Low-abrasion guide mechanism

Abstract

The utility model relates to the related field of guide mechanisms, in particular to a low-abrasion guide mechanism which comprises a fixing frame, a guide ring, an auxiliary mechanism and the like. The auxiliary mechanism is arranged in the guide ring, the guide wheels move inwards at the same time to make contact with different positions of the workpiece, and therefore all-directional limiting and supporting are provided for the workpiece rapidly and automatically, the workpiece is in rolling connection with the positioning wheels during machining and does not make direct contact with the guide ring, and machining precision is improved. The abrasion of the workpiece due to friction with the guide ring is reduced, the guide wheel can provide a stable guiding effect on workpieces of more sizes after moving and adjusting, the pressure sensor detects the pressure of the guide wheel on the workpiece, the pressure of the guide wheel on the workpiece is low, the workpiece can move quickly, the abrasion of the workpiece and the guide part is low, and the machining precision is improved. And the application range of the guide mechanism is widened.

Description

Technical Field

[0001] The utility model relates to the relevant field of guide mechanisms, in particular to a low-wear guide mechanism. Background Art

[0002] The guide mechanism is one of the common mechanisms in machinery, which is used to guide the direction of movement of an object or maintain the stability of movement. The application range of the guide mechanism is relatively wide. Among them, the guide mechanism is often used in mechanical processing equipment. The guide mechanism in the processing equipment usually refers to the mechanism used to control and guide the motion trajectory of the workpiece or part. They can make the processing process more precise and efficient, and reduce errors and mistakes in the processing equipment. The following are several common guide mechanisms for processing equipment.

[0003] The guide mechanism usually adopts a simple guide ring or guide slide rail when guiding the workpiece. Since the workpiece is in direct friction contact with the guide during processing, the workpiece and the guide are easily worn due to friction. In addition, the size of the guide is relatively fixed, which is not convenient to adjust according to the size of the workpiece. It is difficult for workpieces of different sizes to have stable contact with the guide, making it difficult for the guide to provide stable guiding for workpieces of different sizes. Some adjustable guides are mostly adjusted by bolts, which have low adjustment efficiency and are difficult to control the clamping force on the workpiece. It is easy for the workpiece to be difficult to slide due to excessive clamping force or the guide is damaged due to excessive pressure on the workpiece for a long time, which reduces the application range of the guide. Summary of the invention

[0004] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a low-wear guide mechanism to solve the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned object, the utility model adopts the following technical scheme: a low-wear guide mechanism, including a fixed frame and a guide ring installed in the fixed frame, and also including an auxiliary mechanism arranged in the guide ring, the auxiliary mechanism including an annular groove opened along the inner wall of the circumference of the guide ring, and a rotating ring movably installed in the annular groove;

[0006] A plurality of guide frames are installed in the annular groove and are fitted to the inner ring of the rotating ring;

[0007] A driving assembly is disposed outside the rotating ring, for providing driving force for the rotating ring to rotate in the annular groove;

[0008] A sliding frame is slidably installed in the guide frame, a connecting frame is movably installed at the bottom of the sliding frame, a transmission rod is rotatably installed on the top of the sliding frame, and a pressure sensor is arranged between the sliding frame and the connecting frame. The transmission rod is rotatably connected to a swivel at one end away from the sliding frame, and a support assembly for providing auxiliary support for the workpiece is arranged in the connecting frame.

[0009] Preferably, a spring is installed at each of the left and right ends of the top of the sliding frame, and one end of the spring away from the sliding frame is connected to a fixed plate, and the fixed plate is fixed in the guide frame.

[0010] Preferably, the guide frames in the annular groove are distributed in an annular shape with equal intervals.

[0011] Preferably, the drive assembly includes a convex plate installed on the top surface of the swivel, which passes through the guide ring and the inner top of the fixed frame and is rotatably connected to the piston rod of the cylinder. The cylinder is rotatably installed in the support frame, and the support frame is fixed to the top edge of the fixed frame.

[0012] Preferably, the top surfaces of the fixing frame and the guide ring are provided with strip holes, and the inner sides of the strip holes correspond to the convex plates.

[0013] Preferably, the supporting assembly includes a rotating shaft arranged on the inner side of the connecting frame, two bearings fixedly mounted on the inner bottom of the connecting frame and symmetrical to each other, the left and right ends of the rotating shaft are respectively connected to the inner rings of the two bearings, and the rotating shaft is connected to the inner ring of the guide wheel, the vertical projection of the bearing falls within the range of the receiving frame, the guide wheel is arranged on the inner side of the connecting frame, and the receiving frame is installed at the bottom edge of the connecting frame.

[0014] Preferably, the bottom end surface of the guide wheel is lower than the bottom end surfaces of the connecting frame and the receiving frame.

[0015] Preferably, the guide wheel is provided with an annular groove along the circumferential outer surface.

[0016] Beneficial effects of the utility model:

[0017] The utility model arranges an auxiliary mechanism in the guide ring, and a plurality of guide wheels move inwards at the same time to contact different positions of the workpiece, thereby quickly and automatically providing all-round limiting and support for the workpiece. During processing, the workpiece is rollingly connected with the positioning wheel without directly contacting the guide ring, thereby reducing the wear of the workpiece due to friction with the guide ring. Moreover, after movement and adjustment, the guide wheel can also provide stable guiding effect for workpieces of more sizes, and the pressure sensor detects the pressure of the guide wheel on the workpiece, so that the pressure of the guide wheel on the workpiece is clocked, which is conducive to rapid movement of the workpiece, and the workpiece and the guide member are also less worn, which is conducive to improving the application range of the guide mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the front cross-sectional structure of the auxiliary mechanism of the utility model;

[0020] Figure 3 This is a schematic diagram of the front view connection structure of the guide frame of the utility model;

[0021] Figure 4 It is a schematic diagram of the top view structure of the fixing frame of the utility model.

[0022] Among them: fixed frame -1, guide ring -2, auxiliary mechanism -3, annular groove -31, swivel -32, guide frame -33, sliding frame -34, transmission rod -35, convex plate -36, cylinder -37, support frame -38, connecting frame -39, rotating shaft -310, bearing -311, guide wheel -312, receiving frame -313, pressure sensor -314, spring -315, fixed plate -316. DETAILED DESCRIPTION

[0023] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0024] like Figure 1 As shown, the utility model provides a low-wear guide mechanism, comprising a fixing frame 1 and a guide ring 2 fixedly installed in the fixing frame 1;

[0025] When in use, the fixing frame 1 is installed at a proper position in the mechanical processing equipment, and the guide ring 2 in the fixing frame 1 is aligned with the processing end of the processing equipment.

[0026] like Figure 2 As shown, this embodiment also includes an auxiliary mechanism 3 disposed in the guide ring 2 for providing positioning support for the workpiece, the auxiliary mechanism 3 includes an annular groove 31 vertically opened along the inner wall of the circumference of the guide ring 2, and a rotating ring 32 rotatably installed in the annular groove 31;

[0027] A plurality of guide frames 33 are installed in the annular groove 31 and are fitted to the inner ring of the rotating ring 32;

[0028] A driving assembly is disposed outside the rotating ring 32 to provide driving force for the rotating ring 32 to rotate vertically along the inner wall of the annular groove 31;

[0029] A sliding frame 34 is slidably mounted inside the guide frame 33. The sliding frame 34 can move along the inner side of the guide frame 33, so that the moving frame 34 drives the inner support assembly to move inward to contact the workpiece.

[0030] A connecting frame 39 is movably mounted at the bottom of the sliding frame 34, a transmission rod 35 is rotatably mounted at the top of the sliding frame 34, and a pressure sensor 314 is arranged between the sliding frame 34 and the connecting frame 39 for detecting the pressure applied by the guide mechanism to the workpiece. The end of the transmission rod 35 away from the sliding frame 34 is rotatably connected to the rotating ring 32, and a support assembly for providing auxiliary support for the workpiece is arranged in the connecting frame 39;

[0031] In this embodiment, a spring 315 is installed at the left and right ends of the top of the sliding frame 34, and the end of the spring 315 away from the sliding frame 34 is connected to the fixed plate 316, and the fixed plate 316 is fixed in the guide frame 33, so that the sliding frame 34 is reset by the elastic force of the spring 315 after not being pushed by the transmission rod 35.

[0032] The guide frames 33 in the annular groove 31 are distributed in an annular shape with equal spacing, so that the support components in each guide frame 33 can evenly provide positioning support for the workpiece.

[0033] like Figure 3 and Figure 4 As shown, in this embodiment, the driving assembly includes a convex plate 36 vertically welded to the middle of the top surface of the rotating ring 32, and the convex plate 36 is movably passed through the inner top of the guide ring 2 and the fixing frame 1 and is rotatably connected with the piston rod of the cylinder 37. The cylinder 37 is rotatably installed in the support frame 38, and the support frame 38 is locked and fixed at the top edge of the fixing frame 1;

[0034] Among them, the top surfaces of the fixing frame 1 and the guide ring 2 are provided with strip holes, and the inner side of the strip holes corresponds to the convex plate 36, so that the convex plate 36 can move in the strip holes, so that the convex plate 36 can drive the rotating ring 32 to rotate stably in the annular groove 31.

[0035] like Figure 3 As shown, the support assembly in this embodiment includes a round rod-shaped rotating shaft 310 arranged on the inner side of the connecting frame 39, and two bearings 311 fixedly mounted on the left and right ends of the inner bottom of the connecting frame 39 and symmetrical to each other. The left and right ends of the rotating shaft 310 are respectively connected to the inner rings of the two bearings 311, and the rotating shaft 310 is connected to the inner ring of the guide wheel 312. The vertical projection of the bearing 311 falls within the range of the receiving frame 313. The guide wheel 312 is arranged on the inner side of the connecting frame 39, and the receiving frame 313 is locked and fixed at the bottom edge of the connecting frame 39 to collect the lubricating oil dropped from the bearing 311.

[0036] The bottom end surface of the guide wheel 312 is lower than the bottom end surfaces of the connecting frame 39 and the receiving frame 313, so that the guide wheel 312 can stably contact the outer surface of the workpiece, so that the guide wheel 312 can provide stable support for the workpiece;

[0037] In this embodiment, the guide wheel 312 is made of stainless steel, which has strong wear resistance and longer service life;

[0038] In this embodiment, the guide wheel 312 is provided with an annular groove along the outer surface of the circumference, so that the guide wheel 312 can provide positioning support for the corners of the square workpiece through the annular groove;

[0039] When in use, the workpiece passes through the inner ring of the guide ring 2 and enters the processing part of the processing equipment. At this time, the control cylinder 37 drives the convex plate 36 to rotate, and the convex plate 36 drives the swivel 32 to rotate in the annular groove 31. When the swivel 32 rotates, the transmission rod 35 pushes the sliding frame 34 to move in the guide frame 33, and the moving frame 34 drives the guide wheel 312 to move inward to contact the outer surface of the workpiece. Since a plurality of annularly distributed guide frames 33, sliding frames 34 and guide wheels 312 are arranged in the annular groove 31, the plurality of guide wheels 312 move inward synchronously to contact different positions of the workpiece, so that the plurality of guide wheels 312 provide stable positioning and support for the workpiece. The cylinder 37 continuously drives the guide frame 33, sliding frames 34 and guide wheels 312 to move inward to contact the outer surface of the workpiece. When the guide wheel 312 moves inward, the guide wheel 312 applies pressure to the workpiece, and the pressure is transmitted to the rotating shaft 310 and the connecting frame 39. The connecting frame 39 applies pressure to the pressure sensor 314, so that the pressure sensor 314 detects the pressure applied by the guide wheel 312 to the workpiece. When the top pressure sensor 314 detects that the pressure applied by the guide wheel 312 to the workpiece is always the cylinder 37 stops working, and then the workpiece can be moved inside the guide wheel 312 to the processing equipment for processing. When the workpiece moves, it drives the guide wheel 312 to roll, reducing the friction force on the workpiece, reducing the rigid contact between the workpiece and the guide mechanism, and reducing the situation where the guide mechanism and the workpiece rub against each other and wear each other.

[0040] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-wear guide mechanism, comprising a fixing frame and a guide ring installed in the fixing frame; Features: It also includes an auxiliary mechanism disposed in the guide ring, the auxiliary mechanism including an annular groove opened along the inner wall of the circumference of the guide ring and a rotating ring movably installed in the annular groove; A plurality of guide frames are installed in the annular groove and are fitted to the inner ring of the rotating ring; A driving assembly is disposed outside the rotating ring, for providing driving force for the rotating ring to rotate in the annular groove; A sliding frame is slidably installed in the guide frame, a connecting frame is movably installed at the bottom of the sliding frame, a transmission rod is rotatably installed on the top of the sliding frame, and a pressure sensor is arranged between the sliding frame and the connecting frame. The transmission rod is rotatably connected to a swivel at one end away from the sliding frame, and a support assembly for providing auxiliary support for the workpiece is arranged in the connecting frame.

2. A low-wear guide mechanism according to claim 1, characterized in that: A spring is respectively installed at the left and right ends of the top of the sliding frame. One end of the spring away from the sliding frame is connected to a fixed plate, and the fixed plate is fixed in the guide frame.

3. A low-wear guide mechanism according to claim 1, characterized in that: The guide frames in the annular groove are distributed in an annular shape with equal intervals.

4. A low-wear guide mechanism according to claim 1, characterized in that: The driving assembly includes a convex plate installed on the top surface of the rotating ring. The convex plate passes through the guide ring and the inner top of the fixing frame and is rotatably connected to the piston rod of the cylinder. The cylinder is rotatably installed in the support frame, and the support frame is fixed at the top edge of the fixing frame.

5. A low-wear guide mechanism according to claim 4, characterized in that: The top surfaces of the fixing frame and the guide ring are provided with strip holes, and the inner sides of the strip holes correspond to the convex plates.

6. A low-wear guide mechanism according to claim 1, characterized in that: The supporting assembly includes a rotating shaft arranged on the inner side of the connecting frame, and two bearings fixedly mounted on the inner bottom of the connecting frame and symmetrical to each other. The left and right ends of the rotating shaft are respectively connected to the inner rings of the two bearings, and the rotating shaft is connected to the inner ring of the guide wheel. The vertical projection of the bearing falls within the range of the receiving frame. The guide wheel is arranged on the inner side of the connecting frame, and the receiving frame is installed at the bottom edge of the connecting frame.

7. A low-wear guide mechanism according to claim 6, characterized in that: The bottom end surface of the guide wheel is lower than the bottom end surfaces of the connecting frame and the receiving frame.

8. A low-wear guide mechanism according to claim 6, characterized in that: The guide wheel is provided with an annular groove along the circumferential outer surface.

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