Roller bed lifting system

Abstract

The utility model provides a roller bed lifting system, which belongs to the field of roller bed lifting mechanisms and comprises a supporting mechanism, two groups of lifting guide rods are arranged on one side, far away from the ground, of the supporting mechanism, and the two groups of lifting guide rods are positioned at two ends of the supporting mechanism; the lifting assembly is arranged on the supporting mechanism and located between the two sets of lifting guide rods. The lifting panel is movably arranged on the surface of the supporting mechanism through a lifting assembly and is limited through a lifting guide rod; a first end face is arranged on the lifting panel; a first groove is formed in the position, away from the first end face, of the lifting panel, and a skid blocking mechanism is arranged in the first groove. And the skid blocking mechanism is lifted to block the skid.

Description

Technical Field

[0001] The utility model belongs to the field of roller bed lifting mechanisms, and particularly relates to a roller bed lifting system. Background Art

[0002] Roller bed lifting systems and roller beds are commonly used in the white body welding line. At present, due to the limitations of the factory area layout and the scheme, the positioning accuracy of some roller bed lifting systems is poor. During the operation of the skid, overtravel often occurs, resulting in inaccurate positioning, and workers need to perform secondary calibration. Therefore, a roller bed lifting system that can limit the overtravel of the skid is needed. Summary of the Utility Model

[0003] In view of the above problems, the utility model provides a roller bed lifting system, including:

[0004] A support mechanism, on the side of the support mechanism away from the ground, two sets of lifting guide rods are provided, and the two sets of lifting guide rods are located at both ends of the support mechanism;

[0005] A lifting assembly, the lifting assembly is arranged on the support mechanism, and the lifting assembly is located between the two sets of lifting guide rods;

[0006] A lifting panel, the lifting panel is movably arranged on the surface of the support mechanism through the lifting assembly and is limited by the lifting guide rods; a first end face is provided on the lifting panel;

[0007] A skid blocking mechanism, a first groove is provided at a position on the lifting panel away from the first end face, and the skid blocking mechanism is arranged in the first groove; the skid is blocked by raising the skid blocking mechanism.

[0008] Further, the skid blocking mechanism includes:

[0009] A cylinder, the bottom of the cylinder block of the cylinder is installed in the first groove, and a connecting frame is installed at the end of the piston end;

[0010] A buffer, the buffer is installed at one end of the connecting frame away from the cylinder.

[0011] Further, the lifting assembly includes:

[0012] A first motor, the first motor is fixedly installed on the support mechanism, and its motor shaft is fixedly connected with a small synchronous pulley;

[0013] A transmission shaft, two transmission shafts are rotatably installed on the support mechanism, and the two transmission shafts are located on both sides of the first motor; one end of the transmission shaft is connected with a large synchronous pulley, the large synchronous pulley and the small synchronous pulley are on the same side, and the other end of the transmission shaft is installed with a cam; the cam contacts the lifting panel;

[0014] A timing belt is installed on the small timing pulley and the large timing pulley.

[0015] Furthermore, the lifting assembly further includes a rotating sleeve which is rotatably mounted on the eccentric shaft of the cam; the rotating sleeve contacts the contact plate on the lifting panel.

[0016] Furthermore, the lifting system further includes a skid positioning mechanism which is fixedly installed on the support mechanism and is located between the first motor and the transmission shaft near the first end face.

[0017] Furthermore, the support mechanism includes:

[0018] A roller bed frame, with a fixture reference surface provided at the middle position of the roller bed frame, and a connecting seat provided on the side of the roller bed frame away from the fixture reference surface.

[0019] Furthermore, the lifting system further includes a detection assembly which is fixedly installed on the roller bed frame and is located between the lifting guide rod and the lifting assembly.

[0020] Furthermore, the lifting system further includes:

[0021] A skid driving mechanism, with multiple skid driving mechanisms arranged in sequence on the lifting panel; the skid driving mechanism includes:

[0022] A rotating shaft, with skid side guide wheels respectively installed at both ends of the rotating shaft;

[0023] A conveyor belt pulley, which is installed at one end of the rotating shaft and is located inside the two skid side guide wheels;

[0024] A conveyor belt, with multiple conveyor belts respectively installed on the conveyor belt pulleys of adjacent two skid driving mechanisms;

[0025] A second motor, with a second motor provided outside the lifting panel, and the motor shaft of the second motor is connected to the rotating shaft.

[0026] Furthermore, the lifting system further includes

[0027] Multiple groups of horizontal rollers, with at least one group of horizontal rollers arranged between adjacent two skid driving mechanisms, and multiple groups of horizontal rollers and multiple skid driving mechanisms are located on the same straight line; the horizontal rollers are rotatably arranged on the lifting panel.

[0028] Furthermore, the lifting system further includes a horizontal conveying detection mechanism which is installed at the position near the first end face and / or away from the first end face on the first side of the lifting panel.

[0029] Furthermore, the lifting system further includes a skid inlet guide wheel, and the skid inlet guide wheel is arranged on the first end face.

[0030] Advantages of the present utility model:

[0031] 1. The present utility model is provided with a skid blocking mechanism. The cylinder of the skid blocking mechanism drives the buffer to rise to block the skid, thereby preventing the workpiece on the skid from exceeding the lifting panel and preventing the skid from overtraveling; when the cylinder drives the buffer to lower, it is convenient for the second motor to drive the skid side guide wheel of the skid driving mechanism, and the skid side guide wheel drives the skid into the next process.

[0032] 2. In the present utility model, a fixture reference surface is arranged at the middle position of the roller bed frame. The fixture reference surface is the fixture Base surface, and the fixture reference surface is integrated with the roller bed frame, saving space and improving accuracy. Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 Shows the overall schematic diagram of the roller bed lifting system in the embodiment of the present utility model.

[0035] Figure 2 Shows the installation position schematic diagram of the support mechanism and the lifting assembly in the embodiment of the present utility model.

[0036] Figure 3 Shows Figure 2 The enlarged schematic diagram of the structure at position A.

[0037] Figure 4 Shows the installation position schematic diagram of the lifting panel and the skid blocking mechanism in the embodiment of the present utility model.

[0038] Figure 5 Shows Figure 4 The enlarged schematic diagram of the structure at position B.

[0039] Figure 6 Shows Figure 4 The enlarged schematic diagram of the structure at position C.

[0040] Figure 7 Shows Figure 4 The enlarged schematic diagram of the structure at position D.

[0041] Figure 8Shows a schematic structural diagram of the skid blocking mechanism.

[0042] Figure 9 Shows a specific structural schematic diagram of the skid drive mechanism.

[0043] In the figure, 1 is the support mechanism; 101 is the roller bed frame; 102 is the fixture reference surface; 103 is the connecting seat;

[0044] 2 is the lifting assembly; 201 is the transmission shaft; 202 is the cam; 203 is the rotating sleeve; 204 is the contact plate; 205 is the first motor; 206 is the small synchronous pulley; 207 is the synchronous belt; 208 is the large synchronous pulley;

[0045] 3 is the lifting guide rod; 4 is the detection assembly; 5 is the skid positioning mechanism;

[0046] 6 is the lifting panel; 61 is the first groove; 62 is the first end face; 63 is the first side face;

[0047] 7 is the horizontal roller; 8 is the skid drive mechanism; 81 is the rotating shaft; 82 is the skid side guide wheel; 83 is the conveyor belt; 84 is the conveyor belt pulley; 9 is the skid inlet guide wheel; 10 is the horizontal conveying detection mechanism; 11 is the skid blocking mechanism; 111 is the cylinder; 112 is the connecting frame; 113 is the buffer; 114 is the limit switch; 115 is the proximity switch; 116 is the limit block;

[0048] 12 is the second motor; 13 is the limit groove; 14 is the skid. Detailed implementation manners

[0049] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0050] As Figure 1 shown, Figure 1 shows an overall schematic diagram of the roller bed lifting system in the embodiments of the present invention. Refer to Figure 1 ,

[0051] A roller bed lifting system, comprising: a support mechanism 1, on the side of the support mechanism 1 away from the ground, two groups of lifting guide rods 3 are provided, and the two groups of lifting guide rods 3 are located at both ends of the support mechanism 1; the two groups of lifting guide rods 3 are respectively fixedly installed at both ends of the fixture reference surface 102, and each group of lifting guide rods 3 has two lifting guide rods 3, which are respectively fixedly installed at two corners at one end of the fixture reference surface 102; the two groups of lifting guide rods 3 are located on both sides of the lifting assembly 2. The lifting panel 6 is slidably installed on the lifting guide rods 3, and the lifting guide rods 3 are used to limit the lifting panel 6. The lifting assembly 2 is arranged on the support mechanism 1, and the lifting assembly 2 is located in the middle of the two groups of lifting guide rods 3; a limiting groove 13 is respectively provided at the four corners of the lifting panel 6, and the limiting groove 13 is slidably installed on the lifting guide rods 3 (refer to Figure 1 ); the lifting panel 6 is located on the side of the lifting assembly 2 away from the support mechanism 1, and the lifting panel 6 is in contact with the lifting assembly 2; a first end face 62 is provided on the lifting panel 6, the first end face 62 is the end face of the lifting panel 6, and a first groove 61 is provided at a position on the lifting panel 6 close to the output end of the skid, and the first groove 61 is located away from the first end face 62. A skid blocking mechanism 11 is provided in the first groove 61.

[0052] Specifically, as Figure 8 shown, the bottom of the cylinder block of the cylinder 111 of the skid blocking mechanism 11 is fixedly installed in the first groove 61, and its piston end is provided with a connecting frame 112; a limit switch 114 and a proximity switch 115 are provided on the connecting frame 112, and the proximity switch 115 is located above the connecting frame 112, and the proximity switch 115 is used to limit the maximum stroke of the buffer 113, that is, when the proximity switch 115 detects that the buffer 113 rises to a specified position, the proximity switch 115 transmits a signal to the controller to control the cylinder 111 to stop working;

[0053] The limit switch 114 is located below the connecting frame 112, and the limit switch 114 is used to limit the minimum stroke of the buffer 113. When the limit switch 114 detects the maximum stroke of the connecting frame 112 descending, that is, when the connecting frame 112 drives the limit switch 114 to touch the lifting panel 6, it transmits to the controller to control the cylinder 111 to stop working; the buffer 113 is installed at one end of the connecting frame 112 away from the cylinder 111, and a limit block 116 is provided on the connecting frame 112, and the limit block 116 is used to intercept the skid 14 after the buffer 113 fails, so as to stop the skid 14.

[0054] The cylinder 111 is used to drive the buffer 113 to move up and down. When the cylinder 111 drives the buffer 113 to rise to block the skid 14, it can prevent the workpiece on the skid 14 from exceeding the lifting panel 6, thus avoiding inaccurate positioning. When the cylinder 111 drives the buffer 113 to lower, it is convenient for the second motor 12 to drive the side guide wheel 82 of the skid drive mechanism 8, and the side guide wheel 82 of the skid drives the skid 14 into the next process. This solution can meet the function of importing skids with the same width, and thus can adapt to the maintenance of different vehicles.

[0055] As Figure 2 and Figure 3 shown, Figure 2 Fig. shows a schematic diagram of the installation positions of the support mechanism 1 and the lifting assembly 2 in an embodiment of the present invention. Figure 3 Fig. shows Figure 2 an enlarged schematic view of the structure at position A of Figure 2 and Figure 3 .

[0056] The lifting assembly 2 includes a first motor 205, which is fixedly installed on the support mechanism 1, and its motor shaft is fixedly connected to a small synchronous pulley 206. The transmission shaft 201 is rotatably installed on the support mechanism 1. One end of the transmission shaft 201 is connected with a large synchronous pulley 208. The large synchronous pulley 208 and the small synchronous pulley 206 are on the same side. The other end of the transmission shaft 201 is installed with a cam 202. The cam 202 contacts the lifting panel 6. A synchronous belt 207 is installed on the small synchronous pulley 206 and the large synchronous pulley 208. The rotating sleeve 203 is rotatably installed on the eccentric shaft of the cam 202. The rotating sleeve 203 contacts the contact plate 204 on the lifting panel 6. A bearing is installed inside the rotating sleeve 203 to reduce friction.

[0057] Specifically, two transmission shafts 201 are provided. Both transmission shafts 201 are installed between two sets of detection components 4 and are respectively close to the two sets of detection components 4. One end of each transmission shaft 201 is connected with a large synchronous pulley 208, and the other end of the transmission shaft 201 is installed with a cam 202. A first motor 205 is installed between the two transmission shafts 201. The first motor 205 is fixedly installed on the roller bed frame 101. The first motor 205 is an R series motor. Using the R series motor improves the maintainability and spare part replaceability. It avoids the disadvantages of the traditional lifting roller bed and the fixture being separated and difficult to maintain, simplifies the roller bed lifting structure, reduces the manufacturing cost of the equipment, makes the structure simple, is more convenient for equipment maintenance, and improves the utilization rate of the equipment. The first motor 205 drives the two transmission shafts 201 to rotate synchronously through the synchronous belt 207, thereby realizing the simultaneous lifting of the lifting panel 6.

[0058] In the above embodiments, optionally, another implementation is that the support mechanism 1 includes: a roller bed frame 101, a fixture reference surface 102 is provided at the middle position of the roller bed frame 101, and a connecting seat 103 is provided below the roller bed frame 101. There are multiple connecting seats 103, and the connecting seats 103 are symmetrically installed below the roller bed frame 101, and the device is connected to the ground through the connecting seats 103; the fixture reference surface 102 is the fixture Base surface, and the fixture reference surface 102 is integrated with the roller bed frame 101, saving space.

[0059] The lifting system further includes a detection component 4. The detection component 4 is fixedly installed on the roller bed frame 101, and the detection component 4 is located between the two sets of lifting guide rods 3. The detection component 4 is used to detect the lifting state of the lifting panel 6.

[0060] As Figure 4 and 6 shown, Figure 4 Fig. shows the installation position schematic diagram of the lifting panel 6 and the skid blocking mechanism 11 in the embodiment of the present invention. Figure 6 Fig. shows Figure 4 the enlarged schematic diagram of the structure at position C. Refer to Figure 4 and 6 ,

[0061] The lifting system further includes a skid positioning mechanism 5. The skid positioning mechanism 5 is fixedly installed on the fixture reference surface 102, and is located between the two sets of detection components 4, and is located between the first motor 205 and the transmission shaft 201 close to the first end face 62. The skid positioning mechanism 5 is used to position the skid 14.

[0062] As Figure 4 and 5 shown, Figure 4 Fig. shows the installation position schematic diagram of the lifting panel 6 and the skid blocking mechanism 11 in the embodiment of the present invention. Figure 5 Fig. shows Figure 4 the enlarged schematic diagram of the structure at position B. Refer to Figure 4 and 5 , the lifting system further includes a plurality of skid driving mechanisms 8. The plurality of skid driving mechanisms 8 are sequentially arranged on the lifting panel 6. Each skid driving mechanism 8 includes a rotating shaft 81, and skid side guide wheels 82 are respectively installed at both ends of the rotating shaft 81; a conveyor belt wheel 84 is installed at one end of the rotating shaft 81 and is located inside the two skid side guide wheels 82; a plurality of conveyor belts 83 are sequentially installed on the conveyor belt wheels 84 of the adjacent two skid driving mechanisms 8; a second motor 12 is provided outside the lifting panel 6, and the motor shaft of the second motor 12 is connected to the rotating shaft 81 (please refer to Figure 9) Specifically, the skid drive mechanism 8 is rotatably mounted on the lifting panel 6. The side guide wheels 82 of the skid are used to drive the skid 14. At least one set of horizontal rollers 7 is arranged between adjacent two skid drive mechanisms 8, and multiple sets of horizontal rollers 7 and multiple skid drive mechanisms 8 are located on the same straight line; each set of horizontal rollers 7 includes two symmetrically mounted horizontal rollers 7, and the horizontal rollers 7 are rotatably arranged on the lifting panel 6.

[0063] As Figure 4 and 7 shown, Figure 4 Fig. shows the schematic installation positions of the lifting panel 6 and the skid blocking mechanism 11 in the embodiment of the present invention. Figure 7 Fig. shows Figure 4 the enlarged schematic view of the structure at position D of Figure 4 and 7 Referring to

[0064] Working principle:

[0065] When the present invention is working, the first motor 205 works to drive the small synchronous pulley 206 to rotate, and then drives the large synchronous pulley 208 to rotate, driving the transmission shaft 201 to rotate. The rotation of the transmission shaft 201 drives the cam 202 and then drives the lifting panel 6 to rise. After rising to the specified position, it is docked with the previous station and receives the skid from the previous station. The previous station transports the skid onto the lifting panel 6. Next, the second motor 12 drives the side guide wheels 82 of the skid to drive the skid to move. At the same time, the horizontal conveying detection mechanism 10 detects the position of the skid, and the skid positioning mechanism 5 is raised in advance to prevent the skid from exceeding the range;

[0066] After the skid is completely moved onto the lifting panel 6, the first motor 205 operates to drive the small synchronous pulley 206 to rotate, which in turn drives the large synchronous pulley 208 to rotate, driving the transmission shaft 201 to rotate. The rotation of the transmission shaft 201 drives the cam 202 to rotate. Under the action of the gravity of the skid and the lifting panel 6, it descends. During the descent, the crossbar of the skid is caught in the second groove of the skid positioning mechanism 5 to further position the skid. Then, the workpiece on the skid is processed. After the process is completed, the first motor 205 operates to drive the cam 202 to drive the lifting panel 6 to rise until it docks with the next station. After docking, the buffer 113 is driven to descend by the cylinder 111, and then the skid driving mechanism 8 is driven by the second motor 12 to convey the skid 14 to the next station.

[0067] Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A roller bed lifting system, characterized in that: include: A support mechanism (1), wherein two groups of lifting guide rods (3) are arranged on a side of the support mechanism (1) away from the ground, and the two groups of lifting guide rods (3) are located at two ends of the support mechanism (1); A lifting component (2), wherein the lifting component (2) is arranged on the supporting mechanism (1), and the lifting component (2) is located between the two sets of lifting guide rods (3); A lifting panel (6), wherein the lifting panel (6) is movably arranged on the surface of the support mechanism (1) through a lifting assembly (2) and is limited in position by a lifting guide rod (3); a first end surface (62) is provided on the lifting panel (6); A slide blocking mechanism (11) is provided with a first groove (61) at a position of the lifting panel (6) away from the first end surface (62), and a slide blocking mechanism (11) is provided in the first groove (61); the slide (14) is raised up by the slide blocking mechanism (11).

2. A roller bed lifting system according to any one of claim 1, characterized in that: The sled blocking mechanism (11) comprises: A cylinder (111), wherein the bottom of the cylinder body of the cylinder (111) is installed in the first groove (61), and a connecting frame (112) is installed at the piston end of the cylinder (111); A buffer (113) is installed at an end of the connecting frame (112) away from the cylinder (111).

3. A roller bed lifting system according to claim 1 or 2, characterized in that: The lifting assembly (2) comprises: A first motor (205), the first motor (205) is fixedly mounted on the support mechanism (1), and its motor shaft is fixedly connected to a small synchronous pulley (206); A transmission shaft (201), wherein two transmission shafts (201) are rotatably mounted on the support mechanism (1), and the two transmission shafts (201) are located on both sides of the first motor (205); one end of the transmission shaft (201) is connected to a large synchronous pulley (208), and the large synchronous pulley (208) and the small synchronous pulley (206) are located on the same side; a cam (202) is installed on the other end of the transmission shaft (201); and the cam (202) is in contact with the lifting panel (6); A synchronous belt (207) is installed on the small synchronous belt pulley (206) and the large synchronous belt pulley (208).

4. A roller bed lifting system according to claim 3, characterized in that: The lifting assembly (2) further comprises a rotating sleeve (203), wherein the rotating sleeve (203) is rotatably mounted on an eccentric shaft on the cam (202); the rotating sleeve (203) is in contact with a contact plate (204) on the lifting panel (6).

5. A roller bed lifting system according to claim 4, characterized in that: The lifting system further comprises a sled positioning mechanism (5), wherein the sled positioning mechanism (5) is fixedly mounted on the support mechanism (1) and is located between the first motor (205) and the transmission shaft (201) close to the first end surface (62).

6. The roller bed lifting system according to claim 1, characterized in that: The supporting mechanism (1) comprises: A roller bed frame (101) is provided with a fixture reference surface (102) at the middle position of the roller bed frame (101), and a connecting seat (103) is provided on a side of the roller bed frame (101) away from the fixture reference surface (102).

7. The roller bed lifting system according to claim 6, characterized in that: The lifting system further comprises a detection component (4), wherein the detection component (4) is fixedly mounted on the roller bed frame (101), and the detection component (4) is located between the lifting guide rod (3) and the lifting component (2).

8. The roller bed lifting system according to claim 1, characterized in that: The lifting system also includes: A sled driving mechanism (8), wherein a plurality of sled driving mechanisms (8) are sequentially arranged on the lifting panel (6); the sled driving mechanism (8) comprises: A rotating shaft (81), with side guide wheels (82) of a sled mounted on both ends of the rotating shaft (81); A conveyor belt wheel (84), the conveyor belt wheel (84) is installed on one end of the rotating shaft (81) and is located on the inner side of the two sled side guide wheels (82); A conveyor belt (83), wherein a plurality of the conveyor belts (83) are sequentially mounted on conveyor belt wheels (84) of two adjacent sled drive mechanisms (8); A second motor (12) is arranged outside the lifting panel (6), and a motor shaft of the second motor (12) is connected to the rotating shaft (81).

9. The roller bed lifting system according to claim 8, characterized in that: The lifting system further comprises: A plurality of groups of horizontal rollers (7), wherein at least one group of horizontal rollers (7) is arranged between two adjacent sled drive mechanisms (8), and the plurality of groups of horizontal rollers (7) and the plurality of sled drive mechanisms (8) are located on the same straight line; the horizontal rollers (7) are rotatably arranged on the lifting panel (6).

10. A roller bed lifting system according to any one of claims 4 to 9, characterized in that: The lifting system further comprises a horizontal conveying detection mechanism (10), wherein the horizontal conveying detection mechanism (10) is installed on the first side surface (63) of the lifting panel (6) close to the first end surface (62) and / or away from the first end surface (62).

11. A roller bed lifting system according to any one of claim 10, characterized in that: The lifting system further comprises a sled entrance guide wheel (9), and a sled entrance guide wheel (9) is arranged on the first end surface (62).

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