Switch door driving mechanism of linear guide rail grinding machine

Abstract

The utility model provides a kind of switch door drive mechanism of linear guide rail grinding machine, belong to grinding machine equipment technical field.It solves the technical problem such as large space occupation of prior art.This linear guide rail grinding machine's switch door drive mechanism, including swing arm base and the multiple connecting rod mechanism being set on swing arm base, the multiple connecting rod mechanism include the first swing arm, second swing arm and third swing arm being connected in turn hingedly, the outer end of the first swing arm is hinged with the swing arm base, the outer end of the third swing arm is hinged on the swing arm base and hinged center is offset with the hinged center of the first swing arm, first door plate fixed component is equipped on the third swing arm, the second swing arm and third swing arm hinged one end is equipped with extension arm, second door plate fixed component is equipped on extension arm, swing arm drive mechanism that can drive its swing being connected with the first swing arm is equipped on the swing arm base.The utility model has the advantages such as small space occupation, running smoothly.

Description

Technical Field

[0001] This utility model belongs to the technical field of grinding machine processing equipment, and in particular relates to a door opening and closing drive mechanism for a linear guide grinding machine. Background Technology

[0002] Linear grinders, as high-precision machining equipment, are widely used in machinery manufacturing, mold making, and other fields. During operation, the design of the door opening and closing mechanism directly affects the ease of operation, safety performance, and overall structural compactness of the equipment. Especially in space-constrained automated production lines, the design of the door opening and closing mechanism can impact production efficiency.

[0003] In existing technologies, the door panel movement is driven by a single swing arm structure. Although the structure is simple, the door panel is prone to interference during opening and closing. Furthermore, it is prone to vibration or deformation under frequent start-stop and load changes, affecting the positioning accuracy and lifespan of the door panel. Most importantly, traditional mechanisms often require a large swing space, which is not conducive to integrated design.

[0004] Therefore, a door opening and closing mechanism that is smooth in motion, avoids interference, has a compact structure, can adapt to high-frequency operating conditions, and has a long service life is needed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a door opening and closing drive mechanism for a linear guide grinding machine that offers smooth movement and saves space.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: The door opening and closing drive mechanism of this linear guide grinding machine includes a swing arm base and a multi-link mechanism disposed on the swing arm base. The multi-link mechanism includes a first swing arm, a second swing arm, and a third swing arm that are sequentially hinged together. The outer end of the first swing arm is hinged to the swing arm base. The outer end of the third swing arm is hinged to the swing arm base, and the hinge center is offset from the hinge center of the first swing arm. A first door panel fixing assembly is provided on the third swing arm. An extension arm is provided on the end of the second swing arm that is hinged to the third swing arm. A second door panel fixing assembly is provided on the extension arm. A swing arm drive mechanism connected to the first swing arm and capable of driving its swing is provided on the swing arm base.

[0007] By sequentially hinged the first, second, and third swing arms, and offsetting the hinge points of the bases of the first and third swing arms, a planar linkage system with controlled degrees of freedom is created. This allows the door panel to achieve a movement trajectory of first moving outward and then translating, folding and unfolding during opening and closing. This makes the door panel more space-saving when open. Furthermore, with the same swing angle of the swing arms, the mechanism can achieve a larger passage opening.

[0008] In the aforementioned door opening and closing drive mechanism of the linear guide grinding machine, the length of the first swing arm is greater than the lengths of the second and third swing arms. A hinge seat is provided on the swing arm base, and the outer end of the first swing arm is hinged to the hinge seat. A hinge connector is provided at a location offset from the hinge center on the hinge seat, and the outer end of the third swing arm is hinged to the hinge connector. The fulcrum of the first and third swing arms is concentrated on a single integral component, ensuring that the forces acting on the entire linkage system—the door panel's weight, driving pull, and inertial force—are ultimately concentrated on this robust hinge seat assembly. This centralized design avoids the risk of torsional deformation caused by the dispersion of force points in the base structure, improving the system's motion stability and service life.

[0009] In the aforementioned door opening and closing drive mechanism of the linear guide grinding machine, a reinforcing rib is provided between the lower end of the hinge connector and the hinge seat. The hinge connector, hinge seat, and reinforcing rib are integrated as one unit. The upper end of the hinge connector extends outward and is hinged to the outer end of the third swing arm. The hinge connector extends from the hinge seat, and the load of the third swing arm is transmitted through this hinge point, generating bending moment and shear force. The reinforcing rib increases the bending resistance at the root of the hinge connector, effectively resisting the aforementioned bending moment, preventing deformation of the hinge connector, and further enhancing its service life and stability.

[0010] In the aforementioned door opening and closing drive mechanism of the linear guide grinding machine, a reinforcing rib is provided on the side of the first swing arm away from the second and third swing arms, and the drive end of the swing arm drive mechanism is hinged to the reinforcing rib. All the driving force of the swing arm drive mechanism acts on the first swing arm through the hinge point. By directly providing the reinforcing rib in the area where the drive hinge point is located, the reinforcing rib acts as a transition structure, which can more smoothly distribute the concentrated hinge force across the entire cross-section of the first swing arm, avoiding stress concentration and reducing the risk of fatigue damage.

[0011] In the aforementioned door opening and closing drive mechanism of the linear guide grinding machine, the first swing arm has a U-shaped cross-section. A reinforcing rib is provided on the open side of the first swing arm. The reinforcing rib comprises two symmetrically arranged trapezoidal plates, each integrally connected to the first swing arm. A first hinge hole is provided on each of the two trapezoidal plates. A first reinforcing plate is provided on one side of each trapezoidal plate to reinforce it, and a second reinforcing plate is provided on the other side. The second reinforcing plate is located between the first hinge hole and the lower end of the first swing arm, connected to the first swing arm, and can be used for swing limiting. The U-shaped cross-section itself is a highly efficient bending-resistant structure. Closing its open side with two trapezoidal plates forms a closed cross-section, achieving a balance between lightweight and high strength. The second reinforcing plate is both a structural reinforcement, connecting the lower parts of the two trapezoidal plates and increasing overall integrity; and a mechanical limiting component, restricting the swing arm when it swings to a specific position to prevent excessive rotation.

[0012] In the aforementioned door opening and closing drive mechanism of the linear guide grinding machine, the swing arm drive mechanism includes a linear actuator. One end of the linear actuator is hinged to the base, and the other end is hinged to the first hinge hole. During movement, the angle between the actuator and the swing arm continuously changes. The hinged design at both ends allows the actuator to freely swing slightly around its two hinge points while pushing and pulling. This allows it to transmit axial pushing and pulling forces without bearing bending moments. If only one end is fixedly connected, bending moments will act on the actuator; the hinged design at both ends extends the service life of the actuator.

[0013] In the aforementioned door opening and closing drive mechanism of the linear guide grinding machine, several second hinge holes are provided between the two trapezoidal plates. The bottom of the swing arm base is equipped with a driver connecting seat, which is connected to the lower hinge seat of the driver via an adjusting plate. The inner end of the adjusting plate is connected to the driver connecting seat, and the bottom of its outer end is equipped with a support plate. The lower end of the linear driver is hinged to the lower hinge seat of the driver, and the upper end is hinged to either the first or second hinge hole. Selecting a hinge point closer to the rotation center of the first swing arm reduces the lever arm, requiring a larger thrust, but resulting in a faster swing speed. Conversely, selecting a more distant hinge point requires the least effort but results in a slower speed. This allows for adjustments based on the weight of the door panel and the required opening and closing speed. Furthermore, changing the hinge point also affects the limit position of the linkage mechanism, which can be used to adjust the final opening angle of the door panel.

[0014] In the aforementioned door opening and closing drive mechanism of the linear guide grinding machine, V-shaped reinforcing plates are provided on both sides of the first swing arm. The V-shaped structure has high rigidity in its plane. Its symmetrical arrangement on both sides of the swing arm enhances the swing arm's ability to resist torsional deformation.

[0015] In the aforementioned door opening and closing drive mechanism of the linear guide grinding machine, the first door panel fixing assembly includes a first door panel connecting seat disposed on the side of the third swing arm away from the first swing arm. The first door panel connecting seat has several first bolt holes that radially penetrate the third swing arm. Under the vibration environment generated during grinding machine operation, the connection method of through holes and bolts is more reliable, less prone to loosening, and ensures the long-term stability of the door panel connection.

[0016] In the aforementioned door opening and closing drive mechanism of the linear guide grinding machine, the second door panel fixing assembly includes several second bolt holes provided on the extension arm, which is integrally connected to the second swing arm. The several second bolt holes form a constraint surface, effectively preventing the door panel from rotating and creating a stable connection.

[0017] Compared with existing technologies, the advantages of the door opening and closing drive mechanism of this linear guide grinding machine are: 1. Multi-link compound motion, optimized door opening trajectory, and small space occupation. 2. Multiple reinforcements of key parts, smooth operation, and long service life. 3. Flexible and adjustable drive hinge points to adapt to different working conditions. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram provided by this utility model.

[0019] Figure 2 This is a schematic diagram of the structure from another angle provided by this utility model.

[0020] Figure 3 This is a side view diagram of the door panel connection structure provided by this utility model.

[0021] Figure 4 This is a schematic diagram of the rear view of the door panel connection structure provided by this utility model.

[0022] Figure 5 This utility model provides Figure 4 Schematic diagram of the cross-sectional structure at point AA.

[0023] Figure 6 This is a schematic diagram of the installation structure provided by this utility model.

[0024] In the figure, the components are: swing arm base 1, hinge seat 11, hinge connector 12, reinforcing rib 13, driver connector 14, adjustment plate 15, support plate 16, multi-link mechanism 2, first swing arm 21, reinforcing rib 211, trapezoidal plate 212, first hinge hole 213, first reinforcing plate 214, second reinforcing plate 215, second hinge hole 216, V-shaped reinforcing plate 217, second swing arm 22, extension arm 221, second door panel fixing assembly 222, second bolt hole 223, third swing arm 23, first door panel fixing assembly 231, first door panel connector 232, first bolt hole 233, swing arm drive mechanism 3, linear driver 31, base 32, and driver lower hinge seat 33. Detailed Implementation

[0025] like Figures 1 to 6As shown, the door opening and closing drive mechanism of this linear guide grinding machine includes a swing arm base 1 and a multi-link mechanism 2 mounted on the swing arm base 1. The multi-link mechanism 2 includes a first swing arm 21, a second swing arm 22, and a third swing arm 23 that are connected in sequence by hinges. The outer end of the first swing arm 21 is hinged to the swing arm base 1, and the outer end of the third swing arm 23 is hinged to the swing arm base 1 with the hinge center offset from the hinge center of the first swing arm 21. A first door panel fixing assembly 231 is provided on the third swing arm 23. An extension arm 221 is provided on the end of the second swing arm 22 that is hinged to the third swing arm 23. A second door panel fixing assembly 222 is provided on the extension arm 221. A swing arm drive mechanism 3 connected to the first swing arm 21 and capable of driving its swing is provided on the swing arm base 1.

[0026] In this embodiment, a planar linkage system is formed by the first swing arm 21, the second swing arm 22, and the third swing arm 23 to more smoothly control the opening and closing of the door panel. The hinge points of the first swing arm 21 and the third swing arm 21 are offset, allowing the door panel to achieve a movement trajectory of first moving outward and then translating and folding open during the opening and closing process. This has the effect of saving space during the opening and closing of the door panel.

[0027] More specifically, the length of the first swing arm 21 is greater than the lengths of the second swing arm 22 and the third swing arm 23. The swing arm base 1 is provided with a hinge seat 11. The outer end of the first swing arm 21 is hinged to the hinge seat 11. The hinge seat 11 is provided with a hinge connector 12 connected to it at a position off the hinge center. The outer end of the third swing arm 23 is hinged to the hinge connector 12.

[0028] like Figure 1 and 2 As shown, a reinforcing rib 13 is provided between the lower end of the hinge connector 12 and the hinge seat 11. The hinge connector 12, the hinge seat 11 and the reinforcing rib 13 are connected as one unit. The upper end of the hinge connector 12 extends outward and is hinged to the outer end of the third swing arm 23.

[0029] More specifically, the first swing arm 21 has a reinforcing rib 211 on the side away from the second swing arm 22 and the third swing arm 23, and the driving end of the swing arm drive mechanism 3 is hinged to the reinforcing rib 211.

[0030] like Figure 2 and 5As shown, the cross-section of the first swing arm 21 is U-shaped. The opening side of the first swing arm 21 is provided with a reinforcing rib 211. The reinforcing rib 211 includes two symmetrically arranged trapezoidal plates 212, and the two trapezoidal plates 212 are connected to the first swing arm 21 as a whole. The two trapezoidal plates 212 are provided with a first hinge hole 213. One side of the two trapezoidal plates 212 is provided with a first reinforcing plate 214 for reinforcing the two trapezoidal plates 212, and the other side is provided with a second reinforcing plate 215. The second reinforcing plate 215 is located between the first hinge hole 213 and the lower end of the first swing arm 21 and is connected to the first swing arm 21 and can be used for swing limit.

[0031] More specifically, the swing arm drive mechanism 3 includes a linear driver 31, one end of which is hinged to the base 32 and the other end is hinged to the first hinge hole 213.

[0032] In this embodiment, the linear actuator 31 is a cylinder whose extension and retraction are controlled by a motor.

[0033] More specifically, a second hinge hole 216 is provided between the two trapezoidal plates 212, and a driver connection seat 14 is provided at the bottom of the swing arm base 1. The driver connection seat 14 is connected to the lower hinge seat 33 of the driver through the adjustment plate 15. The inner end of the adjustment plate 15 is connected to the driver connection seat 14, and the bottom of the outer end is provided with a support plate 16. The lower end of the linear driver 31 is hinged to the lower hinge seat 33 of the driver, and the upper end is hinged to the first hinge hole 213.

[0034] More specifically, both sides of the first swing arm 21 are provided with V-shaped reinforcing plates 217.

[0035] More specifically, the first door panel fixing assembly 231 includes a first door panel connecting seat 232 disposed on the side of the third swing arm 23 away from the first swing arm 21. The first door panel connecting seat 232 is provided with a plurality of first bolt holes 233, and the first bolt holes 233 radially penetrate the third swing arm 23.

[0036] In this embodiment, the first swing arm 21, the second swing arm 22 and the third swing arm 23 are all hollow tube structures.

[0037] More specifically, the second door panel fixing assembly 222 includes a plurality of second bolt holes 223 provided on the extension arm 221, and the extension arm 221 is integrated with the second swing arm 22.

[0038] In this embodiment, the second door panel fixing assembly 222 is connected to the top of the door panel, and the first door panel fixing assembly 231 is connected to the side of the door panel near the third swing arm 23. The top and side of the door panel are connected in a way that allows them to rotate relative to each other.

[0039] The working principle of this embodiment is that one or more door opening and closing drive mechanisms of this linear guide grinding machine can be set for door panels of different lengths. When the door panel is opened and closed, the linear driver 31 first starts to control its piston rod to perform telescopic movement after receiving the control signal. The upper end of the linear driver 31 acts on the first hinge hole 213 on the reinforcing rib 211 of the first swing arm 21, driving the first swing arm 21 to swing around its hinge point with the hinge seat 11.

[0040] The first swing arm 21 transmits its motion to the second swing arm 22 through its hinge point with the second swing arm 22. The second swing arm 22 then drives the third swing arm 23 to move. Since the hinge center of the third swing arm 23 on the swing arm base 1 is offset from the hinge center of the first swing arm 21, this geometric constraint forces the three swing arms and the door panel fixed to them to perform a specific composite motion trajectory, that is, swinging while contracting and translating, to achieve the effect of folding and unfolding.

[0041] Throughout the movement, the door panel is connected at its top to the second door panel fixing assembly 222 on the extension arm 221 of the second swing arm 22, and simultaneously connected at its side to the first door panel fixing assembly 231 on the third swing arm 23. This dual-point fixing method effectively prevents the door panel from twisting or wobbling during movement. When the first swing arm 21 swings to a preset limit position, the second reinforcing plate 215 on its reinforcing rib 211 will stop it from moving further. At this point, the door panel reaches its limit position.

[0042] By hinged the upper end of the linear drive 31 to the second hinge hole 216, the lever ratio of the mechanism can be changed to adapt to different load and speed requirements.

[0043] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0044] Although this document frequently uses terms such as swing arm base, hinge seat, hinge connector, reinforcing rib, driver connector, adjustment plate, support plate, multi-link mechanism, first swing arm, reinforcing rib, trapezoidal plate, first hinge hole, first reinforcing plate, second reinforcing plate, second hinge hole, V-shaped reinforcing plate, second swing arm, extension arm, second door panel fixing assembly, second bolt hole, third swing arm, first door panel fixing assembly, first door panel connector, first bolt hole, swing arm drive mechanism, linear driver, base, and driver lower hinge seat, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A door opening and closing drive mechanism for a linear guide grinding machine, characterized in that, The system includes a swing arm base (1) and a multi-link mechanism (2) mounted on the swing arm base (1). The multi-link mechanism (2) includes a first swing arm (21), a second swing arm (22), and a third swing arm (23) that are connected in sequence by hinges. The outer end of the first swing arm (21) is hinged to the swing arm base (1). The outer end of the third swing arm (23) is hinged to the swing arm base (1) and the hinge center is offset from the hinge center of the first swing arm (21). The third swing arm (23) is provided with a first door panel fixing assembly (231). The second swing arm (22) is provided with an extension arm (221) at the end that is hinged to the third swing arm (23). The extension arm (221) is provided with a second door panel fixing assembly (222). The swing arm base (1) is provided with a swing arm drive mechanism (3) that is connected to the first swing arm (21) and can drive it to swing.

2. The door opening and closing drive mechanism of the linear guide grinding machine according to claim 1, characterized in that, The length of the first swing arm (21) is greater than the length of the second swing arm (22) and the third swing arm (23). The swing arm base (1) is provided with a hinge seat (11). The outer end of the first swing arm (21) is hinged to the hinge seat (11). The hinge seat (11) is provided with a hinge connector (12) connected to it at a position off the hinge center. The outer end of the third swing arm (23) is hinged to the hinge connector (12).

3. The door opening and closing drive mechanism of the linear guide grinding machine according to claim 2, characterized in that, A reinforcing rib (13) is provided between the lower end of the hinge connector (12) and the hinge seat (11). The hinge connector (12), the hinge seat (11) and the reinforcing rib (13) are connected as one unit. The upper end of the hinge connector (12) extends outward and is hinged to the outer end of the third swing arm (23).

4. The door opening and closing drive mechanism of the linear guide grinding machine according to claim 1, 2, or 3, characterized in that, The first swing arm (21) is provided with a reinforcing rib (211) on the side away from the second swing arm (22) and the third swing arm (23), and the driving end of the swing arm drive mechanism (3) is hinged to the reinforcing rib (211).

5. The door opening and closing drive mechanism of the linear guide grinding machine according to claim 4, characterized in that, The first swing arm (21) has a U-shaped cross-section. The first swing arm (21) has a reinforcing rib (211) on the open side. The reinforcing rib (211) includes two symmetrically arranged trapezoidal plates (212), and the two trapezoidal plates (212) are connected to the first swing arm (21) as a whole. The two trapezoidal plates (212) have a first hinge hole (213). The two trapezoidal plates (212) have a first reinforcing plate (214) on one side for reinforcing the two trapezoidal plates (212), and a second reinforcing plate (215) on the other side. The second reinforcing plate (215) is located between the first hinge hole (213) and the lower end of the first swing arm (21) and is connected to the first swing arm (21) and can be used for swing limit.

6. The door opening and closing drive mechanism of the linear guide grinding machine according to claim 5, characterized in that, The swing arm drive mechanism (3) includes a linear driver (31), one end of which is hinged to the base (32) and the other end is hinged to the first hinge hole (213).

7. The door opening and closing drive mechanism of the linear guide grinding machine according to claim 6, characterized in that, Several second hinge holes (216) are provided between the two trapezoidal plates (212). The bottom of the swing arm base (1) is provided with a driver connection seat (14). The driver connection seat (14) is connected to the lower hinge seat (33) of the driver through an adjustment plate (15). The inner end of the adjustment plate (15) is connected to the driver connection seat (14), and the bottom of the outer end is provided with a support plate (16). The lower end of the linear driver (31) is hinged to the lower hinge seat (33) of the driver, and the upper end is hinged to the first hinge hole (213) or the second hinge hole (216).

8. The door opening and closing drive mechanism of the linear guide grinding machine according to claim 5, characterized in that, The first swing arm (21) is provided with V-shaped reinforcing plates (217) on both sides.

9. The door opening and closing drive mechanism of the linear guide grinding machine according to claim 1, 2, or 3, characterized in that, The first door panel fixing assembly (231) includes a first door panel connecting seat (232) disposed on the side of the third swing arm (23) away from the first swing arm (21). The first door panel connecting seat (232) is provided with a plurality of first bolt holes (233), and the first bolt holes (233) penetrate the third swing arm (23) radially.

10. The door opening and closing drive mechanism of the linear guide grinding machine according to claim 1, 2, or 3, characterized in that, The second door panel fixing assembly (222) includes a plurality of second bolt holes (223) provided on the extension arm (221), and the extension arm (221) is integrated with the second swing arm (22).

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