Machining hand feed mechanism

Abstract

The utility model discloses a machining manual feed mechanism, including electronic hand wheel body and main wheel body, the casing surface rotation of electronic hand wheel body is installed with main wheel body, still include speed -limiting mechanism, the speed -limiting mechanism includes L shape support board, support axle, runner, T -shaped pressing block, spring and toothed pad, the electronic hand wheel body surface of main wheel body one side is locked through the twist bolt installation with L shape support board, through setting speed -limiting mechanism at electronic hand wheel body, and speed -limiting mechanism installs with L shape support board at electronic hand wheel body, and then the runner of L shape support board surface bolt axle has the toothed pad of rack outside and is in contact with main wheel body, through T -shaped pressing block and spring to the runner pressure -exerting after, make the runner can be pressed to the main wheel body and carry out the speed -reducing of pressure, thereby limit main wheel body high -speed rotation, effectively guaranteed the high -precision low -speed manual feed operation of novice when machining tool setting.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a manual feed mechanism for machining. Background Technology

[0002] Manual feed mechanisms in machining are devices used in machine tools to manually control the feed motion of tools or workpieces. The electronic handwheel in a machining center is a type of manual feed mechanism. It uses a hand-cranked pulse encoder to generate pulse signals to control the movement of each servo axis of the machine tool. The frequency and number of pulses control the speed and displacement of the axis, respectively. By setting the machine tool to handwheel mode, selecting the axis to be moved and the feed rate, and turning the handwheel, the corresponding axis can be moved at the selected rate, achieving manual feed of the tool or workpiece. This is necessary for operations requiring precise position control, such as tool setting and geometric accuracy inspection.

[0003] When adjusting the manual feed of machining using existing electronic handwheels, workers typically manually crank the main wheel after selecting the axial direction and pulse multiplier. This high degree of flexibility in the rotation of the main wheel makes it difficult for novice machine operators to control the speed of the main wheel rotation, thus affecting the accuracy of manual feed operations. Therefore, we propose a manual feed mechanism for machining. Utility Model Content

[0004] The main purpose of this utility model is to provide a manual feed mechanism for machining. By setting a speed limiting mechanism on the electronic handwheel body, the speed limiting mechanism is installed on the electronic handwheel body with an L-shaped support plate. Then, a wheel with a shaft on the surface of the L-shaped support plate abuts against the main wheel body with the help of a toothed pad outside the rack. After the T-shaped pressure block and spring apply pressure to the wheel, the wheel can reduce the speed of the main wheel body under pressure, thereby limiting the high-speed rotation of the main wheel body. This effectively ensures that novices can perform high-precision low-speed manual feed operations when setting tools in machining, and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A manual feed mechanism for machining includes an electronic handwheel body and a main wheel body. The main wheel body is rotatably mounted on the housing surface of the electronic handwheel body. The mechanism also includes a speed limiting mechanism, which comprises an L-shaped support plate, a support shaft, a rotating wheel, a T-shaped pressure block, a spring, and a toothed pad. An L-shaped support plate is fastened to the surface of the electronic handwheel body on one side of the main wheel body by a bolt. A support shaft protrudes from the disc plate surface of the L-shaped support plate near the main wheel body. A rotating wheel is rotatably mounted on the shaft of the support shaft, and a T-shaped pressure block is screwed onto the shaft of the support shaft extending beyond the rotating wheel. A spring is sleeved on the outer side of the support shaft between the T-shaped pressure block and the rotating wheel. A rack protrudes from the edge of the rotating wheel body, and a toothed pad for resisting the main wheel body and limiting its rotation speed is adhered to the surface of the rack.

[0007] Furthermore, a swivel hole is provided between the side plate of the L-shaped support plate and the side housing of the electronic handwheel body, and a swivel bolt is screwed between the L-shaped support plate and the swivel hole of the electronic handwheel body.

[0008] By adopting the above technical solution, a screw bolt can be screwed into the screw hole between the L-shaped support plate and the electronic handwheel body, thereby installing the L-shaped support plate at the electronic handwheel body.

[0009] Furthermore, the electronic handwheel body has an L-shaped groove for mounting an L-shaped block on the side shell near the pivot bolt, and the L-shaped block is fixed to the inner side plate of the L-shaped support plate.

[0010] By adopting the above technical solution, the L-shaped support plate is positioned and clamped in the L-shaped slot of the electronic handwheel body by the L-shaped fixing block, which facilitates the positioning and installation of the L-shaped support plate and the electronic handwheel body.

[0011] Furthermore, the wheel body of the rotating wheel has a through hole for the support shaft to pass through, and the wheel body of the rotating wheel has vertical strips with toothed teeth distributed in a ring on the edge. The vertical strips of the toothed teeth are inserted into the concave surface of the toothed pad for bonding and fixing.

[0012] By adopting the above technical solution, the rotor can rotate on the outside of the support shaft by means of the wheel hole sleeve. Then, the rack of the rotor is elastically pressed against the main wheel body by means of the toothed pad to perform friction. When the main wheel body rotates, the rotor and the toothed pad can perform friction to reduce the speed of the main wheel body.

[0013] Furthermore, the spring has adhesive rings wrapped around the spring coils at both ends, and the outer wheel and T-shaped pressure block of the spring have recessed grooves for mounting the adhesive rings.

[0014] By adopting the above technical solution, the spring coil is wrapped with the adhesive support ring to obtain a larger contact area. Then the adhesive support ring can be clamped and positioned at the concave groove of the rotating wheel and the T-shaped pressure block. When the T-shaped pressure block compresses the spring, the spring can be guided and contracted outside the support shaft.

[0015] Furthermore, the support shaft is provided with a ring-shaped shaft root near the shaft root of the rotating wheel, and the annular surface of the ring-shaped shaft root is in contact with the wheel body of the rotating wheel;

[0016] By adopting the above technical solution, the shaft root can be wrapped with a ring to support the rotating wheel in a rotatable manner.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model sets a speed limiting mechanism on the electronic handwheel body. The speed limiting mechanism is installed on the electronic handwheel body with an L-shaped support plate. Then, there is a rotating wheel at the pinion on the surface of the L-shaped support plate. The rotating wheel abuts against the main wheel body with the help of the toothed pad outside the rack. After the T-shaped pressure block and spring apply pressure to the rotating wheel, the rotating wheel can reduce the speed of the main wheel body under pressure, thereby limiting the high-speed rotation of the main wheel body. This effectively ensures that novices can perform high-precision low-speed manual feed operation when setting tools in machining.

[0019] Furthermore, the externally rotating T-shaped pressure block causes the spring and the rotating wheel to lose pressure. At this time, the main wheel body loses the limiting force and can resume normal rotation, enabling high-speed manual tool setting operations, thus meeting the needs of experienced machine operators for rapid tool setting. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the manual feed mechanism for machining according to this utility model.

[0021] Figure 2 This is a schematic diagram showing the disassembled L-shaped support plate and electronic handwheel body of the manual feed mechanism for machining of this utility model.

[0022] Figure 3 This is an exploded view of the speed limiting mechanism of the manual feed mechanism for machining according to this utility model.

[0023] In the diagram: 1. Electronic handwheel body; 2. Main wheel body; 3. Speed ​​limiting mechanism; 4. L-shaped support plate; 5. Rotary bolt; 6. Support shaft; 7. Rotary wheel; 8. T-shaped pressure block; 9. Spring; 10. Rubber support ring; 11. Rack; 12. Toothed pad; 13. L-shaped fixed groove; 14. L-shaped fixed block. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1-3As shown, the machining manual feed mechanism includes an electronic handwheel body 1 and a main wheel body 2. The main wheel body 2 is rotatably mounted on the housing surface of the electronic handwheel body 1. It also includes a speed limiting mechanism 3, which includes an L-shaped support plate 4, a support shaft 6, a rotating wheel 7, a T-shaped pressure block 8, a spring 9, and a toothed pad 12. The L-shaped support plate 4 is locked to the surface of the electronic handwheel body 1 on one side of the main wheel body 2 by a screw bolt 5. The support shaft 6 protrudes from the disc plate surface of the L-shaped support plate 4 near the main wheel body 2. The rotating wheel 7 is rotatably clamped at the shaft of the support shaft 6. The T-shaped pressure block 8 is screwed onto the shaft of the support shaft 6 that extends out of the shaft of the rotating wheel 7. The spring 9 is sleeved on the outside of the support shaft 6 between the T-shaped pressure block 8 and the rotating wheel 7. A rack 11 protrudes from the edge of the rotating wheel 7. A toothed pad 12 for resisting the main wheel body 2 and limiting the rotation speed is sleeved on the surface of the rack 11.

[0026] Wherein, a swivel hole is provided between the side plate of the L-shaped support plate 4 and the side shell of the electronic handwheel body 1, and a swivel bolt 5 is swivelly connected between the L-shaped support plate 4 and the swivel hole of the electronic handwheel body 1.

[0027] By adopting the above technical solution, a screw bolt 5 can be screwed into the screw hole between the L-shaped support plate 4 and the electronic handwheel body 1, thereby installing the L-shaped support plate 4 at the electronic handwheel body 1.

[0028] The electronic handwheel body 1 has an L-shaped groove 13 for mounting an L-shaped block 14 on the side shell near the throttle 5, and the L-shaped block 14 is fixed to the inner side plate of the L-shaped support plate 4.

[0029] By adopting the above technical solution, the L-shaped support plate 4 is positioned and clamped at the L-shaped groove 13 of the electronic handwheel body 1 by the L-shaped fixing block 14, which facilitates the positioning and installation of the L-shaped support plate 4 and the electronic handwheel body 1.

[0030] The wheel 7 has a through hole in the middle of its body for the support shaft 6 to pass through, and the wheel 7 has vertical strips of rack 11 distributed in a ring around its edge. The vertical strips of rack 11 are inserted into the concave surface of the toothed pad 12 for bonding and fixing.

[0031] By adopting the above technical solution, the rotating wheel 7 can rotate on the outside of the support shaft 6 with the wheel hole sleeve. Then, the rack 11 of the rotating wheel 7 elastically abuts against the outside of the main wheel body 2 with the help of the toothed pad 12 to perform friction. When the main wheel body 2 rotates, the rotating wheel 7 and the toothed pad 12 can perform friction to reduce the speed of the main wheel body 2.

[0032] Among them, the spring 9 has a rubber support ring 10 wrapped and bonded at both ends of the spring coil, and the rotating wheel 7 and T-shaped pressure block 8 outside the spring 9 are recessed with a concave groove for mounting the rubber support ring 10.

[0033] By adopting the above technical solution, the spring ring of spring 9 obtains a larger contact area after wrapping the adhesive support ring 10. Then, the adhesive support ring 10 can be clamped and positioned at the concave groove of the rotating wheel 7 and the T-shaped pressure block 8. When the T-shaped pressure block 8 presses the spring 9, the spring 9 can be guided and contracted outside the support shaft 6.

[0034] Wherein, the support shaft 6 is provided with a ring-shaped shaft root near the shaft root of the rotating wheel 7, and the ring surface of the ring-shaped shaft root is in contact with the wheel body of the rotating wheel 7;

[0035] By adopting the above technical solution, the shaft root of the support shaft 6 can be rotatably supported by the rotating wheel 7 by wrapping around the shaft root.

[0036] It should be noted that this utility model is a manual feed mechanism for machining. A speed limiting mechanism 3 is set at the electronic handwheel body 1. The L-shaped support plate 4 of the speed limiting mechanism 3 is engaged with the L-shaped fixed block 14 at the L-shaped fixed groove 13 of the electronic handwheel body 1. Then, the L-shaped support plate 4 is locked at the electronic handwheel body 1 using a screw bolt 5. Next, the rotating wheel 7 is secured to the support shaft 6 of the L-shaped support plate 4. The spring 9 is sleeved on the support shaft 6. Then, the T-shaped pressure block 8 is screwed onto the support shaft 6. The spring ring of the spring 9 wraps around the adhesive support ring 10 to obtain a larger contact area. Then, the adhesive support ring 10 can be engaged and positioned at the concave groove of the rotating wheel 7 and the T-shaped pressure block 8. The rack 11 of the rotating wheel 7 is wrapped with teeth. The elastic pad 12 rubs against the main wheel body 2. As the T-shaped pressure block 8 continues to rotate downward at the support shaft 6, it compresses the spring 9. The spring 9 can press against the rotating wheel 7, and the pressed rotating wheel 7 rubs against the main wheel body 2, preventing the main wheel body 2 from rotating at high speed. This ensures that novice machine operators can operate the main wheel body 2 at low speed for high-precision manual feed operation during machining tool setting. When the T-shaped pressure block 8 rotates outward, the main wheel body 2 can return to normal rotation after the rotating wheel 7 loses pressure. This satisfies the manual tool setting operation of experienced machine operators. The toothed pad 12 can be made of hard rubber to ensure that it can contact the main wheel body 2 for friction and speed reduction.

[0037] It should be noted that this utility model is a manual feed mechanism for machining. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A manual feed mechanism for machining, comprising an electronic handwheel body (1) and a main wheel body (2), wherein the main wheel body (2) is rotatably mounted on the housing surface of the electronic handwheel body (1), characterized in that: It also includes a speed limiting mechanism (3), which includes an L-shaped support plate (4), a support shaft (6), a rotating wheel (7), a T-shaped pressure block (8), a spring (9), and a toothed pad (12). The surface of the electronic handwheel body (1) on one side of the main wheel body (2) is fitted with an L-shaped support plate (4) by a screw bolt (5), and the L-shaped support plate (4) has a support shaft (6) protruding from the disc plate surface near the main wheel body (2). A rotating wheel (7) is rotatably mounted on the shaft of the 6), and a T-shaped pressure block (8) is screwed onto the shaft of the rotating wheel (7) through the support shaft (6). A spring (9) is sleeved on the outside of the support shaft (6) between the T-shaped pressure block (8) and the rotating wheel (7), and a rack (11) protrudes from the edge of the wheel body of the rotating wheel (7). A toothed pad (12) for resisting the main wheel body (2) and limiting the rotation speed is sleeved on the surface of the rack (11).

2. The manual feed mechanism for machining according to claim 1, characterized in that: A swivel hole is provided between the side plate of the L-shaped support plate (4) and the side shell of the electronic handwheel body (1), and a swivel bolt (5) is swivelly connected between the L-shaped support plate (4) and the swivel hole of the electronic handwheel body (1).

3. The manual feed mechanism for machining according to claim 1, characterized in that: The electronic handwheel body (1) has an L-shaped groove (13) for mounting an L-shaped block (14) on the side shell near the throttle (5), and the L-shaped block (14) is fixed on the inner side plate of the L-shaped support plate (4).

4. The manual feed mechanism for machining according to claim 1, characterized in that: The wheel (7) has a through hole in the middle of the wheel body for the support shaft (6) to pass through, and the wheel body edge of the wheel (7) has vertical strips with toothed racks (11) distributed in a ring. The vertical strips of the toothed racks (11) are inserted into the concave surface of the toothed pad (12) for bonding and fixing.

5. The manual feed mechanism for machining according to claim 1, characterized in that: The spring (9) has rubber support rings (10) wrapped and bonded at both ends of the spring coil, and the roller (7) and T-shaped pressure block (8) outside the spring (9) are recessed with grooves for mounting the rubber support rings (10).

6. The manual feed mechanism for machining according to claim 1, characterized in that: The support shaft (6) is provided with a ring-shaped shaft root near the shaft root of the rotating wheel (7), and the ring surface of the ring-shaped shaft root is in contact with the wheel body of the rotating wheel (7).

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