Five-axis head C-axis rotation limiting mechanism, five-axis swing head and five-axis machine tool

Abstract

The invention discloses a five-axis head C-axis rotation limiting mechanism, a five-axis swing head and a five-axis machine tool, and relates to the technical field of machining equipment. In the limiting mechanism, a driven piece is rotatably arranged on a supporting assembly and is used for being in transmission connection with a C shaft of the five-shaft swinging head; the first end of the third induction piece is rotatably arranged on the supporting assembly, and the rotating center line of the third induction piece is parallel to the rotating center line of the driven piece; the second end of the driven piece is provided with a spiral guide part, the third induction piece is provided with a linkage piece, and the linkage piece is inserted into the spiral guide part in a sliding mode; the over-limit sensor is located on the side face of the third sensing piece and used for sensing the second end of the third sensing piece so as to detect whether the C axis in the five-axis swing head rotates within the preset angle range or not. The controller is in signal connection with the over-limit sensor and used for being in signal connection with a driving device driving the C shaft to rotate so as to control starting and stopping of the driving device according to the sensing result of the over-limit sensor, and the limiting mechanism can effectively avoid excessive winding of a pipeline in the five-shaft swing head.

Description

Technical Field

[0001] The present application relates to the technical field of processing equipment, and more specifically, to a five-axis head C-axis rotation limiting mechanism. In addition, the present invention also relates to a five-axis swing head including the above-mentioned five-axis head C-axis rotation limiting mechanism. Furthermore, the present invention also relates to a five-axis machine tool including the above-mentioned five-axis swing head. Background Art

[0002] The five-axis swing head is the core component of the five-axis machine tool. Usually, it is provided with X-axis, Y-axis and Z-axis, and is swing-mounted on one of the X-axis, Y-axis and Z-axis so that the swing head can be driven to move along the X-axis, Y-axis and Z-axis through the X-axis, Y-axis and Z-axis. The swing head itself is provided with A-axis and C-axis, and the processing tools can be controlled to rotate around the A-axis and C-axis respectively to realize five-axis processing.

[0003] When the swing head rotates around the C-axis, the cables and pipes inside the swing head will rotate synchronously. However, the continuous rotation of the swing head in the same direction around the C-axis will cause the internal pipes of the swing head to be entangled or even damaged.

[0004] In summary, how to avoid excessive winding of the internal pipelines of the swing head is an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0005] In view of this, the purpose of the present application is to provide a five-axis head C-axis rotation limiting mechanism, which can effectively prevent excessive winding of the internal pipelines of the swing head.

[0006] Another object of the present invention is to provide a five-axis swing head including the above-mentioned five-axis head C-axis rotation limiting mechanism.

[0007] Another object of the present invention is to provide a five-axis machine tool including the above-mentioned five-axis swing head.

[0008] In order to achieve the above object, the present invention provides the following technical solutions:

[0009] A five-axis head C-axis rotation limiting mechanism, comprising: a support assembly, a driven member, a third sensing member, an over-limit sensor and a controller;

[0010] The driven member is rotatably arranged on the supporting assembly and is used for transmission connection to the C axis of the five-axis swing head;

[0011] The first end of the third induction member is rotatably disposed on the support assembly, and the rotation centerline of the third induction member is parallel to the rotation centerline of the driven member;

[0012] The second end of the driven member has a spiral guide portion, the spiral guide portion extends and spirals around the rotation center line of the driven member, the third induction member is provided with a linkage member, and the linkage member is slidably inserted in the spiral guide portion;

[0013] The over-limit sensor is located on the side of the third sensing element, and is used to sense the second end of the third sensing element to detect whether the C-axis of the five-axis swing head rotates within a preset angle range;

[0014] The controller signal is connected to the over-limit sensor, and the controller is used to signal connect to a driving device that drives the C-axis in the five-axis swing head to rotate, so as to control the start and stop of the driving device according to the sensing result of the over-limit sensor.

[0015] Preferably, it also includes a first induction element, a second induction element, a forward induction element, and a reverse induction element.

[0016] The spiral guide portion is located at the second end of the driven member, and the first induction member and the second induction member are both arranged at the first end of the driven member;

[0017] The forward sensor and the reverse sensor are both arranged on the support assembly, and the forward sensor is used to sense the first sensing element, and is used to detect whether the C axis of the five-axis swing head is rotated in the forward direction to the forward limit angle, and the reverse sensor is used to sense the second sensing element, and is used to detect whether the C axis of the five-axis swing head is rotated in the reverse direction to the reverse limit angle;

[0018] The controller is connected to the forward sensor and the reverse sensor signals, and is used to control the start and stop of the driving device according to the sensing results of the forward sensor and the reverse sensor.

[0019] Preferably, the forward sensor, the reverse sensor and the over-limit sensor are all proximity switches.

[0020] Preferably, the third induction element is a C-shaped block structure;

[0021] The middle block section of the third induction member has a first mounting hole, a first bearing is sleeved inside the first mounting hole, a first end of the linkage member is inserted into the first mounting hole, and a second end is slidably inserted into the spiral guide portion.

[0022] Preferably, it further comprises a limiting rod, the first end of the third sensing element has a second mounting hole, the interior of the second mounting hole is sleeved with a second bearing, the limiting rod is inserted into the interior of the second bearing, and the third sensing element is rotatably arranged on the supporting assembly through the limiting rod;

[0023] It also includes a connecting rod, a first washer tube, a second washer tube and a third bearing, and the support assembly includes a base and a carrier;

[0024] The connecting rod and the third sensing element are both arranged on the base, one end of the connecting rod is fixed to the base, and the moving element is fixed to the other end of the connecting rod;

[0025] The first washer tube, the third bearing and the second washer tube are sleeved on the outside of the connecting rod along the length direction of the connecting rod, the follower is sleeved on the outside of the third bearing, and the forward sensor and the reverse sensor are both arranged on the carrier.

[0026] Preferably, it also includes a first fastener, a second fastener, a shaft retaining ring and a first gasket;

[0027] One end of the connecting rod is fixed to the supporting assembly by a first fastener, and the carrier is fixed to the other end of the connecting rod by a second fastener;

[0028] The shaft retaining ring and the first gasket are both sleeved on the outside of the connecting rod, and the shaft retaining ring is clamped between the third bearing and the second gasket tube, and the first gasket is clamped between the second fastener and the carrier.

[0029] Preferably, the distance between one of the first induction member and the second induction member and the rotation centerline of the driven member is greater than the distance between the other and the rotation centerline of the driven member, and a line connecting the first induction member and the second induction member has a non-zero angle with the rotation centerline of the driven member.

[0030] Preferably, it also includes a driving wheel and a synchronous belt, the driven member is a gear structure, the synchronous belt is meshed and transmitted to the driven member and the driving wheel, and the driving wheel is used for coaxial and transmission sleeve on the C axis of the five-axis swing head.

[0031] A five-axis swing head comprises the five-axis head C-axis rotation limiting mechanism described in any one of the above items.

[0032] A five-axis machine tool comprises the above-mentioned five-axis swing head.

[0033] The five-axis head C-axis rotation limiting mechanism provided by the present invention has a support component for installing and supporting a driven member, a first sensing member, a second sensing member, a forward sensor, a reverse sensor, etc.; the driven member can be rotatably arranged on the support component, and is used to transmit and connect the C-axis of the five-axis swing head, so that the driven member can rotate under the drive of the C-axis; one end of the third sensing member is rotatably connected to the support component, and the rotation center line of the third sensing member and the rotation center line of the driven member are parallel to each other, and a linkage member is installed on the side of the third sensing member close to the driven member, and a spiral channel is provided at the end of the driven member close to the third sensing member as a spiral guide part, and the free end of the linkage member is inserted in the spiral guide part so as to guide the synchronous rotation of the third sensing member through the rotation of the driven member.

[0034] Furthermore, an over-limit sensor is installed on the supporting assembly on the side of the third sensing member. When the third sensing member reciprocates within a preset angle range, the over-limit sensor can sense the free end of the third sensing member. Usually, the C-axis of the five-axis swing head is configured with a driving device to drive the rotation of the C-axis. In order to control the C-axis to rotate forward or reversely within the preset angle range, the over-limit sensor is connected through a controller signal to determine whether the C-axis rotates forward or reversely within the preset angle range based on the sensing result of the over-limit sensor, and the controller signal is connected to the above-mentioned driving device to control the start or stop of the driving device, so as to control the above-mentioned driving device to stop when the C-axis rotates beyond the preset angle range, so as to avoid excessive winding of the internal pipelines of the swing head. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0036] Figure 1 A top view of a specific embodiment provided by the present invention;

[0037] Figure 2 A schematic diagram of the structure of a specific embodiment provided by the present invention;

[0038] Figure 3 An exploded view of a specific embodiment provided by the present invention;

[0039] Figure 4 A schematic diagram of the structure of a carrier, a forward sensor and a reverse sensor according to a specific embodiment of the present invention;

[0040] Figure 5 A cross-sectional view of a specific embodiment provided by the present invention;

[0041] Figure 6 A schematic structural diagram of a third induction element, a first bearing and a second bearing according to a specific embodiment of the present invention;

[0042] Figure 7 A bottom view of a follower according to a specific embodiment of the present invention.

[0043] Reference numerals:

[0044] 1-support assembly; 101-base; 102-carrier; 2-driven member; 201-spiral guide; 3-first induction member; 4-second induction member; 5-forward induction sensor; 6-reverse induction sensor; 7-third induction member; 8-overlimit induction sensor; 9-linkage member; 10-first bearing; 11-limit rod; 12-second bearing; 13-connecting rod; 14-first washer; 15-second washer; 16-third bearing; 17-first fastener; 18-second fastener; 19-shaft retaining ring; 20-first gasket; 21-driving wheel; 22-synchronous belt; 23-nut; 24-second gasket. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] The core of this application is to provide a five-axis head C-axis rotation limiting mechanism, which can effectively prevent excessive winding of the internal pipelines of the five-axis swing head. Another core of the present invention is to provide a five-axis swing head including the above-mentioned five-axis head C-axis rotation limiting mechanism. Another core of the present invention is to provide a five-axis machine tool including the above-mentioned five-axis swing head.

[0047] Please refer to Figures 1 to 7 The present invention provides a five-axis head C-axis rotation limiting mechanism, comprising a support assembly 1, a follower 2, a third sensing member 7, an over-limit sensor 8 and a controller; wherein the follower 2 is rotatably arranged on the support assembly 1, and is used for transmission connection to the C-axis of the five-axis swing head; the first end of the third sensing member 7 is rotatably arranged on the support assembly 1, and the rotation center line of the third sensing member 7 is parallel to the rotation center line of the follower 2; the second end of the follower 2 has a spiral guide part 201, and the spiral guide part 201 extends and spirals around the rotation center line of the follower 2, and the third sensing member 7 is provided with a linkage member 9, and the linkage member 9 is slidably inserted in the spiral guide part 201; the over-limit sensor 8 is located on the side of the third sensing member 7, and is used to sense the second end of the third sensing member 7, so as to detect whether the C-axis in the five-axis swing head rotates within a preset angle range; the controller signal is connected to the over-limit sensor 8, and the controller is used to signally connect to a driving device for driving the C-axis in the five-axis swing head to rotate, so as to control the start and stop of the driving device according to the sensing result of the over-limit sensor 8.

[0048] The support assembly 1 can adopt a block structure or a frame structure, etc., to install and support the driven member 2, the first induction member 3, the second induction member 4, the forward induction member 5, the reverse induction member 6, etc.

[0049] The follower 2 can be rotatably set on the support assembly 1 and used to transmit the C-axis connected to the five-axis swing head. The follower 2 can rotate under the drive of the C-axis. It should be noted that the type of the follower 2 is not limited as long as it can avoid interfering with the movement of the five-axis swing head while receiving the movement of the C-axis. For example, the follower 2 can adopt a pulley or a spur gear.

[0050] The left end of the third sensing member 7 is rotatably connected to the support assembly 1, and the rotation center lines of the third sensing member 7 and the driven member 2 extend vertically and are parallel to each other, and a linkage member 9 is installed on the upper side of the third sensing member 7 close to the driven member 2. The linkage member 9 can adopt a rod-shaped structure or a needle-shaped structure, etc., and correspondingly, a spiral channel is opened at the lower end of the driven member 2 close to the third sensing member 7 as a spiral guide part 201, and the upper end of the linkage member 9 is inserted in the spiral guide part 201, so as to guide the synchronous rotation of the third sensing member 7 through the rotation of the driven member 2.

[0051] Furthermore, on the side of the third sensing member 7, an over-limit sensor 8 is installed on the support assembly 1. When the third sensing member 7 reciprocates within the preset angle range, the over-limit sensor 8 can sense the right end of the third sensing member 7. Usually, the C-axis of the five-axis swing head is configured with a driving device to drive the rotation of the C-axis. In order to control the C-axis to rotate forward or reversely within the preset angle range, for example, -40° to 40°, the over-limit sensor 8 is connected through a controller signal to determine whether the C-axis rotates forward or reversely within the preset angle range according to the sensing result of the over-limit sensor 8, and the controller signal is connected to the above-mentioned driving device to control the start or stop of the driving device, so as to control the above-mentioned driving device to stop when the C-axis rotates beyond the preset angle range, so as to avoid excessive winding of the internal pipelines of the swing head.

[0052] Please refer to Figures 1 to 5 , on the basis of the above embodiment, it also includes a first sensing member 3, a second sensing member 4, a forward sensor 5, and a reverse sensor 6. The spiral guide part 201 is located at the second end of the driven member 2, and the first sensing member 3 and the second sensing member 4 are both arranged at the first end of the driven member 2; the forward sensor 5 and the reverse sensor 6 are both arranged on the support assembly 1, and the forward sensor 5 is used to sense the first sensing member 3, and is used to detect whether the C axis in the five-axis swing head rotates in the forward direction to the positive limit angle, and the reverse sensor 6 is used to sense the second sensing member 4, and is used to detect whether the C axis in the five-axis swing head rotates in the reverse direction to the reverse limit angle, and the forward limit angle is greater than the positive limit of the preset angle range, and the reverse limit angle is less than the negative limit of the preset angle range; the controller is connected to the forward sensor 5 and the reverse sensor 6 signals to control the start and stop of the drive device according to the sensing results of the forward sensor 5 and the reverse sensor 6.

[0053] A first sensing member 3 and a second sensing member 4 are also installed on the driven member 2, and a forward sensor 5 and a reverse sensor 6 are installed on the support assembly 1 in coordination therewith. The forward sensor 5 can sense the first sensing member 3 correspondingly, and similarly, the reverse sensor 6 can sense the second sensing member 4 correspondingly. The controller signal connects the first sensing member 3 and the second sensing member 4, so as to determine whether the C-axis rotates in the forward direction to the forward limit angle or in the reverse direction to the reverse limit angle according to the sensing results of the first sensing member 3 and the second sensing member 4, so as to control the above-mentioned driving device to stop. For example, when the C-axis rotates 360° clockwise, the forward sensor 5 senses the first sensing member 3, thereby controlling the C-axis to stop rotating through the controller. Conversely, when the C-axis rotates 360° counterclockwise, the reverse sensor 6 senses the second sensing member 4, thereby controlling the C-axis to stop rotating through the controller.

[0054] It should be noted that the arrangement of the first sensing element 3 and the second sensing element 4 is not limited as long as the above-mentioned functions can be achieved. For example, the first sensing element 3 and the second sensing element 4 are arranged radially in a colinear manner with the follower 2, and the connection direction of the forward sensor 5 and the reverse sensor 6 has a non-zero angle with the connection direction of the first sensing element 3 and the second sensing element 4. Therefore, when the forward sensor 5 senses the first sensing element 3, the reverse sensor 6 cannot sense the second sensing element 4.

[0055] After the controller receives the sensing signal of the over-limit sensor 8, regardless of whether the sensing signal of the forward sensor 5 and the reverse sensor 6 is received, the sensing signal of the over-limit sensor 8 is used as the main signal. The start and stop of the C-axis is controlled according to the sensing signal of the over-limit sensor 8, so as to avoid the C-axis of the five-axis swing head from rotating beyond the preset angle range; and when the sensing signal of the over-limit sensor 8 is not received, after receiving the sensing signal of the forward sensor 5 or the reverse sensor 6, the start and stop of the C-axis is controlled according to the sensing signal of the forward sensor 5 or the reverse sensor 6, so as to avoid the C-axis of the five-axis swing head from rotating beyond the limit angle).

[0056] With this setting, the start and stop of the C-axis are comprehensively controlled through three sensors, with simple control logic and fast response speed.

[0057] It should be noted that the types of the forward sensor 5 , the reverse sensor 6 and the over-limit sensor 8 are not limited, as long as they can correspond to the first sensor 3 , the second sensor 4 and the third sensor 7 . For example, an inductive photoelectric switch can be used.

[0058] refer to Figures 1 to 5 , based on the above embodiment, the forward sensor 5, the reverse sensor 6 and the over-limit sensor 8 are all proximity switches.

[0059] refer to Figure 2 , Figure 3 and Figure 6 On the basis of the above embodiment, the third sensing member 7 is a C-shaped block structure; the middle block section of the third sensing member 7 has a first mounting hole, the interior of the first mounting hole is sleeved with a first bearing 10, the first end of the linkage member 9 is inserted in the first mounting hole, and the second end is slidably inserted in the spiral guide portion 201.

[0060] A vertical through hole is opened in the middle position of the C-shaped third sensing component 7 as a first mounting hole, and a first bearing 10 is inserted in the first mounting hole. The first bearing 10 is fixed in the first mounting hole of the third sensing component 7 by interference fit of the outer ring. The linkage component 9 passes through the center hole of the first bearing 10, and the linkage component 9 can rotate freely compared with the third sensing component 7, so as to improve the smoothness of the operation of the limiting mechanism.

[0061] In some specific embodiments, the linkage member 9 is a threaded rod. The linkage member 9 passes through the first bearing 10 and is fixed to the first bearing 10 by a nut 23 .

[0062] refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 On the basis of the above embodiment, it also includes a limit rod 11, the first end of the third sensor 7 has a second mounting hole, the second mounting hole is sleeved with a second bearing 12, the limit rod 11 is inserted into the second bearing 12, and the third sensor 7 is rotatably arranged on the support assembly 1 through the limit rod 11; it also includes a connecting rod 13, a first pad tube 14, a second pad tube 15 and a third bearing 16, the support assembly 1 includes a base 101 and a carrier 102; the connecting rod 13 and the third sensor 7 are both arranged on the base 101, one end of the connecting rod 13 is fixed to the base 101, and the carrier 102 is fixed to the other end of the connecting rod 13; the first pad tube 14, the third bearing 16 and the second pad tube 15 are sleeved on the outside of the connecting rod 13 along the length direction of the connecting rod 13, the driven member 2 is sleeved on the outside of the third bearing 16, and the forward sensor 5 and the reverse sensor 6 are both arranged on the carrier 102.

[0063] The limiting rod 11 can be made of a screw or a pin, etc. Similarly, a vertical through hole is opened at the left end of the C-shaped third sensing component 7 as a second mounting hole, and a second bearing 12 is inserted in the second mounting hole. The second bearing 12 is fixed in the second mounting hole of the third sensing component 7 through interference fit of the outer ring. The limiting rod 11 passes through the center hole of the second bearing 12, and the lower end of the limiting rod 11 is fixed on the support assembly 1, so that the third sensing component 7 can rotate freely compared with the support assembly 1.

[0064] In some specific embodiments, the second gasket 24 is sandwiched between the base 101 and the inner ring of the second bearing 12 to ensure smooth rotation of the inner ring of the second bearing 12 .

[0065] Furthermore, the connecting rod 13 extends vertically, and the lower end of the connecting rod 13 is fixed on the supporting assembly 1, the carrier 102 is fixed to the upper end of the connecting rod 13 by a pressure plate, etc., a third bearing 16 is sleeved on the outside of the connecting rod 13, and the follower 2 is sleeved on the outside of the third middle bearing, then the follower 2 is rotatably arranged on the supporting assembly 1 through the third bearing 16 and the connecting rod 13. In order to position the follower 2, a first washer tube 14, a third bearing 16 and a second washer tube 15 are sequentially sleeved on the outside of the connecting rod 13 from bottom to top between the carrier 102 and the base 101.

[0066] It should be noted that there is no limit to the number of the third bearings 16 as long as the installation requirements of the limiting mechanism can be met, for example, two or three.

[0067] refer to Figure 3 and Figure 5 On the basis of the above embodiment, it also includes a first fastener 17, a second fastener 18, a shaft retaining ring 19 and a first gasket 20; one end of the connecting rod 13 is fixed to the support assembly 1 by the first fastener 17, and the carrier 102 is fixed to the other end of the connecting rod 13 by the second fastener 18; the shaft retaining ring 19 and the first gasket 20 are both sleeved on the outside of the connecting rod 13, and the shaft retaining ring 19 is clamped between the third bearing 16 and the second washer 15, and the first gasket 20 is clamped between the second fastener 18 and the carrier 102.

[0068] In some specific embodiments, the central through hole of the driven member 2 includes a limiting groove, and the shaft retaining ring 19 is sleeved in the limiting groove of the central through hole of the driven member 2.

[0069] In the support assembly 1, the base 101 can be a rectangular block or a rod, etc., and the carrier 102 can be a fan-shaped sheet or a triangular sheet, etc., and vertical through holes are provided on the base 101 and the carrier 102. The first fastener 17 passes through the base 101 and extends into the lower end of the connecting rod 13 to fix the connecting rod 13, and the second fastener 18 passes through the carrier 102 and extends into the upper end of the connecting rod 13 to fix the carrier 102. Then, the base 101 can be fixed as a whole with the carrier 102 through the connecting rod 13; furthermore, a shaft retaining ring 19 is sandwiched between the third bearing 16 and the second washer 15 at the top, and a first gasket 20 is sandwiched between the second fastener 18 and the carrier 102. In summary, it is conducive to ensuring the smooth operation of the limit mechanism, and the layout is reasonable and the structure is compact.

[0070] refer to Figure 1 , Figure 2 and Figure 4On the basis of the above embodiment, the distance between one of the first sensing member 3 and the second sensing member 4 and the rotation centerline of the driven member 2 is greater than the distance between the other and the rotation centerline of the driven member 2, and the connecting line of the first sensing member 3 and the second sensing member 4 has a non-zero angle with the rotation centerline of the driven member 2.

[0071] The distance between the first induction member 3 and the rotation center line of the driven member 2 is greater or less than the distance between the second induction member 4 and the rotation center line of the driven member 2. Figure 1 In the orientation shown, the rotation centerline of the follower 2 extends in a direction perpendicular to the paper surface, and the first sensing member 3 is located above the second sensing member 4. Then, a non-zero angle is formed between the line connecting the first sensing member 3 and the second sensing member 4 and the rotation centerline of the follower 2, for example, 30 degrees or 45 degrees. With such an arrangement, the limit mechanism can easily control the C-axis to rotate in the forward or reverse direction at a preset angle and then stop.

[0072] refer to Figure 1 On the basis of the above embodiment, it also includes a driving wheel 21 and a synchronous belt 22. The driven member 2 is a gear structure. The synchronous belt 22 is meshed and transmitted to the driven member 2 and the driving wheel 21. The driving wheel 21 is used for coaxial and transmission sleeve on the C axis of the five-axis swing head.

[0073] The driving wheel 21 is located on the side of the driven member 2, and the rotation centerline of the driving wheel 21 is parallel to the rotation centerline of the driven member 2. The synchronous belt 22 is wound around the outer circumference of the driving wheel 21 and the driven member 2. When in use, the driving wheel 21 is mounted on the C-axis of the five-axis swing head by key connection or welding, and the rotation of the C-axis can drive the driven wheel to rotate through the driving member and the synchronous belt 22 in turn. With this arrangement, the synchronous belt 22 and the driving wheel 21 can achieve long-distance linkage with the C-axis, which is convenient for the layout of the limiting mechanism and is beneficial to improving the durability of the limiting mechanism. The structure is simple and convenient for maintenance during use.

[0074] In addition to the above-mentioned five-axis head C-axis rotation limiting mechanism, the present invention also provides a five-axis swing head including the five-axis head C-axis rotation limiting mechanism disclosed in the above-mentioned embodiment. For the structures of other parts of the five-axis swing head, please refer to the prior art and will not be repeated in this article.

[0075] In addition to the above-mentioned five-axis head C-axis rotation limiting mechanism and five-axis swing head, the present invention also provides a five-axis machine tool including the five-axis swing head disclosed in the above-mentioned embodiment. For the structures of other parts of the five-axis machine tool, please refer to the prior art and will not be repeated in this article.

[0076] It should be noted that the relational terms such as "first" and "second" mentioned above are merely used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between these entities; the "upper surface, lower surface, top, bottom" and the directional words "upper, lower, left, right" mentioned above are all defined based on the drawings in the specification.

[0077] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0078] The above is a detailed introduction to the five-axis head C-axis rotation limit mechanism, five-axis swing head and five-axis machine tool provided by the present application. This article uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the present application.

Claims

1. A five-axis head C-axis rotation limiting mechanism, characterized in that: include: A support assembly (1), a driven member (2), a third sensing member (7), an over-limit sensor (8), and a controller; The driven member (2) is rotatably arranged on the supporting assembly (1) and is used for transmission connection to the C axis of the five-axis swing head; The first end of the third sensing member (7) is rotatably disposed on the support assembly (1), and the rotation center line of the third sensing member (7) is parallel to the rotation center line of the driven member (2); The second end of the driven member (2) has a spiral guide portion (201), the spiral guide portion (201) extends and spirals around the rotation center line of the driven member (2), the third sensing member (7) is provided with a linkage member (9), and the linkage member (9) is slidably inserted in the spiral guide portion (201); The over-limit sensor (8) is located on the side of the third sensing element (7) and is used to sense the second end of the third sensing element (7) to detect whether the C axis of the five-axis swing head rotates within a preset angle range; The controller signal is connected to the over-limit sensor (8), and the controller is used to signal connect to a driving device that drives the C-axis of the five-axis swing head to rotate, so as to control the start and stop of the driving device according to the sensing result of the over-limit sensor (8).

2. The five-axis head C-axis rotation limiting mechanism according to claim 1 is characterized in that: It also includes a first induction element (3), a second induction element (4), a forward induction element (5), and a reverse induction element (6). The spiral guide portion (201) is located at the second end of the driven member (2), and the first induction member (3) and the second induction member (4) are both arranged at the first end of the driven member (2); The forward sensor (5) and the reverse sensor (6) are both arranged on the support assembly (1), and the forward sensor (5) is used to sense the first sensing element (3) for detecting whether the C axis of the five-axis swing head rotates in the forward direction to a forward limit angle, and the reverse sensor (6) is used to sense the second sensing element (4) for detecting whether the C axis of the five-axis swing head rotates in the reverse direction to a reverse limit angle, and the forward limit angle is greater than the positive limit of the preset angle range, and the reverse limit angle is less than the negative limit of the preset angle range; The controller is connected to the forward sensor (5) and the reverse sensor (6) by signals, and is used to control the start and stop of the driving device according to the sensing results of the forward sensor (5) and the reverse sensor (6).

3. The five-axis head C-axis rotation limiting mechanism according to claim 2 is characterized in that: The forward sensor (5), the reverse sensor (6) and the over-limit sensor (8) are all proximity switches.

4. The five-axis head C-axis rotation limiting mechanism according to claim 2 is characterized in that: The third induction element (7) is a C-shaped block structure; The middle block section of the third sensing member (7) has a first mounting hole, a first bearing (10) is sleeved inside the first mounting hole, a first end of the linkage member (9) is inserted into the first mounting hole, and a second end is slidably inserted into the spiral guide portion (201).

5. The five-axis head C-axis rotation limiting mechanism according to claim 4 is characterized in that: It also comprises a limiting rod (11), the first end of the third sensing element (7) has a second mounting hole, the interior of the second mounting hole is sleeved with a second bearing (12), the limiting rod (11) is inserted into the interior of the second bearing (12), and the third sensing element (7) is rotatably arranged on the supporting assembly (1) via the limiting rod (11); It also includes a connecting rod (13), a first washer tube (14), a second washer tube (15) and a third bearing (16); the support assembly (1) includes a base (101) and a carrier (102); The connecting rod (13) and the third sensing element (7) are both arranged on the base (101), one end of the connecting rod (13) is fixed to the base (101), and the moving element (102) is fixed to the other end of the connecting rod (13); The first washer tube (14), the third bearing (16) and the second washer tube (15) are sleeved on the outside of the connecting rod (13) along the length direction of the connecting rod (13), the driven member (2) is sleeved on the outside of the third bearing (16), and the forward sensor (5) and the reverse sensor (6) are both arranged on the carrier (102).

6. The five-axis head C-axis rotation limiting mechanism according to claim 5, characterized in that: It also includes a first fastener (17), a second fastener (18), a shaft retaining ring (19) and a first gasket (20); One end of the connecting rod (13) is fixed to the supporting assembly (1) via a first fastener (17), and the carrier (102) is fixed to the other end of the connecting rod (13) via a second fastener (18); The shaft retaining ring (19) and the first gasket (20) are both sleeved on the outside of the connecting rod (13), and the shaft retaining ring (19) is clamped between the third bearing (16) and the second gasket tube (15), and the first gasket (20) is clamped between the second fastener (18) and the carrier (102).

7. The five-axis head C-axis rotation limiting mechanism according to any one of claims 1 to 6, characterized in that: The distance between one of the first sensing member (3) and the second sensing member (4) and the rotation center line of the driven member (2) is greater than the distance between the other and the rotation center line of the driven member (2), and a line connecting the first sensing member (3) and the second sensing member (4) and the rotation center line of the driven member (2) have a non-zero angle.

8. The five-axis head C-axis rotation limiting mechanism according to claim 1 is characterized in that: It also comprises a driving wheel (21) and a synchronous belt (22), the driven member (2) being a gear structure, the synchronous belt (22) meshingly transmitting the driven member (2) and the driving wheel (21), and the driving wheel (21) being coaxially and transmission-sleeved on the C axis of the five-axis swing head.

9. A five-axis swing head, characterized in that: It includes the five-axis head C-axis rotation limiting mechanism as described in any one of claims 1 to 8 above.

10. A five-axis machine tool, characterized in that: Including the five-axis swing head as described in claim 9 above.

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