CN109570621B

CN109570621B - Broaching equipment with connection slide anti-drop function

Info

Publication number: CN109570621B
Application number: CN201811361928.7A
Authority: CN
Inventors: 赵建华; 陈留洋; 李敢; 刘代波; 龙暑意
Original assignee: Changsha Sisheng Intelligent Device Co ltd
Current assignee: Changsha Sisheng Intelligent Device Co ltd
Priority date: 2018-11-15
Filing date: 2018-11-15
Publication date: 2020-06-30
Anticipated expiration: 2038-11-15
Also published as: CN109570621A

Abstract

The invention is suitable for the technical field of broaching equipment, and provides broaching equipment with a connection sliding seat anti-disengaging function, which comprises a connection sliding seat, a screw rod, a driving motor used for driving the screw rod to rotate, a broach fixing assembly used for mounting a broach and connected with the connection sliding seat, wherein the connection sliding seat is connected to the screw rod, one end of the screw rod is connected with the driving motor, the broaching equipment also comprises an anti-disengaging protection piece and a transmission threaded sleeve used for transmitting the driving force of the screw rod to the connection sliding seat, when the connection sliding seat is contacted with the anti-disengaging protection piece, the anti-disengaging protection piece blocks the connection sliding seat from moving, so that the transmission threaded sleeve is gradually separated from the connection sliding seat to interrupt the transmission of the driving force, the transmission threaded sleeve is connected with the. The broaching equipment with the connection sliding seat anti-falling function can prevent the connection sliding seat from falling off the screw rod, and further avoid the problems that a broach is damaged and the connection sliding seat is difficult to install again.

Description

Broaching equipment with connection slide anti-drop function

Technical Field

The invention belongs to the technical field of broaching equipment, and particularly relates to broaching equipment with a connection sliding seat anti-falling function.

Background

In the existing broaching equipment, a connecting sliding seat connected with a broaching tool is connected with a lead screw, and the broaching tool is driven to move up and down by the lead screw to realize broaching processing of a workpiece. When the connecting slide seat moves to the tail end of the lead screw, if the power of the lead screw is forgotten to be closed, the connecting slide seat is separated from the lead screw, then the connecting slide seat drives the broach to be separated together, the broach is damaged, the connecting slide seat is installed again after the broach falls off, and special tools are needed to be used for connecting the slide seat, so that the broaching machine is very inconvenient.

Disclosure of Invention

In view of the above, the main objective of the present invention is to provide a broaching apparatus with an anti-disengaging function for a connecting slide, so as to solve the problem that the connecting slide is accidentally disengaged from a lead screw and a broach is damaged.

In order to achieve the purpose, the technical scheme of the invention is realized as follows: the utility model provides a broaching equipment with connect slide anticreep function, is including connecting slide, lead screw, being used for the drive lead screw pivoted driving motor with be used for supplying the broach installation and with connect the broach fixed subassembly that the slide is connected, the one end of lead screw with driving motor links to each other, still include anticreep protection piece and be used for with the drive power transmission of lead screw gives connect the transmission swivel nut of slide, connect the slide with when the anticreep protection piece touches, the anticreep protection piece blocks connect the slide removal, make the transmission swivel nut gradually with connect the slide separation and interrupt the transmission of drive power, the transmission swivel nut all with connect the slide with the lead screw links to each other, the anticreep protection piece is connected on the lead screw.

Preferably, the anti-falling protection piece comprises a main body which abuts against the bottom of the connecting sliding seat and is used for blocking the connecting sliding seat to move, an accommodating groove for accommodating the transmission threaded sleeve is formed in the main body, a connecting hole is formed in the bottom of the accommodating groove, and the screw rod is connected in the connecting hole.

Preferably, the depth of the receiving groove is greater than the height of the drive nut.

Preferably, the end of the screw rod is provided with a step shaft with a downward step surface, the step shaft penetrates through the connecting hole and is connected with a locking nut, and the locking nut enables the bottom of the accommodating groove to abut against the step surface of the step shaft.

Preferably, the broaching apparatus further includes a detection switch fixed to the connecting slider.

Preferably, the connecting slide seat is provided with a mounting hole, at least one part of the transmission threaded sleeve is inserted into the mounting hole, and the transmission threaded sleeve can be pulled out of the mounting hole to be separated when the connecting slide seat touches the anti-falling protection piece.

Preferably, a positioning ring is connected to an end of the transmission threaded sleeve that is not inserted into the mounting hole, and an end of the positioning ring is in contact connection with the bottom of the connecting slide.

Preferably, a guide flat key used for being matched and sensed with the detection switch is connected to the transmission screw sleeve through a fastener, and a sliding groove used for accommodating the guide flat key is formed in the side wall of the mounting hole.

Preferably, the broach fixing assembly comprises an auxiliary sliding plate and a cutter clamp body, the cutter clamp body is fixed on the auxiliary sliding plate, the broach is connected on the cutter clamp body, and the connecting sliding seat is connected with the auxiliary sliding plate.

Preferably, the broach fixing assembly further comprises an adjusting member for adjusting a position distance between the auxiliary sliding plate and the connecting slide, and the adjusting member is disposed between the auxiliary sliding plate and the connecting slide.

According to the broaching equipment with the anti-falling function of the connecting sliding seat, the transmission threaded sleeve is connected between the connecting sliding seat and the screw rod, so that the rotary motion of the screw rod can be transmitted to the connecting sliding seat, and the connecting sliding seat can move on the screw rod in a reciprocating mode. And through be provided with anticreep protection piece on the lead screw to when connecting the slide and the anticreep protection touches, anticreep protection piece can block to connect the slide and continue to remove. Meanwhile, the transmission threaded sleeve can be separated from the connecting sliding seat, the effect of interrupting transmission of driving force for the connecting sliding seat is achieved, the connecting sliding seat is stopped from moving before being separated from the lead screw, the situation that the connecting sliding seat is separated from the lead screw is avoided, and the broach is protected from being damaged by falling.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a broaching apparatus provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a cutting device provided in an embodiment of the present invention, in which a driving motor, a lead screw and a driving screw sleeve are omitted;

fig. 3 is a front view of the cutting device provided in the embodiment of the present invention, in which the driving motor, the lead screw, and the driving screw sleeve are omitted;

FIG. 4 is a schematic cross-sectional view of a transfer nut coupled to a lead screw according to an embodiment of the present invention;

FIG. 5 is an enlarged partial schematic view at A in FIG. 2;

fig. 6 is a schematic sectional view at B-B in fig. 3.

Description of reference numerals:

10. connecting the sliding seat; 11. a screw rod; 12. a drive motor 12; 13. a broach securing assembly; 131. an auxiliary slide plate; 132. a tool holder body; 133. an adjustment member; 14. a transmission threaded sleeve; 15. an anti-drop protector; 151. a main body; 152. an accommodating recess; 153. a connecting screw hole; 16. a detection switch; 17. mounting holes; 18. a positioning ring; 19. a fastener; 20. a guiding flat key; 21. a chute.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, directly disposed or connected, or indirectly disposed or connected through intervening elements or intervening structures.

In addition, if there are terms of orientation or positional relationship indicated by "length", "upper", "front", "top", "bottom", "inner", "outer", etc., in the embodiments of the present invention, they are based on the conventional placing state or using state, and they are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the structures, features, devices or elements referred to must have a specific orientation or positional relationship, nor must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The various features and embodiments described in the embodiments may be combined in any suitable manner, for example, different embodiments may be formed by combining different features/embodiments, and in order to avoid unnecessary repetition, various possible combinations of features/embodiments in the present invention will not be described in detail.

As shown in fig. 1 to 6, the broaching device with the connecting slide anti-disengaging function according to the embodiment of the present invention includes a connecting slide 10, a screw rod 11, a driving motor 12 for driving the screw rod 11 to rotate, and a broach fixing assembly 13 for mounting a broach and connected to the connecting slide 10, wherein one end of the screw rod 11 is connected to the driving motor 12. The broaching equipment further comprises an anti-falling protection piece 15 and a transmission threaded sleeve 14, wherein the transmission threaded sleeve is used for transmitting the driving force of the screw rod 11 to the connecting slide seat 10 so that the connecting slide seat 10 can reciprocate on the screw rod 11, when the connecting slide seat 10 touches the anti-falling protection piece 15, the anti-falling protection piece 15 can block the connecting slide seat 10 to move, the transmission threaded sleeve 14 is gradually separated from the connecting slide seat 10 and is interrupted to continuously transmit the driving force to the connecting slide seat 10, the transmission threaded sleeve 14 is connected with the connecting slide seat 10 and the screw rod 11, and the anti-falling protection piece 15 is connected to the screw rod 11. With this arrangement, the drive motor 12 rotates to drive the spindle 11 to rotate, since the drive screw 14 is connected not only to the spindle 11 but also to the connecting carriage 10. Therefore, when the transmission screw sleeve 14 reciprocates on the screw rod 11, the connecting slide seat 10 can be driven to synchronously move, and further the broaching tool fixing component 13 connected with the connecting slide seat 10 can be driven to synchronously move, so that broaching of a workpiece is realized by the broaching tool connected with the broaching tool fixing component 13. In the actual processing process, sometimes, when the connecting slide 10 moves to the end of the screw rod 11, the power of the screw rod 11 is forgotten to be turned off, so that the connecting slide 10 is separated from the screw rod 11, and a series of subsequent problems such as reinstallation is caused. Therefore, in the broaching apparatus provided in the embodiment of the present invention, by providing the anti-slip protector 15 at the rear end of the screw 11, the anti-slip protector 15 can block the connecting slider 10 when the connecting slider 10 moves to touch the screw, so as to prevent the connecting slider 10 from moving further. On the other hand, the connection mode between the transmission screw sleeve 14 and the connection sliding base 10 is not a fixed connection, but on the premise that the driving force of the screw rod 11 can be transmitted to the connection sliding base 10 through the transmission screw sleeve 14, so that the connection sliding base 10 can move along with the screw rod, when the connection sliding base 10 resists, the transmission screw sleeve 14 still moves forward along with the screw rod 11 and can be separated from the connection sliding base 10. Thus, when the connection sliding seat 10 is blocked and protected by the anti-falling protection piece 15, the transmission screw sleeve 14 will continue to move under the driving of the screw rod 11 and gradually separate from the connection sliding seat 10, so as to interrupt the transmission of the driving force to the connection sliding seat 10, and further protect the connection sliding seat 10 from falling off from the screw rod 11. The problem that the connecting slide seat 10 can fall off from the screw rod 11 in the conventional broaching device is solved. Under the protection of the anti-drop protection piece 15, the operation safety of the broaching device is improved.

Specifically, as shown in fig. 1 to 4, in the embodiment of the present invention, the anti-slip protector 15 includes a main body 151 abutting against the bottom of the connecting slide 10 for blocking the connecting slide 10 from moving (abutting against the connecting slide 10 with a certain pressing force therebetween), and an accommodating groove 152 for accommodating the driving screw 14 is provided on the main body 151, a connecting hole 153 is provided at the bottom of the accommodating groove 152, and the screw rod 11 is connected in the connecting hole 153. Thus, when the connection sliding seat 10 moves to touch the main body 151, the main body 151 blocks the connection sliding seat 10 from moving continuously, and the main body 151 is provided with the accommodating groove 152, so that the transmission threaded sleeve 14 moving continuously can move into the accommodating groove 152 gradually, and the connection sliding seat 10 does not move synchronously, so that the transmission threaded sleeve 14 moving continuously forward can be separated from the connection sliding seat 10 gradually, and further the effect of transmitting the driving force to the connection sliding seat 10 is interrupted, and the connection sliding seat 10 stops moving and cannot fall off from the screw rod 11. The anti-falling protection piece 15 is arranged, so that the problem that the connecting sliding seat 10 falls off from the screw rod 11 in the existing broaching equipment is well solved. The connecting slide 10 is not detached from the screw 11 under the protection of the detachment prevention protector 15. Therefore, the broaching device provided by the embodiment of the invention avoids the problems that the broach is damaged due to the fact that the connecting slide seat 10 falls off from the screw rod 11, and the broaching tool is inconvenient to mount due to the fact that a special tool is needed to mount the connecting slide seat 10 again after the broach falls off.

Specifically, in practical arrangements, the depth of the receiving recess 152 needs to be greater than or at least equal to the height of the drive nut 14. Thereby allowing the receiving groove 152 to completely receive the disengaged drive nut 14. Preferably, the depth of the receiving groove 152 is set to be greater than the height of the drive nut 14.

Specifically, the connection between the anti-slip protector 15 and the lead screw 11 may be in various forms, and the connection hole 153 at the bottom of the receiving groove 152 may be a threaded hole matching with the lead screw 11. Therefore, one end of the screw 11 can be directly coupled into the coupling hole 153 at the time of coupling. Of course, the end of the screw rod 11 may be a stepped shaft with a downward step surface, and the stepped shaft is provided with a thread. During connection, the step shaft penetrates through the connecting hole 153 and then is connected with the locking nut, and the bottom of the accommodating groove abuts against the step surface of the step shaft through the locking nut, so that the anti-falling protection piece 15 is limited and fixed on the screw rod 11. And at this time, the connection hole 153 may be provided as a light hole through which the step shaft can pass. In other embodiments, when the end of the lead screw 11 is configured as a stepped shaft, the connecting hole 153 may be a threaded hole capable of being matched and connected with the stepped shaft.

Specifically, as shown in fig. 1 to 5, in order to further improve the safety of the use of the broaching apparatus, the broaching apparatus further includes a detection switch 16, and the detection switch 16 is fixed to the connecting slide 10. Therefore, the detection switch 16 is used for transmitting a detection signal to monitor the connection position between the transmission screw sleeve 14 and the connection sliding seat 10 in real time, when the detection switch 16 loses signal induction with the transmission screw sleeve 14, the detection switch 16 sends a judgment signal to the main control system, the main control system sends a control instruction to stop rotating the driving motor 12, the transmission screw rod 11 is not driven to rotate any more, the transmission screw sleeve 14 can be stopped to move, and the safety of the whole use of the broaching device is further ensured.

Specifically, as shown in fig. 1 to 5, a mounting hole 17 is opened on the connecting slide 10, and one end of the driving screw 14 is inserted into the mounting hole 17 and can be pulled out and separated from the mounting hole 17 when the connecting slide 10 and the anti-drop protector 15 touch each other. With the arrangement, the non-fixed connection between the transmission threaded sleeve 14 and the connecting sliding seat 10 is realized, the driving force provided by the driving motor 12 can be transmitted to the connecting sliding seat 10, and the transmission of the driving force can be interrupted by separating the transmission threaded sleeve 14 from the connecting sliding seat 10 in time.

Likewise, a second transmission 18 is provided between the transmission thread insert 14 and the spindle 11. Through the second transmission structure 18, the connection between the transmission threaded sleeve 14 and the screw rod 11 is realized, the transmission threaded sleeve 14 and the screw rod 11 can always keep synchronous motion, and the driving force provided by the driving motor 12 is reliably transmitted. In actual processing, as the broaching equipment moves up and down to perform broaching processing on a workpiece, the transmission screw sleeve 14 is inserted into the mounting hole 17, the function of pulling the connecting sliding seat 10 to move downwards can be reliably realized under the action of friction force between the transmission screw sleeve 14 and the mounting hole 17 and by combining the gravity of the broaching tool fixing component 13, and when the connecting sliding seat needs to be separated, the connecting sliding seat can overcome the friction force between the transmission screw sleeve 14 and the mounting hole 17 and timely separate from the mounting hole 17, so that the anti-falling protection of the connecting sliding seat 10 can be reliably realized. In order to be able to move the connecting carriage 10 upwards, the mounting hole 17 can be provided as a stepped hole. Therefore, after the transmission screw sleeve 14 is inserted, the top end abuts against the bottom of the mounting hole 17, so that a driving force for pushing the connecting sliding seat 10 to move upwards can be provided, and the connecting sliding seat 10 can move upwards.

Specifically, in order to reduce the difficulty in manufacturing the connecting slider 10, in the embodiment of the present invention, the mounting holes 17 are provided as through holes having the same diameter. Thus, the end of the drive screw 14 which is not inserted into the mounting hole 17 is connected to a positioning ring 18, and one end of the positioning ring 18 is in contact connection with the bottom of the coupling slide 10. The diameter of the positioning ring 18 is larger than the diameter of the mounting hole 17 so that it cannot enter the mounting hole 17. This arrangement provides that during the upward movement of the coupling slide 10, the upward movement of the push coupling slide 10 is effected by the positioning ring 18 acting on the bottom of the coupling slide 10.

Specifically, in the embodiment of the present invention, the mounting hole 17 is provided as a circular hole, and thus, the outer peripheral wall of the drive screw 14 is also provided as a circular hole. Of course, in order to prevent the rotation of the drive nut 14 in the mounting hole 17, the peripheral wall of the drive nut 14 and the mounting hole 17 may be formed in a matching polygonal structure, so that the rotation of the drive nut 14 in the mounting hole 17 can be reliably prevented.

Specifically, as shown in fig. 1 to 6, in order to improve the accuracy of detecting the separation between the driving screw 14 and the connecting slide 10, a guiding flat key 20 for matching with the detecting switch 16 and sensing is connected to the driving screw 14 through a fastening member, a sliding slot 21 for accommodating the guiding flat key 20 is provided on the side wall of the mounting hole 17, and the guiding flat key 20 can be set to be higher than the top surface of the mounting hole 17 by a certain length, so as to ensure that the detecting switch 16 can accurately monitor the position of the guiding flat key 20. By the arrangement, the position of the guide flat key 20 is detected by the detection switch 16, and the guide flat key 20 is connected with the transmission threaded sleeve 14, so that whether the transmission threaded sleeve 14 is separated from the mounting hole 17 or not can be detected by detecting whether the guide flat key 20 can be detected or not through the detection switch 16, and the condition that the transmission threaded sleeve is stopped by mistake due to the fact that other objects shield the position of the transmission threaded sleeve is avoided.

Specifically, as shown in fig. 5 and 6, in order to improve the accuracy and reliability of the monitoring function, the detection switch 16 may be disposed at the edge of the mounting hole 17, opposite to the guide flat key 20, so as to ensure the timeliness and accuracy of the transmission and reception of the detection signal.

Specifically, the detection switch 16 may be a proximity switch, a travel switch, or a correlation switch, which can realize accurate monitoring of the position of the transmission connection sleeve.

Specifically, as shown in fig. 1 to 6, the broach fixing assembly 13 includes an auxiliary slide plate 131 and a tool holder 132, the tool holder 132 is fixed to the auxiliary slide plate 131, the broach is coupled to the tool holder 132, and the coupling slider 10 is coupled to the auxiliary slide plate 131. Thus, the auxiliary sliding plate 131 can move to provide guidance for the movement of the broaching tool, and the stability and reliability of broaching movement are ensured.

Specifically, as shown in fig. 1 to 3, the broach fixing assembly 13 further includes an adjusting member 133 for adjusting a position distance between the auxiliary slide plate 131 and the connection slider 10, the adjusting member 133 being disposed between the auxiliary slide plate 131 and the connection slider 10. Thus, when the length of the broach mounted on the tool holder 132 is changed, the distance between the coupling slider 10 and the sub-slider 131 is automatically adjusted by the adjuster 133, thereby ensuring reliable broaching.

Specifically, the adjustment member 133 is a cylinder capable of providing a telescopic motion. During installation, the main body of the oil cylinder is fixedly connected to the connecting slide carriage 10, and the telescopic rod of the oil cylinder is connected to the auxiliary slide plate 131.

According to the broaching equipment with the connection sliding seat anti-falling function provided by the embodiment of the invention, the connection sliding seat 10 is connected with the screw rod 11 through the transmission threaded sleeve 14, the anti-falling protection piece 15 is arranged at the tail end of the screw rod 11, and the detection switch 16 is arranged on the connection sliding seat 10 in a combined manner. It is thereby achieved that the further movement of the coupling slide 10 can be prevented by the blocking of the anti-slip protection 15, and that the drive screw 14 can be disengaged from the coupling slide 10 and the power for driving the coupling slide 10 to move can be interrupted. At the same time, the driving motor 12 can be controlled to stop rotating by combining with the detection switch 16, thereby further ensuring that the connecting slide 10 can not fall off from the screw rod 11. And further, the condition that the broach is damaged due to falling can be protected.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a broaching equipment with connect slide anticreep function, is including connecting slide, lead screw, being used for the drive lead screw pivoted driving motor with be used for supplying the broach installation and with the broach fixed subassembly that the connection slide is connected, the one end of lead screw with driving motor links to each other, its characterized in that still includes anticreep protection piece and be used for with the drive power transmission of lead screw gives connect the transmission swivel nut of slide, connect the slide with when the anticreep protection piece touches, the anticreep protection piece blocks connect the slide and remove, make the transmission swivel nut gradually with connect the slide separation and interrupt the transmission of driving force, the transmission swivel nut all with connect the slide with the lead screw links to each other, the protection piece anticreep is connected on the lead screw.

2. The broaching apparatus for preventing the detachment of the connecting slide base according to claim 1, wherein the detachment prevention protecting member includes a body abutting against a bottom of the connecting slide base for blocking the connecting slide base from moving, the body is provided with a receiving groove for receiving the driving nut, a bottom of the receiving groove is provided with a connecting hole, and the screw rod is connected in the connecting hole.

3. A broaching device with anti-drop function of the coupling slide as recited in claim 2, wherein the depth of said receiving recess is greater than the height of said driving screw sleeve.

4. A broaching device with an anti-drop function of a connecting slide seat as claimed in claim 2, wherein the end of the screw rod is provided with a step shaft with a downward step surface, the step shaft is arranged in the connecting hole in a penetrating manner and is connected with a locking nut, and the locking nut abuts the bottom of the accommodating groove on the step surface of the step shaft.

5. A broaching apparatus with a connecting-carriage drop-off prevention function according to claim 1, wherein said broaching apparatus further includes a detection switch fixed to said connecting carriage.

6. A broaching device with an anti-drop function of a connecting slide seat as claimed in claim 5, wherein the connecting slide seat is provided with a mounting hole, at least a part of the driving screw sleeve is inserted into the mounting hole and can be pulled out of the mounting hole when the connecting slide seat is contacted with the anti-drop protection member.

7. A broaching apparatus for preventing the detachment of the coupling slide according to claim 6, wherein a positioning ring is attached to an end of the driving screw not inserted into the mounting hole, and an end of the positioning ring is in contact with a bottom of the coupling slide.

8. A broaching device with a slide carriage anti-drop function as claimed in claim 7, wherein a guiding flat key for matching induction with the detection switch is connected to the driving screw sleeve through a fastener, and a sliding groove for accommodating the guiding flat key is arranged on the side wall of the mounting hole.

9. The broaching apparatus for preventing the detachment of the coupling slide according to any one of claims 1 to 8, wherein the broaching tool fixing unit includes an auxiliary slide plate and a tool holder fixed to the auxiliary slide plate, the broaching tool is coupled to the tool holder, and the coupling slide is coupled to the auxiliary slide plate.

10. A broaching apparatus having a connection-carriage escape prevention function as recited in claim 9, wherein the broaching tool fixing unit further includes an adjusting member for adjusting a positional distance between the auxiliary slide plate and the connection carriage, the adjusting member being provided between the auxiliary slide plate and the connection carriage.