Spring pressing type attaching clamp

Abstract

The utility model relates to the technical field of fixtures, and discloses a spring pressing type fitting fixture which is high in fitting precision and fitting yield, improves fitting efficiency and reduces fitting cost, and comprises a bottom plate, a movable positioning plate positioned above the bottom plate, at least one pair of elastic limiting components, and a glass placing base positioned above the movable positioning plate, at least one supporting column is arranged on the upper surface of the bottom plate; the movable positioning plate is provided with at least one penetrating connection hole correspondingly penetrating through the supporting column, and the elastic limiting assembly comprises a positioning column which penetrates through the movable positioning plate in a sliding mode and is inserted into the bottom plate, a locking piece which is matched with the bottom plate in a limiting mode and connected with the positioning column, and a spring which is connected to the positioning column in a sleeving mode and located between the bottom plate and the movable positioning plate. The movable positioning plate is close to the bottom plate when being pressed, so that the metal pieces on the supporting columns extend out of the penetrating holes; an installation groove is formed in the lower surface of the glass containing base, an air pipe connector is arranged on the side face of the glass containing base, an air channel communicated with the air pipe connector is arranged in the glass containing base, and an air suction hole communicated with the air channel is formed in the top face of the installation groove.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a spring-pressing type fitting clamp. Background Technology

[0002] During the manufacturing process of mobile phones, metal sheets need to be attached to the system surface of the phone's glass cover (the side of the glass cover that is inside the phone) to connect the screen and functional components. Currently, in the industry, when attaching metal sheets to the glass cover, operators mainly place the metal sheet in the metal sheet conformal groove of the fixture, then align the glass cover with the fixture and place it into the receiving groove of the fixture, and finally press the surface of the glass cover with rollers to bond the glass cover and the metal sheet together. Because the metal sheet attached to the glass cover is relatively thin (0.15mm), the depth of the metal sheet groove in the fixture needs to be less than 0.15mm to ensure proper bonding between the glass cover and the metal sheet. This allows the surface of the metal sheet to contact the glass cover. However, when the metal sheet is placed into the groove, its shallow depth leads to misalignment and easy displacement. The metal sheet is also difficult to fix within the groove, resulting in insufficient bonding accuracy between the glass cover and the metal sheet and a lower bonding yield. Consequently, the operator needs to repeatedly place and adjust the position of the metal sheet, increasing time costs and reducing the efficiency of bonding between the glass cover and the metal sheet. Utility Model Content

[0003] Therefore, it is necessary to address the above-mentioned shortcomings by providing a spring-loaded bonding clamp that offers high bonding accuracy and yield, improves bonding efficiency, and reduces bonding costs.

[0004] A spring-loaded bonding clamp, comprising:

[0005] A base plate, the upper surface of which is provided with at least one support column for supporting the metal parts to be bonded;

[0006] A movable positioning plate is located above the base plate and has at least one through hole for corresponding support column to pass through. The top surface of the support column and the inner surface of the through hole together form a metal part receiving space.

[0007] At least one pair of elastic limiting components are arranged on both sides of the movable positioning plate. The elastic limiting components include a positioning post that slides through the movable positioning plate and is inserted into the base plate, a locking member that is limited and fixedly connected to the positioning post, and a spring that is sleeved on the positioning post and located between the base plate and the movable positioning plate. The spring elastically abuts against the upper surface of the base plate and the lower surface of the movable positioning plate respectively. When the movable positioning plate is pressed, it moves closer to the base plate so that the metal part on the support post protrudes from the through hole.

[0008] A glass placement base is located above a movable positioning plate. The lower surface of the glass placement base has an installation groove for receiving a glass cover plate. An air pipe connector connected to an external air pressure device is fixed on the side of the glass placement base. An air passage connected to the air pipe connector is opened inside the glass placement base. An air intake hole connected to the air passage is opened on the top surface of the installation groove.

[0009] In one embodiment, the positioning column includes a column body that slides through the movable positioning plate and is inserted into the base plate, and a positioning head that is fixed to the top of the column body and abuts against the upper surface of the movable positioning plate. The base plate has a first through hole for inserting the column body, and the movable positioning plate has a second through hole corresponding to the first through hole for inserting the column body. The glass placement base has a positioning hole for accommodating the positioning head and at least penetrating the lower surface of the glass placement base.

[0010] In one embodiment, the number of air intake holes is 1, and the air intake hole is located in the middle of the top surface of the mounting groove and communicates with the air passage.

[0011] In one embodiment, the number of air intake holes is greater than 1, and the multiple air intake holes are evenly distributed on the top surface of the mounting groove and communicate with the air passage.

[0012] In one embodiment, the top surface of the mounting groove is provided with an air intake groove that communicates with the air intake hole.

[0013] In one embodiment, the air intake groove has a U-shaped structure, or an scalloped structure, or a wave-shaped structure, or a continuous V-shaped structure, or a grid-like structure.

[0014] In one embodiment, the lower surface of the glass placement base has at least one retrieval notch that extends through the side of the glass placement base.

[0015] In one embodiment, the movable positioning plate is further provided with at least one loading notch corresponding to and communicating with the through hole and penetrating the side of the movable positioning plate, the loading notch penetrating the upper and lower surfaces of the movable positioning plate.

[0016] In one embodiment, the locking member is a locking screw, the bottom of the positioning post has a threaded hole, the locking member is inserted into the threaded hole through the first through hole and threadedly connected to the positioning post, the lower surface of the base plate has a recessed groove communicating with the first through hole, the screw head of the locking member is received in the recessed groove and abuts against the top surface of the recessed groove.

[0017] In one embodiment, when the spring reaches its maximum compression, the distance between the top surface of the support column and the upper surface of the movable positioning plate is less than 0.15 mm.

[0018] The spring-pressing bonding fixture of this utility model, by setting a spring between the base plate and the movable positioning plate, allows for a larger depth of the metal part receiving space when the movable positioning plate is not pressed down. After the metal part is placed on top of the support column, it is not easy for it to fall out of the metal part receiving space and shift. By pressing the glass placement base, the spring is compressed, and the support column pushes the metal part out of the metal part receiving space, so that the metal part contacts and bonds with the glass cover. This improves the accuracy and yield of bonding between the glass cover and the metal part, eliminates the need for multiple adjustments to the position of the metal part, reduces the difficulty of bonding between the glass cover and the metal part, reduces time costs, and improves the efficiency of bonding between the glass cover and the metal part. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a spring-pressing fitting clamp in one embodiment of the present invention;

[0020] Figure 2 This is a side view of a spring-pressing fitting fixture in one embodiment of the present invention;

[0021] Figure 3 This is an exploded view of the spring-pressing fitting fixture in one embodiment of the present invention;

[0022] Figure 4 This is a cross-sectional view of a spring-pressing fitting clamp in one embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the glass placement base in one embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the glass placement base after it adsorbs the glass cover plate in one embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure after the glass cover plate and the metal parts are attached. Detailed Implementation

[0026] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0027] Please combine Figure 1-4This utility model discloses a spring-pressing bonding clamp 10 with high bonding accuracy and yield, improved bonding efficiency, and reduced bonding cost. The spring-pressing bonding clamp 10 includes a base plate 100, a movable positioning plate 200, at least a pair of elastic limiting components 300 disposed opposite to both sides of the movable positioning plate 200, and a glass placement base 400. To prevent the metal part 20 from falling off the clamp before installation, in this embodiment, the clamp is placed upright. After placement, the movable positioning plate 200 is located above the base plate 100, and the glass placement base 400 is located above the movable positioning plate 200, so that by pressing down on the glass placement base 400, the glass cover plate 30 on the glass placement base 400 is bonded to the metal part 20 below it. The upper surface of the base plate 100 refers to the side of the base plate 100 adjacent to the movable positioning plate 200, and the lower surface of the base plate 100 refers to the side of the base plate 100 facing away from the movable positioning plate 200. Correspondingly, the upper surface of the movable positioning plate 200 refers to the side of the movable positioning plate 200 facing away from the base plate 100, and the lower surface of the movable positioning plate 200 refers to the side of the movable positioning plate 200 adjacent to the base plate 100. The lower surface of the glass placement base 400 refers to the side of the glass placement base 400 adjacent to the movable positioning plate 200, and the upper surface of the glass placement base 400 refers to the side of the glass placement base 400 facing away from the movable positioning plate 200. This explanation can be used as a reference in all embodiments.

[0028] For specific details, please refer to... Figure 1-7In this embodiment, the upper surface of the base plate 100 is provided with at least one support post 110 for receiving and fitting the metal part 20. The movable positioning plate 200 is provided with at least one through hole 210 for correspondingly passing through the support post 110. The top surface of the support post 110 and the inner surface of the through hole 210 together form a metal part receiving space 220. The elastic limiting assembly 300 includes a positioning post 310 that slides through the movable positioning plate 200 and is inserted into the base plate 100, a locking member 320 that limits and cooperates with the base plate 100 and is fixedly connected to the positioning post 310, and a spring 330 that is sleeved on the positioning post 310 and located between the base plate 100 and the movable positioning plate 200. The spring 330 elastically abuts against the upper surface of the base plate 100 and the lower surface of the movable positioning plate 200 respectively. When the movable positioning plate 200 is pressed, it moves closer to the base plate 100 so that the metal part 20 on the support post 110 extends out from the through hole 210. The lower surface of the glass placement base 400 is provided with a mounting groove 410 for receiving the glass cover plate 30. A gas pipe connector 420 connected to an external air pressure device is fixed to the side of the glass placement base 400. An air passage 430 connected to the gas pipe connector 420 is provided inside the glass placement base 400. An air intake hole 440 connected to the air passage 430 is provided on the top surface of the mounting groove 410. In other words, in this embodiment, the glass placement base 400 positions the glass cover plate 30 by negative pressure adsorption to prevent the glass cover plate 30 from detaching from the glass placement base 400 when it is attached to the metal part 20 from above the movable positioning plate 200, thus ensuring the reliability of the glass cover plate 30's positioning.

[0029] In this embodiment, the length and compression performance of the spring 330 need to meet the following requirements: when the movable positioning plate 200 rises to its maximum position (the movable positioning plate 200 is pressed against the positioning post 310 and can no longer move away from the base plate 100, at which point the spring 330 reaches its maximum elongation under the joint constraint of the movable positioning plate 200 and the base plate 100), the top surface of the support post 110 is located inside the through hole 210, so that the inner surface of the through hole 210 and the support post 110 together limit the metal part 20; when the movable positioning plate 200 descends to its maximum position (the movable positioning plate 200 is pressed down until the spring 330 can no longer be compressed, at which point the spring 330 reaches its maximum compression under the joint constraint of the movable positioning plate 200 and the base plate 100), the upper surface of the metal part 20 placed on the support post 110 is higher than the upper surface of the movable positioning plate 200, and a part of the metal part 20 extends out from the through hole 210 so that the metal part 20 contacts the glass cover plate 30. The positioning post 310, through its connection with the locking member 320, limits the movement between the movable positioning plate 200 and the base plate 100, while also defining the sliding path of the movable positioning plate 200. Furthermore, the positioning post 310 supports the spring 330, defining its compression or extension direction to prevent twisting during deformation. Preferably, when the spring 330 reaches its maximum compression, the distance between the top surface of the support post 110 and the upper surface of the movable positioning plate 200 is less than 0.15 mm, ensuring that after the movable positioning plate 200 is pressed down, the upper surface of the metal part 20 can extend out of the through hole 210 and fit against the glass cover plate 30.

[0030] During the bonding process between the glass cover plate 30 and the metal part 20, the metal parts 20 to be bonded are first placed one by one into the metal part receiving space 220, so that the metal parts 20 are bonded to the top surface of the support column 110. At the same time, the lower surface of the glass placement base 400 is placed upward, so that the groove opening of the mounting groove 410 is facing upward. The glass cover plate 30 is placed into the mounting groove 410, and the air pipe connector 420 is connected to the external air pressure device, so that a negative pressure is formed in the air suction hole 440 and the mounting groove 410. Through the action of negative pressure, the glass cover plate 30 is firmly adsorbed into the mounting groove 410. Subsequently, the glass placement base 400 with the glass cover plate 30 is flipped over so that the glass cover plate 30 is located at the lower part of the glass placement base 400. The glass placement base 400 is placed on the movable positioning plate 200 and aligned with the movable positioning plate 200. The glass placement base 400 is pressed down so that the glass placement base 400 moves the glass cover plate 30 and the movable positioning plate 200 toward the base plate 100. During this process, the spring 330 is compressed by the combined pressure of the movable positioning plate 200 and the base plate 100. The depth of the metal part receiving space 220 gradually decreases, and the metal part 20 extends out of the through hole 210 and adheres to the surface of the glass cover plate 30. When the glass placement base 400 is released, the spring 330 returns to its original position and pushes the movable positioning plate 200 and the glass placement base 400 upward, causing the metal part 20 to leave the support column 110. The depth of the metal part receiving space 220 gradually increases to facilitate the placement of new metal parts 20 into the metal part receiving space 220 during subsequent bonding operations. At this time, the glass placement base 400 is flipped over again, and the air pipe connector 420 is disconnected from the air circuit of the external air pressure device, so that the glass cover plate 30 with the metal part 20 attached can be removed from the mounting groove 410.

[0031] The aforementioned spring-pressing bonding clamp 10, by setting a spring 330 between the base plate 100 and the movable positioning plate 200, ensures that when the movable positioning plate 200 is not pressed down, the depth of the metal part receiving space 220 is relatively large. After the metal part 20 is placed on top of the support column 110, it is not easy for it to fall out of the metal part receiving space 220 and shift. By pressing the glass placement base 400, the spring 330 is compressed, and the support column 110 pushes the metal part 20 out of the metal part receiving space 220, so that the metal part 20 contacts and bonds with the glass cover plate 30. This improves the accuracy and yield of bonding between the glass cover plate 30 and the metal part 20, eliminates the need for multiple adjustments to the position of the metal part 20, reduces the difficulty of bonding between the glass cover plate 30 and the metal part 20, reduces time costs, and improves the efficiency of bonding between the glass cover plate 30 and the metal part 20.

[0032] The base plate 100 is used to support the other components. The number of support columns 110 on the base plate 100 can be determined according to the number of metal parts 20 to be attached to the glass cover plate 30. That is, the number of support columns 110 on the base plate 100 is the same as the number of metal parts 20 to be attached to the glass cover plate 30, and the position of the support columns 110 on the base plate 100 is adapted to the position of the metal parts 20 to be attached to the glass cover plate 30. Preferably, in this embodiment, four support columns 110 are spaced apart on the upper surface of the base plate 100, and the top surface of the support columns 110 forms a support surface for supporting the metal parts 20. Correspondingly, in this embodiment, four through holes 210 are provided on the movable positioning plate 200, penetrating the upper and lower surfaces of the movable positioning plate 200. In this way, the support columns 110 on the base plate 100 and the through holes 210 on the movable positioning plate 200 together form four metal part receiving spaces 220, thereby attaching four metal parts 20 to the glass cover plate 30 at one time. In actual production, the number and position of the support columns 110 on the base plate 100 can be adjusted according to the number and position of the metal parts 20 that need to be attached to the glass cover plate 30, and the number and position of the through holes 210 on the movable positioning plate 200 can also be adjusted to meet the product attachment requirements. Depending on the materials of the base plate 100 and the support columns 110, when the base plate 100 and the support columns 110 are both made of metal, the base plate 100 and the support columns 110 are integrally formed, or they are connected by welding, or they are connected by screws; when at least one of the base plate 100 and the support columns 110 is made of non-metallic materials, they can be connected by one of the following methods: integral forming, adhesive bonding, screw connection, etc.

[0033] In this embodiment, the base plate 100, the movable positioning plate 200, and the glass placement base 400 are all rectangular plate structures. The movable positioning plate 200 includes a fitting area corresponding to the mounting groove 410 on the glass placement base 400 and an elastic positioning area surrounding the fitting area. Each through hole 210 is located within the fitting area, and the elastic limiting components 300 are disposed within the elastic positioning area. The elastic limiting components 300 are evenly distributed within the elastic positioning area to ensure that the movable positioning plate 200 is evenly stressed during lifting and lowering, avoiding poor fitting of the metal parts 20 due to the shaking of the movable positioning plate 200. In one embodiment, an elastic limiting component 300 is provided at the middle of each of the two short sides of the movable positioning plate 200. In another embodiment, an elastic limiting component 300 is provided at each of the four corners of the movable positioning plate 200.

[0034] In this embodiment, the metal part 20 to be bonded has an L-shaped structure, including a horizontal part 201 for bonding to the surface of the glass cover plate 30 and a vertical part 202 that is perpendicular to and connected to the horizontal part 201. When the metal part 20 is positioned, the lower surface of the horizontal part 201 of the metal part 20 is bonded to the top surface of the support column 110, and the vertical part 202 of the metal part 20 is bonded to the side surface of the support column 110. The size of the through hole 210 needs to meet the following requirement: when the metal part 20 is placed on the top of the support column 110, the side surface of the metal part 20 (each surface of the metal part 20 adjacent to the inner wall of the through hole 210) is bonded to the inner surface of the through hole 210, or the distance between the side surface of the metal part 20 and the inner surface of the through hole 210 is less than 0.1 mm. This facilitates the placement of the metal part 20 into the metal part receiving space 220 while limiting the position of the metal part 20. Furthermore, the through hole 210 is a square hole, and each corner of the through hole 210 is provided with an arc-shaped notch 230. The arc-shaped notch 230 penetrates the upper and lower surfaces of the movable positioning plate 200 and is used as an exhaust hole. In this way, during the process of the metal part 20 being placed into the metal part receiving space 220, the air in the metal part receiving space 220 can be discharged through the arc-shaped notch 230, thereby reducing the difficulty of placing the metal part 20 into the metal part receiving space 220.

[0035] In addition, in this embodiment, the movable positioning plate 200 is also provided with at least one loading notch 240 corresponding to and communicating with the through hole 210 and penetrating the side of the movable positioning plate 200. The loading notch 240 penetrates the upper and lower surfaces of the movable positioning plate 200. Preferably, the movable positioning plate 200 is provided with four loading notches 240 corresponding to each through hole 210. In this way, during the loading process of the metal part 20, after the movable positioning plate 200 is pressed down, the L-shaped metal part 20 can be pushed into the metal part receiving space 220 through the loading notch 240, and the metal part 20 can cooperate with the support column 110 to realize the loading of the metal part 20.

[0036] To limit the movement between the glass placement base 400 and the movable positioning plate 200, the positioning post 310 includes a post body 311 that slides through the movable positioning plate 200 and is inserted into the base plate 100, and a positioning head 312 fixed to the top of the post body 311 and abutting against the upper surface of the movable positioning plate 200. The base plate 100 has a first through hole 120 for inserting the post body 311, and the movable positioning plate 200 has a second through hole 250 corresponding to the first through hole 120 for passing through the post body 311. The glass placement base 400 has a positioning hole 450 for accommodating the positioning head 312 and at least penetrating the lower surface of the glass placement base 400. In one embodiment, the depth of the positioning hole 450 is less than the thickness of the glass placement base 400. In another embodiment, the depth of the positioning hole 450 is equal to the thickness of the glass placement base 400. In this embodiment, the number of positioning holes 450 is the same as the number of positioning posts 310 (and also the same as the number of elastic limiting components 300). The position of the positioning holes 450 is adapted to the position of the positioning posts 310. By setting a positioning head 312 on the post body 311 to limit and abut against the upper surface of the movable positioning plate 200, and opening positioning holes 450 on the glass placement base 400, when the glass placement base 400 is placed on the movable positioning plate 200, the positioning head 312 and the positioning hole 450 can be used to make the glass placement base 400 and the movable positioning plate 200 quickly aligned, and limit the path of the glass placement base 400 when it is pressed down, so as to avoid the problem of poor contact between the glass cover plate 30 and the metal part 20 caused by the glass placement base 400 being offset relative to the movable positioning plate 200.

[0037] Furthermore, the locking component 320 is a locking screw, and the bottom of the positioning post 310 has a threaded hole 313. The locking component 320 is inserted into the threaded hole 313 through the first through hole 120 and is threadedly connected to the positioning post 310. The lower surface of the base plate 100 has a recess 130 communicating with the first through hole 120. The screw head of the locking component 320 is received in the recess 130 and abuts against the top surface of the recess 130. In this way, while limiting the relative position between the movable positioning plate 200 and the base plate 100 by the threaded engagement between the locking component 320 and the positioning post 310, the positioning post 310 is also fixed. In addition, by setting the recess 130 below the first through hole 120, the problem of the screw head of the locking component 320 (locking screw) protruding from the lower surface of the base plate 100 and scratching the external placement surface can be avoided.

[0038] In one embodiment, the upper surface of the base plate 100 is provided with a first limiting groove that is coaxial with and communicates with the first through hole 120, and the lower surface of the movable positioning plate 200 is provided with a second limiting groove that is coaxial with and communicates with the second through hole 250. The bottom end of the spring is located in the first limiting groove, and the top end of the spring is located in the second limiting groove. In this way, the spring can be positioned by the joint constraint of the first limiting groove and the second limiting groove to prevent the two ends of the spring from moving relative to the base plate and the movable positioning plate.

[0039] To achieve the adsorption of the glass cover plate 30 by the glass placement base 400, in one embodiment, the number of suction holes 440 is one, and the suction hole 440 is located in the middle of the top surface of the mounting groove 410 and communicates with the air passage 430. In another embodiment, the number of suction holes 440 is greater than one, and multiple suction holes 440 are evenly distributed on the top surface of the mounting groove 410 and communicate with the air passage 430. Furthermore, the top surface of the mounting groove 410 is provided with a suction groove 460 that communicates with the suction holes 440. In other words, in this solution, a single suction hole 440 can be opened in the center of the top surface of the mounting groove 410, or multiple suction holes 440 can be evenly opened on the top surface of the mounting groove 410, or a suction groove 460 can be opened on the top surface of the mounting groove 410 while simultaneously opening a single suction hole 440 in the center of the top surface of the mounting groove 410, or multiple suction holes 440 can be evenly opened on the top surface of the mounting groove 410 while simultaneously opening a suction groove 460 on the top surface of the mounting groove 410. By opening a suction groove 460 on the top surface of the mounting groove 410, the negative pressure adsorption area of ​​the glass placement base 400 on the glass cover plate 30 is increased, which is beneficial for the glass cover plate 30 to be evenly stressed and adhered to the top surface of the mounting groove 410. Furthermore, the suction groove 460 can have a U-shaped structure, an AX-shaped structure, a wave-shaped structure, a continuous V-shaped structure, or a grid-like structure. Of course, the suction groove 460 can also be other structures that communicate with the suction hole 440. The coverage area of ​​the suction groove 460 on the top surface of the mounting groove 410 needs to meet the requirement that when the glass cover plate 30 is placed in the mounting groove 410, the suction groove 460 is completely covered by the glass cover plate 30 to avoid the problem of unstable air pressure adsorption of the glass cover plate 30 by the glass placement base 400 due to air leakage from the suction groove 460, and to ensure the stability of the adsorption of the glass cover plate 30 in the glass placement base 400.

[0040] To reduce the difficulty of picking up and placing the glass placement base 400, in one embodiment, the lower surface of the glass placement base 400 is provided with at least one picking / placing notch 470 penetrating through the side of the glass placement base 400. Preferably, one picking / placing notch 470 is provided on each of the two long sides and two short sides of the lower surface of the glass placement base 400 (a total of four picking / placing notches 470). In this way, the glass placement base 400 can be grasped, moved, or flipped by inserting a finger or tool into the picking / placing notch 470. In actual operation, a robotic arm can also be inserted into the picking / placing notch 470 to realize the automatic picking and placing of the glass placement base 400. The picking / placing notch 470 provides a gripping part for the robotic arm to grasp the glass placement base 400.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A spring-pressing type fitting clamp, characterized in that, include: A base plate, the upper surface of which is provided with at least one support column for supporting the metal parts to be bonded; A movable positioning plate is located above the base plate and has at least one through hole for corresponding support column to pass through. The top surface of the support column and the inner surface of the through hole together form a metal part receiving space. At least one pair of elastic limiting components are arranged on both sides of the movable positioning plate. The elastic limiting components include a positioning post that slides through the movable positioning plate and is inserted into the base plate, a locking member that is limited and fixedly connected to the positioning post, and a spring that is sleeved on the positioning post and located between the base plate and the movable positioning plate. The spring elastically abuts against the upper surface of the base plate and the lower surface of the movable positioning plate respectively. When the movable positioning plate is pressed, it moves closer to the base plate so that the metal part on the support post protrudes from the through hole. A glass placement base is located above a movable positioning plate. The lower surface of the glass placement base has an installation groove for receiving a glass cover plate. An air pipe connector connected to an external air pressure device is fixed on the side of the glass placement base. An air passage connected to the air pipe connector is opened inside the glass placement base. An air intake hole connected to the air passage is opened on the top surface of the installation groove.

2. The spring-pressing fitting clamp according to claim 1, characterized in that, The positioning column includes a column body that slides through the movable positioning plate and is inserted into the base plate, and a positioning head that is fixed to the top of the column body and abuts against the upper surface of the movable positioning plate. The base plate has a first through hole for inserting the column body, and the movable positioning plate has a second through hole corresponding to the first through hole for inserting the column body. The glass placement base has a positioning hole for accommodating the positioning head and at least penetrating the lower surface of the glass placement base.

3. The spring-pressing fitting clamp according to claim 1, characterized in that, The number of air intake holes is 1, and the air intake hole is located in the middle of the top surface of the mounting groove and communicates with the air passage.

4. The spring-pressing fitting clamp according to claim 1, characterized in that, The number of air intake holes is greater than 1, and multiple air intake holes are evenly distributed on the top surface of the mounting groove and communicate with the air passage.

5. The spring-pressing fitting clamp according to claim 3 or 4, characterized in that, The top surface of the mounting groove is provided with an air intake groove that communicates with the air intake hole.

6. The spring-pressing fitting clamp according to claim 5, characterized in that, The air intake groove has a U-shaped structure, or an scalloped structure, or a wave-shaped structure, or a continuous V-shaped structure, or a grid-like structure.

7. The spring-pressing fitting clamp according to claim 1, characterized in that, The lower surface of the glass placement base has at least one retrieval notch that extends through the side of the glass placement base.

8. The spring-pressing fitting clamp according to claim 1, characterized in that, The movable positioning plate is also provided with at least one loading notch that corresponds to and communicates with the through hole and penetrates the side of the movable positioning plate. The loading notch penetrates the upper and lower surfaces of the movable positioning plate.

9. The spring-pressing fitting clamp according to claim 2, characterized in that, The locking component is a locking screw. The bottom of the positioning post has a threaded hole. The locking component is inserted into the threaded hole through the first through hole and is threadedly connected to the positioning post. The lower surface of the base plate has a recessed groove that communicates with the first through hole. The screw head of the locking component is received in the recessed groove and abuts against the top surface of the recessed groove.

10. The spring-pressing fitting clamp according to claim 1, characterized in that, When the spring reaches its maximum compression, the distance between the top surface of the support column and the upper surface of the movable positioning plate is less than 0.15 mm.

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