Automatic loading device for weight loading

Abstract

The invention discloses an automatic loading device for weight loading, which relates to the technical field of weight auxiliary equipment, including a mounting platform, a hoisting rod is arranged above the center of the mounting platform, an upper loading assembly is sleeved on the upper half of the hoisting rod, the upper loading assembly includes a plurality of upper loading units, a lower loading assembly is sleeved on the lower half of the hoisting rod, the lower loading assembly includes a plurality of lower loading units, the upper loading unit includes: an upper loading platform arranged on the upper half of the hoisting rod; an upper loading weight; and a first pneumatic lifting unit arranged at the bottom of the upper loading weight; the lower loading unit includes: a lower loading platform arranged on the lower half of the hoisting rod; a lower loading weight; and two second pneumatic lifting units respectively arranged at both ends of the lower loading weight. The invention has the advantages of high loading accuracy, good loading effect and high loading efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of weight auxiliary equipment, and in particular to an automatic loading device for weight loading. Background Art

[0002] A weight is a physical measuring tool with a given mass and a specified shape. It is used to calibrate a scale and to measure on a scale. It must be combined with a balance or a scale (the weight used on a scale is often called a weight) to measure the mass of other objects. Therefore, it is a subordinate physical measuring tool. On some high-precision mechanical simulation test benches, weights are needed to measure, test or calculate accurate test data. The existing loading of weights is generally done manually. The test process requires the operator to repeatedly select weights for loading and then obtain data. Human factors have a lot of influence on the test results, and it is easy to have eccentric loading errors, etc., which is time-consuming and labor-intensive, with a low degree of automation. At the same time, the loading range is small. When the mass of the loaded weight is large, manual loading is difficult. Summary of the invention

[0003] In view of the defects in the prior art, the present invention provides an automatic loading device for weight loading, which has a convenient and quick loading process and an accurate and reliable loading result, and can effectively improve the loading efficiency and loading effect.

[0004] An automatic loading device for weight loading, comprising a mounting platform, a hanging rod is arranged above the center of the mounting platform, an upper loading assembly is sleeved on the upper half of the hanging rod, the upper loading assembly comprises a plurality of upper loading units arranged along the center line direction of the hanging rod, a lower loading assembly is sleeved on the lower half of the hanging rod, the lower loading assembly comprises a plurality of lower loading units arranged along the center line direction of the hanging rod, the upper loading unit comprises: an upper loading platform arranged on the upper half of the hanging rod; an upper loading weight sleeved on the hanging rod and located above the upper loading platform; and a first upper loading weight arranged at the bottom of the upper loading weight. A pneumatic lifting unit; wherein the first pneumatic lifting unit is used to place the upper loading weight on the upper loading platform and lift the upper loading weight from the upper loading platform, and the lower loading unit includes: a lower loading platform arranged at the lower half of the lifting rod; a lower loading weight mounted on the lifting rod and located above the lower loading platform; and two second pneumatic lifting units respectively arranged at both ends of the lower loading weight; wherein the two second pneumatic lifting units are used to place the lower loading weight on the lower loading platform and lift the lower loading weight from the lower loading platform.

[0005] Preferably, an upper mounting frame and two lower mounting frames are provided on the mounting platform, the first pneumatic lifting unit is provided inside the upper mounting frame, and the two second pneumatic lifting units are provided inside the lower mounting frames. The first pneumatic lifting units are provided together through the upper mounting frame to improve the compactness of the structure, and similarly, the second pneumatic lifting units are provided together through the two lower mounting frames to further improve the compactness of the structure.

[0006] Preferably, the first pneumatic lifting unit comprises: an upper slide plate vertically arranged inside the upper mounting frame; an upper lifting part arranged on the upper slide plate and capable of sliding on the upper slide plate; and an upper power unit arranged at the bottom of the upper lifting part; wherein the upper lifting part can contact the bottom of the upper loading weight and lift the upper loading weight, and the upper power unit can drive the upper lifting part to slide on the upper slide plate. The upper lifting part can slide up and down on the slide rail on the upper slide plate, and due to the action of gravity, the upper lifting part will always contact the upper power unit.

[0007] Preferably, the second pneumatic lifting unit comprises: a lower slide rail plate vertically arranged inside the lower mounting frame; a lower lifting part arranged on the lower slide rail plate and capable of sliding on the lower slide rail plate; and a lower power unit arranged at the bottom of the lower lifting part; wherein the lower lifting part can contact the bottom of the lower loading weight and lift the lower loading weight, and the lower power unit can drive the lower lifting part to slide on the lower slide rail plate. Similarly, the lower lifting part can slide up and down on the slide rail on the lower slide rail plate, and due to the effect of gravity, the lower lifting part will always contact the lower power unit.

[0008] Preferably, the upper lifting part and the lower lifting part have the same composition structure, both including a holding part, a supporting body arranged on the top of the holding part and a ramp arranged at the bottom of the supporting body; wherein the holding part of the upper lifting part is arranged on the upper slide rail plate and can slide up and down, the supporting body of the upper lifting part can contact the bottom of the upper loading weight and lift the upper loading weight, and the upper power unit contacts and can push the ramp of the upper lifting part to move; the holding part of the lower lifting part is arranged on the lower slide rail plate and can slide up and down, the supporting body of the lower lifting part is arranged on the end of the lower loading weight, and the lower power unit contacts and can push the ramp of the lower lifting part to move. By keeping the bottom surface of the inclined platform in contact with the upper power unit at all times, when the upper power unit moves, the irregular surface of the inclined platform drives the entire upper lifting part to slide along the upper track plate, thereby realizing the lifting operation of the upper loaded weight; similarly, by keeping the bottom surface of the inclined platform in contact with the lower power unit at all times, when the lower power unit moves, the irregular surface of the inclined platform drives the entire lower lifting part to slide along the lower track plate, thereby realizing the lifting operation of the lower loaded weight.

[0009] Preferably, the upper power unit and the lower power unit have the same composition structure, both including a cylinder, a push rod connected to the cylinder, and a ball bearing arranged at the end of the push rod; wherein the ball bearing contacts the inclined bottom surface of the ramp; when the push rod of the upper power unit pushes out the ball bearing, the ball bearing pushes the ramp to rise, the ramp drives the upper lifting part to slide upward, the upper lifting part lifts the upper loading weight, and the upper loading weight is separated from the upper loading platform; when the push rod of the lower power unit pushes out the ball bearing, the ball bearing pushes the ramp to rise, the ramp drives the lower lifting part to slide upward, the two lower lifting parts lift the lower loading weight, and the upper loading weight is separated from the lower loading platform. The cylinder pushes the push rod to push out and retract, and when the push rod is pushed out, the ball bearing follows to push out, and since the surface of the ball bearing contacts the bottom surface of the ramp, the ramp is driven to move, and under the limiting action of the upper track plate or the lower track plate, the holding part moves up and down to realize the lifting and lowering of the entire support body.

[0010] Preferably, the masses of the upper loading weights of different upper loading units are different, the masses of the lower loading weights of different lower loading units are different, and the masses of the upper loading weights and the lower loading weights are also different. By using upper loading weights and lower loading weights of different masses, more kinds of mass loading can be achieved.

[0011] Preferably, a centering structure is provided between the upper loading platform and the upper loading weight, and between the lower loading platform and the lower loading weight. The centering structure can improve the centering performance between the upper loading weight and the lower loading weight, thereby improving the loading accuracy.

[0012] Preferably, the centering structure includes an upper chamfer arranged around the center line of the hoisting rod and a lower chamfer capable of contacting the upper chamfer surface; wherein the upper chamfer is arranged at the center of the upper loading weight and the center of the lower loading weight, and the lower chamfer is arranged on the upper loading platform and the lower loading platform. Under the action of gravity, the upper chamfer and the lower chamfer can automatically align and maintain stable contact, thereby avoiding the occurrence of eccentric loading.

[0013] Preferably, a buffer structure is provided at the bottom of the mounting platform, which can effectively improve the buffering and vibration reduction performance of the entire loading device.

[0014] The beneficial effects of the present invention are embodied in:

[0015] In the present invention, the entire lifting rod is hoisted on the workpiece that needs to be loaded. Before the loading operation, all the upper loading weights and the lower loading weights do not contact the upper loading platform and the lower loading platform, and the entire lifting rod only has the gravity generated by its own mass. When the loading operation is required, in the upper loading assembly: the upper loading unit changes the state of the first pneumatic lifting unit to allow the bottom surface of the upper loading weight to contact the top surface of the upper loading platform, and until the first pneumatic lifting unit is completely separated from the upper loading weight, so that the upper loading weight is completely placed on the upper loading platform, thereby realizing the loading of the entire lifting rod by the upper loading assembly, and superimposing the gravity of the lifting rod and the loaded upper loading weight. Multiple upper loading weights can also ensure that the lifting rod generates multiple gravity after loading. The entire upper loading assembly is easy to operate during the loading operation, and the level of automation is high. At the same time, because the upper loading weight is set on the entire lifting rod, not only the loading accuracy is high, but also the loading path is short, which is effective. Improve loading efficiency; similarly, in the lower loading assembly, the lower loading unit changes the state of the two second pneumatic lifting units to allow the bottom surface of the lower loading weight to contact the top surface of the lower loading platform, and until the lower loading weight is completely placed on the lower loading platform, thereby realizing the loading of the entire lifting rod by the lower loading assembly, allowing the gravity of the lifting rod and the loaded lower loading weight to be superimposed, and multiple lower loading weights can also ensure that the lifting rod generates multiple gravity after loading. Furthermore, the loading operation of the entire lower loading assembly is easy to operate, and the level of automation is further improved. At the same time, since the lower loading weight is mounted on the entire lifting rod, not only the loading accuracy is high, but also the loading path is short, which further improves the loading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0017] Figure 1 It is a structural stereogram of the present invention;

[0018] Figure 2 It is a structural front view of the present invention;

[0019] Figure 3 It is a top view of the structure of the present invention;

[0020] Figure 4 For the present invention Figure 3 Structural cross-sectional view in the AA direction;

[0021] Figure 5 For the present invention Figure 4 A magnified view of the structure at D in the middle;

[0022] Figure 6 For the present invention Figure 3 Structural cross-sectional view in the middle BB direction;

[0023] Figure 7 For the present invention Figure 6 A magnified view of the structure at E in the middle;

[0024] Figure 8 For the present invention Figure 3 Structural cross-section view in the CC direction;

[0025] Fig. 9 For the present invention Figure 8 The structural cross-section view at F in the middle;

[0026] Fig.10 It is a structural stereogram of a part of the structure of the hanging rod of the present invention.

[0027] Reference numerals:

[0028] 1-mounting table, 11-upper mounting frame, 12-lower mounting frame, 2-lifting rod, 3-upper loading assembly, 31-upper loading unit, 311-upper loading platform, 312-upper loading weight, 313-first pneumatic lifting unit, 3131-upper slide plate, 3132-upper lifting part, 3133-upper power unit, 4-lower loading assembly, 41-lower loading unit, 411-lower loading platform, 412-lower loading weight, 413-second pneumatic lifting unit, 4131-lower slide plate, 4132-lower lifting part, 4133-lower power unit, 5-holding part, 51-support body, 52-inclined table, 6-cylinder, 61-push rod, 62-ball bearing, 7-centering structure, 71-upper chamfer, 72-lower chamfer, 8-buffer structure. DETAILED DESCRIPTION

[0029] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0032] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention.

[0033] like Figures 1 to 10 As shown, an automatic loading device for weight loading includes a mounting platform 1, a hoisting rod 2 is arranged above the center of the mounting platform 1, an upper loading assembly 3 is sleeved on the upper half of the hoisting rod 2, the upper loading assembly 3 includes a plurality of upper loading units 31 arranged along the center line direction of the hoisting rod 2, a lower loading assembly 4 is sleeved on the lower half of the hoisting rod 2, the lower loading assembly 4 includes a plurality of lower loading units 41 arranged along the center line direction of the hoisting rod 2, and the upper loading unit 31 includes: an upper loading platform 311 arranged on the upper half of the hoisting rod 2; an upper loading weight 312 sleeved on the hoisting rod 2 and located above the upper loading platform 311; and a first pneumatic lifting unit 312 arranged at the bottom of the upper loading weight 312. Element 313; wherein, the first pneumatic lifting unit 313 is used to place the upper loading weight 312 on the upper loading platform 311 and lift the upper loading weight 312 from the upper loading platform 311, and the lower loading unit 41 includes: a lower loading platform 411 arranged in the lower half of the lifting rod 2; a lower loading weight 412 mounted on the lifting rod 2 and located above the lower loading platform 411; and two second pneumatic lifting units 413 respectively arranged at both ends of the lower loading weight 412; wherein, the two second pneumatic lifting units 413 are used to place the lower loading weight 412 on the lower loading platform 411 and lift the lower loading weight 412 from the lower loading platform 411.

[0034] In this embodiment, it should be noted that the entire lifting rod 2 is lifted on the workpiece that needs to be loaded. Before the loading operation, all the upper loading weights 312 and the lower loading weights 412 do not contact the upper loading platform 311 and the lower loading platform 411, and the entire lifting rod 2 only has the gravity generated by its own mass. When loading operation is required, in the upper loading component 3: the upper loading unit 31 changes the state of the first pneumatic lifting unit 313 to allow the bottom surface of the upper loading weight 312 to contact the top surface of the upper loading platform 311, and until the first pneumatic lifting unit 313 is completely separated from the upper loading weight 312, the upper loading weight 312 is completely placed on the upper loading platform 311, so as to realize the loading of the entire lifting rod 2 by the upper loading component 3, so that the gravity of the lifting rod 2 and the loaded upper loading weight 312 is superimposed, and multiple upper loading weights 312 can also ensure that the lifting rod 2 generates multiple gravity after loading. The loading operation of the entire upper loading component 3 is easy to operate and has a high level of automation. At the same time, since the upper loading weight 312 is mounted on the entire lifting rod 2, not only the loading accuracy is high, but also the loading path is short, which effectively improves the loading efficiency; similarly, in the lower loading component 4 In the process, the lower loading unit 41 changes the state of the two second pneumatic lifting units 413 to allow the bottom surface of the lower loading weight 412 to contact the top surface of the lower loading platform 411, and until the lower loading weight 412 is completely placed on the lower loading platform 411, so as to realize the loading of the entire lifting rod 2 by the lower loading component 4, and let the lifting rod 2 and the loaded lower loading weight 412 have superimposed gravity. Multiple lower loading weights 412 can also ensure that the lifting rod 2 generates multiple gravity after loading. Furthermore, the loading operation of the entire lower loading component 4 is easy to operate, and the level of automation is further improved. At the same time, since the lower loading weight 412 is mounted on the entire lifting rod 2, not only the loading accuracy is high, but also the loading path is short, which further improves the loading efficiency. In summary, all upper loading weights 312 and lower loading weights 412 can realize independent loading and unloading, and are individually controlled, such as Figure 1 Example of medium weights: Figure 1 The specifications of the upper loading weight 312 and the lower loading weight 412 from top to bottom are 1kg, 2kg*2, 5kg, 10kg, 20kg*2, 50kg, 100kg, 200kg*2, 500kg. On this device, any combination of integer kg mass values ​​in the range of 1kg to 1110kg can be achieved.

[0035] Specifically, an upper mounting frame 11 and two lower mounting frames 12 are disposed on the mounting platform 1 , the first pneumatic lifting unit 313 is disposed inside the upper mounting frame 11 , and the two second pneumatic lifting units 413 are disposed inside the lower mounting frames 12 .

[0036] In this embodiment, it should be noted that the first pneumatic lifting unit 313 is arranged together through the upper mounting frame 11 to improve the compactness of the structure. Similarly, the second pneumatic lifting unit 413 is arranged together through the two lower mounting frames 12 to further improve the compactness of the structure.

[0037] Specifically, the first pneumatic lifting unit 313 includes: an upper slide plate 3131 vertically arranged inside the upper mounting frame 11; an upper lifting portion 3132 arranged on the upper slide plate 3131 and capable of sliding on the upper slide plate 3131; and an upper power unit 3133 arranged at the bottom of the upper lifting portion 3132; wherein the upper lifting portion 3132 can contact the bottom of the upper loading weight 312 and lift the upper loading weight 312, and the upper power unit 3133 can drive the upper lifting portion 3132 to slide on the upper slide plate 3131.

[0038] In this embodiment, it should be noted that the upper lifting portion 3132 can slide up and down on the slide rail on the upper slide rail plate 3131 , and due to the effect of gravity, the upper lifting portion 3132 will always contact the upper power unit 3133 .

[0039] Specifically, the second pneumatic lifting unit 413 includes: a lower sliding rail plate 4131 vertically arranged inside the lower mounting frame 12; a lower lifting portion 4132 arranged on the lower sliding rail plate 4131 and capable of sliding on the lower sliding rail plate 4131; and a lower power unit 4133 arranged at the bottom of the lower lifting portion 4132; wherein the lower lifting portion 4132 can contact the bottom of the lower loading weight 412 and lift the lower loading weight 412, and the lower power unit 4133 can drive the lower lifting portion 4132 to slide on the lower sliding rail plate 4131.

[0040] In this embodiment, it should be noted that, similarly, the lower lifting portion 4132 can slide up and down on the slide rail on the lower slide rail plate 4131 , and due to the effect of gravity, the lower lifting portion 4132 will always contact the lower power unit 4133 .

[0041] Specifically, the upper lifting part 3132 and the lower lifting part 4132 have the same composition structure, both including a holding part 5, a support body 51 arranged on the top of the holding part 5, and an inclined platform 52 arranged at the bottom of the support body 51; wherein, the holding part 5 of the upper lifting part 3132 is arranged on the upper slide rail plate 3131 and can slide up and down, the support body 51 of the upper lifting part 3132 can contact the bottom of the upper loading weight 312 and lift the upper loading weight 312, and the upper power unit 3133 contacts and can push the inclined platform 52 of the upper lifting part 3132 to move; the holding part 5 of the lower lifting part 4132 is arranged on the lower slide rail plate 4131 and can slide up and down, the support body 51 of the lower lifting part 4132 is arranged at the end of the lower loading weight 412, and the lower power unit 4133 contacts and can push the inclined platform 52 of the lower lifting part 4132 to move.

[0042] In the present embodiment, it should be noted that, through the constant contact between the bottom surface of the inclined platform 52 and the upper power unit 3133, when the upper power unit 3133 moves, the irregular surface of the inclined platform 52 drives the entire upper lifting part 3132 to slide along the upper track plate, thereby realizing the lifting operation of the upper loading weight 312; similarly, through the constant contact between the bottom surface of the inclined platform 52 and the lower power unit 4133, when the lower power unit 4133 moves, the irregular surface of the inclined platform 52 drives the entire lower lifting part 4132 to slide along the lower track plate, thereby realizing the lifting operation of the lower loading weight 412.

[0043] Specifically, the upper power unit 3133 and the lower power unit 4133 have the same composition structure, both including a cylinder 6, a push rod 61 connected to the cylinder 6, and a ball bearing 62 arranged at the end of the push rod 61; wherein the ball bearing 62 contacts the inclined bottom surface of the ramp 52; when the push rod 61 of the upper power unit 3133 pushes out the ball bearing 62, the ball bearing 62 pushes the ramp 52 to rise, and the ramp 52 drives the upper lifting part 3132 to slide upward, the upper lifting part 3132 lifts the upper loading weight 312, and the upper loading weight 312 separates from the upper loading platform 311; when the push rod 61 of the lower power unit 4133 pushes out the ball bearing 62, the ball bearing 62 pushes the ramp 52 to rise, and the ramp 52 drives the lower lifting part 4132 to slide upward, the two lower lifting parts 4132 lift the lower loading weight 412, and the upper loading weight 312 separates from the lower loading platform 411.

[0044] In this embodiment, it should be noted that the cylinder 6 pushes the push rod 61 out and retracts. When the push rod 61 is pushed out, the ball bearing 62 is pushed out with it. Since the surface of the ball bearing 62 contacts the bottom surface of the ramp 52, it drives the ramp 52 to move. Under the limiting action of the upper track plate or the lower track plate, the retaining part 5 moves up and down, thereby realizing the lifting and lowering of the entire support body 51.

[0045] Specifically, the masses of the upper loading weights 312 of different upper loading units 31 are different, the masses of the lower loading weights 412 of different lower loading units 41 are different, and the masses of the upper loading weights 312 and the lower loading weights 412 are also different.

[0046] In this embodiment, it should be noted that more types of mass loading can be achieved by using the upper loading weight 312 and the lower loading weight 412 of different masses.

[0047] Specifically, a centering structure 7 is provided between the upper loading platform 311 and the upper loading weight 312 and between the lower loading platform 411 and the lower loading weight 412 .

[0048] In this embodiment, it should be noted that the centering structure 7 can improve the centering performance between the upper loading weight 312 and the lower loading weight 412, thereby improving the loading accuracy.

[0049] Specifically, the centering structure 7 includes an upper chamfer 71 arranged around the center line of the lifting rod 2 and a lower chamfer 72 capable of contacting the surface of the upper chamfer 71; wherein the upper chamfer 71 is arranged in the center of the upper loading weight 312 and the center of the lower loading weight 412, and the lower chamfer 72 is arranged on the upper loading platform 311 and the lower loading platform 411.

[0050] In the present embodiment, it should be noted that, under the action of gravity, the upper chamfer 71 and the lower chamfer 72 can automatically align and maintain stable contact, so as to avoid the occurrence of unbalanced loading.

[0051] Specifically, a buffer structure 8 is provided at the bottom of the mounting platform 1 .

[0052] In this embodiment, it should be noted that the buffer structure 8 can effectively improve the buffering and vibration reduction performance of the entire loading device.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An automatic loading device for weight loading, characterized in that: The utility model comprises a mounting platform, a hanging rod is arranged at the center of the mounting platform, an upper loading assembly is sleeved on the upper half of the hanging rod, and the upper loading assembly comprises a plurality of upper loading units arranged along the center line direction of the hanging rod, and a lower loading assembly is sleeved on the lower half of the hanging rod, and the lower loading assembly comprises a plurality of lower loading units arranged along the center line direction of the hanging rod, and the upper loading unit comprises: An upper loading platform disposed on the upper half of the hoisting rod; an upper loading weight mounted on the hoisting rod and located above the upper loading platform; and A first pneumatic lifting unit is arranged at the bottom of the upper loading weight; wherein, The first pneumatic lifting unit is used to place the upper loading weight on the upper loading platform and lift the upper loading weight from the upper loading platform, and the lower loading unit includes: A lower loading platform disposed at the lower half of the hoisting rod; a lower loading weight mounted on the lifting rod and located above the lower loading platform; and Two second pneumatic lifting units are respectively arranged at both ends of the lower loading weight; wherein, The two second pneumatic lifting units are used to place the lower loading weight on the lower loading platform and lift the lower loading weight from the lower loading platform; An upper mounting frame and two lower mounting frames are arranged on the mounting platform, the first pneumatic lifting unit is arranged inside the upper mounting frame, and the two second pneumatic lifting units are arranged inside the lower mounting frames; The first pneumatic lifting unit comprises: An upper slide rail plate vertically arranged inside the upper mounting frame; An upper lifting portion disposed on the upper slide rail plate and capable of sliding on the upper slide rail plate; and An upper power unit is arranged at the bottom of the upper lifting part; wherein, The upper lifting portion can contact the bottom of the upper loading weight and lift the upper loading weight, and the upper power unit can drive the upper lifting portion to slide on the upper slide rail plate; The second pneumatic lifting unit comprises: A lower slide rail plate vertically arranged inside the lower mounting frame; A lower lifting portion disposed on the lower slide rail and capable of sliding on the lower slide rail; and A lower power unit is arranged at the bottom of the lower lifting part; wherein, The lower lifting portion can contact the bottom of the lower loading weight and lift the lower loading weight, and the lower power unit can drive the lower lifting portion to slide on the lower slide rail plate; A centering structure is provided between the upper loading platform and the upper loading weight, and between the lower loading platform and the lower loading weight.

2. The automatic loading device for weight loading according to claim 1, characterized in that: The upper lifting part and the lower lifting part have the same structure, both comprising a holding part, a support body arranged at the top of the holding part, and an inclined platform arranged at the bottom of the support body; wherein, The holding portion of the upper lifting portion is arranged on the upper slide rail plate and can slide up and down, the support body of the upper lifting portion can contact the bottom of the upper loading weight and lift the upper loading weight, and the upper power unit contacts and can push the inclined platform of the upper lifting portion to move; The retaining portion of the lower lifting portion is arranged on the lower sliding rail plate and can slide up and down, the supporting body of the lower lifting portion is arranged on the end of the lower loading weight, and the lower power unit contacts and can push the inclined platform of the lower lifting portion to move.

3. The automatic loading device for weight loading according to claim 2, characterized in that: The upper power unit and the lower power unit have the same structure, both of which include a cylinder, a push rod connected to the cylinder, and a ball bearing arranged at the end of the push rod; wherein, The ball bearing is in contact with the inclined bottom surface of the ramp; When the push rod of the upper power unit pushes out the ball bearing, the ball bearing pushes the inclined platform to rise, the inclined platform drives the upper lifting part to slide upward, the upper lifting part lifts the upper loading weight, and the upper loading weight is separated from the upper loading platform; When the push rod of the lower power unit pushes out the ball bearing, the ball bearing pushes the inclined platform to rise, and the inclined platform drives the lower lifting part to slide upward, and the two lower lifting parts lift the lower loading weight, and the upper loading weight is separated from the lower loading platform.

4. The automatic loading device for weight loading according to claim 1, characterized in that: The masses of the upper loading weights of different upper loading units are different, the masses of the lower loading weights of different lower loading units are different, and the masses of the upper loading weights and the lower loading weights are also different.

5. The automatic loading device for weight loading according to claim 1, characterized in that: The centering structure includes an upper chamfer arranged around the center line of the lifting rod and a lower chamfer capable of contacting the upper chamfer surface; wherein the upper chamfer is arranged at the center of the upper loading weight and the center of the lower loading weight, and the lower chamfer is arranged on the upper loading platform and the lower loading platform.

6. The automatic loading device for weight loading according to any one of claims 1 to 5, characterized in that: A buffer structure is arranged at the bottom of the mounting platform.

Images