A new type of strain six-axis force sensor

Abstract

The utility model relates to six axial force sensor technical field, concretely is a kind of novel strain six axial force sensor, including six axial force sensor main body and shell, the fixed connection of shell and six axial force sensor main body, the vent is opened on the shell, and filter mechanism is equipped on the vent. By setting filter mechanism, utilize multiple groups of vent to six axial force sensor main body is ventilated and radiates heat, utilize dust screen to avoid dust via vent into shell and cause influence to internal structure, when dust screen is attached more impurity and influences ventilation, can rotate torus, push block can extrude and push slider upwards, to further drive plug rod and separate from insertion hole upwards, and compress first spring, at this moment, multiple groups of dust screen can be quickly disassembled and cleaned or replaced.

Description

Technical Field

[0001] This utility model relates to the field of six-axis force sensor technology, and in particular to a novel strain-type six-axis force sensor. Background Technology

[0002] A strain gauge six-axis force sensor is a high-precision force control component that can simultaneously measure force and torque in three directions. Its core principle is to convert mechanical deformation into electrical signals through a strain detection system.

[0003] Existing technologies, such as Chinese Patent Publication No. CN217586130U, disclose a six-axis force sensor, including a force-bearing block and an elastic body arranged coaxially in sequence. The elastic body includes an outer ring, a middle platform, and a crossbeam. The middle platform is located in the center of the outer ring. One end of the crossbeam is connected to the inner wall of the outer ring, and the other end is connected to the side of the middle platform. Strain gauges are attached to the crossbeam, and a force transmission hole is centrally located on the middle platform. The middle platform is fixedly connected to the force-bearing block, which has a protruding force transmission element centrally located, adapted to the force transmission hole. This application enables the six-axis force sensor to transmit force through shear force and pressure, resulting in the transmitted force being centrally located on the crossbeam, thus reducing coupling errors during force transmission. However, this invention suffers from component stacking and a lack of cooling and heat dissipation devices. During prolonged high-power operation, heat easily accumulates, leading to accelerated aging of the device and potentially affecting its detection accuracy and stability. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing six-axis force sensors are not convenient for internal ventilation and heat dissipation, and to propose a new strain-type six-axis force sensor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel strain gauge six-axis force sensor, comprising a six-axis force sensor body and a housing, wherein the housing is fixedly connected to the six-axis force sensor body, and a ventilation opening is provided on the housing, wherein a filter mechanism is provided on the ventilation opening; The filtration mechanism includes a dustproof mesh slidably connected to a vent. A limit plate is fixedly connected to the vent. A rod is slidably connected to the outer shell. A corresponding insertion hole is provided on the dustproof mesh. A slider is fixedly connected to the rod. A first inclined surface is provided at one end of the slider. A ring is fitted on the surface of the outer shell. A push block is fixedly connected to the surface of the ring. A second inclined surface is provided on the push block. An installation ring is fixedly connected to the outer shell. One end of a first spring is fixedly connected to the installation ring. The other end of the first spring is fixedly connected to the slider.

[0006] Optionally, the first spring is sleeved on the insert rod, and the insert rod is slidably connected to the mounting ring.

[0007] Optionally, multiple vents and filter mechanisms are provided, evenly distributed around the perimeter of the housing.

[0008] Optionally, the surface of the ring is provided with anti-slip textures, and the number of anti-slip textures is multiple and evenly distributed along the ring.

[0009] Optionally, the outer casing is further provided with an auxiliary mechanism, which includes a fixing ring, the fixing ring being fixedly connected to the outer casing, a positioning rod being slidably connected to the fixing ring, the positioning rod being inserted into a circular ring, the circular ring having a positioning hole corresponding to the positioning rod, and at least one set of positioning rods being evenly distributed around the outer casing.

[0010] Optionally, the auxiliary mechanism further includes a pull ring, which is fixedly connected to the positioning rod and slidably connected to the outer casing. A second spring is provided between the pull ring and the fixed ring, with both ends of the second spring fixedly connected to the pull ring and the fixed ring, respectively.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: By incorporating a filtration mechanism and utilizing multiple vents, the six-axis force sensor body is ventilated and cooled. Dust filters prevent dust from entering the housing through the vents and affecting the internal structure. When the dust filters accumulate excessive impurities that obstruct ventilation, rotating the ring causes the push block to press and push the slider upwards, thereby causing the insertion rod to disengage from the insertion hole and press the first spring. This allows for quick disassembly, cleaning, or replacement of the multiple dust filters. During installation, the dust filter is slid along the vent until it abuts against the limit plate. The ring is then released, and the insertion rod returns to its original position under the return of the first spring, allowing it to be inserted into the insertion hole to secure the dust filter. This filtration mechanism enables quick and effortless installation and removal of multiple dust filters for cleaning or replacement, ensuring good ventilation, cooling, and dust prevention, thus significantly improving the equipment's convenience.

[0012] By setting up an auxiliary mechanism, before rotating the ring, the pull ring must be pulled to disengage the positioning rod from the positioning hole and tighten the second spring. After releasing the ring, the pull ring is released again. Under the rebound action of the second spring, the positioning rod returns to its original position and locks into the positioning hole to fix the ring. This can prevent the ring from rotating due to external force and causing the dustproof net to fall off. By setting up an auxiliary mechanism, the ring can be fixed to prevent it from rotating randomly, thus preventing the dustproof net from accidentally falling off due to external force. This effectively improves the stability of the equipment. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an exploded view of the structure of this utility model; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This utility model Figure 2 Enlarged structural diagram at point B; Figure 5 This utility model Figure 2 Enlarged structural diagram at point C; Figure 6 This is a schematic diagram of the insert rod and slider structure of this utility model.

[0014] Legend: 1. Six-axis force sensor body; 2. Housing; 3. Ventilation port; 4. Filter mechanism; 401. Dustproof net; 402. Insertion hole; 403. Insertion rod; 404. Slider; 405. Ring; 406. Push block; 407. Inclined surface; 408. First spring; 409. Mounting ring; 410. Anti-slip texture; 411. Limiting plate; 412. Second inclined surface; 5. Auxiliary mechanism; 51. Fixing ring; 52. Positioning rod; 53. Positioning hole; 54. Pull ring; 55. Second spring. Detailed Implementation

[0015] Please see Figures 1 to 6 This utility model provides a technical solution: a novel strain gauge six-axis force sensor, comprising a six-axis force sensor body 1 and a housing 2, the housing 2 being fixedly connected to the six-axis force sensor body 1, a ventilation opening 3 on the housing 2, and a filter mechanism 4 on the ventilation opening 3; the filter mechanism 4 includes a dustproof net 401, the dustproof net 401 being slidably connected to the ventilation opening 3, a limit plate 411 being fixedly connected to the ventilation opening 3, and a rod 403 being slidably connected to the housing 2, the dustproof net 401 having a connection point with the rod 403. The corresponding insertion hole 402 is 03. The insertion rod 403 is fixedly connected to the slider 404. One end of the slider 404 has a first inclined surface 407. The surface of the outer shell 2 is fitted with a ring 405. The surface of the ring 405 is fixedly connected to the push block 406. The push block 406 has a second inclined surface 412 corresponding to the first inclined surface 407. The outer shell 2 is fixedly connected to the mounting ring 409. One end of the mounting ring 409 is fixedly connected to the first spring 408. The other end of the first spring 408 is fixedly connected to the slider 404.

[0016] The dustproof net 401 is provided to prevent dust and impurities from entering the outer casing 2 through the ventilation port 3 and affecting the internal structure. The insertion hole 402 and the insertion rod 403 are provided to fix the dustproof net 401 when the insertion rod 403 is inserted into the insertion hole 402, preventing it from moving at will. The purpose of providing the slider 404, ring 405, push block 406 and inclined surface 407 is that when the ring 405 is rotated, the push block 406 can squeeze and push the slider 404 upward under the action of the inclined surface 407, thereby driving the insertion rod 403 upward to disengage from the insertion hole 402, so as to remove the dustproof net 401. The first spring 408 is provided to make the insertion rod 403 lock into the insertion hole 402, and its rebound effect facilitates the reset of the insertion rod 403. The purpose of the limiting plate 411 is to position the dustproof net 401 when it is installed. Simply abutting the dustproof net 401 against the limiting plate 411 is considered as aligning the insertion rod 403 with the insertion hole 402.

[0017] Optionally, the first spring 408 is sleeved on the insert rod 403, and the insert rod 403 is slidably connected to the mounting ring 409.

[0018] Optionally, multiple vents 3 and filter mechanisms 4 are provided, evenly distributed around the outer casing 2.

[0019] Optionally, the surface of the ring 405 is provided with anti-slip textures 410, and the number of anti-slip textures 410 is multiple and evenly distributed along the ring 405.

[0020] Optionally, the outer casing 2 is also provided with an auxiliary mechanism 5. The auxiliary mechanism 5 includes a fixing ring 51, which is fixedly connected to the outer casing 2. The fixing ring 51 is slidably connected to a positioning rod 52, which is inserted into a circular ring 405. The circular ring 405 has a positioning hole 53 corresponding to the positioning rod 52. There is at least one set of positioning rods 52, which are evenly distributed around the outer casing 2.

[0021] The positioning rod 52 is designed to engage with the positioning hole 53, preventing the ring 405 from rotating arbitrarily when inserted into the hole 53. Multiple sets of positioning rods 52 and positioning holes 53 are provided to increase the overall structural stability. The pull ring 54 facilitates pulling the positioning rod 52 to disengage it from the positioning hole 53, allowing the ring 405 to rotate. The second spring 55 serves both to secure the positioning rod 52 to the positioning hole 53 and to facilitate its return to its original position using its springback action.

[0022] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel strain gauge six-axis force sensor, characterized in that, It includes a six-axis force sensor body (1) and a housing (2), the housing (2) being fixedly connected to the six-axis force sensor body (1), the housing (2) having a vent (3), and the vent (3) having a filter mechanism (4). The filter mechanism (4) includes a dustproof net (401), which is slidably connected to the vent (3). A limit plate (411) is fixedly connected to the vent (3). A rod (403) is slidably connected to the outer shell (2). A hole (402) corresponding to the rod (403) is opened on the dustproof net (401). A slider (404) is fixedly connected to the rod (403). A first inclined surface (402) is opened at one end of the slider (404). 7) A ring (405) is fitted on the surface of the outer shell (2). A push block (406) is fixedly connected to the surface of the ring (405). The push block (406) has a second inclined surface (412) corresponding to the first inclined surface (407). An installation ring (409) is fixedly connected to the outer shell (2). One end of a first spring (408) is fixedly connected to the installation ring (409). The other end of the first spring (408) is fixedly connected to the slider (404).

2. The novel strain gauge six-axis force sensor according to claim 1, characterized in that, The first spring (408) is sleeved on the insert rod (403), and the insert rod (403) is slidably connected to the mounting ring (409).

3. The novel strain gauge six-axis force sensor according to claim 1, characterized in that, The ventilation openings (3) and the filter mechanism (4) are provided in multiple ways and are evenly distributed around the outer shell (2).

4. A novel strain gauge six-axis force sensor according to claim 1, characterized in that, The surface of the ring (405) is provided with anti-slip textures (410), and the number of anti-slip textures (410) is multiple and evenly distributed along the ring (405).

5. A novel strain gauge six-axis force sensor according to claim 1, characterized in that, The outer shell (2) is also provided with an auxiliary mechanism (5). The auxiliary mechanism (5) includes a fixing ring (51), which is fixedly connected to the outer shell (2). The fixing ring (51) is slidably connected with a positioning rod (52). The positioning rod (52) is inserted into a circular ring (405). The circular ring (405) has a positioning hole (53) corresponding to the positioning rod (52). There is at least one set of positioning rods (52), which are evenly distributed around the outer shell (2).

6. A novel strain gauge six-axis force sensor according to claim 5, characterized in that, The auxiliary mechanism also includes a pull ring (54), which is fixedly connected to the positioning rod (52) and slidably connected to the outer shell (2). A second spring (55) is provided between the pull ring (54) and the fixed ring (51), and the two ends of the second spring (55) are fixedly connected to the pull ring (54) and the fixed ring (51) respectively.

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