Front and back access double-station pressure maintaining and detecting jig

Abstract

The utility model discloses a front and rear access double position pressure maintaining and detection fixture belongs to pressure maintaining fixture technical field, including safe pressure combined pressure maintaining mechanism, base and base frame, and the base frame fixed connection is in the base upper end, and two groups of safe pressure combined pressure maintaining mechanism of left and right symmetry distribution are connected on the base, still include visual detection mechanism and double position work piece transfer mechanism, and the visual detection mechanism is connected on the base frame, and the double position work piece transfer mechanism is connected on the base, and safe pressure combined pressure maintaining mechanism includes pressure maintaining type pressure combined subassembly, limit to place subassembly and photoelectric protection subassembly, and pressure maintaining type pressure combined subassembly is connected on the base frame, and photoelectric protection subassembly is connected on the inside side wall of base frame, and photoelectric protection subassembly and external electric connection, and limit to place subassembly is connected on the base. Through above -mentioned mode, the process of product pressure maintaining and detection alternately is carried out to the double position design, and simultaneously can adapt to different specifications work piece, and the production efficiency is improved greatly.

Description

Technical Field

[0001] This utility model relates to the field of pressure holding fixture technology, specifically to a front and rear dual-station pressure holding and testing fixture. Background Technology

[0002] Pressure holding fixtures are widely used in the assembly process of electronic devices, such as displays and other electronic products. The pressure holding method is used to apply stable pressure during the curing of adhesives or the bonding of components, thereby ensuring product quality.

[0003] However, traditional pressure-holding fixtures have a single function, only capable of holding pressure and unable to detect whether the workpiece is qualified during the pressure-holding process. The product needs to be moved to a separate inspection station for secondary operation, resulting in low efficiency and potential errors due to the secondary handling process. At the same time, most fixtures in the existing technology can only process a single workpiece at a time, resulting in low production efficiency. In addition, existing pressure-holding fixtures are usually designed for workpieces of specific sizes, and when the product model changes, the fixture needs to be replaced, which not only increases economic costs but also hinders overall production.

[0004] Based on this, this utility model designs a front and rear entry / exit dual-station pressure holding and testing fixture to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a dual-station pressure holding and testing fixture with front and rear entry and exit.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A dual-station pressure holding and inspection fixture with front and rear entry and exit includes a safety pressing and pressure holding mechanism, a base, and a base frame. The base frame is fixedly connected to the upper end of the base. Two sets of symmetrically distributed safety pressing and pressure holding mechanisms are connected to the base. It also includes a vision inspection mechanism and a dual-station workpiece transfer mechanism. The vision inspection mechanism is connected to the base frame, and the dual-station workpiece transfer mechanism is connected to the base. The two sets of vision inspection mechanisms and the two sets of dual-station workpiece transfer mechanisms correspond one-to-one with the two sets of safety pressing and pressure holding mechanisms. The safety pressing and pressure holding mechanism includes a pressure holding type pressing component, an extreme positioning component, and a photoelectric protection component. The pressure holding type pressing component is connected to the base frame, the photoelectric protection component is connected to the inner side wall of the base frame, and the photoelectric protection component is electrically connected to an external alarm. The extreme positioning component is connected to the base. The extreme positioning component is used to limit and detect the maximum distance that the dual-station workpiece transfer mechanism can move backward. The photoelectric protection component is used to detect and prevent personnel or objects from entering the dangerous area to avoid accidental injury or equipment damage.

[0008] Furthermore, the pressure-holding pressing assembly includes a cylinder slide, a connecting block, a counterweight, and a pressing head. The fixed end of the cylinder slide is fixedly connected to the inner wall of the rear end of the base frame, and the moving end of the cylinder slide is fixedly connected to the connecting block. A counterweight is fixedly connected to the upper end of the connecting block, and a pressing head is fixedly connected to the lower end of the connecting block. The pressing head is used to press the electronic workpiece downwards.

[0009] Furthermore, the limit positioning component includes a limit block and a micro switch. The limit block is fixedly connected to the upper end of the base and is used to limit the maximum distance that the dual-station workpiece transfer mechanism can move backward. The housing of the micro switch is fixedly connected to the upper end of the base, and the micro switch is electrically connected to an external indicator light.

[0010] Furthermore, the dual-station workpiece transfer mechanism uses a dual-station transfer component or a dual-station synchronous moving clamping component to achieve dual-station operation of pressure holding and detection of electronic workpieces.

[0011] Furthermore, the dual-station workpiece transfer mechanism uses a dual-station transfer assembly to perform pressure holding and detection dual-station operations on electronic workpieces. Two sets of dual-station transfer assemblies are symmetrically distributed on the base. The dual-station transfer assembly includes a first slide rail and a first moving plate. The first slide rail is fixedly connected to the upper end of the base, and the first moving plate is slidably connected to the first slide rail through a slider.

[0012] Furthermore, the dual-station workpiece transfer mechanism uses a dual-station synchronous moving clamping assembly to perform pressure holding and detection dual-station operation on electronic workpieces. The dual-station synchronous moving clamping assembly includes a synchronous moving assembly and a moving clamping assembly. The synchronous moving assembly and the moving clamping assembly are connected to the base. The synchronous moving assembly is connected to the moving clamping assembly. The synchronous moving assembly is used to make the electronic workpieces placed on the two stations move synchronously in opposite directions. The two sets of left and right symmetrically distributed moving clamping assemblies are used to make the electronic workpieces automatically clamp or release during the movement.

[0013] Furthermore, the synchronous movement assembly includes a second slide rail, a second moving plate, a front rotating roller, a rear rotating roller, a belt, and a synchronous fixing block. The two sets of second slide rails and the two sets of second moving plates are symmetrically distributed on the left and right sides of the base. The second slide rails are fixedly connected to the upper end of the base. The second moving plates are slidably connected to the second slide rails through sliders. The front rotating roller and the rear rotating roller, located between the two sets of second moving plates, are symmetrically distributed front and rear. The front rotating roller and the rear rotating roller are rotatably connected to the upper end of the base. The belt is fixedly connected to the side walls of the two sets of second moving plates through the synchronous fixing block. The front rotating roller and the rear rotating roller are connected by belt drive.

[0014] Furthermore, the movable clamping assembly includes a clamping block, a spring, a fixed block, a movable column, a limiting column, a movable sleeve rod, and a movable inner rod. Two sets of limiting grooves, clearance holes, clamping blocks, and fixed blocks are symmetrically distributed about the belt. The fixed block is fixedly connected to the upper end of the second movable plate. The inner fixed block is slidably connected to the movable column, and the lower end of the movable column is fixedly connected to the limiting column. The outer fixed block is slidably connected to the outer wall of the movable sleeve rod, and the lower end of the movable sleeve rod is fixedly connected to the limiting column. The movable inner rod is slidably connected to the inner wall of the movable sleeve rod. A spring is sleeved on the movable inner rod. One end of the spring is fixedly connected to the side wall of the movable rod, and the other end of the spring is fixedly connected to the outer wall of the movable inner rod. The clamping block located on the inner side is fixedly connected to the movable column, and the clamping block located on the outer side is fixedly connected to the movable inner rod. The clamping block is used to clamp and fix the electronic workpiece inward. The second movable plate is provided with a clearance hole for avoiding the limiting column. The upper end of the base is provided with a limiting groove that is slidably connected to the limiting column. The limiting groove consists of two vertical grooves and one inclined groove. The inclined groove is located in the middle of the two vertical grooves, and the vertical grooves and the inclined groove are interconnected.

[0015] Compared with the prior art, the advantages of this utility model are as follows: 1. By optimizing the mechanical mechanism and using a dual-station design, the pressure holding and testing processes can be carried out alternately, which greatly improves production efficiency;

[0016] 2. The movement of the workstation will cause the clamping assembly to fix the workpiece to be processed. While the operation is convenient, the spring on the clamping block can be used for electronic product workpieces of different sizes, which improves the versatility of the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of a front-to-back dual-station pressure holding and testing fixture according to the present invention;

[0019] Figure 2 This is a front view of a front-to-back dual-station pressure holding and testing fixture according to the present invention;

[0020] Figure 3 This is a partial structural schematic diagram of Embodiment 1 of the present utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5This is a partial structural schematic diagram of Embodiment 2 of the present invention.

[0023] The labels in the diagram represent:

[0024] 1. Visual inspection mechanism; 11. Camera; 12. Camera mounting plate; 2. Safety pressing and holding mechanism; 21. Pressure holding pressing assembly; 211. Cylinder slide; 212. Connecting block; 213. Counterweight block; 214. Press head; 22. Limit positioning assembly; 221. Limit block; 222. Micro switch; 223. Roller; 23. Photoelectric protection assembly; 3. Dual-station workpiece transfer mechanism; 31. Dual-station transfer assembly; 311. First slide rail; 312. First moving plate; 313. 32. First handle; 33. Synchronous moving assembly; 34. Second slide rail; 35. Second moving plate; 36. Second handle; 37. Front roller; 38. Rear roller; 39. Belt; 30. Synchronous fixing block; 31. Moving clamping assembly; 32. Limiting groove; 33. Clearance hole; 33. Clamping block; 34. Spring; 35. Fixing block; 36. Moving column; 37. Limiting column; 38. Moving sleeve rod; 39. Moving inner rod; 4. Base; 5. Base frame. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0027] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-5 A dual-station pressure holding and inspection fixture with front and rear entry and exit includes a safety pressing and pressure holding mechanism 2, a base 4, and a base frame 5. The base frame 5 is fixedly connected to the upper end of the base 4. Two sets of symmetrically distributed safety pressing and pressure holding mechanisms 2 are connected to the base 4. It also includes a vision inspection mechanism 1 and a dual-station workpiece transfer mechanism 3. The vision inspection mechanism 1 is connected to the base frame 5, and the dual-station workpiece transfer mechanism 3 is connected to the base 4. The two sets of vision inspection mechanisms 1 and the two sets of dual-station workpiece transfer mechanisms 3 correspond one-to-one with the two sets of safety pressing and pressure holding mechanisms 2. The vision inspection mechanism 1 is used to inspect the pressed electronic workpiece, and the dual-station workpiece transfer mechanism 3 is used to perform pressure holding and inspection dual-station operation on the electronic workpiece.

[0028] The visual inspection mechanism 1, the dual-station workpiece transfer mechanism 3, and the safety pressing and holding mechanism 2 on the left are defined as the first station, and the visual inspection mechanism 1, the dual-station workpiece transfer mechanism 3, and the safety pressing and holding mechanism 2 on the right are defined as the second station.

[0029] The safety pressing and holding mechanism 2 includes a pressure-holding pressing component 21, an extreme positioning component 22, and a photoelectric protection component 23. The pressure-holding pressing component 21 is connected to the base frame 5. The photoelectric protection component 23 is connected to the inner side wall of the base frame 5 and is electrically connected to an external alarm. The extreme positioning component 22 is connected to the base 4. The extreme positioning component 22 is used to limit and detect the maximum backward movement of the dual-station workpiece transfer mechanism 3. The photoelectric protection component 23 is used to detect and prevent personnel or objects from entering the dangerous area to avoid accidental injury or equipment damage.

[0030] The pressure-holding pressing assembly 21 includes a cylinder slide 211, a connecting block 212, a counterweight block 213, and a pressing head 214. The fixed end of the cylinder slide 211 is fixedly connected to the inner wall of the rear end of the base frame 5, and the moving end of the cylinder slide 211 is fixedly connected to the connecting block 212. The upper end of the connecting block 212 is fixedly connected to the counterweight block 213, and the lower end of the connecting block 212 is fixedly connected to the pressing head 214. The pressing head 214 is used to press the electronic workpiece downwards.

[0031] The mass of counterweight 213 is 1 ± 0.2 kg.

[0032] The limit positioning component 22 includes a limit block 221 and a micro switch 222. The limit block 221 is fixedly connected to the upper end of the base 4. The limit block 221 is used to limit the maximum distance that the dual-station workpiece transfer mechanism 3 can move backward. The housing of the micro switch 222 is fixedly connected to the upper end of the base 4. The micro switch 222 is electrically connected to an external indicator light.

[0033] A roller 223 is rotatably connected to the contact head of the micro switch 222. The roller 223 is used to reduce friction and make the micro switch 222 trigger smoothly.

[0034] The micro switch 222 is a normally open micro switch. Normally open micro switches are a mature existing technology, so we will not go into details here.

[0035] The photoelectric protection component 23 uses a zone sensor to detect and prevent personnel from entering the dangerous area. The zone sensor can be a Panasonic SF4D-F14 light grating, which is electrically connected to an external alarm.

[0036] The dual-station workpiece transfer mechanism 3 can use a dual-station transfer component 31 or a dual-station synchronous moving clamping component to achieve dual-station operation of pressure holding and detection of electronic workpieces.

[0037] The visual inspection mechanism 1 includes a camera 11 and a camera mounting plate 12. The camera mounting plate 12 is fixedly connected to the upper end of the base frame 5, and the camera 11 is fixedly connected to the front end of the camera mounting plate 12. The camera 11 is used to perform visual inspection on the pressed electronic workpiece.

[0038] In this utility model, the electronic workpiece is placed on the first station of the dual-station workpiece transfer mechanism 3, and the first station of the dual-station workpiece transfer mechanism 3 is moved backward until the dual-station workpiece transfer mechanism 3 contacts the limit block 221. At this time, the dual-station workpiece transfer mechanism 3 contacts the roller 223 on the micro switch 222, the indicator light is lit, and the movement of the dual-station workpiece transfer mechanism 3 is stopped.

[0039] Start the cylinder slide 211, push the connecting block 212 to move downward, push the pressure head 214 to press the electronic workpiece downward, maintain pressure for a period of time, and the counterweight 213 moves synchronously with the pressure head 214 during the downward movement and pressure holding process. The counterweight 213 can stabilize the pressure and reduce the impact of air source fluctuations on the equipment during operation.

[0040] When the electronic workpiece at the first station is being held under pressure, a new electronic workpiece is placed on the second station of the dual-station workpiece transfer mechanism 3. After the pressure holding is completed, the first station of the dual-station workpiece transfer mechanism 3 is moved forward to be directly below the camera 11 on the camera mounting plate 12 for visual inspection. At the same time, the second station of the dual-station workpiece transfer mechanism 3 is moved backward for pressure holding and pressing. After the inspection is completed, the electronic workpiece is removed and a new electronic workpiece is placed to continue pressing. By repeating the above operation, dual-station alternating pressing and inspection can be performed, saving assembly and inspection time and improving overall production efficiency.

[0041] During the pressing test, two sets of photoelectric protection components 23 provide safety protection. The infrared beam of the Panasonic grating will detect and prevent personnel or objects from entering the danger zone. When the beam is blocked, the alarm will sound immediately to protect the operator from mechanical injury.

[0042] Example 2: In some embodiments, such as Figure 3 and Figure 4 As shown, in a preferred embodiment of the present invention, the dual-station workpiece transfer mechanism 3 uses a dual-station transfer assembly 31 to perform pressure holding and detection dual-station operation on the electronic workpiece. The two sets of dual-station transfer assemblies 31 are symmetrically distributed on the base 4.

[0043] The duplex conveying assembly 31 includes a first slide rail 311 and a first moving plate 312. The first slide rail 311 is fixedly connected to the upper end of the base 4, and the first moving plate 312 is slidably connected to the first slide rail 311 by a slider.

[0044] The first handle 313 is fixedly connected to the front end of the first moving plate 312.

[0045] In this invention, an electronic workpiece is placed on the first station of the first moving plate 312. The first handle 313 is pushed to move the first station of the first moving plate 312 backward for pressing and holding. While the electronic workpiece on the first station is being pressed, a new electronic workpiece is placed on the second station of the first moving plate 312. After the pressing is completed, the first station of the first moving plate 312 is moved forward for visual inspection. At the same time, the second station of the first moving plate 312 is moved backward for pressing and holding. After the electronic workpiece on the first station is inspected, a new electronic workpiece is placed and pressing is continued. By repeating the above operation, dual-station pressing and inspection can be achieved.

[0046] Example 3: In some embodiments, such as Figure 5 As shown, in a preferred embodiment of the present invention, the dual-station workpiece transfer mechanism 3 uses a dual-station synchronous moving clamping assembly to perform pressure holding and detection dual-station operation on electronic workpieces.

[0047] The dual-station synchronous moving clamping assembly includes a synchronous moving component 32 and a moving clamping component 33. The synchronous moving component 32 and the moving clamping component 33 are connected to the base 4. The synchronous moving component 32 is connected to the moving clamping component 33. The synchronous moving component 32 is used to make the electronic workpiece placed on the two stations move synchronously in opposite directions. The two sets of left and right symmetrically distributed moving clamping components 33 are used to make the electronic workpiece automatically clamp or release during the movement.

[0048] The synchronous moving assembly 32 includes a second slide rail 321, a second moving plate 322, a front roller 324, a rear roller 325, a belt 326, and a synchronous fixing block 327. The two sets of second slide rails 321 and the two sets of second moving plates 322 are symmetrically distributed on the base 4. The second slide rails 321 are fixedly connected to the upper end of the base 4. The second moving plates 322 are slidably connected to the second slide rails 321 through sliders. The front roller 324 and the rear roller 325, located between the two sets of second moving plates 322, are symmetrically distributed front and rear. The front roller 324 and the rear roller 325 are rotatably connected to the upper end of the base 4. The belt 326 is fixedly connected to the side walls of the two sets of second moving plates 322 through the synchronous fixing block 327. The front roller 324 and the rear roller 325 are connected by the belt 326.

[0049] The second movable plate 322 has a second handle 323 fixedly connected to its front end.

[0050] The movable clamping assembly 33 includes a clamping block 333, a spring 334, a fixing block 335, a movable column 336, a limiting column 337, a movable sleeve rod 338, and a movable inner rod 339. Two sets of limiting grooves 331, clearance holes 332, clamping blocks 333, and fixing blocks 335 are symmetrically distributed about the belt 326. The fixing block 335 is fixedly connected to the upper end of the second movable plate 322. The inner fixing block 335 is slidably connected to the movable column 336, and the lower end of the movable column 336 is fixedly connected to the limiting column 337. The outer fixing block 335 is slidably connected to the outer wall of the movable sleeve rod 338, and the lower end of the movable sleeve rod 338 is fixedly connected to the limiting column 337. The movable inner rod 339 is slidably connected to the inner wall of the movable sleeve rod 338. The spring 334 is sleeved on the movable inner rod 339. On 39, one end of spring 334 is fixedly connected to the side wall of movable sleeve rod 338, and the other end of spring 334 is fixedly connected to the outer wall of movable inner rod 339. The clamping block 333 located on the inner side is fixedly connected to movable column 336, and the clamping block 333 located on the outer side is fixedly connected to movable inner rod 339. The clamping block 333 is used to clamp and fix electronic workpieces inward. The second movable plate 322 is provided with a clearance hole 332 for avoiding the limiting column 337. The upper end of the base 4 is provided with a limiting groove 331 that is limited and slidably connected to the limiting column 337. The limiting groove 331 consists of two vertical grooves and one inclined groove. The front end of the inclined groove is located on the left side of the rear end of the inclined groove. The inclined groove is located in the middle of the two vertical grooves. The vertical grooves and the inclined groove are interconnected and smoothly connected. The distance between the front vertical grooves is greater than the distance between the rear vertical grooves.

[0051] In this invention, the electronic workpiece is placed on the first station of the second moving plate 322. Pushing the second handle 323 causes the first station of the second moving plate 322 to move backward. This backward movement of the second moving plate 322 causes the limiting post 337 to move. The limiting post 337 moves from the front vertical groove to the inclined groove, and then from the inclined groove to the rear vertical groove. During this process, the clearance hole 332 avoids the movement of the limiting post 337. The two sets of limiting posts 337 move backward while being limited by the limiting groove 331. The distance between the front vertical grooves is greater than the distance between the rear vertical grooves. Therefore, when the limiting posts 337 move in the inclined groove, they approach each other, and when the limiting posts 337 reach the rear vertical groove, the two sets of limiting posts 337 are closest to each other. Thus, under the limiting action of the fixed block 335, the moving post 336 and the moving sleeve rod 338 approach each other, so that the two sets of clamping blocks 333 approach each other to clamp the electronic workpiece. When the outer clamping block 333 approaches the electronic workpiece, the moving inner rod 339 connected to the outer clamping block 333 always clamps the electronic workpiece under the action of the spring 334. At the same time, the presence of the spring 334 allows the clamping block 333 to adapt to electronic workpieces of different sizes.

[0052] With the cooperation of the front roller 324, rear roller 325, belt 326, and synchronous fixing block 327, the backward movement of the first station will drive the second station to move forward. When the first station reaches below the pressure head 214, the second station reaches below the camera 11. The clamping blocks 333 of the second station move away from each other with the cooperation of the limiting groove 331, the clearance hole 332, the spring 334, the fixing block 335, and the moving column 336, releasing the clamping of the electronic workpiece. At this time, pressure is maintained on the electronic workpiece at the first station. Simultaneously, a new electronic workpiece is placed on the second station of the second moving plate 322. After the pressure holding is completed, the first station of the second moving plate 322 is moved forward for visual inspection. With the cooperation of the front roller 324, the rear roller 325, the belt 326 and the synchronous fixing block 327, the second station of the second moving plate 322 moves backward synchronously for pressure holding and pressing. After the electronic workpiece at the first station is inspected, a new electronic workpiece is placed and pressing is continued. Repeating the above operation can realize dual-station pressure holding and inspection.

[0053] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dual-station pressure holding and testing fixture with front and rear entry and exit, comprising a safety pressing and pressure holding mechanism (2), a base (4), and a base frame (5), wherein the base frame (5) is fixedly connected to the upper end of the base (4), and two sets of left-right symmetrically distributed safety pressing and pressure holding mechanisms (2) are connected to the base (4), characterized in that: It also includes a visual inspection mechanism (1) and a dual-station workpiece transfer mechanism (3). The visual inspection mechanism (1) is connected to the base frame (5), and the dual-station workpiece transfer mechanism (3) is connected to the base (4). The two sets of visual inspection mechanisms (1) and the two sets of dual-station workpiece transfer mechanisms (3) correspond one-to-one with the two sets of safety pressing and pressure holding mechanisms (2). The safety pressing and holding mechanism (2) includes a pressure holding pressing component (21), an extreme positioning component (22), and a photoelectric protection component (23). The pressure holding pressing component (21) is connected to the base frame (5). The photoelectric protection component (23) is connected to the inner side wall of the base frame (5). The photoelectric protection component (23) is electrically connected to an external alarm. The extreme positioning component (22) is connected to the base (4). The extreme positioning component (22) is used to limit the maximum distance that the dual-station workpiece transfer mechanism (3) can move backward and to detect it. The photoelectric protection component (23) is used to detect and prevent personnel or objects from entering the dangerous area to avoid accidental injury or equipment damage.

2. The dual-station pressure holding and testing fixture with front and rear entry / exit as described in claim 1, characterized in that, The pressure-holding pressing assembly (21) includes a cylinder slide (211), a connecting block (212), a counterweight (213), and a pressing head (214). The fixed end of the cylinder slide (211) is fixedly connected to the inner wall of the rear end of the base frame (5). The moving end of the cylinder slide (211) is fixedly connected to the connecting block (212). The upper end of the connecting block (212) is fixedly connected to the counterweight (213), and the lower end of the connecting block (212) is fixedly connected to the pressing head (214). The pressing head (214) is used to press the electronic workpiece downwards.

3. The dual-station pressure holding and testing fixture with front and rear entry / exit as described in claim 1, characterized in that, The limit positioning component (22) includes a limit block (221) and a micro switch (222). The limit block (221) is fixedly connected to the upper end of the base (4). The limit block (221) is used to limit the maximum distance that the dual-station workpiece transfer mechanism (3) can move backward. The housing of the micro switch (222) is fixedly connected to the upper end of the base (4). The micro switch (222) is electrically connected to an external indicator light.

4. The dual-station pressure holding and testing fixture with front and rear entry / exit as described in claim 1, characterized in that, The dual-station workpiece transfer mechanism (3) uses a dual-station transfer component (31) or a dual-station synchronous moving clamping component to realize the dual-station operation of pressure holding and detection of electronic workpieces.

5. The dual-station pressure holding and testing fixture with front and rear entry / exit as described in claim 4, characterized in that, The dual-station workpiece transfer mechanism (3) uses a dual-station transfer assembly (31) to perform pressure holding and detection dual-station operation on electronic workpieces. Two sets of dual-station transfer assemblies (31) are symmetrically distributed on the base (4). The dual-station transfer assembly (31) includes a first slide rail (311) and a first moving plate (312). The first slide rail (311) is fixedly connected to the upper end of the base (4), and the first moving plate (312) is limited and slidably connected to the first slide rail (311) through a slider.

6. The dual-station pressure holding and testing fixture with front and rear entry / exit as described in claim 4, characterized in that, The dual-station workpiece transfer mechanism (3) uses a dual-station synchronous moving clamping assembly to perform pressure holding and detection dual-station operation on electronic workpieces. The dual-station synchronous moving clamping assembly includes a synchronous moving assembly (32) and a moving clamping assembly (33). The synchronous moving assembly (32) and the moving clamping assembly (33) are connected to the base (4). The synchronous moving assembly (32) is connected to the moving clamping assembly (33). The synchronous moving assembly (32) is used to make the electronic workpieces placed on the two stations move synchronously in opposite directions. The two sets of left and right symmetrically distributed moving clamping assemblies (33) are used to make the electronic workpieces automatically clamp or release during the movement.

7. The dual-station pressure holding and testing fixture with front and rear entry / exit as described in claim 6, characterized in that, The synchronous moving assembly (32) includes a second slide rail (321), a second moving plate (322), a front roller (324), a rear roller (325), a belt (326), and a synchronous fixing block (327). The two sets of second slide rails (321) and the two sets of second moving plates (322) are symmetrically distributed on the base (4). The second slide rails (321) are fixedly connected to the upper end of the base (4). The second moving plates (322) are connected to the second slide rails (321) by a slider. 21) Limiting sliding connection, the front roller (324) and the rear roller (325) located between the two sets of second moving plates (322) are symmetrically distributed front and rear. The front roller (324) and the rear roller (325) are rotatably connected to the upper end of the base (4). The belt (326) is fixedly connected to the side wall of the two sets of second moving plates (322) respectively through the synchronous fixing block (327). The front roller (324) and the rear roller (325) are connected by belt (326) transmission.

8. The dual-station pressure holding and testing fixture with front and rear entry / exit as described in claim 7, characterized in that, The movable clamping assembly (33) includes a clamping block (333), a spring (334), a fixing block (335), a movable column (336), a limiting column (337), a movable sleeve rod (338), and a movable inner rod (339). Two sets of limiting grooves (331), clearance holes (332), clamping blocks (333), and fixing blocks (335) are symmetrically distributed about the belt (326). The fixing block (335) is fixedly connected to the upper end of the second movable plate (322). The fixing block (335) located on the inner side is slidably connected to the movable column (336). The lower end of the movable column (336) is fixedly connected to the limiting column (337). The fixing block (335) located on the outer side is slidably connected to the outer wall of the movable sleeve rod (338). The lower end of the movable sleeve rod (338) is fixedly connected to the limiting column (337). The movable inner rod (339) is connected to the movable sleeve rod (338). The inner wall of the rod (338) is limited and slidably connected. The spring (334) is sleeved on the moving inner rod (339). One end of the spring (334) is fixedly connected to the side wall of the moving sleeve rod (338), and the other end of the spring (334) is fixedly connected to the outer wall of the moving inner rod (339). The clamping block (333) located on the inner side is fixedly connected to the moving column (336), and the clamping block (333) located on the outer side is fixedly connected to the moving inner rod (339). The clamping block (333) is used to clamp and fix the electronic workpiece inward. The second moving plate (322) is provided with a clearance hole (332) for avoiding the limiting column (337). The upper end of the base (4) is provided with a limiting groove (331) that is limited and slidably connected to the limiting column (337). The limiting groove (331) consists of two vertical grooves and one inclined groove. The inclined groove is located in the middle of the two vertical grooves, and the vertical groove and the inclined groove are interconnected.

Images