CN215114465U - Automatic length measuring device - Google Patents

Abstract

The embodiment of the application provides an automatic length measuring device, which comprises a gantry lathe bed, a movable clamping device, a sensor fixing device and a supporting device, wherein the movable clamping device is slidably arranged at one end of the gantry lathe bed and comprises a clamping structure used for clamping a workpiece to be measured and a first position sensor used for detecting the position of one end of the workpiece to be measured; the sensor fixing device is arranged at the other end of the gantry lathe bed and is provided with a second position sensor used for detecting the position of the other end of the workpiece to be detected; the supporting device comprises a supporting platform and a centering mechanism, the supporting platform is arranged on the gantry lathe bed and used for supporting the workpiece to be measured to slide along the moving direction of the moving clamping device, and the centering mechanism is used for limiting the axial direction of the workpiece to be measured to be parallel to the moving direction of the moving clamping device. The embodiment of the application realizes the automatic detection function of the end parts of the workpieces to be detected with different lengths by reducing the relative position between the first position sensor and the second position sensor, and increases the feeding efficiency, thereby improving the processing efficiency.

Description

Automatic length measuring device

Technical Field

The utility model relates to a measuring device technical field especially relates to an automatic length measuring device.

Background

Along with the popularization of laser technology and the improvement of automation degree of workshops, a plurality of enterprises with pipe processing requirements often purchase laser cutting machines for cutting pipes. For cost reasons, some small-scale processing enterprises, when purchasing cutting machines, tend to choose a manually or semi-automatically fed cutting machine without a pipe length measuring device.

The cutting machine of the type is used, so that the cutting work of the subsequent cutting machine on the pipe is facilitated, the length of the pipe needs to be measured in advance in the feeding process, the workload of the existing mode for manually measuring the length of the pipe is large, the labor hour is consumed very much, and the processing efficiency of the pipe is reduced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an automatic length measuring device to solve the technical problem that the length of a workpiece to be measured is manually measured, and the processing efficiency of the workpiece to be measured is reduced.

The embodiment of the application provides an automatic length measuring device, which comprises a gantry lathe bed, a movable clamping device, a sensor fixing device and a supporting device, wherein the movable clamping device is slidably mounted at one end of the gantry lathe bed, the movable clamping device comprises a clamping structure for clamping a workpiece to be measured and a first position sensor for detecting the position of one end of the workpiece to be measured;

the sensor fixing device is arranged at the other end of the gantry lathe bed, and a second position sensor for detecting the position of the other end of the workpiece to be detected is arranged on the sensor fixing device;

the supporting device comprises a supporting platform and a centering mechanism, the supporting platform is arranged on the gantry lathe bed and used for supporting the workpiece to be measured to slide along the sliding direction of the movable clamping device, and the centering mechanism is used for limiting the axial direction of the workpiece to be measured to be parallel to the moving direction of the movable clamping device.

Optionally, the movable clamping device comprises a base which is slidably mounted on the gantry lathe bed, the clamping structure is arranged on the end surface of the base facing the sensor fixing device, a mounting bracket extending to the tail end of the clamping structure is arranged on one side of the base, and the first position sensor is arranged at the tail end of the mounting bracket.

Optionally, the clamping device has a fixed cavity into which the workpiece to be measured can be inserted, and the supporting device is further used for limiting the axis of the workpiece to be measured to be collinear with the axis of the fixed cavity.

Optionally, a mounting plate is further arranged on the sensor fixing device, and the second position sensor is adjustably mounted on the mounting plate.

Optionally, the mounting plate is provided with a plurality of fixing holes extending in a strip shape, the second position sensor is fixed to the mounting plate through a plurality of fixing pieces, and the fixing pieces can slide along the fixing holes and have damping.

Optionally, the sensor fixing device is movably mounted on the gantry bed.

Optionally, the number of the support platform and the centering mechanism is plural.

Optionally, the centering mechanism and the supporting platform are arranged on the gantry bed at a distance.

Optionally, the first position sensor and/or the second position sensor is a photosensor.

Optionally, the sensor fixing device has a through cavity through which the workpiece to be measured can pass.

The utility model provides an automatic length measuring device of embodiment's beneficial effect lies in:

the utility model provides an automatic length measuring device of embodiment, including longmen lathe bed, remove clamping device, sensor fixing device and strutting arrangement, when removing clamping device and remove to first position sensor and detect the one end tip of being surveyed the work piece, record first position, then remove clamping device and continue to remove and the centre gripping is surveyed the work piece, in the in-process that promotes to be surveyed the work piece and remove, strutting arrangement can guarantee to be surveyed the work piece axial slip, until the other end tip of being surveyed the work piece is detected by the second position sensor on the sensor fixing device, record the second position; because the initial positions of the first position sensor and the second position sensor are positioned at the two ends of the gantry lathe bed, when the workpiece to be detected is placed on the gantry lathe bed, the first position sensor and the second position sensor are not triggered, and the relative position between the first position sensor and the second position sensor is reduced, the automatic detection function of the end parts of the workpiece to be detected with different lengths can be realized, the feeding efficiency of the workpiece to be detected is increased, and the processing efficiency of the workpiece to be detected is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a front view of an automatic length measuring device according to an embodiment of the present invention;

FIG. 2 is a side view of the automatic length measuring device of FIG. 1;

FIG. 3 is a schematic view of the sensor fixture and gantry bed of FIG. 1;

FIG. 4 is a schematic view of the mounting plate of FIG. 3;

FIG. 5 is a schematic view of the mounting plate and second position sensor of FIG. 4;

FIG. 6 is another schematic view of the mounting plate and the second position sensor of FIG. 4.

Wherein, each reference mark in the figure is:

1-gantry lathe bed; 2-moving the clamping device; 21-a clamping structure; 211-a fixed cavity; 22-a first position sensor; 23-a base; 24-a mounting bracket; 3-a sensor fixation device; 31-a mounting plate; 311-a fixation hole; 32-a second position sensor; 321-mounting holes; 33-through cavity; 4-a support device; 41-a centering mechanism; 411-end face; 42-a support platform; 421-support bar.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to fig. 6, an automatic length measuring device according to an embodiment of the present invention will be described.

As shown in fig. 1, the automatic length measuring device in this embodiment includes a gantry bed 1, a movable clamping device 2, a sensor fixing device 3 and a supporting device 4, the movable clamping device 2 is slidably mounted at one end of the gantry bed 1, the movable clamping device 2 includes a clamping structure 21 for clamping a workpiece to be measured, and a first position sensor 22 for detecting an end position of the workpiece to be measured. The sensor fixing device 3 is arranged at the other end of the gantry lathe bed 1, and a second position sensor 32 for detecting the position of the other end of the workpiece to be detected is arranged on the sensor fixing device 3. The supporting device 4 comprises a centering mechanism 41 and a supporting platform 42 which are arranged on the gantry lathe bed 1, the supporting platform 42 is used for supporting the workpiece to be measured to slide along the moving direction of the movable clamping device 2, and the centering mechanism 41 is used for limiting the axial direction of the workpiece to be measured to be parallel to the moving direction of the movable clamping device 2.

Wherein, supporting platform 42 is connected with gantry lathe bed 1 through bracing piece 421, and the lift of supporting platform 42 is driven in the extension or the shortening of bracing piece 421, and then the height of adjustment by survey work piece bearing for the axis of survey work piece and the axis collineation of clamping structure 21. The centering mechanism 41 ensures that the axial direction of the workpiece to be measured is parallel to the moving direction of the moving clamping device 2, the centering mechanism 41 is provided with two inclined end surfaces 411, the workpiece to be measured slides to the bottom along the two inclined end surfaces 411 after being placed above the centering mechanism 41 so as to fix the workpiece to be measured, and therefore the direction can be ensured only by ensuring that the centering mechanism 41 is located on the moving axial line of the moving clamping device 2 and directly placing the workpiece to be measured on the centering mechanism 41. The centering mechanism 41 can also support the workpiece to be measured, and the centering mechanism 41 and the supporting platform 42 are adopted to support the workpiece to be measured, so that the direction of the workpiece to be measured in the feeding process is ensured. In this embodiment, the first position sensor 22 and the second position sensor 32 are connected to the controller, and the controller can receive signals transmitted by the first position sensor 22 and the second position sensor 32 and record the end positions of the workpiece to be measured, so as to calculate the length of the workpiece to be measured. The workpiece to be measured in this embodiment may be a pipe or other workpieces, and is not described herein again.

After the workpiece to be measured is placed on the supporting device 4 on the gantry lathe bed 1, the moving clamping device 2 slidably disposed at one end of the gantry lathe bed 1 moves towards one end of the gantry lathe bed 1, i.e. the first position sensor 22 on the moving clamping device 2 is driven to move towards the end of the workpiece to be measured, when the moving clamping device 2 moves to the position where the first position sensor 22 detects the end of the workpiece to be measured, the position where the first position sensor 22 is triggered at the moment is recorded as a first position S1 and the time t1 is recorded, then the clamping structure 21 on the moving clamping device 2 clamps one end of the workpiece to be measured, the workpiece to be measured continues to move and be clamped, during the process that the moving clamping device 2 pushes the workpiece to be measured to move, the supporting device 4 can ensure the axial sliding of the workpiece to be measured, the centering mechanism 41 limits the axial direction of the workpiece to be measured to be horizontal with the moving direction of the moving clamping device 2, until the other end of the workpiece is detected by the second position sensor 32 on the sensor fixing device 3, the position where the second position sensor 32 is triggered is recorded as the second position S2 and the time t2 is recorded, and the length L of the workpiece can be calculated according to the first position S1, the second position S2, and the recording times t1 and t 2.

For example, the positions of the sensor fixing device 3 and the second position sensor 32 are not changed, the controller needs to calculate the moving distance S3 of the movable clamping device 2 from the time t1 to the time t2, the length L of the workpiece to be measured is the relative distance between S2 and S1, and the moving distance S3 of the movable clamping device 2 from the time t1 to the time t2 is subtracted, which is the length L of the workpiece to be measured: and L is S2-S1-S3.

In summary, the initial positions of the first position sensor 22 and the second position sensor 32 are located at two ends of the feeding area (the gantry bed body 1), so that when the workpiece to be measured is placed in the feeding area, neither the first position sensor 22 nor the second position sensor 32 is triggered, the length of the workpiece to be measured can be measured by reducing the relative position between the first position sensor 22 and the second position sensor 32, the automatic detection function of the end portions of the workpiece to be measured with different lengths can be realized by changing the relative position between the two position sensors, the feeding efficiency of the workpiece to be measured is increased, and the processing efficiency of the workpiece to be measured is improved.

In addition, because the cutting end of the traditional cutting machine relies on the cutting head to carry out the end detection of the workpiece to be detected by a sensor, the feeding process can be set very slowly due to safety consideration, the processing efficiency of the workpiece to be detected is seriously reduced, and the end of the workpiece to be detected is detected by the first position sensor 22 and the second position sensor 32, so that the automatic length measuring device in the embodiment can also accurately position the clamping end and the cutting end of the workpiece to be detected automatically, and the processing efficiency of the workpiece to be detected is further improved.

Optionally, as shown in fig. 2, the mobile clamping device 2 in this embodiment may further include a base 23 slidably mounted on the gantry bed 1, an end surface of the base 23 facing the sensor fixing device 3 is provided with a clamping structure 21, one side of the base 23 is provided with a mounting bracket 24 extending to a terminal end of the clamping structure 21, and a terminal end of the mounting bracket 24 is provided with a first position sensor 22. During the process that the base 23 moves towards the sensor fixing device 3, the first position sensor 22 on the mounting bracket 24 detects one end of the workpiece to be measured, meanwhile, the clamping structure 21 touches and clamps the end of the workpiece to be measured, and the clamped workpiece continues to move towards the sensor fixing device 3 until the second position sensor 32 on the sensor fixing device 3 detects the other end of the workpiece to be measured. The first position sensor 22 is arranged at the tail end of the mounting bracket 24, so that the influence of the first position sensor 22 on the clamping operation when the clamping structure 21 clamps the workpiece to be tested can be avoided, and the loading safety and efficiency of the workpiece to be tested are improved. Wherein, need be according to clamping structure 21's centre gripping principle, correspond size and the structure that sets up installing support 24 to the end position that adapts to the workpiece under test detects and clamping structure 21's centre gripping degree of depth, guarantees the accuracy nature that first position sensor 22 detected the pipeline end.

Alternatively, as shown in fig. 1 and 2, in the automatic length measuring device of the present embodiment, the clamping structure 21 has a fixed cavity 211 into which the workpiece to be measured can be inserted, and the supporting device 4 is further used for limiting the axis of the workpiece to be measured to be collinear with the axis of the fixed cavity 211. The clamping structure 21 in this embodiment has a fixing cavity 211, and after one end of the workpiece to be measured is inserted into the fixing cavity 211, the clamping structure 21 contracts the fixing cavity 211 to fix the end of the workpiece to be measured, and the insertion depth of the workpiece to be measured needs to be adapted to the size of the mounting bracket 24.

Alternatively, as shown in fig. 1 and fig. 2, in the automatic length measuring device of the present embodiment, the number of the supporting platforms 42 and the centering mechanisms 41 is plural, that is, the gantry bed 1 includes a plurality of supporting platforms 42 and a plurality of centering mechanisms 41. The multiple supporting platforms 42 are arranged on the gantry lathe bed 1 to support the workpiece to be measured in multiple points, so that the axis of the workpiece to be measured is in the horizontal direction and is collinear with the axis of the fixed cavity 211, the inclination of the workpiece to be measured in the vertical direction is reduced, and the length measurement of the workpiece to be measured is influenced.

Optionally, as shown in fig. 1 and fig. 2, in the automatic length measuring device of this embodiment, the centering mechanism 41 and the supporting platform 42 are disposed on the gantry bed 1 at an interval, so as to further ensure that the axis of the workpiece to be measured is in the horizontal direction and is collinear with the axis of the fixed cavity 211, thereby reducing the inclination of the workpiece to be measured, and thus affecting the length measurement of the workpiece to be measured.

Optionally, as shown in fig. 3, in the automatic length measuring device of this embodiment, a mounting plate 31 is further disposed on the sensor fixing device 3, and the second position sensor 32 is adjustably mounted on the mounting plate 31. By adjusting the position of the second position sensor 32, the effective detection angle of the second position sensor 32 is adjusted to ensure that the second position sensor 32 can accurately detect the end position of the workpiece to be detected.

Alternatively, as shown in fig. 4 to 6, in the automatic length measuring device of the present embodiment, a plurality of fixing holes 311 extending in a strip shape are provided on the upper mounting plate 31 of the sensor fixing device 3, a plurality of mounting holes 321 are correspondingly provided on the second position sensor 32, and the second position sensor 32 is fixed to the mounting plate 31 by a plurality of fixing members configured to be slidable along the fixing holes 311 and having a damping structure. The fixing member passes through the mounting hole 321 and the corresponding fixing hole 311 to mount the second position sensor 32 on the mounting plate 31. After the fixing member slides along the fixing hole 311, the corresponding part of the second position sensor 32 is driven to move relative to the mounting plate 31, so that the local position of the second position sensor 32 is adjusted, and the fixing member after stopping sliding keeps in place through damping. As shown in fig. 5 and 6, by adjusting the positions of the plurality of fixing members relative to the corresponding fixing holes 311, the relative angles and positions between the entire mounting plate 31 and the second position sensor 32 (the angles of the second position sensor 32 are different in fig. 5 and 6) can be adjusted, so that the light is directed to the position of the workpiece to be measured, thereby ensuring that the second position sensor 32 can accurately detect the end position of the workpiece to be measured. The fixing piece can be realized by adopting structures such as bolts, rubber columns and the like.

Optionally, in the automatic length measuring device of this embodiment, the sensor fixing device 3 is movably installed on the gantry bed 1, that is, the sensor fixing device 3 is a moving structure and can be fixed at one end of the gantry bed 1 all the time, and also can move according to the need, when each workpiece to be measured is placed on the gantry bed 1, the movable clamping device 2 and the sensor fixing device 3 move to the workpiece to be measured at the same time, that is, the two position sensors move at the same time, so as to detect the end portions of the two ends of the workpiece to be measured, and further increase the detection speed. The moving clamping device 2 and the sensor fixing device 3 stop moving when detecting the end of the workpiece to be measured respectively, and record the current position of the first position S1 and the second position S2 when stopping, wherein the length L of the workpiece to be measured is the relative position between S2 and S1.

Optionally, in the automatic length measuring device of the present embodiment, the first position sensor 22 and/or the second position sensor 32 are/is a photoelectric sensor, and since the photoelectric sensor can realize non-contact detection, the detection can be realized without mechanically contacting the detection object, and therefore, the detection object and the sensor are not damaged, and therefore, the sensor can be used for a long time, so as to improve the service life of the automatic length measuring device, and at the same time, the response speed of the position sensor can be improved, and high-precision position detection can be realized. In other embodiments, other non-contact sensors or contact sensors may be used for the first position sensor 22 and the second position sensor 32, and are not described in detail herein.

Alternatively, as shown in fig. 3, in the automatic length measuring device of the present embodiment, the sensor fixing device 3 has an arched through cavity 33 through which the workpiece to be measured can pass. After the two position sensors complete the detection of the end position of the workpiece to be detected, the workpiece to be detected is pushed by the movable clamping device 2 until the workpiece to be detected passes through the arched through cavity 33 on the fixing device, the end of the workpiece to be detected passes through the sensor fixing device 3, and a cutting device can be arranged at a proper position as required to cut the end of the workpiece to be detected which passes through the sensor fixing device 3.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. An automatic length measuring device is characterized by comprising a gantry lathe bed, a movable clamping device, a sensor fixing device and a supporting device, wherein the movable clamping device is slidably mounted at one end of the gantry lathe bed and comprises a clamping structure for clamping a workpiece to be measured and a first position sensor for detecting the position of one end of the workpiece to be measured;

the sensor fixing device is arranged at the other end of the gantry lathe bed, and a second position sensor for detecting the position of the other end of the workpiece to be detected is arranged on the sensor fixing device;

the supporting device comprises a supporting platform and a centering mechanism, the supporting platform is arranged on the gantry lathe bed and used for supporting the workpiece to be measured to slide along the moving direction of the moving clamping device, and the centering mechanism is used for limiting the axial direction of the workpiece to be measured to be parallel to the moving direction of the moving clamping device.

2. The automatic length measuring device of claim 1, wherein the movable clamping device further comprises a base slidably mounted on the gantry bed, the clamping structure is disposed on an end surface of the base facing the sensor fixing device, a mounting bracket extending to an end of the clamping structure is disposed on one side of the base, and the first position sensor is disposed at an end of the mounting bracket.

3. The automatic length measuring device of claim 1, wherein the holding structure has a fixed cavity for the workpiece to be measured to be inserted into, and the supporting device is further used for limiting the axis of the workpiece to be measured to be collinear with the axis of the fixed cavity.

4. The automatic length measuring device of claim 1, wherein a mounting plate is further provided on the sensor fixing device, and the second position sensor is adjustably mounted on the mounting plate.

5. The automatic length measuring device of claim 4, wherein the mounting plate is provided with a plurality of fixing holes extending in a bar shape, and the second position sensor is fixed to the mounting plate by a plurality of fixing members which are slidable along the fixing holes and have damping.

6. The automatic length measuring device of claim 4, wherein the sensor fixing device is movably mounted on the gantry bed.

7. The automatic length measuring device of claim 1, wherein the number of the support platform and the centering mechanism is plural.

8. The automatic length measuring device of claim 7, wherein a plurality of the centering mechanisms are spaced apart from the support platform on the gantry bed.

9. The automatic length measuring device of any one of claims 1 to 8, wherein the first position sensor and/or the second position sensor is a photosensor.

10. The automatic length measuring device of any one of claims 1 to 8, wherein the sensor fixing device has a through cavity through which the workpiece to be measured can pass.

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