A pressure maintaining device

Abstract

The utility model relates to a kind of pressure maintaining device, belong to pressure maintaining device technical field, including support frame, the middle part of support frame has recess, the bottom of recess is plane, recess is uniformly provided with several pressure maintaining components, several pressure maintaining components are arranged in parallel and are spaced, the utility model is positioned by the cooperation of positioning pin and linear bearing, the positioning orientation of pressure head is guaranteed, linear bearing can guarantee that pressure head keeps sliding, there is no pressure head jam problem caused by the problem of impurity and machining accuracy of pinhole cooperation, guarantee product without pressure injury defect;In addition, the number and weight of counterweight can be changed in quantity and shape according to demand, adjust flexible, and match the heavy weight demand of area light source.

Description

Technical Field

[0001] This utility model relates to the field of pressure holding device technology, and in particular to a pressure holding device. Background Technology

[0002] In the automotive, mobile phone, and electronics manufacturing industries, the pressure holding process for products such as mobile phone SPKs often uses a pin-hole fit. With the extension of the service life, wear and tear between workpieces and environmental contamination can affect the smoothness of the sliding fit between the pin holes. When UV curing with a surface light source, the pressing hanger is limited by the structure and uses a pin hole plus spring method for product pressure holding. Since some products require strict control of the pressing force during pressure holding, the elastic force provided by the spring cannot meet the normal production needs due to individual differences and abnormal jamming problems during use.

[0003] In addition, the counterweight adjustment method using the pressing method is inflexible and cannot meet the large counterweight requirements of surface light sources. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the above-mentioned traditional technology and provide a pressure holding device. Through the cooperation of the positioning pin and the linear bearing, the positioning and guidance of the pressure head is guaranteed. The linear bearing can ensure that the pressure head is kept in sliding fit. There is no problem of pressure head jamming caused by impurities and machining accuracy issues in the pin hole fit, thus ensuring that the product is free from pressure damage.

[0005] The purpose of this utility model is achieved through the following technical measures: a pressure holding device, including a support frame, a groove in the middle part of the support frame, a flat bottom of the groove, and a plurality of pressure holding components uniformly arranged in the groove, with the plurality of pressure holding components arranged side by side at intervals.

[0006] As a further improvement to the above technical solution: The pressure-holding component includes a pressure block with two light-transmitting holes arranged side by side on the pressure block. A crossbeam is located between the two light-transmitting holes, and a pressure head is located on the lower side of the crossbeam.

[0007] The pressure head is either fixedly connected to the crossbeam or detachably connected.

[0008] Positioning pins are inserted into both sides of the pressure block, and several counterweights stacked together are inserted into the upper end of the positioning pins after they pass through the pressure block.

[0009] Linear bearings are installed on the support frame below several counterweights. The linear bearings are located inside the support frame, which has through holes to accommodate the linear bearings. Positioning pins pass through the linear bearings.

[0010] The linear bearing is provided with a first retaining ring at the position above the support frame, and a second retaining ring at the position below the support frame.

[0011] The length of the pressure head extending beyond the bottom of the groove is greater than the length of the positioning pin extending beyond the bottom of the groove, and the distance difference between the bottom end of the pressure head and the bottom end of the positioning pin is 4-10mm.

[0012] The bottom center of the groove has a through hole, and the pressure head and two light-transmitting holes are all located within the projection of the through hole on the pressure block. The area of ​​the through hole is smaller than the area of ​​the bottom surface of the pressure block.

[0013] Connecting plates are fixedly connected to the upper sides of the support frame, and surface light source hangers are fixedly connected between the rear sides of the connecting plates on both sides. A surface light source is provided on the surface light source hanger. The surface light source is located directly above several pressure-holding components. The distance between the bottom of the surface light source and the top of the counterweight is 5-20mm.

[0014] The spacing between several pressure-holding components is 20-36mm.

[0015] Due to the adoption of the above technical solution, the advantages of this utility model compared with the prior art are: This utility model ensures the positioning and guidance of the pressure head through the cooperation of the positioning pin and the linear bearing. The linear bearing can ensure that the pressure head remains in sliding fit, and there is no problem of pressure head jamming caused by impurities and machining accuracy issues in the pin hole fit, thus ensuring that the product is free from pressure damage.

[0016] In addition, the number and weight of the counterweights can be varied in quantity and shape according to requirements, making them flexible and suitable for the large counterweight requirements of surface light sources.

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a pressure-holding device according to an embodiment of the present utility model; Figure 2 This is a three-dimensional structural schematic diagram of a pressure-holding device from another angle in an embodiment of this utility model; Figure 3 This is a schematic diagram of the structure of a pressure-holding device in an embodiment of this utility model; Figure 4 yes Figure 3 The right view; Figure 5 yes Figure 3 A bottom view; Figure 6 yes Figure 3 Schematic diagram of the cross-sectional structure along the AA direction.

[0019] In the diagram, 1-counterweight; 2-support frame; 3-pressure head; 4-positioning pin; 5-linear bearing; 6-surface light source; 7-surface light source hanger; 8-groove; 9-pressure block; 10-light transmission hole; 11-first snap ring; 12-second snap ring; 13-through hole; 14-connecting plate; 15-crossbeam. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Example 1

[0023] like Figure 1-6 As shown, a pressure-holding device includes a support frame 2, the middle part of the support frame 2 has a groove 8, the bottom of the groove 8 is a plane, and a plurality of pressure-holding components are uniformly arranged in the groove 8, the plurality of pressure-holding components are arranged side by side with intervals, and the distance between the plurality of pressure-holding components is 20mm.

[0024] The pressure-holding component includes a pressure block 9, which is rectangular in shape. Two light-transmitting holes 10 are arranged side by side on the pressure block 9. The light-transmitting holes 10 are square holes. A crossbeam 15 is located between the two light-transmitting holes 10. A pressure head 3 is fixedly connected to the lower side of the crossbeam 15. The pressure head 3 is cylindrical. Positioning pins 4 are inserted into both sides of the pressure block 9. After the upper end of the positioning pin 4 passes through the pressure block 9, several counterweights 1 stacked together are inserted to achieve different counterweights for the pressure head 3.

[0025] Linear bearings 5 ​​are respectively installed on the support frame 2 below several counterweights 1. The linear bearings 5 ​​are located inside the support frame 2, and the support frame 2 has through holes that can accommodate the linear bearings 5. Positioning pins 4 pass through the linear bearings 5 ​​and are fixed to both sides of the pressure block 9 by interference fit. The spacing of the pin holes is consistent with the spacing of the linear bearings 5 ​​to ensure that the two slide together. The diameter of the positioning pins 4 is 0.1mm larger than the inner diameter of the linear bearings 5 ​​to eliminate the gap between the linear bearings 5 ​​and the positioning pins 4.

[0026] A first retaining ring 11 is provided above the support frame 2 for the linear bearing 5, and a second retaining ring 12 is provided below the support frame 2 for the linear bearing 5. The first retaining ring 11 and the second retaining ring 12 fix the position of the linear bearing 5.

[0027] The length of the pressure head 3 extending beyond the bottom of the groove 8 is greater than the length of the positioning pin 4 extending beyond the bottom of the groove 8, and the distance difference between the bottom end of the pressure head 3 and the bottom end of the positioning pin 4 is 4mm.

[0028] A through hole 13 is provided at the bottom center of the groove 8. The through hole 13 is a rectangular hole. The pressure head 3 and two light-transmitting holes 10 are both located within the projection of the through hole 13 on the pressure block 9. The area of ​​the through hole 13 is smaller than the area of ​​the bottom surface of the pressure block 9.

[0029] Connecting plates 14 are fixedly connected to the upper sides of the support frame 2 respectively. A surface light source hanger 7 is fixedly connected between the rear sides of the connecting plates 14 on both sides. A surface light source 6 is provided on the surface light source hanger 7. The surface light source 6 is located directly above several pressure-holding components. The distance between the bottom of the surface light source 6 and the top of the counterweight block 1 is 5mm.

[0030] The surface light source bracket 7 can be fixed to work robots, non-standard units and other equipment for use. Example 2

[0031] like Figure 1-6 As shown, a pressure-holding device includes a support frame 2, the middle part of the support frame 2 has a groove 8, the bottom of the groove 8 is a plane, and a plurality of pressure-holding components are uniformly arranged in the groove 8, the plurality of pressure-holding components are arranged side by side with intervals, and the distance between the plurality of pressure-holding components is 36mm.

[0032] The pressure-holding component includes a pressure block 9, which is rectangular in shape. Two light-transmitting holes 10 are arranged side by side on the pressure block 9. The light-transmitting holes 10 are square holes. A crossbeam 15 is located between the two light-transmitting holes 10. A pressure head 3 is located on the lower side of the crossbeam 15. The pressure head 3 is detachably connected to the crossbeam 15. When changing products, only the pressure head 3 needs to be replaced to switch between products. The pressure head 3 is cylindrical. Positioning pins 4 are inserted into both sides of the pressure block 9. The upper end of the positioning pin 4 passes through the pressure block 9 and is inserted into several counterweight blocks 1 stacked together to achieve different counterweights for the pressure head 3.

[0033] Linear bearings 5 ​​are respectively installed on the support frame 2 below several counterweights 1. The linear bearings 5 ​​are located inside the support frame 2, and the support frame 2 has through holes that can accommodate the linear bearings 5. Positioning pins 4 pass through the linear bearings 5 ​​and are fixed to both sides of the pressure block 9 by interference fit. The spacing of the pin holes is consistent with the spacing of the linear bearings 5 ​​to ensure that the two slide together. The diameter of the positioning pins 4 is 0.1mm larger than the inner diameter of the linear bearings 5 ​​to eliminate the gap between the linear bearings 5 ​​and the positioning pins 4.

[0034] A first retaining ring 11 is provided above the support frame 2 for the linear bearing 5, and a second retaining ring 12 is provided below the support frame 2 for the linear bearing 5. The first retaining ring 11 and the second retaining ring 12 fix the position of the linear bearing 5.

[0035] The length of the pressure head 3 extending beyond the bottom of the groove 8 is greater than the length of the positioning pin 4 extending beyond the bottom of the groove 8, and the distance difference between the bottom end of the pressure head 3 and the bottom end of the positioning pin 4 is 10mm.

[0036] A through hole 13 is provided at the bottom center of the groove 8. The through hole 13 is a rectangular hole. The pressure head 3 and two light-transmitting holes 10 are both located within the projection of the through hole 13 on the pressure block 9. The area of ​​the through hole 13 is smaller than the area of ​​the bottom surface of the pressure block 9.

[0037] Connecting plates 14 are fixedly connected to the upper sides of the support frame 2 respectively. A surface light source hanger 7 is fixedly connected between the rear sides of the connecting plates 14 on both sides. A surface light source 6 is provided on the surface light source hanger 7. The surface light source 6 is located directly above several pressure-holding components. The distance between the bottom of the surface light source 6 and the top of the counterweight block 1 is 20mm.

[0038] The surface light source bracket 7 can be fixed to work robots, non-standard units and other equipment for use. Example 3

[0039] like Figure 1-6 As shown, a pressure-holding device includes a support frame 2, the middle part of the support frame 2 has a groove 8, the bottom of the groove 8 is a plane, and a plurality of pressure-holding components are uniformly arranged in the groove 8, the plurality of pressure-holding components are arranged side by side with intervals, and the distance between the plurality of pressure-holding components is 34mm.

[0040] The pressure-holding component includes a pressure block 9, which is rectangular in shape. Two light-transmitting holes 10 are arranged side by side on the pressure block 9. The light-transmitting holes 10 are square holes. A crossbeam 15 is located between the two light-transmitting holes 10. A pressure head 3 is fixedly connected to the lower side of the crossbeam 15. The pressure head 3 is cylindrical. Positioning pins 4 are inserted into both sides of the pressure block 9. After the upper end of the positioning pin 4 passes through the pressure block 9, several counterweights 1 stacked together are inserted to achieve different counterweights for the pressure head 3.

[0041] Linear bearings 5 ​​are respectively installed on the support frame 2 below several counterweights 1. The linear bearings 5 ​​are located inside the support frame 2, and the support frame 2 has through holes that can accommodate the linear bearings 5. Positioning pins 4 pass through the linear bearings 5 ​​and are fixed to both sides of the pressure block 9 by interference fit. The spacing of the pin holes is consistent with the spacing of the linear bearings 5 ​​to ensure that the two slide together. The diameter of the positioning pins 4 is 0.1mm larger than the inner diameter of the linear bearings 5 ​​to eliminate the gap between the linear bearings 5 ​​and the positioning pins 4.

[0042] A first retaining ring 11 is provided above the support frame 2 for the linear bearing 5, and a second retaining ring 12 is provided below the support frame 2 for the linear bearing 5. The first retaining ring 11 and the second retaining ring 12 fix the position of the linear bearing 5.

[0043] The length of the pressure head 3 extending beyond the bottom of the groove 8 is greater than the length of the positioning pin 4 extending beyond the bottom of the groove 8, and the distance difference between the bottom end of the pressure head 3 and the bottom end of the positioning pin 4 is 6mm.

[0044] A through hole 13 is provided at the bottom center of the groove 8. The through hole 13 is a rectangular hole. The pressure head 3 and two light-transmitting holes 10 are both located within the projection of the through hole 13 on the pressure block 9. The area of ​​the through hole 13 is smaller than the area of ​​the bottom surface of the pressure block 9.

[0045] Connecting plates 14 are fixedly connected to the upper sides of the support frame 2 respectively. A surface light source hanger 7 is fixedly connected between the rear sides of the connecting plates 14 on both sides. A surface light source 6 is provided on the surface light source hanger 7. The surface light source 6 is located directly above several pressure-holding components. The distance between the bottom of the surface light source 6 and the top of the counterweight block 1 is 12mm.

[0046] The surface light source bracket 7 can be fixed to work robots, non-standard units and other equipment for use.

[0047] During operation, the pressure head 3 presses and fixes the part of the product that needs to be pressed, and the surface light source 6 projects light through the light-transmitting hole 10 on the pressure block 9, thereby enabling the UV-type adhesive on the upper part of the product to be cured by light source irradiation, thus achieving product bonding and curing.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressure-holding device, characterized in that: Includes a support frame (2), the middle part of the support frame (2) has a groove (8), the bottom of the groove (8) is a plane, and a number of pressure-holding components are evenly arranged in the groove (8), with the pressure-holding components arranged side by side at intervals; The pressure-holding component includes a pressure block (9), on which two light-transmitting holes (10) are arranged side by side, and a crossbeam (15) is provided between the two light-transmitting holes (10). A pressure head (3) is provided on the lower side of the crossbeam (15). Positioning pins (4) are inserted into both sides of the pressure block (9). After the upper end of the positioning pin (4) passes through the pressure block (9), several counterweights (1) stacked together are inserted. Linear bearings (5) are provided on the support frame (2) below several counterweights (1). The linear bearings (5) are located inside the support frame (2). The support frame (2) has through holes that can accommodate the linear bearings (5) to pass through. The positioning pin (4) passes through the linear bearings (5).

2. The pressure-holding device according to claim 1, characterized in that: The pressure head (3) is fixedly connected to the crossbeam (15) or detachably connected.

3. The pressure-holding device according to claim 1, characterized in that: The linear bearing (5) is provided with a first retaining ring (11) above the support frame (2), and a second retaining ring (12) is provided below the support frame (2).

4. The pressure-holding device according to claim 3, characterized in that: The length of the pressure head (3) extending beyond the bottom of the groove (8) is greater than the length of the positioning pin (4) extending beyond the bottom of the groove (8), and the distance difference between the bottom end of the pressure head (3) and the bottom end of the positioning pin (4) is 4-10mm.

5. A pressure-holding device according to claim 4, characterized in that: The bottom center of the groove (8) is provided with a through hole (13). The pressure head (3) and two light-transmitting holes (10) are all located within the projection of the through hole (13) on the pressure block (9). The area of ​​the through hole (13) is smaller than the area of ​​the bottom surface of the pressure block (9).

6. A pressure-holding device according to any one of claims 3-5, characterized in that: The support frame (2) is fixedly connected to the upper sides of the two sides of the support frame (2). A surface light source hanger (7) is fixedly connected between the rear sides of the two side connection plates (14). A surface light source (6) is provided on the surface light source hanger (7). The surface light source (6) is located directly above several pressure-holding components. The distance between the bottom of the surface light source (6) and the upper end of the counterweight (1) is 5-20mm.

7. A pressure-holding device according to claim 1, characterized in that: The spacing between several pressure-holding components is 20-36mm.

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