Anti-falling clamping device

Abstract

The embodiment of the utility model provides an anti-falling clamping device, and relates to the field of mechanical equipment. Comprising a fixing plate, a positive and negative spiral lead screw is arranged above the fixing plate, and one end of the positive and negative spiral lead screw is connected with a worm and gear speed reducer; a sliding hole is formed in the fixing plate, a sliding rail is arranged at the bottom of the fixing plate, two clamping pieces are connected to the sliding rail in a sliding mode, and the two clamping pieces are connected to different rotating directions of the positive and negative spiral lead screws respectively. The PCBA board clamping and carrying device can be suitable for clamping and carrying PCBA boards with variable widths, loosening and falling are not prone to occurring, carrying is safer, and the efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the field of mechanical equipment, in particular to an anti-drop clamping device. Background Art

[0002] With the rapid development of the electronics industry, PCBA has become an important hardware carrier in the server architecture. During the PCBA production and manufacturing process in the factory or during the automated assembly process, it is often necessary to clamp and transport the PCBA board.

[0003] Because PCBAs of different products come in different sizes, the clamping spacing of the clamping mechanism needs to be adjusted during handling. Existing handling devices usually use vertical clamping mechanisms, which require replacing the clamping mechanism for different PCBA specifications. Furthermore, typical clamping mechanisms cannot be locked after clamping, resulting in the risk of loosening and dropping during handling. To prevent dropping, some clamping structures are set to a high clamping force, which can easily damage the PCBA. Utility Model Content

[0004] In view of the above problems, embodiments of the present invention are proposed to provide an anti-drop clamping device that overcomes the above problems or at least partially solves the above problems.

[0005] A drop prevention clamping device includes a fixed plate, a forward and reverse spiral screw rod is provided above the fixed plate, one end of the forward and reverse spiral screw rod is connected to a worm gear reducer; a sliding hole is opened in the fixed plate, a sliding rail is provided at the bottom of the fixed plate, the slide rail is slidably connected to two clamping members, and the two clamping members are respectively connected to different rotation directions of the forward and reverse spiral screw rod.

[0006] Preferably, the worm gear reducer is arranged at one end of the top of the fixed plate, and a rotating bearing seat is provided at the other end of the top of the fixed plate. One end of the forward and reverse spiral screw is connected to the worm gear reducer, and the other end of the forward and reverse spiral screw is rotatably connected to the rotating bearing seat.

[0007] Preferably, the forward and reverse spiral screw comprises a forward rotation portion and a reverse rotation portion, and two sliding holes are provided, and the two sliding holes correspond to the forward rotation portion and the reverse rotation portion respectively.

[0008] Preferably, the clamping member is slidably connected to the slide rail and the forward and reverse spiral screw rods via a slider, and the slider passes through the slide hole and is connected to the forward and reverse spiral screw rods.

[0009] Preferably, a sensing sheet is provided on one side of the slider, and a plurality of slot-type photoelectric sensors are provided on the fixing plate, and the sensing sheet corresponds to the axes of the plurality of slot-type photoelectric sensors.

[0010] Preferably, the clamping member includes a connecting plate and a clamping rod, the top of the connecting plate is fixedly connected to the slider, and two clamping rods are provided, and the two clamping rods are arranged at two ends of the connecting plate opposite to each other.

[0011] Preferably, a plurality of transversely arranged mounting holes are provided at both ends of the connecting plate, and one end of the clamping rod is mounted in the mounting hole via a locking member.

[0012] Preferably, the other end of the clamping rod is bent toward the clamping rod on the opposite side.

[0013] Preferably, the slide rail is a double rail.

[0014] Preferably, a mounting bracket is provided on the top of the fixing plate, and the mounting bracket is used to install the anti-drop clamping device. The mounting bracket is provided with a through hole for the forward and reverse spiral screw rods to pass through.

[0015] This application specifically includes the following advantages:

[0016] In an embodiment of the present application, a fixed plate is provided above the fixed plate with a forward and reverse spiral screw, one end of which is connected to a worm gear reducer; a sliding hole is provided on the fixed plate, and a slide rail is provided at the bottom of the fixed plate, and the slide rail is slidably connected to two clamping members, and the two clamping members are respectively connected to different rotation directions of the forward and reverse spiral screws. By providing forward and reverse spiral screws and slidingly connecting the two clamping members to different rotation directions of the forward and reverse spiral screws, the width distance between the two clamping members can be adjusted, which is suitable for clamping and transporting PCBA boards of different widths; one end of the forward and reverse spiral screws is connected to the worm gear reducer, and the self-locking structure of the worm gear reducer can prevent the screw from loosening during transportation, thereby causing the PCBA board to fall. The present application can be used for clamping and transporting PCBA boards of varying widths, and is not easy to loosen or fall, making transportation safer and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for the description of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 A schematic diagram of the axonometric structure of an anti-drop clamping device provided in an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the bottom axonometric structure of an anti-drop clamping device provided in an embodiment of the utility model.

[0020] Figure numerals: 10, fixed plate; 11, sliding hole; 12, sliding rail; 20, forward and reverse spiral screw; 21, forward rotation part; 22, reverse rotation part; 30, worm gear reducer; 40, clamping part; 41, connecting plate; 42, clamping rod; 43, mounting hole; 50, rotating bearing seat; 60, slider; 61, sensor plate; 70, slot-type photoelectric sensor; 80, mounting bracket. DETAILED DESCRIPTION

[0021] To make the objectives, features, and advantages of this application more readily apparent, the present application is further described below in conjunction with the accompanying drawings and specific embodiments. It is apparent that the embodiments described are only a portion of the embodiments of this application, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments in this application without inventive effort are also within the scope of protection of this application.

[0022] Reference Figure 1-Figure 2 , shows an anti-drop clamping device of the present invention, which includes a fixed plate 10, a forward and reverse spiral screw 20 is provided above the fixed plate 10, and one end of the forward and reverse spiral screw 20 is connected to the worm gear reducer 30; the fixed plate 10 is provided with a sliding hole 11, and a sliding rail 12 is provided at the bottom of the fixed plate 10, and the slide rail 12 is slidably connected to two clamping members 40, and the two clamping members 40 are respectively connected to different rotation directions of the forward and reverse spiral screw 20.

[0023] In an embodiment of the present application, a fixed plate 10 is provided with a forward and reverse helical screw 20 above the fixed plate 10, one end of which is connected to a worm gear reducer 30; a sliding hole 11 is provided on the fixed plate 10, and a slide rail 12 is provided at the bottom of the fixed plate 10, and two clamping members 40 are slidably connected to the slide rail 12, and the two clamping members 40 are respectively connected to different rotation directions of the forward and reverse helical screw 20. By providing the forward and reverse helical screw 20 and slidably connecting the two clamping members 40 to different rotation directions of the forward and reverse helical screw 20, the width distance between the two clamping members 40 can be adjusted, which is suitable for clamping and transporting PCBA boards of different widths; one end of the forward and reverse helical screw 20 is connected to the worm gear reducer 30, and the self-locking structure of the worm gear reducer 30 can prevent the screw from loosening during transportation, thereby causing the PCBA board to fall. This application can be applied to the clamping and transportation of PCBA boards with varying widths, and is not prone to loosening or falling, making transportation safer and more efficient.

[0024] Next, an anti-drop clamping device in this exemplary embodiment will be further described.

[0025] In the embodiment of the present application, a forward and reverse spiral screw 20 is provided above the fixed plate 10, and the threads of the forward and reverse spiral screw 20 at both ends have opposite rotation directions, including a forward rotation part 21 and a reverse rotation part 22. One end of the forward and reverse spiral screw 20 is connected to a worm gear reducer 30, and the forward and reverse spiral screw 20 is driven to rotate by the worm gear reducer 30. By utilizing the self-locking principle of the worm gear, when the forward and reverse spiral screw 20 is stopped from being driven to rotate, the worm gear is locked so that the forward and reverse spiral screw 20 will not rotate loose; the fixed plate 10 is provided with a sliding hole 11, and a sliding rail 12 is provided at the bottom of the fixed plate 10. The slide rail 12 is slidably connected to two clamping members 40, and the two clamping members 40 are respectively connected to the different rotation directions of the forward and reverse spiral screw 20. By driving the two clamping members 40 to move relative to each other through the forward and reverse spiral screws 20, the distance between the two clamping members 40 can be adjusted, thereby being suitable for clamping and transporting PCBA boards of different widths; the self-locking of the worm gear prevents the screw from loosening, and the clamping members 40 from shifting in the clamping direction after clamping the PCBA board, which can prevent the PCBA board from falling during transportation and improve transportation efficiency.

[0026] As an example, the clamping member 40 includes a connecting plate 41 and a clamping rod 42. The top of the connecting plate 41 is fixedly connected to the slider 60. Two clamping rods 42 are provided, and the two clamping rods 42 are oppositely arranged at the two ends of the connecting plate 41. By providing the structure that contacts the PCBA board as two rod-shaped members, the contact area with the PCBA board can be reduced, thereby preventing damage to the PCBA board.

[0027] The connecting plate 41 has multiple transversely arranged mounting holes 43 at both ends, and one end of the clamping rod 42 is mounted in the mounting hole 43 via a locking member. By providing multiple mounting holes 43 for mounting the clamping rods 42, the distance between the two clamping rods 42 can be adjusted, making it suitable for clamping PCBAs of different sizes.

[0028] The other end of the clamping rod 42 is bent toward the clamping rod 42 on the opposite side. By setting the bottom end of the clamping rod 42 in a bent shape, the bent portions of the four opposing clamping rods 42 jointly support and limit the PCBA board, thereby improving the handling stability of the PCBA board.

[0029] As an example, the worm gear reducer 30 is provided at one end of the top of the fixed plate 10, and a rotating bearing seat 50 is provided at the other end of the top of the fixed plate 10. One end of the forward and reverse helical screw 20 is connected to the worm gear reducer 30, and the other end of the forward and reverse helical screw 20 is rotatably connected to the rotating bearing seat 50. The worm gear reducer 30 and the rotating bearing seat 50 support the forward and reverse helical screw 20, so that it has sufficient rotation space.

[0030] As an example, the fixed plate 10 has two elongated sliding holes 11, corresponding to the forward and reverse rotation portions 21 and 22, respectively. The clamping member 40 is slidably connected to the slide rail 12 and the forward and reverse helical screw 20 via a slider 60, which passes through the sliding holes 11 and is connected to the forward and reverse helical screw 20. The slider 60 moves on the forward and reverse helical screw 20, and the elongated sliding holes 11 provide sufficient space for the slider 60 to move without restriction.

[0031] As an example, a sensing piece 61 is provided on one side of the slider 60, and a plurality of slot-shaped photoelectric sensors 70 are provided on the fixed plate 10. The sensing piece 61 corresponds to the axis of the plurality of slot-shaped photoelectric sensors. The plurality of slot-shaped photoelectric sensors 70 can be set in a fixed position, and the spacing between this position and the opposite clamping member 40 is the width dimension of the PCBA boards of different widths. This design can better limit the position of PCBA boards of different widths when clamping. When clamping and transporting a PCBA board of one width, the slider 60 drives one clamping member 40 to move. When the sensing piece 61 moves to the position of the corresponding slot-shaped photoelectric sensor 70, the detection signal of the slot-shaped photoelectric sensor 70 is used to control the operation of the worm gear reducer 30, thereby controlling the screw to stop rotating, thereby controlling the slider 60 to stop at this position. This can prevent damage to the PCBA board caused by excessive clamping force due to human judgment of the clamping position.

[0032] As an example, the slide rail 12 at the bottom of the fixing plate 10 is a double rail, which can improve the balance and stability of the clamping member 40 during the sliding process.

[0033] As an example, a mounting bracket 80 is provided on the top of the fixing plate 10, and the mounting bracket 80 is used to install the anti-drop clamping device, and the device can be fixed to the conveying mechanism through the mounting bracket 80; the mounting bracket 80 is provided with a through hole for the forward and reverse spiral screw rods 20 to pass through, so as to avoid affecting the rotation of the screw rod.

[0034] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0035] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0036] The above is a detailed introduction to an anti-drop clamping device provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for general technical personnel in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An anti-drop clamping device, characterized in that: It includes a fixed plate, above which are provided a forward and reverse spiral screw, one end of which is connected to a worm gear reducer; a sliding hole is opened on the fixed plate, and a sliding rail is provided at the bottom of the fixed plate, and the slide rail is slidably connected to two clamping members, and the two clamping members are respectively connected to different rotation directions of the forward and reverse spiral screw.

2. The anti-drop clamping device according to claim 1, characterized in that: The worm gear reducer is arranged at one end of the top of the fixed plate, and a rotating bearing seat is provided at the other end of the top of the fixed plate. One end of the forward and reverse spiral screws is connected to the worm gear reducer, and the other end of the forward and reverse spiral screws is rotatably connected to the rotating bearing seat.

3. The anti-drop clamping device according to claim 1, characterized in that: The forward and reverse spiral screw comprises a forward rotation portion and a reverse rotation portion. Two sliding holes are provided, and the two sliding holes correspond to the forward rotation portion and the reverse rotation portion respectively.

4. The anti-drop clamping device according to claim 3, characterized in that: The clamping member is slidably connected to the slide rail and the forward and reverse spiral screw rods through a slider, and the slider passes through the slide hole and is connected to the forward and reverse spiral screw rods.

5. The anti-drop clamping device according to claim 4, characterized in that: A sensing sheet is provided on one side of the sliding block, and a plurality of slot-type photoelectric sensors are provided on the fixing plate. The sensing sheet corresponds to the axes of the plurality of slot-type photoelectric sensors.

6. The anti-drop clamping device according to claim 4, characterized in that: The clamping member includes a connecting plate and a clamping rod. The top of the connecting plate is fixedly connected to the slider. Two clamping rods are provided, and the two clamping rods are relatively arranged at two ends of the connecting plate.

7. The anti-drop clamping device according to claim 6, characterized in that: A plurality of transversely arranged mounting holes are provided at both ends of the connecting plate, and one end of the clamping rod is mounted in the mounting hole through a locking member.

8. The anti-drop clamping device according to claim 6, characterized in that: The other end of the clamping rod is bent toward the clamping rod on the opposite side.

9. The anti-drop clamping device according to claim 1, characterized in that: The slide rails are double rails.

10. The anti-drop clamping device according to claim 1, characterized in that: A mounting bracket is provided on the top of the fixing plate, and the mounting bracket is used to install the anti-drop clamping device. The mounting bracket is provided with a through hole for the forward and reverse spiral screw rods to pass through.

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