An automatic locking large pneumatic lifting platform

Abstract

The application discloses an automatic locking large-sized pneumatic lifting platform, which comprises a carrier plate platform and a test platform, the carrier plate platform is slidably positioned on the test platform, the carrier plate platform comprises carrier plate supporting legs, a handle and a carrier plate base surface, a plurality of carrier plate supporting legs are fixedly arranged on the lower surface of the carrier plate base surface; the test platform comprises a test base surface and pneumatic lifting locking modules, the top of the four pneumatic lifting locking modules is fixed to the lower surface of the test base surface, guide grooves are arranged in parallel on the upper surface of the test base surface, and lifting positioning slot holes matched with the carrier plate supporting legs are arranged on the guide grooves. The transportation mode combining the rollers and the guide grooves reduces the transportation difficulty of the large-sized carrier plate, the lifting is driven by the pneumatic cylinder, the control is simple, the cost is low, the lifting movement drives the linkage block locking device, any additional driving device is not needed to lock the carrier plate, the lifting movement and the locking action are simultaneously operated, and therefore the test time and the production cost are saved.

Description

TECHNICAL FIELD

[0001] The present application relates to automatic test equipment, in particular to an automatic locking large pneumatic lifting platform. BACKGROUND

[0002] In the production process of electronic products such as smart phones and tablets, function testing has always been an important part, which directly determines whether the product can successfully enter the market. With the increasing market demand, how to improve the production capacity has always been the focus of all electronic manufacturers. Improving the efficiency of function testing is undoubtedly an effective way to shorten the production cycle of products. Therefore, electronic manufacturers continue to introduce automated test equipment to improve production efficiency, and they also prefer integrated automated test equipment that can test multiple products at the same time. The integrated test platform has a larger volume than the single product test fixture, and the weight of the product carrier is also heavier. Therefore, how to transport the carrier between stations and fix it in the test position has become a difficult problem.

[0003] In the existing automated test equipment, the test process is generally to first place the product on the carrier, then the carrier is transported to the vicinity of the test fixture by the transportation belt, then the carrier is grabbed by the mechanical hand and placed in the specific position of the test fixture, finally the test fixture moves the carrier and the product to the test position and fixes it, and then the test is started. For the automated test equipment that needs to transport large and heavy carriers, it is difficult to keep balance when the mechanical hand grabs the large size carrier, and the volume occupied by the mechanical hand is large and the cost is high. Or some test equipment adopts a semi-automatic scheme, which directly places the carrier on the test fixture by manpower, then fixes the carrier by the pneumatic mechanism and moves the carrier to the test position, and then tests. The difficulty of this method is that it is difficult to transport the heavy carrier by manpower, and the requirement for the operator is high. At the same time, the above test scheme needs a separate driving mechanism to complete the fixation of the carrier on the fixture.

[0004] In the face of the large and heavy test required by the carrier plate, if the full automatic test device is used, in order to meet the demand of being able to grab the larger size of the carrier plate and being able to bear the larger weight, the manipulator needs to be able to balance the carrier plate and has higher strength, so as to greatly improve the cost required by the manipulator. If the semi-automatic test device is used, the manual carrying of the large size and heavy weight carrier plate will be very laborious, and slight improper operation is extremely likely to damage the product, so it is very difficult to operate. In addition, whether the existing full automatic test device or the semi-automatic test device needs to have a separate driving carrier plate fixing module, which undoubtedly increases the production cost of the test device, and the fixing action and other actions are independent, and a part of time is needed to complete this action, which also increases the test time required and reduces the work efficiency. SUMMARY

[0005] In order to overcome the shortcomings of the prior art, the purpose of the present application is to provide an automatic locking large pneumatic lifting platform which can solve the above-mentioned related problems.

[0006] Design principle: a test carrier plate lifting platform with rollers which can slide and be locked through linkage can reduce the difficulty of carrier plate transportation and greatly simplify the structure of the carrier plate fixing mechanism. This linkage fixing mechanism can complete locking and releasing without the need of a special driving device. Specifically as follows: ①Roller legs are added at the bottom of the lifting platform of the carrier plate, and only the carrier plate needs to be pushed to transport the carrier plate platform to the required position, greatly reducing the difficulty of carrier plate transportation. ②Roller positioning devices are added on the corresponding test platform, when the carrier plate is pushed to the position, the force required to push the carrier plate suddenly increases and the carrier plate moves slightly downward, so the operator can definitely know whether the carrier plate has arrived. ③The downward movement of the carrier plate and the movement of the locking device are integrated together, which can be completed at the same time to shorten the test time. ④At the same time, the locking device cancels or does not need other driving devices, and the connecting assembly of the downward movement of the carrier plate drives the locking device to move, so as to reduce the space occupied by the locking mechanism and reduce the cost.

[0007] Technical scheme: the purpose of the present application is realized by the following technical scheme.

[0008] The utility model provides an automatic locking large -scale pneumatic lifting platform, which comprises a carrier plate platform and a test platform, the carrier plate platform is slidably positioned on the test platform, wherein the carrier plate platform comprises carrier plate legs, handles and a carrier plate base, a plurality of carrier plate legs are fixedly arranged on the lower surface of the carrier plate base, and a handle is arranged on each side of the upper surface of the carrier plate base; the test platform comprises a test base and pneumatic lifting locking modules, the top of four pneumatic lifting locking modules is fixed to the lower surface of the test base, guide grooves are arranged on the upper surface of the test base in parallel, and lifting positioning holes matched with the carrier plate legs are arranged on the guide grooves.

[0009] Preferably, the carrier plate leg comprises a support column and a roller, the top surface of the support column is fixed to the lower surface of the carrier plate base through a bolt, and the roller is pivotally connected to the support cavity arranged in the lower part of the support column.

[0010] Preferably, a beveled slot is arranged on the outer side of the middle part of the support column.

[0011] Preferably, the pneumatic lifting locking module comprises a support block, a linkage block, a double-rod air cylinder, a locking module, a linkage roller and a carrier plate positioning block, the linkage block is arranged on the upper surface of the output support plate of the top of the double-rod air cylinder, a positioning slot is arranged on the top surface of the linkage block in a cylindrical row, the carrier plate positioning block is embedded into the positioning slot and fixed through a bolt; the cylinder body side surface of the double-rod air cylinder is connected to one side surface of the support block, the locking module is arranged on the other side surface of the support block; a containing cavity is arranged in the upper middle part of the support block, the pivot of the linkage roller is arranged in the containing cavity, the side surface of the output support plate of the double-rod air cylinder is pivotally connected through the pivot of the linkage roller, and the top of the locking module is slidably connected on the linkage roller.

[0012] Preferably, the output support plate of the top of the double-rod air cylinder is provided with two connecting plates protruding towards one side surface of the support block in opposition, connecting through holes are arranged on the connecting plates, the linkage roller is arranged between the two connecting through holes through the roller pivot, and the linkage roller is positioned at the outer end through a snap spring.

[0013] Preferably, a plurality of linkage rollers are arranged on the roller pivot in parallel and coaxially, and the roller pivot between the two connecting plates is covered.

[0014] Preferably, the locking module comprises a fixed block, a spring, an equal height screw and a locking hook, a locking cavity is formed in the middle of one side of the fixed block, the equal height screw is sleeved in the spring and is inserted into the support through hole in the bottom surface of the locking cavity; the locking hook is an arc plate body with hooks at both ends, a hook body roller is arranged on the upper hook of the locking hook through pivot connection, and the hook body roller is matched with the inclined slot of the support pillar; a top roller is arranged in the middle lower part of the arch back of the locking hook, the locking hook is connected to the locking cavity through a bolt pivot, and the wheel surface of the top roller is abutted with the end surface of the top head of the equal height screw.

[0015] Preferably, two guide grooves are formed in parallel on both sides of the upper surface of the test base surface, a lifting positioning slot hole is formed near the end of one of the two guide grooves on the same side, and another lifting positioning slot hole is also formed near the other end of the other guide groove, and the plurality of support legs of the support plate base surface are staggered and arranged in matching with the plurality of lifting positioning slot holes.

[0016] Compared with the prior art, the large-scale pneumatic lifting platform has the following advantages: ①the large-scale, heavy-duty support plate is easy to transport; ②the linkage automatic locking device has a simple structure and does not need to be driven separately, thereby saving the jig space and production cost, and the locking action and the lifting action are completed in the same time period, thereby reducing the time cost; ③the pneumatic control lifting platform is easy to operate, has low cost and is easy to maintain; ④the combination of the rollers on the support legs and the guide grooves on the test platform can ensure the correctness of the moving direction of the support plate, and the combination of the grooves on the positioning blocks can also ensure the positioning of the support plate on the test platform. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure diagram of the automatic locking device of the pneumatic lifting platform.

[0018] Figure 2 It is a schematic diagram of the support leg.

[0019] Figure 3 It is a schematic diagram of the pneumatic lifting locking module.

[0020] Figure 4 It is a schematic diagram of the pneumatic lifting locking module from another perspective.

[0021] Figure 5 It is a schematic diagram of the pneumatic lifting locking module from another perspective.

[0022] Figure 6 It is an exploded schematic diagram of the pneumatic lifting locking module.

[0023] Figure 7Another perspective exploded view of the pneumatic lifting locking module;

[0024] Figure 8 A schematic view of the pneumatic lifting locking module without support blocks;

[0025] Figure 9 An exploded view of the locking module;

[0026] Figure 10 Another perspective exploded view of the locking module.

[0027] In the figure: 1, load plate leg; 2, handle; 3, load plate base surface; 4, test base surface; 41, guide groove; 42, lifting positioning hole; 5, pneumatic lifting locking module; 6, support column; 61, inclined slot; 7, roller; 8, support block; 9, linkage block; 10, double-rod cylinder; 11, locking module; 12, linkage roller; 13, load plate positioning block; 14, fixed block; 15, spring; 16, equal-height screw; 17, locking hook; 18, hook body roller; 19, top wheel. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Referring to Figures 1-10 An automatic locking large pneumatic lifting platform, which comprises a load plate platform and a test platform, wherein the load plate platform is slidingly positioned on the test platform.

[0030] Carrying plate platform

[0031] The load plate platform comprises load plate legs 1, handles 2 and a load plate base surface 3, a plurality of load plate legs 1 are fixedly arranged on both sides of the lower surface of the load plate base surface 3, and one handle 2 is arranged on each of the two side edges of the upper surface of the load plate base surface 3.

[0032] Referring to Figure 2 The load plate leg 1 comprises a support column 6 and a roller 7, the top surface of the support column 6 is fixed to the lower surface of the load plate base surface 3 by means of bolts, and the roller 7 is pivotally connected to the support cavity formed in the lower part of the support column 6.

[0033] A plurality of positioning holes according to different specifications of to-be-tested elements are formed in the load plate base surface 3.

[0034] Further, a slanted slot 61 is formed in the middle of the outer side of the support 6.

[0035] Test platform

[0036] The test platform comprises a test base 4 and four pneumatic lifting and locking modules 5, the top of which is fixed to the lower surface of the test base 4 on both sides, parallel guide slots 41 are formed on the upper surface of the test base 4, and lifting and positioning slot holes 42 are formed on the guide slots 41 and matched with the support legs 1 of the carrier plate.

[0037] Two parallel guide slots 41 are formed on the upper surface of the test base 4 on both sides, and a lifting and positioning slot hole 42 is formed near the end of one of the two guide slots 41 on the same side, and a lifting and positioning slot hole 42 is also formed near the other end of the other guide slot 41, and the multiple support legs 1 of the carrier plate base 3 bottom surface are staggered matched with the multiple lifting and positioning slot holes 42.

[0038] Referring to Figures 3-10 , the pneumatic lifting and locking module 5 comprises a support block 8, a linkage block 9, a double-rod pneumatic cylinder 10, a locking module 11, a linkage roller 12 and a carrier plate positioning block 13, the linkage block 9 is arranged on the upper surface of the output support plate of the top of the double-rod pneumatic cylinder 10, a positioning slot is formed on the top surface of the cylindrical linkage block 9, and the carrier plate positioning block 13 is embedded in the positioning slot and fixed by bolts; the cylinder body side of the double-rod pneumatic cylinder 10 is connected to one side of the support block 8, the locking module 11 is arranged on the other side of the support block 8; a receiving cavity is formed in the middle of the upper part of the support block 8, the pivot of the linkage roller 12 is arranged in the receiving cavity, the side of the output support plate of the double-rod pneumatic cylinder 10 is connected by the pivot of the linkage roller 12, and the top of the locking module 11 is slidingly connected on the linkage roller 12.

[0039] Among them, the output support plate at the top of the double-rod pneumatic cylinder 10 protrudes towards one side of the support block 8, two connecting plates are oppositely arranged, connecting holes are arranged on the connecting plates, the linkage roller 12 is arranged between the two connecting holes through the roller pivot, and the outer end is positioned by a snap spring.

[0040] Further, multiple linkage rollers 12 are arranged side by side and coaxially on the roller pivot, and the roller pivot between the two connecting plates is covered.

[0041] Referring to Figure 9 and Figure 10The locking module 11 includes a fixed block 14, a spring 15, a screw 16 and a locking hook 17. The fixed block 14 has a locking cavity in the middle of one side, the screw 16 is sleeved in the spring 15 and inserted into the support through hole in the bottom of the locking cavity, and the locking hook 17 is an arc plate body with hooks at both ends, the upper hook of the locking hook 17 is provided with a pivotally connected hook body roller 18, and the hook body roller 18 is matched with the inclined slot 61 of the support column 6, the top roller 19 is arranged in the middle lower part of the arch back of the locking hook 17, the locking hook 17 is pivotally connected to the locking cavity through a bolt, and the wheel surface of the top roller 19 is abutted with the end surface of the top head of the screw 16.

[0042] The fixed block 14 is connected to the support block 8 through four bolts.

[0043] Operation principle: Before the test starts, the carrier plate platform needs to be transported to the front of the test platform, the height of the transportation equipment table and the height of the test platform are adjusted to be the same, and then the carrier plate platform can be moved to the lifting position. In the process of pushing the carrier plate platform, the rollers 7 on the carrier plate legs 1 can guide the carrier plate platform and ensure the accuracy of the moving position by matching with the guide grooves 41 on the test platform. When the carrier plate platform moves to the lifting position, the rollers 7 enter the lifting positioning slot holes 42 of the linkage blocks 9, and the carrier plate positioning blocks 13 in the lifting positioning slot holes 42 of the linkage blocks 9 are relatively low, so the carrier plate platform as a whole will slightly move downward, and the required pushing force will obviously increase, which can make the operator or the pushing mechanism obviously feel the information that the carrier plate platform has reached the position. After the carrier plate platform reaches the position, the cylinder rod of the double-rod pneumatic cylinder 10 is retracted, and the carrier plate platform starts to descend. The locking module 11 is generally in an open state under the elastic force of the spring 15, but when the carrier plate platform descends to a certain height, the linkage rollers 12 on the linkage blocks 9 will contact the lower hooks of the locking hooks 17 and make the locking hooks 17 start to rotate along the rotating shaft, the upper hooks of the locking hooks 17 will gradually rotate towards the support column 6 of the carrier plate leg 1, and finally be higher than the inclined slot 61 of the support column 6, so as to achieve the purpose of locking the carrier plate platform. After the test is completed, the carrier plate platform moves upward under the pushing of the double-rod pneumatic cylinder 10, and the linkage blocks 9 no longer abut against the lower hooks of the locking hooks 17, so that the upper hooks of the locking hooks 17 start to rotate in the opposite direction of the carrier plate leg 1 under the action of the spring 15, and finally are no longer above the inclined slot 61 of the support column 6, that is, the entire carrier plate platform is released. The locking mechanism can prevent the displacement of the device caused by the insertion of the gas circuit or the circuit during the test, and the locking force of the pneumatic cylinder is not enough because the cylinder rod will have a certain displacement when the pneumatic cylinder is subjected to a larger external force, which can easily cause the loosening of each insertion module, so it is necessary to add a hard locking module.

[0044] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the same; although the present application has been described in detail with reference to the foregoing examples, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An automatic locking large pneumatic lifting platform, the pneumatic lifting platform comprising a load plate platform and a test platform, characterized in that: The carrier plate platform sliding positioning is arranged on the test platform, wherein the carrier plate platform comprises carrier plate legs (1), handles (2) and a carrier plate base surface (3), a plurality of carrier plate legs (1) are fixedly arranged on both sides of the lower surface of the carrier plate base surface (3), and one handle (2) is arranged on each side edge of the upper surface of the carrier plate base surface (3); the test platform comprises a test base surface (4) and pneumatic lifting and locking modules (5), the top of four pneumatic lifting and locking modules (5) is fixed to the lower surface of the test base surface (4), guide grooves (41) are opened on both sides of the upper surface of the test base surface (4) in parallel, and lifting and positioning slot holes (42) matched with the carrier plate legs (1) are opened on the guide grooves (41); The carrier plate leg (1) comprises a support column (6) and a roller (7), the top surface of the support column (6) is fixed to the lower surface of the carrier plate base surface (3) through a bolt, and the roller (7) is pivotally connected to the support cavity opened in the lower part of the support column (6); An inclined slot (61) is opened on the outer side of the middle part of the support column (6); The pneumatic lifting and locking module (5) comprises a support block (8), a linkage block (9), a double-rod air cylinder (10), a locking module (11), a linkage roller (12) and a carrier plate positioning block (13), the linkage block (9) is arranged on the upper surface of the output support plate of the double-rod air cylinder (10), a positioning groove is opened on the top surface of the cylindrical linkage block (9), the carrier plate positioning block (13) is embedded into the positioning groove and fixed through a bolt; the cylinder body side surface of the double-rod air cylinder (10) is connected to one side surface of the support block (8), the locking module (11) is arranged on the other side surface of the support block (8); a containing cavity is opened in the upper middle part of the support block (8), the pivot of the linkage roller (12) is arranged in the containing cavity, the side surface of the output support plate of the double-rod air cylinder (10) is pivotally connected through the pivot of the linkage roller (12), and the top of the locking module (11) is slidingly overlapped on the linkage roller (12); The locking module (11) comprises a fixed block (14), a spring (15), an equal-height screw (16) and a locking hook (17), a locking cavity is opened in the middle of one side surface of the fixed block (14), the equal-height screw (16) is sleeved in the spring (15) and slidingly inserted into the support through hole in the bottom surface of the locking cavity; the locking hook (17) is an arcuate plate body with hooks at both ends, a hook body roller pivotally connected to the upper hook of the locking hook (17) is arranged, and the hook body roller is matched with the inclined slot (61) of the support column (6); a top wheel is arranged in the middle lower part of the back of the locking hook (17), and the locking hook (17) is pivotally connected to the locking cavity through a bolt pin, and the wheel surface of the top wheel is abuttingly arranged with the end surface of the top stopping head of the equal-height screw (16).

2. The pneumatic lift platform according to claim 1, wherein: The output support plate on the top of the double-rod cylinder (10) protrudes towards one side of the support block (8) and is provided with two connecting plates in opposite arrangement, and connecting through holes are arranged on the connecting plates, the linkage roller (12) is arranged between the two connecting through holes through a roller pivot, and is positioned at the outer end through a snap spring.

3. The pneumatic lift platform according to claim 2, wherein: A plurality of the linkage rollers (12) are arranged side by side and coaxially on the roller pivot, and cover the roller pivot between the two connecting plates.

4. The pneumatic lift platform of claim 1, wherein: Two guide grooves (41) are arranged in parallel on both sides of the upper surface of the test base surface (4), a lifting positioning slot hole (42) is arranged at the end of one of the two guide grooves (41) on the same side, and a lifting positioning slot hole (42) is also arranged at the other end of the other guide groove (41), and the plurality of load plate supporting legs (1) arranged on the bottom surface of the load plate base surface (3) are staggered and arranged in matching relationship with the plurality of lifting positioning slot holes (42).

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