A burr removing device for pin shaft machining

Abstract

The utility model discloses a burr removal device for pin shaft processing belongs to mechanical part processing equipment technical field, and the burr removal device is characterized by comprising a grinding machine, a work table and a limiting mechanism, the grinding machine and limiting mechanism all are arranged on work table top, and the grinding machine is fixedly connected with the work table, and the limiting mechanism is arranged below the polishing head, and the limiting mechanism includes V type block and two groups of jacks, and the jack is arranged at the both ends of V type block, and the opening direction of V type block faces the polishing head, and the pin shaft is arranged above V type block, and the axis of pin shaft is perpendicular to the axis of polishing head, when the grinding machine works, and the both ends of pin shaft abut against the jack, and V type groove is opened in the inside of V type block, and a plurality of receiving rollers are connected with the inside bearing of V type groove, and the receiving roller is arranged along the shape of V type groove, and the top of the outer circle of receiving roller is higher than the groove surface of V type groove, and the axis of receiving roller is parallel to the axis of pin shaft, and the device solves the problem that the fixing mechanism of existing pin shaft burr removal device is damaged to pin shaft.

Description

Technical Field

[0001] This utility model belongs to the technical field of mechanical parts processing equipment, and specifically relates to a burr removal device for pin processing. Background Technology

[0002] Pins are core components in mechanical transmission and connection. After processing such as cutting, stamping, and forging, pins inevitably develop defects such as burrs and flash on their end faces and circumferential edges. These burrs not only affect the assembly accuracy of the pins and their matching parts, but may also fall off during equipment operation, causing wear on mating surfaces, blockage of oil passages, and other malfunctions, which seriously reduce the overall stability and service life of the machine.

[0003] However, the fixing devices used in pin burr removal operations have significant technical defects. Existing fixing devices mostly adopt rigid clamping structures, which make hard contact with the pin surface, easily scratching the outer diameter reference surface of the pin. During grinding, the force will cause slight deformation, which can easily lead to stress concentration at the clamping area, resulting in local deformation of the pin. Therefore, this phenomenon has become a problem that urgently needs to be solved by those in the field. Utility Model Content

[0004] The purpose of this invention is to provide a burr removal device for pin processing, which aims to solve the problem that the fixing mechanism of the existing pin burr removal device damages the pin.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a burr removal device for pin processing, including a grinder, a worktable, and a limiting mechanism. The grinder and the limiting mechanism are both set above the worktable. The grinder is fixedly connected to the worktable. The limiting mechanism is set below the grinding head. The limiting mechanism includes a V-block and two sets of top blocks. The top blocks are set at both ends of the V-block. The opening of the V-block faces the grinding head. A pin is set above the V-block. The axis of the pin is perpendicular to the axis of the grinding head. When the grinder is working, both ends of the pin abut against the top blocks.

[0006] The present invention further explains that the V-shaped block has a V-shaped groove inside, and multiple receiving rollers are connected to the bearing inside the V-shaped groove. The receiving rollers are arranged along the shape of the V-shaped groove, and the top of the outer circle of the receiving roller is higher than the groove surface of the V-shaped groove. The axis of the receiving roller is parallel to the axis of the pin.

[0007] The present invention further explains that cylinders are fixedly connected to both ends of the V-shaped block along the axis of the receiving roller, the push rod of the cylinder is fixedly connected to the top block, the top block is spindle-shaped, and the edge of the top block is adapted to the shape of the V-shaped block.

[0008] This utility model further explains that multiple balls are embedded on the opposite side of the two top blocks. The balls are raised relative to the top block layer. When the grinder is working, the two ends of the pin abut against the balls. The pin and the balls rotate relative to the cylinder, avoiding end face collisions caused by hard contact between the planes.

[0009] This utility model further illustrates that multiple sliders and a drive block are fixedly connected below the mobile platform, and slide rails are slidably connected below the sliders. The slide rails are located at both ends below the mobile platform, and each slide rail is fixedly connected to the worktable below.

[0010] The present invention further explains that a movable stage is fixedly connected below the V-shaped block, and a drive block is located in the center below the movable stage. A screw is threadedly connected to the center of the drive block, and bearing seats are connected to the bearings at both ends of the screw. The bearing seats are bolted to the worktable. A servo motor is fixedly connected to the bearing seat away from the grinder. The output shaft of the servo motor is keyed to the screw. By driving the servo motor to operate, the entire movable stage is moved away from or closer to the grinder.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: By setting a receiving roller in the V-groove, and with the top of the receiving roller higher than the groove surface of the V-groove, the receiving roller rotates synchronously with the pin during grinding, which can effectively prevent scratches on the surface of the pin; by using a top block with raised balls, the axial positioning of the pin is achieved, and the raised balls can avoid hard impact damage to the end face of the pin. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the limiting mechanism structure of this utility model; Figure 3 This is a schematic diagram of the mobile platform of this utility model from a lower angle; In the diagram: 1. Grinding machine; 2. Workbench; 3. Limiting mechanism; 4. V-block; 5. Top block; 6. V-groove; 7. Receiving roller; 8. Cylinder; 9. Ball bearing; 10. Servo motor; 11. Bearing seat; 12. Moving table; 13. Screw; 14. Slider; 15. Slide rail; 16. Drive block. Detailed Implementation

[0013] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0014] Please see Figure 1-3 This utility model provides a technical solution: a burr removal device for pin processing, including a grinder 1, a worktable 2, and a limiting mechanism 3. The grinder 1 and the limiting mechanism 3 are both located above the worktable 2. The grinder 1 is fixedly connected to the worktable 2. The grinder 1 consists of a grinder motor and a grinder head, which is existing technology and will not be described in detail. The limiting mechanism 3 is located below the grinder head. The limiting mechanism 3 includes a V-block 4 and two sets of top blocks 5. The top blocks 5 are located at both ends of the V-block 4. The opening of the V-block 4 faces the grinder head. A pin (not shown in the figure) is located above the V-block 4. The axis of the pin is perpendicular to the axis of the grinder head. When the grinder 1 is working, both ends of the pin abut against the top blocks 5.

[0015] The V-shaped block 4 has a V-shaped groove 6 inside, and multiple receiving rollers 7 are connected to the bearing inside the V-shaped groove 6. The receiving rollers 7 are arranged along the shape of the V-shaped groove 6, and the top of the outer circle of the receiving roller 7 is higher than the groove surface of the V-shaped groove 6. The axis of the receiving roller 7 is parallel to the axis of the pin.

[0016] Cylinders 8 are fixedly connected to both ends of the V-block 4 along the axis of the receiving roller 7. The push rod of the cylinder 8 is fixedly connected to the top block 5. The top block 5 is spindle-shaped, and the edge of the top block 5 is adapted to the shape of the V-block 4.

[0017] Multiple balls 9 are embedded on the opposite side of the two top blocks 5. The balls 9 are raised relative to the top blocks 5. When the grinder 1 is working, the two ends of the pin abut against the balls 9. The pin and the balls 9 rotate relative to the cylinder 8 to avoid the end face collision caused by hard contact between the planes.

[0018] A movable stage 12 is fixedly connected below the V-shaped block 4. Multiple sliders 14 and a drive block 16 are fixedly connected below the movable stage 12. Slide rails 15 are slidably connected below the sliders 14. The slide rails 15 are located at both ends below the movable stage 12. Each slide rail 15 is fixedly connected to the worktable 2 below.

[0019] The drive block 16 is located in the center below the moving table 12. The drive block 16 is threaded with a screw 13. The two ends of the screw 13 are connected to bearing seats 11. The bearing seats 11 are bolted to the worktable 2. The bearing seats 11 away from the grinder 1 are fixedly connected to a servo motor 10. The output shaft of the servo motor 10 is keyed to the screw 13. By driving the servo motor 10 to operate, the entire moving table 12 is moved away from or closer to the grinder 1.

[0020] Working principle: The pin is placed on the receiving roller 7, with the top of the receiving roller 7 higher than the groove surface of the V-groove 6, so that the pin cannot directly contact the groove surface of the V-groove 6. The driving cylinder 8 operates, and the push rod moves the top block 5 towards the pin. The ball bearing 9 abuts against both ends of the pin. The non-planar design can avoid hard impact damage to the end face of the pin, and at the same time restrict the axial position of the pin during grinding to prevent movement. According to the grinding requirements for burr removal, the servo motor 10 is started, and the output shaft drives the screw 13 to rotate, thereby driving the drive block 16 to move along the screw 13, and then driving the entire moving table 12 and the V-block 4 to move closer to the grinder 1 until the pin is located in the working position below the grinder 1. The grinder 1 is then started to perform the operation.

[0021] During the grinding process, the ball bearing 9 rotates with the pin, and the receiving roller 7 rotates synchronously with the pin, ensuring the uniformity of grinding and preventing scratches and rigid extrusion deformation on the pin surface.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A burr removal device for pin machining, comprising a grinder (1), a worktable (2), and a limiting mechanism (3), characterized in that: The grinding machine (1) and the limiting mechanism (3) are both located above the workbench (2). The grinding machine (1) is fixedly connected to the workbench (2). The limiting mechanism (3) is located below the grinding head. The limiting mechanism (3) includes a V-block (4) and two sets of top blocks (5). The top blocks (5) are located at both ends of the V-block (4). The opening of the V-block (4) faces the grinding head. A pin is located above the V-block (4). The axis of the pin is perpendicular to the axis of the grinding head. When the grinding machine (1) is working, both ends of the pin abut against the top blocks (5).

2. The burr removal device for pin processing according to claim 1, characterized in that: The V-shaped block (4) has a V-shaped groove (6) inside. Multiple receiving rollers (7) are connected to the bearing inside the V-shaped groove (6). The receiving rollers (7) are arranged along the shape of the V-shaped groove (6). The top of the outer circle of the receiving roller (7) is higher than the groove surface of the V-shaped groove (6). The axis of the receiving roller (7) is parallel to the axis of the pin.

3. The burr removal device for pin processing according to claim 2, characterized in that: The V-shaped block (4) is fixedly connected to cylinders (8) at both ends along the axis of the receiving roller (7). The push rod of the cylinder (8) is fixedly connected to the top block (5). The top block (5) is spindle-shaped, and the edge of the top block (5) is adapted to the shape of the V-shaped block (4).

4. The burr removal device for pin processing according to claim 3, characterized in that: Multiple balls (9) are embedded on the opposite side of the two top blocks (5). The balls (9) are raised relative to the top blocks (5). When the grinder (1) is working, the two ends of the pin abut against the balls (9), and the pin and the balls (9) rotate relative to the cylinder (8).

5. The burr removal device for pin processing according to claim 4, characterized in that: A movable platform (12) is fixedly connected below the V-shaped block (4). Multiple sliders (14) and a drive block (16) are fixedly connected below the movable platform (12). A slide rail (15) is slidably connected below the slider (14). The slide rail (15) is located at both ends below the movable platform (12). Each slide rail (15) is fixedly connected to the worktable (2).

6. The burr removal device for pin machining according to claim 5, characterized in that: The drive block (16) is located in the center below the moving table (12). The drive block (16) is threaded with a screw (13). The screw (13) is connected to bearing seats (11) at both ends. The bearing seats (11) are bolted to the worktable (2). The bearing seats (11) away from the grinder (1) are fixedly connected to a servo motor (10). The output shaft of the servo motor (10) is keyed to the screw (13).

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