Grinding jig for chamfering

Abstract

The utility model relates to the technical field of grinding jigs, and discloses a grinding jig for chamfering, which comprises a base, the front side of the top end of the base is rotatably connected with a cutting head, the top end of the base is detachably provided with a grinding tool, the front end of the grinding tool is slidably connected with a movable plate, and the top end of the right side of the movable plate is provided with a rotating mechanism; the rotating mechanism comprises a supporting block, a fixed column is rotatably connected to the inner wall of the right side of the movable plate, a supporting column is fixedly connected to the right end of the movable plate, a connecting frame is fixedly connected to the right end of the cutting head, and a clamping mechanism is arranged at the left end of the movable plate. According to the clamping device, after a workpiece to be machined is clamped, the movable plate is moved rightwards, the fixed column is connected with the rotating barrel in an inserted mode, then the purpose of automatically rotating by 90 degrees is achieved through movement of the reset column, the situation that clamping and grinding are conducted after the movable pressing plate relieves limiting is avoided, and the overall operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding jigs, in particular to a grinding jig for chamfering. Background Art

[0002] In modern manufacturing, the demands for machining precision and surface quality of parts are becoming increasingly stringent. Chamfering, as a common machining process, is widely used in numerous fields, including machinery, electronics, and automotive. The primary purpose of chamfering is to remove burrs and sharp edges from part edges, improving part safety and assembly performance while also enhancing the part's appearance.

[0003] After searching, Chinese patent announcement number: CN220145643U discloses a chamfering jig for a grinding machine. Its technical solution includes: a base, a pair of support blocks are fixedly connected to the upper surface of the base, the upper surfaces of the pair of support blocks are connected to a support plate, the upper surface of the support plate is fixedly connected to a first positioning block, a second positioning block is provided on the top of the first positioning block, a pair of adjusting bolts are threaded through the second positioning block, one end of the pair of adjusting bolts is threadedly connected to the first positioning block, a pair of slide grooves are provided on the side of the first positioning block, and a polished rod is fixedly provided inside the pair of slide grooves. The utility model adopts a structural design of a connecting block, a pressure plate, a spring, etc., and the elastic force of the spring pushes the connecting block to move, and the connecting block drives the pressure plate to move, so that workpieces of different sizes can be clamped and fixed, thereby improving processing accuracy, reducing the labor of manual hand-held work, and improving chamfering efficiency.

[0004] Although the above technology has certain improvements, when all four corners of some workpieces need to be chamfered, it is necessary to manually push the pressure plate to release the limit on the workpiece, and then rotate the workpiece ninety degrees to clamp it, and then proceed to the next grinding, which is rather troublesome. Therefore, a chamfering grinding jig is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a chamfering grinding jig, which aims to improve the problem in the prior art that when grinding the four sides of the workpiece, the pressure plate needs to be released and then rotated ninety degrees to carry out the next grinding, which is more troublesome.

[0006] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: a chamfering grinding jig, comprising a base, a cutting head being rotatably connected to the front side of the top end of the base, a grinding tool being detachably mounted on the top end of the base, a movable plate being slidably connected to the front end of the grinding tool, and a rotating mechanism being provided on the top right end of the movable plate;

[0007] The rotating mechanism includes a support block, the right inner wall of the movable plate is rotatably connected to a fixed column, the right end of the movable plate is fixedly connected to the support column, the inner wall of the support block is elastically connected to the plug-in column through a connecting spring, the right end of the cutting head is fixedly connected to the connecting frame, the left side of the connecting frame is fixedly connected to an elastic telescopic rod, the inner wall of the movable end of the elastic telescopic rod is elastically connected to the reset column through a reset spring, the left side of the connecting frame is rotatably connected to a rotating barrel, and the left end of the movable plate is provided with a clamping mechanism.

[0008] As a further description of the above technical solution:

[0009] One end of the connecting spring is fixedly connected to the inner wall of the support block, and the other end of the connecting spring is fixedly connected to the outer wall of the plug-in column. The outer wall of the plug-in column passes through and is slidably connected to the inner wall of the support block, and the bottom end of the plug-in column is plugged into the inner wall of the fixed column.

[0010] As a further description of the above technical solution:

[0011] One end of the reset spring is fixedly connected to the outer wall of the reset column, and the other end of the reset spring is fixedly connected to the inner wall of the movable end of the elastic telescopic rod. The outer wall of the reset column is slidably connected to the inner wall of the movable end of the elastic telescopic rod.

[0012] As a further description of the above technical solution:

[0013] An arc groove is provided on the outer wall of the rotating barrel, and the top end of the reset column contacts the inner wall of the arc groove.

[0014] As a further description of the above technical solution:

[0015] The right end of the fixed column is plugged into the inner wall of the rotating barrel, the right end of the supporting column contacts the left end of the elastic telescopic rod, and the bottom end of the supporting block is fixedly connected to the right top end of the movable plate.

[0016] As a further description of the above technical solution:

[0017] The clamping mechanism includes a rotating plate, the outer wall of the rotating plate is rotatably connected to the inner wall of the left end of the movable plate, the inner wall of the rotating plate is threadedly connected to a threaded rod, the inner wall of the left end of the movable plate is slidably connected to a limiting column, the front side of the left end of the movable plate is fixedly connected to a positioning plate, the top of the positioning plate is fixedly connected to a second magnetic block, the front end of the movable plate is fixedly connected to a first magnetic block, and the upper and lower ends of the limiting column are fixedly connected to magnets.

[0018] As a further description of the above technical solution:

[0019] The rear end of the limiting column is plugged into the inner wall of the rotating plate.

[0020] As a further description of the above technical solution:

[0021] The rear end of the upper magnet is magnetically attracted to the front end of the first magnetic block, and the front end of the lower magnet is magnetically attracted to the rear end of the second magnetic block.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, through the mutual cooperation between the structures such as the cutting head, the grinding tool and its rotating mechanism, after the workpiece to be processed is clamped, the movable plate is moved to the right, so that the fixed column and the rotating barrel are plugged, and then the reset column is moved to achieve the purpose of automatic rotation of 90 degrees, avoiding the need to release the limit of the moving pressure plate and then clamping and grinding, and the overall operation is more convenient.

[0024] 2. In the present invention, by cooperating with each other between the clamping mechanism and other structures, the workpiece to be processed is clamped and fixed by the threaded rod and its fixing column, and then the left end of the threaded rod is grasped and moved to the right, thereby avoiding manual holding of the workpiece and reducing the possibility of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an overall three-dimensional schematic diagram of a chamfering grinding jig proposed by the present invention;

[0026] Figure 2 This is a schematic overall perspective view of a threaded rod of a chamfering grinding jig proposed in the present invention;

[0027] Figure 3 This is a schematic diagram of the internal cross-section of a movable plate of a chamfering grinding jig proposed in the present invention;

[0028] Figure 4 This is a schematic diagram of the enlarged structure of point A of a chamfering grinding jig proposed in the present invention;

[0029] Figure 5 This is a schematic diagram of the internal cross-section of a support block of a chamfering grinding jig proposed in the present invention;

[0030] Figure 6 This is a schematic diagram of the internal cross-section of an elastic telescopic rod of a chamfering grinding jig proposed in the present invention;

[0031] Figure 7 This is a schematic overall three-dimensional diagram of a rotating barrel of a chamfering grinding jig proposed by the present invention.

[0032] Legend:

[0033] 1. Base; 2. Cutting head; 3. Abrasive; 4. Rotating mechanism; 401. Support block; 402. Fixed column; 403. Rotating barrel; 404. Elastic telescopic rod; 405. Connecting frame; 406. Support column; 407. Connecting spring; 408. Plug column; 409. Reset column; 410. Reset spring; 5. Clamping mechanism; 501. Positioning plate; 502. Threaded rod; 503. Limiting column; 504. Rotating plate; 507. Magnetic block 1; 508. Magnet; 509. Magnetic block 2; 6. Movable plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Reference Figure 1 The utility model provides an embodiment: a chamfering grinding jig, comprising a base 1, a cutting head 2 is rotatably connected to the front side of the top of the base 1, and the cutting head 2 is driven by a motor to perform grinding. This is a prior art and will not be explained in detail here. A grinding tool 3 is detachably mounted on the top of the base 1, and the grinding tool 3 is used for grinding the chamfered mold. This is a prior art and will not be explained in detail here. The front end of the grinding tool 3 is slidably connected to a movable plate 6, and the movable plate 6 is set to a concave shape, and the whole can be moved laterally. A rotating mechanism 4 is provided at the top right side of the movable plate 6; the rotating mechanism 4 can make the parts rotate during grinding, thereby performing secondary grinding.

[0036] Reference Figure 2 、 Figure 5 and Figure 6The rotating mechanism 4 includes a support block 401, which is set to be L-shaped. The right inner wall of the movable plate 6 is rotatably connected to the fixed column 402, and the movement trajectories of the two are consistent. The right end of the movable plate 6 is fixedly connected to the support column 406, and the movement of the movable plate 6 drives the support column 406 to move. The inner wall of the support block 401 is elastically connected to the plug-in column 408 through the connecting spring 407. The bottom end of the plug-in column 408 is provided with an inclined surface, which faces forward. The inclined surface is set to play a one-way limit role. The right end of the cutting head 2 is fixedly connected to the connecting frame 405. The shape of the connecting frame 405 is L-shaped. The left side of the connecting frame 405 is fixedly connected to the elastic The elastic telescopic rod 404 is composed of two sets of rods that are socketed with each other, and relative sliding can occur between them to change the overall length. In addition, the elastic telescopic rod 404 is equipped with a spring to make it have a certain elasticity. The inner wall of the movable end of the elastic telescopic rod 404 is elastically connected to the reset column 409 through the reset spring 410. The top of the reset column 409 is set to a spherical surface, which is convenient for movement. The left side of the connecting frame 405 is rotatably connected to the rotating barrel 403, and the rotating barrel 403 can rotate ninety degrees. The left end of the movable plate 6 is provided with a clamping mechanism 5. The setting of the clamping mechanism 5 can avoid manual holding of the workpiece to be polished.

[0037] Reference Figure 1-Figure 3 One end of the connecting spring 407 is fixedly connected to the inner wall of the support block 401, and the other end of the connecting spring 407 is fixedly connected to the outer wall of the plug-in column 408. The outer wall of the plug-in column 408 passes through and is slidably connected to the inner wall of the support block 401. The bottom end of the plug-in column 408 is plugged into the inner wall of the fixed column 402. The elasticity of the connecting spring 407 makes the plug-in column 408 have the functions of reset and one-way limit. One end of the reset spring 410 is fixedly connected to the outer wall of the reset column 409, and the other end of the reset spring 410 is fixedly connected to the inner wall of the movable end of the elastic telescopic rod 404. The outer wall of the reset column 409 is slidably connected to the inner wall of the movable end of the elastic telescopic rod 404. The elasticity of the reset spring 410 makes the reset column 409 have a reset function, which can drive the rotating barrel 403 to rotate ninety degrees.

[0038] Reference Figure 3 、 Figure 6 and Figure 7The outer wall of the rotating barrel 403 is provided with an arc groove, and the top of the reset column 409 contacts the inner wall of the arc groove. The arc groove is composed of a vertical groove and an arc groove, and the thickness of the vertical groove in the arc groove gradually increases from left to right, so as to ensure that the reset column 409 can enter the right end of the arc groove from the vertical groove, thereby driving the rotating barrel 403 to rotate, and the right end of the fixed column 402 is plugged into the inner wall of the rotating barrel 403. The plugging of the two enables the rotating barrel 403 to drive the fixed column 402 to rotate, and the right end of the support column 406 contacts the left end of the elastic telescopic rod 404. The contact between the two causes the movable end of the elastic telescopic rod 404 to move to the right, and the bottom end of the support block 401 is fixedly connected to the top right side of the movable plate 6. Through the setting of the movable plate 6, the support block 401 can play a supporting role.

[0039] Reference Figure 1-Figure 2 and Figure 4 The clamping mechanism 5 includes a rotating plate 504, the outer wall of the rotating plate 504 is rotatably connected to the inner wall of the left end of the movable plate 6, and the rotation of the rotating plate 504 can drive the workpiece to be processed for processing and polishing. The inner wall of the rotating plate 504 is threadedly connected with a threaded rod 502, and the setting of the threaded rod 502 can move laterally, thereby achieving the clamping purpose. The inner wall of the left end of the movable plate 6 is slidably connected to the limiting column 503, and the limiting column 503 can plug and fix the rotating plate 504. The front side of the left end of the movable plate 6 is fixedly connected to the positioning plate 501, and the top of the positioning plate 501 is fixedly connected to the magnetic block 2 509. The positioning plate 501 can support and fix the magnetic block 2 509, and the front end of the movable plate 6 is fixedly connected to the magnetic block 1 507, the movable plate 6 can support the magnetic block 1 507, and the upper and lower ends of the limiting column 503 are fixedly connected to the magnet 508, and the movement of the limiting column 503 drives the magnet 508 to move horizontally. The rear end of the limiting column 503 is plugged into the inner wall of the rotating plate 504, and the two are plugged together to achieve the purpose of fixation. The rear end of the upper magnet 508 is magnetically attracted to the front end of the magnetic block 1 507, and the front end of the magnetic block 1 507 is the negative pole, and the rear end of the upper magnet 508 is the positive pole. The front end of the lower magnet 508 is magnetically attracted to the rear end of the magnetic block 2 509, and the front end of the lower magnet 508 is the negative pole, and the rear end of the magnetic block 2 509 is the positive pole. The positive and negative pole settings can limit and fix the limiting column 503.

[0040] Working principle: When the workpiece needs to be polished, the magnetic block 1 507 is first attracted to the magnet 508, so that the limiting column 503 is plugged and fixed to the rotating plate 504, and then the threaded rod 502 is rotated to make the threaded rod 502 move to the right, and then the workpiece is clamped with the fixed column 402 through the left end of the fixed column 402 and the right end of the threaded rod 502, so that one of the four corners of the workpiece corresponds to the angle of the grinding tool 3, and then the limiting column 503 is moved forward so that the magnet 508 at the lower end is attracted to the magnetic block 2 509, thereby fixing the limiting column 503 and the limiting column 503 is not plugged into the rotating plate 504 at this time, and then the movable plate 6 is moved to the right. When the movable plate 6 moves to the right, the fixed column 402 is plugged into the rotating barrel 403, and the support column 406 is continued to move to the right to contact the left end of the elastic telescopic rod 404. When the two are in contact, the support column 406 will squeeze The movable end of the elastic telescopic rod 404 is pressed, thereby causing the movable end to move to the right, driving the reset column 409 to move to the right. When the reset column 409 moves, due to the increase in the thickness of the vertical groove, the reset column 409 will move downward a certain distance until the reset column 409 moves to the rightmost end of the vertical groove. At this time, due to the elasticity of the reset spring 410, the reset column 409 is reset and contacts the inner wall of the arc groove (at this time, the reset column 409 is stuck on the inner wall of the arc groove, not the inner wall of the vertical groove), and then changes to move to the left. At this time, due to the elasticity of the elastic telescopic rod 404, the movable end and its reset column 409 move to the left, and the reset column 409 moves on the inner wall of the arc groove to drive the rotating barrel 403 to rotate ninety degrees, so that the other corner of the workpiece can be polished. The operation is simple and convenient. At the same time, the operator can hold the left end of the threaded rod 502 to avoid manual direct holding of the workpiece and reduce the possibility of accidents.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A chamfering grinding jig, comprising a base (1), characterized in that: The cutting head (2) is rotatably connected to the front side of the top of the base (1), a grinding tool (3) is detachably mounted on the top of the base (1), a movable plate (6) is slidably connected to the front end of the grinding tool (3), and a rotating mechanism (4) is provided at the top right side of the movable plate (6); The rotating mechanism (4) comprises a supporting block (401), the right inner wall of the movable plate (6) is rotatably connected to a fixed column (402), the right end of the movable plate (6) is fixedly connected to a supporting column (406), the inner wall of the supporting block (401) is elastically connected to a plug-in column (408) via a connecting spring (407), the right end of the cutting head (2) is fixedly connected to a connecting frame (405), the left side of the connecting frame (405) is fixedly connected to an elastic telescopic rod (404), the inner wall of the movable end of the elastic telescopic rod (404) is elastically connected to a reset column (409) via a reset spring (410), the left side of the connecting frame (405) is rotatably connected to a rotating barrel (403), and the left end of the movable plate (6) is provided with a clamping mechanism (5).

2. The chamfering grinding tool according to claim 1, characterized in that: One end of the connecting spring (407) is fixedly connected to the inner wall of the support block (401), and the other end of the connecting spring (407) is fixedly connected to the outer wall of the plug-in column (408). The outer wall of the plug-in column (408) passes through and is slidably connected to the inner wall of the support block (401), and the bottom end of the plug-in column (408) is plugged into the inner wall of the fixed column (402).

3. The chamfering grinding tool according to claim 1, characterized in that: One end of the reset spring (410) is fixedly connected to the outer wall of the reset column (409), and the other end of the reset spring (410) is fixedly connected to the inner wall of the movable end of the elastic telescopic rod (404). The outer wall of the reset column (409) is slidably connected to the inner wall of the movable end of the elastic telescopic rod (404).

4. The chamfering grinding tool according to claim 1, characterized in that: An arc-shaped groove is formed on the outer wall of the rotating barrel (403), and the top end of the reset column (409) contacts the inner wall of the arc-shaped groove.

5. The chamfering grinding tool according to claim 1, characterized in that: The right end of the fixed column (402) is inserted into the inner wall of the rotating barrel (403), the right end of the support column (406) contacts the left end of the elastic telescopic rod (404), and the bottom end of the support block (401) is fixedly connected to the top right side of the movable plate (6).

6. The chamfering grinding tool according to claim 1, characterized in that: The clamping mechanism (5) comprises a rotating plate (504), the outer wall of the rotating plate (504) is rotatably connected to the inner wall of the left end of the movable plate (6), the inner wall of the rotating plate (504) is threadedly connected to a threaded rod (502), the inner wall of the left end of the movable plate (6) is slidably connected to a limiting column (503), the front side of the left end of the movable plate (6) is fixedly connected to a positioning plate (501), the top end of the positioning plate (501) is fixedly connected to a second magnetic block (509), the front end of the movable plate (6) is fixedly connected to a first magnetic block (507), and the upper and lower ends of the limiting column (503) are fixedly connected to magnets (508).

7. The chamfering grinding tool according to claim 6, characterized in that: The rear end of the limiting column (503) is plugged into the inner wall of the rotating plate (504).

8. The chamfering grinding tool according to claim 6, characterized in that: The rear end of the upper magnet (508) is magnetically attracted to the front end of the first magnetic block (507), and the front end of the lower magnet (508) is magnetically attracted to the rear end of the second magnetic block (509).

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