Long shaft graining device

Abstract

The utility model relates to the technical field of hardware machining, in particular to a long shaft graining device which comprises a base, an upper die plate, a lower die plate and a height adjuster, the height adjuster is fixedly arranged at the top of the base, a fixing seat is fixedly arranged at the top of the height adjuster, and the lower die plate is fixedly installed at the top of the fixing seat. An upper die plate is arranged above the lower die plate through a knurling device, mounting blocks are fixedly arranged on the left side and the right side of the fixing base, the knurling device can conduct knurling on the long-shaft part, the two ends of the long-shaft part can be lifted up and limited through a U-shaped base and a clamping roller, the long-shaft part can be kept balanced and horizontal during knurling, and the knurling device can be used for knurling the long-shaft part. And the knurling device can adapt to long shafts with different lengths and diameters through sliding of the adjusting frame and moving of the clamping rollers, the application range is wider, the positions of the long shafts in the front-back direction can be adjusted through sliding of the adjusting frame, and knurling can be conducted on different positions of long shaft parts.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware processing, in particular to a long-axis rubbing device. Background Art

[0002] Lathes, milling machines, drilling machines, grinders, and other equipment are used to process various hardware components, such as screws, plates, shafts, and more. Knurling is a metalworking process that mechanically rolls patterns onto handles or other working surfaces of metal products, primarily for anti-slip purposes. Application number CN202122391969.4 describes an automatic knurling device, comprising a frame and a table mounted on the frame. The device features a height adjuster that allows for adjustment of heights for different product specifications, accommodating the processing of a wide range of product sizes. It offers flexibility and versatility, along with a rational structural design, high efficiency, long mold life, and enhanced safety. Compared to traditional knurling methods, it significantly reduces production costs. However, for some long shaft parts, due to the lack of a device to limit the ends of the shaft, the shaft may deform slightly due to gravity and vibration when placed on the lower mold, resulting in uneven knurling. Furthermore, knurling at non-center locations can cause imbalance, tilting, and even rolling due to center of gravity issues. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcoming of the prior art that there is a lack of a device for limiting the two ends of the long shaft, and to propose a long shaft rubbing device.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A long-axis knurling device is designed, including a base, an upper template, a lower template, and a height adjuster. The top of the base is fixed with a height adjuster, the top of the height adjuster is fixed with a fixed seat, and the top of the fixed seat is fixedly installed with the lower template, and the upper template is set above the lower template through a knurling device. Mounting blocks are fixed on the left and right sides of the fixed seat, and the front end surface of each mounting block is provided with an upper and lower socket, and an adjustment frame is slidably provided in the upper and lower sockets through a positioning device. The horizontal plates of the two adjustment frames are respectively arranged on the front and rear sides of the fixed seat, and the inner sides of the two adjustment frames are respectively fixed with cross bars, and the two pairs of cross bars are respectively The cam is fixed on the top of the U-shaped seat, and the cam is fixed on the top of the U-shaped seat. The cam is fixed on the bottom of the U-shaped seat with a short shaft located in the middle position through two vertical plates, and a bottom roller is rotatably provided on the short shaft. A pair of rectangular holes are opened on the left and right end surfaces of the U-shaped seat, and the U-shaped rods are inserted into the two rectangular holes. A pair of U-shaped rods are close to each other and are fixed with a horizontal shaft at one end located in the U-shaped seat, and a clamping roller is rotatably provided on the horizontal shaft. Tension springs are fixed on the left and right end surfaces of the U-shaped seat, and a pair of tension springs are fixed with ends away from each other to the cross bars outside the U-shaped seat.

[0006] Preferably, the knurling device includes a gantry, a fixed plate, and a guide rail. The top of the base is fixed with a gantry, and the top of the gantry is fixed with a driving device and a pair of guide rails. A pair of guide rails are provided with a slide groove near the end surface of the pair of guide rails, and a fixed plate driven by the driving device is slidably provided in the slide groove. The bottom of the fixed plate is fixedly installed with a template.

[0007] Preferably, a pair of baffles are provided with a plurality of spherical grooves on their end surfaces close to each other, and balls are rotatably arranged in the spherical grooves.

[0008] Preferably, the positioning device comprises a screw, a second sliding block, and a friction column. The outer wall of the left end of the mounting block is provided with a screw which is rotated through a U-shaped plate. The outer wall of the screw is threadedly connected to the second sliding block. A pair of friction columns are fixed to the right end of the second sliding block. The right end of the friction column passes through and is slidably connected to the mounting block. The right end faces of the two friction columns respectively abut against two adjustment frames.

[0009] Preferably, a handle is fixedly provided on the left end of the screw, and a tiny protrusion for increasing friction is provided on the right end surface of the friction column.

[0010] Preferably, the top of the baffle is integrally formed with an arc plate for facilitating the insertion of shaft parts.

[0011] Preferably, the driving device includes a motor, a disc, and a push rod. The motor is fixedly installed on the top of the gantry, the output shaft of the motor is fixedly connected to the disc, a push rod is rotatably provided at the eccentric point of the lower end surface of the disc, and the right end of the push rod is rotatably connected to the fixed plate.

[0012] The long shaft knurling device proposed by the utility model has the beneficial effects that: the long shaft knurling device can not only knurl the long shaft parts, but also support and limit the two ends of the long shaft parts through the U-shaped seat and the clamping roller, so that the long shaft parts can maintain balance and levelness during knurling, making the knurling more uniform and stable, and can adapt to long shafts of different lengths and diameters through the sliding of the adjustment frame and the movement of the clamping roller, so as to have a wider adaptability, and can adjust the position of the long shaft in the front and rear directions through the sliding of the adjustment frame, so as to perform knurling on different positions of the long shaft parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of a long-axis rubbing device proposed in the utility model;

[0014] Figure 2 This is a partial structural diagram of a long-axis rubbing device proposed in the present invention;

[0015] Figure 3 This is an enlarged view of area A of a long-axis rubbing device proposed in the present invention;

[0016] Figure 4 This is an enlarged view of area B of a long-axis rubbing device proposed in the present invention;

[0017] Figure 5 This is a schematic diagram of the bottom roller structure of a long-axis rubbing device proposed in the utility model.

[0018] In the figure: 1. Base; 2. Mounting block; 3. Gantry; 4. Motor; 5. Disc; 6. Push rod; 7. Fixed plate; 8. Guide rail; 9. Upper template; 10. U-shaped seat; 11. Arc plate; 12. Baffle; 13. First sliding block; 14. Adjustment frame; 15. Fixed seat; 16. Height adjuster; 17. Lower template; 18. Clamping roller; 19. Cross bar; 20. Bottom roller; 21. U-shaped rod; 22. Tension spring; 23. Ball bearing; 24. Screw; 25. Second sliding block; 26. Friction column. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-5A long-axis knurling device includes a base 1, an upper template 9, a lower template 17, and a height adjuster 16. The top of the base 1 is fixed with a height adjuster 16, and the top of the height adjuster 16 is fixed with a fixed seat 15, and the top of the fixed seat 15 is fixedly installed with the lower template 17. The upper template 9 is set above the lower template 17 through a knurling device. The left and right sides of the fixed seat 15 are fixed with mounting blocks 2. The front end surface of each mounting block 2 is provided with two upper and lower sockets, and the upper and lower sockets are slidably provided with an adjustment frame 14 through a positioning device. The horizontal plates of the two adjustment frames 14 are respectively arranged on the front and rear sides of the fixed seat 15. The inner sides of the two adjustment frames 14 are respectively fixed with cross bars 19, and the two pairs of cross bars 19 are respectively located On the front and rear sides of the fixed seat 15, the outer walls of each pair of cross bars 19 are respectively slidably provided with a first sliding block 13, and the top of the first sliding block 13 is fixed with a U-shaped seat 10, and the bottom of the U-shaped seat 10 is fixed with a short shaft located in the middle position through two vertical plates, and a bottom roller 20 is rotatably provided on the short shaft, and a pair of rectangular holes are opened on the left and right end surfaces of the U-shaped seat 10, and U-shaped rods 21 are inserted into the two rectangular holes, and a pair of U-shaped rods 21 are close to each other and are fixed with a cross shaft at one end located in the U-shaped seat 10, and a clamping roller 18 is rotatably provided on the cross shaft, and a tension spring 22 is fixed on the left and right end surfaces of the U-shaped seat 10, and a pair of tension springs 22 are fixed with one end away from each other to the cross bars outside the U-shaped seat 10.

[0021] The knurling device includes a gantry 3, a fixed plate 7, and a guide rail 8. The gantry 3 is fixed on the top of the base 1, and a driving device and a pair of guide rails 8 are fixed on the top of the gantry 3. A pair of guide rails 8 are provided with a slide groove near the end surface of the pair of guide rails 8, and a fixed plate 7 driven by the driving device is slidably provided in the slide groove. The bottom of the fixed plate 7 is fixedly installed with a template 9

[0022] A pair of baffles 12 have a plurality of spherical grooves formed on their adjacent end surfaces, and balls 23 are rotatably mounted in the spherical grooves.

[0023] The positioning device includes a screw 24, a second sliding block 25, and a friction column 26. The outer wall of the left end of the mounting block 2 is rotated with a screw 24 through a U-shaped plate. The outer wall of the screw 24 is threadedly connected to the second sliding block 25. A pair of friction columns 26 are fixed to the right end of the second sliding block 25. The right end of the friction column 26 passes through and is slidably connected to the mounting block 2. The right end faces of the two friction columns 26 respectively abut against the two adjustment frames 14.

[0024] A handle is fixed to the left end of the screw 24, and a tiny protrusion for increasing friction is provided on the right end surface of the friction column 26.

[0025] The top of the baffle 12 is integrally formed with an arc plate 11 for facilitating the insertion of shaft parts.

[0026] The driving device includes a motor 4, a disc 5, and a push rod 6. The motor 4 is fixedly installed on the top of the gantry 3, and the output shaft of the motor 4 is fixedly connected to the disc 5. A push rod 6 is rotatably provided at the eccentric part of the lower end surface of the disc 5, and the right end of the push rod 6 is rotatably connected to the fixed plate 7.

[0027] Working principle: When in use, the two ends of the long shaft are pressed into the U-shaped seat 10 through the arc plate 11 and are clamped by the two clamping rollers 18 squeezed inward by the tension spring 22 and limited by the bottom roller 20. After the long shaft is clamped in the front and rear directions by the baffle 12, the friction between the baffle 12 and the long shaft is reduced by the ball 23. The long shaft and the adjusting frame 14 are moved left and right until the position on the long shaft that requires knurling is directly below the upper template 9. After that, the screw 24 is rotated to make the second sliding block 25 drive the friction column 26 to move right to squeeze and fix the two adjusting frames 14. The fixed seat 15 is driven to rise by the height adjuster 16 so that the upper template 9 and the lower template 17 clamp the long shaft. The disc 5 is driven to rotate by the motor 4 and the fixed plate 7 and the upper template 9 are driven left and right by the push rod 6. While the upper template 9 rolls the long shaft, it drives the long shaft, the U-shaped seat 10, and the first sliding block 13 to slide left and right on the cross bar 19.

[0028] The knurling device can not only knurl long shaft parts, but also support and limit the two ends of the long shaft parts through the U-shaped seat 10 and the clamping roller 18, so that the parts can maintain balance and level during knurling, making the knurling more uniform and stable. The device can adapt to long shafts of different lengths and diameters through the sliding of the adjustment frame 14 and the movement of the clamping roller 18, and has a wider adaptability. The position of the long shaft in the front and rear directions can be adjusted by sliding the adjustment frame 14, so that different positions of the long shaft parts can be knurled.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A long-axis rubbing device, comprising a base (1), an upper template (9), a lower template (17), a height adjuster (16) and a baffle (12), characterized in that: A height adjuster (16) is fixed on the top of the base (1), a fixed seat (15) is fixed on the top of the height adjuster (16), and a lower template (17) is fixedly installed on the top of the fixed seat (15), and an upper template (9) is set above the lower template (17) through a knurling device. Mounting blocks (2) are fixed on the left and right sides of the fixed seat (15), and the front end surface of each mounting block (2) is provided with two upper and lower plug holes, and an adjustment frame (14) is slidably set in the upper and lower plug holes through a positioning device. The horizontal plates of the two adjustment frames (14) are respectively arranged on the front and rear sides of the fixed seat (15), and the inner sides of the two adjustment frames (14) are respectively fixed with cross bars (19), and two pairs of cross bars (19) are respectively located on the front and rear sides of the fixed seat (15), and each pair of cross bars (19) is fixed on the front and rear sides of the fixed seat (15). The outer wall of the cross bar (19) is respectively provided with a first sliding block (13) for sliding, and the top of the first sliding block (13) is fixed with a U-shaped seat (10), the bottom of the U-shaped seat (10) is fixed with a short shaft located in the middle position through two vertical plates, and a bottom roller (20) is rotatably provided on the short shaft, a pair of rectangular holes are opened on the left and right end surfaces of the U-shaped seat (10), and U-shaped rods (21) are inserted into the two rectangular holes, a pair of U-shaped rods (21) are fixed with a transverse shaft at one end close to each other and located in the U-shaped seat (10), and a clamping roller (18) is rotatably provided on the transverse shaft, and a tension spring (22) is fixed on the left and right end surfaces of the U-shaped seat (10), and the ends of the pair of tension springs (22) away from each other are respectively fixedly connected to the cross bars of the two U-shaped rods (21) located outside the U-shaped seat (10).

2. A long-axis rubbing device according to claim 1, characterized in that: The knurling device comprises a gantry (3), a fixed plate (7), and a guide rail (8); the gantry (3) is fixedly provided on the top of the base (1); a driving device and a pair of guide rails (8) are fixedly provided on the top of the gantry (3); a pair of guide rails (8) are provided with a sliding groove near the end faces thereof; a fixed plate (7) driven by the driving device is slidingly provided in the sliding groove; and an upper template (9) is fixedly installed on the bottom of the fixed plate (7).

3. A long-axis rubbing device according to claim 1, characterized in that: A pair of baffles (12) are provided with a plurality of spherical grooves on their end surfaces close to each other, and balls (23) are rotatably arranged in the spherical grooves.

4. A long-axis rubbing device according to claim 1, characterized in that: The positioning device comprises a screw (24), a second sliding block (25), and a friction column (26). The outer wall of the left end of the mounting block (2) is provided with a screw (24) through a U-shaped plate. The outer wall of the screw (24) is threadedly connected with the second sliding block (25). A pair of friction columns (26) are fixed at the right end of the second sliding block (25). The right ends of the friction columns (26) penetrate and are slidably connected to the mounting block (2). The right end surfaces of the two friction columns (26) respectively abut against the two adjustment frames (14).

5. A long-axis rubbing device according to claim 4, characterized in that: A handle is fixedly provided at the left end of the screw (24), and a tiny protrusion for increasing friction is provided at the right end surface of the friction column (26).

6. A long-axis rubbing device according to claim 1, characterized in that: The top of the baffle (12) is integrally formed with an arc plate (11) for facilitating the insertion of shaft parts.

7. A long-axis rubbing device according to claim 2, characterized in that: The driving device comprises a motor (4), a disc (5), and a push rod (6); the motor (4) is fixedly mounted on the top of the gantry (3); the output shaft of the motor (4) is fixedly connected to the disc (5); a push rod (6) is rotatably provided at an eccentric position on the lower end surface of the disc (5); and the right end of the push rod (6) is rotatably connected to a fixed plate (7).

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