Pallet nut pneumatic drill

Abstract

The utility model discloses a pallet nut pneumatic drill, which belongs to the technical field of pneumatic drills and comprises a handle, a rear cover and a front cover are respectively mounted at two ends of the upper section of the handle, an engine and a piston module are arranged in the upper section of the handle, one end of the piston module penetrates through the front cover and is provided with a positioning component, and the other end of the piston module is provided with a nut. A speed reduction adjusting assembly is arranged between the output end of the engine and the rear cover, two main shafts are movably installed on the top of the upper section of the handle, one end of each main shaft is connected with the speed reduction adjusting assembly, the double-main-shaft synchronous machining and automatic feeding functions are achieved, machining of two supporting plate nut assembling rivet holes can be completed through one-time positioning, and the machining efficiency is improved. Meanwhile, dimpling is completed, the dimpling depth can be adjusted according to different requirements, the whole operation is more convenient and faster, and the machining efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air drills, and more particularly to an air drill for supporting plate nuts. Background Art

[0002] The pallet nut is a fastener used to connect mechanical equipment and is widely used in mechanical manufacturing. During the installation process of the pallet nut, it is first necessary to use a pallet nut air drill to process the assembly hole of the workpiece.

[0003] At present, the processing method of rivet holes for mounting support plate nuts is usually to manually process two support plate nuts using a support plate nut pneumatic drill jig. During this process, a small hole needs to be processed first, and then the jig is turned over to process another small hole. If there is a countersinking requirement, after the hole processing is completed, the hole is countersunk with a countersink drill to complete the processing of the rivet holes for mounting the support plate nuts. Although this method can basically meet the needs of hole making, the steps are cumbersome and the efficiency is low. Therefore, in view of this, research and improvement are carried out on the existing structure, and a support plate nut pneumatic drill is provided to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the utility model is to provide a support plate nut pneumatic drill, which has dual-spindle synchronous processing and automatic feeding functions, can complete the processing of two support plate nut assembly rivet holes in one positioning, and complete the countersinking at the same time, and can adjust the countersinking depth according to different needs, making the entire operation more convenient and quick, greatly improving the processing efficiency.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] A support plate nut pneumatic drill, comprising a handle, with a rear cover and a front cover respectively installed at both ends of the upper section of the handle, an engine and a piston module disposed inside the upper section of the handle, one end of the piston module passing through the front cover and provided with a positioning assembly, a deceleration adjustment assembly disposed between the output end of the engine and the rear cover, two main shafts movably mounted on the top of the upper section of the handle, one end of the main shaft being connected to the deceleration adjustment assembly, a control assembly and an air pressure valve disposed in sequence from top to bottom inside the lower section of the handle, and an air nozzle disposed at the bottom end of the lower section of the handle;

[0009] The piston module includes a cylinder and a sleeve. The cylinder is installed inside the upper section of the handle. The sleeve is slidably connected to the inner side of the front cover, and one end passes through the sleeve. The outer periphery of the piston rod on the cylinder is slidably connected to the inner wall of the sleeve.

[0010] The positioning assembly includes a connecting block and a drilling template. The connecting block is fixed to the end of the cylinder piston rod, and the drilling template is fixed to the outer periphery of the extended end of the sleeve. The top side of the connecting block is fixedly connected to the expansion shaft. The expansion sleeve is installed on the drilling template. One end of the expansion shaft passes through one end of the expansion sleeve to the other end.

[0011] The deceleration adjustment assembly includes a center wheel mounted on the engine output shaft and an output gear fixed to the outer periphery of one end of the main shaft. The center wheel and the corresponding output gear are connected through a plurality of transmission gears.

[0012] Furthermore, a limiting hole is provided at the top of one end of the shaft sleeve, and the top end of the connecting block passes through the shaft sleeve through the limiting hole.

[0013] Furthermore, the main shaft includes a rear rod and a front rod, an elastic shaft is installed between the rear rod and the front rod, and the output gear is fixed to the outer periphery of the rear rod.

[0014] Furthermore, a mounting sleeve is integrally formed on the side of the rear cover away from the handle, a toothed dividing plate is installed at one end of the mounting sleeve, two toothed knobs are meshedly connected to the toothed dividing plate, a connecting sleeve is fixed to the end of the toothed knob close to the rear rod, and one end of the connecting sleeve is rotatably connected to the rear rod through a bearing, and the outer periphery of the connecting sleeve is threadedly connected to the inner wall of the mounting sleeve.

[0015] Furthermore, a center block is fixedly connected to the top position of the upper section of the handle close to one end of the rear cover, and the center block is sleeved on the outer periphery of one end of the rear rod.

[0016] Furthermore, the control component includes a push rod installed on the lower section of the handle and a pressure rod rotated with the inside of the lower section of the handle through a pin shaft. One end of the push rod extends to the outside of the lower section of the handle and is fixedly connected to a button. The other end of the push rod extends to the inside of the lower section of the handle and is rotationally connected to the pressure rod through a pin shaft. The bottom of the pressure rod is in contact with the valve stem on the air pressure valve.

[0017] Furthermore, a plurality of air paths are provided inside the upper section of the handle, and the engine and the cylinder are connected to the interior of the lower section of the handle through the corresponding air paths.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] (1) This solution, through the arrangement of the piston module, positioning assembly and deceleration adjustment assembly, has the function of dual-spindle synchronous processing and automatic feeding, and can complete the processing of two support plate nut assembly rivet holes at one time, and complete the countersinking at the same time, and the countersinking depth can be adjusted according to different needs, making the entire operation more convenient and quick, and greatly improving the processing efficiency.

[0021] (2) This solution uses modular design, and each functional module has the same interface, making it highly versatile and interchangeable. Different support plate nut drills have the same repair content and maintenance procedures. At the same time, the ergonomic design makes it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall internal structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the piston module and positioning assembly of the present invention;

[0024] Figure 3 This is a side view of the handle structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of the back cover of the present utility model;

[0026] Figure 5 This is a schematic diagram of the internal structure of the lower section of the rear cover of the present invention;

[0027] Figure 6 This is a schematic diagram of the internal structure of the upper section of the back cover of the present invention;

[0028] Figure 7 This is a schematic diagram of the main shaft position structure of the utility model.

[0029] Description of the numbers in the figure:

[0030] 1. Handle;

[0031] 2. Back cover; 201. Installation sleeve;

[0032] 3. Front cover;

[0033] 4. Engine;

[0034] 5. Piston module; 501. Cylinder; 502. Bushing;

[0035] 6. Positioning assembly; 601. Connecting block; 602. Drill template; 603. Expansion shaft; 604. Expansion sleeve;

[0036] 7. Speed ​​reduction adjustment assembly; 701. Center wheel; 702. Output gear; 703. Transmission gear;

[0037] 8. Main shaft; 801. Rear rod; 802. Front rod; 803. Elastic shaft;

[0038] 9. Control assembly; 901. Push rod; 902. Press rod; 903. Button;

[0039] 10. Air pressure valve;

[0040] 11. Wind nozzle;

[0041] 12. Toothed indexing plate;

[0042] 13. Toothed knob;

[0043] 14. Connecting sleeve;

[0044] 15. Center block. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0046] Example:

[0047] See also Figure 1-7 A support plate nut pneumatic drill comprises a handle 1, with a rear cover 2 and a front cover 3 installed at both ends of the upper section of the handle 1 respectively; an engine 4 and a piston module 5 are arranged inside the upper section of the handle 1, one end of the piston module 5 passes through the front cover 3 and is provided with a positioning component 6, a deceleration adjustment component 7 is provided between the output end of the engine 4 and the rear cover 2, two main shafts 8 are movably installed on the top of the upper section of the handle 1, and one end of the main shaft 8 is connected to the deceleration adjustment component 7, a control component 9 and an air pressure valve 10 are arranged in sequence inside the lower section of the handle 1 from top to bottom, and an air nozzle 11 is installed at the bottom end of the lower section of the handle 1;

[0048] The piston module 5 includes a cylinder 501 and a sleeve 502. The cylinder 501 is installed inside the upper section of the handle 1. The sleeve 502 is slidably connected to the inner side of the front cover 3, and one end passes through the sleeve 502. The outer periphery of the piston rod on the cylinder 501 is slidably connected to the inner wall of the sleeve 502.

[0049] The positioning assembly 6 includes a connecting block 601 and a drilling template 602. The connecting block 601 is fixed to the end of the piston rod of the cylinder 501. The drilling template 602 is fixed to the outer periphery of the extended end of the sleeve 502. The top side of the connecting block 601 is fixedly connected to the expansion shaft 603. The expansion sleeve 604 is installed on the drilling template 602. One end of the expansion shaft 603 passes through one end of the expansion sleeve 604 to the other end.

[0050] The deceleration adjustment assembly 7 includes a center wheel 701 mounted on the output shaft of the engine 4 and an output gear 702 fixed to the outer periphery of one end of the main shaft 8. The center wheel 701 and the corresponding output gear 702 are connected to each other through a plurality of transmission gears 703.

[0051] See Figure 2 A limiting hole is provided at the top of one end of the sleeve 502, and the top end of the connecting block 601 passes through the sleeve 502 through the limiting hole.

[0052] See Figure 6 and Figure 7 The main shaft 8 includes a rear rod 801 and a front rod 802, and an elastic shaft 803 is installed between the rear rod 801 and the front rod 802. The output gear 702 is fixed to the outer periphery of the rear rod 801. When in use, the elastic shaft 803 is an elastic steel wire soft shaft, and the center distance between the output gears 702 is 19mm. The spacing between the two holes of the center block 15 is 16mm. The center distance can be changed through the elastic shaft 803. While ensuring the flexibility of the elastic steel wire soft shaft, the reliability of its torque transmission must also be guaranteed. If the center distance parameters of the rivet holes of the support plate nut change, only the corresponding center block 15 and the drilling template 602 need to be changed; if the positioning hole parameters of the support plate nut change, only the corresponding expansion shaft 603 and the expansion sleeve 604 need to be changed to meet the user's processing needs.

[0053] See Figure 5 and Figure 6, the side of the rear cover 2 away from the handle 1 is integrally formed with a mounting sleeve 201, one end of the mounting sleeve 201 is mounted with a toothed indexing plate 12, the toothed indexing plate 12 is meshed with two toothed knobs 13, the toothed knob 13 is fixed with a connecting sleeve 14 at one end close to the rear rod 801, and one end of the connecting sleeve 14 is rotatably connected to the rear rod 801 through a bearing, the outer periphery of the connecting sleeve 14 is threadedly connected to the inner side wall of the mounting sleeve 201, the tail end of the connecting sleeve 14 is an outer hexagon, the inside of the toothed knob 13 is an inner hexagonal hole, through the hexagonal block and the spring Spring, the two are relatively fixed. When adjusting the countersink depth, overcome the spring tension and pull the toothed knob 13 to the left, so that the outer teeth of the toothed knob 13 are disengaged from the toothed indexing plate 12. If the countersink depth is insufficient, rotate the toothed knob 13 clockwise. Under the connection of the hexagonal block, the connecting sleeve 14 is transmitted to the right. The pitch of the connecting sleeve 14 is 0.52mm, and the toothed indexing plate 12 has a total of 26 teeth, so each tooth will adjust the countersink depth by 0.02mm. According to the countersink depth of the test piece, the corresponding number of teeth can be adjusted to meet user needs.

[0054] See Figure 3 A center block 15 is fixedly connected to the top position of the upper section of the handle 1 near one end of the rear cover 2, and the center block 15 is sleeved on the outer periphery of one end of the rear rod 801.

[0055] See Figure 1 The control component 9 includes a push rod 901 installed on the lower section of the handle 1 and a pressure rod 902 that is rotated with the inside of the lower section of the handle 1 through a pin shaft. One end of the push rod 901 extends to the outside of the lower section of the handle 1 and is fixedly connected to a button 903. The other end of the push rod 901 extends to the inside of the lower section of the handle 1 and is rotatably connected to the pressure rod 902 through a pin shaft. The bottom of the pressure rod 902 is in contact with the valve stem on the air pressure valve 10.

[0056] See Figure 1 A plurality of gas paths are provided inside the upper section of the handle 1, and the engine 4 and the cylinder 501 are connected to the lower section of the handle 1 through corresponding gas paths.

[0057] When in use: the air connection nozzle 11 is connected to the air source, and after pressing the button 903, the button 903 pushes the pressure rod 902 in cooperation with the push rod 901, and the pressure rod 902 pushes the valve stem of the air pressure valve 10 downward, and the air pressure valve 10 opens. The interior of the lower section of the handle 1 is connected to the various air paths set in the interior of the upper section of the handle 1, and a part of the compressed air is supplied to the engine 4 through the air path, and the engine 4 works; the other part of the compressed air is supplied to the piston module through the air path. After the compressed air enters the cylinder 501, it pushes the piston The shaft overcomes the spring and moves leftward. Because the piston shaft 501, connecting block 601, and expansion shaft 603 are all threadedly connected, expansion shaft 603 moves leftward, expanding expansion sleeve 604 and tightening the tool in the workpiece's locating hole. The workpiece and drilling template 602 are now relatively fixed. When connecting block 601 moves leftward until it contacts sleeve 502, cylinder 501 is still receiving air, causing handle 1 to move rightward. The drill bit mounted on front rod 802 contacts the workpiece, drilling and countersinking the hole. Releasing button 903 resets the valve stem of air pressure valve 10, closing it. Engine 4 stops, and the spring overcomes atmospheric pressure, pushing the piston shaft rightward. Expansion shaft 603 disengages expansion sleeve 604 to the right, allowing the support plate nut drill to detach from the workpiece. This convenient and efficient operation significantly improves machining efficiency.

[0058] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0059] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0060] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A support plate nut pneumatic drill, comprising a handle (1), characterized in that: The two ends of the upper section of the handle (1) are respectively installed with a rear cover (2) and a front cover (3); the upper section of the handle (1) is provided with an engine (4) and a piston module (5); one end of the piston module (5) passes through the front cover (3) and is provided with a positioning assembly (6); a deceleration adjustment assembly (7) is provided between the output end of the engine (4) and the rear cover (2); two main shafts (8) are movably installed at the top of the upper section of the handle (1), and one end of the main shaft (8) is connected to the deceleration adjustment assembly (7); the lower section of the handle (1) is provided with a control assembly (9) and an air pressure valve (10) in sequence from top to bottom; and the bottom end of the lower section of the handle (1) is provided with an air nozzle (11); The piston module (5) comprises a cylinder (501) and a sleeve (502), wherein the cylinder (501) is mounted inside the upper section of the handle (1), the sleeve (502) is slidably connected to the inner side of the front cover (3), and one end thereof passes through the sleeve (502), and the outer periphery of the piston rod on the cylinder (501) is slidably connected to the inner wall of the sleeve (502); The positioning assembly (6) includes a connecting block (601) and a drilling template (602), wherein the connecting block (601) is fixed to the end of the piston rod of the cylinder (501), and the drilling template (602) is fixed to the outer periphery of the extended end of the shaft sleeve (502). The top side of the connecting block (601) is fixedly connected to a tightening shaft (603), and a tightening sleeve (604) is installed on the drilling template (602), and one end of the tightening shaft (603) passes through one end of the tightening sleeve (604) to the other end; The deceleration adjustment assembly (7) comprises a central wheel (701) mounted on the output shaft of the engine (4) and an output gear (702) fixed to the outer periphery of one end of the main shaft (8), wherein the central wheel (701) and the corresponding output gear (702) are connected in transmission via a plurality of transmission gears (703).

2. The support plate nut pneumatic drill according to claim 1, characterized in that: A limiting hole is provided at the top of one end of the shaft sleeve (502), and the top end of the connecting block (601) passes through the limiting hole and penetrates the shaft sleeve (502).

3. The support plate nut pneumatic drill according to claim 1, characterized in that: The main shaft (8) comprises a rear rod (801) and a front rod (802), an elastic shaft (803) is installed between the rear rod (801) and the front rod (802), and the output gear (702) is fixed to the outer periphery of the rear rod (801).

4. The support plate nut pneumatic drill according to claim 1, characterized in that: A mounting sleeve (201) is integrally formed on a side of the rear cover (2) away from the handle (1), a toothed indexing plate (12) is mounted on one end of the mounting sleeve (201), two toothed knobs (13) are meshedly connected to the toothed indexing plate (12), a connecting sleeve (14) is fixedly engaged with one end of the toothed knob (13) close to the rear rod (801), and one end of the connecting sleeve (14) is rotatably connected to the rear rod (801) via a bearing, and the outer periphery of the connecting sleeve (14) is threadedly connected to the inner side wall of the mounting sleeve (201).

5. The support plate nut pneumatic drill according to claim 1, characterized in that: A center block (15) is fixedly connected to the top position of the upper section of the handle (1) near one end of the rear cover (2), and the center block (15) is sleeved on the outer periphery of one end of the rear rod (801).

6. The support plate nut pneumatic drill according to claim 1, characterized in that: The control assembly (9) comprises a push rod (901) mounted on the lower section of the handle (1) and a pressure rod (902) connected to the interior of the lower section of the handle (1) by rotation via a pin shaft. One end of the push rod (901) extends to the exterior of the lower section of the handle (1) and is fixedly connected to a button (903). The other end of the push rod (901) extends to the interior of the lower section of the handle (1) and is rotationally connected to the pressure rod (902) via a pin shaft. The bottom of the pressure rod (902) is in contact with the valve stem of the air pressure valve (10).

7. The support plate nut pneumatic drill according to claim 1, characterized in that: A plurality of air paths are provided inside the upper section of the handle (1), and the engine (4) and the cylinder (501) are connected to the interior of the lower section of the handle (1) through corresponding air paths.

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