Cam type Z-axis lifting platform

Abstract

The utility model relates to the technical field of lifting tables, in particular to a cam type Z-axis lifting table which comprises a lifting table body and a bottom shell arranged below the lifting table body and used for supporting the lifting table body. And the driving mechanism is arranged in the bottom shell and used for driving the lifting table to move up and down. The driving mechanism and the lifting platform are installed in the bottom shell, the cam is arranged on the driving mechanism, the cam is in contact with the follower all the time under the action of gravity, the cam can drive the follower to rotate and move upwards when rotating, and therefore the platform can be driven to move up and down through the installation plate and the right concave frame. Therefore, the whole mechanism is simplified, accumulative errors in mechanism installation are reduced, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting platforms, in particular to a cam type Z-axis lifting platform. Background Art

[0002] A lift is a type of lifting machinery used to transport people or objects vertically. It also refers to equipment that performs vertical transportation in logistics systems such as factories and automatic warehouses.

[0003] Some existing lifting platforms are composed of a displacement platform, a wedge mechanism and a ball screw. The roller screw drives the wedge mechanism to move horizontally, and the wedge mechanism drives the displacement platform to move up and down. Although this method can achieve vertical transportation, there are many mechanism components during production and assembly, which is not only inconvenient to install, but also has a large cumulative error in the production composition, which will also increase the cost. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a cam-type Z-axis lifting platform to solve the technical problem that the existing lifting platform has a complex mechanism and leads to large cumulative errors in processing and assembly.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A cam type Z-axis lifting platform, comprising: a lifting platform, and:

[0007] A bottom shell, the bottom shell is arranged below the lifting platform and is used to support the lifting platform;

[0008] A driving mechanism, the driving mechanism is arranged inside the bottom shell and is used to drive the lifting platform to move up and down;

[0009] The bottom shell is a hollow square box, a mounting hole is provided in the middle of the left side of the bottom shell, a first fixing plate and a second fixing plate are fixedly connected inside the bottom shell, the second fixing plate is located on the right side of the first fixing plate, and the height of the second fixing plate is lower than that of the first fixing plate;

[0010] The lifting platform includes a platform in contact with the upper surface of the bottom shell, and:

[0011] A left concave frame, the left concave frame is fixedly connected to the bottom left end of the bottom of the platform;

[0012] A right concave frame, the right concave frame is fixedly connected to the bottom of the right end of the platform;

[0013] Two connecting plates, the two connecting plates are respectively fixedly connected to the lower surfaces of the front and rear ends of the platform, and the two connecting plates are both located between the left concave frame and the mounting plate and leave a space;

[0014] The mounting plate is fixedly connected to the middle part of the right end of the platform, and the lower surface of the mounting plate contacts the upper surface of the second fixing plate.

[0015] Furthermore, fixing strips are fixedly connected to both the front and rear ends of the first fixing plate and to one side close to the second fixing plate.

[0016] Further, the driving mechanism includes a reducer installed in the mounting hole, the right end of the reducer is bolted to the middle of the left side of the first fixing plate, and:

[0017] A motor, the output end of which is bolted to the left end of the reducer;

[0018] A main shaft, the main shaft is arranged between the second fixing plate and the right end of the bottom shell;

[0019] A coupling, wherein the coupling is disposed between the first fixing plate and the second fixing plate, and two ends of the coupling are respectively connected to the right end of the reducer and the left end of the main shaft;

[0020] A cam is sleeved on the middle part of the main shaft.

[0021] Furthermore, the right end of the main shaft is rotatably fitted in the right end of the bottom shell through a bearing, and the left end of the main shaft is rotatably fitted in the middle of the second fixing plate through a bearing and extends to the left side of the second fixing plate.

[0022] Furthermore, the outer side wall of the left concave frame is clearance-matched with the inner side wall of the bottom shell, and a first arc-shaped groove matching with the reducer is provided in the middle of the bottom end of the left concave frame.

[0023] Furthermore, the outer side wall of the right concave frame is clearance-matched with the inner side wall of the bottom shell, and a second arc-shaped groove matching with the main shaft is provided in the middle of the bottom end of the right concave frame.

[0024] Furthermore, the cam is located between the second fixed plate and the right concave frame, an arc-shaped groove is provided at the top of the cam, and a follower is slidably fitted inside the arc-shaped groove, the cross-section of the follower is circular, and the follower is rotatably fitted between the bottom end of the mounting plate and the right concave frame through a rotating shaft.

[0025] Furthermore, it also includes two guiding mechanisms, which are respectively arranged on the side of the two fixed bars away from each other, and the two guiding mechanisms each include a first slide rail and a second slide rail, the first slide rail is bolted to the fixed bar on the same side, and the second slide rail is bolted to one end of the connecting plate close to the first fixed plate, and the first slide rail on the same side is in sliding fit with the second slide rail on the same side.

[0026] Beneficial effects of the utility model:

[0027] The utility model installs a driving mechanism and a lifting platform in a bottom shell, and a cam is arranged on the driving mechanism. Under the action of gravity, the cam is always in contact with the follower, so that when the cam rotates, the follower can be driven to rotate and move upward, thereby driving the platform to move up and down through the mounting plate and the right concave frame. This not only simplifies the overall mechanism and reduces the cumulative error in the installation of the mechanism, but also reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of the lifting platform embodiment;

[0030] Figure 2 This is a schematic diagram of the main cross-sectional structure of the lifting platform embodiment;

[0031] Figure 3 This is a schematic diagram of a cross-sectional structure of a top view of the lifting platform embodiment;

[0032] Figure 4 This is a schematic diagram of the overall exploded structure of the lifting platform embodiment;

[0033] Figure 5 This is a schematic diagram of the three-dimensional structure of the lifting platform of this lifting platform embodiment.

[0034] Description of the symbols in the figure: 1. Platform; 101. Left concave frame; 102. Right concave frame; 103. Connecting plate; 104. Mounting plate; 105. First arc groove; 106. Second arc groove; 2. Bottom shell; 201. Mounting hole; 202. First fixing plate; 203. Second fixing plate; 204. Fixing bar; 3. Motor; 4. Reducer; 5. Coupling; 6. Spindle; 7. Cam; 8. Follower; 9. First slide rail; 10. Second slide rail. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0037] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0038] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0039] See also Figure 1-5 As shown, a cam-type Z-axis lifting platform includes: a lifting platform, and: a bottom shell 2, which is arranged below the lifting platform for supporting the lifting platform; a driving mechanism, which is arranged inside the bottom shell 2 for driving the lifting platform to move up and down.

[0040] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, the bottom shell 2 is a hollow square box, a mounting hole 201 is provided in the middle of the left side of the bottom shell 2, a first fixing plate 202 and a second fixing plate 203 are fixedly connected inside the bottom shell 2, the second fixing plate 203 is located on the right side of the first fixing plate 202, and the height of the second fixing plate 203 is lower than the height of the first fixing plate 202; the bottom shell 2, the first fixing plate 202 and the second fixing plate 203 can support the lifting platform, and can facilitate the installation and operation of the driving mechanism.

[0041] Specifically, Figure 2 , Figure 3 and Figure 4 As shown, the front and rear ends of the first fixing plate 202 and one side close to the second fixing plate 203 are fixedly connected with fixing strips 204; the fixing strips 204 can facilitate the installation of the subsequent guide mechanism.

[0042] Specifically, Figure 2 , Figure 3 and Figure 4 As shown, the driving mechanism includes a reducer 4 installed in the installation hole 201, the right end of the reducer 4 is bolted to the left middle part of the first fixing plate 202, and: a motor 3, the output end of the motor 3 is bolted to the left end of the reducer 4;

[0043] The main shaft 6 is arranged between the second fixed plate 203 and the right end of the bottom shell 2; the coupling 5 is arranged between the first fixed plate 202 and the second fixed plate 203, and the two ends of the coupling 5 are respectively connected to the right end of the reducer 4 and the left end of the main shaft 6; the cam 7 is sleeved on the middle part of the main shaft 6.

[0044] The power of the motor 3 can be decelerated by the reducer 4 and transmitted to the coupling 5. The coupling 5 can transmit the power to the main shaft 6 to drive the main shaft 6 to rotate. The main shaft 6 can drive the cam 7 thereon to rotate slowly.

[0045] Specifically, Figure 2 and Figure 3 As shown, the right end of the main shaft 6 is rotatably fitted inside the right end of the bottom shell 2 through a bearing, and the left end of the main shaft 6 is rotatably fitted in the middle of the second fixed plate 203 through a bearing and extends to the left side of the second fixed plate 203; the main shaft 6 can rotate smoothly and be firmly installed on the bottom shell 2 and the second fixed plate 203 through the bearing fitting.

[0046] Specifically, Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the lifting platform includes a platform 1 in contact with the upper surface of the bottom shell 2, and: a left concave frame 101, the left concave frame 101 is fixedly connected to the bottom of the left end of the bottom of the platform 1; a right concave frame 102, the right concave frame 102 is fixedly connected to the bottom of the right end of the platform 1; two connecting plates 103, the two connecting plates 103 are respectively fixedly connected to the lower surfaces of the front and rear ends of the platform 1, and the two connecting plates 103 are both located between the left concave frame 101 and the mounting plate 104 and leave a space; a mounting plate 104, the mounting plate 104 is fixedly connected to the middle of the right end of the platform 1, and the lower surface of the mounting plate 104 is in contact with the upper surface of the second fixed plate 203; The cam 7 is located between the second fixed plate 203 and the right concave frame 102. An arc-shaped groove is provided at the top of the cam 7, and a follower 8 is slidably fitted inside the arc-shaped groove. The cross-section of the follower 8 is circular, and the follower 8 is rotated and fitted between the bottom end of the mounting plate 104 and the right concave frame 102 through a rotating shaft. The rotation of the cam 7 and the curve of the cam 7 can drive the follower 8 to move up and down, and the follower 8 can rotate under the connection of the rotating shaft, so that under the connection between the mounting plate 104 and the right concave frame 102, the follower 8 can drive the platform 1 to move up and down, and the platform 1 can drive the left concave frame 101 to move up and down.

[0047] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the outer wall of the left concave frame 101 and the inner wall of the bottom shell 2 are clearance-matched, and a first arc-shaped groove 105 matching with the reducer 4 is provided in the middle of the bottom end of the left concave frame 101; the outer wall of the right concave frame 102 and the inner wall of the bottom shell 2 are clearance-matched, and a second arc-shaped groove 106 matching with the main shaft 6 is provided in the middle of the bottom end of the right concave frame 102; the first arc-shaped groove 105 can form an air avoidance to facilitate the movement of the left concave frame 101, and the second arc-shaped groove 106 can form an air avoidance to facilitate the up and down movement of the right concave frame 102, and the reliability of the movement of the platform 1 can be guaranteed by the left concave frame 101 and the right concave frame 102.

[0048] Specifically, as shown in the figure, it also includes two guide mechanisms, which are respectively arranged on the side of the two fixed bars 204 away from each other, and the two guide mechanisms include a first slide rail 9 and a second slide rail 10. The first slide rail 9 is bolted to the fixed bar 204 on the same side, and the second slide rail 10 is bolted to one end of the connecting plate 103 close to the first fixed plate 202. The first slide rail 9 on the same side and the second slide rail 10 on the same side are in sliding cooperation; the first slide rail 9 and the second slide rail 10 on the same side can make the connecting plate 103 and the first fixed plate 202 move relative to each other to reduce friction, thereby ensuring that the platform 1 moves smoothly and stably.

[0049] In summary, compared with the prior art, the lifting platform has at least the following beneficial effects: the utility model installs a driving mechanism and a lifting platform in the bottom shell 2, and a cam 7 is arranged on the driving mechanism. Under the action of gravity, the cam 7 is always in contact with the follower 8, so that when the cam 7 rotates, it can drive the follower 8 to rotate and move upward, thereby driving the platform 1 to move up and down through the mounting plate 104 and the right concave frame 102. This not only simplifies the overall mechanism and reduces the cumulative error in the installation of the mechanism, but also reduces the cost.

[0050] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A cam type Z-axis lifting platform, characterized in that: Includes: Lifting platform, and: A bottom shell (2), the bottom shell (2) being arranged below the lifting platform and used for supporting the lifting platform; A driving mechanism, the driving mechanism being arranged inside the bottom shell (2) and being used for driving the lifting platform to move up and down; The bottom shell (2) is a hollow square box, a mounting hole (201) is provided in the middle of the left side of the bottom shell (2), a first fixing plate (202) and a second fixing plate (203) are fixedly connected inside the bottom shell (2), the second fixing plate (203) is located on the right side of the first fixing plate (202), and the height of the second fixing plate (203) is lower than the height of the first fixing plate (202); The lifting platform comprises a platform (1) in contact with the upper surface of the bottom shell (2), and: A left concave frame (101), the left concave frame (101) being fixedly connected to the bottom left end of the bottom of the platform (1); A right concave frame (102), wherein the right concave frame (102) is fixedly connected to the bottom of the right end of the platform (1); Two connecting plates (103), the two connecting plates (103) are respectively fixedly connected to the lower surfaces of the front and rear ends of the platform (1), and the two connecting plates (103) are both located between the left concave frame (101) and the mounting plate (104) and leave a space; A mounting plate (104) is fixedly connected to the middle portion of the right end of the platform (1), and the lower surface of the mounting plate (104) is in contact with the upper surface of the second fixing plate (203).

2. The cam type Z-axis lifting platform according to claim 1, characterized in that: The front and rear ends of the first fixing plate (202) and one side close to the second fixing plate (203) are fixedly connected with fixing strips (204).

3. A cam type Z-axis lifting platform according to claim 2, characterized in that: The driving mechanism comprises a reducer (4) installed in the installation hole (201), the right end of the reducer (4) being bolted to the middle of the left side of the first fixing plate (202), and: A motor (3), wherein the output end of the motor (3) is bolted to the left end of the reducer (4); A main shaft (6), the main shaft (6) being arranged between the second fixing plate (203) and the right end of the bottom shell (2); A coupling (5), wherein the coupling (5) is arranged between the first fixed plate (202) and the second fixed plate (203), and two ends of the coupling (5) are respectively connected to the right end of the reducer (4) and the left end of the main shaft (6); A cam (7), wherein the cam (7) is sleeved on the middle part of the main shaft (6).

4. The cam type Z-axis lifting platform according to claim 3, characterized in that: The right end of the main shaft (6) is rotatably fitted inside the right end of the bottom shell (2) through a bearing, and the left end of the main shaft (6) is rotatably fitted in the middle of the second fixed plate (203) through a bearing and extends to the left side of the second fixed plate (203).

5. The cam type Z-axis lifting platform according to claim 4, characterized in that: The outer wall of the left concave frame (101) is clearance-matched with the inner wall of the bottom shell (2), and a first arc-shaped groove (105) matching with the reducer (4) is provided in the middle of the bottom end of the left concave frame (101).

6. The cam type Z-axis lifting platform according to claim 5, characterized in that: The outer wall of the right concave frame (102) is clearance-matched with the inner wall of the bottom shell (2), and a second arc-shaped groove (106) matching with the main shaft (6) is provided in the middle of the bottom end of the right concave frame (102).

7. The cam type Z-axis lifting platform according to claim 6, characterized in that: The cam (7) is located between the second fixing plate (203) and the right concave frame (102). An arc-shaped groove is provided at the top of the cam (7), and a follower (8) is slidably fitted inside the arc-shaped groove. The cross section of the follower (8) is circular. The follower (8) is rotatably fitted between the bottom end of the mounting plate (104) and the right concave frame (102) via a rotating shaft.

8. The cam type Z-axis lifting platform according to claim 7, characterized in that: The invention also comprises two guide mechanisms, which are respectively arranged on the side of the two fixed bars (204) away from each other, and each of the two guide mechanisms comprises a first slide rail (9) and a second slide rail (10), wherein the first slide rail (9) is bolted to the fixed bar (204) on the same side, and the second slide rail (10) is bolted to one end of the connecting plate (103) close to the first fixed plate (202), and the first slide rail (9) and the second slide rail (10) on the same side are in sliding cooperation.

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