Cam lifting device

Abstract

The utility model discloses a cam lifting device which comprises a base, a driving mechanism and a lifting assembly, the driving mechanism is arranged on the upper portion of the base, and the lifting assembly is arranged on the upper portion of the base. The driving mechanism comprises a driving part, a transmission assembly and a cam assembly, the driving part drives the cam assembly to rotate through the transmission assembly, the cam assembly drives the lifting assembly to move up or down in a reciprocating mode, and the problems that the durability is not high, accurate positioning cannot be achieved, and the working efficiency is high when the lifting mechanism lifts the lifting platform through an air cylinder are solved. And if the materials need to be lifted to different heights, different air cylinders need to be replaced, and disassembly is complex.

Description

Technical Field

[0001] The utility model belongs to the technical field of cam lifting technology, in particular to a cam lifting device. Background Art

[0002] As a kind of intelligent conveying equipment with its unique advantages and wide range of application scenarios, it provides strong support for the automation and intelligence of various industrial equipment in modern industry, automated warehouses, robotics, packaging machinery, printing machinery, textile machinery and other fields; it even shines in the fields of automobile new energy, etc. Intelligent conveying equipment needs to be equipped with lifting mechanisms to transport materials.

[0003] The lifting mechanism used in the current conveying mechanism generally uses a cylinder to lift the lifting platform. This method has low durability and cannot accurately position. If the material needs to be lifted to a different height, it is necessary to replace the cylinder with a different shape, which is complicated to disassemble.

[0004] Therefore, how to provide a lifting device, improve the durability of the lifting device and accurately lift materials to predetermined heights is a technical problem that technicians in this field urgently need to solve. Utility Model Content

[0005] The main technical problem solved by the utility model is to provide a cam lifting device to solve the problem that the lifting mechanism uses a cylinder to lift the lifting platform, has low durability and cannot accurately position. If the material needs to be lifted to different heights, it is necessary to replace the cylinders of different shapes, which makes disassembly complicated.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is: a cam lifting device, the lifting device comprising:

[0007] A base, a driving mechanism and a lifting assembly, wherein the driving mechanism is arranged on the upper part of the base, and the lifting assembly is arranged on the upper part of the base;

[0008] The driving mechanism includes: a driving member, a transmission assembly and a cam assembly. The driving member drives the cam assembly to rotate through the transmission assembly, and the cam assembly drives the lifting assembly to rise or fall and move back and forth.

[0009] Preferably, the driving member includes a motor and a driving gear arranged at the output end of the motor;

[0010] The transmission assembly includes two transmission parts arranged on the left and right sides of the motor. The transmission parts include a transmission shaft, a bearing seat and a driven gear sleeved on the outer circumference of the transmission shaft. The transmission shaft is connected to the upper part of the base through the bearing seat, and the driving gear drives the driven gear to rotate through a chain.

[0011] Preferably, the cam assembly includes two cam groups, each of which includes a connecting rod and a cam provided at both ends of the transmission shaft, one end of the connecting rod being connected to the driven shaft, and the other end of the connecting rod being connected to the cam.

[0012] Preferably, the lifting assembly includes a lifting frame and a support frame, the support frame is arranged on the upper part of the lifting frame, and the lifting frame is provided with a plurality of guide holes.

[0013] Preferably, a plurality of guide rods are further provided on the upper portion of the base, and the guide rods match the plurality of guide holes.

[0014] Preferably, a mounting bracket is further provided on one side of the base, the mounting bracket is provided with a first sensor and a second sensor, and a blocking piece is provided on one side of the lifting frame.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The two driven gears are driven by the driving gear of the motor to rotate. The driven gears drive the cams at both ends to rotate through the transmission shaft. The cams lift the lifting frame while performing circular motion. This structure has high stability and durability.

[0017] 2. When the lifting frame rises to the highest position, the lifting frame drives the baffle to rise to the highest position. The first sensor in the upper position senses the baffle, and the controller determines that the lifting frame has risen to the highest position. The controller controls other mechanisms to move the materials. This mechanism can accurately position the lifting frame and can lift the lifting frame to different heights by replacing connecting rods of different lengths. It is easy to disassemble, saves work hours, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the base and drive structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the lifting component of the utility model.

[0021] The parts in the accompanying drawings are marked as follows:

[0022] 100, base; 101, guide rod; 102, mounting bracket; 103, first sensor; 104, second sensor;

[0023] 200, driving mechanism; 201, driving member; 2011, motor; 2012, driving gear; 202, transmission assembly; 2021, transmission member; 20211, transmission shaft; 20212, bearing seat; 20213, driven gear; 203, cam assembly; 2031, cam group; 20311, connecting rod; 20312, cam;

[0024] 300, lifting assembly; 301, lifting frame; 302, support frame; 303, guide hole; 304, blocking piece. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0026] Example: Refer to Figure 1-Figure 3 As shown, a cam 20312 lifting device, the lifting device includes:

[0027] A base 100, a driving mechanism 200 and a lifting assembly 300, wherein the driving mechanism 200 is arranged on the upper part of the base 100, and the lifting assembly 300 is arranged on the upper part of the base 100;

[0028] The driving mechanism 200 includes a driving member 201 , a transmission assembly 202 and a cam assembly 203 . The driving member 201 drives the cam assembly 203 to rotate through the transmission assembly 202 , and the cam assembly 203 drives the lifting assembly 300 to move up or down reciprocatingly.

[0029] Further, as shown in FIG2 , the driving member 201 includes a motor 2011 and a driving gear 2012 provided at the output end of the motor 2011 ;

[0030] The transmission assembly 202 includes two transmission parts 2021 arranged on the left and right sides of the motor 2011, and the transmission parts 2021 include a transmission shaft 20211, a bearing seat 20212 and a driven gear 20213 sleeved on the outer periphery of the transmission shaft 20211. The transmission shaft 20211 is connected to the upper part of the base 100 through the bearing seat 20212, and the driving gear 2012 drives the driven gear 20213 to rotate through a chain.

[0031] The cam assembly 203 includes two cam groups 2031 , each of which includes a connecting rod 20311 and a cam 20312 provided at both ends of a transmission shaft 20211 . One end of the connecting rod 20311 is connected to the driven shaft, and the other end of the connecting rod 20311 is connected to the cam 20312 .

[0032] By replacing the connecting rods 20311 of different lengths, the lifting frame 301 can be lifted to different heights, which makes disassembly easy, saves work hours, and improves production efficiency.

[0033] The lifting assembly 300 includes a lifting frame 301 and a support frame 302 . The support frame 302 is disposed on the upper portion of the lifting frame 301 . The lifting frame 301 is provided with a plurality of guide holes 303 .

[0034] The driving gear 2012 of the motor 2011 drives the two driven gears 20213 to rotate, and the driven gears 20213 drive the cams 20312 at both ends to rotate through the transmission shaft 20211. The cams 20312 perform circular motion. When the cams 20312 move upward, they lift the lifting frame 301. This structure has high stability and durability.

[0035] It should be noted that a plurality of guide rods 101 are further provided on the upper portion of the base 100 , and the guide rods 101 match the plurality of guide holes 303 .

[0036] The lifting frame 301 cooperates with the guide rod 101 through the guide hole 303 to guide the lifting frame 301 during its lifting process, thereby ensuring that the lifting frame 301 can be lifted in the vertical direction.

[0037] Finally, it should be noted that Figure 2 As shown, a mounting frame 102 is further provided on one side of the base 100 , and the mounting frame 102 is provided with a first sensor 103 and a second sensor 104 . A blocking piece 304 is provided on one side of the lifting frame 301 .

[0038] When the lifting frame 301 rises to the highest position, the lifting frame 301 drives the baffle 304 to rise to the highest position. The first sensor 103 at the upper position senses the baffle 304. The controller determines that the lifting frame 301 has risen to the highest position. The controller controls other mechanisms to carry materials. The mechanism can accurately position the lifting frame 301.

[0039] When the connecting rod 20311 is shorter, when the lifting frame 301 descends to the lowest position, the lifting frame 301 is above the cam 20312, and the lifting frame 301 does not contact the base 100. By adjusting the position of the second sensor 104, the second sensor senses the baffle 304, and the controller controls the manipulator to move the material to the support frame 302; when the connecting rod 20311 is longer, when the lifting frame 301 descends to the lowest position, the lifting frame 301 is above the base 100, and the lifting frame 301 contacts the base 100. By adjusting the position of the second sensor 104, the second sensor senses the baffle 304, and the controller controls the manipulator to move the material to the support frame 302.

[0040] The working principle of the present invention is as follows:

[0041] The driving gear 2012 of the motor 2011 drives the two driven gears 20213 to rotate, and the driven gears 20213 drive the cams 20312 at both ends to rotate through the transmission shaft 20211. The cams 20312 perform a circular motion. When the cams 20312 move upward, they lift the lifting frame 301 to the highest position. The first sensor 103 in the upper position senses the blocking piece 304, and the controller determines that the lifting frame 301 has risen to the highest position. The controller then controls other mechanisms to transport materials.

[0042] When the cam 20312 moves downward, the lifting frame 301 uses its own gravity to drop to the lowest position. The second sensor 104 in the lower position senses the baffle 304. The controller determines that the lifting frame 301 has dropped to the lowest position, and the controller controls the manipulator to move the material to the support frame 302.

[0043] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the descriptions in the embodiments and shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present utility model.

[0044] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cam lifting device, characterized in that: The lifting device comprises: A base, a driving mechanism and a lifting assembly, wherein the driving mechanism is arranged on the upper part of the base, and the lifting assembly is arranged on the upper part of the base; The driving mechanism includes: a driving member, a transmission assembly and a cam assembly. The driving member drives the cam assembly to rotate through the transmission assembly, and the cam assembly drives the lifting assembly to rise or fall and move back and forth.

2. A cam lifting device according to claim 1, characterized in that: The driving member includes a motor and a driving gear arranged at the output end of the motor; The transmission assembly includes two transmission parts arranged on the left and right sides of the motor. The transmission parts include a transmission shaft, a bearing seat and a driven gear sleeved on the outer circumference of the transmission shaft. The transmission shaft is connected to the upper part of the base through the bearing seat, and the driving gear drives the driven gear to rotate through a chain.

3. The cam lifting device according to claim 2, characterized in that: The cam assembly includes two cam groups, each of which includes a connecting rod and a cam arranged at both ends of the transmission shaft. One end of the connecting rod is connected to the driven shaft, and the other end of the connecting rod is connected to the cam.

4. The cam lifting device according to claim 3, characterized in that: The lifting assembly comprises a lifting frame and a supporting frame. The supporting frame is arranged on the upper part of the lifting frame. The lifting frame is provided with a plurality of guide holes.

5. The cam lifting device according to claim 4, characterized in that: A plurality of guide rods are also provided on the upper part of the base, and the guide rods match the plurality of guide holes.

6. The cam lifting device according to claim 5, characterized in that: A mounting frame is further provided on one side of the base, and a first sensor and a second sensor are provided on the mounting frame. A blocking piece is provided on one side of the lifting frame.

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