CN218855797U

CN218855797U - Automatic tapping machine convenient for replacing drill bit

Info

Publication number: CN218855797U
Application number: CN202320049454.2U
Authority: CN
Inventors: 蔡从辉; 张如; 黄玉玲
Original assignee: Zhejiang Xianhui Machinery Co ltd
Current assignee: Zhejiang Xianhui Machinery Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-04-14
Anticipated expiration: 2033-01-06

Abstract

The utility model relates to a conveniently change automatic tapping machine of drill bit belongs to tapping machine technical field, and it includes tapping machine body, spliced pole and elasticity centre gripping subassembly, set up on the spliced pole and supply screw tap drill bit male inserting groove, elasticity centre gripping subassembly slide set up in on the spliced pole and to lieing in screw tap drill bit in the inserting groove carries out the centre gripping spacingly. This application has the effect of conveniently changing the screw tap drill bit.

Description

Automatic tapping machine convenient for replacing drill bit

Technical Field

The utility model belongs to the technical field of tapping machine technique and specifically relates to an automatic tapping machine of drill bit conveniently changes is related to.

Background

The automatic tapping machine mainly drills threaded holes on products through a screw tap. Generally, an automatic tapping machine taps a steel plate or an iron plate, a smooth hole is drilled in the steel plate or the iron plate by a drill before tapping, and then the wall of the smooth hole is drilled by the automatic tapping machine. The screw tap drill bit can produce great friction between the glossy pore wall at the in-process of tapping, and along with the length of time that the screw tap drill bit used, the loss can take place for the screw tap drill bit, and then the screw hole error of drilling out is great. Therefore, the tap bit needs to be periodically replaced with a new one.

In the related art, screw tap drill bits of different specifications are firstly installed on a conversion sleeve, and then the conversion sleeve is rotatably installed on a motor output shaft of an automatic tapping machine through threads, so that the screw tap drill bits are driven by a motor to rotate for drilling.

In view of the above-mentioned related technologies, the inventor believes that the conversion sleeve needs to be unscrewed from the automatic tapping machine each time the tap drill is replaced, then the tap drill is detached and replaced with a new one, and finally the conversion sleeve is installed on the automatic tapping machine in a threaded manner, so that the whole process is complicated.

SUMMERY OF THE UTILITY MODEL

In order to conveniently change the screw tap drill bit, the application provides an automatic tapping machine of conveniently changing the drill bit.

The application provides a pair of conveniently change automatic tapping machine of drill bit adopts following technical scheme:

the utility model provides a conveniently change automatic tapping machine of drill bit, includes tapping machine body, spliced pole and elasticity centre gripping subassembly, set up on the spliced pole and supply screw tap drill bit male inserting groove, elasticity centre gripping subassembly slide set up in on the spliced pole and to lieing in screw tap drill bit in the inserting groove carries out the centre gripping spacing.

Through adopting above-mentioned technical scheme, when needing to be changed the screw tap drill bit, remove elasticity centre gripping subassembly and make it loosen the screw tap drill bit that needs to be changed, then insert new screw tap drill bit in the inserting groove, later loosen elasticity centre gripping subassembly, elasticity centre gripping subassembly will press from both sides tightly the screw tap drill bit that inserts in the inserting groove under elastic effect, accomplish the change. The elastic clamping assembly only needs to be moved in the whole process of replacing the screw tap drill, so that the replacement is convenient.

Optionally, the elastic clamping assemblies are symmetrically provided with two groups, each elastic clamping assembly comprises a clamping block and a spring, a telescopic groove is formed in the outer wall of the connecting column, the telescopic groove is communicated with the insertion groove, a baffle for shielding the notch of the telescopic groove is arranged on the outer wall of the connecting column, and the springs are located between the clamping blocks and the baffle and used for driving the clamping blocks to clamp the screw tap drill.

Through adopting above-mentioned technical scheme, two sets of elasticity centre gripping subassemblies form the form of symmetry and carry out the centre gripping to the tap drill, are similar to the tap spanner and carry out the centre gripping to the tap drill. The clamping block can directionally slide in the telescopic groove, and the clamping block and the spring are limited in the telescopic sleeve by the baffle, so that the stability of the clamping block and the spring after installation is improved. The clamping block automatically clamps the screw tap drill bit inserted into the insertion groove under the action of the spring, so that convenience in replacing the screw tap drill bit is improved.

Optionally, one side of the clamping block, which faces away from the spring, is provided with a rectangular clamping groove.

By adopting the technical scheme, most of the clamping parts of the tap drill bit are rectangular columns, so that the rectangular clamping grooves are formed in the clamping blocks, the clamping parts of the tap drill bit can be inserted, and the tap drill bit and the connecting column can rotate synchronously.

Optionally, the bottom of the rectangular clamping groove is provided with an insertion column, and the outer wall of the tap drill bit is provided with a slot for the insertion column to be inserted into.

Through adopting above-mentioned technical scheme, the plug-in connection post inserts in the slot of screw tap drill bit, carries on spacingly to the screw tap drill bit along the direction that inserts in the inserting connection slot, makes the grip block difficult for breaking away from the grip block along the direction that inserts the inserting connection slot with screw tap drill bit centre gripping back screw tap drill bit.

Optionally, the automatic tapping machine convenient for replacing the drill bit further comprises two driving assemblies for driving the clamping blocks to be away from each other, wherein the driving assemblies are provided with two groups, and the two groups of driving assemblies correspond to the two groups of elastic clamping assemblies one to one.

Through adopting above-mentioned technical scheme, can order about the elasticity centre gripping subassembly through drive assembly and slide, and then make the centre gripping subassembly can relax the screw tap drill bit, it is comparatively convenient when changing the drill bit.

Optionally, the drive assembly including slide install in actuating lever on the spliced pole, the confession has been seted up on the grip block the drive lever male inclined groove, be provided with on the actuating lever with the inclined plane of the inclined plane laminating of inclined groove.

Through adopting above-mentioned technical scheme, remove the actuating lever, the actuating lever will slide in the inclined groove, and the inclined plane on the actuating lever is laminated with the inclined plane of inclined groove, and when the actuating lever slided, two grip blocks kept away from each other under the effect of actuating lever, and then removed the locking to the silk awl drill bit.

Optionally, the driving assembly further comprises a tension spring for driving the driving rod to move towards the direction of the notch of the inclined groove.

Through adopting above-mentioned technical scheme, when not applying force to the actuating lever, the actuating lever will move to the notch that is close to the inclined groove under the effect of extension spring, and the grip block moves under the effect of spring this moment and presss from both sides tightly the screw tap drill bit, and then only need when pressing from both sides tight screw tap drill bit loosen the actuating lever can, comparatively automatic and convenient.

Optionally, a sliding groove for sliding the driving rod is formed in the connecting column, and the sliding groove is communicated with the telescopic groove.

Through adopting above-mentioned technical scheme, the actuating lever can the orientation slide under the restriction in the groove that slides and can not take place great skew, and then the drive grip block removes, and the groove of sliding simultaneously is convenient for the actuating lever with flexible groove intercommunication and inserts in the inclined groove.

Optionally, be provided with the stopper on the lateral wall of actuating lever, the confession has been seted up on the cell wall in groove of sliding the spacing groove that the stopper slided and confession the stopper inserts spacing inslot's the groove of stepping down.

Through adopting above-mentioned technical scheme, during the installation actuating lever, the stopper from stepping down the inslot slip and going into the spacing inslot, the actuating lever will be located the inslot that slides this moment, and the actuating lever is directional to be slided under the cooperation of stopper and spacing groove, is difficult for breaking away from out from the inslot that slides, and then more stable when making the actuating lever slide.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the drill bit is replaced, the driving rod is moved, the two clamping blocks are mutually far away from the screw tap drill bit to be loosened under the action of the two driving rods, then a new screw tap drill bit is inserted into the insertion groove, the driving rod is loosened, and the clamping blocks automatically clamp the screw tap drill bit under the action of the spring, so that the screw tap drill bit is more convenient to replace;

2. the clamping part of the screw tap drill bit is mostly a rectangular column, so that the rectangular clamping groove is formed in the clamping block, so that the clamping part of the screw tap drill bit can be inserted, and the screw tap drill bit and the connecting column can be conveniently and synchronously rotated;

3. the plug-in post inserts in the slot of screw tap drill bit, carries on spacingly to the screw tap drill bit along the direction that inserts in the inserting groove, makes the grip block difficult for breaking away from the grip block along the direction that inserts the inserting groove with screw tap drill bit centre gripping back screw tap drill bit.

Drawings

Fig. 1 is a block diagram of an automatic tapping machine that facilitates bit replacement in an embodiment of the present application.

Fig. 2 is an exploded view of the resilient clamping assembly and the drive assembly in an embodiment of the present application.

FIG. 3 is a cross-sectional view of an attachment post, a resilient clamping assembly, and a drive assembly in an embodiment of the present application.

Description of the reference numerals: 1. a tapping machine body; 2. connecting columns; 21. a thread groove; 22. inserting grooves; 23. a telescopic groove; 24. a baffle plate; 25. a sliding groove; 26. a yielding groove; 27. a limiting groove; 3. an elastic clamping assembly; 31. a clamping block; 311. a spring post; 312. a rectangular clamping groove; 313. inserting the column; 314. an inclined groove; 32. a spring; 4. a drive assembly; 41. a drive rod; 411. a limiting block; 412. an inclined surface; 42. a tension spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses automatic tapping machine of conveniently changing drill bit.

Referring to fig. 1 and 2, the automatic tapping machine convenient for bit replacement includes a tapping machine body 1, a connecting column 2, an elastic clamping assembly 3, and a driving assembly 4. The connecting column 2 is installed on the motor output shaft of the tapping machine body 1 in a threaded mode, and the screw tap drill bit is clamped on the connecting column 2 through the elastic clamping assembly 3. Elastic clamping component 3 slides and sets up on spliced pole 2, and drive assembly 4 also slides and sets up on spliced pole 2 equally, and drive assembly 4's the direction of sliding is perpendicular with elastic clamping component 3's the direction of sliding. The driving assembly 4 is used for driving the elastic clamping assembly 3 to loosen the tap bit.

In this embodiment, the connection column 2 is taken as a cylinder as an example, the elastic clamping assemblies 3 are provided with two groups, the two groups of elastic clamping assemblies 3 are circumferentially and uniformly arranged on the connection column 2 at intervals, and the sliding direction of the two groups of elastic clamping assemblies 3 is the radial direction of the connection column 2. The driving components 4 are also provided with two groups, the two groups of driving components 4 correspond to the two groups of elastic clamping components 3 one by one, and the sliding square shape of the driving components 4 is the axial direction of the connecting column 2. A set of resilient clamping members 3 and a drive member 4 will be described as an example.

Threaded groove 21 is seted up to spliced pole 2 one end, and the output shaft of tapping machine body 1 motor inserts in threaded groove 21 and with spliced pole 2 threaded connection. The plug-in groove 22 has been seted up to the one end of spliced pole 2 deviating from thread groove 21, and the screw tap drill bit inserts in the plug-in groove 22 and through the spacing centre gripping of elastic clamping component 3 centre gripping.

Referring to fig. 2 and 3, the elastic clamp assembly 3 includes a clamp block 31 and a spring 32. The outer wall of the connecting column 2 is provided with a telescopic groove 23, and the telescopic groove 23 is communicated with the cartridge groove. The clamping block 31 is inserted into the telescopic slot 23 and part of the clamping block 31 is positioned in the inserting slot 22; part of the clamping block 31 is located in the telescopic slot 23. The baffle 24 is installed through the bolt to the opening part of the flexible groove 23 of spliced pole 2 outer wall, and the baffle 24 shelters from the opening of flexible groove 23. The spring 32 is located in the telescopic slot 23, and one end of the spring 32 abuts against the clamping block 31 and the other end abuts against the baffle plate 24. One end of the clamping block 31 close to the spring 32 is integrally formed with a spring 32 column 311, and the spring 32 is sleeved on the spring 32 column 311, so that the spring 32 is more stable after being installed.

One end of the clamping block 31, which is far away from the spring 32, is provided with a rectangular clamping groove 312. A rectangular holding groove 312 penetrates the holding block 31 in the axial direction of the connecting column 2. The trailing end of the tap bit, i.e., the portion of the gripping portion, is inserted into the rectangular gripping slot 312. The bottom of the rectangular holding groove 312, i.e. the side of the holding groove close to the spring 32, is integrally formed with a plug-in post 313. The outer wall of the tail end of the tap drill bit is provided with a slot for inserting the insertion column 313, so that the axial direction of the tap drill bit is limited, and the tap drill bit is limited in the rectangular clamping groove 312.

Referring to fig. 2 and 3, the driving assembly 4 includes a driving lever 41 and a tension spring 42 that drives the driving lever 41 to move and then return. The outer wall of the connecting column 2 is provided with a sliding groove 25 for the insertion and sliding of the driving rod 41, the sliding groove 25 is arranged along the axial direction of the connecting column 2, and the sliding groove 25 is communicated with the telescopic groove 23. In this embodiment, the driving rod 41 is preferably an inverted L-shaped rod, the vertical plate of the driving rod 41 slides in the sliding groove 25 and is inserted into the telescopic groove 23, and the cross rod of the driving rod 41 protrudes out of the sliding groove 25 and is located outside the connecting column 2, so that the driving rod 41 is convenient to move.

The limiting block 411 is integrally formed on the side wall of the vertical rod of the driving rod 41, the groove wall of the sliding groove 25 is provided with a yielding groove 26 for inserting the limiting block 411 along the radial direction of the connecting column 2, the groove wall of the sliding groove 25 is also provided with a limiting groove 27, the extending direction of the limiting groove 27 is the axial direction of the connecting column 2, and the limiting groove 27 is communicated with the yielding groove 26. Get into the actuating lever 41 when sliding in the sliding groove 25, stopper 411 slides in spacing groove 27, and the setting up of stopper 411 makes actuating lever 41 be difficult for radially breaking away from sliding groove 25 along spliced pole 2 simultaneously. A shackle is integrally formed at one end of the driving rod 41, which is far away from the clamping block 31, a shackle is also integrally formed on the groove wall of the sliding groove 25, which is far away from the clamping block 31, and one end of the tension spring 42 is hooked with the shackle on the driving rod 41; the other end is hooked with the hook ring on the groove wall of the sliding groove 25, so as to drive the driving rod 41 to move in the direction away from the clamping block 31.

Referring to fig. 2 and 3, an inclined groove 314 is formed on one side of the clamping block 31 near the vertical rod of the driving rod 41, and an inclined surface 412 attached to the inclined surface of the inclined groove 314 is formed on one end of the vertical rod of the driving rod 41 near the clamping block 31. The inclined surface 412 is inclined toward the central axis of the connecting column 2 along the direction in which the driving rod 41 is inserted into the inclined groove 314, and the two holding blocks 31 move away from each other with the depth of the driving rod 41 inserted into the inclined groove 314.

The implementation principle of the automatic tapping machine with the conveniently replaced drill bit in the embodiment of the application is as follows: when the tap bit needs to be replaced, the drive lever 41 is moved by hand to move the drive lever 41 in a direction to approach the holding block 31, and at this time, the inclined surface 412 engages with the inclined groove 314 to move the holding block 31 in a direction to approach the stopper 24, thereby compressing the spring 32. Then the tail end of the tap drill, i.e. the clamping part, is inserted into the insertion groove 22 and the tail end of the tap drill is positioned in the rectangular clamping groove 312 to be limited; when the driving rod 41 is released, the two clamping blocks 31 are driven by the spring 32 to approach each other and enable the insertion column 313 to be inserted into the slot of the tap drill, so that the tap drill is clamped and limited. The whole process only needs to move the driving rod 41, and then the replacement is more convenient.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a conveniently change automatic tapping machine of drill bit which characterized in that: including tapping machine body (1), spliced pole (2) and elasticity centre gripping subassembly (3), set up on spliced pole (2) and supply screw tap drill male inserting groove (22), elasticity centre gripping subassembly (3) slide set up in on spliced pole (2) and to being located screw tap drill in inserting groove (22) carries out the centre gripping spacingly.

2. The automatic tapping machine convenient for bit replacement according to claim 1, wherein: elasticity centre gripping subassembly (3) symmetry is provided with two sets ofly, elasticity centre gripping subassembly (3) include grip block (31) and spring (32), flexible groove (23) have been seted up on the outer wall of spliced pole (2), flexible groove (23) with inserting groove (22) intercommunication, the outer wall of spliced pole (2) is provided with right baffle (24) that flexible groove (23) notch sheltered from, spring (32) are located grip block (31) with be used for the drive between baffle (24) grip block (31) presss from both sides the screw tap drill tightly.

3. The automatic tapping machine convenient for bit replacement according to claim 2, wherein: one side of the clamping block (31) departing from the spring (32) is provided with a rectangular clamping groove (312).

4. The automatic tapping machine convenient for bit replacement according to claim 3, wherein: an insertion column (313) is arranged at the bottom of the rectangular clamping groove (312), and an insertion groove for the insertion column (313) to insert into is formed in the outer wall of the tap drill.

5. The automatic tapping machine convenient for bit replacement according to claim 2, wherein: still including the drive two drive assembly (4) that centre gripping piece (31) kept away from each other, drive assembly (4) are provided with two sets ofly, two sets of drive assembly (4) and two sets of elasticity centre gripping subassembly (3) one-to-one.

6. The automatic tapping machine convenient for bit replacement according to claim 5, wherein: drive assembly (4) including slide install in actuating lever (41) on spliced pole (2), seted up the confession on grip block (31) actuating lever (41) male chute (314), be provided with on actuating lever (41) with inclined plane laminating's of chute (314) inclined plane (412).

7. The automatic tapping machine convenient for bit replacement according to claim 6, wherein: the driving assembly (4) further comprises a tension spring (42) for driving the driving rod (41) to move towards the direction of the notch of the inclined groove (314).

8. The automatic tapping machine convenient for bit replacement according to claim 6, wherein: be provided with on spliced pole (2) and supply slide groove (25) that actuating lever (41) slided, slide groove (25) with flexible groove (23) intercommunication.

9. The automatic tapping machine convenient for bit replacement according to claim 8, wherein: be provided with stopper (411) on the lateral wall of actuating lever (41), offer the confession on the cell wall of groove (25) that slides stopper (411) spacing groove (27) that slide and confession stopper (411) insert groove (26) of stepping down in spacing groove (27).