Equally-spaced positioning and grabbing device

Abstract

The utility model discloses an equally-spaced positioning and grabbing device which comprises a fixing frame, and a guide shaft and a driving assembly are arranged on the fixing frame. A plurality of fixed clamping jaws are fixedly arranged on the guide shaft at intervals, and a movable clamping jaw corresponding to each fixed clamping jaw is arranged on the guide shaft in a sliding manner; the elastic piece is used for elastically driving the movable clamping jaw to move towards the corresponding fixed clamping jaw; the driving assembly comprises a telescopic cylinder and a clamping jaw shifting piece, and shifting plugs are arranged on the clamping jaw shifting piece and correspond to the movable clamping jaws; and the telescopic cylinder extends or retracts to drive the clamping jaw shifting piece to move, so that the shifting plug shifts the movable clamping jaw to move away from the corresponding fixed clamping jaw. The clamp is fixed through the fixed clamping jaw, and the movable clamping jaw slides close to or away from the fixed clamping jaw so as to clamp a product; the position precision of clamped products can be improved, the device is simple in structure, the movable clamping jaw is driven to move towards the corresponding fixed clamping jaw through the elastic force of the elastic piece, and the device can adapt to clamping of products of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, in particular to an equidistant positioning and grabbing device. Background Art

[0002] The equidistant module in the automation equipment is a device for simultaneously grasping multiple products with the same specification and size. The equidistant module usually includes multiple clamping parts, and each clamping part is provided with a movable claw on both sides. When the clamping part grasps the product, each clamping part moves toward the product at the same time through two movable claws to clamp the product. Since the two movable claws move at the same time, position deviation is easy to occur when clamping the product. Moreover, since the relative movement of the two movable claws of the clamping part is controlled by the module, the moving distance of the movable claws is fixed, and only products with the same specification and size can be clamped. When the product size deviates, the product with size deviation cannot be clamped, and the scope of application is small. Utility Model Content

[0003] The utility model aims to provide an equidistant positioning grabbing device which has high grabbing position accuracy, wide application range and simple structure.

[0004] To achieve the above-mentioned purpose, the solution of the utility model is: an equidistant positioning grabbing device, comprising a fixing frame, on which a guide shaft and a driving assembly are arranged;

[0005] A plurality of fixed clamping jaws are fixedly arranged at intervals on the guide shaft, and a movable clamping jaw is slidably arranged on the guide shaft corresponding to each fixed clamping jaw;

[0006] It also includes an elastic member, which is used to elastically drive the movable clamping jaw to move toward the corresponding fixed clamping jaw;

[0007] The driving assembly includes a telescopic cylinder and a clamping jaw member, on which each movable clamping jaw is provided with a plug; the telescopic cylinder extends or retracts to drive the clamping jaw member to move, so that the plug moves the movable clamping jaw away from the corresponding fixed clamping jaw.

[0008] Furthermore, the elastic member is arranged on a side of the movable clamping jaw away from the corresponding fixed clamping jaw.

[0009] Furthermore, a guide hole is provided on the movable clamping jaw, and the guide shaft passes through the guide hole, so that the movable clamping jaw is slidably arranged on the guide shaft.

[0010] Furthermore, it also includes a locking piece, the fixed clamp is provided with a mounting hole and a locking hole, the locking hole passes through the mounting hole, the guide shaft passes through the mounting hole, the locking piece is inserted into the locking hole and abuts against the guide shaft to fix the fixed clamp on the guide shaft, and the locking piece withdraws from the locking hole to loosen the fixed clamp from the guide shaft.

[0011] Furthermore, a graphite copper sleeve is arranged between the guide hole and the guide shaft. The graphite copper sleeve is tubular, and the outer contour of the graphite copper sleeve is consistent with the inner contour of the guide hole.

[0012] Furthermore, the fixing frame includes a clamping claw plug plate, and the clamping claw plug plate is provided with a slot corresponding to each fixed clamping claw, and the insertion end of the fixed clamping claw is inserted into the slot, and the size of the slot along the guide axis direction is larger than the size of the insertion end of the fixed clamping claw.

[0013] Furthermore, the number of guide shafts is two, the number of guide holes of the movable clamping jaw is correspondingly set to two, and the number of mounting holes of the fixed clamping jaw is also correspondingly set to two.

[0014] Furthermore, a push piece is fixed to the telescopic end of the telescopic cylinder, a plug hook is formed on the push piece, and a plug hole for inserting the plug hook is provided on the clamping claw push piece, and the size of the plug hole is larger than the size of the plug hook.

[0015] Furthermore, the clamping claw member is connected to a linear slide rail assembly, and the linear slide rail assembly is arranged on a fixed frame.

[0016] After adopting the above scheme, the beneficial effects of the utility model are:

[0017] The utility model fixes the product by fixing the fixed jaw, and the movable jaw slides towards or away from the fixed jaw to clamp the product, which can ensure an absolutely fixed clamping position, improve the accuracy of clamping the product, and ensure the position accuracy of the clamped product. The elastic force of the elastic part drives the movable jaw to move toward the corresponding fixed jaw, and can automatically adjust the distance between the movable jaw and the corresponding fixed jaw according to the size of the product. It is not limited to clamping products of uniform specifications and sizes, and can also be applied to products with different sizes. It has a simple structure and flexible and convenient application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the front view of the utility model.

[0019] Figure 2 It is a stereogram of the utility model.

[0020] Figure 3 It is a three-dimensional diagram of the utility model from another angle.

[0021] Figure 4 It is a structural schematic diagram of a fixing frame of the utility model.

[0022] Figure 5 It is a structural schematic diagram of the driving device of the utility model.

[0023] Figure 6 The utility model is a structural schematic diagram of the fixed clamping jaw, the movable clamping jaw and the guide shaft assembly.

[0024] Description of labels:

[0025] 1-fixed frame, 2-guide shaft, 3-drive assembly, 4-fixed jaw, 5-movable jaw, 6-elastic part, 7-locking part, 8-graphite copper sleeve, 9-linear slide assembly, 10-product, 11-jaw plug plate, 12-mechanism connecting plate, 13-telescopic cylinder fixing plate, 14-guide shaft fixing part, 31-telescopic cylinder, 32-jaw puller, 33-puller, 41-mounting hole, 42-locking hole, 43-mounting groove, 51-guide hole, 91-linear slide, 92-slider, 111-slot, 321-plug, 322-jack, 331-hook. DETAILED DESCRIPTION

[0026] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the use of terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, so they cannot be understood as limiting the specific protection scope of the utility model.

[0028] like Figures 1 to 6 As shown, an equidistant positioning and grasping device comprises a fixed frame 1, on which a guide shaft 2 and a driving assembly 3 are arranged; a plurality of fixed jaws 4 are fixedly arranged at intervals on the guide shaft 2, and a movable jaw 5 is slidably arranged on the guide shaft 2 corresponding to each fixed jaw 4; it also comprises an elastic member 6, and the elastic member 6 is used to elastically drive the movable jaw 5 to move toward the corresponding fixed jaw 4; the driving assembly 3 comprises a telescopic cylinder 31 and a jaw shifter 32, and a plug 321 is arranged on the jaw shifter 32 corresponding to each movable jaw 5; the telescopic cylinder 31 extends or retracts to drive the jaw shifter 32 to move, so that the plug 321 shifts the movable jaw 5 to move away from the corresponding fixed jaw 4. Specifically, a plurality of fixed jaws 4 are fixedly arranged on the guide shaft 2 at equal intervals. The fixed jaws 4 are fixed, and the movable jaws 5 move closer to or away from the fixed jaws 4 to clamp the product 10 or loosen the product 10. This can ensure absolutely equal-interval clamping positions with high precision, thereby improving the accuracy of clamping the product 10. Of course, the plurality of fixed jaws 4 can also be arranged at unequal intervals, and technicians in this field can make specific designs based on the placement of the products, without being limited to this.

[0029] Furthermore, the movable jaw 5 is driven by the elastic force of the elastic member 6 to move toward the corresponding fixed jaw 4, and the distance between the movable jaw 5 and the corresponding fixed jaw 4 can be automatically adjusted according to the different sizes of the products, so as to clamp products of various sizes. It is suitable for products of similar sizes and is not limited to products of a single size, so it is more flexible in application.

[0030] In this specific embodiment, Figure 6 As shown, each movable jaw 5 is connected to an elastic member 6, and the elastic member 6 is arranged on the side of the movable jaw 5 away from the corresponding fixed jaw 4. Specifically, the elastic member 6 is a compression spring. When the telescopic cylinder 31 is extended or retracted to make the plug 321 push the movable jaw 5 to move away from the corresponding fixed jaw 4, the elastic member 6 is compressed at the same time. After the telescopic cylinder 31 is reset, the elastic member 6 can elastically drive the movable jaw 5 to move toward the fixed jaw 4; of course, in other embodiments, it can also be a spring or others, and those skilled in the art can design it according to the specific situation.

[0031] When the power is off, the elastic member 6 can still elastically drive the movable jaw 5 to move to keep the product clamped. The use of the elastic member 6 can reduce the processing accuracy and installation accuracy of the device. When the distance between the movable jaw 5 and the fixed jaw 4 changes, the elastic member 6 can also elastically drive the movable jaw 5 to move closer to the fixed jaw 4 to clamp the product 10.

[0032] In this specific embodiment, Figure 6 As shown, the movable clamping jaw 5 is provided with a guide hole 51, and the guide shaft 2 passes through the guide hole 51, so that the movable clamping jaw 5 is slidably arranged on the guide shaft 2, and a graphite copper sleeve 8 is also arranged between the guide hole 51 and the guide shaft 2. The graphite copper sleeve 8 is tubular, and the outer contour of the graphite copper sleeve 8 is consistent with the inner contour of the guide hole 51. The graphite copper sleeve 8 is tightly matched with the guide hole 51 of the movable clamping jaw 5. The graphite sleeve 8 has the characteristics of high hardness, high wear resistance, stable performance and low cost. By sliding the graphite copper sleeve 8 on the outer periphery of the guide shaft 2, the movable clamping jaw 5 can be ensured to slide smoothly along the direction of the guide shaft 2, reducing the wear of the movable clamping jaw 5 during long-term sliding, and extending the service life.

[0033] In this specific embodiment, Figure 1 As shown, it also includes a locking member 7, a mounting hole 41 and a locking hole 42 are provided on the fixed clamping jaw 4, the locking hole 42 is connected to the mounting hole 41, the guide shaft 2 passes through the mounting hole 41, the locking member 7 is inserted into the locking hole 42 and abuts against the guide shaft 2 to fix the fixed clamping jaw 4 on the guide shaft 2, and the locking member 7 withdraws from the locking hole 42 to make the fixed clamping jaw 4 loose from the guide shaft 2. Specifically, the locking hole 42 is provided with an internal thread, and the locking member 7 has an external thread matched with the internal thread of the locking hole 42, and the locking member 7 can be a bolt or a screw.

[0034] Further, if Figure 6 As shown, a mounting groove 43 is also provided around the outer periphery of the mounting hole 41 of the fixed clamping jaw 4 . The mounting groove 43 and the mounting hole 41 are arranged in a concentric circle. The mounting groove 43 is used to install the elastic member 6 .

[0035] In this specific embodiment, Figure 4 As shown, the fixing frame 1 includes a mechanism connecting plate 12, a telescopic cylinder fixing plate 13, a clamping claw plate 11 and a guide shaft fixing member 14. The mechanism connecting plate 12 is used to fix the equidistant positioning and grabbing device on an external device, the telescopic cylinder fixing plate 13 is used to fix the telescopic cylinder 31, the guide shaft fixing member 14 is used to fix the guide shaft 2, and the clamping claw plate 11 is provided with a clamping claw 4 for limiting the position. Specifically, the clamping claw plate 11 is provided with a slot 111 corresponding to each fixed clamping claw 4, and the insertion end of the fixed clamping claw 4 is inserted into the slot 111. The size of the slot 111 along the guide shaft 2 direction is larger than the size of the insertion end of the fixed clamping claw 4. By adjusting the position of the insertion end of the fixed clamping claw 4 in the slot 111, the distance between the fixed clamping claw 4 and the movable clamping claw 5 can be adjusted to improve the applicable range of the clamped product 10.

[0036] In this specific embodiment, Figure 4 As shown, the structure of the guide shaft fixing member 14 is consistent with that of the fixed clamping jaw 4, and is also provided with a mounting hole 41, a locking hole 42 and a mounting groove 43; during installation, one end of the guide shaft 2 is inserted into the mounting hole 41 of the guide shaft fixing member 14, and the other end of the guide shaft 2 is sequentially passed through the movable clamping jaw 5 and the fixed clamping jaw 4, and the remaining movable clamping jaws 5 and the fixed clamping jaws 4 are alternately installed in this installation order until the other end of the guide shaft 2 is finally inserted into the last fixed clamping jaw 4, and then the insertion end of each fixed clamping jaw 4 is correspondingly inserted into each slot 111 of the clamping jaw insert plate 11, and finally a plurality of locking members 7 are screwed on the locking hole 42 of the fixed clamping jaw 4 and the locking hole 42 of the guide shaft fixing member 14, so as to lock the fixed clamping jaw 4 on the guide shaft 2. During disassembly, the locking member 7 is withdrawn in the reverse direction to loosen the fixed clamping jaw 4 from the guide shaft 2.

[0037] In this specific embodiment, Figure 6 As shown, the mounting grooves 43 of all the fixed jaws 4 and the mounting grooves 43 of the guide shaft fixing parts 14 are placed in the same direction, and elastic parts 6 are installed in the mounting grooves 43. After the assembly is completed, the elastic part 6 connected to each movable jaw 5 is installed in the mounting groove 43 of the fixed jaw 4 adjacent to the movable jaw 5, and away from the corresponding fixed jaw 4 of the movable jaw 5.

[0038] In this specific embodiment, Figure 6As shown, there are two guide shafts 2, two guide holes 51 of each movable clamping jaw 5, two mounting holes 41 and mounting grooves 43 of each fixed clamping jaw 4, and two locking holes 42. The two locking holes 42 are respectively arranged on both sides of the fixed clamping jaw 4. The arrangement of two guide shafts 2 makes the sliding of the movable clamping jaw 5 smoother without deflection, and the clamping of the product is more stable. The two mounting grooves 43 are respectively installed with elastic members 6 to increase the elastic driving force.

[0039] In this specific embodiment, Figure 2 As shown, the clamping claw member 32 is connected to a linear slide assembly 9, and the linear slide assembly 9 is arranged on the fixed frame 1. Specifically, the linear slide assembly 9 includes a linear slide 91 and a slider 92, the linear slide 91 is fixed below the mechanism connecting plate 12, the slider 92 is slidably arranged on the linear slide 91, and the slider 92 is connected to the clamping claw member 32, so that the clamping claw member 32 can move more steadily and the movement is more gentle.

[0040] In this specific embodiment, Figure 3 As shown, a shifting piece 33 is fixed to the telescopic end of the telescopic cylinder 31, and a plug hook 331 is formed on the shifting piece 33. A plug hole 322 for inserting the plug hook 331 is provided on the clamping claw shifting piece 32. The plug hole 322 is larger than the plug hook 331. When the telescopic rod 31 is extended or retracted, the plug hook 331 moves in the plug hole 322 and abuts against the inner wall of the plug hole 322 to drive the clamping claw shifting piece 32 to move; when the telescopic rod 31 is reset, the plug hook 331 is loosened from the inner wall of the plug hole 322, and the action on the clamping claw shifting piece 32 is released.

[0041] When the product is placed after being clamped, the working process of the device is as follows:

[0042] The telescopic cylinder 31 extends or retracts to drive the push piece 33 to move, so that the hook 331 of the push piece 33 moves and abuts against the inner wall of the insertion hole 322 of the clamping claw push piece 32, driving the clamping claw push piece 32 to move. The clamping claw push piece 32 drives the slider 92 to move smoothly along the linear slide rail 91, so that the push plug 321 drives the movable clamping claw 5 to move away from the corresponding fixed clamping claw 4, and at the same time compresses the elastic member 6. At this time, the movable clamping claw 5 and the corresponding fixed clamping claw 4 are in an open state to place the product.

[0043] When gripping a product, the device works as follows:

[0044] The telescopic cylinder 31 drives the push piece 33 to reset, and the push piece 33 loosens the inner wall of the insertion hole 322, and the elastic member 6 resets and elastically drives the movable clamping jaw 5 to move toward the corresponding fixed clamping jaw 4 to clamp and fix the product.

[0045] The above description is only a preferred embodiment of the present utility model and is not a limitation on the design of the present case. Any equivalent changes made based on the key design of the present case shall fall within the protection scope of the present case.

Claims

1. An equidistant positioning and grabbing device, characterized in that: It comprises a fixed frame (1), on which a guide shaft (2) and a driving assembly (3) are arranged; A plurality of fixed clamping jaws (4) are fixedly arranged at intervals on the guide shaft (2), and a movable clamping jaw (5) is slidably arranged on the guide shaft (2) corresponding to each fixed clamping jaw; It also includes an elastic member (6), which is used to drive the movable clamping jaw (5) to move toward the corresponding fixed clamping jaw (4) by elastic force; The driving assembly (3) comprises a telescopic cylinder (31) and a clamping jaw moving piece (32), and the clamping jaw moving piece (32) is provided with a moving insert (321) corresponding to each movable clamping jaw (5); the telescopic cylinder (31) is extended or retracted to drive the clamping jaw moving piece (32) to move, so that the moving insert (321) moves the movable clamping jaw (5) away from the corresponding fixed clamping jaw (4).

2. The equidistant positioning and grabbing device according to claim 1, characterized in that: The elastic member (6) is arranged on a side of the movable clamping jaw (5) facing away from the corresponding fixed clamping jaw (4).

3. The equidistant positioning and grabbing device according to claim 1, characterized in that: The movable clamping jaw (5) is provided with a guide hole (51), and the guide shaft (2) passes through the guide hole (51), so that the movable clamping jaw (5) is slidably arranged on the guide shaft (2).

4. An equidistant positioning and grabbing device according to any one of claims 1 to 3, characterized in that: The invention also comprises a locking member (7), wherein the fixed clamping jaw (4) is provided with a mounting hole (41) and a locking hole (42), the locking hole (42) is connected to the mounting hole (41), the guide shaft (2) passes through the mounting hole (41), the locking member (7) is inserted into the locking hole (42) and abuts against the guide shaft (2) to fix the fixed clamping jaw (4) on the guide shaft (2), and the locking member (7) is withdrawn from the locking hole (42) to make the fixed clamping jaw (4) loose from the guide shaft (2).

5. The equidistant positioning and grabbing device according to claim 3, characterized in that: A graphite copper sleeve (8) is also provided between the guide hole (51) and the guide shaft (2); the graphite copper sleeve (8) is tubular, and the outer contour of the graphite copper sleeve (8) is consistent with the inner contour of the guide hole (51).

6. The equidistant positioning and grabbing device according to claim 4, characterized in that: The fixing frame (1) comprises a clamping jaw inserting plate (11), the clamping jaw inserting plate (11) being provided with a slot (111) corresponding to each fixing clamping jaw (4), the insertion end of the fixing clamping jaw (4) being inserted into the slot (111), and the dimension of the slot (111) along the direction of the guide shaft (2) being larger than the dimension of the insertion end of the fixing clamping jaw (4).

7. The equidistant positioning and grabbing device according to claim 4, characterized in that: The number of the guide shafts (2) is two, the number of the guide holes (51) of the movable clamping jaw (5) is correspondingly two, and the number of the mounting holes (41) of the fixed clamping jaw (4) is also correspondingly two.

8. The equidistant positioning and grabbing device according to claim 1, characterized in that: A push piece (33) is fixed to the telescopic end of the telescopic cylinder (31), a plug hook (331) is formed on the push piece (33), and a plug hole (322) for inserting the plug hook (331) is provided on the clamping claw push piece (32), and the size of the plug hole (322) is larger than the size of the plug hook (331).

9. The equidistant positioning and grabbing device according to claim 1, characterized in that: The clamping claw member (32) is connected to a linear slide rail assembly (9), and the linear slide rail assembly (9) is arranged on a fixed frame (1).

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