Product pressure maintaining device and method

Abstract

The invention provides a product pressure maintaining device and method. The device comprises a bottom plate, a supporting frame movably arranged on the bottom plate, a downward pressing assembly and a pressing assembly, wherein the downward pressing assembly and the pressing assembly are arranged on the supporting frame. Wherein a positioning column and a guide column are arranged on the bottom plate, and the supporting frame is used for rotating around the bottom plate, so that products to be subjected to pressure maintaining are sequentially stacked on the outer side of the positioning column; the supporting frame is further used for rotating around the bottom plate so that the pressing assembly can be located over the product to be machined, the pressing assembly is used for driving the pressing assembly to press downwards, and the pressing assembly downwards presses the product to be subjected to pressure maintaining under the guiding effect of the guiding column. By means of the pressure maintaining device, pressure maintaining operation can be conducted on multiple products at the same time, the appearance of the products cannot be damaged, reliability is high, and quality is stable.

Description

Technical Field

[0001] The present invention relates to the technical field of product processing, and more specifically, to a product pressure maintaining device and method. Background Art

[0002] At present, in the assembly process of consumer electronic products, pressure holding is a common process, which plays a vital role in the assembly quality and performance of the product. For example, in laptops, mobile phones and other smart wearable devices, touch modules are usually set up, and each touch module has a pressure sensor. When dispensing and assembling them, special pressure holding tooling is required to maintain pressure.

[0003] Among them, the metal sheet of the sensor needs to be assembled with pads or other sheet components, and the wiring is welded on the pads. Therefore, when assembling the pads or other sheet components, they are first fixed with glue, and then the product is pressurized after dispensing the glue, and placed in a heating device for heating and shaping, so that the glue is cured by heat and the components are firmly glued to the metal sheet.

[0004] However, the pressure head used in traditional pressure-holding tooling can only hold pressure on one product at a time, and the pressure head is directly hit on the product during use. During long-term use, the pressure holding pressure will fluctuate, which may cause the product's pulling force to fail to meet the requirements or cause damage to the product's appearance. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to provide a product pressure holding device and method to solve the problems of the existing sheet products being easily damaged in appearance during the pressure holding process, affecting product yield and processing efficiency, etc.

[0006] The product pressure-maintaining device provided by the present invention comprises a base plate, a supporting frame movably arranged on the base plate, and a pressing assembly and a clamping assembly arranged on the supporting frame; wherein, a positioning column and a guide column are arranged on the base plate, and the supporting frame is used to rotate around the base plate so that the products to be pressure-maintained are stacked in sequence on the outside of the positioning column; the supporting frame is also used to rotate around the base plate so that the clamping assembly is located directly above the products to be processed, and the pressing assembly is used to drive the clamping assembly to press downward, and the clamping assembly presses the products to be pressure-maintained downward under the guidance of the guide column.

[0007] In addition, an optional technical solution is that the support frame includes a vertically distributed left support arm and a right support arm, and a fastening beam connecting the left support arm and the right support arm; a left limit block and a right limit block are arranged on both sides of the base plate; the lower end of the left support arm and the left limit block are connected with a key, and the lower end of the right support arm and the right limit block are connected with a key.

[0008] In addition, an optional technical solution is that the clamping assembly includes a pressure plate slidably connected between the left support arm and the right support arm, a limiting sleeve arranged on the pressure plate, and a left limiting hole and a right limiting hole located on both sides of the limiting sleeve; wherein the guide column includes a left guide column limited to move in the left limiting hole and a right guide column limited to move in the right limiting hole.

[0009] In addition, an optional technical solution is that the pressing assembly includes a driving rod arranged on a fastening beam, a fastening cover located at the lower end of the driving rod, and a left connecting rod and a right connecting rod located on both sides of the driving rod; wherein, the lower ends of the left connecting rod and the right connecting rod are fixedly connected to the pressure plate, and the upper ends of the left connecting rod and the right connecting rod are limited to move in the fastening beam.

[0010] In addition, an optional technical solution is that a cylindrical coil spring is provided between the fastening cover and the limiting sleeve; the driving rod is used to rotate under the action of an external force and drive the pressure plate to move up and down.

[0011] In addition, an optional technical solution is that a left guide column and a right guide column are extended at both ends of the pressure plate; a left guide rail groove is provided on the left support arm, and a right guide rail groove is provided on the right support arm; the left guide column is limited to move in the left guide rail groove, and the right guide groove is limited to move in the right guide rail groove.

[0012] In addition, an optional technical solution is that it also includes a spring pull rod assembly arranged between the right limit block and the right support arm; wherein the spring pull rod assembly includes a pull head, a pull rod located at one end of the pull head, a locating pin located at the end of the pull rod, and a cylindrical cavity, a pressure head and a spring located between the locating pin and the pull head; and a locating hole adapted to the locating pin is provided in the right support arm; the spring is used to push the locating pin into the locating hole to lock the position of the right support arm and the right limit block; the pull head is used to drive the pull rod to move in the cylindrical cavity, and to squeeze the spring through the pressure head so that the locating pin is moved out of the locating hole, and the position lock between the right support arm and the right limit block is released.

[0013] In addition, an optional technical solution is that at least three positioning columns are provided, a guide column is provided at the center of each positioning column, and the positioning column and the guide column are fixed in the base plate by threads; the inner side of the product to be pressurized is sleeved on the outer side of the positioning column, and a pressure block is provided between two adjacent products to be pressurized; a silicone pad is provided on the pressure block.

[0014] In addition, an optional technical solution is to further include a fastening plate arranged on the base plate; wherein a through hole corresponding to the position of the positioning column is arranged on the fastening plate; the fastening plate passes through the positioning column and the guide column, and is attached to the top of the base plate; the diameter of the positioning column located in the through hole is smaller than the diameter of the main body of the positioning column.

[0015] On the other hand, the present invention also provides a product pressure-maintaining method, including: releasing the position lock between the support frame and the base plate by a pull head, and rotating the support frame to one side of the base plate; sleeve the fastening plate on the positioning column and the guide column until it fits with the base plate, and detects the vertical state of the positioning column by the fastening plate; sleeve the products to be pressure-maintained on the outside of the positioning column in sequence until the height of the pressure-maintained products is flush with that of the positioning column; rotate the support frame to the top of the base plate, and lock the position of the support frame and the base plate; drive the clamping assembly to move downward by the pressing assembly, and clamp and maintain the pressure on the products to be pressure-maintained by the clamping assembly.

[0016] By utilizing the above-mentioned product pressure maintaining device and method, loading and unloading operations can be conveniently realized through the cooperation of the support frame and the bottom plate, and pressure maintaining operations can be performed on multiple products at the same time, avoiding the problems caused by the pressure head directly hitting the product. The device has a simple structure and is easy to operate. It can be applied to products of various shapes, and the product pressure maintaining quality is stable and reliable.

[0017] In order to achieve the above and related purposes, one or more aspects of the present invention include the features that will be described in detail later. The following description and the accompanying drawings describe some exemplary aspects of the present invention in detail. However, these aspects indicate only some of the various ways in which the principles of the present invention can be used. In addition, the present invention is intended to include all these aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By referring to the following description in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other objects and results of the present invention will become more apparent and easy to understand. In the accompanying drawings:

[0019] Figure 1 The structure of the product pressure maintaining device according to the embodiment of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 2 Schematic diagram of the bottom plate structure of the product pressure maintaining device according to an embodiment of the present invention;

[0021] Figure 3 The structure of the product pressure maintaining device according to the embodiment of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 4 is a schematic structural diagram of a product to be pressure maintained according to an embodiment of the present invention;

[0023] Figure 5 is a schematic structural diagram of a pressing block according to an embodiment of the present invention;

[0024] Figure 6 is a structural schematic diagram of a spring pull rod assembly according to an embodiment of the present invention;

[0025] Figure 7 is a diagram showing an open state of a product pressure-maintaining device according to an embodiment of the present invention;

[0026] Figure 8 Flow chart of a product pressure maintaining method according to an embodiment of the present invention.

[0027] The figure marks include: driving rod 1, fastening beam 2, left supporting arm 31, left guide rail groove 311, right supporting arm 32, right guide rail groove 321, left connecting rod 41, right connecting rod 42, fastening cover 51, limiting sleeve 52, cylindrical coil spring 6, pressure plate 7, left guide column 71, right guide column 72, bottom plate 8, left limiting block 81, right limiting block 82, fastening plate 9, groove 91, guide column 10, positioning column 11, spring pull rod assembly 12, pull head 121, cylindrical cavity 122, spring 123, pressure head 124, pull rod 125, positioning pin 126, product to be pressure-maintained 13, pressure block 14, silicone pad 141.

[0028] The same reference numerals throughout the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0029] In the following description, for the purpose of illustration, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is apparent that these embodiments may also be implemented without these specific details. In other examples, for ease of describing one or more embodiments, known structures and devices are shown in the form of block diagrams.

[0030] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] In order to solve the problems of the existing pressure-holding method for sheet products, such as the product appearance is easily damaged, affecting the product yield and processing efficiency, the present invention provides a product pressure-holding device and method, wherein a plurality of positioning columns and guide columns are arranged on the bottom plate, and the support frame can rotate around the bottom plate, so that the products to be pressure-held are stacked on the outside of the positioning columns in sequence or the clamping assembly is located directly above the products to be processed, and then the clamping assembly is driven downward by the pressing assembly, and the clamping assembly presses the products to be pressure-held downward under the guidance of the guide columns. The loading and unloading operations can be conveniently realized through the cooperation of the support frame and the bottom plate, and pressure-holding operations can be performed on multiple products at the same time, avoiding the problem caused by the pressure head directly hitting the products. The device has a simple structure and is easy to operate, and can be applicable to products of various shapes, and the product pressure-holding quality is stable and reliable.

[0032] In order to describe the product pressure maintaining device and method of the present invention in detail, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] Figures 1 to 3 The overall schematic structure of the product pressure maintaining device according to an embodiment of the present invention is shown from different angles.

[0034] like Figures 1 to 3 As shown together, the product pressure-maintaining device of the embodiment of the present invention includes a base plate 8, a support frame movably arranged at both ends of the base plate 8, and a pressing assembly and a clamping assembly arranged on the support frame; wherein, a positioning column 11 and a guide column 10 are arranged on the base plate 8, and the support frame is used to rotate around the base plate 8 so that the products 13 to be pressurized are stacked on the outside of the positioning column 11 in sequence, and the support frame is also used to rotate around the base plate 8 so that the clamping assembly is reset and located directly above the products to be processed. At this time, the pressing assembly can be driven by an external force, and the clamping assembly is pressed down by the pressing assembly, so that the clamping assembly presses the products 13 to be pressurized downward under the guidance of the guide column 10, and can simultaneously perform pressure-maintaining operations on multiple products 13 to be pressurized according to the height of the positioning column 11. The operation is simple and convenient, and the pressure-maintaining effect of the products is stable and the quality is reliable.

[0035] Among them, the support frame further includes a left support arm 31 and a right support arm 32 distributed vertically, and a fastening beam 2 transversely connecting the left support arm 31 and the right support arm 32. A raised left limit block 81 and a right limit block 82 are arranged on both sides of the bottom plate 8. The lower end of the left support arm 31 is connected to the left limit block 81 by a key, and the lower end of the right support arm 32 is connected to the right limit block 82 by a key. When there is no positioning between the support arms and the corresponding limit blocks, the left support arm 31 and the right support arm 32 can rotate around the left limit block 81 and the right limit block 82 respectively, so that the entire support frame and the downward pressing assembly and the clamping assembly on the support frame are deflected relative to the bottom plate 8. At this time, the installation of the guide column 10 and the positioning column 11 and the sequential loading of the products 13 to be pressurized can be facilitated. After the products are placed, the support frame can be reset as a whole and the position can be locked. Specifically Figure 7 The figure shows a schematic state of the support arm after rotating an angle according to an embodiment of the present invention.

[0036] Specifically, the clamping assembly includes a pressure plate 7 slidably connected between the left support arm 31 and the right support arm 32, a limiting sleeve 52 arranged on the pressure plate 7, and a left limiting hole and a right limiting hole located on both sides of the limiting sleeve 52; wherein, the guide column 10 includes a left guide column limited to move in the left limiting hole and a right guide column limited to move in the right limiting hole. When the pressure plate 7 drops to a certain height, the guide column will enter the corresponding limiting hole. It can be seen that the height of the guide column 10 needs to be greater than the height of the positioning column 11, so that the guide column 10 can play a certain guiding role while clamping the product.

[0037] Furthermore, the pressing assembly includes a driving rod 1 arranged on the fastening beam 2, a fastening cover 51 located at the lower end of the driving rod 1, and a left connecting rod 41 and a right connecting rod 42 located on both sides of the driving rod 1; wherein, the lower ends of the left connecting rod 41 and the right connecting rod 42 are fixedly connected to the pressure plate 7, and the upper ends of the left connecting rod 41 and the right connecting rod 42 are limited to move in the fastening beam 2, and a cylindrical coil spring 6 is arranged between the fastening cover 51 and the limiting sleeve 52; the driving rod 1 is used to rotate under the action of an external force, and drive the pressure plate 7 to move up and down, and the positioning and pressing of the product on the positioning column 11 is achieved through the pressure plate 7. Among them, when the end of the driving rod 1 is set to a hexagonal structure, the driving rod 1 can be twisted with a corresponding hexagonal socket wrench to maintain and release the pressure of the product, wherein the compression limit of the cylindrical coil spring 6 is certain, and has a good telescopic type, which can keep the pressure plate 7 and the product 13 to be maintained in a tight pressure state at all times.

[0038] Among them, during the pressing process of the pressing plate 7, the left connecting rod 41 and the right connecting rod 42 move on the fastening beam 2, which can only guide the pressing plate in the Z-axis direction, and there is still a risk of the pressing plate 7 tilting. For this reason, extended left guide columns 71 and right guide columns 72 are respectively provided at both ends of the pressing plate 7, and a long left guide groove 311 is provided on the left support arm 31, and a long right guide groove 321 is provided on the right support arm 32, so that the left guide column 71 is limited to move in the left guide groove 311, and the right guide column 72 is limited to move in the right guide groove 321, thereby guiding the pressing plate 7 in multiple directions so that it can evenly press the product on the positioning column 11.

[0039] Specifically, Figure 4 and Figure 5 The schematic structures of the product to be pressurized and the pressing block according to the embodiments of the present invention are respectively shown.

[0040] Combination Figures 1 to 5 As shown together, in the product pressure-maintaining device of the embodiment of the present invention, the product 13 to be pressure-maintained is a sheet structure, including two circular parts and a connecting part connecting the two circular parts. The corresponding positioning columns 11 are also arranged in two groups, and the positioning columns in each group include at least three. The positioning columns 11 and the guide columns 10 are fixed in the base plate 8 by threads. The position distribution of the positioning columns 11 is adapted to the internal structure of the circular part, so that the circular part can be sleeved on the outer side of the corresponding positioning columns 11. During use, the positioning columns 11 of different heights can be flexibly replaced according to the number of products 13 to be pressure-maintained, or the distribution position of the positioning columns 11 can be flexibly adjusted according to the shape of the product 13 to be pressure-maintained, so as to realize the pressure-maintaining positioning of the internally shaped products.

[0041] In addition, in order to prevent friction or damage between two adjacent products 13 to be pressurized during the pressurization process, a pressing block 14 can be placed between the two adjacent products 13 to be pressurized, and a silicone pad 141 can be set on the pressing block 14. For example, the side of the product 13 to be pressurized with the welding pad facing upwards is sleeved on the outside of the positioning column 11, and then the pressing block 14 is placed on the upper side of the product along the positioning column 11, and the silicone pad 141 on the pressing block 14 corresponds to the position of the welding pad of the product. In this way, the products 13 to be pressurized and the pressing block 14 are alternately prevented from moving until the overall height is flush with the positioning column 11, and the product can be pressurized by the pressing assembly and the clamping assembly.

[0042] In a specific embodiment of the present invention, in order to realize the rotation and positioning between the support frame and the bottom plate 8, a spring pull rod assembly 12 may be provided between the right limit block 82 and the right support arm 32, and / or between the left limit block 81 and the left support arm 31. Figure 6 FIG. 1 shows a schematic structure of a spring pull rod assembly 12 according to an embodiment of the present invention.

[0043] likeFigures 1 to 6 As shown together, taking the spring pull rod assembly 12 disposed between the right limit block and the right support arm 32 as an example, the spring pull rod assembly 12 includes a pull head 121 located outside the right limit block, a pull rod 125 located at one end of the pull head 121, a positioning pin 126 located at the end of the pull rod 125, and a cylindrical cavity 122, a pressure head 124 and a spring 123 located between the positioning pin 126 and the pull head 121; and a positioning hole adapted to the positioning pin 126 is provided in the right support arm 32; the spring 123 is used to adjust the spring force when the spring force acts on the pull head 121. The positioning pin 126 is pushed into the positioning hole to lock the position of the right support arm 32 and the right limit block. When the support arm needs to be rotated, the inner pull head 121 can be pulled outward, and the pull head 121 drives the pull rod 125 to move in the cylindrical cavity 122, and the spring 123 is squeezed by the pressure head 124 to move the positioning pin 126 out of the positioning hole. At this time, the position lock between the right support arm 32 and the right limit block is released, and the support frame can be rotated to one side of the bottom plate 8, which is convenient for loading and unloading the product 13 to be maintained. Otherwise, after the pull head 121 is released, the positioning pin 126 will be pushed into the corresponding positioning hole under the action of the spring 123 to achieve the positioning of the entire support frame.

[0044] It should be noted that during long-term use, the positioning column 11 and the guide column 10 may be tilted. In order to detect the abnormality of the positioning column 11 and ensure that the positioning column 11 and the guide column 10 are in a normal state each time the pressure is maintained, the product pressure maintaining device of the present invention also includes a fastening plate 9 arranged on the bottom plate 8; wherein, a through hole corresponding to the position of the positioning column 11 is arranged on the fastening plate 9. Before each pressure maintenance of the product, the fastening plate 9 is first passed through the positioning column 11 and the guide column 10 and attached to the top of the bottom plate 8, so as to facilitate To take and place the fastening plate 9, grooves 91 structures can be set on both sides thereof, which is convenient for taking and observing whether the fastening plate 9 is placed; further, in order to prevent the fastening plate 9 from being missed, the diameter of the positioning column 11 in the through hole can be set to be smaller than the diameter of the main body of the positioning column 11. At this time, if the fastening plate 9 is not prevented, the product 13 to be pressure-maintained will be directly mounted on the outside of the positioning column 11, which will cause the product to shake at the position where the diameter of the positioning column 11 is smaller, that is, the product cannot effectively fit with the outer side of the positioning column 11, thereby reminding the user that the fastening plate 9 is missed.

[0045] As a specific example, the above-mentioned base plate 8 and support frame and other components are made of high-strength metal materials, and the components are fixed with screws. Before starting to hold the product under pressure, the fastening plate 9 needs to pass through the positioning column 11 and the guide column 10, and slide along the positioning column 11 and the guide column 10 to the base plate 8, and then the products to be tested, such as metal sheets and metal pressure blocks 14 located between the metal sheets, can be placed in turn. After the fastening plate 9 is attached to the upper side of the base plate 8, the part of the positioning column 11 that passes through the fastening plate 9 is 2 mm less in diameter than the main part of the positioning column 11. At this time, if the product and the pressure block 14 are placed directly without using the fastening plate 9, the product will be displaced, thereby reminding the operator that the fastening plate 9 is not placed. Among them, the fastening plate 9 must be placed before maintaining the pressure. If the fastening plate 9 is stuck and cannot be lowered onto the bottom plate 8, it indicates that there is an abnormality in the position of the positioning column 11. It is necessary to check whether the positioning column is bent or deformed or the fixing screws are loose, etc. Therefore, the role of the fastening plate 9 is equivalent to a preliminary inspection of the positioning column to ensure that the state meets the requirements before performing the pressure maintaining operation.

[0046] Corresponding to the above-mentioned product pressure maintaining device, the present invention also provides a product pressure maintaining method.

[0047] Specifically, the product pressure maintaining method implemented by the present invention includes:

[0048] 1. Rotate the support frame of the product pressure holding device around the bottom plate to make room for the products to be pressure held to be stacked on the outside of the positioning column in sequence;

[0049] 2. When the height of the product to be pressurized is flush with the height of the positioning column, the support frame is rotated around the bottom plate again to reset the pressing assembly so that the pressing assembly is located directly above the product to be processed;

[0050] 3. The pressing assembly is driven downward by the pressing assembly, so that the pressing assembly presses the product to be pressurized downward under the guidance of the guide column.

[0051] As a specific example, Figure 8 A flow chart of a product pressure maintaining method according to an embodiment of the present invention is shown.

[0052] like Figure 8 As shown, the product pressure maintaining method of the embodiment of the present invention includes:

[0053] S100: releasing the position lock between the support frame and the bottom plate by using the pull head, and rotating the support frame to one side of the bottom plate;

[0054] S200: Sleeve the fastening plate on the positioning column and the guide column until it fits with the bottom plate, and detect the vertical state of the positioning column through the fastening plate;

[0055] S300: The products to be pressurized are sequentially sleeved on the outside of the positioning column until the height of the pressurized products is flush with that of the positioning column;

[0056] S400: rotating the support frame to above the bottom plate, and locking the positions of the support frame and the bottom plate;

[0057] S500: The pressing component is driven to move downward by the pressing component, and the product to be pressurized is pressed and maintained by the pressing component.

[0058] Specifically, you can first pull the pull head on the right limit block open to rotate the left and right support arms so that the right support arm rests against the end positioning pin of the pull rod. Then, pass the fastening plate through the positioning column and guide column on the bottom plate, and slide along the positioning column until it fits with the bottom plate. Then, slide the metal iron sheet (pad facing up) of the sensor to be pressure-maintained onto the fastening plate through the positioning column, and then place two metal pressing blocks (silicone pad facing down) along the four positioning columns on both sides and place them on the metal iron sheet of the sensor, and alternately place the metal iron sheet and the metal pressing blocks in sequence until they are flush with the positioning columns.

[0059] Then, hold the pull head on the top of the pull rod with your hand, rotate the left and right support arms to be perpendicular to the bottom plate, and the spring drives the pull rod to rebound, so that the locating pin at the end of the pull rod is inserted into the locating hole on the right support arm, so that the product pressure holding device is in a closed state, and then use a hexagonal socket wrench to turn the drive rod clockwise until the limit hole on the pressure plate passes through the guide column and contacts the top metal pressure block, and then slowly and forcefully turn the drive rod until the cylindrical coil spring is compressed to the limit.

[0060] When taking out the product after the pressure holding is completed, first use a hexagonal socket wrench to turn the drive rod counterclockwise until the limit hole on the pressure plate is completely removed from the guide column, then pull open the top of the pull head on the right limit block, rotate the left support arm and the right support arm, so that the right support arm rests against the end positioning pin of the spring pull rod, then open the pressure holding device, and then gradually remove the metal pressure blocks and products on both sides until the product is completely taken out.

[0061] It should be noted that the embodiments of the above-mentioned product pressure maintaining method and the embodiments of the product pressure maintaining device can refer to each other, and will not be described one by one here.

[0062] The product pressure maintaining device and method of the present invention have the following advantages:

[0063] 1. It can hold pressure on sheet components in batches and multiple products at the same time, and can flexibly adjust the position of the positioning column according to the shape of the product to improve production efficiency;

[0064] 2. The pressure head used in the traditional pressure-maintaining tooling directly hits the product when in use. Due to long-term use, the pressure-maintaining pressure will fluctuate, which may cause the product's pulling force to be unqualified or damage the product. The present invention uses a metal pressure block with silicone and a highly elastic cylindrical coil spring in the entire pressure-maintaining process. The product is continuously pressurized by the elastic force of the spring, so that the product and components are always firmly pressurized together, and the risk of unqualified pulling force or product deformation is reduced.

[0065] 3. The overall structure of the device is simple and connected with screws. The assembled parts are all standard parts, easy to process and modify, can be purchased in batches, the cost of replacing parts is low, and disassembly, repair and maintenance are very convenient.

[0066] 4. It is also suitable for environments with large changes in external temperature. For example, the product under pressure needs to be placed in an oven for five to eight hours of high-temperature heating at more than 200°C to completely cure the thermosetting glue on the product. During high-temperature treatment, due to design reasons, the thermal expansion and contraction of the product or tooling in traditional pressure-holding tooling will cause the product and the pressure head to be loosely pressed or misaligned. However, the pressure-holding device of the present invention uses the elastic force of the spring, the compression limit of the spring is certain, and the spring has good elasticity, so that the pressure plate and the pressure block, and the pressure block and the product are always in a state of tight pressure holding.

[0067] 5. Before use, you only need to take and put the fastening plate once to check whether each positioning column is skewed or deformed, and you can verify the positioning accuracy of the pressure-maintaining mechanism in time.

[0068] The product pressure-maintaining device and method according to the present invention are described above by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various improvements can be made to the product pressure-maintaining device and method proposed by the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the attached claims.

Claims

1. A product pressure maintaining device, It is characterized in that It includes a bottom plate, a support frame movably arranged on the bottom plate, and a pressing component and a clamping component arranged on the support frame; wherein, A positioning column and a guide column are arranged on the bottom plate, and the support frame is used to rotate around the bottom plate so that the products to be pressurized are stacked on the outside of the positioning column in sequence; The support frame is also used to rotate around the base plate so that the clamping assembly is located directly above the product to be processed. The pressing assembly is used to drive the clamping assembly to press downward. The clamping assembly presses the product to be pressurized downward under the guidance of the guide column.

2. The product pressure maintaining device according to claim 1, It is characterized in that The support frame includes a left support arm and a right support arm which are vertically distributed, and a fastening beam connecting the left support arm and the right support arm; A left limit block and a right limit block are arranged on both sides of the bottom plate; The lower end of the left support arm is connected to the left limit block by a key, and the lower end of the right support arm is connected to the right limit block by a key.

3. The product pressure maintaining device according to claim 2, It is characterized in that The clamping assembly includes a pressing plate slidably connected between the left supporting arm and the right supporting arm, a limiting sleeve arranged on the pressing plate, and a left limiting hole and a right limiting hole located on both sides of the limiting sleeve; wherein, The guide column comprises a left guide column limited in the left limiting hole for movement and a right guide column limited in the right limiting hole for movement.

4. The product pressure maintaining device according to claim 3, It is characterized in that The pressing assembly comprises a driving rod arranged on the fastening beam, a fastening cover located at the lower end of the driving rod, and a left connecting rod and a right connecting rod located at both sides of the driving rod; wherein, The lower ends of the left connecting rod and the right connecting rod are fixedly connected to the pressing plate, and the upper ends of the left connecting rod and the right connecting rod are limited to move in the fastening beam.

5. The product pressure maintaining device according to claim 4, It is characterized in that A cylindrical coil spring is arranged between the fastening cover and the limiting sleeve; The driving rod is used to rotate under the action of external force and drive the pressing plate to move up and down.

6. The product pressure maintaining device according to claim 3, It is characterized in that A left guide post and a right guide post are extended at both ends of the pressing plate; A left guide rail groove is provided on the left support arm, and a right guide rail groove is provided on the right support arm; The left guide post is limited to move in the left guide rail groove, and the right guide groove is limited to move in the right guide rail groove.

7. The product pressure maintaining device according to claim 2, It is characterized in that It also includes a spring pull rod assembly disposed between the right limit block and the right support arm; wherein, The spring pull rod assembly includes a pull head, a pull rod located at one end of the pull head, a positioning pin located at the end of the pull rod, and a cylindrical cavity, a pressure head and a spring located between the positioning pin and the pull head; and, A positioning hole adapted to the positioning pin is provided in the right supporting arm; The spring is used to push the positioning pin into the positioning hole to lock the position of the right support arm and the right limit block; The pulling head is used to drive the pulling rod to move in the cylindrical cavity, and the spring is squeezed by the pressing head so that the positioning pin is moved out of the positioning hole, and the position locking between the right supporting arm and the right limiting block is released.

8. The product pressure maintaining device according to claim 1, It is characterized in that At least three positioning posts are provided, and the guide post is provided at the center of each positioning post. The positioning post and the guide post are fixed in the bottom plate by threads; The inner side of the product to be pressurized is sleeved on the outer side of the positioning column, and a pressure block is arranged between two adjacent products to be pressurized; A silica gel pad is arranged on the pressing block.

9. The product pressure maintaining device according to claim 1, It is characterized in that It also includes a fastening plate arranged on the bottom plate; wherein, A through hole corresponding to the position of the positioning column is provided on the fastening plate; The fastening plate passes through the positioning column and the guide column and is attached to the top of the bottom plate; The diameter of the positioning post located in the through hole is smaller than the diameter of the main body of the positioning post.

10. A product pressure maintaining method, It is characterized in that The method comprises: Release the position lock between the support frame and the bottom plate by using the pull head, and rotate the support frame to one side of the bottom plate; Sleeve the fastening plate on the positioning column and the guide column until it fits with the bottom plate, and detect the vertical state of the positioning column through the fastening plate; The products to be pressure-maintained are sequentially sleeved on the outside of the positioning column until the height of the pressure-maintained products is flush with that of the positioning column; Rotate the support frame to above the bottom plate, and lock the positions of the support frame and the bottom plate; The pressing component is driven to move downward by the pressing component, and the product to be pressurized is pressed and pressure maintained by the pressing component.

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