Guide rail blocking device

Abstract

The present invention relates to the technical field of conveying guide rails, and discloses a guide rail blocking device, including a blocking mechanism arranged on a first guide rail and a pressing mechanism arranged on a second guide rail, the blocking mechanism including a blocking frame, a counterweight block and a pressing plate, the top end of the blocking frame is rotatably connected to the top end of the first guide rail, the bottom end of the blocking frame is located at the walking channel of the first guide rail, the counterweight block and the pressing plate are respectively arranged on the blocking frame, and when the second guide rail is docked with the first guide rail, the pressing mechanism presses the pressing plate downward to make the bottom end of the blocking frame away from the walking channel of the first guide rail, and the first guide rail is in an open state, and the side panel hanger can be pushed from the first guide rail to the second guide rail, effectively avoiding the safety hazard of the side panel hanger rushing out of the guide rail due to human operating errors.

Description

Technical Field

[0001] The invention relates to the technical field of conveying guide rails, and in particular to a guide rail blocking device. Background Art

[0002] In the automobile manufacturing industry, the stamping side panel warehouse is used to store different stamped side panel parts. After the side panel parts are stamped and formed by the fully automatic stamping production line, they are automatically packed by the end-of-line robot and the side panel chain and then stored in the side panel warehouse with the side panel sling. Then, according to the production plan, the side panel parts of the models to be produced are sent to the welding workshop at the rear through the side panel sling. Because the side panel parts produced in the stamping workshop contain more than 8 sets of left / right side panels of different models, and the production schedule of each side panel part is inconsistent, in most cases, different side panel slings are mixed on a single rail in the side panel warehouse. The existing solution is to use a side panel warehouse translation machine to deal with this situation. The translation machine manually operates the same side panel slings on different rails to flow into the same rail, and then according to the production plan at the rear, the mass-produced side panel parts are sent to the welding workshop.

[0003] When the guide rail of the translator leaves a guide rail of the side enclosure warehouse, the guide rail of the side enclosure warehouse is not docked with the translator and is in an unlimited position state, resulting in the side enclosure hoist being able to freely rush out of the track. Currently, a manual weight block mechanism is set on the guide rail of the side enclosure warehouse to prevent the hoist from rushing out of the guide rail. Its working principle is as follows: (1) When the guide rail of the translator is docked with a guide rail of the side enclosure warehouse, the weight that is randomly equipped on the translator is manually taken out and hung on one end of the block mechanism. The block is manually opened under the action of gravity, so that the side enclosure hoist can be freely pushed onto the guide rail of the translator; (2) When the guide rail of the translator is detached from a guide rail of the side enclosure warehouse, the weight on the block mechanism is taken out in advance and the block mechanism is closed. The side enclosure hoist cannot be pushed freely due to the block restriction, thereby avoiding the risk of the side enclosure hoist rushing out of the guide rail.

[0004] However, the current structure requires workers to manually retrieve and hang a heavy hammer (1.5 kg) each time they switch the rails to store the side panel hoist. They need to walk 22 meters for each operation. According to statistics, they need to repeat the action more than 50 times in daily work, which makes the daily work intensity of workers high. In addition, during the operation, the heavy hammer may not be retrieved or hung on the wrong rail, causing the rear staff to push the side panel hoist directly out of the rail without knowing it, which not only causes the side panel parts to be scrapped, but also poses a safety risk of crushing and cutting surrounding workers. Summary of the invention

[0005] The technical problem to be solved by the present invention is: how to realize automatic control of opening and closing of the guide rails when the guide rails are butted.

[0006] In order to solve the above technical problems, the present invention provides a guide rail blocking device, including a blocking mechanism arranged on a first guide rail and a pressing mechanism arranged on a second guide rail, the blocking mechanism including a blocking frame, a counterweight block and a pressing plate, the top end of the blocking frame is rotatably connected to the top end of the first guide rail, the bottom end of the blocking frame is located at the walking channel of the first guide rail, the counterweight block and the pressing plate are respectively arranged on the blocking frame, the counterweight block and the blocking frame are located on one side of the first guide rail, and the pressing plate extends outward along the other side of the first guide rail, and when the second guide rail is docked with the first guide rail, the pressing mechanism presses the pressing plate downward to make the bottom end of the blocking frame away from the walking channel of the first guide rail.

[0007] As a preferred embodiment, the pressing mechanism includes a fixed rod and a roller, one end of the fixed rod is fixed to the second guide rail, and the roller is rotatably disposed on the other end of the fixed rod. A protrusion with a parabolic profile opening downward is provided on the pressing plate, and when the second guide rail is docked with the first guide rail, the roller and the protrusion are rolled and abutted.

[0008] As a preferred solution, a positioning groove is provided at the parabolic wave crest of the projection.

[0009] As a preferred embodiment, the blocking mechanism also includes a first base for fixing the blocking frame, the first base includes a first clamping plate, a first support plate and a rotating shaft, the first clamping plate is detachably arranged on the top end of the first guide rail, the first support plate is arranged on the first clamping plate, and the blocking frame is mounted on the first support plate through the rotating shaft.

[0010] As a preferred solution, the axial direction of the rotating shaft is parallel to the length direction of the first guide rail.

[0011] As a preferred embodiment, the pressing mechanism also includes a second base for fixing the fixing rod, the second base includes a second clamping plate and a second support plate, the second clamping plate is detachably arranged on the top end of the second guide rail, the second support plate is arranged on the second clamping plate, and the fixing rod is arranged on the second support plate.

[0012] As a preferred solution, the axial direction of the fixing rod is parallel to the length direction of the second guide rail.

[0013] As a preferred solution, the second clamping plate is provided with an adjustment groove connected to the second supporting plate, and the adjustment groove is arranged along the vertical direction.

[0014] As a preferred solution, a buffer block is provided between the blocking frame and the first guide rail.

[0015] As a preferred solution, the height of the first guide rail is greater than that of the second guide rail, and the pressure plate is located at the front end of the first guide rail.

[0016] Compared with the prior art, the guide rail blocking device provided by the present invention has the following beneficial effects:

[0017] In the present invention, the blocking frame is rotatably arranged on the first guide rail. When the first guide rail and the second guide rail are not connected, the counterweight block makes the bottom end of the blocking frame located at the position of the walking channel of the first guide rail under the action of gravity, thereby limiting the first guide rail and being in a closed state, the side panel hanger cannot be pushed out from the first guide rail. When the first guide rail and the second guide rail are connected, the pressing mechanism presses the pressing plate downward against the gravity of the counterweight block, driving the blocking frame to rotate upward, so that the bottom end of the blocking frame is away from the walking channel of the first guide rail. The first guide rail is in an open state, and the side panel hanger can be pushed from the first guide rail to the second guide rail, effectively avoiding the safety hazard of the side panel hanger rushing out of the guide rail due to human operating errors. In addition, the device is a purely mechanical structure design with a simple and stable structure, low maintenance cost, and no additional energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a guide rail blocking device in a preferred embodiment of the present invention in a state where the first guide rail and the second guide rail are not docked.

[0019] Figure 2 It is a structural schematic diagram of the docking state of the first guide rail and the second guide rail in the guide rail blocking device of the preferred embodiment of the present invention.

[0020] Figure 3 It is a schematic structural diagram of the closed state of the blocking mechanism in the guide rail blocking device according to the preferred embodiment of the present invention.

[0021] Figure 4 It is a schematic structural diagram of the opening state of the blocking mechanism in the guide rail blocking device according to the preferred embodiment of the present invention.

[0022] Figure 5 It is a structural schematic diagram of the pressing mechanism in the guide rail blocking device of the preferred embodiment of the present invention.

[0023] In the figure: 1. Side enclosure hanger; 2. First guide rail; 3. Second guide rail; 4. Blocking frame; 5. Counterweight; 6. Pressure plate; 7. Fixed rod; 8. Roller; 9. Boss; 10. Positioning groove; 11. First clamping plate; 12. First support plate; 13. Rotating shaft; 14. Second clamping plate; 15. Second support plate; 16. Adjustment groove; 17. Buffer block. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, it should be understood that the terms "connected", "connected", "fixed" and the like used in the present invention should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a welding connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figures 1 to 5 As shown, a preferred embodiment of the present invention provides a guide rail blocking device, including a blocking mechanism arranged on the first guide rail 2 and a pressing mechanism arranged on the second guide rail 3, the blocking mechanism including a blocking frame 4, a counterweight block 5 and a pressing plate 6, the top end of the blocking frame 4 is rotatably connected to the top end of the first guide rail 2, the bottom end of the blocking frame 4 is located at the walking channel of the first guide rail 2, the counterweight block 5 and the pressing plate 6 are respectively arranged on the blocking frame 4, the counterweight block 5 and the blocking frame 4 are located on one side of the first guide rail 2, and the pressing plate 6 extends outward along the other side of the first guide rail 2, and when the second guide rail 3 is docked with the first guide rail 2, the pressing mechanism presses the pressing plate 6 downward to make the bottom end of the blocking frame 4 away from the walking channel of the first guide rail 2.

[0028] Based on the guide rail blocking device of the above technical characteristics, the blocking frame 4 is rotatably set on the first guide rail 2. When the first guide rail 2 and the second guide rail 3 are not connected, the counterweight block 5 makes the bottom end of the blocking frame 4 located at the position of the walking channel of the first guide rail 2 under the action of gravity, which restricts the first guide rail 2 and is in a closed state. The side panel hanger 1 cannot be pushed out from the first guide rail 2. When the first guide rail 2 and the second guide rail 3 are connected, the pressing mechanism presses the pressing plate 6 downward against the gravity of the counterweight block 5, driving the blocking frame 4 to rotate upward, so that the bottom end of the blocking frame 4 is away from the walking channel of the first guide rail 2. The first guide rail 2 is in an open state, and the side panel hanger 1 can be pushed from the first guide rail 2 to the second guide rail 3, effectively avoiding the safety hazard of the side panel hanger 1 rushing out of the guide rail due to human operating errors. In addition, the device is a purely mechanical structure design with a simple and stable structure, low maintenance cost, and no additional energy loss.

[0029] Among them, in this embodiment, the first guide rail 2 refers to the guide rail of the side enclosure warehouse, the second guide rail 3 refers to the guide rail of the translation machine, the counterweight block 5 and the pressure plate 6 are relatively arranged on both sides of the rotation center, and the blocking frame 4 is opened and closed by using the lever principle.

[0030] In this embodiment, the pressing mechanism includes a fixed rod 7 and a roller 8, one end of the fixed rod 7 is fixed to the second guide rail 3, and the roller 8 is rotatably arranged on the other end of the fixed rod 7, and the pressing plate 6 is provided with a protrusion 9 with a parabolic profile opening downward, when the second guide rail 3 is docked with the first guide rail 2, the roller 8 rolls and abuts against the protrusion 9, wherein the parabola extends along the left and right sides of the first guide rail 2, so that the second guide rail 3 moves from the side of the first guide rail 2 to the docking position, during which the roller 8 rolls and abuts against the curved surface of the protrusion 9, and when the roller 8 rolls to the parabolic peak position of the protrusion 9, the second guide rail 3 and the first guide rail 2 are completely aligned, and the blocking frame 4 rotates upward at the maximum angle, so that the blocking frame 4 and the first guide rail 2 form an open state, allowing the side enclosure hanger 1 to be pushed in or out from the first guide rail 2.

[0031] Among them, it is calculated based on the actual structural dimensions that the height of the protrusion 9 is 50 mm, and the maximum slope of the parabolic surface of the protrusion 9 is 44.62°. Since the entire translation machine is driven by the friction wheel, if the resistance of the protrusion 9 to the roller 8 is greater than the static friction of the translation machine, slippage will occur. The greater the inclination angle of the parabola of the protrusion 9, the greater the slope, and the greater the resistance to the translation machine drive. Therefore, the maximum slope of the protrusion 9 needs to be calculated based on the movement acceleration and friction of the driving wheel to obtain the maximum slope to ensure that the first guide rail 2 and the second guide rail 3 can be docked under the resistance formed by the protrusion 9 on the roller 8.

[0032] Furthermore, a positioning groove 10 is provided at the parabolic wave crest of the protrusion 9. When the roller 8 is located on the positioning groove 10, the second guide rail 3 and the first guide rail 2 are fully aligned, realizing the positioning function when fully aligned, and the blocking frame 4 is in an open state, reducing the waste of excessive working time caused by repeated alignment during manual operation and improving work efficiency.

[0033] In this embodiment, combined with Figure 3 to Figure 4 As shown, the blocking mechanism also includes a first base for fixing the blocking frame 4, the first base includes a first clamping plate 11, a first support plate 12 and a rotating shaft 13, the first clamping plate 11 is detachably arranged on the top of the first guide rail 2, the first support plate 12 is arranged on the first clamping plate 11, and the blocking frame 4 is installed on the first support plate 12 through the rotating shaft 13, wherein the first clamping plate 11 is fixed to the first guide rail 2 by bolts, so that the first base can adjust the position, and the blocking frame 4 can rotate relative to the rotating shaft 13 to realize the opening and closing of the blocking frame 4. Furthermore, the axial direction of the rotating shaft 13 is parallel to the length direction of the first guide rail 2, so that the blocking frame 4 rotates along a plane perpendicular to the length direction of the first guide rail 2, and is quickly opened and closed.

[0034] Among them, the rotating shaft 13 and the mounting hole of the first support plate 12 are fixed and lubricated by an oil-free bushing (MPFZU20-40) which does not require inspection and maintenance. The blocking mechanism is mainly affected by the impact force of the side panel hanger 1, its own gravity and the bending moment generated by the roller 8 and the protrusion 9 when the guide rails are docked. The blocking mechanism is stress-checked, and the maximum equivalent stress is 18.21MPa, the maximum deformation is 0.18mm, and the minimum safety factor is 11.37, which meets the requirements for on-site use.

[0035] In this embodiment, combined with Figure 5As shown, the pressing mechanism also includes a second base for fixing the fixing rod 7, the second base includes a second clamping plate 14 and a second support plate 15, the second clamping plate 14 is detachably arranged on the top of the second guide rail 3, the second support plate 15 is arranged on the second clamping plate 14, and the fixing rod 7 is arranged on the second support plate 15, wherein the second clamping plate 14 is fixed to the second guide rail 3 by bolts, so that the second base can adjust the position to correspond to the position of the blocking mechanism. Furthermore, the axial direction of the fixing rod 7 is parallel to the length direction of the second guide rail 3, so that the rolling direction of the roller 8 is consistent with the rotation direction of the blocking frame 4.

[0036] Furthermore, the second clamping plate 14 is provided with an adjustment groove 16 connected to the second support plate 15, and the adjustment groove 16 is arranged along the vertical direction to adjust the upper and lower positions of the roller 8 to ensure that when the second guide rail 3 and the first guide rail 2 are docked, the roller 8 can roll and abut against the protrusion 9.

[0037] In this embodiment, a buffer block 17 is provided between the blocking frame 4 and the first guide rail 2. Under the action of the gravity of the counterweight block 5, when the bottom end of the blocking frame 4 is close to the first guide rail 2 to form a closed state, the buffer block 17 plays a role of silencing and buffering, thereby preventing the blocking frame 4 from colliding violently with the first guide rail 2 and causing damage to the blocking mechanism and the first guide rail 2.

[0038] In this embodiment, the bottom end of the blocking frame 4 is L-shaped, so that when the blocking mechanism is in a closed state, the bottom end of the blocking frame 4 surrounds the first guide rail 2 to ensure that the travel channel of the first guide rail 2 is restricted.

[0039] In this embodiment, the height of the first guide rail 2 is greater than that of the second guide rail 3, and the pressure plate 6 is located at the front end of the first guide rail 2. The space formed by the height difference between the first guide rail 2 and the second guide rail 3 is used to accommodate the pressure plate 6, thereby reducing the installation space occupied by the blocking device and making the overall structure more compact.

[0040] In summary, the embodiment of the present invention provides a guide rail blocking device with the following advantages: (1) Only when the first guide rail 2 and the second guide rail 3 are correctly docked can the blocking frame 4 be in the open state, which effectively prevents the first guide rail 2 from being in the open state due to human operational errors, and also avoids the safety hazard of the side wall sling 1 rushing out of the guide rail when the guide rails are not docked or aligned, causing injuries or crushing to people; (2) The docking accuracy of the guide rails of the translation machine is improved, and the positioning groove 10 on the protrusion 9 is used to realize automatic centering of the guide rails, thereby reducing the excessive work time wasted due to repeated centering during manual operation and improving work efficiency; (3) The labor intensity of the operating personnel is reduced, and the switching time of the guide rails of the side wall warehouse translation machine is reduced by 65s / time, the side wall switching time can be shortened by more than 162.5min per day, and the walking distance of the staff is reduced by more than 1500 meters / day; (4) The device is a mechanical structure design with lower manufacturing cost, simple and stable structure, low maintenance cost, and no additional energy loss, which is more suitable for the stamping field.

[0041] The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A guide rail blocking device, It is characterized in that The invention comprises a blocking mechanism arranged on the first guide rail and a pressing mechanism arranged on the second guide rail, wherein the blocking mechanism comprises a blocking frame, a counterweight block and a pressing plate, the top end of the blocking frame is rotatably connected to the top end of the first guide rail, the bottom end of the blocking frame is located at the walking channel of the first guide rail, the counterweight block and the pressing plate are respectively arranged on the blocking frame, the counterweight block and the blocking frame are located on one side of the first guide rail, and the pressing plate extends outward along the other side of the first guide rail, and when the second guide rail is docked with the first guide rail, the pressing mechanism presses the pressing plate downward to make the bottom end of the blocking frame away from the walking channel of the first guide rail; The pressing mechanism comprises a fixed rod and a roller, one end of the fixed rod is fixed to the second guide rail, the roller is rotatably arranged at the other end of the fixed rod, the pressing plate is provided with a convex block with a parabolic profile opening downward, when the second guide rail is docked with the first guide rail, the roller rolls and abuts against the convex block; A positioning groove is provided at the parabolic wave crest of the projection; The blocking mechanism also includes a first base for fixing the blocking frame, the first base includes a first clamping plate, a first support plate and a rotating shaft, the first clamping plate is detachably arranged on the top end of the first guide rail, the first support plate is arranged on the first clamping plate, and the blocking frame is installed on the first support plate through the rotating shaft.

2. The guide rail blocking device according to claim 1, It is characterized in that The axial direction of the rotating shaft is parallel to the length direction of the first guide rail.

3. The guide rail blocking device according to claim 1, It is characterized in that The pressing mechanism also includes a second base for fixing the fixing rod, the second base includes a second clamping plate and a second support plate, the second clamping plate is detachably arranged on the top end of the second guide rail, the second support plate is arranged on the second clamping plate, and the fixing rod is arranged on the second support plate.

4. The guide rail blocking device according to claim 3, It is characterized in that The axial direction of the fixing rod is parallel to the length direction of the second guide rail.

5. The guide rail blocking device according to claim 3, It is characterized in that The second clamping plate is provided with an adjusting groove connected with the second supporting plate, and the adjusting groove is arranged along the vertical direction.

6. The guide rail blocking device according to any one of claims 1 to 5, It is characterized in that A buffer block is provided between the blocking frame and the first guide rail.

7. The guide rail blocking device according to any one of claims 1 to 5, It is characterized in that The height of the first guide rail is greater than that of the second guide rail, and the pressing plate is located at the front end of the first guide rail.

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