TWM524459U - Strain sensor device - Google Patents

Description

Strain sensing device

The present invention relates to a strain sensing device, and more particularly to a person who is fixed to a tie bar of a machine by magnetic attraction and abutment to sense a strain.

According to a conventional strain sensing device (Taiwan New Patent No. M494298), a body, a locking unit and a strain gauge are included. The base body has a first surface and a second surface. The first surface is provided with a card slot, the first slot is formed in the slot, and the second surface is provided with a second through hole and a recess. The first through hole and the second through hole are continuous. The locking unit comprises a head member, an elastic member, a rod body and a magnetic component. The elastic member is disposed in the card slot and surrounds the rod body, and the two ends of the elastic member are respectively attached to the bottom surface of the head member and the card slot. One end of the rod body is connected to the head piece, and the other end of the rod body passes through the first through hole and the second through hole and is connected with the magnetic component, and the magnetic component is movable to move in the second through hole to adsorb or disengage one machine One of the tables is tied. The strain gauge is disposed in the groove, and one of the strain gauges is tangent to the second surface. When the magnetic component is attracted to the tie rod, the strain gauge is attached to the surface of the tie rod to sense the strain amount. The horizontal measuring tool can clamp the fixed head piece to determine whether the strain sensing device is balanced and adsorbed on the tie rod.

However, the aforementioned patent predecessor is complicated in structure and large in volume, which makes assembly difficult, which is an urgent problem to be solved.

In view of the above prior art problems, the purpose of the present invention is to provide a strain sensing device which is simple in structure and convenient in assembly, and can reduce the production cost to solve the problem of the conventional strain sensing device.

According to the purpose of the present invention, a strain sensing device is proposed, including a body, a locking unit and a strain gauge unit. The first body has a first surface and a second surface, the first surface is provided with at least one first through hole, and the second surface is provided with at least one opening groove and a groove, and the first through hole The open slots pass through. The locking unit comprises a head member, an elastic member, a rod body, a receiving component and a magnetic component. The accommodating component is movably disposed in the open slot, and the accommodating component is provided with a reinforcing portion on a side away from the seat body, and the magnetic component is received in the accommodating component, and one end of the shank is movably connected to the head piece The other end of the rod passes through the first through hole to receive the component and is connected to the magnetic component, and the elastic member surrounds the periphery of the rod body, and the two ends of the elastic member respectively abut the head member and the first surface, the magnetic component The movable member is movable in the open slot to allow the magnetic component to be attracted or disengaged from a tie bar of a machine, and the reinforcing portion abuts or disengages from the tie bar at the same time as the magnetic component. The strain gauge unit includes at least one strain gauge disposed in the groove, and one surface of the strain gauge is tangent to the second surface. When the magnetic component is adsorbed to the tie rod, the strain gauge is attached to the surface of the tie rod to sense strain.

The magnetic component is provided with a first through hole, and the top of the accommodating component is provided with a second through hole. The top edge of the top of the accommodating component is a shoulder. One end of the shank passes through the first through hole and passes through the second through hole. Screwed together, the other end of the rod body is provided with a rod head, the rod head is abutted against the shoulder, and the portion of the rod body that is in contact with the top of the accommodating assembly is fixed together, one end of the rod body The system is screwed together with the head piece. Thus, when the head member is rotated to move the head member up and down the rod body, the pressure exerted by the elastic member on the seat body can be adjusted. Further, when the header is for a horizontal amount When one end of the measuring tool is clamped and fixed, one of the horizontal measuring tools can measure the level of the seat on the tie rod, and adjust the pressure exerted on the seat by the elastic member through the rotating head member, and adjust the seat. The level of the body on the tie rod to improve the accuracy of the sense variable sensing.

Wherein, the seat body further has a receiving groove on the first surface, and a hole is formed between the receiving groove and the groove, and an electronic component disposed in the receiving groove unit is provided, and the electronic component passes through the hole and the strain Connection.

The strain gauge unit further includes a cover body and a pivoting member, wherein the cover system covers the receiving groove of the base body, and the pivoting member is coupled to the first side adjacent to the first surface and the second surface of the base body A connecting hole is formed through the receiving groove, and the pivoting member is provided with a set of holes to communicate with the connecting hole.

Wherein, the peripheral surface of the head piece has a slot which is recessed inward, and the slot is provided for the end clamping portion of the horizontal measuring tool to be inserted.

Among them, the seat body can be designed in a rectangular shape.

The head member includes a through hole, and one end of the rod body is bored in the through hole, and the head member is movably rotated relative to the rod body.

Wherein the seat body is provided with a first guiding portion on the at least one side adjacent to the first surface and the second surface along the accommodating component in the upward and downward movement direction of the accommodating component, and the accommodating component is located at a position opposite to the first guiding portion A second guiding portion is disposed, and the first guiding portion and the second guiding portion are coupled to each other, so that the accommodating assembly can stably move up and down in the opening groove.

Wherein, the bottom of the reinforcing portion is at the same level as the bottom of the magnetic component.

As stated above, the strain sensing device of the present invention has one or more of the following advantages:

1. The overall size of the creation is reduced due to changes in the structural design of the housing, the housing assembly and the magnetic assembly.

2. The creation of the creation is facilitated by the change of structural design, which saves production cost and assembly time.

1‧‧‧ body

10‧‧‧ first surface

100‧‧‧ first through hole

102‧‧‧ accommodating slots

12‧‧‧ second surface

120‧‧‧Open slot

1202‧‧‧first opening

1204‧‧‧second opening

1206‧‧‧First Guidance

122‧‧‧ Groove

14‧‧‧ first side

140‧‧‧connection hole

16‧‧‧ second side

18‧‧‧ third side

19‧‧‧ Hole

2‧‧‧Locking unit

20‧‧‧ accommodating components

202‧‧‧Reinforcement Department

204‧‧‧Second perforation

206‧‧‧ shoulder

208‧‧‧Second Guide

21‧‧‧ Magnetic components

210‧‧‧First perforation

22‧‧‧ rod body

220‧‧‧ rod head

23‧‧‧ headpiece

231‧‧‧ slot

24‧‧‧Flexible parts

3‧‧‧Strain gauge unit

30‧‧‧Strain gauge

32‧‧‧Electronic components

34‧‧‧ Cover

36‧‧‧ pivotal parts

360‧‧‧ hole sets

5‧‧‧Horizontal measuring tools

50‧‧‧Clamping end

52‧‧‧ horizontal department

Figure 1 is a perspective view of an embodiment of the present invention.

Figure 2 is a perspective exploded view of one embodiment of the present invention.

Figure 3 is a perspective exploded view of an embodiment of the present invention.

Figure 4 is a schematic cross-sectional view showing an embodiment of the present invention.

Figure 5 is a schematic diagram of an embodiment of a horizontal measurement tool of the present invention.

Figure 6 is a first schematic view of one embodiment of the horizontal measuring tool of the present invention clamped to the strain sensing device.

Figure 7 is a second schematic view of one embodiment of the horizontal measuring tool of the present invention clamped to the strain sensing device.

In order to understand the technical characteristics, content and advantages of the creation and the effects that can be achieved by the examiner, the author will use the drawings in detail and explain the following in the form of the examples, and the drawings used therein The subject matter is only for the purpose of illustration and supplementary instructions. It is not necessarily the true proportion and precise configuration after the implementation of the original creation. Therefore, the proportions and configuration relationships of the attached drawings should not be interpreted or limited in the actual implementation scope. First described.

Please refer to Figures 2 to 4, the creation is a strain sensing device. It can be applied to injection molding machines, die-casting machines, and the like to measure the clamping force of the machines. The strain sensing device includes a seat body 1, a locking unit 2, and a strain gauge unit 3. The locking unit 2 is disposed between the opposite first surface 10 and the second surface 12 of the base 1. The locking unit 2 can connect the base 1 to a tie bar of the machine. The strain gauge unit 3 is disposed in the seat body 1 and is attached to the surface of the tie rod from the second surface 12 to measure the strain amount.

In one embodiment of the present invention, the base 1 is substantially rectangular, and the first surface 10 is provided with two first through holes 100 and a receiving groove 102. The base 1 is opposite to the first surface 10. The two surfaces 12 are provided with two opening slots 120 and a recess 122. The first side surface 14 of the first surface 10 and the second surface 12 is further provided with a connecting hole 140. Further, each of the first through holes 100 corresponds to one of the open slots 120, and each of the first through holes 100 respectively penetrates the corresponding open slot 120. Further, the two open slots 120 are in the base 1 The second side 16 and the third side 18 of the first side 14 are respectively provided with a first opening 1202, and the second opening 120 is disposed on the second surface 12 of the second body 12, and the first opening 1202 is disposed. Communicating with the second opening 1202. The accommodating groove 102 is disposed at a position between the first surface 10 and the two first through holes 100. The groove 122 is disposed between the second surface 12 and the second opening 120, and the hole 1 is provided with a hole 19 between the receiving groove 102 and the groove 122, so that the receiving groove 102 and the groove 122 are mutually The same. The connecting hole 140 is in communication with the receiving groove 15.

In an embodiment of the present invention, the locking unit 2 includes at least one accommodating component 20, two magnetic components 21 (eg, magnets), two rods 22, two heads 23, and two elastic members 24 (eg, coil springs). ). The accommodating component 20 is movably disposed in the opening slot 120, and the accommodating component 20 is respectively disposed at a position facing the first opening 1202, and the magnetic component 21 is received in the accommodating component 20, the rod One end of the body 22 is movably connected to the head piece 23, and the other end of the rod body 22 One end passes through one of the first through holes 100 to accommodate the component 20 and is connected to the magnetic component 21, and the elastic member 24 surrounds the periphery of the rod 22, and the two ends of the elastic member 24 are respectively attached to the head member 23 and the first The surface 10, the magnetic component 21 is movably moved in the open slot 120 to allow the magnetic assembly 21 to be attracted or disengaged from a tie bar of a machine table, while the reinforcement portion 202 abuts or disengages from the tie bar with the magnetic assembly 21.

Furthermore, the magnetic component 21 is provided with a first through hole 210. The top of the accommodating component 20 is provided with a second through hole 204. The top end of the accommodating component 20 has a shoulder 206. One end of the shank 22 passes through the first through hole 210. The second through hole 204 is screwed together with the head piece 23. The other end of the rod body 22 is provided with a rod head 220. The rod head 220 is abutted against the shoulder 206, and the rod body 22 is accommodated. The portions that are joined at the top of the assembly 20 are secured together.

In addition, the first body 10 and the second surface 12 are adjacent to each other, and at least one side of the first surface 10 and the second surface 12 is disposed along the accommodating component 20 in the upward and downward movement direction of the opening groove 120. The position of the first guiding portion 1206 is provided with a second guiding portion. The first guiding portion and the second guiding portion are coupled to each other, so that the accommodating assembly can stably move up and down in the opening groove.

In one embodiment of the present invention, the strain gauge unit 3 includes a strain gauge 30, an electronic component 32, a cover 34 and a pivot member 36. The strain gauge 30 is disposed in the groove 122 of the seat body 1 , and one side of the strain gauge 30 is aligned with the second surface of the seat body 10 . When the magnetic component 21 is attracted to the tie rod, the strain gauge 30 will be attached to the surface of the tie rod to measure the strain amount. The electronic component 32 is disposed in the accommodating groove 102, and the accommodating groove 102 is covered by the cover 34. The electronic component 32 is connected to the strain gauge 30 through the hole 19 between the accommodating groove 102 and the groove 122 for receiving the strain gauge. 30 sensed strain signals. The pivoting member 36 is disposed at a position corresponding to the connecting hole 140 The pivoting member 36 further has a sleeve hole 360 for communicating with the connecting hole 140. The sleeve hole 360 can be inserted into the signal line to connect the electronic component 32 to transmit the strain signal to the computing device through the signal line. Further, the clamping force of the templates 1 and 2 is calculated by the arithmetic device according to the strain signal of each of the tie bars on which the strain sensing device is mounted. In other words, on the machine table, a pair of strain sensing devices are used to symmetrically set the tie rods adsorbed on the machine such as the injection molding machine to perform the sensing of the strain amount.

Furthermore, the manner in which the strain sensing device is mounted on the tie rod is as follows. The user presses the head member 23 toward the seat body 1 to drive the accommodating assembly 20 to move toward the tie rod via the rod body 22, The magnetic component 21 is attracted to the tie rod. At this time, the elastic member 24 is compressed by the extrusion of the head member 23, and at the same time, the reinforcement portion 202 abuts against the tie rod, thereby increasing the stability of the base body connection to the tie rod. Sex. After the strain sensing operation is completed, the head member 23 only needs to be pulled in the opposite direction of the tie rod, so that the rod body 22 drives the accommodating assembly 20 to move in the direction of the accommodating groove 102, so that the magnetic component 21 is detached from the tie rod. . Further, the head member 23 is movably rotated relative to the rod body 22 to adjust the pressure exerted by the elastic member 24 on the seat body 1.

As shown in the fifth embodiment, when the magnetic component 21 is attracted to the tie bar, the user can use the two clamping ends 50 provided at one end of the horizontal measuring tool 5 to be respectively inserted into one of the head members 23. In the slot 231, at the same time, the user measures the level of the seat 1 on the tie rod by the horizontal portion 52 provided at the other end of the body, and additionally adjusts the elastic member 24 applied to the seat body 1 through the rotating head member 23. Pressure, in order to adjust the level of the seat 1 on the tie rod, thereby improving the accuracy of the strain sensing.

In summary, due to the structural design changes of the seat body, the accommodating component and the magnetic component, the overall volume of the creation is reduced, and the assembly is more convenient, thereby saving assembly time and reducing production cost.

Looking at the above, it can be seen that under the previous technology, this creation has indeed achieved the desired effect, and it is not easy for people who are familiar with the art to think about it. Moreover, this creation has not been disclosed before the application, and it has Progressive and practical, it has already met the application requirements of the patent, and has filed a patent application according to law. You are requested to approve the application for the creation of this patent to encourage creation.

The embodiments described above are only for explaining the technical idea and characteristics of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement them according to the scope of the patent. That is, the equivalent changes or modifications made by the people in accordance with the spirit revealed by this creation should still be covered by the scope of the patent of this creation.

1‧‧‧ body

10‧‧‧ first surface

120‧‧‧Open slot

14‧‧‧ first side

20‧‧‧ accommodating components

202‧‧‧Reinforcement Department

23‧‧‧ headpiece

231‧‧‧ slot

24‧‧‧Flexible parts

36‧‧‧ pivotal parts

Claims (10)

A strain sensing device includes: a body having a first surface and a second surface; the first surface is provided with at least one first through hole, and the second surface is provided with at least An opening slot and a recess, the first through hole penetrating the opening slot; a locking unit comprising: a head piece; a magnetic component; a receiving component, the receiving component is movably disposed at the opening The accommodating component is provided with a reinforcing portion on a side away from the seat body, the accommodating component houses the magnetic component, and the accommodating component moves together with the magnetic component to move in the open slot And causing the magnetic component to adsorb or disengage one of the tie bars of the machine, and the reinforcing portion abuts or disengages from the tie bar at the same time; a rod body, one end of the rod body is movably connected to the head piece, The other end of the rod passes through the first through hole to the accommodating assembly and connects the magnetic component; an elastic member surrounds the rod body, and the two ends of the elastic member are respectively abutted The head piece and the first surface; a strain gauge unit At least one strain gauge is disposed, the strain gauge is disposed in the groove, and one surface of the strain gauge is tangent to the second surface, and the strain gauge is attached to the tie rod when the magnetic component is adsorbed to the tie rod Surface to sense the strain. The strain sensing device of claim 1, wherein the magnetic component is provided with a first through hole, a top inner edge of the accommodating component is provided with a shoulder, and the other end of the shank is provided with a head, the head The portion is abutted against the shoulder, and the portion of the rod that is in contact with the top of the accommodating assembly is fixedly coupled, and one end of the rod is movably coupled to the head member, such that When the head member is rotated to move the head member up and down, the pressure exerted on the seat by the elastic member can be adjusted. The strain sensing device of claim 1, wherein the seat body further has a receiving groove on the first surface, and a hole is formed between the receiving groove and the groove, and the receiving groove provides a setting. The strain gauge unit is provided with an electronic component through which the electronic component is connected to the strain gauge. The strain sensing device of claim 3, wherein the strain gauge unit further comprises: a cover body covering the receiving groove of the base body; and a pivoting member connected to the seat The first side surface adjacent to the first surface and the second surface are provided with a connecting hole penetrating the receiving groove, and the pivoting member is provided with a hole for communicating with the connecting hole. A strain sensing device according to claim 1, wherein the peripheral surface of the head member has an inwardly recessed slot which is provided for use by one of the end measuring portions of a horizontal measuring tool. The strain sensing device of claim 1, wherein the seat system has a rectangular shape. The strain sensing device of claim 1, wherein the head member comprises a through hole, and one end of the rod is threaded through the through hole, and the head member is movably movable relative to the rod. The strain sensing device of claim 1, wherein the seat body is provided with a first one of the first surface and the second surface adjacent to each other along a direction in which the receiving component moves up and down in the opening slot. a guiding portion, the receiving component is provided with a second guiding portion at a position opposite to the first guiding portion, and the first guiding portion and the second guiding portion are coupled to each other to make the receiving portion The assembly moves up and down within the open slot by the mutual engagement of the first guiding portion and the second guiding portion. The strain sensing device of claim 1, wherein the bottom of the reinforcing portion is at the same level as the bottom of the magnetic component. The strain sensing device of claim 1, wherein the magnetic component is provided with a first through hole, a top end of the accommodating component is provided with a second through hole, and a top end of the accommodating component has a shoulder, and one end of the shank passes The first through hole is screwed to the head piece through the second through hole, and the other end of the rod body is provided with a rod head, the rod head is abutted against the shoulder, and the rod is The portion of the body that is in contact with the top of the accommodating assembly is fixed together, and one end of the rod is movably coupled to the head member.