The connection holes 33 are communicated with the inside of the connection grooves 3. Two connection sleeves 32 are sleeved on the outside of each lead screw 31. The connection sleeves 32 are respectively located on one side of the connection holes 33. A connection pin 35 is rotatably arranged inside the connection holes 33. The connection pin 35 is fixed to one side of the connection sleeve 32. Nuts 2 36 are arranged inside the connection grooves 3. The nuts 2 36 are threadedly connected to the ends of the connection pins 35 and are in contact with the inner side walls of the connection grooves 3.

[0035] The connecting component includes a hinge groove 51 opened on one side of the second connecting block 6. The hinge groove 51 faces the side of the first connecting block 5. On both sides inside the hinge groove 51, there are fixed outer sleeve rings 53. Inside the outer sleeve rings 53, there is a rotatably arranged hinge shaft 52, which is fixed to one side of the first connecting block 5. On both sides outside the hinge shaft 52, there are fixed rotating rings 54, and the rotating rings 54 are rotatably arranged inside the outer sleeve rings 53. At the middle position on the other side of the hinge shaft 52, there is a fixed extension shaft 55, and the extension shaft 55 is rotatably arranged inside the second connecting block 6. The extension shaft 55 protrudes from the other side of the second connecting block 6 and is fixed with an external disk 56. On the top of the external disk 56, there is a fixed pointer 57. Above the pointer 57, there is an arc-shaped scale 58, and the arc-shaped scale 58 is fixed on the outer side wall of the second connecting block 6. Between the external disk 56 and the second connecting block 6, there is a pre-fixing component.

[0036] The pre-fixing component includes external slots 59 opened at equal intervals on the outer side wall of the second connecting block 6. The external slots 59 are located below the pointer 57. Inside the external slots 59, there is a fixed sleeve 591. Inside the sleeve 591, there is a fixed return spring 592. At the end of the return spring 592, there is a fixed block 593, and the block 593 protrudes from the front end of the sleeve 591 and is inserted into a card slot 594, and the card slot 594 is opened on the outer side wall of the external disk 56 facing the second connecting block 6.

[0037] On the outer periphery at the middle position inside the hinge groove 51, there is a push cavity 68 opened. Inside the push cavity 68, there is a stress plate 69. At the end of the stress plate 69 facing the hinge shaft 52, there is a fixed abutting block 611, and the abutting block 611 is placed inside the hinge groove 51 and abuts tightly against the outer side wall of the hinge shaft 52. At the other end of the stress plate 69, there is a fixed retraction spring 610. On the outer periphery of the extension shaft 55, there is a thread groove 61, and the thread groove 61 is opened inside the second connecting block 6. Inside the thread groove 61, there is a threadedly connected thread pin 62. At the end of the thread groove 61 facing the push cavity 68, there is an internal slot 63, and inside the internal slot 63, there is an embedded injection pipe 64. Inside the injection pipe 64, there is a piston 66, and between the piston 66 and the thread pin 62, there is a fixed connecting rod 65. At the end of the internal slot 63 facing the push cavity 68, there is an oil guide groove 67, and the oil guide groove 67 is connected to the inside of the push cavity 68.

[0038] Specifically, a hinge structure is realized between the back end of the tooling base 1 and the tooling inclined plate 2 by means of a connecting component. A magnetic block 4 is arranged at the bottom of the tooling base 1. When actually installing the tooling, place the tooling base 1 on the surface of the tooling upper table board, and utilize the strong magnetic force of the magnetic block 4 to tightly adsorb on the tooling upper table board, quickly and conveniently completing the installation of the entire tooling, laying a solid foundation for the subsequent operation links.

[0039] Figure 1It clearly shows the intuitive appearance of the tooling inclined plate 2 in a horizontal state. In actual operation, the staff only needs to manually lift the front end of the tooling inclined plate 2. At this time, since the tooling base 1 and the rear end of the tooling inclined plate 2 are hinged through a connecting component, the tooling inclined plate 2 will be slowly lifted up with the hinge point as the axis under the drive of the lifting action, thereby making it appear in an inclined state. This inclined state is Figure 3 The drilling equipment is installed on the tooling inclined plate 2. Once the tooling inclined plate 2 is tilted, the drilling equipment installed on it will also tilt synchronously. In this way, with the help of the tilted drilling equipment, the staff can easily and efficiently perform the inclined hole drilling operation, which greatly meets the needs of various complex processing scenarios for inclined hole processing.

[0040] When the front end of the tooling inclined plate 2 is lifted upward and gradually tilted, a series of coordinated actions will occur in the connecting sleeves 32 hinged by the connecting pins 35 on both sides of the tooling inclined plate 2. The connecting sleeve 32 will slide upward along the axial direction of the screw rod 31 outside the screw rod 31, and at the same time, the connecting sleeve 32 will also rotate with the connecting pin 35 as the axis. In this process, the rotation of the connecting sleeve 32 will generate a driving force, causing the screw rod 31 to tilt with the connecting pins 35 of the connecting sleeves 32 on both sides of the tooling base 1 as the axis. When the staff adjusts the tooling inclined plate 2 to the desired tilting position, they only need to tighten the nut 36, and the nut 36 will apply pressure to the connecting sleeve 32, thereby firmly pressing the position of the connecting sleeve 32. At this point, the adjustment operation of the tilt angle of the tooling inclined plate 2 is successfully completed.

[0041] Further, when the tooling inclined plate 2 is lifted to adjust its inclination angle, the first connecting block 5 drives the hinge shaft 52 closely connected thereto to rotate synchronously. At the same time, outside the hinge shaft 52, a rotating ring 54 is fixed, and the rotating ring 54 is located inside the outer sleeve ring 53. When the hinge shaft 52 rotates, the rotating ring 54 will rotate smoothly inside the outer sleeve ring 53. This rotation method can not only ensure the stability of the rotation of the hinge shaft 52, but also effectively reduce the friction during the rotation. The rotation of the hinge shaft 52 will also drive the extension shaft 55 and the external disk 56 connected to the extension shaft 55 to rotate together through mechanical transmission. The rotation of the external disk 56 will further drive the pointer 57 to rotate around the fixed axis. Among them, the position pointed by the pointer 57 is of great significance. It points to the scale on the arc-shaped scale 58. When the tooling inclined plate 2 is in the initial horizontal state, the pointer 57 exactly points to the 0° position on the arc-shaped scale 58. Subsequently, when the worker manually lifts the tooling inclined plate 2 to make it gradually inclined, the external disk 56 will drive the pointer 57 to rotate together. The pointer 57 will start from the original 0° position pointing to the arc-shaped scale 58 and gradually rotate to point to other scales. For example, when the tooling inclined plate 2 is inclined to 45°, the external disk 56 drives the pointer 57 to rotate synchronously by 45°. At this time, the pointer 57 will accurately point to the 45° position on the arc-shaped scale 58.

[0042] In actual production operations, the commonly used adjustment angles for the inclination of the tooling inclined plate 2 are 15°, 30°, 45°, 60°, 75° and 90°. It is intuitively reflected in Figure 9 . As Figure 9 shown, six external slots 59 are provided in the figure. The positions of these six external slots 59 correspond to the six commonly used angles of 15°, 30°, 45°, 60°, 75° and 90° respectively. It should be noted that the angular intervals between adjacent external slots 59 are all 15°. Inside each external slot 59, a set of mechanical structures are provided, including a sleeve 591, a return spring 592 and a block 593. On the side wall of the external disk 56, twelve card slots 594 are evenly provided. During the process of adjusting the inclination angle of the tooling inclined plate 2, the six blocks 593 will be sequentially stuck in six of the card slots 594 on one side.

[0043] The specific working process is as follows: When the worker lifts the tooling inclined plate 2 and rotates the external disk 56 by 15°, the side wall of the external disk 56 will first squeeze the six clamping blocks 593. Under the squeezing force, the clamping blocks 593 retract into the sleeve 591. At the same time, during the process of the clamping blocks 593 retracting into the sleeve 591, they will squeeze the return spring 592, causing the return spring 592 to contract and store elastic potential energy. When the rotation of the external disk 56 by 15° is completed, the six clamping blocks 593 will move to the positions of the adjacent card slots 594 in sequence. At this time, the return spring 592 begins to release the elastic potential energy stored before, and uses its strong elastic force to push the clamping blocks 593 to quickly snap into the card slots 594. Thus, the adjustment work of the tooling inclined plate 2 tilting by 15° is completed. If it is necessary to adjust the tooling inclined plate 2 to tilt by 30°, the worker only needs to lift the tooling inclined plate 2 again, and the six clamping blocks 593 will rotate by 15° again and snap into the adjacent card slots 594, so that the tooling inclined plate 2 can be smoothly tilted to 30°. In this way, the worker can conveniently perform direct adjustment of the six common angles of 15°, 30°, 45°, 60°, 75° and 90°, without the worker constantly staring at the pointing angle of the pointer 57 and then performing cumbersome and delicate corresponding adjustment operations, greatly improving the convenience and working efficiency of the inclination angle adjustment of the tooling inclined plate 2.

[0044] Here, it should be particularly noted that in the actual tooling application scenario, multiple angle ranges between 0° and 90° can be flexibly set according to different actual usage requirements. For example, if ten external slots 59 are set between 0° and 90°, and the angle interval between each external slot 59 is 10°, then when the worker adjusts the inclination angle of the tooling inclined plate 2, accurate adjustment of these angles of 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90° can be easily achieved, fully demonstrating the high flexibility and wide applicability of the tooling in terms of angle adjustment.

[0045] Furthermore, in order to further improve the stability of the tooling inclined plate 2 after the inclination angle is fixed, during the tooling design, an appropriate amount of hydraulic oil is pre-filled in the injection pipe 64, the oil guide groove 67 and the pressing cavity 68. When the tooling inclined plate 2 is tilted to the required position and its position is locked and fixed with the nut two 36, the staff rotates the threaded pin 62. During the rotation of the threaded pin 62, it will push the connecting rod 65 and the piston 66 connected to the connecting rod 65 to move. The movement of the piston 66 will push the hydraulic oil in the injection pipe 64 into the pressing cavity 68 through the oil guide groove 67. Under the powerful pressure of the hydraulic oil, the hydraulic oil in the pressing cavity 68 will drive the abutting block 611 to move through the pressing force receiving plate 69 until the abutting block 611 tightly abuts against the outer wall of the hinge shaft 52. Through such an operation, the auxiliary fixing operation of the position of the hinge shaft 52 can be successfully completed. Among them, when the force receiving plate 69 moves under the powerful pressure of the hydraulic oil, it will generate a pulling force on the retraction spring 610, causing the retraction spring 610 to elongate and store elastic potential energy. When the staff needs to adjust the inclination angle of the tooling inclined plate 2 again, first, it is necessary to stop the auxiliary fixing operation of the hinge shaft 52. At this time, the staff only needs to reverse the threaded pin 62. The reverse rotation of the threaded pin 62 will drive the connecting rod 65 and the piston 66 to rotate synchronously. Under the rotation action of the piston 66, in cooperation with the oil guide groove 67, the hydraulic oil in the pressing cavity 68 is pumped into the injection pipe 64. As the hydraulic oil in the pressing cavity 68 decreases, the force receiving plate 69 that loses the action of the hydraulic oil pressure will be affected by the elastic force of the elastic potential energy stored in the retraction spring 610 before, so it will move in the reverse direction and drive the abutting block 611 away from the hinge shaft 52. Thus, the auxiliary fixing operation of the hinge shaft 52 is successfully stopped. Performing an auxiliary fixing treatment on the hinge shaft 52 can significantly improve the stability of the inclination angle position of the tooling inclined plate 2, effectively ensuring that during various processing operations, it will not cause deviations in the inclination due to problems such as insecure angle fixation, thereby affecting the quality and precision of the processed products.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Portable inclined hole drilling tooling, comprising a tooling base (1), a tooling inclined plate (2) and a magnetic block (4), characterized in that: At the top of the tooling base (1), there is a tooling inclined plate (2). At the front ends on both sides of the tooling base (1) and the tooling inclined plate (2), there are inclined fixing components. At the bottom of the tooling base (1), a magnetic block (4) is fixed. At both sides of the rear end of the tooling inclined plate (2), connection blocks one (5) are fixed. At both sides of the rear end of the tooling base (1), connection blocks two (6) are fixed. The connection block two (6) is located on one side of the connection block one (5). On the side of the connection block two (6) facing the connection block one (5), there is a connection component; The inclined fixing component includes lead screws (31) arranged at the front ends on both sides of the tooling base (1) and the tooling inclined plate (2). At the upper and lower ends of the lead screw (31), there are nuts one (34) threadedly connected. At the front ends of the inner sides of both sides of the tooling base (1) and the tooling inclined plate (2), there are connection grooves (3). At the front ends of the side walls of both sides of the tooling base (1) and the tooling inclined plate (2), there are connection holes (33). The connection holes (33) are connected to the inside of the connection grooves (3). On the outside of each lead screw (31), there are two connection sleeves (32) sleeved. The connection sleeves (32) are respectively located on one side of the connection holes (33). Inside the connection holes (33), there is a connection pin (35) rotatably arranged. The connection pin (35) is fixed to one side of the connection sleeve (32). Inside the connection groove (3), there is a nut two (36). The nut two (36) is threadedly connected to the end of the connection pin (35) and abuts against the inner side wall of the connection groove (3); The connection component includes a hinge groove (51) opened on one side of the connection block two (6). The hinge groove (51) faces the connection block one (5). On both sides inside the hinge groove (51), there are outer sleeve rings (53) fixed. Inside the outer sleeve rings (53), there is a hinge shaft (52) rotatably arranged. The hinge shaft (52) is fixed to one side of the connection block one (5). On both sides outside the hinge shaft (52), there are rotating rings (54) fixed. The rotating rings (54) are rotatably arranged inside the outer sleeve rings (53). At the middle position on the other side of the hinge shaft (52), there is an extension shaft (55) fixed. The extension shaft (55) is rotatably arranged inside the connection block two (6). The extension shaft (55) protrudes from the other side of the connection block two (6) and is fixed with an external disk (56). On the top of the external disk (56), there is a pointer (57). Above the pointer (57), there is an arc scale (58). The arc scale (58) is fixed to the outer side wall of the connection block two (6). Between the external disk (56) and the connection block two (6), there is a pre-fixing component; The pre-fixing component includes external slots (59) opened at equal intervals on the outer side wall of the connection block two (6). The external slots (59) are located below the pointer (57). Inside the external slots (59), there are sleeves (591) fixed. Inside the sleeves (591), there are return springs (592) fixed. At the end of the return spring (592), there is a clamping block (593) fixed. The clamping block (593) protrudes from the front end of the sleeve (591) and is clamped into a clamping slot (594). The clamping slot (594) is opened on the outer side wall of the external disk (56) facing the connection block two (6).

2. The portable inclined hole drilling tooling according to claim 1, characterized in that: A pushing cavity (68) is provided on the outer periphery at the middle position inside the hinge groove (51). A stress plate (69) is arranged inside the pushing cavity (68). A resisting block (611) is fixed to the end of the stress plate (69) facing the hinge shaft (52). The resisting block (611) is placed inside the hinge groove (51) and is in tight contact with the outer side wall of the hinge shaft (52). A retraction spring (610) is fixed to the other end of the stress plate (69). A thread groove (61) is provided on the outer periphery of the extension shaft (55). The thread groove (61) is opened inside the second connecting block (6). A thread pin (62) is in threaded connection inside the thread groove (61). An internal groove (63) is opened at the end of the thread groove (61) facing the pushing cavity (68). A pushing pipe (64) is embedded inside the internal groove (63). A piston (66) is arranged inside the pushing pipe (64). A connecting rod (65) is fixed between the piston (66) and the thread pin (62). An oil guiding groove (67) is opened at the end of the internal groove (63) facing the pushing cavity (68). The oil guiding groove (67) is communicated with the inside of the pushing cavity (68).

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