CN203664870U

CN203664870U - Tapping device of tapping machine

Info

Publication number: CN203664870U
Application number: CN201320738927.6U
Authority: CN
Inventors: 李保来
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-20
Filing date: 2013-11-20
Publication date: 2014-06-25
Anticipated expiration: 2023-11-20

Abstract

The utility model provides a tapping device of a tapping machine. The tapping device comprises a material pushing mechanism, a clamp mechanism and a backward pushing mechanism, wherein the material pushing mechanism is provided with a material supporting base and a pushing rod, the material supporting base is used for supporting a workpiece to be tapped, and the pushing rod is used for pushing the workpiece to be tapped; the clamp mechanism comprises a cylinder base and a clamp, the cylinder base can operate, and a tapping device and a tapping rod are arranged in the cylinder base in a passing-through mode; the backward pushing mechanism is provided with a driving part located at the rear end of the tapping device and the tapping rod, the driving part is sleeved with a first elastic element and a second elastic element in a pivot mode, the first elastic element executes the first-step backward route on the tapping device and the tapping rod, and the second elastic element executes the second-step backward route on the tapping device and the tapping rod. Therefore, the backward pushing mechanism executes the backward routes of the tapping device and the tapping rod in two steps, so that tapping of the workpiece by the tapping device has different types of driving force in primary feeding and continuous feeding routes, a tapping process is more smooth, and tapping quality is more ideal; the first elastic element is arranged at the rear end of the driving part, and disassembly work of the tapping device is facilitated.

Description

Tapping device of tapping machine

Technical Field

The utility model relates to a tapping device of tapping machine, in particular to a tapping device of tapping machine suitable for tapping non-hexagonal nut.

Background

When a conventional tapping machine performs a hexagonal nut tapping process, a workpiece to be tapped is aligned by a material arranging mechanism and then sequentially falls to the front end of a feeding mechanism, and then is pushed by the feeding mechanism, so that the hexagonal nut is embedded in a groove with V-shaped cross sections at two sides.

The known tapping mode is only suitable for tapping of hexagonal nuts or workpieces which are embedded by grooves with V-shaped sections at two sides and do not rotate, and workpieces such as workpieces with circumferential appearances are difficult to apply, at the moment, the workpieces are usually clamped by a rotating clamp to rotate, and a tap which is positioned in the central axial direction of the clamp and has a tapping rod at the tail end is changed to advance only by being pushed to tap the workpieces to be tapped; it mainly utilizes a reset pressure cylinder to firstly push a pushing block to make the tapping rod of the tapping move forward and push against the workpiece to be tapped, so that the workpiece is smoothly attached to the pushing surface of a material pushing rotating shaft of a feeding mechanism, then the pneumatic cylinder of the feeding mechanism is actuated, the pressure of the pneumatic cylinder is greater than that of the reset pressure cylinder, so that the piston rod of the pneumatic cylinder pushes the pushing rod to move the workpiece clamped between the material pushing shaft rod and the tapping rod toward the tapping spindle direction, at the moment, the workpiece and the tapping rod can be pushed backwards to the position ready for tapping by the material pushing rod, when the workpiece is pushed to the position of the pneumatic chuck, a pressure chamber of the pneumatic cylinder is actuated to make a rotary clamp to clamp the workpiece, at the moment, because the material pushing shaft rod can freely rotate, the workpiece has no friction state, then the reset pressure cylinder makes the pushing block push against the tapping rod, so that the tapping rod of the tapping rod can tap the workpiece to tap the workpiece, after the tapping operation is completed, the rotary clamp is loosened, the reset pressure cylinder can displace backwards first, so that the workpieces after tapping are pushed one by one towards the tail end of the tapping rod in sequence, and fall downwards from the bent end of the tapping rod to be collected.

SUMMERY OF THE UTILITY MODEL

The known technology adopts a mode that a reset pressure cylinder is linked with a top pressing block to drive a tap and a tap rod, and cannot consider the problem that when a workpiece is tapped, the tap is rotated into the workpiece at the beginning, a larger force is required to be provided to overcome the resistance of tapping until the tap taps the workpiece and forms a basic tooth shape in the workpiece, and the resistance of tapping is reduced compared with the initial resistance; since the prior art adopts the reset pressure cylinder and cannot provide different forces for the tapping and the tapping rod, the smoothness of the tapping operation is affected, and the tapping quality is difficult to be improved.

Therefore, the utility model aims at providing a two segmentation application of force are attacked tooth device in tapping machine that attacks and attack pole in tooth can carry out.

In order to achieve the above object, the utility model provides a tapping machine tapping device, include: the pushing mechanism is provided with a material loading seat which can bear the workpieces to be tapped which fall into the material loading seat after being aligned, and a push rod which can push the workpieces to be tapped borne by the material loading seat; the fixture mechanism comprises a cylinder seat which can be driven to operate, and the cylinder seat is provided with a fixture corresponding to the material pushing mechanism; a tapping rod with a tapping head arranged at the front end is arranged in the cylinder seat in a penetrating way; and the backward pushing mechanism is provided with a driving piece, the driving piece is positioned at the rear end of the tapping and tapping rod, and a first elastic element capable of executing a first section backward pushing stroke of the tapping and tapping rod and a second elastic element capable of executing a second section backward pushing stroke of the tapping and tapping rod are pivoted on the driving piece.

The tapping device of the tapping machine as described above, wherein one end of the first elastic element is pivotally sleeved on an adjusting member of the driving member, and the other end is stopped by a flange on the driving member.

The tapping device of the tapping machine, wherein the backward pushing mechanism further comprises a fixed seat, the fixed seat is provided with a pivot seat, the pivot seat is provided with two pivot holes which are parallel to each other, and an operation hole is arranged between the two pivot holes; the two pivot rods are respectively pivoted on the two pivot holes; one end of the two pivot rods in the same direction is provided with a seat frame which can be linked with the two pivot rods together; the driving piece penetrates through the operation hole, and one end of the driving piece is abutted against the seat frame and is linked with the seat frame so as to execute the back pushing stroke of the tapping rod and the tapping rod.

The tapping device of the tapping machine as described above, wherein the second elastic element is located on the outer diameter of the driving member between the seat frame and the pivot seat, and one end of the second elastic element is stopped by a stopper on the pivot seat.

The tapping device of the tapping machine as above, wherein one end of the first elastic element is pivoted to the driving element and is provided with an external thread at an outer diameter and is screwed to the inner hole of the adjusting element of the adjusting hole of the leaning element.

The tapping device of the tapping machine is characterized in that a screw part for screwing and positioning the adjusting part in the state of being screwed in the adjusting hole can be arranged outside the adjusting hole.

The tapping device of the tapping machine as described above, wherein the wire diameter of the first elastic element is larger than the wire diameter of the second elastic element.

The tapping device of the tapping machine is as above, wherein the front end of the seat frame is provided with a support seat, and the front end of the support seat is concavely provided with a holding groove.

The tapping device of the tapping machine as described above, wherein the pivot base is provided with a hollowed-out section recessed inwards from one side of the pivot base, and a leaning piece is arranged outside the hollowed-out section and covers the hollowed-out section, and the leaning piece is provided with two shaft holes corresponding to the two pivot holes respectively; the leaning piece is provided with a regulating hole which is corresponding to the operating hole and is internally provided with internal threads.

The tapping device of the tapping machine is characterized in that two sides of the holding groove close to the rear end are respectively provided with an embedded groove, and an insert capable of adjusting and executing the backward pushing stroke of the tapping rod and the tapping rod can be embedded in the embedded groove.

The tapping device of the tapping machine, wherein the material loading seat of the material pushing mechanism is arranged at the front end of a material pushing frame, and the material pushing frame is provided with a material pushing frame at the rear end opposite to the material loading seat; the front end of the pushing frame is provided with a connecting plate which is commonly arranged at the front ends of an output shaft of a pressure cylinder and a pivot rod of a pushing mechanism arranged in parallel with the pressure cylinder, and a push rod capable of pushing the workpiece to be tapped and borne by the material bearing seat is arranged between the connecting plate and the material bearing seat.

The tapping device of the tapping machine as above, wherein the connecting plate is detachably fastened to the output shaft of the pressure cylinder and the pivot rod of the pushing mechanism.

The tapping device of the tapping machine is characterized in that the cylinder base of the clamp mechanism can be driven by the belt pulley to rotate, the cylinder base is provided with a shaft cylinder in the center, and the front end of the shaft cylinder is provided with the tapping rod of the tapping.

The tapping device of the tapping machine as described above, wherein the fixture of the fixture mechanism is operated by a rotary cylinder.

The embodiment of the utility model has the advantages that by the back-pushing stroke of the back-pushing machine component to the tapping and the tapping rod in two stages, the tapping process of the workpiece by the tapping has different driving forces in the initial feeding and the continuous feeding strokes, so that the tapping process is smoother, and the tapping quality is more ideal; the first elastic element is designed at the rear end of the driving piece, which is beneficial to the dismounting and replacing operation because the first elastic element is easy to wear due to more actuating force in the whole tapping stroke, and the first elastic element can be taken out and replaced as long as the adjusting piece is dismounted.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,

fig. 1 is a schematic mechanism diagram of an embodiment of the present invention.

Fig. 2 is a side schematic view of fig. 1.

Fig. 3 is a schematic view of the hoop portion of the cylinder output shaft, the pivot rod, and the push rod after the connection plate is detached in the embodiment of the present invention.

Fig. 4 is a schematic view of a hoop groove of a connecting plate in an embodiment of the present invention.

Fig. 5 is a schematic diagram of a push-back mechanism in an embodiment of the present invention.

Fig. 6 is an operation schematic diagram of the pushing mechanism pushing the workpiece to be processed into the fixture.

Fig. 7 is an operation diagram illustrating the retraction of the push rod of the pushing mechanism according to the embodiment of the present invention.

Fig. 8 is a schematic view illustrating the tapping and the actuation of the first elastic element of the tapping tool according to the embodiment of the present invention.

Fig. 9 is a schematic view illustrating the tapping completed by the tapping and the actuation of the second elastic element according to the embodiment of the present invention.

Main element number description:

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.

Referring to fig. 1 and 2, a tapping device of a tapping machine according to an embodiment of the present invention includes: the pushing mechanism 1, the clamp mechanism 2 and the back pushing mechanism 3; wherein:

the material pushing mechanism 1 is provided with a material loading seat 13 at the front end of a material pushing frame 11 for receiving the aligned and fallen workpieces 12 to be tapped, and a material pushing frame 14 at the rear end of the material pushing frame 11 opposite to the material loading seat 13; a connecting plate 141 is arranged at the front end of the pushing frame 14, and is jointly erected at the output shaft 143 of a pressure cylinder 142 and the front end of a pivot rod 144 arranged in parallel with the pressure cylinder 142, and a pushing rod 145 linked by the connecting plate 141 is arranged between the connecting plate 141 and the material loading seat 13, and can push the workpiece 12 to be tapped and received by the material loading seat 13; (please refer to fig. 3 and 4) the connecting plate 141 has an arc-shaped hoop groove 146, which is a hoop part 147 that is detachably hooped on the output shaft 143, the pivot rod 144 and the push rod 145 of the pressure cylinder 142.

The clamp mechanism 2 comprises a cylinder base 23 which is arranged on the machine base 21 and can be driven by the belt pulley 22 to operate and a shaft cylinder 24 which is pivoted in the cylinder base 23, the front end of the cylinder base 23 is provided with a rotary cylinder 25 controlled by air pressure corresponding to the material pushing mechanism 1, the rotary cylinder controls a clamp 26, the clamp 26 is provided with a shaft hole 261, and the shaft hole 261 is used for the shaft cylinder 24 to penetrate through; a tapping rod 27 with a tapping 271 at the front end is arranged in the shaft barrel 24 in a penetrating way, and an arc bending part 272 is arranged at the tail end of the tapping rod 27.

Referring to fig. 5, the backward pushing mechanism 3 includes a fixed base 31, on which a pivot base 311 forming an included angle of 90 degrees with the fixed base is vertically installed, the pivot base 311 is provided with two pivot holes 312 parallel to each other and a hollowed-out section 314 recessed inwards from one side of the pivot base 311, a shaft sleeve 313 is installed in the two pivot holes 312, a leaning piece 315 is installed outside the hollowed-out section 314 and covers the hollowed-out section 314, the leaning piece 315 is provided with two shaft holes 316 corresponding to the two pivot holes 312, an operation hole 317 is installed between the two pivot holes 312, and a regulating hole 318 provided with internal threads is installed on the corresponding leaning piece 315;

two pivot rods 32, which are spaced at a proper distance and are pivoted in the shaft sleeve 313 of the two pivot holes 312 and the two shaft holes 316 of the leaning piece 315 in parallel, wherein one end of the two pivot rods 32 in the same direction is provided with a seat frame 321 which can be linked with the two pivot rods 32, the front end of the seat frame 321 is provided with a leaning seat 322, the front end of the leaning seat 322 is concavely provided with a holding groove 323, two sides of the holding groove 323 near the rear end are respectively provided with an embedding groove 324, and an embedding piece can be embedded in the embedding groove 324 to adjust and execute the backward pushing stroke of the tapping rod 27 and the tapping rod 271 (the conventional technology is not repeated);

a driving member 33, which passes through the operation hole 317 of the upper pivot seat 311 of the fixing seat 31, and one end of which is abutted against the seat frame 321 to be linked with the seat frame 321, and the other end of which extends through the adjusting hole 318 of the leaning member 315 and protrudes out of the leaning seat 315; a positioning part 331 with external thread is arranged at the rear part of the driving part 33, and a positioning element 332 composed of a nut is screwed on the positioning part 331; a first elastic element 333 is pivoted on the outer diameter of the driving member 33, and has a relatively large wire diameter, one end of which is pivoted on a built-in hole 342 of the adjusting member 34 pivoted on the driving member 33 and having an outer thread 341 and screwed in the adjusting hole 318 of the leaning member 315, and the other end of which is stopped by a flange 334 on the driving member 33; the adjusting member 34 is screwed in the adjusting hole 318, and the adjusting member 34 can be fixed by a screw member 343 from the outside of the adjusting hole 318; the driving member 33 is pivoted on the outer diameter between the seat frame 321 and the pivot seat 311 by a second elastic element 335, which has a smaller wire diameter than the first elastic element 333 and is stopped at one end by a stopper 319 on the pivot seat 311.

In practice, when the previous tapping stroke is finished, as shown in fig. 1, the backward pushing mechanism 3 pushes the tap 271 at the front end of the tap rod 27 out of the fixture 26, so that the tap 271 is supported and aligned and then falls to the workpiece 12 to be tapped, which is received by the material loading seat 13 at the front end of the material pushing mechanism 1, and abuts against the workpiece 12 to be tapped together with the push rod 145 of the material pushing mechanism 1.

As shown in fig. 6, the output shaft 143 is driven by the pressing cylinder 142 to move forward, so that the output shaft 143 and the front end connecting plate 141 of the pivot rod 144 parallel to the pressing cylinder 142 drive the push rod 145, and the push rod 145 pushes the workpiece 12 to be tapped to move toward the fixture 26, at this time, the tap 271 is supported against the workpiece 12 to be tapped to prevent it from falling, and the tap 271 drives the tap rod 27 to move backward and pushes the abutment 322 in the holding groove 323 of the backward pushing mechanism 3, so that the abutment 322 drives the seat frame 321 to move backward to the positioning position shown in the figure, and the first elastic element 333 and the second elastic element 335 are compressed to store the restoring energy.

Referring to fig. 7, after the workpiece 12 to be tapped pushed into the fixture 26 is clamped by the fixture 26, the push rod 145 is operated to retract, and a new workpiece 121 to be tapped falls into the material loading seat 13 again.

Referring to fig. 8, the tapping rod 27 is tapping with the tapping rod 271, and at this time, the action of the tapping rod 27 against the abutment 322 in the holding groove 323 is gradually released, and since the first elastic element 333 has a relatively large wire diameter, the accumulated restoring force is large and is released due to the preferential action, so that the first elastic element 333 pushes against the seat frame 321, and the abutment 322 in front is interlocked with the tapping rod 27 in the holding groove 323, so that the tapping rod 271 can tap with a relatively large urging force released by the first elastic element 333 at the initial feeding.

Referring to fig. 9, as mentioned above, when the displacement of the first elastic element 333 is stopped, the second elastic element 335 with smaller diameter behind the first elastic element 333 releases the restoring force, so that the second elastic element 335 with smaller diameter at the rear end is stopped by the blocking body 319, the front end of the second elastic element pushes the seat 321 to continuously drive the abutment 322 to push the tapping rod 27, so that the tapping 271 can release a relatively smaller and appropriate force to perform smooth tapping by the second elastic element 335 after tapping a section of thread, at this time, the displacement stroke and tapping stroke of the second elastic element 335 will be limited by the position where the positioning element 332 is screwed on the positioning portion 331 behind the driving member 33, when the positioning element 332 abuts against the adjusting member 34, the displacement of the second elastic element 335 will be terminated, and at this time, the tapping 271 will be set to complete tapping and abut against the next workpiece 121 to be tapped in the material loading seat 13, at the same time, the workpiece 122 that has been tapped is pushed to fall from the curved portion 272 of the end of the tapping rod 27 and collected.

To sum up, the utility model discloses the tooth device of attacking not only adopts the back pushing mechanism 3 that can do two stages to attack 271 and the tooth and attack pole 27 lapse, the displacement stroke and the attack stroke of first elastic element 333 and second elastic element 335 of back pushing mechanism 3 simultaneously, outside being restricted by the position that positioning element 332 spiral shell established on driving piece 3 rear location portion 331 respectively, this regulating part 34 spiral shell is located the position of adjusting hole 318 and also decides whole back pushing mechanism and can attack the fine setting of pole 27 lapse stroke to the tooth and attack the required difference of pole 271 and the tooth stroke of attacking, so whole tooth device of attacking can effectively provide attack the tooth initial and further attack the required application of force of feeding of tooth stroke, make the process of attacking more smooth-going, attack the tooth quality more ideal.

The first elastic element 333 is easy to wear due to the large actuation force in the whole tapping stroke, so it is designed at the rear end of the driving member 3 to facilitate the removal and replacement operation, and the first elastic element 333 can be removed and replaced by simply removing the adjusting member 34.

However, the above description is only a preferred and practical embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the changes and modifications of the equivalent structure made in the claims and the specification of the present invention should be covered by the present invention.

Claims

1. The utility model provides a tapping device of tapping machine which characterized in that, tapping machine tapping device includes:

the pushing mechanism is provided with a material loading seat which can bear the workpieces to be tapped which fall into the pushing mechanism after being aligned, and a push rod which can push the workpieces to be tapped borne by the material loading seat;

the clamp mechanism comprises a cylinder seat which can be driven to operate, and the cylinder seat is provided with a clamp corresponding to the material pushing mechanism; a tapping rod with a tapping head arranged at the front end is arranged in the cylinder seat in a penetrating manner;

and the backward pushing mechanism is provided with a driving piece, the driving piece is positioned at the rear end of the tooth tapping and tooth supplying rod, and the driving piece is pivoted with a first elastic element which can execute the backward pushing stroke of the first section of the tooth tapping and tooth tapping rod and a second elastic element which can execute the backward pushing stroke of the second section of the tooth tapping and tooth tapping rod.

2. The tapping device of claim 1, wherein one end of said first resilient element is pivotally mounted to a sleeve of an adjusting member of said driving member, and the other end of said first resilient element is stopped by a flange of said driving member.

3. The tapping device of a tapping machine as claimed in claim 1, wherein said backward pushing mechanism further comprises a fixed seat, said fixed seat being provided with a pivot seat, said pivot seat being provided with two pivot holes parallel to each other, an operating hole being provided between said two pivot holes; the two pivot rods are respectively pivoted on the two pivot holes; one end of the two pivot rods in the same direction is provided with a seat frame which can be linked with the two pivot rods together; the driving piece penetrates through the operation hole, and one end of the driving piece is abutted against the seat frame to be linked with the seat frame.

4. The tapping device of claim 3, wherein said second resilient element is located on an outer diameter of said driving member between said seat frame and said pivot base and is stopped at one end by a stopper on said pivot base.

5. The tapping device of claim 1, wherein one end of said first resilient element is pivotally mounted to said driving member and is externally threaded and is threadedly mounted to an internal bore of an adjusting member of an adjusting bore of a backup member.

6. The tapping device of a tapping machine as claimed in claim 5, wherein a screw member for screwing the adjusting member in the adjusting hole can be provided outside the adjusting hole.

7. The tapping device of a tapping machine as claimed in claim 1, wherein the wire diameter of said first resilient element is larger than the wire diameter of said second resilient element.

8. The tapping device of claim 3 wherein said seat frame has a retaining seat at a front end thereof, and said retaining seat has a recessed grip at a front end thereof.

9. The tapping device of a tapping machine as claimed in claim 3, wherein said pivot base is provided with a hollowed-out section recessed inwardly from one side of said pivot base, and a leaning piece is provided outside said hollowed-out section to cover outside said hollowed-out section, said leaning piece being provided with two shaft holes corresponding to said two pivot holes, respectively; the leaning piece is provided with an adjusting hole which is provided with an internal thread and corresponds to the operating hole.

10. The tapping device of claim 8, wherein said grip groove is provided with a recessed groove on each of the sides thereof near the rear end thereof, and an insert capable of adjusting the backward stroke of said tap and said tap rod is inserted into said recessed groove.

11. The tapping device of a tapping machine as claimed in claim 1, wherein the carrier of said pusher is arranged at the front end of a pusher, and said pusher is provided with a pusher at the rear end thereof opposite to said carrier; the front end of the pushing frame is provided with a connecting plate which is jointly erected at the output shaft of a pressure cylinder and the front end of a pivot rod of a pushing mechanism arranged in parallel with the pressure cylinder, and a push rod capable of pushing the workpiece to be tapped which is received by the material carrying seat is arranged between the connecting plate and the material carrying seat.

12. The tapping device of claim 11, wherein said connecting plate is detachably fastened to said output shaft of said pressure cylinder and said pivot rod of said pushing mechanism.

13. The tapping device of a tapping machine as claimed in claim 1, wherein the holder of said fixture mechanism is driven by a pulley to rotate, said holder is pivotally provided with a shaft, and said shaft is provided with a tapping rod having a front end thereof extending therethrough.

14. The tapping device of a tapping machine as claimed in claim 1, wherein the jaws of said jaw mechanism are operated by a rotary cylinder.