Gear rack clamping jaw mechanism

Abstract

The utility model discloses a gear rack clamping jaw mechanism which is characterized in that two guide rails are arranged on each of the front side and the rear side of the upper surface of a fixed plate, and clamping assemblies are arranged on the guide rails and are symmetrically arranged; the clamping assembly comprises a guide plate arranged on the supporting arm, a first air cylinder with the piston end facing the outer side is arranged on the supporting arm, a first connecting rod is arranged at the end, extending out of the guide plate, of the piston end of the first air cylinder, a second connecting rod is hinged to the free end of the first connecting rod, and a clamping arm is hinged to the second connecting rod. A clamping end for clamping a product is arranged at the free end of the clamping arm; a cover plate for limiting the clamping arm to move up and down is arranged on the guide plate; the opposite side faces of the guide plates are each provided with a guide assembly for guiding and positioning the long workpiece. The clamp has the advantages that a workpiece with a certain length and a product can be stably clamped, a plurality of clamps do not need to be matched, the distance between the clamps does not need to be adjusted, and time and trouble are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamp equipment, in particular to a gear rack clamp mechanism. Background Art

[0002] The linear rail module includes long rails, long screws and other components. Clamps are often used in production. After alignment and clamping, cutting, trimming, assembly and other processes are carried out.

[0003] Existing clamps, such as manipulators and electric clamps, can simply clamp workpieces. The outer surface of the object they can clamp is usually relatively small, and they can only clamp shorter workpieces, such as end covers, nuts, bearings, etc. However, to clamp long screws, guide rail bases and other workpieces, multiple clamps need to be combined together for clamping, and the distance between these clamps needs to be moved according to the actual length of the workpiece. Therefore, existing clamps are not practical for processing longer workpieces. Utility Model Content

[0004] The purpose of the utility model is to provide a device capable of clamping long workpieces such as long screws, guide rail bases, etc. without the need for multiple clamps to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A gear rack clamp mechanism, comprising a fixed plate, two mutually parallel guide rails are installed on the front and rear sides of the fixed plate, two sliders are slidably matched on the guide rails, namely a left slider and a right slider, a left slide table is fixed between the two left sliders, and a right slide table is fixed between the two right sliders, support arms are installed on the left slider and the right slider, and clamping components are arranged on the support arms, and the clamping components are symmetrically arranged;

[0007] The cam is secured to the bottom of the support frame and is designed to be easily moved when the cam is in a state of being moved out of the way of the cylinder. The cam is secured to the bottom of the support frame and is easily moved when the cam is in a state of being moved out of the way of the cylinder.

[0008] The opposite sides of the guide plate are provided with guide components for guiding and positioning the long workpiece, and the fixed plate is provided with a driving mechanism for driving the two left sliders and the right sliders to move linearly in opposite directions.

[0009] Furthermore, the guide assembly is composed of a bearing frame connected between the support arm and the cover plate, and a plurality of bearing assemblies located in the bearing frame. The bearing frame is U-shaped with openings facing each other. The bearing assembly includes a shaft rod fixed at both ends in the bearing frame and a plurality of bearings sleeved on the shaft rod. The bearing part is located outside the bearing frame, i.e., at the U-shaped opening.

[0010] Furthermore, the driving mechanism includes a side plate fixed to one end of the fixed plate, the lower end of the side plate is located below the fixed plate, a second cylinder is installed on the outer side of the side plate and below the fixed plate, a connecting port is opened at one end of the fixed plate close to the side plate, a gear is rotated at the center position on the fixed plate, the guide rail is located on both sides of the gear, a left rack meshing with the gear is provided under the left slide and on one side of the gear, a right rack meshing with the gear is provided under the right slide and on the other side of the gear, a connecting block is provided at the piston end of the second cylinder, the connecting block extends out of the connecting port and is fixedly connected to the left slide, and one end of the connecting block extending out of the connecting port is mainly connected to the most adjacent slide.

[0011] Furthermore, reinforcement plates are installed at the front and rear sides of the lower side of the fixing plate, and one end of the reinforcement plate is connected to the side plate to strengthen the overall structure.

[0012] Furthermore, a gear fixing cover for protecting and installing the gear is provided on the fixing plate and directly above the gear, and the left rack and the right rack are located in the gear fixing cover to limit their positions so that they can only move between the guide rails.

[0013] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0014] 1. The utility model can clamp workpieces of different sizes within the maximum range by arranging gears, racks, slide rails, support arms and other structures to cooperate with each other, and is more practical. It is driven by a cylinder and the clamping is more stable.

[0015] 2. The guide assembly can assist in positioning and guiding long workpieces, so that workpieces and products of a certain length can be stably clamped without the need for multiple clamps to cooperate or adjust the distance between multiple clamps, saving time and trouble. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of a gear rack clamp mechanism of the utility model;

[0018] Figure 2 It is a cross-sectional view of a gear rack clamp mechanism without a clamping arm of the utility model;

[0019] Figure 3 It is a bottom three-dimensional cross-sectional view of a gear rack clamp mechanism of the utility model.

[0020] Figure 4 It is a front cross-sectional view of a gear rack clamp mechanism of the utility model.

[0021] In the figure: 1, fixed plate, 2, guide rail, 3, left slider, 4, right slider, 5, left slide, 6, right slide, 7, support arm, 9, clamping assembly, 10, guide plate, 11, first cylinder, 12, first connecting rod, 13, second connecting rod, 14, clamping arm, 15, clamping end, 16, cover plate, 17, guide assembly, 18, bearing frame, 19, bearing, 20, side plate, 21, second cylinder, 22, connecting port, 23, gear, 24, left rack, 25, right rack, 26, connecting block, 27, reinforcement plate, 28, gear fixing cover. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] A gear rack clamp mechanism, two mutually parallel guide rails 2 are installed on the front and rear sides of the fixed plate 1, and the guide rails 2 are cooperated with two sliders, namely a left slider 3 and a right slider 4, a left slide 5 is fixed between the two left sliders 3, and a right slide 6 is fixed between the two right sliders 4, and support arms 7 are installed on the left slide 5 and the right slide 6, and clamping components 9 are provided on the support arms 7, and the clamping components 9 are symmetrically arranged to achieve the function of clamping products;

[0025] Each clamping assembly 9 includes a guide plate 10 fixed on the support arm 7, one end of the guide plate 10 is bent close to the other clamping assembly 9, that is, bent inward, a first cylinder 11 with a piston end facing outward is provided on the support arm 7, the first cylinder 11 is installed at the non-bent end of the guide plate 10, the end of the piston end of the first cylinder 11 extending out of the guide plate 10 is provided with a first connecting rod 12, the guide plate 10 is provided with a movable hole for the piston end of the first cylinder 11 to enter and exit, and the free end of the first connecting rod 12 is hinged to a second connecting rod 1 3. The second connecting rod 13 is hinged with a clamping arm 14. The telescopic movement of the piston end of the first cylinder 11 drives the end of the support arm 7 connected thereto to move closer to or farther from each other, and then the other ends move closer to or farther from each other. The clamping arm 14 is adapted to the shape of the guide plate 10, and the other end is also bent. The middle end of the clamping arm 14 is rotatably connected to the support arm 7. The free end of the clamping arm 14 is provided with a clamping end 15 for clamping the product, and the clamping end 15 is a jaw iron. A cover plate 16 is provided on the guide plate 10 to limit the up and down movement of the clamping arm 14;

[0026] The opposite sides of the guide plate 10 are provided with guide components 17 for guiding the clamped workpiece or product. The fixed plate 1 is provided with a driving mechanism for driving the two left sliders 3 and the right slider 4 to move linearly in opposite directions. The driving mechanism drives the left slider 3 and the right slider 4 to move away from or towards each other, and then drives the support arms 7 to move away from or towards each other. The distance between them can adapt to workpieces or products of different widths.

[0027] As an embodiment of the product of the utility model, in addition to the above structure, the guide assembly 17 is composed of a bearing frame 18 connected between the support arm 7 and the cover plate 16, and a plurality of bearing assemblies located in the bearing frame 18. The bearing frame 18 is U-shaped with openings facing each other. The bearing assembly includes a shaft rod fixed at both ends in the bearing frame 18 and a plurality of bearings 19 sleeved on the shaft rod. The bearing part is located outside the bearing frame 18, i.e., at the U-shaped opening. The guide assembly 17 can be provided with bearings 19 of different sizes and quantities according to practical needs.

[0028] As an embodiment of the product of the utility model, in addition to the above structure, the driving mechanism includes a side plate 20 fixed at one end of the fixed plate 1, the lower end of the side plate 20 is located below the fixed plate 1, and a second cylinder 21 is installed on the outer side of the side plate 20 and lower than the fixed plate 1. A connecting port 22 is opened at one end of the fixed plate 1 close to the side plate 20, and a gear 23 is rotated at the center position on the fixed plate 1, and the guide rail 2 is located on both sides of the gear 23. A left rack 24 meshing with the gear 23 is provided below the left slide 5 and on one side of the gear 23, and a right rack 25 meshing with the gear 23 is provided below the right slide 6 and on the other side of the gear 23. A connecting block 26 is provided at the piston end of the second cylinder 21, and the connecting block 26 extends out of the connecting port 22 and is fixedly connected to the left slide 6. One end of the connecting block 26 extending out of the connecting port 22 is mainly connected to the most adjacent slide.

[0029] Reinforcement plates 27 are installed on the front and rear sides of the lower side of the fixed plate 1, and one end of the reinforcement plate 27 is connected to the side plate 20 to strengthen the overall structure. A gear fixing cover 28 for protecting and installing the gear 23 is provided on the fixed plate 1 and directly above the gear 23. The left rack 24 and the right rack 25 are located in the gear 23 fixing cover to limit their positions so that they can only move between the guide rails 2.

[0030] When the utility model product is implemented:

[0031] The utility model product is installed on the workstation that needs to be clamped, and the second cylinder is placed on the gear cover plate. The second cylinder is started to drive the left slide to move, and the left slide drives the left rack to move, thereby driving the meshing gear to rotate, and the gear drives the right rack on the other side to move, and finally the left slide and the right slide are moved away from or close to each other, and the middle position can adapt to workpieces of different sizes. Then, when the first cylinder is started, the piston ends are extended outward, driving the clamping ends to move close to each other and thus clamp the workpiece;

[0032] In summary, the utility model product can clamp workpieces of different sizes within the maximum range, is more practical, and is driven by a cylinder, so the clamping is more stable. The set guide component can assist in positioning and guiding the long workpiece so that it can be clamped stably.

[0033] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A gear rack clamp mechanism, characterized in that: There is a fixed plate, two guide rails are arranged on the front and rear sides of the fixed plate, and two sliders are arranged on the guide rails, namely a left slider and a right slider, a left slide table is arranged between the two left sliders, and a right slide table is arranged between the two right sliders, support arms are arranged on the left slider and the right slider, and clamping components are arranged on the support arms, and the clamping components are symmetrically arranged; The clamping assembly includes a guide plate provided on the support arm, one end of the guide plate is bent and arranged close to the direction of another clamping assembly, a first cylinder with a piston end facing outward is provided on the support arm, the first cylinder is located at the non-bent end of the guide plate, a first connecting rod is provided at one end of the piston end of the first cylinder extending out of the guide plate, a second connecting rod is hinged at the free end of the first connecting rod, a clamping arm is hinged at the second connecting rod, the clamping arm is adapted to the shape of the guide plate, the middle end of the clamping arm is rotatably connected to the support arm, a clamping end for clamping a product is provided at the free end of the clamping arm, and a cover plate for limiting the up and down movement of the clamping arm is provided on the guide plate; The opposite sides of the guide plate are provided with guide components for guiding and positioning the long workpiece, and the fixed plate is provided with a driving mechanism for driving the two left sliders and the right sliders to move linearly in opposite directions.

2. A gear rack clamp mechanism according to claim 1, characterized in that: The guide assembly consists of a bearing frame connected between the support arm and the cover plate, and a plurality of bearing assemblies located in the bearing frame. The bearing assembly includes a shaft with both ends fixed in the bearing frame and a plurality of bearings sleeved on the shaft. The bearing part is located outside the bearing frame.

3. A rack and pinion clamp mechanism according to any one of claims 1 to 2, characterized in that: The driving mechanism includes a side plate provided at one end of the fixed plate, a second cylinder is provided on the outer side of the side plate and lower than the fixed plate, a connecting port is opened on the fixed plate, a gear is rotated at the center position on the fixed plate, the guide rails are located on both sides of the gear, a left rack meshing with the gear is provided under the left slide and on one side of the gear, a right rack meshing with the gear is provided under the right slide and on the other side of the gear, a connecting block is provided at the piston end of the second cylinder, and the connecting block extends out of the connecting port and is fixedly connected to the left slide.

4. A gear rack clamp mechanism according to claim 3, characterized in that: Reinforcement plates are provided at the front and rear sides of the lower side of the fixing plate, and one end of the reinforcement plate is connected to the side plate.

5. The gear rack clamp mechanism according to claim 3, characterized in that: A gear fixing cover is provided on the fixing plate and directly above the gear, and the left rack and the right rack are located in the gear fixing cover.

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