CN111451526B

CN111451526B - Cutter unfolding power head

Info

Publication number: CN111451526B
Application number: CN202010286697.9A
Authority: CN
Inventors: 陈云法
Original assignee: Zhejiang Shuangzheng Technology Co ltd
Current assignee: Zhejiang Shuangzheng Technology Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2021-05-14
Anticipated expiration: 2040-04-13
Also published as: CN111451526A

Abstract

The invention provides a cutter unfolding power head, and belongs to the technical field of machinery. It has solved current exhibition sword unit head can't compromise dustproof and easy dismounting's problem. This exhibition sword unit head includes the main shaft and is used for supporting the supporting seat of main shaft, and the supporting seat is the tube-shape and is provided with slide rail and a plurality of sliders of sliding connection on the slide rail in the supporting seat, is provided with bearing frame and slider on the slider and has outstanding installation department in the slide rail lateral wall, links to each other through the fastener that passes the installation department between installation department and the bearing frame, and the supporting seat is including the backup pad that is used for installing the slide rail, and the backup pad is seted up the equipment hole that runs through in. This exhibition sword unit head can also easy dismounting when effective dirt-proof.

Description

Cutter unfolding power head

Technical Field

The invention belongs to the technical field of machinery, and relates to a machining power head, in particular to a cutter expanding power head.

Background

The power head is a power component which can realize main motion and feed motion and has automatic workpiece circulation, and different processing actions are realized mainly through main shaft rotation and feed. Particularly, the variable-speed transmission mechanism is a simple variable-speed transmission mechanism, has various forms, has the basic principle that a motor drives a gear variable-speed mechanism, can realize functions of boring, milling, drilling and the like, and can do linear motion in a small range due to the fact that some variable-speed transmission mechanisms are provided with guide rails. And if the workpiece machining process is complex, such as machining operations of oblique groove turning, taper face turning, thread turning and the like, the machining operation can be realized only by a specific servo cutter expanding power head.

At present, the existing cutter unfolding power head needs to utilize a driving source to drive a main shaft and a pull rod to rotate so as to realize various complex machining actions, and the driving source is connected with the pull rod and the main shaft through a plurality of groups of complex transmission mechanisms. Because the pull rod and the main shaft need to rotate in the circumferential direction and move in the axial direction, a special supporting structure consisting of a sliding block, a sliding rail, a bearing seat and a supporting seat is arranged below each group of transmission mechanisms to support the pull rod and the main shaft. For example, in a tool head for a cutter expanding tool disclosed in chinese patent document [ application No. 201520726505.6 ], a processing unit has a slide rail seat, two slide rails parallel to each other, a processing motor fixing seat, and a second nut holding seat, the two slide rails are fixed to the slide rail seat and parallel to a spindle of a spindle unit; the processing motor fixing seat is arranged on the two slide rails through the two first slide seats, the second nut holding seat is arranged on the two slide rails in a sliding manner, one end of the pull rod can axially displace and can rotatably penetrate through the spindle of the spindle unit, and the other end of the pull rod can rotatably penetrate through the second nut holding seat; that is to say, the supporting structure for supporting the main shaft and the pull rod in the above-mentioned tool head for spreading knives is actually composed of a slide block, a slide rail, a bearing seat, a supporting seat, etc.

For the existing cutter expanding power head adopting the similar support mode, the slide block and the bearing seat in the existing support structure are generally connected together in a detachable connection mode in view of the manufacturing and processing aspects, that is, when the main shaft and the pull rod need to be disassembled, the connection between the bearing seat and the slide block needs to be firstly released, then the bearing seat can be taken out of the pull rod, and the main shaft and the pull rod can be disassembled in the next step; for those skilled in the art, in view of the above-mentioned dismounting problem, for the sake of convenience of dismounting, a dustproof structure is not generally set to perform dustproof treatment on the above-mentioned supporting structure, because if the dustproof structure is set, it will inevitably obstruct the dismounting operation, and the dismounting will be very troublesome, that is, the problem that the above-mentioned supporting mode determines the dustproof and the convenience of dismounting is difficult to be solved at the same time.

In order to solve the problems of dust prevention and convenient disassembly and assembly, the technical means which can be conventionally adopted by the technical personnel in the field are as follows: 1. the dust cover structure is arranged outside the supporting structure, and then the installation structure of the dust cover is simplified as much as possible, for example, quick-release structures such as buckles are designed, so that the dust cover is quickly detached, but the temporary solution is not the primary solution, and although the dust prevention problem is solved, the improvement on the disassembly and assembly speed is very limited; 2. through the improvement of the large movement of the supporting structure, for example, in the power head structure of the cutter expanding disclosed in chinese patent document CN 109732384 a, the design of the sliding block and the sliding rail is eliminated, and the sliding cylinder seat, the large sliding cylinder and the small sliding cylinder are adopted as the supporting structure, so that the design can solve the above problems, but the structural improvement of the supporting structure, the manufacturing cost is obviously improved, and the cost control is not facilitated.

Disclosure of Invention

The invention aims to provide a cutter expanding power head aiming at the problems in the prior art, and solves the problems that the existing cutter expanding power head cannot give consideration to both dust prevention and convenience in disassembly and assembly.

The purpose of the invention can be realized by the following technical scheme: the utility model provides an exhibition sword unit head, includes the main shaft and is used for supporting the supporting seat of main shaft, its characterized in that, the supporting seat is provided with slide rail and a plurality of sliders of sliding connection on the slide rail in tube-shape and the supporting seat, it has outstanding installation department in the slide rail lateral wall to be provided with bearing frame and slider on the slider, link to each other through the fastener that passes the installation department between installation department and the bearing frame, the supporting seat is including the backup pad that is used for installing the slide rail, the equipment hole that runs through is seted up in the backup pad in the position relative.

In order to ensure that the power head of the cutter holder can take account of the problems of dust prevention and convenient disassembly and assembly, and distinguish the technical means adopted by the conventional method, the invention improves the power head on the basis of keeping a supporting structure formed by a sliding block, a sliding rail, a bearing seat and a supporting seat, and the specific improvement principle is as follows: the supporting seat is designed into a cylindrical structure, and the sliding rail, the sliding block, the bearing seat and the like are arranged in the cylindrical supporting seat, namely, through the design, the supporting seat not only has the most basic supporting function, but also has the function of protecting and preventing dust for the components arranged in the supporting seat; the invention solves the dustproof problem, and simultaneously designs an installation part protruding out of the side wall of the slide rail on the slide block, realizes the connection between the slide block and the bearing seat by penetrating a fastener I on the installation part, and then forms an assembly hole opposite to the fastener in position on a support plate for installing the slide rail by penetrating, namely, through the design, the fastener I is arranged opposite to the assembly hole without the blocking of the slide rail in the middle, so that the connection between the bearing seat and the slide block can be released only by extending a tool into the assembly hole and dismounting the fastener I, and after the releasing operation is completed, parts such as the bearing seat and the like can be conveniently dismounted along the axial direction only at the cylinder mouth of the support seat; by the above-mentioned dismantlement process analysis, through the cooperation design in installation department, fastener one and equipment hole, the dustproof processing of surrounding type like this of tube-shape supporting seat can not cause the hindrance to the dismantlement process, and the same reason also can not cause the hindrance to the equipment process certainly to guaranteed that this power head can also easy dismounting in effective dirt-proof.

In the above cutter unfolding power head, the assembling hole is in a long strip shape, and the length direction of the assembling hole is consistent with the length direction of the slide rail. Through above design, no matter what position the slider slides along the slide rail, the trend in equipment hole can provide all the time for stretching into of instrument and look for the direction for instrument can both be convenient stretch into the supporting seat from the equipment hole and dismantle fastener one, thereby be favorable to improving the convenience that the unit head was dismantled.

In foretell exhibition sword unit head, the installation department has the spigot surface that sets up towards the backup pad, the spigot surface is the arcwall face and from bottom to top gradually outside bending, offer on the installation department and supply the projection of connecting hole and connecting hole in the backup pad that the fastener was worn to establish to be covered by the projection of spigot surface in the backup pad. Through the above guide surface and the matching design of the guide surface and the connecting hole, the fastener I can rapidly penetrate into the connecting hole under the action of the guide surface to be assembled, and therefore convenience in assembly of the power head is improved.

In the above cutter-spreading power head, the guide surface is provided with a positioning groove, the positioning groove is provided with a straight groove bottom, and the connecting hole is formed in the groove bottom. Through the design, the positioning groove can assist the assembly of the first fastening piece and the alignment of the disassembling tool, so that the power head is more convenient to disassemble and assemble.

In foretell exhibition sword unit head, set up in the backup pad and supply the slide rail to inlay mounting groove and slide rail that establish and be located the mounting groove, the mounting groove includes the spacing face relative with slide rail both ends and the face of supporting of connecting two spacing faces, support to set up the cell wall and the spacing face smooth transition in the groove of stepping down and stepping down the groove in the department of linking to each other with spacing face. Through the design of above mounting groove, spacing face, support to face and the groove of stepping down, alignment location when the slide rail installation of being convenient for to be favorable to improving the equipment speed of unit head.

In the above cutter unfolding power head, the first fastening piece is a fastening screw, the diameter of the connecting hole is larger than the outer diameter of the first fastening piece, and the supporting seat is connected with the sliding rail through a second fastening piece penetrating through the supporting plate. Through the matching design of the fastening screw and the connecting hole, the fastening screw can quickly penetrate into the connecting hole without interference, so that the fastening screw is convenient to mount; in addition, the second fastening piece is designed to be disassembled and assembled outside the support plate, so that the slide rail can be conveniently fixed and disassembled.

In foretell exhibition sword unit head, the supporting seat includes the open main part in top and is located the dust guard of the open department of main part, the dust guard passes through the fastener three-phase with the main part and links firmly. Through the detachable design of the dust guard, the dust guard can not be installed in the initial assembly stage before leaving factory, so that the initial assembly of the parts in the supporting seat is very convenient, and after the installation, the dust guard is covered; certainly, when follow-up maintenance, when the inside dismouting of supporting seat meets the hindrance, also can be through dismantling above-mentioned dust guard for the dismouting of inside spare part of supporting seat is more convenient.

In foretell exhibition sword unit head, set up the maintenance mouth that sets up with the bearing frame is relative on the lateral wall of main part, can dismantle in the main part and be connected with the dustproof apron that covers the maintenance mouth. Through the design of the maintenance opening, the observation in the process of disassembly and assembly is facilitated, so that the convenience of disassembly and assembly is improved; moreover, tools can enter the supporting seat from the maintenance opening to carry out targeted maintenance operation on the components, so that the components in the supporting seat are not required to be disassembled one by one during small maintenance.

In foretell exhibition sword unit head, still set up at least one induction port that sets up with the bearing frame relatively in the main part, induction port department is provided with the inductive switch stationary blade, the mounting hole has been seted up in the main part, set up the adjustment tank corresponding with the mounting hole on the inductive switch stationary blade, the adjustment tank is rectangular form and length direction is unanimous with slide rail length direction, the proximity switch who is used for responding to the bearing frame position that corresponds with this induction port is linked firmly on the inductive switch stationary blade. Through the design of the induction port, the induction switch fixing sheet and the proximity switch, the position of the bearing seat in the supporting seat can be accurately obtained, so that the bearing seat and the sliding block can be aligned and connected conveniently, and the assembly of the bearing seat and the sliding block is more convenient; meanwhile, whether the cutter unfolding is in place or not can be determined by sensing whether the bearing seat reaches the designated position or not, so that the whole cutter unfolding power head can be adjusted and assembled conveniently; in addition, the design of the adjusting groove is convenient for debugging and installation of the fixed piece of the inductive switch.

In foretell exhibition sword unit head, exhibition sword unit head still includes the motor box that supplies the main shaft to wear to establish, be provided with outside convex connection turn-ups on the supporting seat, it pastes mutually with the motor box and pastes and connects turn-ups fastener four links to each other through passing between supporting seat and the motor box to connect the turn-ups. Through the design of connecting turn-ups and fastener four above, connect the turn-ups and regard as the location benchmark of supporting seat equipment for the equipment of supporting seat is more convenient.

Alternatively, the first fastener, the second fastener, the third fastener and the fourth fastener can be replaced by pins.

Compared with the prior art, the power head for the cutter expanding has the following advantages:

1. through the matched design of the structures such as the cylindrical supporting seat and the assembling hole, the power head of the cutter is good in dustproof effect and convenient to assemble and disassemble;

2. the power head of the cutter is kept in the existing supporting mode, the change range is small, the whole structure is simple, the manufacturing cost is low, and the cost control is facilitated.

Drawings

Fig. 1 is a schematic overall structure diagram of the power head of the present scalpel.

Fig. 2 is a cross-sectional view of the overall structure of the power head of the present scalpel.

Fig. 3 is a schematic structural view of a support seat part in the power head of the present spreader.

Fig. 4 is a schematic sectional view of a support seat portion of the power head of the present spreader.

Fig. 5 is a schematic structural diagram of a slide block in the power head of the present scalpel.

Fig. 6 is a schematic view of the first internal structure of the power head of the present spreader after the supporting seat is cut open.

Fig. 7 is a schematic view of the internal structure of the power head of the present spreader after the supporting seat is cut open.

Fig. 8 is an enlarged view of a portion of a structure at a in fig. 2.

In the figure, 1, main shaft; 2. a supporting seat; 21. a support plate; 211. assembling holes; 212. mounting grooves; 212a, a limiting surface; 212b, an abutment surface; 213. a yielding groove; 22. a main body; 221. a maintenance port; 222. an induction port; 223. mounting holes; 23. a dust-proof plate; 24. connecting the flanging; 3. a slide rail; 4. a slider; 41. an installation part; 411. a guide surface; 412. connecting holes; 413. positioning a groove; 5. a bearing seat; 6. a dust-proof cover plate; 7. an inductive switch stator; 71. an adjustment groove; 8. a motor box; 9. a pull rod.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Specifically, as shown in fig. 1, 2 and 8, the power head of the present spreader knife includes a main shaft 1, a pull rod 9 and a support base 2 for supporting the main shaft 1. Wherein, the supporting seat 2 is a tube-shape and is provided with a slide rail 3 and a plurality of slide blocks 4 connected on the slide rail 3 in the supporting seat 2, and the slide blocks 4 are provided with bearing seats 5. As shown in fig. 3 and 4, the slider 4 has a mounting portion 41 protruding from a side wall of the slide rail 3, the mounting portion 41 is connected to the bearing seat 5 by a first fastening member passing through the mounting portion 41, the support seat 2 includes a support plate 21 for mounting the slide rail 3, a through assembly hole 211 is formed in the support plate 21 at a position opposite to the first fastening member, and the assembly hole 211 is long and has a length direction consistent with a length direction of the slide rail 3. In this embodiment, the supporting plate 21 may be a part of the supporting seat 2, or may be a separate component constituting the supporting seat 2.

More specifically, as shown in fig. 5, the mounting portion 41 has a guide surface 411 disposed toward the support plate 21, the guide surface 411 is an arc surface and gradually bends toward the outside from bottom to top, a connection hole 412 for a fastener to pass through is disposed on the mounting portion 41, and a projection of the connection hole 412 on the support plate 21 is covered by a projection of the guide surface 411 on the support plate 21. The guide surface 411 is provided with a positioning groove 413, the positioning groove 413 is provided with a straight groove bottom, and the connecting hole 412 is formed in the groove bottom. In the embodiment, the first fastening member is a fastening screw, and the diameter of the connecting hole 412 is larger than the outer diameter of the first fastening member. As shown in fig. 6 and 7, the supporting plate 21 is provided with a mounting groove 212 for the slide rail 3 to be embedded, the slide rail 3 is located in the mounting groove 212, the mounting groove 212 includes a limiting surface 212a opposite to two ends of the slide rail 3 and an abutting surface 212b connecting the two limiting surfaces 212a, and the abutting surface 212b is provided with a yielding groove 213 at a connection position with the limiting surface 212a, and a groove wall of the yielding groove 213 and the limiting surface 212a are in smooth transition. And the support seat 2 is connected with the slide rail 3 through a second fastener passing through the support plate 21.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the supporting seat 2 includes a main body 22 with an open top and a dust-proof plate 23 located at the open top of the main body 22, and the dust-proof plate 23 is three-phase connected with the main body 22 by a fastener. The side wall of the main body 22 is provided with a maintenance opening 221 arranged opposite to the bearing seat 5, and the main body 22 is detachably connected with a dustproof cover plate 6 covering the maintenance opening 221. Still set up at least one and the relative response mouth 222 that sets up of bearing frame 5 on the main part 22, response mouth 222 department is provided with the inductive switch stationary blade 7, the mounting hole 223 has been seted up on the main part 22, set up the adjustment tank 71 corresponding with mounting hole 223 on the inductive switch stationary blade 7, adjustment tank 71 is rectangular form and length direction is unanimous with 3 length direction of slide rail, link firmly the proximity switch who is used for responding to 5 positions of bearing frame that correspond with this response mouth 222 on the inductive switch stationary blade 7. The cutter expanding power head further comprises a motor box 8 for the main shaft 1 to penetrate through, an outwards convex connecting flanging 24 is arranged on the supporting seat 2, the connecting flanging 24 is attached to the motor box 8, and the supporting seat 2 is connected with the motor box 8 through a fastener penetrating through the connecting flanging 24.

In addition, in this embodiment, the second fastener, the third fastener and the fourth fastener are preferably screws.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms of the spindle 1, the support seat 2, the support plate 21, the assembly hole 211, the mounting groove 212, the limiting surface 212a, the abutting surface 212b, the relief groove 213, the main body 22, the maintenance port 221, the sensing port 222, the mounting hole 223, the dust-proof plate 23, the connecting flange 24, the slide rail 3, the slider 4, the mounting portion 41, the guide surface 411, the connecting hole 412, the positioning groove 413, the bearing seat 5, the dust-proof cover plate 6, the sensing switch fixing piece 7, the adjusting groove 71, the motor case 8, the pull rod 9, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a exhibition sword unit head, includes main shaft (1) and supporting seat (2) that are used for supporting main shaft (1), its characterized in that, supporting seat (2) are the tube-shape and are provided with in supporting seat (2) slide rail (3) and a plurality of slider (4) of sliding connection on slide rail (3), it has installation department (41) outstanding in slide rail (3) lateral wall to be provided with bearing frame (5) and slider (4) on slider (4), link to each other through the fastener that passes installation department (41) between installation department (41) and bearing frame (5), supporting seat (2) are including backup pad (21) that are used for installing slide rail (3), equipment hole (211) that run through are seted up in backup pad (21) with a fastener relative position.

2. The power head for spreading knives according to claim 1, characterized in that the assembly hole (211) is long and the length direction is consistent with the length direction of the slide rail (3).

3. The power head for the expanding knife according to claim 2, wherein the mounting portion (41) is provided with a guide surface (411) arranged towards the support plate (21), the guide surface (411) is an arc-shaped surface and is gradually bent towards the outside from bottom to top, a connecting hole (412) for a fastener to penetrate is formed in the mounting portion (41), and the projection of the connecting hole (412) on the support plate (21) is covered by the projection of the guide surface (411) on the support plate (21).

4. The power head for spreading knives as claimed in claim 3, wherein the guiding surface (411) is formed with a positioning slot (413), the positioning slot (413) has a straight slot bottom, and the connecting hole (412) is formed on the slot bottom.

5. The power head for the spreading tool according to any one of claims 1 to 4, wherein a mounting groove (212) for the sliding rail (3) to be embedded is formed in the support plate (21), the sliding rail (3) is located in the mounting groove (212), the mounting groove (212) comprises a limiting surface (212a) opposite to two ends of the sliding rail (3) and a butting surface (212b) for connecting the two limiting surfaces (212a), and the butting surface (212b) is provided with a yielding groove (213) at a connecting position with the limiting surface (212a) and enables the groove wall of the yielding groove (213) to be in smooth transition with the limiting surface (212 a).

6. The power head for the cutter expanding according to claim 3, wherein the first fastener is a fastening screw, the diameter of the connecting hole (412) is larger than the outer diameter of the first fastener, and the supporting seat (2) is connected with the sliding rail (3) through a second fastener penetrating through the supporting plate (21).

7. The cutter expanding power head according to any one of claims 1 to 4, wherein the supporting seat (2) comprises a main body (22) with an open top and a dust-proof plate (23) positioned at the open top of the main body (22), and the dust-proof plate (23) is three-phase fixedly connected with the main body (22) through a fastener.

8. The power head for the spreading tool according to claim 7, wherein a maintenance opening (221) opposite to the bearing seat (5) is formed in the side wall of the main body (22), and a dustproof cover plate (6) covering the maintenance opening (221) is detachably connected to the main body (22).

9. The cutter expanding power head according to claim 8, wherein the main body (22) is further provided with at least one sensing port (222) opposite to the bearing seat (5), the sensing port (222) is provided with a sensing switch fixing plate (7), the main body (22) is provided with a mounting hole (223), the sensing switch fixing plate (7) is provided with an adjusting groove (71) corresponding to the mounting hole (223), the adjusting groove (71) is in a long strip shape, the length direction of the adjusting groove is consistent with the length direction of the sliding rail (3), and the sensing switch fixing plate (7) is fixedly connected with a proximity switch for sensing the position of the bearing seat (5) corresponding to the sensing port (222).

10. The power head for the exhibition knife according to any one of claims 1 to 4, characterized in that the power head for the exhibition knife further comprises a motor box (8) through which the spindle (1) is inserted, the support base (2) is provided with a connection flange (24) protruding outwards, the connection flange (24) is attached to the motor box (8) and the support base (2) is connected to the motor box (8) by a fastener passing through the connection flange (24).