CN218211189U

CN218211189U - Size detection device with grating ruler

Info

Publication number: CN218211189U
Application number: CN202222713184.9U
Authority: CN
Inventors: 詹欣杰; 谢劲松; 刘智勇
Original assignee: Guangdong Jingdahong Automation Technology Co ltd
Current assignee: Guangdong Jingdahong Automation Technology Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-01-03
Anticipated expiration: 2032-10-14

Abstract

The utility model relates to a size detection device technical field, especially a size detection device with grating chi, include the backup pad and install the support frame at the top of backup pad, the top surface of backup pad is provided with grating chi, drive assembly, direction subassembly, light source lamp and mobile station, mobile station slidable mounting is at the top of direction subassembly, the mobile station is provided with the through-hole, the light source lamp is located the below of through-hole, the support frame upper end is provided with the industry CCD camera, the position of industry CCD camera and light source lamp is corresponding, grating chi includes scale grating and grating reading head, grating reading head slidable mounting is in the top of scale grating, drive assembly includes drive division and removal portion, the one end and the grating reading head of removal portion are connected, the other end and the mobile station of removal portion are connected, drive division drive removal of removal portion, can measure to the work piece of high accuracy.

Description

Size detection device with grating ruler

Technical Field

The utility model relates to a size detection device technical field, especially a size detection device with grating chi.

Background

The measurement is an experimental recognition process which compares the measured quantity with a standard quantity with a metering unit in numerical value so as to determine the ratio of the measured quantity to the standard quantity.

In machining, the length of a workpiece is often measured, the machined length is ensured to meet the use requirement, currently, a vernier caliper, a tape measure and the like are used for measurement by a manual method, the vernier caliper or the tape measure can meet the requirements of some workpieces with lower required precision, but accurate data cannot be provided for some high-precision workpieces.

SUMMERY OF THE UTILITY MODEL

To the above defect, the utility model aims to provide a size detection device with grating chi can measure to the work piece of high accuracy, adopts industry CCD camera and grating chi cooperation to measure the device of work piece size together.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a size detection device with grating chi, includes the backup pad and installs the support frame at the top of backup pad, the top surface of backup pad is provided with grating chi, drive assembly, direction subassembly, light source lamp and mobile station, the mobile station slidable mounting be in the top of direction subassembly, the mobile station is provided with the through-hole, the light source lamp is located the below of through-hole, the support frame upper end is provided with industry CCD camera, industry CCD camera with the position of light source lamp is corresponding, the grating chi includes scale grating and grating reading head, grating reading head slidable mounting in the top of scale grating, drive assembly includes drive division and removal portion, the one end of removal portion with the grating reading head is connected, the other end of removal portion with the mobile station is connected, the drive division drive removal of removal portion.

Further, the mobile station comprises a sliding plate, a light-transmitting plate and a supporting column, the through hole is located on the sliding plate, the light-transmitting plate is installed above the sliding plate through the supporting column, and the light-transmitting plate is located right above the through hole.

Further, the drive division includes shaft coupling, driving machine, support piece and transmission shaft, the transmission shaft passes the removal portion, the transmission shaft with the cooperation of removal portion transmission, support piece installs the both ends of transmission shaft, the transmission shaft rotatable install in support piece, the one end of shaft coupling with the transmission shaft is connected, the other end of shaft coupling with the drive end of driving machine is connected.

Furthermore, the supporting piece comprises a supporting block and a bearing, a mounting hole for mounting the bearing is formed in the end face of the supporting block, and two ends of the transmission shaft are mounted in the bearing.

Furthermore, the driving machine is a servo motor, and the transmission shaft is a lead screw.

Further, the removal portion includes fixed block, connecting block and transmission piece, the transmission piece is installed the terminal surface of connecting block, the transmission shaft passes the transmission piece and rather than threaded connection, the one end of connecting block with the grating reading head is connected, the other end of connecting block with the one end of fixed block is connected, the other end of fixed block with the mobile station is connected.

Furthermore, the length of the through hole is larger than or equal to that of the transmission shaft, and the fixed block is connected to the middle of the side edge of the mobile station.

Further, the guide assembly comprises a guide rail and a sliding block, the sliding block is slidably connected to the top of the guide rail, and the sliding plate is mounted on the top of the sliding block.

Further, the guide assembly, the scale grating and the transmission shaft are parallel to each other.

Furthermore, a fixing plate is installed at the top of the supporting frame, and the industrial CCD camera is installed on the end face of the fixing plate.

The utility model provides a technical scheme can include following beneficial effect: the top surface of backup pad is provided with the grating chi, the light source lamp is located the below of through-hole, the support frame upper end is provided with industry CCD camera, industry CCD camera is corresponding with the position of light source lamp, if the work piece size is longer, the whole length of work piece is then can't once only shoot to industry CCD camera, extract the size, the work piece then carries the removal by the mobile station in the below of industry CCD camera, industry CCD camera carries out many images and shoots, thereby it is complete with the whole shooting of work piece, many images transmission that will shoot transmit to the computer, and grating reading head and mobile station synchronous motion in-process, also pass to the computer together with the dimensional data who measures, handle, obtain accurate dimensional data.

Drawings

Fig. 1 is a schematic structural diagram of a size detection apparatus with a grating scale according to an embodiment of the present invention;

fig. 2 is a second schematic structural diagram of a size detection apparatus with a grating ruler according to an embodiment of the present invention;

fig. 3 is a schematic view of the driving assembly.

Wherein: 1-a support plate, 2-a support frame, 3-a grating ruler, 4-a driving component, 5-a guiding component, 6-a light source lamp, 7-a moving platform, 8-a through hole, 9-an industrial CCD camera and 10-a fixing plate;

31-scale grating, 32-grating reading head;

41-driving part, 42-moving part, 411-coupler, 412-driving machine, 413-supporting part, 414-transmission shaft, 415-supporting block, 416-bearing, 421-fixing block, 422-connecting block and 423-transmission block;

51-guide rail, 52-slide block, 71-slide plate, 72-light-transmitting plate, 73-support column.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature for distinguishing between descriptive features, non-sequential, and non-trivial.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A size detection device with a grating ruler according to an embodiment of the present invention will be described below with reference to fig. 1 to 3.

The utility model provides a size detection device with grating chi, including backup pad 1 with install the support frame 2 at the top of backup pad 1, the top surface of backup pad 1 is provided with grating chi 3, drive assembly 4, direction subassembly 5, light source lamp 6 and mobile station 7, mobile station 7 slidable mounting is at the top of direction subassembly 5, mobile station 7 is provided with through-hole 8, light source lamp 6 is located the below of through-hole 8, support frame 2 upper end is provided with industry CCD camera 9, industry CCD camera 9 is corresponding with light source lamp 6's position, grating chi 3 includes scale grating 31 and grating reading head 32, grating reading head 32 slidable mounting is at the top of scale grating 31, drive assembly 4 includes drive division 41 and removal portion 42, the one end and the grating reading head 32 of removal portion 42 are connected, the other end and the mobile station 7 of removal portion 42 are connected, drive division 41 drive removal portion 42 removes.

The dimension detection device with the grating ruler is used for measuring workpieces with different dimensions, can measure the workpieces with high precision, and can solve the problem that accurate measurement data of the workpieces cannot be provided in a factory. In the measurement of the embodiment, the driving part 41 drives the moving part 42 to move, so that the grating reading head 32 and the moving platform 7 move simultaneously, the light source lamp 6 provides a light source for the industrial CCD camera 9, the industrial CCD camera 9 shoots a workpiece on the moving platform 7 in the moving process to measure the size, if the size of the workpiece is long, the industrial CCD camera 9 cannot shoot the whole length of the workpiece at one time to extract the size, the workpiece is carried and moved by the moving platform 7 below the industrial CCD camera 9, the industrial CCD camera 9 shoots a plurality of images, so that the whole shooting of the workpiece is complete, the shot plurality of images are transmitted to a computer, and in the synchronous moving process of the grating reading head 32 and the moving platform 7, the measured size data are transmitted to the computer together to be processed, and accurate size data are obtained.

The measurement range of the grating ruler 3 is within 1 meter, the grating ruler is suitable for measuring larger workpieces, the precision of the grating ruler 3 can reach +/-1 μm, it should be noted that the precision mentioned here refers to the actual possible error of the grating ruler 3 walking by 1 meter, and if the grating ruler walks by a small distance, the error is smaller.

When the mobile station 7 carries the workpiece to move, the industrial CCD camera 9 shoots a plurality of images on the workpiece, so that the whole workpiece is completely shot. In the moving shooting process of the industrial CCD camera 9, the boundary line of the visual field range of the industrial CCD camera 9 is used as a reference line for workpiece measurement when every image is shot in a moving mode, the boundary lines with the visual field range of the industrial CCD camera 9 in the images shot by the industrial CCD camera 9 are overlapped, and the grating ruler 3 is moved continuously to measure the length of the reference line, so that the size of each part of the workpiece is conveniently connected in a plurality of images by a computer. The light source lamp 6 can illuminate below the workpiece, so that the industrial CCD camera 9 can shoot the outline of the clear workpiece in the shooting process, and more accurate measurement size data can be obtained.

Specifically, the mobile station 7 includes a sliding plate 71, a transparent plate 72, and a support column 73, the through hole 8 is located on the sliding plate 71, the transparent plate 72 is mounted above the sliding plate 71 through the support column 73, and the transparent plate 72 is located directly above the through hole 8. The workpiece may be placed on the upper surface of the optically transparent plate 72. The transparent plate 72 is positioned right above the through hole 8, and light emitted from the light source lamp 6 can be ensured to pass through the through hole 8 and irradiate the surface of the workpiece through the transparent plate 72. The transparent plate 72 is mounted above the sliding plate 71 through the supporting column 73, so that a certain distance is formed between the transparent plate 72 and the light source lamp 6, and the light emitted by the light source lamp 6 can cover the diameter or width range of the workpiece.

Specifically, the driving portion 41 includes a coupling 411, a driving machine 412, a supporting member 413, and a transmission shaft 414, the transmission shaft 414 passes through the moving portion 42, the transmission shaft 414 is in transmission fit with the moving portion 42, the supporting member 413 is installed at two ends of the transmission shaft 414, the transmission shaft 414 is rotatably installed at the supporting member 413, one end of the coupling 411 is connected with the transmission shaft 414, and the other end of the coupling 411 is connected with the driving end of the driving machine 412. The driving machine 412 drives the transmission shaft 414 to rotate through the coupler 411, the transmission shaft 414 is in transmission fit with the moving part 42 and can drive the moving part 42 to move on the surface of the transmission shaft 414, and the support piece 413 can fix the transmission shaft 414 to move at the same position in the rotating process of the transmission shaft 414 so as to prevent the transmission shaft 414 from shifting.

The coupling 411 is installed between the driving machine 412 and the transmission shaft 414, and can perform functions of transmitting a rotational torque, compensating for an inter-shaft installation deviation, absorbing vibration, buffering load impact, and the like.

Specifically, the support 413 includes a support block 415 and a bearing 416, an end surface of the support block 415 is provided with a mounting hole for mounting the bearing 416, and both ends of the transmission shaft 414 are mounted in the bearing 416. The two ends of the transmission shaft 414 are fixed at the supporting block 415 through the bearings 416, and the bearings 416 can support the transmission shaft 414 and ensure the rotation of the transmission shaft 414, so that the friction coefficient of the transmission shaft 414 in the motion process is reduced, and the rotation precision of the transmission shaft 414 is ensured.

Specifically, the driver 412 is a servo motor and the drive shaft 414 is a lead screw. The driving machine 412 is a servo motor, so that the driving machine 412 has high rotation precision in the working process, and the servo motor has the advantages of strong overload resistance, stable operation, low noise and the like. The transmission shaft 414 is a lead screw which can convert the rotary motion into linear motion, has little frictional resistance and is strong in practicability.

Specifically, the moving part 42 includes a fixed block 421, a connecting block 422 and a transmission block 423, the transmission block 423 is installed on an end surface of the connecting block 422, the transmission shaft 414 passes through the transmission block 423 and is in threaded connection with the transmission block 423, one end of the connecting block 422 is connected with the grating reading head 32, the other end of the connecting block 422 is connected with one end of the fixed block 421, and the other end of the fixed block 421 is connected with the moving stage 7. The transmission shaft 414 penetrates through the transmission block 423 and is in threaded connection with the transmission block 423, so that the transmission shaft 414 drives the transmission block 423 to move, the connection block 422 is driven to move, the connection block 422 drives the grating reading head 32 and the fixed block 421 which are installed at two ends to move, the fixed block 421 is connected with the mobile station 7, and the mobile station 7 and the grating reading head 32 can be guaranteed to move simultaneously.

Specifically, the length of the through hole 8 is greater than or equal to the length of the transmission shaft 414, and the fixing block 421 is connected to the middle of the side edge of the moving stage 7. The fixed block 421 is connected in the middle of the mobile station 7, so that the fixed block 421 is ensured to be always kept above the light source lamp 6 in the process of driving the mobile station 7 to move, and the light emitted by the light source lamp 6 is prevented from being shielded.

Specifically, the guide assembly 5 includes a guide rail 51 and a slider 52, the slider 52 is slidably coupled to the top of the guide rail 51, and a sliding plate 71 is mounted on the top of the slider 52. The two guide rails 51 are respectively arranged on two sides of the sliding plate 71, and the two sliding blocks 52 are respectively arranged on two ends of the sliding plate 71 in the sliding direction, so that the stability of the sliding plate 71 in the sliding process is ensured.

Specifically, the guide assembly 5, the scale grating 31 and the drive shaft 414 are parallel to each other. The guide assembly 5, the scale grating 31 and the transmission shaft 414 are parallel to each other, so that the sliding on the same parallel line can be ensured, and the deviation generated in the sliding process of the guide assembly 5, the scale grating 31 and the transmission shaft 414 is avoided, and the influence on the recording of the moving size of the moving platform 7 by the scale grating 31 is avoided.

Specifically, a fixing plate 10 is mounted on the top of the support frame 2, and an industrial CCD camera 9 is mounted on the end face of the fixing plate 10. The top position of fixed plate 10 at support frame 2 can be adjusted according to the position of light source lamp 6 to industry CCD camera 9, and the both sides of fixed plate 10 are provided with the fixed orifices, and fixed plate 10 can penetrate the bolt fixed mounting at the top of support frame 2, avoids fixed plate 10 to remove at the top of fixed plate 10.

Other configurations and operations of a size detecting apparatus with a grating ruler according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A size detecting device having a grating scale, characterized in that: the device comprises a support plate and a support frame arranged on the top of the support plate, wherein a grating ruler, a driving assembly, a guide assembly, a light source lamp and a mobile platform are arranged on the top surface of the support plate;

the movable table is slidably mounted at the top of the guide assembly and provided with a through hole, and the light source lamp is positioned below the through hole;

an industrial CCD camera is arranged at the upper end of the support frame and corresponds to the light source lamp;

the grating ruler comprises a scale grating and a grating reading head, and the grating reading head is slidably mounted at the top of the scale grating;

the driving assembly comprises a driving part and a moving part, one end of the moving part is connected with the grating reading head, the other end of the moving part is connected with the moving platform, and the driving part drives the moving part to move.

2. A size detecting device with a grating ruler according to claim 1, wherein: the mobile station comprises a sliding plate, a light-transmitting plate and a supporting column;

the through hole is positioned on the sliding plate, the light-transmitting plate is arranged above the sliding plate through the supporting column, and the light-transmitting plate is positioned right above the through hole.

3. A size detecting device with a grating ruler according to claim 1, wherein: the driving part comprises a coupling, a driving machine, a supporting piece and a transmission shaft;

the transmission shaft penetrates through the moving part, the transmission shaft is in transmission fit with the moving part, the supporting parts are installed at two ends of the transmission shaft, and the transmission shaft is rotatably installed on the supporting parts;

one end of the coupler is connected with the transmission shaft, and the other end of the coupler is connected with the driving end of the driving machine.

4. A dimension detecting apparatus having a grating scale according to claim 3, wherein: the support member comprises a support block and a bearing;

the end face of the supporting block is provided with a mounting hole for mounting the bearing, and two ends of the transmission shaft are mounted in the bearing.

5. A dimension detecting device with a grating ruler according to claim 3, wherein: the driving machine is a servo motor, and the transmission shaft is a lead screw.

6. A size detecting device with a grating ruler according to claim 5, wherein: the moving part comprises a fixed block, a connecting block and a transmission block;

the transmission block is installed the terminal surface of connecting block, the transmission shaft passes the transmission block and rather than threaded connection, the one end of connecting block with the grating reading head is connected, the other end of connecting block with the one end of fixed block is connected, the other end of fixed block with the mobile station is connected.

7. A size detecting device with a grating ruler according to claim 6, wherein: the length of the through hole is larger than or equal to that of the transmission shaft, and the fixed block is connected to the middle of the side edge of the mobile station.

8. A size detecting device with a grating ruler according to claim 2, wherein: the guide assembly comprises a guide rail and a sliding block;

the sliding block is connected to the top of the guide rail in a sliding mode, and the sliding plate is installed on the top of the sliding block.

9. A dimension detecting apparatus having a grating scale according to claim 3, wherein: the guide assembly, the scale grating and the transmission shaft are parallel to each other.

10. A size detecting device with a grating ruler according to claim 1, wherein: the fixed plate is installed at the top of the supporting frame, and the industrial CCD camera is installed on the end face of the fixed plate.