Multi-shaft tapping device

Abstract

The utility model belongs to the technical field of tapping equipment, and provides a multi-shaft tapping device which comprises a locking hoop and a bolt assembly used in cooperation with the locking hoop, a screw tap driving unit and a connecting plate are arranged on the locking hoop, and the two ends of the connecting plate are connected with the locking hoop and the screw tap driving unit respectively. According to the utility model, the locking hoop is connected with the screw tap driving unit, so that the machining stability is improved, and the locking hoop is detachably connected with the bench drill; the head sleeve, the bearing seat plate and the baffle are connected through the bolts, disassembly and maintenance are facilitated, in order to further improve the working stability, an auxiliary mechanism is additionally arranged, and the problems that in the prior art, when tapping equipment is used for machining screw holes, the stability is poor, a screw tap is prone to being damaged, or the tapping quality is affected are solved. And in addition, the device is reasonable in design, relatively high in practicability and suitable for large-scale popularization.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tapping equipment technical field relates to table utensil processing especially, relates to a kind of multi-axis tapping device. BACKGROUND

[0002] Tapping is a kind of mechanical processing means, for making hole and processing thread structure on the surface of part. Learning desk is the desk designed for school-age personnel, in order to adapt to personnel of different ages, configure height adjustment function, in order to adapt to the different purposes (handwork, read, write, draw etc.) of school-age personnel, configure the movable table board that can adjust inclination angle, in order to facilitate transportation, bolt is used between table leg and table frame, and screw hole is formed in corresponding position on table frame.

[0003] But the tapping equipment in prior art when machining screw hole, either is not good stability, easy to cause tap damage, or affect tapping quality;Or can guarantee stability, but cannot be disassembled, leading to single function. INVENTION CONTENTS

[0004] The utility model discloses in view of the technical problem of above-mentioned tapping tool, propose a kind of multi-axis tapping device with reasonable design, simple structure, detachable, better stability and higher utilization.

[0005] In order to achieve the above purpose, the utility model discloses a kind of multi-axis tapping device, including locking hoop and bolt assembly used in conjunction therewith, the locking hoop is provided with tap driving unit, at least two connecting plates are provided between the locking hoop and tap driving unit, the two ends of the connecting plate are connected with the locking hoop and tap driving unit respectively.

[0006] As preferred, the tap driving unit includes a driving shaft, the driving shaft is coaxially connected with the main shaft of the drill head, the driving shaft is externally fitted with a head cover, the driving shaft is provided with a driving gear, the driving end of the driving gear is provided with at least two driven gears engaged therewith, the driven gears are provided with a driven shaft, the driven shaft is provided with a tap clamp.

[0007] As preferred, the head cover is connected with the connecting plate, the outer diameter of the head cover is not equal to the outer diameter of the locking hoop, and the part of the head cover connected with the connecting plate is a bevel.

[0008] As preferred, the head cover is internally provided with a bearing seat plate, the bearing seat plate is provided with mounting holes at positions corresponding to the driving shaft and the driven shaft, and bearings are arranged in the mounting holes.

[0009] As preferred, the side of the head cover is provided with a plurality of connecting holes corresponding to the bearing seat plate and threaded with bolts, and the bearing seat plate is provided with screw holes matched with the bolts.

[0010] As preferred, the top of the bearing seat plate is provided with a baffle connected with the bearing seat plate through bolts, and the baffle is provided with through holes at positions corresponding to the driving shaft and the driven shaft, and the inner diameter of the through holes is smaller than the outer diameter of the bearing.

[0011] As preferred, the head cover is connected with the bench drill head and the head cover through an auxiliary mechanism.

[0012] As preferred, the auxiliary mechanism comprises an optical axis, a linear bearing coaxially and slidingly installed on the optical axis, and a fixing seat provided on the linear bearing and detachably connected with the bench drill head through bolts.

[0013] As preferred, the adjacent driven gears are arranged along the axis of the driving gear.

[0014] As preferred, the head cover is provided with an oil injection hole at a position corresponding to the driven gear.

[0015] Compared with the prior art, the advantages and positive effects of the utility model lie in that:

[0016] 1. The multi-shaft tapping device provided by the utility model is connected with the tap drive unit through the locking clamp, the stability during machining is improved, and the detachable connection with the bench drill is also realized, the locking clamp and the tap drive unit are connected through the at least two connecting plates, the convenience of the detachable connection between the locking clamp and the boss is facilitated while the stability is ensured, the head cover, the bearing seat plate and the baffle are connected through bolts, the disassembly and maintenance are facilitated, the auxiliary mechanism is additionally arranged to further improve the stability, the utility model solves the problems in the prior art that the tapping equipment in the prior art either has poor stability and is prone to tap damage or affects the tapping quality when machining the screw hole, or can ensure the stability but cannot be disassembled, resulting in the problem of single function. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be simply introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to the drawings without creating creative labor.

[0018] Figure 1A working diagram of a multi-axis tapping device provided for the embodiment is installed on a table drill head;

[0019] Figure 2 A partial sectional view of a multi-axis tapping device provided for the embodiment;

[0020] Figure 3 For Figure 2 An enlarged schematic view at A in the middle;

[0021] Figure 4 A transmission schematic view of the inside of a tap driving unit provided for the embodiment;

[0022] Figure 5 A transmission schematic view of the inside of a tap driving unit provided for the embodiment in another direction;

[0023] In the above figures: 1-table drill head; 2- boss; 3- locking hoop; 4- connecting plate; 5- head cover; 6- connecting hole; 7- oil injection hole; 8- baffle; 9- tap clamp; 10- driving shaft; 11- fixed seat; 12- linear bearing; 13- optical axis; 14- bearing seat plate; 15- driving gear; 16- driven gear; 17- driven shaft; 18- bearing. DETAILED DESCRIPTION

[0024] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be further described below with reference to the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. For the convenience of description, the following text will appear "up", "down", "left", "right" words, only indicate the same with the upper, lower, left, right direction of the drawing itself, and do not limit the structure.

[0025] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be implemented in other ways different from the description herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0026] Embodiments, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, this utility model provides a multi-axis tapping device, which is installed on a bench drill head 1. The utility model includes a locking clamp 3 and a bolt assembly used in conjunction with it. A tap drive unit is provided on the locking clamp 3. At least two connecting plates 4 are provided between the locking clamp 3 and the tap drive unit. The two ends of the connecting plates 4 are connected to the locking clamp 3 and the tap drive unit, respectively. The tap drive unit includes a power input end and a power output end. Its power input end is used to connect to the bench drill and obtain transmission power from it. Its power output end is used to install the tap, allowing the bench drill to synchronously drive multiple taps for tapping operations. The bolt assembly includes a screw and a nut. The screw is inserted into the hole structure of the locking clamp 3. The clamping opening of the locking clamp 3 can be adjusted by adjusting the position of the nut on the screw. The bench drill head 1 has a boss 2 that works in conjunction with the locking clamp 3. The clamping port of the locking clamp 3 is nested with the boss 2. The actual clamping diameter of the locking clamp 3 can be adjusted by bolt assembly until the locking clamp 3 is locked on the boss 2, thus fixing the device to the bench drill head 1, thereby improving the stability of tapping operations.

[0027] To improve the tapping performance of this device, the tap drive unit provided by this invention includes a drive shaft 10, which is coaxially connected to the spindle of the bench drill head 1. A head sleeve 5 is fitted over the drive shaft 10. A drive gear 15 is mounted on the drive shaft 10, and at least two driven gears 16 mesh with it at the transmission end of the drive gear 15. A driven shaft 17 is mounted on the driven gear 16, located between the head sleeve 5 and the drive shaft 10. A tap clamp 9 is mounted on the driven shaft 17 to facilitate tap clamping. Rotation of the driven shaft 17 drives the tap clamp 9 to rotate, thereby driving the tap to rotate. The drive shaft 10, driven shaft 17, drive gear 15, and driven gears 16 constitute the transmission components from the bench drill spindle to the tap clamp 9. The head sleeve 5 forms the transmission integration base of the transmission components, providing a support node for the shaft end of the transmission components. In this way, the power can be transmitted sequentially to the drive shaft 10, drive gear 15, driven gear 16, driven shaft 17, tap chuck 9 and tap through the bench drill. The power transmission path is stable and reliable, which helps to ensure the stability and quality of simultaneous tapping by multiple taps.

[0028] To improve the structural stability of this device, the headgear 5 provided by this utility model is connected to the connecting plate 4. The headgear 5 has a cylindrical structure, and the outer diameter of the headgear 5 is not equal to the outer diameter of the locking clamp 3, so as to facilitate the concealed installation of the locking clamp 3 within the frame range built by the connecting plate 4. At the same time, the part where the headgear 5 is connected to the connecting plate 4 is an inclined surface. With the inclined surface as the supporting foundation, the frame system formed is conical. This not only facilitates the connection between the headgear 5 and the locking clamp 3, but also improves the stability of the device.

[0029] In order to improve the tapping quality, the utility model discloses bearing seat plate 14 is arranged in the inside of head cover 5, bearing seat plate 14 is all seted up with mounting hole in the position corresponding with driving shaft 10 and driven shaft 17, and bearing 18 is arranged in the mounting hole. Among them, the bearing corresponding with driving shaft 10 and driven shaft 17 can reduce the rotation resistance of driving shaft 10 and driven shaft 17, improve the rotation fluency and balance of driving shaft 10 and driven shaft 17, reduce the probability of appearing radial runout, to improve the performance of tap tapping and the quality of tapping product.

[0030] In order to conveniently dismount and install bearing seat plate 14, the utility model discloses a plurality of connecting holes 6 are set up in the side of head cover 5, connecting hole 6 is corresponding with bearing seat plate 14 and is set up with bolt, and bearing seat plate 14 is seted up with the screw hole of cooperation and connection with bolt. The bolt of this position connects head cover 5 and bearing seat plate 14 from the radial position, does not interfere with other structure holes on bearing seat plate 14, effectively realizes bearing seat plate 14 with head cover 5 is connected and fixed, provides the corresponding stable rotation axis for driving shaft 10 and driven shaft 17, and also is convenient for dismounting and maintaining.

[0031] Further, the utility model discloses the top of bearing seat plate 14 is provided with baffle 8, baffle 8 is connected with bearing seat plate 14 through bolt, baffle 8 is all seted up with through -hole in the position corresponding with driving shaft 10 and driven shaft 17, and the inner diameter of through -hole is less than the outer diameter of bearing. In this way, on the basis of providing bearing assembly space, utilize baffle 8 to play the role of axial positioning, can prevent the obvious axial displacement of bearing.

[0032] In order to improve the cooperation performance of the device and bench drill, the head cover 5 provided by the utility model is connected with the bench drill head 1 and the head cover 5 through an auxiliary mechanism, and the auxiliary mechanism can further enhance the working stability of the device.

[0033] Specifically, the auxiliary mechanism provided by the utility model includes an optical shaft 13, a linear bearing 12 is coaxially and slidingly installed on the optical shaft 13, a fixing seat 11 is arranged on the linear bearing 12, one side of the fixing seat 11 facing the bench drill head 1 is in a C-shaped structure, the inner wall of the C-shaped structure is used to clamp the side surface of the bench drill head 1, and the two sides of the C-shaped surface of the fixing seat 11 are detachably connected with the bench drill head 1 through bolts. Further, the bottom of the optical shaft 13 is provided with a bottom plate, and the bottom plate is connected with the head cover 5. In this way, during the driving of the bench drill spindle, the relative position of the fixing seat and the bench drill head remains unchanged, and the head cover 5, the bottom plate, and the optical shaft 13 can complete lifting along the cooperation direction of the optical shaft 13 and the linear bearing 12, thereby meeting the requirements of the tapping feeding action.

[0034] From the spatial overall arrangement of the tap, the adjacent driven gears 16 in the utility model are arranged staggered along the axis of the driving gear 15, which can provide a larger tap arrangement space.

[0035] Considering the lubrication requirement of the transmission components inside the head cover 5, the head cover 5 is provided with an oil injection hole 7 at a position corresponding to the driven gear 16, through which the transmission surface of the driven gear 16 can be conveniently greased, and the driving gear will also be coated with grease during the continuous transmission with the driven gear 16, thereby ensuring the transmission performance of the driving gear 15 and the transmission gear, and prolonging the actual service life of the transmission components inside the head cover 5 to a certain extent.

[0036] The utility model discloses a locking hoop 3 and tap drive unit connection are set up through at least two connecting plates 4 and connect locking hoop 3 and tap drive unit, guarantee the stability while also facilitate locking hoop 3 and the convenience of detachable connection of boss 2, adopt the bolt and connect head cover 5, bearing seat plate 14, baffle 8, facilitate dismounting maintenance, in order to further improve the stability of work, additionally set up auxiliary mechanism, and the device solves the tapping equipment in the prior art when processing screw hole, either is bad stability, and easy to lead to tap damage, or influence tapping quality, either can guarantee stability, but cannot detach, lead to the problem of function speciality.

[0037] The above is only the preferred embodiment of the utility model, and is not other forms of the utility model, and any skilled person in the art can change or modify the equivalent embodiment of equivalent change by using the disclosed technical content to be applied to other fields, but any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model still belongs to the protection scope of the utility model technical scheme without departing from the utility model technical scheme content.

Claims

1. A multi-axis tapping device, characterized in that, It includes a locking clamp and a bolt assembly used in conjunction with it. The locking clamp is provided with a tap driving unit. At least two connecting plates are provided between the locking clamp and the tap driving unit. The two ends of the connecting plates are respectively connected to the locking clamp and the tap driving unit.

2. The multi-axis tapping device according to claim 1, characterized in that, The tap drive unit includes a drive shaft, which is coaxially connected to the spindle of the bench drill head. A head sleeve is fitted on the outside of the drive shaft. A drive gear is provided on the drive shaft. At least two driven gears meshing with the drive gear are provided on the transmission end of the drive gear. A driven shaft is provided on the driven gear, and a tap clamp is provided on the driven shaft.

3. The multi-axis tapping device according to claim 2, characterized in that, The headgear is connected to the connecting plate. The outer diameter of the headgear is not equal to the outer diameter of the locking clamp. The part where the headgear is connected to the connecting plate is an inclined surface.

4. A multi-axis tapping device according to claim 3, characterized in that, The headgear has a bearing seat plate inside, and the bearing seat plate has mounting holes at positions corresponding to the drive shaft and the driven shaft, and bearings are installed in the mounting holes.

5. A multi-axis tapping device according to claim 4, characterized in that, The headgear has multiple connecting holes on its side, which correspond to the bearing seat plate and are fitted with bolts. The bearing seat plate has threaded holes that are connected to the bolts.

6. A multi-axis tapping device according to claim 5, characterized in that, A baffle is provided on the top of the bearing seat plate. The baffle is connected to the bearing seat plate by bolts. The baffle has through holes at positions corresponding to the drive shaft and the driven shaft. The inner diameter of the through holes is smaller than the outer diameter of the bearing.

7. A multi-axis tapping device according to any one of claims 2 to 6, characterized in that, The headgear is connected to the drill bit head via an auxiliary mechanism.

8. A multi-axis tapping device according to claim 7, characterized in that, The auxiliary mechanism includes an optical axis, on which a linear bearing is slidably mounted coaxially. A fixed seat is provided on the linear bearing, and the fixed seat is detachably connected to the bench drill head by bolts.

9. A multi-axis tapping device according to claim 8, characterized in that, The adjacent driven gears are staggered along the axis of the driving gear.

10. A multi-axis tapping device according to claim 9, characterized in that, The headgear has an oil injection hole at the position corresponding to the driven gear.

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