Feeding assembly for passivating knife edge

Abstract

The utility model discloses a feeding assembly for passivating a knife edge, and relates to the technical field of mechanical conveying. The electric push rod is fixedly arranged in the middle of the upper side of the movable frame; the pushing end of the electric push rod penetrates through the movable frame and then is provided with a driving rod. The two rotating pieces are hinged into movable grooves formed in the bottom of the movable frame in a bilateral symmetry mode through hinge shafts correspondingly. The two rotating pieces are arranged on the front side and the rear side of the driving rod in a crossed mode. A strip groove is formed in the upper end of the rotating part; the supporting rod penetrates through and is fixed to the bottom end of the driving rod, and the front end and the rear end of the supporting rod penetrate through the corresponding strip grooves in a sliding mode; the two clamping frames are fixedly arranged on the inner walls of the vertical ends of the corresponding rotating pieces correspondingly. The two reinforcing assemblies are arranged in the corresponding clamping frames correspondingly. By reinforcing and clamping the handle part of the cutter, the phenomenon that the cutter is loosened and falls off during transmission is avoided, and the transmission efficiency and safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical conveying technology, specifically to a feeding assembly for blunting the cutting edge. Background Technology

[0002] During production, the cutting edge of a blunted cutting tool has micro-defects such as burrs and micro-serrations that are invisible to the naked eye, requiring edge treatment. In assembly line production, robotic arms or conveyor belts combined with a pushing structure are usually used to feed the cutting tool into a special blunting machine. Although both of these methods can reduce the intensity of manual operation, they suffer from insufficient positioning accuracy. When the size of the cutting tool changes, it can lead to unstable tool clamping, which can easily cause the tool to fall off during the clamping process. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing a simple, reasonably designed, and easy-to-use feeding assembly for blunting the cutting edge. By reinforcing and clamping the cutting tool shank, it prevents the cutting tool from loosening and falling off during transmission, thereby improving the efficiency and safety of transmission.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a support arm, which is mounted on the mechanical base of the robotic arm. A movable arm is mounted inside the support arm via a push cylinder, and the movable arm is configured with an inverted "L" shape. A movable frame is provided on the front side of the movable arm.

[0005] It also includes: an electric push rod, which is fixedly installed in the upper middle part of the movable frame; a drive rod is provided after the pushing end of the electric push rod passes through the movable frame; two rotating parts, which are respectively hinged to each other in the movable slots symmetrically opened on the left and right sides of the bottom of the movable frame; and the two rotating parts are arranged crosswise on the front and rear sides of the drive rod; a groove is provided at the upper end of the rotating part; a support rod, which passes through and is fixed to the bottom end of the drive rod, and the front and rear ends of the support rod slide through the corresponding grooves; two clamping frames, which are respectively fixedly installed on the inner wall of the vertical end of the corresponding rotating part; and two reinforcing components, which are respectively installed in the corresponding clamping frames.

[0006] With the above technical solution design, the cutting tool is inserted into the left and right clamping frames. By activating the electric push rod, the drive rod moves, and the support rod moves to drive the rotating part, causing the rotating part to rotate around the hinge center. The two clamping frames form an initial clamping of the cutting tool. Finally, the clamping tool is further reinforced by the reinforcement component.

[0007] As a further improvement of this utility model, the reinforcing component includes: an eccentric wheel, which is disposed in a groove opened in the horizontal end of the upper side of the clamping frame; a rotating motor, which is fixedly disposed on the outer wall of the upper horizontal end of the clamping frame by a motor bracket, and the output shaft of the rotating motor passes through the side wall of the clamping frame and is inserted into and fixed in the eccentric wheel; a fixed platform, which is fixedly disposed on the inner wall of the vertical end of the clamping frame, and a moving rod is disposed inside the fixed platform; a protruding handle, which is fixedly disposed on the upper end of the moving rod and is located below the eccentric wheel; a return spring, which is movably sleeved on the moving rod, and the upper end of the return spring is connected to the protruding handle, and the lower end of the return spring is connected to the fixed platform; and a limiting block, which is slidably disposed in the vertical end of the clamping frame and fixedly disposed on the lower end of the moving rod.

[0008] By designing the above technical solution, starting the rotating motor causes the eccentric wheel to rotate, which in turn presses the cam shank, compressing the return spring. The moving rod then moves downwards, causing the limit block to move and press against the tool holder.

[0009] As a further improvement of this utility model, the bottom of the limiting block is provided with a rubber anti-slip pad layer.

[0010] The above technical solution design avoids indentation while clamping the tool.

[0011] As a further improvement of this utility model, a No. 1 support block is fixedly provided on the front side of the vertical end of the rotating part on the left side, and the front side of the No. 1 support block and the front side of the rotating part on the right side are arranged on the same vertical plane; a No. 2 support block is fixedly provided on the rear side of the vertical end of the rotating part on the right side, and the rear side of the No. 2 support block and the rear side of the rotating part on the left side are arranged on the same vertical plane.

[0012] Through the above technical solution design, the No. 1 support block and the No. 2 support block make the specifications of the two rotating parts on the left and right consistent, so as to provide stable support for the clamping frame.

[0013] As a further improvement of this utility model, a connecting platform is fixedly provided on the upper rear side of the movable frame, a connecting groove is provided in the horizontal end of the movable arm, the connecting platform is provided in the connecting groove, a steering motor is provided on the horizontal end of the movable arm, and the output shaft of the rotating motor passes through the movable arm and is inserted and fixed in the connecting platform.

[0014] By designing the above technical solution, starting the steering motor can drive the movable frame to change its angle, thereby changing the clamping angle of the tool.

[0015] The working principle of this utility model is as follows: The cutting tool is inserted into the left and right clamping frames. By activating the electric push rod, the drive rod moves, which in turn drives the rotating component to rotate around the hinge center. The two clamping frames initially clamp the cutting tool. Then, the rotary motor is activated, causing the eccentric wheel to rotate and press against the cam shank. This compresses the return spring, and the moving rod moves downward, causing the limiting block to move and press against the cutting tool shank, thus reinforcing and tightening it. At the same time, the rubber anti-slip pad at the bottom of the limiting block protects the cutting tool shank from pressure damage. Finally, the steering motor is activated to change the direction of the cutting tool for the next process.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The two rotating parts on the left and right are arranged in a cross pattern. Under the push of the electric push rod, the two rotating parts rotate relative to each other around their respective screw joint centers, so that the clamping frame clamps synchronously.

[0018] 2. Add a limiting block inside the clamping frame, and press the limiting block to press it firmly onto the tool holder to prevent the tool holder from not fitting properly between the clamping frame and the tool holder.

[0019] 3. When the eccentric wheel presses against the convex shank, the return spring is compressed, which drives the connecting rod, causing the limit block to press firmly against the tool holder and prevent it from moving, thus improving the tightness of the tool holder clamping. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the connection structure of the rotating component in this utility model.

[0022] Figure 3 This is a schematic diagram of the internal structure of the clamping frame in this utility model.

[0023] Figure 4 This is a schematic diagram of the structure in a specific embodiment where the tool handle is clamped inside the clamping frame.

[0024] Explanation of reference numerals in the attached drawings: 1. Support arm; 2. Movable arm; 3. Movable frame; 4. Electric push rod; 5. Drive rod; 6. Rotating component; 6-1. Groove; 7. Support rod; 8. Clamping frame; 9. Reinforcing assembly; 9. Eccentric wheel; 9-1. Rotating motor; 9-2. Fixed platform; 9-3. Moving rod; 9-4. Protruding handle; 9-5. Return spring; 9-6. Limiting block; 9-7. Rubber anti-slip pad; 9-8. Support block 1; 10. Support block 2; 11. Connecting platform; 12. Steering motor; 13. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example 1

[0026] Please see Figures 1-4 This embodiment includes a support arm 1, which is mounted on the mechanical base of the robotic arm. A movable arm 2 is mounted inside the support arm 1 via a push cylinder, and the movable arm 2 has an inverted "L" shape. A movable frame 3 is mounted on the front side of the movable arm 2. A connecting platform 12 is fixedly mounted on the upper rear side of the movable frame 3. A connecting groove is provided in the horizontal end of the movable arm 2, and the connecting platform 12 is located in the connecting groove. A steering motor 13 is mounted on the horizontal end of the movable arm 2. The output shaft of the rotating motor 9-2 passes through the movable arm 2 and is inserted and fixed in the connecting platform 12.

[0027] Also includes:

[0028] The electric push rod 4 is fixedly installed in the upper middle part of the movable frame 3; the specific model of the electric push rod 4 is purchased directly from the market and installed and used according to actual usage requirements; after the pushing end of the electric push rod 4 passes through the movable frame 3, a drive rod 5 is provided.

[0029] Two rotating components 6 are respectively hinged to each other and installed in symmetrical movable slots at the bottom of the movable frame 3. The two rotating components 6 are arranged crosswise on the front and rear sides of the drive rod 5. A groove 6-1 is provided at the upper end of the rotating component 6. A first support block 10 is fixedly installed on the front side of the vertical end of the left rotating component 6, and the front side of the first support block 10 is arranged on the same vertical plane as the front side of the right rotating component 6. A second support block 11 is fixedly installed on the rear side of the vertical end of the right rotating component 6, and the rear side of the second support block 11 is arranged on the same vertical plane as the rear side of the left rotating component 6.

[0030] Support rod 7, which is inserted through and fixed to the bottom end of drive rod 5, and the front and rear ends of support rod 7 are respectively slidably inserted into the corresponding grooves 6-1;

[0031] Clamping frame 8, there are two clamping frames 8, which are respectively fixedly installed on the inner wall of the vertical end of the corresponding rotating part 6;

[0032] Reinforcing component 9, there are two reinforcing components 9, which are respectively disposed in the corresponding clamping frame 8;

[0033] With the above technical solution design, the cutting tool is inserted into the left and right clamping frames 8. By activating the electric push rod 4, the drive rod 5 is moved, and the support rod 7 is moved to drive the rotating part 6, so that the rotating part 6 rotates around the hinge center. The two clamping frames 8 form an initial clamping of the cutting tool. Finally, the clamping tool is further reinforced by the reinforcing component 9. Example 2

[0034] Please see Figures 1-4 Based on Embodiment 1, a further improvement is made, wherein the reinforcing component 9 comprises:

[0035] Eccentric wheel 9-1, wherein the eccentric wheel 9-1 is disposed in a groove opened in the horizontal end of the upper side of the clamping frame 8;

[0036] The rotating motor 9-2 is fixedly mounted on the outer wall of the upper horizontal end of the clamping frame 8 by a motor bracket. The specific model of the rotating motor 9-2 is purchased and installed directly from the market according to the actual usage requirements. The output shaft of the rotating motor 9-2 passes through the side wall of the clamping frame 8 and is inserted and fixed inside the eccentric wheel 9-1.

[0037] The fixed platform 9-3 is fixedly installed on the inner wall of the vertical end of the clamping frame 8, and a movable rod 9-4 passes through the fixed platform 9-3.

[0038] The convex handle 9-5 is fixedly installed at the upper end of the moving rod 9-4, and the convex handle 9-5 is located on the lower side of the eccentric wheel 9-1.

[0039] The return spring 9-6 is movably sleeved on the moving rod 9-4, and the upper end of the return spring 9-6 is connected to the protruding handle 9-5, and the bottom end of the return spring 9-6 is connected to the fixed platform 9-3.

[0040] Limiting block 9-7 is slidably disposed within the vertical end of clamping frame 8 and fixedly disposed at the bottom end of moving rod 9-4; a rubber anti-slip pad layer 9-8 is provided at the bottom of limiting block 9-7.

[0041] Through the above technical solution design, the rotating motor 9-2 is started, causing the eccentric wheel 9-1 to rotate, which presses the cam 9-5, causing the return spring 9-6 to be compressed, and the moving rod 9-4 drives the limit block 9-7 to move downward, so as to press it on the tool holder.

[0042] When using this utility model, the cutting tool is inserted into the left and right clamping frames 8. By activating the electric push rod 4, the drive rod 5 is moved, and the support rod 7 moves to drive the rotating part 6, causing the rotating part 6 to rotate around the hinge center. The two clamping frames 8 initially clamp the cutting tool. Then, the rotary motor 9-2 is activated, causing the eccentric wheel 9-1 to rotate and press against the convex shank 9-5, compressing the return spring 9-6. The moving rod 9-4 moves downward to move the limiting block 9-7 to press it against the tool holder, thus reinforcing and tightening the tool holder. At the same time, the rubber anti-slip pad 9-8 at the bottom of the limiting block 9-7 protects the tool holder from pressure damage. Finally, the steering motor 13 is activated to change the direction of the cutting tool for the next process.

[0043] Compared with the prior art, the beneficial effects of this utility model are:

[0044] 1. The two rotating parts 6 are arranged in a cross configuration, and under the push of the electric push rod 4, the two rotating parts 6 rotate relative to each other around their respective screw joint centers, so that the clamping frame 8 clamps synchronously.

[0045] 2. Add a limiting block 9-7 inside the clamping frame 8, and press the limiting block 9-7 to press it firmly onto the tool holder, so as to avoid the tool holder not being fully fitted between the clamping frame 8;

[0046] 3. When the eccentric wheel 9-1 presses against the convex shank 9-5, the return spring 9-6 is compressed, which drives the connecting rod and makes the limit block 9-7 press against the tool holder so that it cannot move, thus improving the tightness of the tool holder clamping.

[0047] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A feeding assembly for blunting a cutting edge, comprising a support arm (1), the support arm (1) being mounted on a mechanical base of a robotic arm, a movable arm (2) being mounted inside the support arm (1) via a push cylinder, the movable arm (2) being configured in an inverted "L" shape, and a movable frame (3) being provided on the front side of the movable arm (2); characterized in that, It also includes: an electric push rod (4), which is fixedly installed in the upper middle part of the movable frame (3); the pushing end of the electric push rod (4) passes through the movable frame (3) and is provided with a drive rod (5); a rotating part (6), which consists of two rotating parts (6), which are respectively hinged to the movable slots symmetrically opened on the left and right sides of the bottom of the movable frame (3) through a hinge shaft; and the two rotating parts (6) are arranged crosswise on the front and rear sides of the drive rod (5); the upper end of the rotating part (6) is provided with a groove (6-1); a support rod (7), which is inserted through and fixed to the bottom end of the drive rod (5), and the front and rear ends of the support rod (7) are respectively slidably inserted through the corresponding grooves (6-1); a clamping frame (8), which consists of two clamping frames (8), which are respectively fixedly installed on the inner wall of the vertical end of the corresponding rotating part (6); and a reinforcing component (9), which consists of two reinforcing components (9), which are respectively installed in the corresponding clamping frame (8).

2. A feed assembly for a blunt edge according to claim 1, wherein: The reinforcement component (9) includes: an eccentric wheel (9-1), which is disposed in a groove opened in the horizontal end of the upper side of the clamping frame (8); a rotating motor (9-2), which is fixedly disposed on the outer wall of the upper horizontal end of the clamping frame (8) by a motor bracket, and the output shaft of the rotating motor (9-2) passes through the side wall of the clamping frame (8) and is inserted and fixed in the eccentric wheel (9-1); and a fixed platform (9-3), which is fixedly disposed on the inner wall of the vertical end of the clamping frame (8), and a moving rod (9-4) is inserted in the fixed platform (9-3). A protruding shank (9-5) is fixedly mounted on the upper end of the moving rod (9-4) and positioned below the eccentric wheel (9-1); a return spring (9-6) is movably sleeved on the moving rod (9-4), with its upper end connected to the protruding shank (9-5) and its lower end connected to the fixed platform (9-3); a limiting block (9-7) is slidably mounted inside the vertical end of the clamping frame (8) and fixedly mounted on the lower end of the moving rod (9-4).

3. A feed assembly for a blunt edge according to claim 2, wherein: The bottom of the limiting block (9-7) is provided with a rubber anti-slip pad layer (9-8).

4. A feeding assembly for passivating cutting edges according to claim 1, characterized in that: A first support block (10) is fixedly installed on the front side of the vertical end of the rotating part (6) on the left side. The front side of the first support block (10) and the front side of the rotating part (6) on the right side are set on the same vertical plane. A second support block (11) is fixedly installed on the rear side of the vertical end of the rotating part (6) on the right side. The rear side of the second support block (11) and the rear side of the rotating part (6) on the left side are set on the same vertical plane.

5. A feed assembly for a blunt edge according to claim 1, wherein: A connecting platform (12) is fixedly installed on the upper rear side of the movable frame (3). A connecting groove is provided in the horizontal end of the movable arm (2). The connecting platform (12) is installed in the connecting groove. A steering motor (13) is installed on the horizontal end of the movable arm (2). The output shaft of the rotating motor (9-2) passes through the movable arm (2) and is inserted and fixed in the connecting platform (12).

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