Sensor clamp

Abstract

The utility model discloses a sensor clamp, and relates to the field of sensor clamps. The positioning through hole is formed in the frame, and the sensor is detachably fixed through a bolt; the square clamping frame is fixed on the frame through a bolt and is clamped on a vertical rod of the equipment; the number of the clamping assemblies is two, and the two clamping assemblies are rotatably installed in the square clamping frame; the extrusion device is mounted on the square clamping frame and is used for extruding a vertical rod of the equipment; a magnetic assembly; according to the utility model, the clamping assembly and the extrusion device are arranged in a matched manner to clamp the equipment vertical rod and fix the clamp, and meanwhile, the bolt is prevented from participating in clamping, so that the influence on the fixation of the clamp and the sensor caused by the loosening of the bolt in the later period is avoided, and meanwhile, the clamping force of the clamping assembly and the extrusion device is provided by the magnetic assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of sensor fixtures, and particularly relates to a sensor fixture. Background Art

[0002] A sensor is a high-precision component that can be used for detecting information such as displacement, speed, force, and acceleration. Sensor components are often made of multiple materials through multiple processes. Ultimately, the quality of the welded sensor directly affects the system accuracy and technical parameters of the entire sensor. Therefore, corresponding positioning tooling fixtures are required to accurately position and fix the sensor.

[0003] However, existing sensor fixtures are usually fixed by bolts. Since the sensor fixture vibrates with the equipment during use, the bolts will loosen under long-term vibration, resulting in the loosening of the fixation of the sensor fixture. Summary of the Utility Model

[0004] The utility model provides a sensor fixture to solve the problem that existing sensor fixtures are usually fixed by bolts. Since the sensor fixture vibrates with the equipment during use, the bolts will loosen under long-term vibration, resulting in the loosening of the fixation of the sensor fixture.

[0005] The technical problems solved by the utility model are realized by the following technical solutions:

[0006] A sensor fixture, comprising:

[0007] A frame;

[0008] A positioning through hole, which is opened on the frame and the sensor is detachably fixed by bolts;

[0009] A square clamping frame, which is fixed on the frame by bolts and clamps on the vertical rod of the equipment;

[0010] Clamping components, two of which are rotatably installed in the square clamping frame respectively;

[0011] An extrusion device, which is installed on the square clamping frame and extrudes the vertical rod of the equipment;

[0012] A magnetic force component, which is installed inside the extrusion device and adjusts the extrusion force of the extrusion device and the clamping force of the clamping components by rotation.

[0013] Optionally, the square clamping frame includes:

[0014] A clamping frame main body, which is fixed on the frame by bolts;

[0015] An installation cavity, which is opened inside the main body of the clamping bracket;

[0016] Extension holes, there are two extension holes, both are opened on the main body of the clamping bracket and communicate with the installation cavity;

[0017] Positioning columns, there are two positioning columns and they are respectively located on both sides inside the installation cavity.

[0018] Optionally, the clamping assembly includes:

[0019] A rotating arm, which is rotatably sleeved outside the positioning column;

[0020] A first extrusion head, which is bonded to the rotating arm and passes through the extension hole to contact the vertical rod of the device;

[0021] A torsion spring, the two ends of which are respectively fixedly connected to the rotating arm and the positioning column.

[0022] Optionally, the extrusion device includes:

[0023] A guide cylinder, which is fixed on the main body of the clamping bracket and divides the installation cavity into two parts;

[0024] A second extrusion head, which is slidably installed inside the guide cylinder and is used for clamping the vertical rod of the device;

[0025] A first strong magnet, which is fixed at one end of the second extrusion head away from the vertical rod of the device;

[0026] A limit ring, which is detachably installed at the opening of the guide cylinder.

[0027] Optionally, the magnetic force assembly includes:

[0028] A first magnetic force assembly, which is detachably fixed inside the guide cylinder;

[0029] A second magnetic force assembly, which is rotatably installed inside the guide cylinder;

[0030] A partition board, which is fixed inside the guide cylinder and is located between the first magnetic force assembly and the second magnetic force assembly;

[0031] A rotary key, which is fixed on the second magnetic force assembly and extends outside the guide cylinder through the limit ring.

[0032] Optionally, both the first magnetic force assembly and the second magnetic force assembly include:

[0033] A second frame, which is located inside the guide cylinder;

[0034] The second strongest magnet is embedded inside the second frame and rotates with the second frame.

[0035] Optionally, it further includes:

[0036] A pull rope, with both ends of the pull rope fixedly connected to the rotating arm and the second extrusion head respectively, forming a structure where the rotating arm and the second extrusion head move simultaneously through the pull rope.

[0037] The beneficial effects of the present utility model are:

[0038] Through the cooperative setting of the clamping assembly and the extrusion device, the vertical rod of the device is clamped, and the fixture is fixed. At the same time, the participation of bolts in clamping is avoided, thus preventing the loosening of bolts in the later stage from affecting the fixation of the fixture and the sensor. Meanwhile, the clamping force of the clamping assembly and the extrusion device is provided by the magnetic component, and the influence of vibration on it during use is relatively small, and it can still maintain the normal fixation of the fixture after long-term use. Description of the Drawings

[0039] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0040] Figure 1 It is the main view schematic diagram of the structure of the present utility model;

[0041] Figure 2 It is the internal schematic diagram of the main structure of the clamping frame of the present utility model;

[0042] Figure 3 It is the schematic diagram of the structure of the clamping assembly of the present utility model;

[0043] Figure 4 For the present utility model Figure 3 The enlarged schematic diagram of the structure at A in;

[0044] Figure 5 It is the schematic diagram of the scroll spring structure of the present utility model.

[0045] In the figure: 100, frame;

[0046] 200, positioning through hole;

[0047] 300, square clamping frame; 310, clamping frame main body; 320, installation cavity; 330, extension hole; 340, positioning column;

[0048] 400, clamping assembly; 410, rotating arm; 420, first extrusion head; 430, coil spring;

[0049] 500, extrusion device; 510, guiding cylinder; 520, second extrusion head; 530, first strong magnet; 540, limiting ring;

[0050] 600, magnetic force assembly; 610, first magnetic force assembly; 620, second magnetic force assembly; 621, second frame; 622, second strong magnet; 630, dividing plate; 640, rotating key;

[0051] 700, pulling rope. Detailed implementation mode

[0052] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below with reference to specific illustrations.

[0053] Refer to Figures 1-5 A sensor fixture shown as follows, including:

[0054] Frame 100;

[0055] Positioning through hole 200, which is opened on frame 100 and the sensor can be detachably fixed by bolts;

[0056] Square clamping frame 300, which is fixed on frame 100 by bolts and clamps on the vertical rod of the device;

[0057] Clamping assembly 400, two clamping assemblies 400 are provided and are respectively rotatably installed in square clamping frame 300;

[0058] Extrusion device 500, which is installed on square clamping frame 300 and extrudes the vertical rod of the device;

[0059] Magnetic force assembly 600, which is installed inside extrusion device 500 and adjusts the extrusion force of extrusion device 500 and the clamping force of clamping assembly 400 by rotation.

[0060] Among them, the vertical rod of the device is clamped through the cooperation of clamping assembly 400 and extrusion device 500, and the fixture is fixed. At the same time, the participation of bolts in clamping is avoided, so as to avoid the influence of the loosening of bolts in the later stage on the fixation of the fixture and the sensor. At the same time, the clamping forces of clamping assembly 400 and extrusion device 500 are provided by magnetic force assembly 600, and the influence of vibration on it during use is relatively small, and the normal fixation of the fixture can still be maintained after long-term use;

[0061] Among them, it is adapted to the sensor through the positioning through hole 200, and the sensor is installed and fixed. At the same time, a groove is provided on the inner wall of the positioning through hole 200 to facilitate the clamping of the sensor.

[0062] In some embodiments of the present invention, referring to Figure 2 and Figure 3 as shown, the square clamping frame 300 includes:

[0063] A clamping frame main body 310, and the clamping frame main body 310 is fixed on the frame 100 by bolts;

[0064] An installation cavity 320, and the installation cavity 320 is opened inside the clamping frame main body 310;

[0065] Two extension holes 330 are provided, both of which are opened on the clamping frame main body 310 and communicate with the installation cavity 320;

[0066] Two positioning columns 340 are provided and are respectively located on both sides inside the installation cavity 320.

[0067] Among them, through the cooperation of the clamping frame main body 310 and the installation cavity 320, a space is provided for the installation of the clamping assembly 400 and the extrusion device 500, ensuring the normal adjustment of the clamping assembly 400 and the extrusion device 500;

[0068] Among them, through the setting of the extension holes 330, the clamping assembly 400 can normally extend to the outside of the installation cavity 320. At the same time, the cooperation setting of the positioning columns 340 can ensure the normal installation and rotation of the clamping assembly 400, and at the same time position the rotation center of the clamping assembly 400.

[0069] In some embodiments of the present invention, referring to Figure 2 and Figure 5 as shown, the clamping assembly 400 includes:

[0070] A rotating arm 410, and the rotating arm 410 is rotatably sleeved outside the positioning column 340;

[0071] A first extrusion head 420, and the first extrusion head 420 is bonded to the rotating arm 410 and passes through the extension hole 330 to contact the equipment vertical rod;

[0072] A coil spring 430, and both ends of the coil spring 430 are fixedly connected to the rotating arm 410 and the positioning column 340 respectively.

[0073] Among them, the rotation arm 410 is provided to drive the first extrusion head 420 to rotate, so that the first extrusion head 420 passes through the extension hole 330 under the drive of the rotation arm 410 to clamp and fix the equipment vertical rod. At the same time, it can ignore the influence of the size and model of the equipment vertical rod, and still maintain the fixation of the fixture when the bolt is loose, avoiding the fixture from falling or deviating in position when the bolt is loose;

[0074] Among them, the setting of the coil spring 430 drives the rotation arm 410 and the first extrusion head 420 to quickly reset after the applied extrusion force disappears, releasing the clamping and fixing of the equipment vertical rod.

[0075] In some embodiments of the present invention, referring to Figure 4 as shown, the extrusion device 500 includes:

[0076] A guide cylinder 510, which is fixed on the clamping frame main body 310 and divides the installation cavity 320 into two parts;

[0077] A second extrusion head 520, which is slidably installed inside the guide cylinder 510 and is used to clamp the equipment vertical rod;

[0078] A first strong magnet 530, which is fixed at one end of the second extrusion head 520 away from the equipment vertical rod;

[0079] A limiting ring 540, which is detachably installed at the opening of the guide cylinder 510.

[0080] Among them, the guide cylinder 510 is detachably fixed on the clamping frame main body 310 and guides the sliding of the second extrusion head 520, avoiding the second extrusion head 520 from shifting under the action of the repulsive force;

[0081] Among them, the first strong magnet 530 repels the magnetic force assembly 600, and drives the second extrusion head 520 to clamp the equipment vertical rod under the action of the repulsive force. At the same time, it can ignore the influence of the size and model of the equipment vertical rod, and still maintain the fixation of the fixture when the bolt is loose, avoiding the fixture from falling or deviating in position when the bolt is loose;

[0082] Among them, the position of the magnetic force assembly 600 is restricted by the setting of the limiting ring 540, avoiding the magnetic force assembly 600 from detaching from the guide cylinder 510 under the action of external force.

[0083] In some embodiments of the present invention, referring to Figure 3 and Figure 4 as shown, the magnetic force assembly 600 includes:

[0084] A first magnetic force assembly 610, which is detachably fixed inside the guide cylinder 510;

[0085] The second magnetic component 620 is rotatably installed inside the guiding cylinder 510;

[0086] The partition plate 630 is fixed inside the guiding cylinder 510 and is located between the first magnetic component 610 and the second magnetic component 620;

[0087] The rotating key 640 is fixed on the second magnetic component 620 and extends through the limiting ring 540 to the outside of the guiding cylinder 510.

[0088] Among them, the setting of the partition plate 630 prevents the first magnetic component 610 and the second magnetic component 620 from affecting and wearing each other under the action of friction when rotating relative to each other;

[0089] Among them, the rotating key 640 drives the second magnetic component 620 to rotate. At the same time, there is a large frictional force between the rotating key 640 and the inner wall of the limiting ring 540, and it will not rotate and adjust easily under the action of external forces.

[0090] In some embodiments of the present invention, referring to Figure 4 as shown, both the first magnetic component 610 and the second magnetic component 620 include:

[0091] The second frame 621 is located inside the guiding cylinder 510;

[0092] The second strong magnet 622 is embedded inside the second frame 621 and rotates with the second frame 621.

[0093] Among them, the setting of the second frame 621 can ensure the normal installation and fixation of the second strong magnet 622 and ensure the normal rotation of the second strong magnet 622;

[0094] Among them, when the magnetic poles of the permanent magnetic chuck are in the same direction state, the magnetic lines of force come out from the N pole of the magnet, pass through the magnetic yoke, pass through the ferromagnetic workpiece, and then return to the magnetic yoke and enter the S pole of the magnet. In this way, the first strong magnet 530 can be firmly attracted to the working pole surface of the second strong magnet 622. When the magnetic poles are in different directions, the magnetic lines of force do not reach the working pole surface of the second strong magnet 622, but form a closed loop of the magnetic circuit inside the second strong magnet 622, and almost no magnetic lines of force come out from the working pole surface of the second strong magnet 622. Therefore, no suction force is generated on the workpiece, and unloading can be achieved smoothly.

[0095] In some embodiments of the present invention, referring to Figures 2-4 as shown, it further includes:

[0096] The pull rope 700 has its two ends fixedly connected to the rotating arm 410 and the second extrusion head 520 respectively, forming a structure in which the rotating arm 410 and the second extrusion head 520 move simultaneously through the pull rope 700.

[0097] Among them, the setting of the pull rope 700 enables the rotating arm 410 and the second extrusion head 520 to move synchronously, realizing the synchronous operation of the rotating arm 410 and the second extrusion head 520.

[0098] The working method of the present utility model:

[0099] Pass the sensor through the positioning through hole 200 and clamp it, and then reinforce it by bolts or interference fit. When the bolts are loose, it will not cause the sensor to shift, and it can still ensure the normal use of the sensor;

[0100] The main body 310 of the clamping bracket is divided into upper and lower parts, and they are spliced and fixed by interference fit, and the main body 310 of the clamping bracket is in interference fit together through the wedge block;

[0101] When fixing the fixture, pass the vertical rod of the device through the space between the main body 310 of the clamping bracket and the frame 100, and then rotate the rotary key 640, so that the rotary key 640 drives the second magnetic assembly 620 to rotate, making the magnetic poles of the two second strong magnets 622 in the same direction. The repulsive force between the second magnetic assembly 620 and the first magnetic assembly 610 will increase, and the first strong magnet 530 will drive the second extrusion head 520 to move under the drive of the repulsive force to squeeze and fix the vertical rod of the device. At the same time, the second extrusion head 520 will drive the rotating arm 410 to rotate under the action of the pull rope 700, so that the rotating arm 410 drives the first extrusion head 420 to clamp and fix the vertical rod of the device, and drives the spiral spring 430 to store energy;

[0102] When releasing the fixation, rotate the rotary key 640 to drive the second magnetic assembly 620 to rotate, making the magnetic poles of the two second strong magnets 622 opposite. The spiral spring 430 will drive the second extrusion head 520 and the first extrusion head 420 to reset through the rotating arm 410 and the pull rope 700, releasing the fixation of the vertical rod of the device.

[0103] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A sensor fixture, characterized in that, Including: Frame (100); Positioning through-hole (200), which is opened on the frame (100) and the sensor is detachably fixed by bolts; Square clamping bracket (300), which is fixed on the frame (100) by bolts and clamps on the vertical rod of the device; Clamping assembly (400), there are two clamping assemblies (400), which are respectively rotatably installed in the square clamping bracket (300); Extrusion device (500), which is installed on the square clamping bracket (300) and extrudes the vertical rod of the device; Magnetic force assembly (600), which is installed inside the extrusion device (500) and adjusts the extrusion force of the extrusion device (500) and the clamping force of the clamping assembly (400) by rotation.

2. A sensor fixture according to claim 1, wherein: The square clamping bracket (300) includes: Clamping bracket main body (310), which is fixed on the frame (100) by bolts; Installation cavity (320), which is opened inside the clamping bracket main body (310); Extension holes (330), there are two extension holes (330), both of which are opened on the clamping bracket main body (310) and communicate with the installation cavity (320); Positioning posts (340), there are two positioning posts (340), and they are respectively located on both sides inside the installation cavity (320).

3. A sensor fixture according to claim 1, wherein: The clamping assembly (400) includes: Rotating arm (410), which is rotatably sleeved outside the positioning post (340); First extrusion head (420), which is bonded on the rotating arm (410) and passes through the extension hole (330) to contact the vertical rod of the device; Volute spring (430), both ends of the volute spring (430) are fixedly connected to the rotating arm (410) and the positioning post (340) respectively.

4. A sensor fixture according to claim 1, wherein: The extrusion device (500) includes: Guide cylinder (510), which is fixed on the clamping bracket main body (310) and divides the installation cavity (320) into two parts; Second extrusion head (520), which is slidably installed inside the guide cylinder (510) and is used to clamp the vertical rod of the device; First strong magnet (530), which is fixed at the end of the second extrusion head (520) away from the vertical rod of the device; Limit ring (540), which is detachably installed at the opening of the guide cylinder (510).

5. A sensor fixture according to claim 1, wherein: The magnetic force assembly (600) includes: First magnetic force assembly (610), which is detachably fixed inside the guide cylinder (510); The second magnetic component (620), and the second magnetic component (620) is rotatably installed inside the guiding cylinder (510); The partition plate (630), and the partition plate (630) is fixed inside the guiding cylinder (510) and is located between the first magnetic component (610) and the second magnetic component (620); The rotary key (640), and the rotary key (640) is fixed on the second magnetic component (620) and extends outside the guiding cylinder (510) through the limiting ring (540).

6. A sensor fixture according to claim 5, wherein: Both the first magnetic component (610) and the second magnetic component (620) include: The second frame (621), and the second frame (621) is located inside the guiding cylinder (510); The second strong magnet (622), and the second strong magnet (622) is embedded inside the second frame (621) and rotates following the second frame (621).

7. A sensor fixture according to claim 1, wherein: It further includes: The pulling rope (700), and both ends of the pulling rope (700) are respectively fixedly connected to the rotating arm (410) and the second extrusion head (520), forming a structure in which the rotating arm (410) and the second extrusion head (520) move simultaneously through the pulling rope (700).

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