Opening and closing clamping mechanism

Abstract

An opening and closing clamping mechanism is arranged on a testing fixture and comprises a fixed seat, a rotating shaft, two opening and closing blocks and two positioning zero stickers, and the fixed seat is provided with at least one guide rod along the horizontal direction; the rotating shaft is vertically arranged on the fixing seat, a transmission disc is arranged at the upper end of the rotating shaft and can be driven by the rotating shaft to rotate, part of the transmission disc protrudes out of the two side faces of the fixing seat, two eccentric grooves which are arranged in a central symmetry mode are formed in the transmission disc, and a driving piece is connected to the lower end of the rotating shaft and used for driving the rotating shaft to rotate along the axis of the rotating shaft. The two opening and closing blocks are symmetrically arranged on the two sides of the fixing base in the extending direction of the guide rod, the opening and closing blocks are in sliding connection with the guide rod, limiting columns are arranged on the opening and closing blocks, the limiting columns penetrate into the eccentric grooves, and the limiting columns can relatively move along the extending tracks of the eccentric grooves so as to drive the two opening and closing blocks to synchronously move in the opposite directions or in the opposite directions; and the two positioning zero stickers are symmetrically mounted at the end parts of the two opening and closing blocks, and are provided with positioning supporting surfaces.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to an opening and closing clamping mechanism. Background Art

[0002] At present, during the production process of products, many parts need to be clamped and positioned during inspection. To control product quality and improve inspection efficiency, special jigs are required to ensure the positioning accuracy of the parts to be inspected.

[0003] In the prior art, the opening and closing clamping mechanism is a commonly used device for clamping and positioning. This mechanism generally controls the two clamping blocks to move towards or away from each other by screwing to achieve clamping or loosening of the parts to be inspected. However, by the screwing method, the screw needs to be rotated several circles to achieve the clamping effect. This structure is large in volume, and this structure is relatively inconvenient and time-consuming to operate, and also affects the inspection efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an opening and closing clamping mechanism to solve the problems of large volume, inconvenient operation and time-consuming operation of the opening and closing clamping mechanism in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An opening and closing clamping mechanism is arranged on a fixture, and includes a fixed seat, a rotating shaft, two opening and closing blocks and two positioning zero stickers. The fixed seat is provided with at least one guiding rod in the horizontal direction, and both ends of the guiding rod protrude from both side surfaces of the fixed seat; the rotating shaft is arranged on the fixed seat in the vertical direction, a transmission disk is arranged at the upper end of the rotating shaft, the rotating shaft can drive the transmission disk to rotate, and part of the transmission disk protrudes from both side surfaces of the fixed seat. The transmission disk is provided with two eccentric slots which are symmetrically arranged about the center. The lower end of the rotating shaft is connected with a driving part for driving the rotating shaft to rotate along the axis of the rotating shaft; the two opening and closing blocks are symmetrically arranged on both sides of the fixed seat along the extending direction of the guiding rod, and the opening and closing blocks are slidably connected with the guiding rod. The opening and closing blocks are provided with limiting columns which are matched with the eccentric slots, the limiting columns penetrate into the eccentric slots, and the limiting columns can relatively move along the extending track of the eccentric slots to drive the two opening and closing blocks to move towards or away from each other synchronously; the two positioning zero stickers are symmetrically installed at the ends of the two opening and closing blocks. The positioning zero stickers are used for clamping and positioning the product to be inspected. The positioning zero stickers have positioning supporting surfaces for zero sticking and positioning with the product to be inspected.

[0007] Further, the eccentric slot has a proximal end closer to the axis of the rotating shaft and a distal end farther from the axis of the rotating shaft, and the groove wall between the proximal end and the distal end is smoothly transitioned.

[0008] Further, the fixing base is provided with a mounting hole penetrating in the horizontal direction. The upper end of the rotating shaft protrudes into the mounting hole, and the transmission disk is rotatably arranged in the mounting hole. The transmission disk protrudes from both sides of the mounting hole, and at least part of the eccentric groove is exposed outside the mounting hole.

[0009] Further, a limiting protrusion is arranged at the upper end of the rotating shaft. The cross section of the limiting protrusion is non-circular. The transmission disk is provided with a limiting groove matching with the limiting protrusion. The limiting protrusion is used for fixing the transmission disk and keeping the transmission disk rotating synchronously with the rotating shaft.

[0010] Further, each opening and closing block is recessed with a receiving groove for receiving at least part of the transmission disk protruding from the fixing base.

[0011] Further, the limiting column passes through the eccentric groove, and both ends of the limiting column are mounted on the groove walls on both sides of the receiving groove.

[0012] Further, the positioning zero sticker is in a "U" shape; when the opening and closing clamping mechanism is in the clamping state, the two positioning zero stickers are abutted against each other, and a positioning hole is formed between the two positioning zero stickers for positioning and clamping the product to be inspected.

[0013] Further, a relief groove is recessed on the fixing base; when the opening and closing clamping mechanism is in the clamping state, the relief groove is communicated with the positioning hole, and the relief groove is used for avoiding the product to be inspected.

[0014] Further, the driving member is an operating rod, and the operating rod is fixedly connected to the lower end of the rotating shaft; the rotating shaft can be driven to rotate by toggling the operating rod.

[0015] Further, the driving member is a driving motor, and the driving motor drives the rotating shaft to rotate.

[0016] The beneficial effects of an opening and closing clamping mechanism and an energy storage device of the present utility model are as follows: Through the cooperation of the driving member, the rotating shaft and the transmission disk, not only the structure is compact, but also the rotation of the transmission disk is realized; through the cooperation of the eccentric groove, the limiting column and the opening and closing block, when the transmission disk rotates, the limiting column approaches or moves away from the axis of the transmission disk, so that the transmission disk drives the two opening and closing blocks to move towards or away from each other; by arranging the two eccentric grooves to be centrosymmetric, the two opening and closing blocks can move towards or away from each other synchronously; through the cooperation of the guide rod and the opening and closing block, the opening and closing block can stably move along the extending direction of the guide rod during the process of moving towards or away from each other, improving the accuracy of clamping and positioning; through the cooperation of the positioning zero sticker and the opening and closing block, the function of the positioning zero sticker for clamping the product to be inspected is realized. The opening and closing clamping mechanism is not only simple in structure and small in volume, but also convenient to operate, improving the production efficiency. Description of the Drawings

[0017] Figure 1 It is a perspective view of the opening and closing clamping mechanism of the present utility model.

[0018] Figure 2 The Figure 1 exploded perspective view of the opening and closing clamping mechanism shown in

[0019] Figure 3 The Figure 2 magnified perspective view of part A in

[0020] Figure 4 The Figure 1 partial schematic view of the opening and closing clamping mechanism shown in

[0021] Figure 5 The Figure 3 perspective view of the fixed seat of the opening and closing clamping mechanism shown in

[0022] Figure 6 The Figure 3 perspective view of the transmission disk of the opening and closing clamping mechanism shown in

[0023] Figure 7 The Figure 3 perspective view of the opening and closing block of the opening and closing clamping mechanism shown in

[0024] Figure 8 The Figure 7 exploded perspective view of the opening and closing block shown in

[0025] Figure 9 The Figure 3 perspective view of the positioning zero sticker of the opening and closing clamping mechanism shown in Specific embodiments

[0026] The following will further describe in detail the specific embodiments of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0027] The terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", etc. in the description and claims of the present invention indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of clearly expressing the technical solution and description, and therefore cannot be understood as a limitation to the present application.

[0028] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 9 , an opening and closing clamping mechanism, the opening and closing clamping mechanism is arranged on a checking fixture through a connecting seat 100, and includes:

[0029] Fixing base 10, at least one guiding rod 20 is arranged on the fixing base 10 in the horizontal direction, and both ends of the guiding rod 20 protrude from both side surfaces of the fixing base 10;

[0030] Rotating shaft 30, the rotating shaft 30 is arranged on the fixing base 10 in the vertical direction, a driving disc 40 is arranged at the upper end of the rotating shaft 30, the rotating shaft 30 can drive the driving disc 40 to rotate, and part of the driving disc 40 protrudes from both side surfaces of the fixing base 10, two eccentric grooves 41 which are centrosymmetrically arranged are formed in the driving disc 40, the lower end of the rotating shaft 30 is connected with a driving member 80, and the driving member 80 is used for driving the rotating shaft 30 to rotate along the axis of the rotating shaft 30;

[0031] Two opening and closing blocks 50, the two opening and closing blocks 50 are symmetrically arranged on both sides of the fixing base 10 along the extending direction of the guiding rod 20, and the opening and closing blocks 50 are slidably connected with the guiding rod 20, a limiting column 60 which is matched with the eccentric groove 41 is arranged on the opening and closing block 50, the limiting column 60 penetrates into the eccentric groove 41, and the limiting column 60 can relatively move along the extending track of the eccentric groove 41 to drive the two opening and closing blocks 50 to move synchronously towards or away from each other;

[0032] Two positioning zero stickers 70, the two positioning zero stickers 70 are symmetrically installed at the ends of the two opening and closing blocks 50, the positioning zero stickers 70 are used for clamping and positioning the product to be inspected, the positioning zero stickers 70 have a positioning support surface 71, and the positioning support surface 71 is used for zero-sticking and positioning with the product to be inspected.

[0033] As above, for the opening and closing clamping mechanism proposed by the present utility model, through the cooperation of the driving member 80, the rotating shaft 30 and the driving disc 40, not only the structure is compact, but also the rotation of the driving disc 40 is realized; through the cooperation of the eccentric groove 41, the limiting column 60 and the opening and closing block 50, when the driving disc 40 rotates, the limiting column 60 approaches or moves away from the axis of the driving disc 40, so as to realize that the driving disc 40 drives the two opening and closing blocks 50 to move towards or away from each other; by arranging the two eccentric grooves 41 in a centrosymmetric manner, the two opening and closing blocks 50 can move synchronously towards or away from each other; through the cooperation of the guiding rod 20 and the opening and closing block 50, the opening and closing block 50 can stably move along the extending direction of the guiding rod 20 during the process of moving towards or away from each other, improving the clamping and positioning accuracy; through the cooperation of the positioning zero sticker 70 and the opening and closing block 50, the function of the positioning zero sticker 70 for clamping the product to be inspected is realized. The opening and closing clamping mechanism not only has a simple structure and a small volume, but also is convenient to operate, improving the production efficiency.

[0034] Please refer to Figure 4, the eccentric groove 41 has a proximal end 411 closer to the axis of the rotating shaft 30 and a distal end 412 farther from the axis of the rotating shaft 30, and the groove wall between the proximal end 411 and the distal end 412 is smoothly transitioned. The eccentric groove 41 functions to drive the opening and closing block 50 to move.

[0035] When the limit post 60 relatively moves from the proximal end 411 to the distal end 412, the distance between the limit post 60 and the axis of the transmission disc 40 gradually increases, then the limit post 60 gradually moves away from the fixed seat 10, so as to realize the synchronous and opposite movement of the two opening and closing blocks 50; when the limit post 60 relatively moves from the distal end 412 to the proximal end 411, the distance between the limit post 60 and the axis of the transmission disc 40 gradually decreases, then the limit post 60 gradually approaches the fixed seat 10, so as to realize the synchronous and opposite movement of the two opening and closing blocks 50. Finally, the function of clamping and positioning the product to be inspected by the two positioning zero stickers 70 is realized.

[0036] Furthermore, please refer to Figure 4 - Figure 5 , the fixed seat 10 is provided with an installation hole 11 penetrating in the horizontal direction, the upper end of the rotating shaft 30 protrudes into the installation hole 11, the transmission disc 40 is rotatably arranged in the installation hole 11, and the transmission disc 40 is fixed to the upper end of the rotating shaft 30 by a fastener.

[0037] The transmission disc 40 protrudes from both sides of the installation hole 11, and at least part of the eccentric groove 41 is exposed outside the installation hole 11, such a setting is to ensure that the limit post 60 can pass through the eccentric groove 41 without being blocked by the fixed seat 10.

[0038] More specifically, please refer to Figure 3 and Figure 6 , the upper end of the rotating shaft 30 is provided with a limit protrusion 31, the cross section of the limit protrusion 31 is non-circular, the transmission disc 40 is provided with a limit groove 42 matching with the limit protrusion 31, and the limit protrusion 31 is used to fix the transmission disc 40 and keep the transmission disc 40 rotating synchronously with the rotating shaft 30.

[0039] More specifically, please refer to Figure 7 - Figure 8Each of the opening and closing blocks 50 is concavely provided with a receiving groove 51, and the receiving groove 51 is used to receive at least a portion of the transmission plate 40 protruding out of the fixing seat 10; the limiting column 60 passes through the eccentric groove 41, and the two ends of the limiting column 60 are mounted on the groove walls on both sides of the receiving groove 51. In this embodiment, the limiting column 60 is detachably mounted on the receiving groove 51, and the groove walls on both sides of the receiving groove 51 are provided with matching holes 52 for mounting the limiting column 60, and the opening and closing block 50 is provided with a groove 53 connected with the matching hole 52 along the extending direction of the matching hole 52, and the groove 53 facilitates the installation or removal of the limiting column 60.

[0040] The opening and closing block 50 is provided with a movable hole 54 cooperating with the guide rod 20 along the extending direction of the guide rod 20, and a sleeve 55 is provided in the movable hole 54 to slide with the guide rod 20. The guide rod 20 plays a guiding role, which can improve the stability of the movement of the two opening and closing blocks 50, thereby improving the clamping and positioning accuracy of the two positioning zero stickers 70. In this embodiment, four guide rods 20 are provided on the fixing seat 10, and correspondingly, the opening and closing block 50 is provided with four movable holes 54.

[0041] See also Figure 1 , Figure 5 and Figure 9 , the positioning zero sticker 70 is in a "凵" shape; when the opening and closing clamping mechanism is in a clamping state, the two positioning zero stickers 70 are abutted against each other, and a positioning hole 90 is formed between the two positioning zero stickers 70, and the positioning hole 90 is used to locate and clamp the product to be inspected.

[0042] More specifically, the fixing seat 10 is provided with an escape groove 12 ; when the opening and closing clamping mechanism is in a clamping state, the escape groove 12 is connected to the positioning hole 90 , and the escape groove 12 is used to escape the product to be inspected.

[0043] In this example, see Figure 3 and Figure 5 The driving member 80 is an operating rod, and the operating rod is fixedly connected to the lower end of the rotating shaft 30; the rotating shaft 30 can be driven to rotate by turning the operating rod.

[0044] In another embodiment, the driving member 80 is a driving motor, and the driving motor drives the rotating shaft 30 to rotate through a transmission structure.

[0045] The utility model has the beneficial effects of an opening and closing clamping mechanism and an energy storage device: the opening and closing clamping mechanism is not only simple in structure and small in size, but also easy to operate, thereby improving production efficiency.

[0046] The above are only the specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claimed rights.

Claims

1. An opening and closing clamping mechanism is provided on the inspection fixture, characterized in that, include: A fixing seat, wherein the fixing seat is provided with at least one guide rod in the horizontal direction, and both ends of the guide rod protrude out of two side surfaces of the fixing seat; A rotating shaft, the rotating shaft is vertically arranged on the fixing seat, a transmission disc is arranged at the upper end of the rotating shaft, the rotating shaft can drive the transmission disc to rotate, and part of the transmission disc protrudes out of the two side surfaces of the fixing seat, the transmission disc is provided with two eccentric grooves arranged symmetrically with the center, and a driving member is connected to the lower end of the rotating shaft, and the driving member is used to drive the rotating shaft to rotate along the axis of the rotating shaft; Two opening and closing blocks, the two opening and closing blocks are symmetrically arranged on both sides of the fixing seat along the extension direction of the guide rod, and the opening and closing blocks are slidably connected with the guide rod, and the opening and closing blocks are provided with a limiting column matched with the eccentric groove, the limiting column penetrates into the eccentric groove, and the limiting column can relatively move along the extension track of the eccentric groove to drive the two opening and closing blocks to move synchronously toward or away from each other; Two positioning zero stickers are symmetrically installed at the ends of the two opening and closing blocks. The positioning zero stickers are used to clamp and position the product to be inspected. The positioning zero stickers have a positioning support surface, and the positioning support surface is used to zero and position the product to be inspected.

2. The opening and closing clamping mechanism according to claim 1, wherein The eccentric groove has a proximal end closer to the axis of the rotating shaft and a distal end farther from the axis of the rotating shaft, and the groove wall between the proximal end and the distal end has a smooth transition.

3. The opening and closing clamping mechanism according to claim 1, characterized in that The fixing seat is provided with a mounting hole in the horizontal direction, the upper end of the rotating shaft protrudes into the mounting hole, the transmission plate is rotatably arranged in the mounting hole, the transmission plate protrudes out of both sides of the mounting hole, and at least part of the eccentric groove is exposed in the mounting hole.

4. The opening and closing clamping mechanism according to claim 3, characterized in that, A limiting protrusion is arranged at the upper end of the rotating shaft, and the cross section of the limiting protrusion is non-circular. The transmission disc is provided with a limiting groove matched with the limiting protrusion, and the limiting protrusion is used to fix the transmission disc and keep the transmission disc and the rotating shaft rotating synchronously.

5. The opening and closing clamping mechanism according to claim 3, characterized in that Each of the opening and closing blocks is concavely provided with a receiving groove, and the receiving groove is used to receive at least a portion of the transmission disk protruding out of the fixing seat.

6. The opening and closing clamping mechanism according to claim 5, wherein, The limiting column passes through the eccentric groove, and two ends of the limiting column are installed on the groove walls on both sides of the accommodating groove.

7. The opening and closing clamping mechanism according to claim 1, characterized in that, The positioning zero sticker is in a "凵" shape; when the opening and closing clamping mechanism is in a clamping state, the two positioning zero stickers abut against each other, and a positioning hole is formed between the two positioning zero stickers, and the positioning hole is used to locate and clamp the product to be inspected.

8. The opening and closing clamping mechanism according to claim 7, characterized in that, The fixing seat is provided with an escape groove; when the opening and closing clamping mechanism is in a clamping state, the escape groove is communicated with the positioning hole, and the escape groove is used to escape the product to be inspected.

9. The opening and closing clamping mechanism according to claim 1, wherein, The driving member is an operating rod, and the operating rod is fixedly connected to the lower end of the rotating shaft; the rotating shaft can be driven to rotate by turning the operating rod.

10. The opening and closing clamping mechanism according to claim 1, wherein, The driving member is a driving motor, and the driving motor drives the rotating shaft to rotate.

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