Weighing device with high repetition precision

Abstract

The utility model discloses a weighing device with high repetition precision, which relates to the technical field of weighing devices and comprises a main body bearing part, a lifting device, a weighing device, a conveying roller way part, a tray part and a floating mechanism. By using the damping bottom feet and the adjusting bottom feet, the interference of internal vibration, impact and external factors on the electronic scale in the weighing process of a machine tool is effectively reduced, the service life of the electronic scale is prolonged, the maintenance frequency is reduced, and the maintenance cost of equipment is reduced; through precise butt joint of the conical top and the conical groove, the weighing repetition precision can reach 0.1% o, and high-precision weighing can provide more accurate weight data for the production process, so that the product quality and the production efficiency are improved; a positioning tray of the tray part can be adjusted according to the shapes and the sizes of different workpieces, so that the universality and the flexibility of the device are improved; the combination of the lifting device and the conveying roller bed part realizes the automatic lifting and conveying of the tray, reduces the manual operation, and improves the production automation level.

Description

TECHNICAL FIELD

[0001] The utility model relates to weighing device technical field, concretely is a kind of high repeat accuracy's weighing device. BACKGROUND

[0002] In modern industrial production, weighing device is widely used in the weight measurement of various materials, especially in the scene needing high-precision weighing, such as precision machining, quality detection and other fields. However, the existing tray weight weighing technology on the weighing roller way has some deficiencies. For example, the electronic scale body is easily disturbed by external environmental factors and machine tool vibration, impact and other disturbances, resulting in the repeatability of weighing is not ideal. Such unstable weighing results not only affect the quality control in production process, but also may lead to error accumulation of subsequent process, increase production cost and scrap rate. In addition, frequent external disturbance may shorten the service life of electronic scale, increase the maintenance cost of equipment. SUMMARY

[0003] The utility model aims at providing a kind of high repeat accuracy's weighing device, to solve the problems, such as the repeatability of weighing is not ideal caused by the traditional electronic scale body being easily disturbed by external environmental factors and machine tool vibration, impact and other disturbances in the above background technology, and further caused by increasing production cost and scrap rate, increasing the maintenance cost of equipment.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of high repeat accuracy's weighing device, including main body bearing part and being set with liftable and movable lifting device on it, weighing device is set in the lower of the lifting device, and upper part is provided with conveying roller way part, the top surface of the conveying roller way part is positioned and conveyed with tray part, and floating mechanism is set on the conveying roller way part;The main body bearing part includes bearing base and the two bearing columns set on its top and the bearing crossbeam jointly arranged, and two bearing columns are set lifting track in succession and then set lifting device;The lifting device includes lifting base plate and its two lifting supports connected and is jointly arranged with lifting connecting rod on outside;The weighing device includes multiple shock-absorbing foot and multiple adjusting foot, multiple adjusting foot is jointly arranged with electronic scale support frame and is supported with electronic scale, and multiple electronic scale docking columns are set on the top surface of the electronic scale;The conveying roller way part includes roller way support and conveying roller way set on it;The tray part includes tray positioning bottom plate and positioning tray;The floating mechanism includes floating flat plate and multiple floating support columns and multiple floating positioning columns respectively set on the upper and lower sides of it.

[0005] Preferably, the load-bearing base is horizontally arranged, and a load-bearing column is vertically arranged near both ends on one side of its top surface. The top of the two load-bearing columns is provided with a horizontal load-bearing beam. A lifting rail is vertically arranged on the outer side of each of the two load-bearing columns, and a lifting device is provided on each of the two lifting rails through matching sliders. A lifting screw is vertically arranged between the load-bearing beam and the load-bearing base through a bearing seat, and is located in the same plane as the two lifting rails. A screw motor is provided at the top of the lifting screw, and a screw slider with matching threads is provided on the lifting screw. The screw slider is fixedly connected to the lifting device.

[0006] Preferably, the lifting device includes a lifting base plate that is fixedly connected to the lead screw slider and the two sliders. An L-shaped lifting bracket is provided on the outer side of the lifting base plate. The horizontal front ends of the two lifting brackets are connected as one unit by a horizontal lifting connecting rod. A conveying roller section is provided on the top surface of the horizontal part of the lifting bracket.

[0007] Preferably, the weighing device includes multiple pairs of shock-absorbing feet arranged in pairs on the ground. Each shock-absorbing foot has an adjustable foot on its top surface. An electronic scale support frame is provided through the multiple adjustable feet. An electronic scale is provided on the top surface of the electronic scale support frame. Multiple electronic scale docking columns are vertically arranged on the top surface of the electronic scale. An electronic scale docking cone is provided at the top of the electronic scale docking columns.

[0008] Preferably, the conveyor roller section includes a roller support mounted on the lifting bracket, and a horizontally arranged conveyor roller is mounted on the top of the roller support, with a pallet section positioned and conveyed on the conveyor roller.

[0009] Preferably, the pallet section includes a pallet positioning base plate disposed on the conveyor roller conveyor. A plurality of positioning support blocks are disposed on the top surface of the pallet positioning base plate. A positioning pallet is disposed on the top of the plurality of positioning support blocks. The top of the positioning pallet is positioned and supported by a plurality of positioning support seats. A plurality of positioning blocks are disposed on the bottom surface of the pallet positioning base plate. The positioning blocks correspond one-to-one with the docking column of the electronic scale and are coaxially disposed. The bottom of the positioning blocks is provided with an upwardly concave conical groove.

[0010] Preferably, the floating mechanism includes a plurality of support bolts provided on the roller conveyor support, a floating plate being supported by the plurality of support bolts, a plurality of floating support columns being provided on the top surface of the floating plate, the floating support columns corresponding one-to-one with the positioning blocks and being coaxially arranged, the top of the floating support columns being provided with floating docking conical tops for precise positioning with the positioning blocks; a plurality of floating positioning columns being provided on the bottom surface of the floating plate, coaxial with the floating support columns, the bottom ends of the floating positioning columns being provided with concave conical grooves.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1、The utility model discloses a shock-absorbing foot and adjusting foot can effectively reduce the interference of internal vibration, impact and external factors on the electronic scale during the weighing process of the machine tool, and the precision of the conical top and the conical groove is precisely connected, so that the weighing repeatability can reach 0.1 ‰, which is significantly improved compared with the traditional weighing technology.

[0013] 2、The utility model discloses a shock-absorbing foot and adjusting foot can effectively reduce the interference of internal vibration, impact and external factors on the electronic scale during the weighing process of the machine tool, and the precision of the conical top and the conical groove is precisely connected, so that the weighing repeatability can reach 0.1 ‰, which is significantly improved compared with the traditional weighing technology.

[0014] 3、The utility model discloses a shock-absorbing foot and adjusting foot can effectively reduce the interference of internal vibration, impact and external factors on the electronic scale during the weighing process of the machine tool, and the precision of the conical top and the conical groove is precisely connected, so that the weighing repeatability can reach 0.1 ‰, which is significantly improved compared with the traditional weighing technology.

[0015] 4、The utility model discloses a shock-absorbing foot and adjusting foot can effectively reduce the interference of internal vibration, impact and external factors on the electronic scale during the weighing process of the machine tool, and the precision of the conical top and the conical groove is precisely connected, so that the weighing repeatability can reach 0.1 ‰, which is significantly improved compared with the traditional weighing technology. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the axonometric drawing of the utility model;

[0017] Figure 2 It is the front view;

[0018] Figure 3 It is the left view;

[0019] Figure 4 It is the right view;

[0020] Figure 5 It is Figure 4 The enlarged view of A;

[0021] Figure 6 It is Figure 4 The enlarged view of B;

[0022] Figure 7 It is the top view;

[0023] Figure 8 It is the bottom view;

[0024] Figure 9 It is the electronic scale weighing floating mechanism schematic view;

[0025] Figure 10 It is the electronic scale weighing floating mechanism and tray part schematic view;

[0026] In the figure: main body bearing part-1, bearing base-11, bearing column-12, bearing cross beam-13, lifting track-14, lifting lead screw-15, lead screw motor-16, lead screw sliding block-17, lifting device-2, lifting base plate-21, lifting support-22, lifting connecting rod-23, weighing device-3, shock absorbing foot-31, adjusting foot-32, electronic scale support frame-33, electronic scale-34, electronic scale butt joint column-35, electronic scale butt joint cone top-36, conveying roller way part-4, roller way support-41, conveying roller way-42, tray part-5, tray positioning bottom plate-51, positioning support block-52, positioning tray-53, positioning block-54, floating mechanism-6, supporting bolt-61, floating flat plate-62, floating support column-63, floating butt joint cone top-64, floating positioning column-65. DETAILED DESCRIPTION

[0027] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the technical scheme in the utility model embodiment is described clearly and completely below in combination with the drawings and specific embodiments.

[0028] Please refer to Figures 1-10 , Figure 1 is the axonometric view of the utility model; Figure 2 is the front view; Figure 3 is the left view; Figure 4 is the right view; Figure 5 is Figure 4 is the enlarged view of A in the middle; Figure 6 is the enlarged view of B in the middle; Figure 4

[0029] Figure 7 is the top view; Figure 8 is the bottom view; Figure 9 is the electronic scale weighing floating mechanism schematic diagram; Figure 10 is the electronic scale weighing floating mechanism and tray part schematic diagram.

[0030] The utility model provides a kind of high repeatability's weighing device, including main body bearing part 1, and in the main body bearing part 1, there is liftable and movable lifting device 2, there is weighing device 3 below the lifting device 2, there is conveying roller way part 4 on the lifting device 2, the top surface of the conveying roller way part 4 is positioned and conveyed with tray part 5, there is floating mechanism 6 on the conveying roller way part 4.

[0031] ​The main body bearing part 1 includes a horizontally arranged bearing base 11, a bearing vertical column 12 is vertically arranged at one side of the top surface of the bearing base 11 near both ends respectively, the top ends of the two bearing vertical columns 12 are commonly provided with a horizontal bearing cross beam 13, the outer side surfaces of the two bearing vertical columns 12 are respectively vertically provided with a lifting track 14, the two lifting tracks 14 are respectively commonly provided with a lifting device 2 through matched sliding blocks, a lifting lead screw 15 which is in the same plane with the two lifting tracks 14 is vertically arranged between the bearing cross beam 13 and the bearing base 11 through a bearing seat, the top end of the lifting lead screw 15 is provided with a lead screw motor 16, a thread-matched lead screw sliding block 17 is arranged on the lifting lead screw 15, and the lead screw sliding block 17 is fixedly connected with the lifting device 2.

[0032] The lifting device 2 includes a lifting base plate 21 which is fixedly connected with the lead screw sliding block 17 and the two sliding blocks, an L-shaped lifting support 22 is arranged on the outer side surface of the lifting base plate 21, the two lifting supports 22 are integrally connected through a horizontal lifting connecting rod 23 at the horizontal front ends, and a conveying roller way part 4 is arranged on the top surface of the horizontal part of the lifting support 22.

[0033] The weighing device 3 includes a plurality of pairs of damping base feet 31 which are arranged in pairs on the ground, an adjusting base foot 32 is arranged on the top surface of each damping base foot 31, an electronic scale support frame 33 is commonly arranged through the plurality of adjusting base feet 32, an electronic scale 34 is arranged on the top surface of the electronic scale support frame 33, a plurality of electronic scale butt joint vertical columns 35 are vertically arranged on the top surface of the electronic scale 34, and an electronic scale butt joint cone top 36 is arranged at the top end of the electronic scale butt joint vertical column 35; in use, the electronic scale 32 is aligned and damped through the electronic scale support frame 31, and the electronic scale support frame 31 is a key component for improving the accuracy and the repeated accuracy of the electronic scale.

[0034] The conveying roller way part 4 includes a roller way support 41 which is arranged on the lifting support 22, a conveying roller way 42 is arranged on the top of the roller way support 31, and a tray part 5 is positioned and conveyed on the conveying roller way 42.

[0035] The tray part 5 includes a tray positioning base plate 51 which is arranged on the conveying roller way 42, a plurality of positioning support blocks 52 are arranged on the top surface of the tray positioning base plate 51, a positioning tray 53 is commonly arranged at the top ends of the plurality of positioning support blocks 52, and the top ends of the positioning tray 53 positionally support workpieces through a plurality of positioning support seats; a plurality of positioning blocks 54 are arranged on the bottom surface of the tray positioning base plate 51, the positioning blocks 54 are coaxially arranged one by one and correspond to the electronic scale butt joint vertical columns 35, the bottom of the positioning block 54 is provided with a concave conical groove for precise positioning.

[0036] The floating mechanism 6 comprises a plurality of supporting bolts 61 arranged on the roller bed support 41, a floating plate 62 supported by the plurality of supporting bolts 61, a plurality of floating supporting columns 63 arranged on the top surface of the floating plate 62, the floating supporting columns 63 corresponding to the positioning blocks 54 one by one and arranged coaxially, a floating butt conical top 64 arranged at the top end of the floating supporting column 63, and used for precise positioning with the positioning block 54; a plurality of floating positioning columns 65 coaxial with the floating supporting columns 63 are arranged on the bottom surface of the floating plate 62, and a concave conical groove is arranged at the bottom end of the floating positioning column 65, and used for precise positioning with the electronic scale butt stand 35.

[0037] In use, the lifting device 2 synchronously lowers the conveying roller bed part 4 and the floating mechanism 6 until the floating mechanism 6 is butted with the electronic scale butt stand 35 of the weighing device 3, at which time the electronic scale 34 weighs the floating mechanism 6; after weighing the floating mechanism 6, the lifting device 2 continues to lower until the tray part 5 is butted with the floating mechanism 6, at which time the electronic scale 34 weighs the total weight of the tray part 5 and the floating mechanism 6; the difference between the two weights on the electronic scale 34 system is obtained, and the weight of the tray part 5 is obtained.

[0038] Although the embodiments of the present application have been shown and described, it is apparent that the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, it can be understood by those skilled in the art that, without departing from the principles and spirits of the present application, all other embodiments obtained by various changes, modifications, replacements and variations of the embodiments without creative labor belong to the protection scope of the present application.

Claims

1. A high-repetition-precision weighing device, characterized by: The utility model provides a kind of lifting device for pallet, including main body load-bearing part (1) and be provided with liftable and movable lifting device (2) on it, weighing device (3) is provided below lifting device (2), upper part is provided with conveying roller way part (4), the top surface of conveying roller way part (4) is positioned and conveyed with tray part (5), floating mechanism (6) is provided on conveying roller way part (4);The main body load-bearing part (1) includes load-bearing pedestal (11) and the two load-bearing columns (12) of top setting and the load-bearing crossbeam (13) of common setting, two load-bearing columns (12) are all provided with lifting rail (14) in turn lifting device (2) is provided;Lifting device (2) includes lifting base plate (21) and its connected two lifting supports (22) and is provided with lifting connecting rod (23) outside jointly;Weighing device (3) includes multiple shock-absorbing foot (31) and multiple adjusting foot (32), multiple adjusting foot (32) are provided with electronic scale support frame (33) and are supported with electronic scale (34), and the top surface of electronic scale (34) is provided with multiple electronic scale docking column (35);Conveying roller way part (4) includes roller way support (41) and conveying roller way (42) provided thereon;Tray part (5) includes tray positioning bottom plate (51) and positioning tray (53);Floating mechanism (6) includes floating flat plate (62) and multiple floating support columns (63) and multiple floating positioning columns (65) respectively provided on the upper and lower sides thereof.

2. The high-repetition-precision weighing device according to claim 1, characterized in that: The load-bearing pedestal (11) is horizontally arranged and vertically arranged with one load-bearing column (12) near both ends at one side of the top surface thereof, and the top ends of the two load-bearing columns (12) are commonly provided with a horizontal load-bearing crossbeam (13); One lifting rail (14) is vertically arranged on the outer side of each of the two load-bearing columns (12), and the two lifting rails (14) are commonly provided with a lifting device (2) through matching sliders; A lifting lead screw (15) in the same plane as the two lifting rails (14) is vertically arranged between the load-bearing crossbeam (13) and the load-bearing pedestal (11) through a bearing seat, a lead screw motor (16) is arranged at the top end of the lifting lead screw (15), a threaded lead screw slider (17) is arranged on the lifting lead screw (15), and the lead screw slider (17) is fixedly connected to the lifting device (2).

3. The high-repetition-precision weighing device according to claim 2, characterized in that: The lifting device (2) includes a lifting base plate (21) fixedly connected to the lead screw slider (17) and the two sliders, L-shaped lifting supports (22) are arranged on the outer side of the lifting base plate (21), and the two lifting supports (22) are integrally connected through a horizontal lifting connecting rod (23) at the horizontal front ends; A conveying roller way part (4) is arranged on the top surface of the horizontal part of the lifting support (22).

4. The high-repetition-precision weighing device according to claim 3, characterized in that: The weighing device (3) includes a plurality of pairs of damping foot (31) arranged in pairs on the ground, the top surface of each damping foot (31) is provided with an adjusting foot (32), a plurality of adjusting feet (32) are provided with an electronic scale support frame (33) together, the top surface of the electronic scale support frame (33) is provided with an electronic scale (34), the top surface of the electronic scale (34) is vertically provided with a plurality of electronic scale docking columns (35), and the top end of the electronic scale docking column (35) is provided with an electronic scale docking cone (36).

5. The high-repetition-precision weighing device according to claim 4, characterized in that: The conveying roller section (4) includes a roller bracket (41) arranged on the lifting bracket (22), and the top of the roller bracket (41) is provided with a horizontally arranged conveying roller (42), and the conveying roller (42) is positioned to convey a tray section (5).

6. The high-repetition-precision weighing device according to claim 5, characterized in that: The tray section (5) includes a tray positioning bottom plate (51) arranged on the conveying roller (42), and the top surface of the tray positioning bottom plate (51) is provided with a plurality of positioning support blocks (52), and the top end of the plurality of positioning support blocks (52) is provided with a positioning tray (53) together, and the top end of the positioning tray (53) is positioned by a plurality of positioning support seats to support the workpiece; the bottom surface of the tray positioning bottom plate (51) is provided with a plurality of positioning blocks (54), the positioning blocks (54) are one-to-one corresponding and coaxially arranged with the electronic scale docking columns (35), and the bottom of the positioning blocks (54) is provided with a concave conical groove.

7. The high-repetition-precision weighing device according to claim 6, characterized in that: The floating mechanism (6) includes a plurality of support bolts (61) arranged on the roller bracket (41), and a floating plate (62) is supported by the plurality of support bolts (61), the top surface of the floating plate (62) is provided with a plurality of floating support columns (63), the floating support columns (63) are one-to-one corresponding and coaxially arranged with the positioning blocks (54), and the top end of the floating support columns (63) is provided with a floating docking conical top (64) for precise positioning with the positioning blocks (54); the bottom surface of the floating plate (62) is provided with a plurality of floating positioning columns (65) coaxial with the floating support columns (63), and the bottom end of the floating positioning columns (65) is provided with a concave conical groove.

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