Weighing mechanism

Abstract

The utility model relates to the technical field of weighing equipment, in particular to a weighing mechanism, which comprises a weighing module and a tray, a measured object is placed on the tray, and the weighing module weighs the measured object to obtain the weight of the measured object; a jacking driving module used for driving the tray to vertically ascend and descend is further arranged, the tray moves upwards to be close to a tested object on a transfer manipulator or a crane, and the distance is shortened so that the transfer difficulty can be reduced. After a measured object is placed on the tray, the jacking driving module drives the tray to descend stably, and the situation that the weighing module is damaged due to the fact that the falling speed is too high is avoided; in addition, a clamping module and a guide piece are further arranged, when the jacking driving module works, the clamping module drives the guide piece to retract inwards, the guide rod is guided, vertical lifting of the tray is guaranteed, and the working stability in the weighing process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing equipment, in particular to a weighing mechanism. Background Art

[0002] Weighing equipment is a weighing instrument for large objects used in industry or trade. During the production process of automated equipment, it is necessary to transfer the object to be measured onto a tray for weighing; when the mass of the object to be measured is large, it is easy to directly damage the weighing equipment; in addition, the distance between the tray and the adjacent processing stations is too large, making it difficult to transfer. Content of the Utility Model

[0003] Based on this, the purpose of the utility model is to provide a weighing mechanism.

[0004] The utility model adopts the following technical solutions:

[0005] A weighing mechanism includes a substrate, a weighing module arranged at the upper end of the substrate, a tray arranged on the weighing module, and a lifting drive module fixed at the upper end of the substrate; the upper end of the lifting drive module is connected to the tray, and the lifting drive module drives the tray to perform vertical lifting; a guide rod is arranged at the lower end of the tray, the lower end of the guide rod penetrates through the substrate, a clamping module is fixedly arranged on the upper end surface of the substrate, two symmetrically distributed guide pieces are arranged at the transmission end of the clamping module, the guide pieces are arranged outside the guide rod, and the clamping module drives the guide pieces to approach each other to guide the guide rod.

[0006] Preferably, two lifting drive modules are provided, and the lifting drive modules are symmetrically distributed on the lower end surface of the tray.

[0007] Preferably, four guide rods and clamping modules are provided, and the upper ends of the guide rods are connected to the corners of the lower end surface of the tray.

[0008] Preferably, the clamping module includes a pneumatic gripper and a clamping arm fixed at the moving end of the pneumatic gripper; the guide piece is assembled on the opposite side of the clamping arm.

[0009] Preferably, the guide piece is specifically a semi-circular bushing.

[0010] Preferably, a lifting drive component is arranged at the lower end of the weighing module, and the lifting drive component drives the weighing module to perform vertical lifting.

[0011] Preferably, the lifting drive assembly includes a lifting plate fixed to the lower end of the weighing module and a lifting cylinder provided on the substrate; the transmission end of the lifting cylinder is connected to the lower end of the lifting plate; the lifting cylinder drives the lifting plate to lift and lower, so as to drive the weighing module to lift and lower.

[0012] Preferably, guide posts are provided at the corners of the lower end surface of the lifting plate, and the lower ends of the guide posts penetrate through the substrate.

[0013] Preferably, a support frame is provided at the lower end of the jacking drive module, and the support frame is fixed to the upper end surface of the substrate.

[0014] Preferably, a plurality of positioning posts are provided on the upper end surface of the tray.

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

[0016] The weighing mechanism involved in the present utility model includes a weighing module and a tray. The object to be measured is placed on the tray, and the weighing module weighs it to obtain the weight of the object to be measured. A jacking drive module for driving the tray to vertically lift and lower is also provided. The tray moves up to approach the object to be measured on the transfer manipulator or crane, shortening the distance to reduce the transfer difficulty. After the object to be measured is placed on the tray, the jacking drive module drives the tray to descend smoothly, avoiding too fast a falling speed and damaging the weighing module. In addition, a clamping module and a guide member are also provided. During the operation of the jacking drive module, the clamping module drives the guide member to retract inward, guiding the guide rod and ensuring the vertical lifting and lowering of the tray, improving the working stability of the weighing process. Description of the Drawings

[0017] Figure 1 is the first overall structural schematic diagram of the weighing mechanism of the present utility model;

[0018] Figure 2 is the second overall structural schematic diagram of the weighing mechanism of the present utility model;

[0019] Figure 3 is the third overall structural schematic diagram of the weighing mechanism of the present utility model;

[0020] Figure 4 is Figure 3 the partial structural schematic diagram of part A in

[0021] Figure 5 is the structural explosion schematic diagram of the weighing mechanism of the present utility model;

[0022] Reference numerals in the drawings:

[0023] 10 - Substrate;

[0024] 20 - weighing module; 21 - reading part; 22 - bearing part;

[0025] 30 - tray; 31 - positioning post;

[0026] 40 - lifting drive module;

[0027] 50 - guide rod;

[0028] 60 - clamping module; 61 - pneumatic gripper; 62 - clamping arm;

[0029] 70 - guide;

[0030] 80 - lifting drive assembly; 81 - lifting plate; 82 - lifting cylinder; 83 - guide post. Detailed implementation manner

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical direction", "up", "down", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or a connection through an intermediate medium. It can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Such as Figures 1 to 5As shown in the figure, a weighing mechanism according to an embodiment of the present invention includes a substrate 10, a weighing module 20 provided at the upper end of the substrate 10, a tray 30 provided on the weighing module 20, and a lifting drive module 40 fixed to the upper end of the substrate 10. The weighing module 20 includes a reading part 21 and a bearing part 22. The object to be measured is placed on the tray 30, the tray 30 abuts against the bearing part 22, and the reading part 21 can sense and display the weight of the object to be measured. The upper end of the lifting drive module 40 is connected to the tray 30, and the lifting drive module 40 drives the tray 30 to move vertically up and down. A guide rod 50 is provided at the lower end of the tray 30, the lower end of the guide rod 50 penetrates the substrate 10, a clamping module 60 is fixedly provided on the upper end surface of the substrate 10, two symmetrically distributed guide members 70 are provided at the transmission end of the clamping module 60, the guide members 70 are provided outside the guide rod 50, and the clamping module 60 drives the guide members 70 to approach each other to guide the guide rod 50; as Figure 4 shown, after the guide members 70 approach each other, a gap is left between the inner wall of the guide member 70 and the outer wall of the guide rod 50. The guide member 70 guides the guide rod 50, but does not affect the lifting of the tray 30.

[0035] During the actual weighing process, the following steps are included:

[0036] 1. The clamping module 60 drives the guide members 70 to approach each other, and the guide members 70 approach to ensure the vertical lifting of the tray 30;

[0037] 2. The lifting drive module 40 drives the tray 30 to move upward, and the object to be measured is placed on the upper end of the tray 30;

[0038] 3. The lifting drive module 40 drives the tray 30 to move downward until the tray 30 contacts the weighing module 20, that is, when the weighing module 20 has a reading, the lifting drive module 40 stops working;

[0039] 4. The clamping module 60 drives the guide members 70 to move away from each other;

[0040] 5. The weighing module 20 weighs the object to be measured.

[0041] Weighing is performed through the above steps. During the lifting process of the tray 30, the clamping module 60 drives the guide members 70 to approach to limit the sway of the guide rod 50 in the horizontal direction, thereby improving the lifting stability of the tray 30. At the same time, the tray 30 moves upward close to the object to be measured, reducing the handling difficulty of the object to be measured.

[0042] Specifically, there are two jacking drive modules 40, and the two jacking drive modules 40 are symmetrically distributed on the lower end surface of the tray 30. The two jacking drive modules 40 synchronously drive the tray 30 to vertically lift and lower. The jacking drive module 40 is specifically a cylinder. The use of two jacking drive modules 40 can drive heavier objects to lift and lower, while ensuring the force balance of the tray 30, and the lifting and lowering are more stable. Further, a support frame is provided at the lower end of the jacking drive module 40, and the support frame is fixed to the upper end surface of the base plate 10. The support frame is used to support the jacking drive module 40, and further increase the lifting height of the tray 30.

[0043] Specifically, four guide rods 50 and four clamping modules 60 are provided, and the upper ends of the guide rods 50 are connected to the corners of the lower end surface of the tray 30 .

[0044] Specifically, the clamping module 60 includes a pneumatic clamp 61 and a clamping arm 62 fixed to the moving end of the pneumatic clamp 61; the guide member 70 is assembled on the opposite side of the clamping arm 62; further, the guide member 70 is a semicircular arc-shaped bushing; the pneumatic clamp 61 drives the clamping arm 62 to clamp or release, thereby driving the two bushings to move closer to each other or away from each other. When the two bushings move closer to each other, the two bushings are assembled to form a ring shape, and a gap is left between the outer wall of the guide rod 50 and the inner wall of the bushing. During the lifting and lowering process of the tray 30, the guide rod 50 always moves inside the bushing, thereby reducing the shaking on the horizontal plane and improving the stability of the lifting and lowering of the tray 30.

[0045] Specifically, a lifting drive assembly 80 is provided at the lower end of the weighing module 20, and the lifting drive assembly 80 drives the weighing module 20 to vertically lift and lower, so as to adjust the distance between the weighing module 20 and the tray 30 to adapt to weighing modules 20 of different heights.

[0046] Furthermore, the lifting drive assembly 80 includes a lifting plate 81 fixed to the lower end of the weighing module 20, and a lifting cylinder 82 arranged on the base plate 10; the transmission end of the lifting cylinder 82 is connected to the lower end of the lifting plate 81; the lifting cylinder 82 drives the lifting plate 81 to rise and fall, thereby driving the weighing module 20 to rise and fall, thereby achieving the purpose of adjusting the height of the weighing module 20.

[0047] Furthermore, guide posts 83 are provided at the corners of the lower end surface of the lifting plate 81 , and the lower ends of the guide posts 83 penetrate the base plate 10 . The guide posts 83 cooperate with the holes of the base plate 10 to ensure that the lifting plate 81 can be lifted and lowered vertically.

[0048] Specifically, a plurality of positioning posts 31 are provided on the upper end surface of the tray 30 , and corresponding positioning holes are provided on the measured object. The positioning posts 31 cooperate with the positioning holes to fix the measured object to the tray 30 to prevent shaking from affecting the weighing quality.

[0049] Compared with the prior art, the weighing mechanism involved in the utility model includes a weighing module 20 and a tray 30. The object to be measured is placed on the tray 30, and the weighing module 20 weighs it to obtain the weight of the object to be measured; a jacking drive module 40 is also provided for driving the tray 30 to vertically rise and fall. The tray 30 moves up to get close to the object to be measured on the transfer robot or crane, shortening the distance to reduce the difficulty of transportation; after the object to be measured is placed on the tray 30, the jacking drive module 40 drives the tray 30 to descend smoothly to avoid the falling speed being too fast and causing damage to the weighing module 20; in addition, a clamping module 60 and a guide member 70 are also provided. During the operation of the jacking drive module 40, the clamping module 60 drives the guide member 70 to retract, guiding the guide rod 50, ensuring the vertical lifting of the tray 30 and improving the working stability of the weighing process.

[0050] The above only expresses the preferred technical solution of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. A weighing mechanism, characterized in that, It includes a substrate, a weighing module provided at the upper end of the substrate, a tray provided on the weighing module, and a lifting drive module fixed to the upper end of the substrate; the upper end of the lifting drive module is connected to the tray, and the lifting drive module drives the tray to perform vertical lifting; a guide rod is provided at the lower end of the tray, the lower end of the guide rod penetrates the substrate, a clamping module is fixedly provided on the upper end surface of the substrate, two symmetrically distributed guide members are provided at the transmission end of the clamping module, the guide members are arranged outside the guide rod, and the clamping module drives the guide members to approach each other to guide the guide rod.

2. The weighing mechanism according to claim 1, wherein There are two lifting drive modules, and the lifting drive modules are symmetrically distributed on the lower end surface of the tray.

3. The weighing mechanism according to claim 1, characterized in that, There are four guide rods and clamping modules respectively, and the upper ends of the guide rods are connected to the corners of the lower end surface of the tray.

4. The weighing mechanism according to claim 1, characterized in that, The clamping module includes a pneumatic gripper and a clamping arm fixed to the moving end of the pneumatic gripper; the guide member is assembled on the opposite side of the clamping arm.

5. The weighing mechanism according to claim 1, characterized in that The guide member is specifically a semi-circular bushing.

6. The weighing mechanism according to claim 1, wherein, A lifting drive assembly is provided at the lower end of the weighing module, and the lifting drive assembly drives the weighing module to perform vertical lifting.

7. The weighing mechanism according to claim 6, characterized in that, The lifting drive assembly includes a lifting plate fixed to the lower end of the weighing module and a lifting cylinder provided on the substrate; the transmission end of the lifting cylinder is connected to the lower end of the lifting plate; the lifting cylinder drives the lifting plate to lift, so as to drive the weighing module to lift.

8. The weighing mechanism according to claim 7, characterized in that, Guide columns are provided at the corners of the lower end surface of the lifting plate, and the lower ends of the guide columns penetrate the substrate.

9. The weighing mechanism according to claim 1, wherein A support frame is provided at the lower end of the lifting drive module, and the support frame is fixed to the upper end surface of the substrate.

10. The weighing mechanism according to claim 1, characterized in that, Multiple positioning columns are provided on the upper end surface of the tray.

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