Spring grinding machine

Abstract

The application relates to a spring grinding machine, which comprises a frame, a grinding wheel, a grinding motor, a clamping assembly for clamping a spring and a reciprocating member, the grinding wheel is rotationally connected to the frame, the grinding motor is used for driving the grinding wheel to rotate, the clamping assembly comprises a clamping frame, a clamping block and a driving member, the clamping frame is slidably connected to the frame in the vertical direction, the clamping block is slidably connected to the clamping frame in the vertical direction, the driving member changes the distance between the clamping block and the clamping frame, the clamping block and the clamping frame are used for clamping the spring, and the reciprocating member comprises a cam and a reciprocating motor, the cam is rotationally connected to the frame, the cam abuts against the lower end surface of the clamping frame, and the reciprocating motor is used for driving the cam to rotate. The application has the effect of improving the area of the grinding wheel which can contact the spring.

Description

Technical Field

[0001] This application relates to the field of spring grinding machines, and more particularly to a spring grinding machine. Background Technology

[0002] A spring is a mechanical part that works by utilizing elasticity. Made of elastic material, it deforms under external force and returns to its original shape after the force is removed. Springs are generally made of spring steel. There are many types of springs, mainly classified by shape as helical springs, spiral springs, leaf springs, and irregularly shaped springs. Spring grinding machines play an important role in the spring processing industry. Through precise processing techniques and advanced technology, they can improve the quality, precision, and production efficiency of springs. Spring grinding machines are mainly used to grind the end faces of various springs. Through a precise grinding process, the shape, size, and surface quality of the springs can be made more accurate and consistent, improving the quality stability of the products.

[0003] Currently, Chinese utility model patent CN203579410U discloses a spring seat for a spring grinding machine, comprising a base, a frame, a first fixed bracket, a second fixed bracket, a first fixed seat, a second fixed seat, a first hydraulic cylinder, a second hydraulic cylinder, a fixed track, a stabilizer rod, a first pressure plate, and a second pressure plate. The base is provided with the frame, the first fixed seat, and the second fixed seat. The frame is provided with the first fixed bracket, the second fixed bracket, and the fixed track. Fixed tracks are provided below both the first and second fixed brackets. A first hydraulic cylinder is provided on the first fixed bracket, and a second hydraulic cylinder is provided on the second fixed bracket. A first pressure plate is provided at the bottom end of the piston rod of the first hydraulic cylinder, and a second pressure plate is provided at the bottom end of the piston rod of the second hydraulic cylinder. A stabilizer rod is provided on both the first and second pressure plates. This utility model has the advantage of facilitating the flatness of the spring end face angle.

[0004] A spring grinding machine grinds the end face of a spring using a grinding wheel. When the spring is clamped and cannot move, the distance from the contact point between the spring and the grinding wheel to the center of the grinding wheel remains unchanged. Only a portion of the grinding wheel can contact the end of the spring, resulting in a low usable area where the grinding wheel can contact the spring. Utility Model Content

[0005] In order to increase the contact area between the grinding wheel and the spring, this application provides a spring grinding machine.

[0006] This application provides a spring grinding machine, which adopts the following technical solution:

[0007] A spring grinding machine includes a frame, a grinding wheel, a grinding motor, a clamping assembly for holding springs, and a reciprocating component. The grinding wheel is rotatably connected to the frame, and the grinding motor drives the grinding wheel to rotate. The clamping assembly includes a clamping frame, a clamping block, and a driving component. The clamping frame is slidably connected to the frame in a vertical direction, and the clamping block is slidably connected to the clamping frame in a vertical direction. The driving component changes the distance between the clamping block and the clamping frame. The clamping block and the clamping frame are used to clamp the spring. The reciprocating component includes a cam and a reciprocating motor. The cam is rotatably connected to the frame and abuts against the lower end face of the clamping frame. The reciprocating motor drives the cam to rotate.

[0008] By adopting the above technical solution, the reciprocating component drives the clamping frame to slide vertically back and forth, allowing the clamped spring to move up and down vertically during the grinding process. This changes the contact position between the spring and the grinding wheel, improving the utilization rate of the grinding wheel through dynamic changes in the contact position. At the same time, the sliding structure of the clamping assembly, in conjunction with the driving component, can flexibly adjust the distance between the clamping block and the clamping frame to adapt to the clamping requirements of springs with different diameters, ensuring clamping stability and laying the foundation for precise grinding.

[0009] Optionally, the driving component includes a screw, which is parallel to the sliding direction of the clamping block. The screw is rotatably connected to the clamping frame, and the clamping block is threadedly connected to the screw.

[0010] By adopting the above technical solution, the screw is parallel to the sliding direction of the clamping block and threadedly connected to the clamping block. The screw drive has the characteristics of high adjustment accuracy and good self-locking performance, which can accurately control the distance between the clamping block and the clamping frame, ensuring stable clamping force for springs of different diameters, avoiding spring wobbling due to excessively loose clamping or spring deformation due to excessively tight clamping, thus improving the reliability of clamping and the convenience of adjustment.

[0011] Optionally, the clamping frame is provided with two sets of limiting components, each including two limiting rollers. The length direction of the limiting rollers is parallel to the direction from the clamping assembly to the grinding wheel. The two limiting rollers are distributed horizontally and perpendicular to the length direction of the limiting rollers. The limiting rollers are rotatably connected to the clamping frame. The two limiting rollers are used to support the spring to disengage from the clamping frame.

[0012] By adopting the above technical solution, the limiting roller can support the part of the spring that is detached from the clamping frame, avoiding the wear caused by the spring directly contacting the clamping frame rigidly; at the same time, the rotating limiting roller can reduce the frictional resistance between the spring and the limiting component, and keep the spring stable when it moves back and forth with the clamping frame, preventing the spring from shifting the grinding position due to shaking, and improving the stability of the grinding process.

[0013] Optionally, the clamping block is provided with two sets of auxiliary limiting components. The auxiliary limiting components include two auxiliary rollers, which are parallel to the limiting rollers and correspond to the two limiting rollers. The auxiliary rollers are rotatably connected to the clamping block, and the two auxiliary rollers are used to spring-hold against the limiting rollers.

[0014] By adopting the above technical solution, the auxiliary roller applies pressure to the spring from the clamping block side, so that the spring always remains in contact with the limiting roller, realizing the dual limiting of the limiting roller support and the auxiliary roller pressing. This design further restricts the displacement of the spring in the horizontal direction. Especially when the spring moves back and forth or deforms slightly, it can effectively prevent the spring from deviating, ensure the stable contact position between the spring end face and the grinding wheel, and improve the grinding accuracy.

[0015] Optionally, the clamping frame is further provided with two driving components for driving the spring to rotate. The two driving components correspond to one of the limiting rollers of the two limiting components. The driving components include a first bevel gear, a second bevel gear, and a drive motor. The first bevel gear is coaxially arranged with the limiting roller and is disposed on the limiting roller. The second bevel gear is rotatably connected to the limiting frame. The first bevel gear and the second bevel gear mesh with each other. The drive motor is used to drive the second bevel gear to rotate.

[0016] By adopting the above technical solution, the spring rotates while moving vertically back and forth, which can change the contact position between the grinding wheel and the end face of the spring. This avoids the problem of local over-grinding or uneven grinding caused by a fixed contact position, further increases the contact area of ​​the grinding wheel, and extends the service life of the grinding wheel.

[0017] Optionally, the frame is further provided with a movable component for driving the grinding wheel closer to the spring. The movable component includes a movable base, a movable gear, a movable rack, and a movable motor. The movable base is slidably connected to the frame along the axial direction of the spring. The length direction of the movable rack is parallel to the length direction of the movable base. The movable rack is mounted on the frame. The movable gear is rotatably connected to the movable base. The movable motor drives the movable gear to rotate. The grinding motor and the grinding wheel are mounted on the movable base.

[0018] By adopting the above technical solution, the moving part enables the grinding wheel to adapt to the grinding requirements of springs of different lengths, or to precisely control the contact depth of the grinding wheel according to the grinding progress, thereby expanding the applicability of the equipment. At the same time, it facilitates precise control of the grinding amount, improving the versatility and grinding accuracy of the equipment.

[0019] Optionally, the frame is further provided with an air blowing assembly for blowing away debris adhering to the grinding wheel. The air blowing assembly includes an air blowing pipe and an air pump. The air pump is mounted on the frame. One end of the air blowing pipe is connected to the air source of the air pump, and the other end of the air blowing pipe faces the end face of the grinding wheel grinding spring.

[0020] By adopting the above technical solution, the air blowing component is used to promptly blow away spring debris adhering to the surface of the grinding wheel, reducing debris accumulation that causes unevenness on the grinding wheel surface, preventing debris from scratching the spring end face, reducing the impact of debris on grinding wheel wear, extending the service life of the grinding wheel, ensuring the continuity and stability of the grinding process, and improving product quality.

[0021] Optionally, the air blowing pipe is a flexible hose, and the outer wall of the air blowing pipe is also provided with deformable metal wires to improve the structural strength of the air blowing pipe.

[0022] By adopting the above technical solution, the hose can flexibly adjust the blowing direction to adapt to the needs of different spring sizes or grinding positions; the deformable metal wire can fix the shape of the air blowing tube, ensuring that the air blowing port is stably aligned with the contact area between the grinding wheel and the spring, avoiding the problem of incomplete debris cleaning caused by airflow deviation, and improving the practicality and cleaning effect of the air blowing component.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The reciprocating component drives the clamping frame to slide vertically back and forth, so that the spring dynamically adjusts its contact position with the grinding wheel in the vertical direction during the grinding process, allowing more areas of the grinding wheel to participate in the grinding, reducing excessive wear of the grinding wheel in some areas, extending its service life, and improving the efficiency of a single grinding session.

[0025] 2. The clamping assembly precisely adjusts the distance between the clamping block and the clamping frame via a screw, forming a double support and clamping structure in conjunction with the limiting component and auxiliary limiting component; the rotation design of the limiting roller and auxiliary roller reduces the frictional resistance between the spring and the clamping component, ensuring that springs of different diameters do not shift or wobble during reciprocating movement and their own rotation, effectively guaranteeing the stability of the contact position between the spring end face and the grinding wheel, and significantly improving the grinding accuracy and end face flatness;

[0026] 3. The air blowing component can promptly blow away spring debris adhering to the grinding wheel surface, preventing debris accumulation that could cause unevenness on the grinding wheel surface, scratch the spring end face, or affect grinding accuracy. Simultaneously, the flexible air hose, combined with a deformable metal wire, allows for flexible adjustment and fixation of the air blowing direction, ensuring precise and effective debris removal, reducing product defects caused by debris issues, and guaranteeing the continuity and quality stability of the grinding process. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a spring grinding machine.

[0028] Figure 2 yes Figure 1 A schematic diagram of the moving part.

[0029] Figure 3 yes Figure 1 A schematic diagram of the clamping component.

[0030] Figure 4 yes Figure 3 The enlarged view at point A in the middle is used to show the driving component.

[0031] Figure 5 This is a structural diagram of the drive component.

[0032] Figure 6 This is a schematic diagram of the air blowing assembly.

[0033] Reference numerals: 1. Frame; 2. Grinding wheel; 3. Grinding motor; 4. Clamping assembly; 41. Clamping frame; 42. Clamping block; 43. Driving component; 431. Screw; 432. Sliding rod; 433. Rotating handle; 5. Reciprocating component; 51. Cam; 52. Reciprocating motor; 6. Air blowing assembly; 61. Air blowing pipe; 62. Air pump; 63. Fixing plate; 64. Deformable metal wire; 7. Moving component; 71. Moving seat; 72. Moving gear; 73. Moving rack; 74. Moving motor; 8. Limiting roller; 81. Auxiliary roller; 82. Driving component; 83. First bevel gear; 84. Second bevel gear; 85. Drive motor. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This application will be described in further detail.

[0035] This application discloses a spring grinding machine. (Refer to...) Figure 1 and Figure 2 A spring grinding machine includes a frame 1, a grinding wheel 2, a grinding motor 3, a clamping assembly 4, a reciprocating component 5, and an air blowing assembly 6. The grinding wheel 2 is used to grind the end face of the spring, the grinding motor 3 is used to drive the grinding wheel 2 to rotate, the clamping assembly 4 is used to clamp the spring to be ground, the reciprocating component 5 is used to drive the clamping assembly 4 to move, and the air blowing assembly 6 is used to blow off the metal chips on the grinding wheel 2.

[0036] Reference Figure 1 and Figure 2The frame 1 is equipped with a movable component 7, which includes a movable base 71, a movable gear 72, a movable rack 73, and a movable motor 74. The movable base 71 is slidably connected to the frame 1 along its length direction. The length direction of the movable rack 73 is parallel to the moving direction of the movable base 71, and the movable rack 73 is fixedly mounted on the frame 1. The movable gear 72 is rotatably connected to the movable base 71 and meshes with the movable rack 73. The movable motor 74 is fixedly mounted on the movable base 71, and its output shaft is fixedly connected to the movable gear 72. The axis of the grinding wheel 2 is parallel to the sliding direction of the movable base 71, and the grinding wheel 2 is rotatably connected to the movable base 71. The grinding motor 3 is fixedly mounted on the movable base 71, and its output shaft is fixedly connected to the grinding wheel 2.

[0037] Reference Figure 1 and Figure 3 The clamping assembly 4 includes a clamping frame 41, a clamping block 42, and a driving component 43. The clamping frame 41 is slidably connected to the frame 1 in the vertical direction. The reciprocating component 5 includes two cams 51 and two reciprocating motors 52. The two cams 51 are distributed along the length direction of the clamping frame 41. The cams 51 are located below the clamping frame 41. The rotation axis of the cams 51 is parallel to the width direction of the clamping frame 41. The cams 51 are rotatably connected to the frame 1 and abut against the bottom surface of the reciprocating frame. The two reciprocating motors 52 correspond to the two cams 51. The reciprocating motors 52 are fixedly mounted on the frame 1. The output shaft of the reciprocating motors 52 is fixedly connected to the cams 51.

[0038] Reference Figure 4 and Figure 5The clamping block 42 is vertically slidably connected to the clamping frame 41. The driving component 43 includes a screw 431, a sliding rod 432, and a rotating handle 433. The screw 431 and the sliding rod 432 are distributed along the length of the clamping block 42. The screw 431 is vertically arranged and rotatably connected to the clamping frame 41. The clamping block 42 is threadedly connected to the screw 431. The rotating handle 433 is fixedly arranged at the upper end of the screw 431. The sliding rod 432 is fixedly arranged on the clamping frame 41. The clamping block 42 is slidably connected to the sliding rod 432. Two sets of limiting members are arranged on the side of the clamping frame 41 facing the clamping block 42. The two sets of limiting members are distributed along the length of the clamping block 42. The limiting members include two limiting rollers 8. The length of the limiting rollers 8 is parallel to the width of the clamping block 42. The limiting rollers 8 are rotatably connected to the clamping frame 41. The two limiting rollers 8 are used to support the spring to be ground. The clamping frame 41 is also provided with two driving components 82, which correspond to the two limiting components. The driving component 82 includes a first bevel gear 83, a second bevel gear 84 and a drive motor 85. The first bevel gear 83 corresponds to one of the limiting rollers 8 in the limiting component. The first bevel gear 83 and the limiting roller 8 are coaxially arranged. The first bevel gear 83 is fixedly arranged at one end of the limiting roller 8. The axis of the second bevel gear 84 is vertically arranged. The second bevel gear 84 is rotatably connected to the clamping frame 41. The first bevel gear 83 and the second bevel gear 84 mesh. The drive motor 85 is fixedly arranged on the clamping frame 41. The output shaft of the drive motor 85 is fixedly connected to the second bevel gear 84.

[0039] Reference Figure 3 and Figure 5 The clamping block 42 is provided with two auxiliary limiting members, which correspond to the two limiting members. The auxiliary limiting members include two auxiliary rollers 81. The length direction of the auxiliary rollers 81 is parallel to the length direction of the limiting rollers 8. The auxiliary rollers 81 are rotatably connected to the end face of the clamping block 42 facing the limiting rollers 8. The two auxiliary rollers 81 are used to spring-hold against the limiting rollers 8.

[0040] Reference Figure 1 and Figure 6 The air blowing assembly 6 includes an air blowing pipe 61 and an air pump 62. The air pump 62 is fixedly mounted on the frame 1. The air blowing pipe 61 is a flexible hose. One end of the air blowing pipe 61 is fixedly mounted on the air source of the air pump 62, and the other end of the air blowing pipe 61 faces the grinding surface of the grinding wheel 2. Several fixing plates 63 are provided on the outer wall of the air blowing pipe 61 along its length. Four deformable metal wires 64 are provided on the outer wall of the air blowing pipe 61. The deformable metal wires 64 pass through the fixing plates 63 in sequence.

[0041] The implementation principle of a spring grinding machine according to an embodiment of this application is as follows: The operator first places the spring between the two limiting rollers 8 of the same limiting component. Then, the distance of the clamping block 42 is changed by the driving component 43 until the two auxiliary rollers 81 of the auxiliary limiting component abut against the spring. The spring is fixed by the two limiting rollers 8 and the two auxiliary rollers 81. Then, the grinding motor 3 is started, driving the grinding wheel 2 to rotate. The moving component 7 achieves contact between the grinding wheel 2 and the end of the spring to be ground. At this time, the operator can start the reciprocating component 5, and the reciprocating motor 52 drives... The rotating cam 51 drives the clamping block 42 to move vertically, changing the contact position between the spring end and the grinding wheel 2. At the same time, the operator can activate the drive component 82, which rotates the limiting roller 8. The rotation of the limiting roller 8 rotates the spring, further changing the contact position between the spring and the grinding wheel 2, increasing the grindable area of ​​the grinding wheel 2, and thus extending the service life of the grinding wheel 2. During the grinding process, the operator can use the air blowing component 6 to blow away the metal chips adhering to the grinding wheel 2, improving the grinding effect of the grinding wheel 2.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A spring grinding machine, characterized in that: The device includes a frame (1), a grinding wheel (2), a grinding motor (3), a clamping assembly (4) with clamping springs, and a reciprocating component (5). The grinding wheel (2) is rotatably connected to the frame (1), and the grinding motor (3) drives the grinding wheel (2) to rotate. The clamping assembly (4) includes a clamping frame (41), a clamping block (42), and a driving component (43). The clamping frame (41) is slidably connected to the frame (1) in the vertical direction, and the clamping block (42) is slidably connected to the frame (1) in the vertical direction. The sliding connection is on the clamping frame (41). The driving member (43) changes the distance between the clamping block (42) and the clamping frame (41). The clamping block (42) and the clamping frame (41) are used to clamp the spring. The reciprocating member (5) includes a cam (51) and a reciprocating motor (52). The cam (51) is rotatably connected to the frame (1). The cam (51) abuts against the lower end face of the clamping frame (41). The reciprocating motor (52) is used to drive the cam (51) to rotate.

2. The spring grinding machine according to claim 1, characterized in that: The drive component (43) includes a screw (431) which is parallel to the sliding direction of the clamping block (42). The screw (431) is rotatably connected to the clamping frame (41), and the clamping block (42) is threadedly connected to the screw (431).

3. A spring grinding machine according to claim 1, characterized in that: The clamping frame (41) is provided with two sets of limiting members, including two limiting rollers (8). The length direction of the limiting rollers (8) is parallel to the direction from the clamping assembly (4) to the grinding wheel (2). The two limiting rollers (8) are distributed horizontally and perpendicular to the length direction of the limiting rollers (8). The limiting rollers (8) are rotatably connected to the clamping frame (41). The two limiting rollers (8) are used to support the spring to disengage from the clamping frame (41).

4. A spring grinding machine according to claim 3, characterized in that: The clamping block (42) is provided with two sets of auxiliary limiting members, each including two auxiliary rollers (81). The auxiliary rollers (81) are parallel to the limiting rollers (8), and the two auxiliary rollers (81) correspond to the two limiting rollers (8). The auxiliary rollers (81) are rotatably connected to the clamping block (42), and the two auxiliary rollers (81) are used to spring-hold against the limiting rollers (8).

5. A spring grinding machine according to claim 3, characterized in that: The clamping frame (41) is also provided with two driving members (82) for driving the spring to rotate. The two driving members (82) are respectively corresponding to one of the limiting rollers (8) of the two limiting members. The driving member (82) includes a first bevel gear (83), a second bevel gear (84) and a drive motor (85). The first bevel gear (83) is coaxially arranged with the limiting roller (8) and is arranged on the limiting roller (8). The second bevel gear (84) is rotatably connected to the limiting frame. The first bevel gear (83) and the second bevel gear (84) mesh with each other. The drive motor (85) is used to drive the second bevel gear (84) to rotate.

6. A spring grinding machine according to claim 1, characterized in that: The frame (1) is also provided with a moving part (7) for driving the grinding wheel (2) closer to the spring. The moving part (7) includes a moving seat (71), a moving gear (72), a moving rack (73), and a moving motor (74). The moving seat (71) is slidably connected to the frame (1) along the axis of the spring. The length direction of the moving rack (73) is parallel to the length direction of the moving seat (71). The moving rack (73) is set on the frame (1). The moving gear (72) is rotatably connected to the moving seat (71). The moving motor (74) drives the moving gear (72) to rotate. The grinding motor (3) and the grinding wheel (2) are both set on the moving seat (71).

7. A spring grinding machine according to claim 1, characterized in that: The frame (1) is also provided with an air blowing assembly (6) for blowing away the debris adhering to the grinding wheel (2). The air blowing assembly (6) includes an air blowing pipe (61) and an air pump (62). The air pump (62) is provided on the frame (1). One end of the air blowing pipe (61) is provided on the air source of the air pump (62), and the other end of the air blowing pipe (61) faces the end face of the grinding wheel (2) grinding spring.

8. A spring grinding machine according to claim 7, characterized in that: The air blowing pipe (61) is a flexible hose, and the outer wall of the air blowing pipe (61) is also provided with a deformable metal wire (64) to improve the shape strength of the air blowing pipe (61).

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