Anti-collision structure for high-precision machine tool machining

Abstract

The utility model discloses an anti-collision structure for high-precision machine tool machining, which comprises a cutter, the cutter is provided with a thread line, the thread line is in threaded connection with the inner ring of an adjusting ring, the outer ring of the adjusting ring is provided with a gear block, the gear block is meshed with an adjusting gear, and the top of the gear is fixedly connected with the output end of a motor. The bottom of the adjusting ring is rotationally connected with the anti-collision structure, the bottom of the cutter is fixedly connected with the cutter bit, and the technical problems that in the prior art, the cutter bit anti-collision structure is high in cost and prone to damage after being used for a long time are effectively solved.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of high-precision machine tool processing, in particular to an anti-collision structure for high-precision machine tool processing. Background Art

[0002] Vertical high-precision machine tools are mainly suitable for processing complex parts such as plates, discs, molds and small shells. Vertical machining centers can complete milling, boring, drilling, tapping and cutting threads. Vertical machining centers are at least three-axis two-linkage, and generally can achieve three-axis three-linkage. Some can perform five-axis and six-axis control. The height of the column of the vertical machining center is limited, and the processing range of box-type workpieces should be reduced, which is a disadvantage of the vertical machining center. However, the vertical machining center is convenient for clamping and positioning workpieces; the movement trajectory of the cutting tool is easy to observe, and the debugging program is convenient for inspection and measurement, so problems can be discovered in time, and shutdown processing or modification can be carried out; cooling conditions are easy to establish, and the cutting fluid can directly reach the tool and the processing surface; the three coordinate axes are consistent with the Cartesian coordinate system, and the intuitive feeling is consistent with the drawing perspective. The chips are easy to remove and fall, avoiding scratches on the processed surface. Compared with the corresponding horizontal machining center, it has a simple structure, a small footprint, and a low price.

[0003] Chinese patent announcement number CN218836977U discloses an anti-collision tool device for a precision vertical machining center machine tool. The device uses three sets of electric push rods to push the plug-in rod to extend and retract inside the connecting rod, so that the contact head is slightly higher than the cutter head. When the cutter head is close to the workpiece, the electric push rod retracts synchronously with the descending speed of the cutter, which can avoid the cutter hitting the workpiece and causing a cutter collision. When the cutter contacts the workpiece and operates normally, the problem of cutter collision generally does not occur. At this time, the contact rod can be shrunk and fitted to the cutter according to the situation to avoid the contact part falling off and causing an emergency stop. The overall design of the device meets the use requirements and improves the use effect of the anti-collision tool.

[0004] However, the device requires three electric push rods to push the three plug-in rods to adjust the distance, which is costly. In addition, the plug-in rods of the device do not have shock-proof rebound reset, so even a slight vibration during use may cause the position of the plug-in rod to shift, further causing errors in the electric push rods, and may also cause damage to the electric push rods in the long run.

[0005] Therefore, an anti-collision structure processed by high-precision machine tools is needed to solve the above problems. Utility Model Content

[0006] The technical solution of the utility model is aimed at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology. It mainly provides an anti-collision structure for high-precision machine tool processing, which is used to solve the technical problems in the existing technology that the tool head anti-collision structure is high in cost and is prone to damage after long-term use.

[0007] The technical solution adopted by the utility model to solve the above technical problems is: an anti-collision structure processed by a high-precision machine tool, comprising a tool, the tool having a thread line, the thread line being threadedly connected to the inner ring of an adjusting ring, a tooth block being arranged on the outer ring of the adjusting ring, the tooth block being meshed with an adjusting gear, the top of the gear being connected and fixed to the output end of a motor, the bottom of the adjusting ring being rotatably connected to the anti-collision structure, and the bottom of the tool being connected and fixed to a cutter head.

[0008] Preferably, the anti-collision structure includes a protective ring, the bottom of which is connected and fixed to the tops of three equidistantly arranged rectangular blocks, vertical rectangular grooves are opened at opposite ends of the three rectangular blocks, and the lower end of the rectangular groove is rotatably connected to the middle position of the telescopic rod.

[0009] Preferably, the bottom of the telescopic rod is connected and fixed to a bull's eye bearing, and the ball of the bull's eye bearing is in contact with the grinding tool.

[0010] Preferably, the opposite ends of the tops of the three telescopic rods are respectively connected and fixed to one end of a reset elastic member, and the other end of the reset elastic member is connected and fixed to the bottom of a rectangular groove opened in the rectangular block. A control switch is provided at the bottom of the rectangular groove, and the control switch is in contact with the upper end of the telescopic rod.

[0011] Preferably, the upper end of the telescopic rod is a first sleeve rod, the lower end of the first sleeve rod is provided with a sliding hole, a vertically arranged buffer elastic member is arranged in the sliding hole, and the sliding hole is slidably connected to the second sleeve rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the adjusting gear is driven to rotate by the motor, and the adjusting gear drives the tooth block to rotate, thereby causing the adjusting ring to rotate. Since the inner ring of the adjusting ring is threadedly connected to the thread line, the adjusting ring moves up and down, driving the anti-collision structure to move up and down to expose the cutter head. Thus, the structure can drive the anti-collision structure as a whole to move up and down at the same time, and the structure is relatively simple and the cost is low.

[0013] When the telescopic rod is slightly impacted, it can be quickly reset through the reset elastic part, which has a certain fault tolerance and avoids damage to the thread line and the inner ring of the adjustment ring. When it is severely impacted and the telescopic rod is completely separated from the control switch, the control switch triggers the pneumatic to stop the machine tool to avoid accidents and further improve safety.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2It is a three-dimensional schematic diagram of the anti-collision structure in the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the rectangular block and the telescopic rod in the utility model;

[0018] Markings in the figure: 1-tool, 2-thread line, 3-adjusting ring, 4-adjusting gear, 5-anti-collision structure, 51-protection ring, 52-rectangular block, 521-reset elastic member, 522-control switch, 53-telescopic rod, 531-buffer elastic member, 54-bull's eye bearing, 6-tool head. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field of the present invention. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] See also Figure 1-Figure 3 , an anti-collision structure for high-precision machine tool processing, including a tool 1, a thread line 2 is provided on the tool 1, the thread line 2 is threadedly connected to the inner ring of the adjusting ring 3, a tooth block is arranged on the outer ring of the adjusting ring 3, the tooth block is meshed with the vertically arranged adjusting gear 4, the top of the gear is connected and fixed to the output end of the inverted motor, the bottom of the adjusting ring 3 is rotatably connected to the anti-collision structure 5, the bottom of the tool 1 is connected and fixed to the cutter head 6, the adjusting gear 4 is driven to rotate by the motor, and the adjusting gear 4 drives the tooth block to rotate, thereby causing the adjusting ring 3 to rotate, because the inner ring of the adjusting ring 3 is threadedly connected to the thread line 2, the adjusting ring moves up and down, driving the anti-collision structure 5 to move up and down to expose the cutter head 6, so that the anti-collision structure 5 will not affect the workmanship when processing the side of the mold.

[0023] The anti-collision structure 5 includes a protective ring 51, the bottom of which is connected and fixed to the tops of three equidistantly arranged rectangular blocks 52, and vertical rectangular grooves are provided at the opposite ends of the three rectangular blocks 52, and the lower ends of the rectangular grooves are rotatably connected to the middle position of the telescopic rod 53. The telescopic rod 53 can protect the cutter head 6 at the lower end of the tool 1, thereby preventing the cutter head 6 from being damaged by accidental impact.

[0024] The bottom of the telescopic rod 53 is connected and fixed to the bull's eye bearing 54, and the ball of the bull's eye bearing 54 contacts the mold. The contact between the ball of the bull's eye bearing 54 and the mold can prevent the telescopic rod 53 from directly contacting the mold and being worn over a long period of time.

[0025] The opposite ends of the tops of the three telescopic rods 53 are respectively connected and fixed to one end of a reset elastic member 521, which can be a spring. The other end of the reset elastic member 521 is connected and fixed to the bottom of the rectangular groove opened in the rectangular block 52. A control switch 522 is set at the bottom of the rectangular groove. The control switch 522 contacts the upper end of the telescopic rod 53. When the telescopic rod 53 is slightly impacted, it can be quickly reset through the reset elastic member 521. When it is severely impacted and the telescopic rod 53 is completely separated from the control switch 522, the control switch 522 triggers the pneumatic to stop the machine tool to avoid accidents and further improve safety.

[0026] The upper end of the telescopic rod 53 is the first set of rods, and a sliding hole is provided at the lower end of the first set of rods. A vertically arranged buffer elastic member 531 is provided in the sliding hole. The buffer elastic member 531 can be a spring. The sliding hole is slidably connected to the second set of rods. In order to prevent the second set of rods from being unstable due to vibration during the operation of the machine tool, the buffer elastic member 531 can be continuously pressed down to cause the second set of rods to continuously contact the mold, thereby preventing foreign matter from entering the position of the cutter head 6.

[0027] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. An anti-collision structure for high-precision machine tool processing, characterized in that: The tool (1) comprises a thread line (2), the thread line (2) is threadedly connected to the inner ring of an adjusting ring (3), the outer ring of the adjusting ring (3) is provided with a tooth block, the tooth block is meshed with an adjusting gear (4), the top of the gear is connected and fixed to the output end of a motor, the bottom of the adjusting ring (3) is rotatably connected to an anti-collision structure (5), and the bottom of the tool (1) is connected and fixed to a tool head (6); The anti-collision structure (5) comprises a protection ring (51), the bottom of the protection ring (51) is connected and fixed to the tops of three rectangular blocks (52) arranged at equal distances, the three rectangular blocks (52) are provided with vertical rectangular grooves at opposite ends, and the lower end of the rectangular groove is rotatably connected to the middle position of the telescopic rod (53); The opposite ends of the tops of the three telescopic rods (53) are respectively connected and fixed to one end of a reset elastic member (521), and the other end of the reset elastic member (521) is connected and fixed to the bottom of a rectangular groove opened by the rectangular block (52). A control switch (522) is arranged at the bottom of the rectangular groove, and the control switch (522) contacts the upper end of the telescopic rod (53).

2. The anti-collision structure processed by a high-precision machine tool according to claim 1, characterized in that: The bottom of the telescopic rod (53) is connected and fixed to a bull's eye bearing (54), and the ball of the bull's eye bearing (54) is in contact with the grinding tool.

3. The anti-collision structure processed by a high-precision machine tool according to claim 1, characterized in that: The upper end of the telescopic rod (53) is a first sleeve rod, and the lower end of the first sleeve rod is provided with a sliding hole, in which a vertically arranged buffer elastic member (531) is arranged, and the sliding hole is slidably connected to the second sleeve rod.

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