Adjustable distance pressure maintaining jig

Abstract

An adjustable distance pressure maintaining jig. The adjustable distance pressure maintaining jig comprises a base, a lower pressing plate assembly, and an upper pressing plate assembly. The base comprises a base plate, an adjusting groove, and adjusting holes. A plurality of adjusting holes are provided through the four side walls of the adjusting groove, and an adjusting shaft is movably inserted into the adjusting holes. The lower pressing plate assembly comprises an adjusting plate, a pressure maintaining spring, a lower pressing plate, and a connecting piece. The adjusting plate is the same shape as the adjusting groove, the size of the adjusting plate is smaller than the size of the adjusting groove, and a gap is provided between the side walls of the adjusting plate and the adjusting groove. By moving the adjusting shafts in the adjusting holes in four directions, the adjusting shafts in multiple different positions can be pushed against and push the adjusting plate as needed to adjust the position of the lower pressing plate provided on the adjusting plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pressure maintaining jigs, and particularly relates to a pressure maintaining jig with adjustable distance. BACKGROUND

[0002] In production, glue is often used to bond two objects, and the relative position, fitting gap and glue layer thickness of the two bonded objects after bonding are required. Therefore, the pressure maintaining jig is used to press and clamp the bonded objects before the glue solidifies, so as to ensure the consistency of the relative position, fitting gap and glue layer thickness of the two objects after the glue solidifies.

[0003] The pressure maintaining jig in the prior art generally supports the up-down movement of the upper pressing plate through a guide shaft. However, the guide shaft has a gap between the upper pressing plate and the lower pressing plate in order to realize the up-down movement, so that the upper pressing plate and the lower pressing plate cannot be completely aligned. The pressure maintaining jig disclosed in CN201621027007.3 is shown in the drawings of the patent, and the upper pressing plate and the lower pressing plate are connected by sliding through the guide shaft, so that the upper pressing plate is difficult to align with the lower pressing plate, which affects the pressure maintaining quality of the glue. Moreover, when the upper pressing plate and the lower pressing plate are not aligned, the position of one of the pressing plates cannot be quickly adjusted. In addition, the upper pressing plate and the lower pressing plate in the prior art are generally connected by a buckle. When it is necessary to unlock, the buckle is generally difficult to be automatically unlocked by a mechanical method, and the end of the buckle needs to be forced to be buckled. Generally, manual operation is still needed, which is low in efficiency and difficult to realize automation. SUMMARY

[0004] Therefore, the present application provides a pressure maintaining jig with adjustable distance to solve the above technical problems.

[0005] A pressure maintaining jig with adjustable distance comprises a base, a lower pressing plate assembly arranged on the base, and an upper pressing plate assembly arranged on the base. The base comprises a base plate, an adjusting groove arranged on the base plate, and a plurality of adjusting holes arranged on the side walls of the adjusting groove. The plurality of adjusting holes are arranged through the four side walls of the adjusting groove, and an adjusting shaft is movably arranged in the adjusting hole. The lower pressing plate assembly comprises an adjusting plate arranged in the adjusting groove, a plurality of pressure maintaining springs arranged on the adjusting plate, a lower pressing plate arranged on the pressure maintaining springs, and two connecting members connecting the adjusting plate and the lower pressing plate. The adjusting plate has the same shape as the adjusting groove, the size of the adjusting plate is smaller than the size of the adjusting groove, and the side walls of the adjusting plate are arranged with a gap between the side walls of the adjusting groove.

[0006] Further, the base further comprises two mounting slots arranged on the side walls at two ends of the base plate respectively, two locking assemblies arranged in the mounting slots respectively, and two through holes on the adjusting slots, the locking assembly comprises two limiting columns arranged in the mounting slots, a locking piece arranged in the mounting slot, and a locking spring arranged between the locking piece and the mounting slot.

[0007] Further, the locking piece is in T-shaped structure, and a locking hole for inserting the upper pressing plate assembly is arranged on the locking piece, and the side wall of the locking hole is connected with the locking piece in a slope manner.

[0008] Further, the lower pressing plate assembly further comprises a plurality of limiting blocks arranged on the side wall of the lower pressing plate, and two air holes penetrating through the adjusting plate and the lower pressing plate, and the limiting blocks are higher than the end surface of the lower pressing plate.

[0009] Further, the upper pressing plate assembly comprises a slide rail slide block assembly arranged vertically on the base plate, an upper pressing plate arranged on the slide rail slide block assembly in a sliding manner, a reset spring arranged between the upper pressing plate and the base plate, two locking shafts arranged on the upper pressing plate, and a quick clamp arranged on the upper pressing plate.

[0010] Further, the moving direction of the slide rail slide block assembly is perpendicular to the plane of the base plate, the extension direction of the reset spring is perpendicular to the plane of the base plate, and the reset spring pushes the upper pressing plate away from the base plate by the elastic force of the reset spring in a free state.

[0011] Further, the upper pressing plate is further provided with two positioning pins.

[0012] Further, one end of the locking shaft is arranged in the upper pressing plate, and the other end is arranged towards the base plate and is in a round corner shape, and the diameter of the round corner end of the locking shaft is greater than the diameter of the locking shaft, so as to form a clamping step on the locking shaft.

[0013] Compared with the prior art, the adjusting plate and the adjusting groove of the adjustable distance holding jig provided by the present application are both rectangular structures, the size of the adjusting plate is smaller than that of the adjusting groove, and a gap is arranged between the side wall of the adjusting plate and the adjusting groove. A plurality of adjusting holes are arranged on the four side walls of the adjusting groove and are arranged in a penetrating manner. An adjusting shaft is arranged in the adjusting hole. By moving the adjusting shaft in the adjusting hole in four directions, the adjusting shafts at different positions are pushed against and push the adjusting plate as required to adjust the position of the lower pressing plate arranged on the adjusting plate. In addition, the side wall of the locking hole is connected with the locking piece through a slope, and the end of the locking shaft towards the base plate is arranged in a round corner, so that the locking shaft is pressed downward to extrude and push the locking piece, so that the clamping step is clamped in the hole of the locking hole, so that the upper pressing plate cannot be moved, and automatic locking is realized. Moreover, the unlocking is convenient and does not have a complex operation. Only the locking piece needs to be pressed, and the unlocking is realized through a mechanical device. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The structure diagram of the adjustable distance holding jig provided by the present application is shown.

[0015] Figure 2 The structure diagram of the adjustable distance holding jig provided by the present application is shown. Figure 1 The structure diagram of the adjustable distance holding jig provided by the present application is shown.

[0016] Figure 3 The structure diagram of the adjustable distance holding jig provided by the present application is shown. Figure 1 The structure diagram of the adjustable distance holding jig provided by the present application is shown.

[0017] Figure 4 The structure diagram of the adjustable distance holding jig provided by the present application is shown. Figure 1 The structure diagram of the adjustable distance holding jig provided by the present application is shown.

[0018] Figure 5 The structure diagram of the adjustable distance holding jig provided by the present application is shown. Figure 1 The structure diagram of the adjustable distance holding jig provided by the present application is shown.

[0019] Figure 6 The structure diagram of the adjustable distance holding jig provided by the present application is shown. Figure 1 The structure diagram of the adjustable distance holding jig provided by the present application is shown. DETAILED DESCRIPTION

[0020] The specific embodiments of the present application are further described below. It should be understood that the description of the embodiments of the present application herein is not used to limit the protection scope of the present application.

[0021] As Figures 1 to 6As shown in the figure, it is the structure schematic view of the adjustable distance holding fixture provided by the present application. The adjustable distance holding fixture comprises a base 10, a lower pressing plate assembly 20 arranged on the base 10, and an upper pressing plate assembly 30 arranged on the base 10. It is conceived that the adjustable distance holding fixture further comprises other functional modules, such as connecting assemblies, mounting assemblies, and the like, which are known to those skilled in the art and will not be described here in detail.

[0022] The base 10 comprises a base plate 11, two mounting grooves 12 arranged on the side walls at both ends of the base plate 11 respectively, two locking assemblies 13 arranged in the mounting grooves 12 respectively, an adjusting groove 14 arranged on the base plate 11, a plurality of adjusting holes 15 arranged on the side walls of the adjusting groove 14, and two through holes 16 on the adjusting groove 14.

[0023] The base plate 11 is used to carry the above-mentioned various functional modules, and therefore the base plate 11 is provided with various functional structures, such as shafts, through holes, and the like, to complete the mounting and assembly of the above-mentioned functional modules, which can be arranged according to actual needs and will not be described here in detail.

[0024] The mounting grooves 12 are located at both ends of the base plate 11 respectively and are used to arrange the locking assemblies 13. The locking assembly 13 comprises two limiting columns 131 inserted into the mounting grooves 12, a locking piece 132 arranged in the mounting groove 12, and a locking spring 133 arranged between the locking piece 132 and the mounting groove 12.

[0025] The limiting column 131 is used to resist the locking piece 132 and limit its position. The locking piece 132 has a T-shaped structure, so that the protrusions on both sides of the locking piece 132 can abut against the limiting column 131 to prevent it from falling out of the mounting groove 12. A locking hole 134 for inserting the upper pressing plate assembly 30 is formed in the locking piece 132, and the side wall of the locking hole 134 is connected with the locking piece 132 at an inclined surface, which has a guiding effect to facilitate automatic locking when the upper pressing plate assembly 30 is pressed down. The locking spring 133 is connected with the mounting groove 12 at one end and with the side wall of the locking piece 132 at the other end. In a free state, the locking piece 132 is driven by the elastic force of the locking spring 133 to move away from the mounting groove 12, so that the locking piece 132 abuts against the limiting column 131 and the locking hole 134 is clamped on the upper pressing plate assembly 30. The specific way of automatic clamping when pressed down will be described below in combination with the upper pressing plate assembly 30.

[0026] The adjusting groove 14 is in rectangular structure and used for placing the lower pressing plate assembly 20, and a plurality of adjusting holes 15 are arranged through the four side walls of the adjusting groove 14, the adjusting shafts are movably arranged in the adjusting holes 15, and the lower pressing plate assembly 20 is moved by the movement of the adjusting shafts to adjust the position. The through hole 16 is used for penetrating the suction pipe to connect the suction pipe and the lower pressing plate assembly 20.

[0027] The lower pressing plate assembly 20 comprises an adjusting plate 21 arranged in the adjusting groove 14, a plurality of pressure maintaining springs 22 arranged on the adjusting plate 21, a lower pressing plate 23 arranged on the pressure maintaining springs 22, two connecting members 24 connecting the adjusting plate 21 and the lower pressing plate 23, a plurality of limiting blocks 25 arranged on the side walls of the lower pressing plate 23, and two air holes 26 penetrating the adjusting plate 21 and the lower pressing plate 23.

[0028] The adjusting plate 21 is in rectangular structure and has the same shape as the adjusting groove 14, but the size of the adjusting plate 21 is smaller than that of the adjusting groove 14, so that the side walls of the adjusting plate 21 are arranged with gaps between the adjusting groove 14, so that the adjusting plate 21 can be slightly moved in the adjusting groove 14. When it is found that the upper pressing plate assembly 30 is not aligned with the lower pressing plate 23 during pressure maintaining, the adjusting shafts in the adjusting holes 15 in four directions are moved, the adjusting shafts in different positions are pushed against and pushed according to the needs, so that the position of the adjusting plate 21 is moved. Then, the position of the lower pressing plate 23 arranged on the adjusting plate 21 is adjusted, so that the lower pressing plate 23 is aligned with the upper pressing plate assembly 30, and the pressure maintaining quality is ensured. It is conceivable that how to know whether the upper pressing plate assembly 30 is aligned with the lower pressing plate 23 can be realized by manual method or by image recognition technology in the prior art, which should be the prior art and will not be described here.

[0029] The pressure maintaining spring 22 is located between the adjusting plate 21 and the lower pressing plate 23, and is used to adjust the pressure to control the size of the pressure maintaining force. One end of the lower pressing plate 23 is connected with the pressure maintaining spring 22, and the other end is recessed, which is recessed to better adapt to the workpiece to be placed, and can be set according to the need, or can be a plane. The connecting piece 24 is provided through the lower pressing plate 23 and the adjusting plate 21 to connect the lower pressing plate 23 and the adjusting plate 21, and the connecting piece 24 is not completely tightened, and the space for the lower pressing plate 23 to move up and down is left, so that the size of the pressure can be controlled by the pressure maintaining spring 22. The limiting block 25 is higher than the end surface of the lower pressing plate 23, so that after the workpiece is placed on the lower pressing plate 23, the limiting block 25 can abut against the periphery of the workpiece to achieve limiting. The air hole 26 is used to connect with the air pipe provided through the through hole 26, and the workpiece placed on the lower pressing plate 23 is adsorbed by air suction to fix the workpiece.

[0030] The upper pressing plate assembly 30 includes a slide rail slide block assembly 31 vertically arranged on the base plate 11, an upper pressing plate 32 slidably arranged on the slide rail slide block assembly 31, a reset spring 33 arranged between the upper pressing plate 32 and the base plate 11, two locking shafts 34 arranged on the upper pressing plate 32, and a quick clamp 35 arranged on the upper pressing plate 32.

[0031] The moving direction of the slide rail slide block assembly 31 is perpendicular to the plane of the base plate 11 to drive the upper pressing plate 32 to approach or move away from the lower pressing plate 23, and the slide rail can reduce the interval and prevent shaking to ensure the stability of the upper pressing plate 32. The upper pressing plate 32 is used to fix another workpiece, and two positioning pins 321 are arranged on the upper pressing plate 32, and the workpiece is inserted on the positioning pin 321 and clamped by the quick clamp 35 to be fixed on the upper pressing plate 32.

[0032] The extension direction of the reset spring 33 is perpendicular to the plane of the base plate 11, and the reset spring 33 pushes the upper pressing plate 32 away from the base plate 11 by its own elastic force in the free state, so that the upper pressing plate 32 always has an upward force.

[0033] The locking shaft 34 is inserted into the upper pressing plate 32 at one end and is rounded at the other end towards the base plate 11. The diameter of the rounded end of the locking shaft 33 is larger than that of the locking shaft 34, so that the locking shaft 33 is provided with a clamping step 341. The locking shaft 33 and the center axis of the locking hole 134 are parallel to each other and are not aligned in the free state. When the upper pressing plate 32 is pressed down, the locking shaft 34 is inserted into the mounting groove 12. Because the side wall of the locking hole 134 is connected to the locking piece 132 by a slope and the end of the locking shaft 34 towards the base plate 11 is rounded, the rounded end of the locking shaft 34 can abut against the slope between the side wall of the locking hole 134 and the locking piece 132. With continued pressing, the locking piece 13 can be squeezed and pushed, so that the locking spring 133 compresses the locking piece 13 to move. When passing through the locking hole 134, the locking piece 13 is in contact with the side wall of the locking shaft 34 under the action of the locking spring 133, and the upper pressing plate 32 and the locking shaft 34 are upwardly moved by the force of the reset spring 33, so that the clamping step 341 is clamped in the aperture of the locking hole 134, to prevent the upper pressing plate 32 from moving, thereby achieving automatic locking. When unlocking is needed, the locking piece 13 is only needed to be pressed, so that the clamping step 341 is not clamped in the aperture of the locking hole 134, and the upper pressing plate 32 is automatically lifted under the action of the reset spring 33, to achieve unlocking and upward movement. The unlocking by pressing the locking piece 13 is more convenient for being achieved by a mechanical device, such as a pneumatic cylinder.

[0034] Compared with the prior art, the adjusting plate 21 and the adjusting groove 14 of the adjustable distance holding jig provided by the present application are both rectangular structures, and the size of the adjusting plate 21 is smaller than that of the adjusting groove 14, so that a gap is provided between the side wall of the adjusting plate 21 and the adjusting groove 14. A plurality of adjusting holes 15 are provided on the four side walls of the adjusting groove 14 and are through holes. An adjusting shaft is inserted into the adjusting hole 15. By moving the adjusting shafts in the adjusting holes 15 in four directions, the adjusting shafts at different positions can be abutted and pushed according to needs, to adjust the position of the lower pressing plate 23 provided on the adjusting plate 21. Because the side wall of the locking hole 134 is connected to the locking piece 132 by a slope and the end of the locking shaft 34 towards the base plate 11 is rounded, the locking shaft 34 can be squeezed and pushed when pressed down, so that the clamping step 341 is clamped in the aperture of the locking hole 134, to prevent the upper pressing plate 32 from moving, thereby achieving automatic locking. Moreover, unlocking is convenient and does not have complex actions. Only the locking piece 13 needs to be pressed, which is convenient for being achieved by a mechanical device.

[0035] The above merely describes the preferred embodiments of the present application and is not used to limit the protection scope of the present application, and any modification, equivalent replacement or improvement within the spirit of the present application is covered within the protection scope of the present application.

Claims

1. An adjustable distance hold down fixture, comprising: The adjustable distance holding-down jig comprises a base, a lower pressing plate assembly arranged on the base, and an upper pressing plate assembly arranged on the base, the base comprises a base plate, an adjusting groove arranged on the base plate, a plurality of adjusting holes arranged on the side walls of the adjusting groove, two mounting grooves arranged on the side walls at both ends of the base plate respectively, and two locking assemblies arranged in the mounting grooves respectively, the plurality of adjusting holes are arranged through the four side walls of the adjusting groove, adjusting shafts are movably arranged in the adjusting holes, the locking assembly comprises two limiting columns arranged in the mounting grooves, a locking piece arranged in the mounting groove, and a locking spring arranged between the locking piece and the mounting groove, the locking piece is in T-shaped structure, the protrusions on both sides of the locking piece abut against the limiting columns to prevent falling out of the mounting groove, in the free state, the locking piece is driven to move away from the mounting groove by the elastic force of the locking spring, so that the locking piece abuts against the limiting column, a locking hole for inserting the upper pressing plate assembly is arranged on the locking piece, and the side wall of the locking hole and the locking piece are connected in slope, the lower pressing plate assembly comprises an adjusting plate arranged in the adjusting groove, a plurality of holding-down springs arranged on the adjusting plate, a lower pressing plate arranged on the holding-down springs, and two connecting pieces connecting the adjusting plate and the lower pressing plate, the adjusting plate is the same shape as the adjusting groove, the size of the adjusting plate is smaller than that of the adjusting groove, and the side walls of the adjusting plate and the adjusting groove are arranged with gaps, the upper pressing plate assembly comprises a slide rail slide block assembly arranged vertically on the base plate, an upper pressing plate arranged on the slide rail slide block assembly, a return spring arranged between the upper pressing plate and the base plate, two locking shafts arranged on the upper pressing plate, and a quick clamp arranged on the upper pressing plate, the moving direction of the slide rail slide block assembly is perpendicular to the plane of the base plate, the extension direction of the return spring is perpendicular to the plane of the base plate, the return spring pushes the upper pressing plate away from the base plate by its elastic force in the free state, one end of the locking shaft is inserted into the upper pressing plate, and the other end is towards the base plate and is arranged in a round corner, the diameter of the end of the locking shaft arranged in a round corner is larger than the diameter of the locking shaft, so as to form a clamping step on the locking shaft, when the upper pressing plate is pressed down, the locking shaft is inserted into the mounting groove, the end of the locking shaft arranged in a round corner can abut against the slope between the side wall of the locking hole and the locking piece, and with continuous pressing, the locking piece can be squeezed and pushed, so that the locking spring compresses the locking piece to move, when passing through the locking hole, the locking piece is attached to the side wall of the locking shaft under the action of the locking spring, and the upper pressing plate and the locking shaft are upwards under the force of the return spring, so that the clamping step is clamped in the hole of the locking hole, so that the upper pressing plate cannot move,Realize the automatic locking, press the locking piece when need to unlock, make the carding step and the orifice of the locking hole not in the jam, the upper pressing plate will automatically rise under the action of the reset spring, realize the unlocking up.

2. The adjustable distance hold down fixture of claim 1, wherein: The base further comprises through holes on the two adjusting grooves.

3. The adjustable distance hold down fixture of claim 1, wherein: The lower pressing plate assembly further comprises a plurality of limiting blocks arranged on the side wall of the lower pressing plate, and two air holes penetrating through the adjusting plate and the lower pressing plate, the limiting blocks being higher than the end surface of the lower pressing plate.

4. The adjustable distance hold down fixture of claim 1, wherein: The upper pressing plate is further provided with two positioning pins.

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