Anti-falling structure suitable for disassembly and assembly of milling head

Abstract

The utility model discloses an anti-falling structure suitable for dismounting and mounting a milling head, which comprises a machine tool main shaft connecting plate, an anti-falling groove, a main shaft connecting plate and a main shaft connecting plate, wherein the end face of one side of the machine tool main shaft connecting plate is provided with; a horizontal mounting hole and a vertical mounting hole which are vertically communicated with each other are formed in the milling head; the anti-drop connecting assembly comprises a horizontal push rod arranged in the horizontal mounting hole, a vertical push rod arranged in the vertical mounting hole, an anti-drop block connected with one end, extending out of the outer side of the milling head, of the horizontal push rod, and an elastic piece arranged on the vertical push rod in a sleeving manner; an inclined sliding groove is formed in the side wall of the end, extending into the horizontal mounting hole, of the horizontal push rod, and a sliding block nut suitable for being inserted into the inclined sliding groove is arranged on the vertical push rod. The end, away from the horizontal push rod, of the anti-disengaging block is suitable for being inserted into the anti-disengaging groove in the horizontal direction. The head library is provided with a pin shaft with one end suitable for being matched with the vertical push rod set in an abutting mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to lathe technical field especially relates to a kind of anti-drop structure suitable for milling head disassembly. BACKGROUND

[0002] Lathe is mainly composed of bed, spindle, worktable, feed mechanism, milling cutter and other components. The bed is the basic support part, which ensures the stability of the whole machine tool. The spindle is used to install the milling cutter and drive it to rotate, providing the power required for cutting. The worktable is used to clamp workpieces and can realize feeding motion in different directions, making it convenient to process different parts of the workpiece. The feed mechanism controls the movement of the worktable and other components according to the set speed and stroke.

[0003] The assembly and connection of lathe and milling head are usually realized by two oil cylinders arranged in the spindle connecting plate to achieve the clamping and loosening function of C-axis. However, during the process of clamping or loosening the accessory milling head, faults in the hydraulic system or electrical system or human errors may occur, which may cause the accessory milling head to fall off.

[0004] Based on the above situation, the anti-drop mechanism for disassembly and assembly of milling head disclosed in the publication No. CN 215919192 U includes an upper seat pad for interfacing with the end of the lathe spindle and a lower seat pad for interfacing with the milling head. It also includes a pair of anti-drop mechanisms, which include an upper block fixedly installed on the end of the side wall of the upper seat pad, a lower block fixedly installed on the end of the side wall of the lower seat pad, and a hook plate. The hook plate is rotatably installed on the side wall of the lower seat pad through a core shaft. The upper end of the hook plate is bent and extended to the right to form a hook portion. A hook groove is formed on the upper block to cooperate with the hook portion. The lower block is provided with a spring mechanism for pushing the lower end of the hook plate. Under the action of the spring force, the left end of the horizontal shaft presses against the lower end of the hook plate, and the hook plate rotates around the core shaft, so that the hook portion at the upper end of the hook plate is embedded in the hook groove, thereby achieving safe self-locking of the milling head. Even if the hydraulic system of the puller cylinder mechanism fails, the puller cylinder mechanism will no longer clamp the puller pin, and the milling head will not fall off at this time.

[0005] For the above-mentioned disclosed technology, although the effect of preventing the milling head from falling off can be achieved, when the milling head needs to be disassembled, the vertical telescopic cylinder drives the top rod to rise, the top rod presses against the hook plate inclined wall at the lower end of the hook plate, which can make the hook plate rotate around the core shaft. Then, the hook portion is separated from the hook groove. For this purpose, telescopic cylinder is used as power to realize the disassembly of the milling head. The use of cylinder needs to configure corresponding gas circuit, so the overall structure is not simplified enough.

[0006] In summary, for the disassembly and assembly structure for preventing the milling head from falling off in the prior art, further optimization is needed to simplify the use process. UTILITY MODEL CONTENTS

[0007] The utility model discloses a kind of anti-drop structures suitable for milling head disassembly and assembly, to solve the technical problem that the simplicity of structure and the anti-drop of milling head are considered.

[0008] The anti-drop structure suitable for milling head disassembly and assembly is implemented as follows:

[0009] A kind of anti-drop structure suitable for milling head disassembly and assembly, comprising:

[0010] Machine tool spindle connecting plate, its one side end surface is equipped with anti-drop groove;

[0011] Milling head, its inside is equipped with vertical and connected horizontal mounting hole and vertical mounting hole;

[0012] Anti-drop connecting assembly, it includes horizontal push rod arranged in horizontal mounting hole, vertical push rod arranged in vertical mounting hole, anti-drop block connected with the end of horizontal push rod protruding outside milling head, and elastic member sleeved on vertical push rod;Wherein the end of horizontal push rod inserted into the sidewall of horizontal mounting hole is equipped with inclined sliding groove, and the vertical push rod is equipped with sliding block nut suitable for inserting into inclined sliding groove;The end of anti-drop block away from horizontal push rod is suitable for inserting into anti-drop groove along horizontal direction;

[0013] Head library, it is equipped with pin shaft, one end of which is suitable for abutting cooperation with vertical push rod;

[0014] When the pin shaft pushes vertical push rod to make vertical push rod move upwards, elastic member is compressed and deformed, and the horizontal push rod is suitable for moving to the outside of milling head to make anti-drop block separate from anti-drop groove;

[0015] When the pin shaft removes the push of vertical push rod, vertical push rod moves downward under the action of elastic force of elastic member, and the horizontal push rod is suitable for moving to the inside of milling head to make anti-drop block insert into anti-drop groove.

[0016] In the optional implementation of the utility model, the anti-drop block and the horizontal push rod are L-shaped cooperation.

[0017] In the optional implementation of the utility model, the anti-drop block has connecting hole for matching with horizontal push rod;And

[0018] The connecting hole is a waist-shaped hole.

[0019] In the optional implementation of the utility model, the end of anti-drop block away from horizontal push rod is L-shaped hook head, and the L-shaped hook head is suitable for inserting into anti-drop groove.

[0020] In the optional implementation of the utility model, the end of inclined sliding groove towards the hole bottom of horizontal mounting hole is above the end of inclined sliding groove away from the hole bottom of horizontal mounting hole.

[0021] In the optional implementation of the utility model, the vertical mounting hole is matched with a support cover at one end far from the horizontal mounting hole.

[0022] The support cover has a through hole communicating with the vertical mounting hole.

[0023] In the optional implementation of the utility model, the vertical push rod is matched with a sliding shaft adapted to be partially inserted into the through hole at one end far from the horizontal push rod.

[0024] In the optional implementation of the utility model, the sliding shaft comprises a cylindrical portion adapted to be inserted into the through hole, and a ring-shaped portion connected to one end of the cylindrical portion.

[0025] The ring-shaped portion is adapted to abut against the inner side of the support cover facing the vertical mounting hole.

[0026] The pin shaft is adapted to abut against one end of the cylindrical portion far from the ring-shaped portion.

[0027] In the optional implementation of the utility model, the elastic member is a rectangular spring.

[0028] One end of the rectangular spring abuts against the end face of the ring-shaped portion far from the pin shaft.

[0029] In the optional implementation of the utility model, one end of the pin shaft far from the vertical push rod is connected to the head library through a lock nut.

[0030] The above technical scheme has the following beneficial effects: the anti-falling structure of the utility model for milling head disassembly is used for adjusting the disassembly effect of the anti-falling block and the anti-falling groove. In the process, the lifting movement of the vertical push rod does not need to be specially provided with power such as a cylinder to be realized, but directly generates the thrust for the vertical push rod through the pin shaft connected to the head library in the process of the milling head slowly falling away from the main shaft of the machine tool, so that the overall structure can be simplified, and the disassembly process is simplified. BRIEF DESCRIPTION OF DRAWINGS

[0031] Fig. 1 It is a whole structure schematic view of the anti-falling structure for milling head disassembly of embodiment 1.

[0032] Fig. 2 It is a sectional structure schematic view of the anti-falling structure for milling head disassembly of embodiment 1 in the engaged state of the anti-falling block and the anti-falling groove.

[0033] Fig. 3A cross-sectional structure diagram of a disengagement state of the anti-falling block and the anti-falling groove corresponding to the anti-falling structure suitable for disassembling the milling head of the embodiment 1.

[0034] In the figure: machine tool spindle connecting plate 1, milling head 2, head library 3, anti-falling block 4, L-shaped hook head 5, horizontal push rod 6, sliding block nut 7, vertical push rod 8, rectangular spring 9, support cover 10, sliding shaft 11, cylindrical part 111, annular part 112, pin shaft 12, lock nut 13, anti-falling groove 14, inclined sliding groove. DETAILED DESCRIPTION

[0035] In order to make the content of the utility model more easily be clearly understood, the following according to specific embodiment and combining with the drawings, the utility model is further detailed.

[0036] Please refer to Figs. 1 to 3 As shown in the figure, the embodiment provides an anti-falling structure suitable for disassembling the milling head 2, which comprises: machine tool spindle connecting plate 1, milling head 2, head library 3 and anti-falling connecting assembly.

[0037] Specifically, first, the side end face of the machine tool spindle connecting plate 1 is provided with the anti-falling groove 14; the inside of the milling head 2 is provided with horizontal installation hole and vertical installation hole connected vertically. The end face of the head library 3 towards the milling head 2 is provided with pin shaft 12 extending along the vertical direction, and the pin shaft 12 is connected with the head library 3 through the lock nut 13. It should be noted that one end of the horizontal installation hole and the vertical installation hole respectively extends to two different side end faces of the machine tool spindle connecting plate 1.

[0038] Secondly, for the anti-falling connecting assembly used in the embodiment, it comprises horizontal push rod arranged in the horizontal installation hole, vertical push rod 8 arranged in the vertical installation hole, anti-falling block 4 connected with the end of the horizontal push rod extending outside the milling head 2, and elastic element sleeved on the vertical push rod 8. One end of the horizontal push rod extending into the horizontal installation hole is provided with inclined sliding groove 15 on the side wall, and the vertical push rod 8 is provided with sliding block nut 7 adapted to be inserted into the inclined sliding groove 15; one end of the anti-falling block 4 away from the horizontal push rod is adapted to be inserted into the anti-falling groove 14 along the horizontal direction. On this basis, one end of the pin shaft 12 is adapted to abut with the vertical push rod 8.

[0039] On the basis of the above structure, more specifically, the end of the inclined sliding groove 15 towards the hole bottom of the horizontal mounting hole is above the end of the inclined sliding groove 15 away from the hole bottom of the horizontal mounting hole (the orientation of "up" and "down" here is in the perspective that the machine tool main shaft connecting plate 1 is up and the milling head 2 is down). Based on this, for the horizontal push rod and the vertical push rod 8, through the cooperation of the inclined sliding groove 15 and the sliding block nut 7, the vertical movement of the vertical push rod 8 is converted into the horizontal movement of the horizontal push rod. When the pin shaft 12 pushes the vertical push rod 8 to move upward, the elastic member is compressed and deformed, and the horizontal push rod is adapted to move outward of the milling head 2 to make the anti-falling block 4 disengage from the anti-falling groove 14; when the pin shaft 12 releases the pushing of the vertical push rod 8, the vertical push rod 8 moves downward under the action of the elastic force of the elastic member, and the horizontal push rod is adapted to move inward of the milling head 2 to make the anti-falling block 4 inserted into the anti-falling groove 14.

[0040] Based on the above, it is also necessary to point out that the anti-falling block 4 of the present embodiment cooperates with the horizontal push rod in an L shape. The end of the anti-falling block 4 away from the horizontal push rod is an L-shaped hook head 55, which is adapted to be inserted into the anti-falling groove 14.

[0041] In addition, in an alternative implementation, the anti-falling block 4 has a connecting hole for mating with the horizontal push rod; and the connecting hole is a waist-shaped hole, and correspondingly, a waist-shaped end head adapted to the waist-shaped hole is provided on the horizontal push rod. Specifically, the upper end edge and the lower edge of the waist-shaped hole along the direction of the vertical movement of the vertical push rod 8 are both flat surfaces, and through the cooperation of the waist-shaped hole, the anti-falling block 4 can be prevented from producing unintended left and right swinging phenomena during the process of being inserted into and separated from the anti-falling groove 14 along with the horizontal movement of the horizontal push rod.

[0042] In addition, it is also necessary to point out that in the present embodiment, the end of the vertical mounting hole away from the horizontal mounting hole is matched with the support cover 10; the support cover 10 has a through hole communicating with the vertical mounting hole. The end of the vertical push rod 8 away from the horizontal push rod is matched with a sliding shaft 11 adapted to be partially inserted into the through hole. In combination with an example of an alternative implementation, the sliding shaft 11 includes a columnar portion 111 adapted to be inserted into the through hole, and a ring-shaped portion 112 connected to one end of the columnar portion 111; the ring-shaped portion 112 is adapted to abut against the inner side of the support cover 10 towards the vertical mounting hole; and the pin shaft 12 is adapted to abut against the end of the columnar portion 111 away from the ring-shaped portion 112.

[0043] Furthermore, the elastic member is a rectangular spring 9; and one end of the rectangular spring 9 abuts against the end surface of the ring-shaped portion 112 away from the pin shaft 12.

[0044] In summary, regarding the anti-falling structure suitable for disassembly and assembly of the milling head 2 of the present embodiment, the milling head 2 is clamped and installed on the end face of the machine tool spindle connecting plate 1 by two oil cylinders when working, at this time the sliding shaft 11 is tightly attached to the support cover 10 under the pre-pressing action of the rectangular spring 9, the length of the cylindrical part 111 of the sliding shaft 11 extending outside the machine tool spindle connecting plate 1 is H (as shown in Fig. 2 At this time, the L-shaped hook head 55 of the anti-falling block 4 is engaged with the anti-falling groove 14 on the spindle connecting plate, and the depth of the L-shaped hook head 55 inserted into the anti-falling groove 14 is h (H > h), at this time, through the engagement of the anti-falling block 4 and the anti-falling groove 14, even if there are system errors or human operation errors, etc. The milling head 2 will not fall off the machine tool spindle connecting plate 1, and the effect of preventing the milling head 2 from falling off is achieved. When the right-angle head needs to be placed on the head library 3 after the work is completed, the end face of the pin shaft 12 will be attached to the end face of the sliding short shaft, and the pin shaft 12 will push the sliding shaft 11 upward, that is, the vertical push rod 8 and the sliding block nut 7 will move upward by H, and due to the cooperation of the sliding block nut 7 and the inclined sliding groove 15 on the horizontal push rod, at this time, it also means that the horizontal push rod will drive the anti-falling block 4 to move outward of the machine tool spindle connecting plate 1 by H under the action of the sliding block nut 7, thereby achieving the effect of disengaging the anti-falling block 4 from the anti-falling groove 14 on the spindle connecting plate, and the milling head 2 falls safely (as shown in Fig. 3 During this process, the inclined sliding groove 15 on the horizontal push rod and the sliding block nut 7 on the vertical push rod 8 form a pair of motion pairs. If the anti-falling block 4 has insufficient or excessive stroke during disengagement from the anti-falling groove 14, the installation height of the lock nut 13 and the pin shaft 12 in the head library 3 can be appropriately adjusted to meet the required stroke. When the milling head 2 needs to work again and is clamped by the spindle, it rises and disengages from the head library 3, the sliding shaft 11 is reset to the position extending by H by the elastic force generated by the rectangular spring 9, and the horizontal push rod, the vertical push rod 8 and the anti-falling block 4 move synchronously, the anti-falling block 4 is re-engaged with the anti-falling groove 14 on the spindle connecting plate to prevent the milling head 2 from falling off.

[0045] The above specific embodiments further illustrate the purpose, technical scheme and advantages of the present application, and it should be understood that the above is only a specific embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0046] In the description of the present application, it should be understood that the terms indicating the position or relationship are based on the position or relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application.

[0047] In the present application, unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In the description of the present application, it should be pointed out that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0049] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0050] In the present application, unless otherwise expressly specified and limited, the first feature above or below the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature above, above and above the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature below, below and below the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

Claims

1. A structure for preventing the detachment of a milling head during assembly and disassembly, characterized in that, include: The machine tool spindle connecting plate has an anti-disengagement groove on one end face; The milling head has a horizontal mounting hole and a vertical mounting hole that are vertically connected inside. An anti-detachment connection assembly includes a horizontal push rod disposed in a horizontal mounting hole, a vertical push rod disposed in a vertical mounting hole, an anti-detachment block connected to one end of the horizontal push rod extending outside the milling head, and an elastic element sleeved on the vertical push rod; wherein the side wall of the end of the horizontal push rod extending into the horizontal mounting hole is provided with an inclined groove, and the vertical push rod is provided with a slider nut adapted to be inserted into the inclined groove; the end of the anti-detachment block away from the horizontal push rod is adapted to be inserted into the anti-detachment groove in a horizontal direction; The headstock has a pin at one end that is adapted to engage with the vertical push rod assembly; When the pin pushes the vertical push rod to make the vertical push rod move upward, the elastic element is compressed and deformed, and the horizontal push rod is adapted to move outward of the milling head to make the anti-detachment block disengage from the anti-detachment groove. When the pin releases its push on the vertical push rod, the vertical push rod moves downward under the elastic force of the elastic element, and the horizontal push rod is adapted to move inward to the milling head so that the anti-detachment block is inserted into the anti-detachment groove.

2. The anti-detachment structure for milling head assembly and disassembly according to claim 1, characterized in that, The anti-detachment block and the horizontal push rod are L-shaped.

3. The anti-detachment structure for milling head assembly and disassembly according to claim 1 or 2, characterized in that, The anti-detachment block has a connection hole for mating with a horizontal push rod; and The connecting hole is an oblong hole.

4. The anti-detachment structure for milling head assembly and disassembly according to claim 1 or 2, characterized in that, The end of the anti-detachment block away from the horizontal push rod is an L-shaped hook, which is suitable for insertion into the anti-detachment groove.

5. The anti-detachment structure for milling head assembly and disassembly according to claim 1 or 2, characterized in that, The end of the inclined slide groove facing the bottom of the horizontal mounting hole is located above the end of the inclined slide groove that is away from the bottom of the horizontal mounting hole.

6. The anti-detachment structure for milling head assembly and disassembly according to claim 1 or 2, characterized in that, A support cap is fitted to the end of the vertical mounting hole that is away from the horizontal mounting hole; The support cover has a through hole that connects to the vertical mounting hole.

7. The anti-detachment structure for milling head assembly and disassembly according to claim 6, characterized in that, The end of the vertical push rod away from the horizontal push rod is fitted with a sliding shaft suitable for partial insertion into the through hole.

8. The anti-detachment structure for milling head assembly and disassembly according to claim 7, characterized in that, The sliding shaft includes a columnar portion adapted to be inserted into a through hole, and an annular portion connected to one end of the columnar portion; The annular portion is adapted to abut against the inner side of the support cover facing the vertical mounting hole; and The pin is adapted to abut against the end of the columnar portion away from the annular portion.

9. The anti-detachment structure for milling head assembly and disassembly according to claim 8, characterized in that, The elastic element is a rectangular spring; and One end of the rectangular spring abuts against the end face of the annular portion away from the pin.

10. The anti-detachment structure for milling head assembly and disassembly according to claim 1, characterized in that, The end of the pin furthest from the vertical push rod is connected to the headstock via a lock nut.

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