force measuring device

Abstract

The utility model discloses a force measuring device relates to force measurement technical field. Force measuring device includes mounting seat, first fixed seat, adapter seat and force measuring piece, and first fixed seat is located in mounting seat for bearing linear motor, and adapter seat is slidably arranged in mounting seat and is located the top of first fixed seat, and adapter seat is used for connecting the output shaft of linear motor to slide along mounting seat under the drive of linear motor, and force measuring piece is arranged in the side of adapter seat away from first fixed seat and is connected with adapter seat, and force measuring piece is used to detect the output force of linear motor. The utility model provides technical scheme to improve the measurement efficiency and measurement accuracy of the output force of linear motor.

Description

Technical Field

[0001] This utility model relates to the field of force measurement technology, and in particular to a force measuring device. Background Technology

[0002] The rapid development of industrial automation and intelligent equipment has placed higher demands on the application of linear motors. As a key power component in equipment, linear motors play an important role in various automated production lines, robots, drones, and other intelligent devices. To improve production efficiency, ensure operational safety, and maintain stable equipment performance, the performance testing and maintenance of linear motors, especially the measurement of output force, has become particularly crucial.

[0003] However, existing force measuring devices typically contain multiple sophisticated mechanical and electrical components and complex control systems, relying on changes in parameters such as current, voltage, and power of the linear motor to indirectly infer its output force. The measurement process of existing force measuring devices is cumbersome and, in high-speed, high-precision applications, insufficiently efficient and accurate. Utility Model Content

[0004] The main purpose of this invention is to provide a force measuring device that aims to improve the efficiency and accuracy of measuring the output force of a linear motor.

[0005] To achieve the above objectives, the present invention proposes a force measuring device for measuring the output force of a linear motor, comprising:

[0006] Mounting base;

[0007] A first fixed base is provided on the mounting base and is used to support the linear motor;

[0008] An adapter, slidably disposed on the mounting base and located above the first fixed base, is used to connect the output shaft of the linear motor to slide along the mounting base under the drive of the linear motor; and

[0009] A force measuring element is disposed on the side of the adapter facing away from the first fixed base and connected to the adapter. The force measuring element is used to detect the output force of the linear motor.

[0010] In one embodiment, the force measuring device further includes a transmission component, one end of which is sleeved on the outer periphery of the output shaft of the linear motor, and the other end of which is connected to the adapter.

[0011] In one embodiment, the transmission member is provided with a threaded hole for threaded connection with the output shaft of the linear motor; or

[0012] The transmission component is provided with a sleeve hole for interference fit with the output shaft of the linear motor.

[0013] In one embodiment, the force measuring device further includes a limiting structure, which connects the adapter and the transmission member.

[0014] In one embodiment, the limiting structure includes a protrusion and a latch that mates with the protrusion, one of the adapter and the transmission member is provided with the protrusion, and the other of the adapter and the transmission member is provided with the latch.

[0015] In one embodiment, the adapter includes a sliding portion and a connecting portion that are bent and connected. The sliding portion is slidably disposed on the mounting base, and the connecting portion is disposed on the side of the sliding portion near the first fixed base. The connecting portion is provided with the bayonet, and the connecting portion is used to place or connect a force measuring component.

[0016] In one embodiment, the mounting base includes:

[0017] Base;

[0018] A vertical plate is erected on the base, and the first fixing seat is disposed on the vertical plate; and

[0019] A guide rail is provided on the upright plate. The guide rail and the first fixed seat are arranged vertically along the height direction of the upright plate. The guide rail extends along the height direction of the upright plate, and the adapter seat is slidably provided on the guide rail.

[0020] In one embodiment, the force measuring device further includes:

[0021] The power supply module is provided with a second fixed seat on the base, which is located close to the upright plate. The power supply module is installed on the second fixed seat and is used to electrically connect with the linear motor.

[0022] In one embodiment, the first fixed base includes a fixed plate, a base plate, and two limiting parts. The fixed plate is fixed to the mounting base, the base plate is located at one end of the fixed plate away from the adapter base, and the two limiting parts are parallel and spaced apart at both ends of the fixed plate. The limiting parts are used to limit the relative sides of the linear motor.

[0023] In one embodiment, the first fixing base further includes a fastener for detachably connecting the limiting portion and the linear motor.

[0024] The technical solution of this utility model includes a mounting base, a first fixed base, an adapter base, and a force measuring component in a force measuring device. The first fixed base is located on the mounting base and supports the linear motor. The adapter base is slidably located on the mounting base and above the first fixed base, connecting the output shaft of the linear motor to slide along the mounting base under the drive of the linear motor. The force measuring component is located on the side of the adapter base opposite to the first fixed base and connected to the adapter base, used to detect the output force of the linear motor. Compared to existing force measuring devices that involve multiple complex structures and indirect measurement, the technical solution of this utility model includes an adapter base, allowing the output force of the linear motor to directly act on the adapter base. By connecting the force measuring component to the adapter base, the force exerted by the linear motor when pushing the adapter base and moving it on the mounting base can be directly detected. The force measured by the force measuring component is the output force of the linear motor. Thus, the force measuring component directly detects the output force of the linear motor, improving the measurement efficiency and accuracy. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the structure of an embodiment of the force measuring device provided by this utility model;

[0027] Figure 2 for Figure 1 A partial structural schematic diagram of one embodiment;

[0028] Figure 3 for Figure 2 A schematic diagram of one embodiment of the transmission component and linear motor.

[0029] Explanation of icon numbers:

[0030] 110. Base; 120. Upright plate; 130. Guide rail;

[0031] 200, First fixed seat; 210, Base plate; 220, Fixing plate; 230, Limiting part; 231, Mounting hole;

[0032] 300. Adapter; 310. Sliding part; 320. Connecting part;

[0033] 400. Weights;

[0034] 500. Transmission component; 510. Protrusion;

[0035] 610. PCBA board; 620. Second mounting bracket;

[0036] 700, Linear motor; 710, Output shaft.

[0037] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0039] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0040] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0041] The rapid development of industrial automation and intelligent equipment has placed higher demands on the application of linear motors. As a key power component in equipment, linear motors play an important role in various automated production lines, robots, drones, and other intelligent devices. To improve production efficiency, ensure operational safety, and maintain stable equipment performance, the performance testing and maintenance of linear motors, especially the measurement of output force, has become particularly crucial.

[0042] However, existing force measuring devices typically contain multiple sophisticated mechanical and electrical components and complex control systems, relying on changes in parameters such as current, voltage, and power of the linear motor to indirectly infer its output force. The measurement process of existing force measuring devices is cumbersome and, in high-speed, high-precision applications, insufficiently efficient and accurate.

[0043] This invention proposes a force measuring device to improve the efficiency and accuracy of measuring the output force of a linear motor.

[0044] Please see Figure 1 and Figure 2 In one embodiment, the force measuring device includes a mounting base, a first fixed base 200, an adapter base 300, and a force measuring element. The first fixed base 200 is disposed on the mounting base and is used to support the linear motor 700. The adapter base 300 is slidably disposed on the mounting base and located above the first fixed base 200. The adapter base 300 is used to connect the output shaft 710 of the linear motor 700 so that it slides along the mounting base under the drive of the linear motor 700. The force measuring element is disposed on the side of the adapter base 300 opposite to the first fixed base 200 and connected to the adapter base 300. The force measuring element is used to detect the output force of the linear motor 700.

[0045] The force measuring device is used to measure the output force of the linear motor 700. The linear motor 700 can be a single-axis motor or a dual-axis motor; there is no limitation on this.

[0046] The mounting base provides a foundation and support for the force measuring device, and the first fixing base 200 is used to position and support the linear motor 700. Specifically, the first fixing base 200 is provided with a placement slot for supporting and positioning the linear motor 700.

[0047] The adapter 300 is used to bear the output force of the linear motor 700. Specifically, the adapter 300 is aligned with the opening of the placement slot to facilitate connection between the adapter 300 and the output shaft 710 of the linear motor 700. The adapter 300 can reciprocate linearly along the axial direction of the linear motor 700 on the mounting base to ensure that the sliding direction of the adapter 300 is consistent with the extension / retraction direction of the output shaft 710.

[0048] A force measuring element is used to detect the force exerted by the linear motor 700 on the adapter 300. In one embodiment, the force measuring element is a weight 400, which is placed on the adapter 300. When the linear motor 700 can drive the adapter 300 to slide along the mounting base and make the adapter 300 slide at a constant speed, the weight of the weight 400 placed on the adapter 300 is the output force of the linear motor 700. In another embodiment, the force measuring element can be a push-pull force gauge, which is fixed to the mounting base above the adapter 300. The detection end of the push-pull force gauge is connected to the adapter 300. When the linear motor 700 pushes or pulls the adapter 300, causing the adapter 300 to slide along the mounting base towards or away from the push-pull force gauge, the pushing or pulling force measured by the push-pull force gauge is the output force of the linear motor 700. The preferred embodiment of the force measuring component is a weight 400, which is placed directly on the adapter 300 without the need for additional structural adjustments. Different weights of weight 400 can be flexibly replaced, and the output force of the linear motor 700 can be directly obtained through the weight of the weight 400, making the operation more convenient and faster.

[0049] The technical solution of this utility model includes a mounting base, a first fixed base 200, an adapter base 300, and a force measuring component in a force measuring device. The first fixed base 200 is mounted on the mounting base and is used to support the linear motor 700. The adapter base 300 is slidably mounted on the mounting base and located above the first fixed base 200. The adapter base 300 is used to connect the output shaft 710 of the linear motor 700 so that it slides along the mounting base under the drive of the linear motor 700. The force measuring component is located on the side of the adapter base 300 facing away from the first fixed base 200 and is connected to the adapter base 300. The force measuring component is used to detect the output force of the linear motor 700. Compared to existing force measuring devices that involve multiple complex structures and indirect measurement, the present invention provides an adapter 300. The output force of the linear motor 700 can directly act on the adapter 300. By connecting a force measuring element to the adapter 300, the force exerted by the linear motor 700 when pushing the adapter 300 and moving it on the mounting base can be directly detected. The force measured by the force measuring element is then the output force of the linear motor 700. Thus, the force measuring element directly detects the output force of the linear motor 700, improving the measurement efficiency and accuracy.

[0050] Please see Figure 2 and Figure 3 In one embodiment, the force measuring device further includes a transmission member 500, one end of which is sleeved on the outer periphery of the output shaft 710 of the linear motor 700, and the other end of which is connected to the adapter 300.

[0051] In one embodiment, the transmission member 500 is provided with a threaded hole for threaded connection with the output shaft 710 of the linear motor 700. Specifically, the outer periphery of the output shaft 710 of the linear motor 700 is provided with a thread, and the transmission member 500 is provided with a threaded hole on the side facing the first fixed seat 200. The axis of the threaded hole is arranged to coincide with the axis of the output shaft 710, so that the transmission member 500 can be threadedly connected with the output shaft 710 of the linear motor 700.

[0052] In one embodiment, the transmission member 500 is provided with a sleeve hole for interference fit with the output shaft 710 of the linear motor 700. Specifically, the outer peripheral surface of the output shaft 710 of the linear motor 700 is smoothly provided, and the transmission member 500 is provided with a sleeve hole on the side facing the first fixed seat 200. The axis of the sleeve hole coincides with the axis of the output shaft 710. The inner diameter of the sleeve hole is equal to or slightly smaller than the outer diameter of the output shaft 710 of the linear motor 700, so that the transmission member 500 can be stably sleeved on the output shaft 710 of the linear motor 700.

[0053] In the technical solution of this utility model embodiment, by setting the transmission component 500, the output shaft 710 of the linear motor 700 and the adapter 300 can be connected by transmission. By setting the threaded hole or sleeve hole in the transmission component 500, the transmission component 500 can be stably fixed to the output shaft 710 of the linear motor 700, avoiding loss of the output force of the linear motor 700, ensuring that the output force of the linear motor 700 can be stably applied to the adapter 300 through the transmission component 500, and improving the reliability of the force measuring device.

[0054] Please see Figure 2 and Figure 3 In one embodiment, the force measuring device further includes a limiting structure, which connects the adapter 300 and the transmission member 500.

[0055] In one embodiment, the limiting structure includes a protrusion 510 and a latch that engages with the protrusion 510. One of the adapter 300 and the transmission member 500 is provided with the protrusion 510, and the other of the adapter 300 and the transmission member 500 is provided with the latch.

[0056] Specifically, in one embodiment, the transmission member 500 is U-shaped, with a protrusion 510 protruding from the side of the transmission member 500 facing the adapter 300. The adapter 300 has a latch on the side facing the first fixed seat 200, which is directly opposite the opening of the placement groove. The transmission member 500 abuts against the adapter 300, and the protrusion 510 can be correspondingly engaged in the latch to restrict the relative movement between the transmission member 500 and the adapter 300. In another embodiment, the adapter 300 has a protrusion 510 on the side facing the first fixed seat 200, and the transmission member 500 has a corresponding latch. The protrusion 510 can be correspondingly engaged in the latch. Here, the specific placement position of the protrusion 510 and the latch is not limited.

[0057] Of course, in other embodiments, the limiting structure may also include an adsorption member, which is disposed in one of the adapter 300 and the transmission member 500 to adsorb the other, thereby realizing the connection between the adapter 300 and the transmission member 500. Here, no limitation is made.

[0058] In the technical solution of this utility model embodiment, by setting a limiting structure, a stable connection between the transmission component 500 and the adapter 300 can be achieved; by setting the limiting structure as a protrusion 510 and a bayonet that cooperates with the protrusion 510, the structure is simple and the operation is convenient and quick.

[0059] Please see Figure 1 and Figure 2 In one embodiment, the adapter 300 includes a sliding portion 310 and a connecting portion 320 connected by bending. The sliding portion 310 is slidably disposed on the mounting base, and the connecting portion 320 is disposed on the side of the sliding portion 310 near the first fixed base 200. The connecting portion 320 is provided with a bayonet and is used to place or connect a force measuring element.

[0060] Specifically, the sliding part 310 is arranged parallel to the mounting base, and the connecting part 320 is perpendicular to the sliding part 310 and located directly above the first fixed base 200. The connecting part 320 is perpendicular to the output shaft 710 of the linear motor 700. Taking the force measuring element as a weight 400 as an example, the side of the connecting part 320 away from the first fixed base 200 is used to place the weight 400; taking the force measuring element as a push-pull force gauge as an example, the side of the connecting part 320 away from the first fixed base 200 is used to connect the push-pull force gauge. Further, the connecting part 320 includes two parallel and spaced support blocks, which are used to jointly support the weight 400, and the gap between the two support blocks forms a bayonet. Of course, the bayonet can also be provided on the side of the connecting part 320 facing the first fixed base 200, and the bayonet does not penetrate the connecting part 320. Here, there is no limitation.

[0061] In the technical solution of this utility model embodiment, the sliding part 310 ensures the stability of the sliding connection between the adapter 300 and the mounting base, and the connecting part 320 provides the adapter 300 with a position to connect with the force measuring element and the transmission block, thus realizing a reasonable layout of the structure.

[0062] Please see Figure 1 and Figure 2 In one embodiment, the mounting base includes a base 110, an upright plate 120, and a guide rail 130. The upright plate 120 is vertically disposed on the base 110, and the first fixing seat 200 is disposed on the upright plate 120. The guide rail 130 is disposed on the upright plate 120, and the guide rail 130 and the first fixing seat 200 are arranged vertically along the height direction of the upright plate 120. The guide rail 130 extends along the height direction of the upright plate 120, and the adapter seat 300 is slidably disposed on the guide rail 130.

[0063] Specifically, the upright plate 120 is located above and perpendicular to the base 110. The guide rail 130 is located at the end of the upright plate 120 away from the base 110 and extends toward the first fixed seat 200. The first fixed seat 200 is located below the guide rail 130. The sliding part 310 is arranged parallel to the upright plate 120 and slidably disposed on the guide rail 130, so that the linear motor 700 can drive the adapter 300 to move linearly along the guide rail 130 in a direction away from or toward the first fixed seat 200. The guide rail 130 is a linear guide rail 130. The sliding part 310 can be slidably disposed on the guide rail 130 by means of a slider, or a groove can be directly provided on the sliding part 310 for slidable connection with the guide rail 130; no limitation is made here.

[0064] The technical solution of this utility model embodiment, by setting the upright plate 120 and the guide rail 130, can guide and limit the sliding of the adapter 300, ensuring that the output shaft 710 of the linear motor 700 drives the adapter 300 to always move in a straight line, avoiding the loss of the output force of the linear motor 700 and ensuring the accuracy of the measurement.

[0065] Please see Figure 1 In one embodiment, the force measuring device further includes a power supply module. The base 110 is provided with a second fixed seat 620, which is located near the upright plate 120. The power supply module is installed on the second fixed seat 620 for electrical connection with the linear motor 700.

[0066] Specifically, in one embodiment, the power supply module includes a PCBA board 610, which is electrically connected to the linear motor 700. The PCBA board 610 supplies power to the linear motor 700 and controls its preset output force. A force measuring element can measure the actual output force corresponding to the preset output force. A second fixing seat 620 is located on one side of the upright plate 120. The PCBA board 610 is fixed to the side of the second fixing seat 620 away from the upright plate 120 by bolts to avoid structural interference. Of course, in other embodiments, the power supply module may also include a power board, capacitor banks, etc., and this is not a limitation.

[0067] In the technical solution of this utility model embodiment, by setting a power supply module, the force measuring device can be used independently, which improves the ease of use; and the power supply module can control the preset output force of the linear motor 700, so as to perform multiple different output force measurements on the linear motor 700, which improves the measurement accuracy and reliability.

[0068] Please see Figure 1 and Figure 2 In one embodiment, the first fixed base 200 includes a fixed plate 220, a base plate 210 and two limiting parts 230. The fixed plate 220 is fixed to the mounting base, the base plate 210 is disposed at one end of the fixed plate 220 away from the adapter base 300, and the two limiting parts 230 are disposed parallel to each other at both ends of the fixed plate 220. The limiting parts 230 are used to limit the relative sides of the linear motor 700.

[0069] Specifically, the fixing plate 220, the base plate 210, and the two limiting parts 230 together form a placement groove. The fixing plate 220 is arranged parallel to the upright plate 120. The base plate 210 is used to support the linear motor 700. The two limiting parts 230 are arranged parallel to each other at both ends of the fixing plate 220 to form an opening communicating with the placement groove. The opening is opposite to the fixing plate 220 and connects to the groove opening of the placement groove to facilitate the placement of the linear motor 700. When the linear motor 700 is placed in the placement groove, the two limiting parts 230 are located on opposite sides of the linear motor 700 to limit the linear motor 700. In one embodiment, the base plate 210 has a through opening to avoid the other output shaft 710 of the linear motor 700 when the linear motor 700 is a dual-output shaft motor.

[0070] In one embodiment, the first mounting base 200 further includes a fastener for detachably connecting the limiting portion 230 and the linear motor 700.

[0071] Specifically, each limiting part 230 is provided with a mounting hole 231 communicating with the placement groove. A fastener is detachably inserted through the mounting hole 231 to abut against two opposing side walls of the linear motor 700, thereby confining the linear motor 700 within the placement groove and aligning the output shaft 710 of the linear motor 700 with the bayonet of the adapter 300. The fastener is configured as a bolt, and the wall of the mounting hole 231 is correspondingly threaded. Of course, in other embodiments, the fastener may also be configured as a pin, capable of interference fit with the mounting hole 231 to abut against the linear motor 700; or, the fastener may be configured as an elastic element, located between the linear motor 700 and the limiting part 230 to position the linear motor 700. No limitation is made here.

[0072] In the technical solution of this utility model embodiment, by setting a limiting part 230 in the first fixed seat 200, the linear motor 700 can be positioned and stably restricted to the first fixed seat 200; by setting fasteners, they can cooperate with the limiting part 230 to further restrict the movement of the linear motor 700, ensuring that during the measurement process, the output shaft 710 of the linear motor 700 is always aligned with the bayonet of the adapter 300, avoiding damage to the adapter 300 or the transmission component 500, and further ensuring the accuracy and reliability of the measurement.

[0073] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A force measuring device for measuring the output force of a linear motor, characterized in that, include: Mounting base; A first fixed base is provided on the mounting base and is used to support the linear motor; An adapter is slidably disposed on the mounting base and located above the first fixed base. The adapter is used to connect the output shaft of the linear motor so that it slides along the mounting base under the drive of the linear motor. as well as A force measuring element is disposed on the side of the adapter facing away from the first fixed base and connected to the adapter. The force measuring element is used to detect the output force of the linear motor.

2. The force measuring device as described in claim 1, characterized in that, The force measuring device also includes a transmission component, one end of which is sleeved on the outer periphery of the output shaft of the linear motor, and the other end of which is connected to the adapter.

3. The force measuring device as described in claim 2, characterized in that, The transmission component is provided with a threaded hole for threaded connection with the output shaft of the linear motor; or The transmission component is provided with a sleeve hole for interference fit with the output shaft of the linear motor.

4. The force measuring device as described in claim 2, characterized in that, The force measuring device also includes a limiting structure, which connects the adapter and the transmission component.

5. The force measuring device as described in claim 4, characterized in that, The limiting structure includes a protrusion and a latch that mates with the protrusion. One of the adapter and the transmission member is provided with the protrusion, and the other of the adapter and the transmission member is provided with the latch.

6. The force measuring device as described in claim 5, characterized in that, The adapter includes a bent sliding part and a connecting part. The sliding part is slidably disposed on the mounting base, and the connecting part is disposed on the side of the sliding part near the first fixed base. The connecting part is provided with the bayonet and is used to place or connect the force measuring component.

7. The force measuring device as described in claim 1, characterized in that, The mounting base includes: Base; A vertical plate is erected on the base, and the first fixing seat is disposed on the vertical plate; and A guide rail is provided on the upright plate. The guide rail and the first fixed seat are arranged vertically along the height direction of the upright plate. The guide rail extends along the height direction of the upright plate, and the adapter seat is slidably provided on the guide rail.

8. The force measuring device as described in claim 7, characterized in that, The force measuring device also includes: The power supply module is provided with a second fixed seat on the base, which is located close to the upright plate. The power supply module is installed on the second fixed seat and is used to electrically connect with the linear motor.

9. The force measuring device as described in claim 1, characterized in that, The first fixed base includes a fixed plate, a base plate, and two limiting parts. The fixed plate is fixed to the mounting base, the base plate is located at the end of the fixed plate away from the adapter, and the two limiting parts are parallel and spaced apart at both ends of the fixed plate. The limiting parts are used to limit the relative sides of the linear motor.

10. The force measuring device as described in claim 9, characterized in that, The first fixing base also includes a fastener for detachably connecting the limiting part and the linear motor.

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