CN216000147U

CN216000147U - Quick clamping measuring clamp for automobile air conditioner control panel

Info

Publication number: CN216000147U
Application number: CN202120862161.7U
Authority: CN
Inventors: 罗成勇; 汤伟; 赵红; 邓高贵; 寻焜燃; 危群
Original assignee: Valeo Interior Controls Shenzhen Co Ltd
Current assignee: Valeo Interior Controls Shenzhen Co Ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2022-03-11
Anticipated expiration: 2031-04-25

Abstract

The utility model relates to a rapid clamping and measuring clamp for an automobile air conditioner control panel, which comprises: the device comprises a fixed base, a support frame, an upper fixing device and a lower fixing device, wherein the lower fixing device and the support frame are respectively fixedly assembled on the fixed base, and the upper fixing device is movably assembled on the support frame and is positioned right above the lower fixing device. The embodiment of the utility model uses a mode of rapid clamping and accurate positioning, and improves the efficiency and the precision of size measurement. The utility model can improve the detection speed, can finish the measurement work by one procedure, does not need to measure the reference again on the clamp, improves the sample replacing speed, improves the measurement precision, avoids the error caused by reference conversion, reduces the clamp cost, can finish the size measurement of two surfaces by one set of clamp, and reduces the manufacturing cost of one set of clamp.

Description

Quick clamping measuring clamp for automobile air conditioner control panel

Technical Field

The utility model relates to the technical field, in particular to a rapid clamping and measuring clamp for an automobile air conditioner control panel.

Background

Along with the rapid development of manufacturing, each field is more and more high to the requirement of product processingquality and assembly precision, and each processing and manufacturing enterprise all establish one set of perfect detecting system according to the demand of oneself, and wherein the three-dimensional is indispensable, and the one set of anchor clamps of preparation realize the quick fixed of product and cooperate the three-dimensional accurate location of realizing among the size measurement process then be the focus of priority, are of value to the efficiency and the reliability that promote the detection.

Because of vehicle air conditioner panel appearance shape is peculiar, usually when designing anchor clamps, the designer all can be with product benchmark conversion to the anchor clamps on design and processing, when using this kind of anchor clamps to measure, measurement personnel need measure the benchmark on the anchor clamps earlier, install the product on anchor clamps again, carry out the size measurement, such anchor clamps design has three shortcoming: 1, product reference is converted to the clamp, conversion errors can occur in the reference, and measurement errors are increased. 2, measurement efficiency is low, and because of the big degree of difficulty of dismouting sample at every turn, and need measure the anchor clamps benchmark once more, extravagant measuring time. 3, the measurement position is blocked, and the size cannot be completed by one program, so that the cost of the test flow and the test fixture is increased.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a rapid clamping and measuring clamp for an automobile air conditioner control panel aiming at the defects of the prior art.

The embodiment of the utility model provides a rapid clamping and measuring clamp for an automobile air conditioner control panel, which comprises the following components: the device comprises a fixed base, a support frame, an upper fixing device and a lower fixing device, wherein the lower fixing device and the support frame are respectively fixedly assembled on the fixed base; the supporting frame comprises a first supporting frame vertically assembled on the fixed base and a second supporting frame transversely assembled on the top of the first supporting frame, the inner end part of the second supporting frame is hinged with the top of the first supporting frame through a rotating shaft, a through hole is formed in the second supporting frame, a screw hole is formed in the top of the first supporting frame, and when the second supporting frame is located at a transverse position, a screw penetrates through the through hole and is screwed in the screw hole to fix the position of the second supporting frame; the upper fixing device is assembled to the outer end portion of the second support frame, the upper fixing device is provided with an upper copying groove facing the lower fixing device and an upper copying ejection top, the lower fixing device is provided with a lower copying groove facing the upper fixing device and a lower copying ejection top, the upper copying groove and the lower copying groove are used for being matched with protruding positions of the upper end and the lower end of the automobile air conditioner control panel serving as an object to be measured, and the upper copying ejection top and the lower copying ejection top are used for being matched with hole positions of the upper end and the lower end of the automobile air conditioner control panel.

In some embodiments, the fixing base and the second supporting frame are configured with a plurality of sets of mounting holes, the plurality of sets of mounting holes have different mounting directions, and the upper fixing device and the lower fixing device are fixed in the corresponding mounting holes according to a preset mounting direction.

In some embodiments, the lower fixing device is provided with a lower slotted hole facing the upper fixing device, a lower spring, a lower gasket, a lower profiling top head and a lower limiting ring sleeve are assembled in the lower slotted hole, the lower limiting ring sleeve is fixed in the slotted hole in an interference fit mode, the rod part of the lower profiling top head penetrates through the lower limiting ring sleeve from outside to be fixedly connected with the lower gasket, the head part of the lower profiling top head is exposed out of the lower slotted hole, one end of the lower spring acts on the bottom of the lower slotted hole, and the other end of the lower spring acts on the lower gasket; the lower spring, the lower gasket, the lower profiling ejector and the lower limiting ring sleeve form a lower profiling bullet ejector.

In some embodiments, the upper fixing device is provided with an upper slotted hole facing the lower fixing device, an upper spring, an upper gasket, an upper profiling top and an upper limiting ring sleeve are assembled in the upper slotted hole, the upper limiting ring sleeve is fixed in the slotted hole in an interference fit mode, the rod part of the upper profiling top penetrates through the upper limiting ring sleeve from outside to be fixedly connected with the upper gasket, the head part of the upper profiling top is exposed out of the upper slotted hole, one end of the upper spring acts on the bottom of the upper slotted hole, and the other end of the upper spring acts on the upper gasket; the upper spring, the upper gasket, the upper profiling ejector and the upper limiting ring sleeve form an upper profiling bullet ejector.

In some embodiments, the four corners of the fixing base are respectively provided with a fixing hole, and the fixing holes are used for positioning the fixing base on the workbench.

In some embodiments, the upper fixing device and the lower fixing device are integrally and vertically arranged in a flat plate shape, and the outer end parts of the upper fixing device and the lower fixing device are respectively provided with an integrally formed upper profiling groove and a lower profiling groove.

Compared with the prior art, the rapid clamping measuring clamp for the control panel of the automobile air conditioner provided by the embodiment of the utility model comprises the following components: the device comprises a fixed base, a support frame, an upper fixing device and a lower fixing device, wherein the lower fixing device and the support frame are respectively fixedly assembled on the fixed base; the supporting frame comprises a first supporting frame vertically assembled on the fixed base and a second supporting frame transversely assembled on the top of the first supporting frame, the inner end part of the second supporting frame is hinged with the top of the first supporting frame through a rotating shaft, a through hole is formed in the second supporting frame, a screw hole is formed in the top of the first supporting frame, and when the second supporting frame is located at a transverse position, a screw penetrates through the through hole and is screwed in the screw hole to fix the position of the second supporting frame; the upper fixing device is assembled to the outer end portion of the second support frame, the upper fixing device is provided with an upper copying groove facing the lower fixing device and an upper copying ejection top, the lower fixing device is provided with a lower copying groove facing the upper fixing device and a lower copying ejection top, the upper copying groove and the lower copying groove are used for being matched with protruding positions of the upper end and the lower end of the automobile air conditioner control panel serving as an object to be measured, and the upper copying ejection top and the lower copying ejection top are used for being matched with hole positions of the upper end and the lower end of the automobile air conditioner control panel. The embodiment of the utility model uses a mode of rapid clamping and accurate positioning, and improves the efficiency and the precision of size measurement. The fixture comprises three core components, namely a fixed base, a support frame and a quick fixing mechanism, namely an up/down fixing device, can directly measure the standard on a product to establish a coordinate system by using the fixture for measurement, can simultaneously measure the sizes of a front surface and a back surface, and saves the measurement time and the test fixture. The utility model can improve the detection speed, can finish the measurement work by one procedure, does not need to measure the reference again on the clamp, improves the sample replacing speed, improves the measurement precision, avoids the error caused by reference conversion, reduces the clamp cost, can finish the size measurement of two surfaces by one set of clamp, and reduces the manufacturing cost of one set of clamp.

The details of one or more embodiments of the utility model are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the utility model.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a structural diagram of a quick clamping measuring fixture for an automotive air conditioner control panel according to an embodiment of the utility model.

Fig. 2 is a structural view of a lower copying dome of an embodiment of the utility model.

In the figure, 1, a base is fixed; 2. a support frame; 3. an upper fixing device; 4. a lower fixing device; 5. a first support frame; 6. a second support frame; 7. a rotating shaft; 8. a through hole; 9. a screw hole; 10. a screw; 11. an upper profiling groove; 12. upward profiling ejection; 13. a lower profiling groove; 14. a lower profiling bullet top; 15. mounting holes; 16. a lower slot; 17. a lower spring; 18. a lower gasket; 19. a lower profiling plug; 20. a lower limit ring sleeve; 21. a fixing hole; 22. vehicle air conditioner control panel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments provided by the present invention, belong to the protection scope of the present invention. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the utility model. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one of ordinary skill in the art that the described embodiments of the present invention can be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" and "an" and "the" and similar referents in the context of describing the utility model are not to be construed as limiting in number, and may be construed to cover both the singular and the plural. The present invention relates to the terms "comprises," "comprising," "includes," "including," "has," "having" and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in the description of the utility model are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as used herein means two or more. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The terms "first," "second," "third," and the like in reference to the present invention are used merely to distinguish between similar objects and not necessarily to represent a particular ordering for the objects.

As shown in fig. 1-2, in order to simplify the structure of the fixture and reduce the manufacturing cost of the fixture, the structural assembly of the fixture needs to be simplified, but at the same time, the reliability needs to be ensured. Therefore, it specifically comprises: the fixing device comprises a fixing base 1, a support frame 2, an upper fixing device 3 and a lower fixing device 4, wherein the lower fixing device 4 and the support frame 2 are respectively fixedly assembled on the fixing base 1, and the upper fixing device 3 is movably assembled on the support frame 2 and is positioned right above the lower fixing device 4. The clamp comprises three core components, namely a fixed base 1, a support frame 2 and a quick fixing mechanism, namely an up/down fixing device 4, can directly measure a reference on a product to establish a coordinate system by using the clamp for measurement, can measure the sizes of a front surface and a back surface at the same time, and saves measurement time and a test clamp.

Specifically, the support frame 2 serves as a basis for assembling the fixing device 3, so that the automobile air conditioner control panel 22 to be measured can be assembled better, and the speed and the reliability of quick clamping are improved. The support frame 2 is configured to include a first support frame 5 vertically assembled on the fixed base 1 and a second support frame 6 transversely assembled on the top of the first support frame 5, and the inner end of the second support frame 6 is hinged with the top of the first support frame 5 through a rotating shaft 7. The second support frame 6 has a rotation range that is rotated upward from the lateral position, and in a natural state, the second support frame 6 maintains the lateral position, that is, a state perpendicular to the first support frame 5. The support frame 2 has simple structure, strong reliability and high practicability.

In particular, in order to ensure the positioning effect of the fixture during the measurement stage, the second support frame 6 needs to be fixed and positioned at the transverse position. Therefore, the second support frame 6 is provided with a through hole 8, the top of the first support frame 5 is provided with a screw hole 9, and when the second support frame 6 is in a transverse position, a screw 10 passes through the through hole 8 and is screwed in the screw hole 9 to fix the position of the second support frame 6.

In particular, in order to provide accurate positioning and clamping of the vehicle air conditioner control panel 22 and achieve quick clamping, a reliable and simplified clamping structure needs to be designed. In the present invention, the upper fixing device 3 is assembled to the outer end portion of the second support frame 6, and the upper fixing device 3 is configured with the upper copying groove 11 and the upper copying spring top 12 facing the lower fixing device 4, the lower fixing device 4 is configured with the lower copying groove 13 and the lower copying spring top 14 facing the upper fixing device 3, the upper copying groove 11 and the lower copying groove 13 are used for matching with the convex positions of the upper end and the lower end of the automobile air-conditioning control panel 22 as the object to be measured, and the upper copying spring top 12 and the lower copying spring top 14 are used for matching with the hole positions of the upper end and the lower end of the automobile air-conditioning control panel 22.

In this embodiment, in order to improve the application range and reliability of the present clamp, it is necessary to have adjustability of clamping, and to quickly replace and adjust the responsive parts when measuring the different vehicle air conditioner control panels 22. Therefore, the fixing base 1 and the second support frame 6 of the present embodiment are configured with a plurality of sets of mounting holes 15, the plurality of sets of mounting holes 15 have different mounting directions, and the upper fixing device 3 and the lower fixing device 4 are fixed in the corresponding mounting holes 15 according to the preset mounting directions.

In the embodiment, the lower fixing device 4 is provided with a lower slot 16 facing the upper fixing device 3, a lower spring 17, a lower gasket 18, a lower profiling top 19 and a lower limiting ring sleeve 20 are arranged in the lower slot 16, the lower limiting ring sleeve 20 is fixed in the slot in an interference fit manner, the rod part of the lower profiling top 19 penetrates through the lower limiting ring sleeve 20 from outside to be fixedly connected with the lower gasket 18, the head part of the lower profiling top is exposed out of the lower slot 16, one end of the lower spring 17 acts on the hole bottom of the lower slot 16, and the other end of the lower spring acts on the lower gasket 18; the lower spring 17, the lower washer 18, the lower copying top 19 and the lower limiting ring sleeve 20 form the lower copying bullet top 14. Similarly, the upper fixing device 3 is provided with an upper slotted hole facing the lower fixing device 4, an upper spring, an upper gasket, an upper profiling top and an upper limiting ring sleeve are assembled in the upper slotted hole, the upper limiting ring sleeve is fixed in the slotted hole in an interference fit manner, the rod part of the upper profiling top penetrates through the upper limiting ring sleeve from outside to be fixedly connected with the upper gasket, the head part of the upper profiling top is exposed out of the upper slotted hole, one end of the upper spring acts on the bottom of the upper slotted hole, and the other end of the upper spring acts on the upper gasket; the upper spring, the upper gasket, the upper profiling ejector and the upper limiting ring sleeve form an upper profiling bullet ejector 12. The lower profiling bullet top 14 and the upper profiling bullet top 12 are simple in assembly structure and high in reliability, the upper profiling bullet top and the lower profiling bullet top 19 are elastically embedded, matched and positioned in holes of the automobile air conditioner control panel 22 under the action of the springs, and the accurate positioning performance of the automobile air conditioner control panel 22 in a clamp is improved. (Upper slot, upper spring, upper washer, upper contoured plug and upper retainer ring correspond to lower slot 16, lower spring 17, lower washer 18, lower contoured plug 19 and lower retainer ring 20, respectively, and are not shown.)

In the present embodiment, the four corners of the fixing base 1 are respectively provided with fixing holes 21, and the fixing holes 21 are used for positioning the fixing base 1 on the workbench. The fixture realizes the fixed positioning on the early worktable through the fixing holes 21 and the fixing bolts, has simple structure and can improve the reliability.

In this embodiment, the upper fixing device 3 and the lower fixing device 4 are integrally erected in a flat plate shape, and an upper profile groove 11 and a lower profile groove 13 are integrally formed in outer end portions of the upper fixing device 3 and the lower fixing device 4, respectively. The flat plate-shaped structure can save the manufacturing cost, although the structure is flat plate-shaped, the convex positions of the upper profiling groove 11 and the lower profiling groove 13 on the control panel 22 of the automobile air conditioner are both in the long axis direction of the flat plate, so that the structure has enough supporting force, and the manufacturing cost is reduced on the premise of ensuring the structural reliability.

The working principle of the embodiment of the utility model is as follows:

firstly, a measuring clamp is installed on a testing device (a working platform), a screw 10 knob of an upper fixing device 3 is loosened, the upper fixing device 3 is lifted, then a measuring product is installed on the clamp, the upper fixing device 3 is locked, then a product measuring program is compiled on the measuring device, and the sizes of the front side and the back side are compiled into one program, if the existing measuring program exists, the program can be directly called.

Compared with the prior art, the rapid clamping and measuring clamp for the control panel 22 of the automobile air conditioner provided by the embodiment of the utility model comprises the following components: the device comprises a fixed base 1, a support frame 2, an upper fixing device 3 and a lower fixing device 4, wherein the lower fixing device 4 and the support frame 2 are respectively fixedly assembled on the fixed base 1, and the upper fixing device 3 is movably assembled on the support frame 2 and is positioned right above the lower fixing device 4; the support frame 2 comprises a first support frame 5 vertically assembled on the fixed base 1 and a second support frame 6 transversely assembled on the top of the first support frame 5, the inner end part of the second support frame 6 is hinged with the top of the first support frame 5 through a rotating shaft 7, the second support frame 6 is provided with a through hole 8, the top of the first support frame 5 is provided with a screw hole 9, and when the second support frame 6 is located at a transverse position, a screw 10 penetrates through the through hole 8 and is screwed in the screw hole 9 to fix the position of the second support frame 6; the upper fixing device 3 is assembled to the outer end portion of the second support frame 6, the upper fixing device 3 is provided with an upper copying groove 11 and an upper copying spring top 12 facing the lower fixing device 4, the lower fixing device 4 is provided with a lower copying groove 13 and a lower copying spring top 14 facing the upper fixing device 3, the upper copying groove 11 and the lower copying groove 13 are used for being matched with convex positions at the upper end and the lower end of an automobile air conditioner control panel 22 serving as an object to be measured, and the upper copying spring top 12 and the lower copying spring top 14 are used for being matched with hole positions at the upper end and the lower end of the automobile air conditioner control panel 22. The embodiment of the utility model uses a mode of rapid clamping and accurate positioning, and improves the efficiency and the precision of size measurement. The fixture comprises three core components, namely a fixed base 1, a support frame 2 and a quick fixing mechanism, namely an up/down fixing device 4, can directly measure a reference on a product to establish a coordinate system by using the fixture for measurement, can simultaneously measure the sizes of a front surface and a back surface, and saves the measurement time and the test fixture. The utility model can improve the detection speed, can finish the measurement work by one procedure, does not need to measure the reference again on the clamp, improves the sample replacing speed, improves the measurement precision, avoids the error caused by reference conversion, reduces the clamp cost, can finish the size measurement of two surfaces by one set of clamp, and reduces the manufacturing cost of one set of clamp.

It should be understood by those skilled in the art that various features of the above-described embodiments can be combined in any combination, and for the sake of brevity, all possible combinations of features in the above-described embodiments are not described in detail, but rather, all combinations of features which are not inconsistent with each other should be construed as being within the scope of the present disclosure.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a quick clamping measuring jig of vehicle air conditioner control panel which characterized in that includes: the device comprises a fixed base (1), a support frame (2), an upper fixing device (3) and a lower fixing device (4), wherein the lower fixing device (4) and the support frame (2) are respectively fixedly assembled on the fixed base (1), and the upper fixing device (3) is movably assembled on the support frame (2) and is positioned right above the lower fixing device (4); the supporting frame (2) comprises a first supporting frame (5) vertically assembled on the fixing base (1) and a second supporting frame (6) transversely assembled on the top of the first supporting frame (5), the inner end part of the second supporting frame (6) is hinged to the top of the first supporting frame (5) through a rotating shaft (7), a through hole (8) is formed in the second supporting frame (6), a screw hole (9) is formed in the top of the first supporting frame (5), and when the second supporting frame (6) is located at a transverse position, a screw (10) penetrates through the through hole (8) and is screwed into the screw hole (9) to fix the position of the second supporting frame (6); the upper fixing device (3) is assembled at the outer end of the second supporting frame (6), the upper fixing device (3) is provided with an upper profiling groove (11) facing the lower fixing device (4) and an upper profiling ejection top (12), the lower fixing device (4) is provided with a lower profiling groove (13) facing the upper fixing device (3) and a lower profiling ejection top (14), the upper profiling groove (11) and the lower profiling groove (13) are used for being matched with convex positions at the upper end and the lower end of an automobile air conditioner control panel (22) serving as an object to be measured, and the upper profiling ejection top (12) and the lower profiling ejection top (14) are used for being matched with hole positions at the upper end and the lower end of the automobile air conditioner control panel (22).

2. The clamp for rapidly clamping and measuring the control panel of the air conditioner of the automobile as claimed in claim 1, wherein the fixing base (1) and the second supporting frame (6) are provided with a plurality of sets of mounting holes (15), the plurality of sets of mounting holes (15) have different mounting directions, and the upper fixing device (3) and the lower fixing device (4) are fixed in the corresponding mounting holes (15) according to a preset mounting direction.

3. The quick clamping measuring fixture for the control panel of the air conditioner of the automobile as claimed in claim 1, characterized in that the lower fixing device (4) is provided with a lower slot hole (16) facing the upper fixing device (3), the lower slot hole (16) is internally provided with a lower spring (17), a lower gasket (18), a lower profiling top head (19) and a lower limiting ring sleeve (20), the lower limiting ring sleeve (20) is fixed in the slot hole in an interference fit manner, the rod part of the lower profiling top head (19) passes through the lower limiting ring sleeve (20) from outside to be fixedly connected with the lower gasket (18) and the head part of the lower profiling top head is exposed out of the lower slot hole (16), one end of the lower spring (17) acts on the bottom of the lower slot hole (16), and the other end acts on the lower gasket (18); the lower profiling bullet top (14) is composed of a lower spring (17), a lower gasket (18), a lower profiling top head (19) and a lower limiting ring sleeve (20).

4. The clamp for rapidly clamping and measuring the control panel of the air conditioner of the automobile as claimed in claim 1 or 3, wherein the upper fixing device (3) is provided with an upper slotted hole facing the lower fixing device (4), an upper spring, an upper gasket, an upper profiling top and an upper limiting ring sleeve are assembled in the upper slotted hole, the upper limiting ring sleeve is fixed in the slotted hole in an interference fit manner, the rod part of the upper profiling top penetrates through the upper limiting ring sleeve from outside to be fixedly connected with the upper gasket, the head part of the upper profiling top is exposed out of the upper slotted hole, one end of the upper spring acts on the hole bottom of the upper slotted hole, and the other end of the upper spring acts on the upper gasket; the upper spring, the upper gasket, the upper profiling ejector and the upper limiting ring sleeve form the upper profiling bullet ejector (12).

5. The clamp for rapidly clamping and measuring the control panel of the air conditioner of the automobile as claimed in claim 1, wherein the four corners of the fixing base (1) are respectively provided with a fixing hole (21), and the fixing holes (21) are used for positioning the fixing base (1) on a workbench.

6. The clamp for rapidly clamping and measuring the control panel of the air conditioner of the automobile as claimed in claim 1, wherein the upper fixing device (3) and the lower fixing device (4) are integrally and vertically arranged in a flat plate shape, and the upper profiling groove (11) and the lower profiling groove (13) are respectively and integrally formed at the outer end parts of the upper fixing device (3) and the lower fixing device (4).