Bearing grabbing clamping jaw
By designing a bearing grab jaw that includes long-arm fixed jaws and movable jaws driven by telescopic cylinders, the problem of instability of clamping multiple stacked bearings and clamping in the prior art is solved, and stable clamping of 200mm stacked bearings and efficient production line use is achieved.
Patent Information
- Application Number
- CN202411870056.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-03-21
AI Technical Summary
Existing bearing gripping jaws cannot clamp multiple stacked bearings, cannot be used in efficient bearing automation production lines, and stable lifting clamping cannot be achieved during the clamping process, which is prone to fall off.
A bearing grab jaw including a fixing plate, a long arm fixed jaw, a movable plate and a long arm movable jaw is designed. The telescopic cylinder drives the long arm movable jaw away from the long arm fixed jaw, and supports and clamps the inner diameter of the bearing to achieve clamping multiple bearings with a stacking height of 200mm.
The stable clamping of multiple stacked bearings is achieved, which solves the problem of drop during clamping and improves the efficiency of use in efficient automated production lines.
Smart Images
Figure CN119660353A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of stacking and clamping, and in particular to a bearing grabbing clamp. Background Art
[0002] Bearings are mainly used to support rotating bodies and reduce frictional resistance during their movement; automated production lines are widely used in manufacturing to improve production efficiency and reduce manual intervention. The production and manufacturing of bearings has been widely completed using automated production lines; the gripper is a mechanical mechanism at the end of the robotic arm used to grip and transport workpieces, most of which are two-finger grippers, and are usually driven by pneumatic or hydraulic power.
[0003] At present, in the automated production line of bearings, a gripper robot arm is often used in conjunction with a conveyor belt to clamp and load bearings. However, the existing robot arm gripper can only clamp a single bearing for transportation and cannot clamp a stack of bearings. It cannot be used in an efficient automated production line of bearings, and the bearings cannot be stably lifted and clamped during the clamping process, and are prone to falling off during the clamping process. Summary of the invention
[0004] In order to solve the problems that the existing bearing grabbing clamp can only clamp a single bearing for transportation, cannot clamp a stack of bearings, cannot be used in an efficient bearing automation production line, and cannot stably lift and clamp the bearing during the clamping process and is prone to falling off during the clamping process, the present invention provides a bearing grabbing clamp to solve the problems raised in the above background technology.
[0005] The technical solution of the present invention is:
[0006] A bearing grabbing clamp comprises a fixed plate, a long-arm fixed clamp, a movable plate and a long-arm movable clamp, wherein the long-arm fixed clamp is fixed to the left end of the fixed plate, a telescopic cylinder is installed at the lower end of the fixed plate, the movable end of the telescopic cylinder is fixed to the movable plate, the telescopic cylinder is used to push the movable plate to move rightward, two long-arm movable clamps are fixed to the left end of the movable plate, and the long-arm fixed clamp and the long-arm movable clamp are used to clamp a plurality of stacked bearings.
[0007] Furthermore, the lower ends of the long arm fixed clamping jaw and the long arm movable clamping jaw are provided with wedge-shaped extension parts, which are used to support the bottom end of the clamping bearing, and the side edges of the long arm fixed clamping jaw and the long arm movable clamping jaw are arranged as arc surfaces.
[0008] Furthermore, a triangular fixing portion is provided at the top end of the long-arm fixing jaw, and the triangular fixing portion is fixedly connected to the fixing plate.
[0009] Furthermore, the telescopic cylinder is a double-bar cylinder.
[0010] Furthermore, the effective clamping distance between the long-arm fixed clamping jaw and the long-arm movable clamping jaw is 200 mm.
[0011] Furthermore, a cylinder air guide pipe is provided at the upper end of the telescopic cylinder, and the cylinder air guide pipe passes through the fixed plate and is connected to the air pump.
[0012] Furthermore, a connecting shaft is provided at the upper end of the fixing plate.
[0013] Furthermore, a guide rail is provided at the lower end of the telescopic cylinder, and a slider of the guide rail is fixedly connected to the movable plate.
[0014] Furthermore, a reinforcing rib is provided at the connection between the long arm movable clamping jaw and the movable plate.
[0015] Furthermore, a plurality of groups of bolt holes are symmetrically provided at the left end of the movable plate, and the long-arm movable clamping claw is detachably fixed on the bolt holes by bolts.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. A bearing grabbing clamp comprises a long-arm fixed clamp, a long-arm movable clamp and a telescopic cylinder. The telescopic cylinder drives the long-arm movable clamp away from the long-arm fixed clamp to support and clamp the inner diameter of the bearing, and can clamp multiple bearings with a stacking height of 200 mm.
[0018] 2. A wedge-shaped extension is provided at the lower end of the long-arm fixed jaw and the long-arm movable jaw. In the process of clamping the bearing, the wedge-shaped extension is inserted into the bottom of the lowest bearing and holds up the lowest bearing during the process of the mechanical arm transferring the bearing. Since the jaws clamp the inner diameter of the bearing, it is only necessary to completely clamp the bearing at the bottom to stably clamp multiple stacked bearings, thereby solving the problem of multiple bearings falling off during clamping. The side edges of the long-arm fixed jaw and the long-arm movable jaw are set as arc surfaces, which further increase the contact area with the bearing and reduce the relative cross-section when the long-arm fixed jaw and the long-arm movable jaw are aggregated. Without reducing the stiffness of the jaws, the long-arm fixed jaw and the long-arm movable jaw can be converged to penetrate into the bearing with a smaller inner diameter for clamping.
[0019] 3. A plurality of groups of bolt holes for fixing the long-arm movable clamping claws are symmetrically provided at the left end of the movable plate. The long-arm movable clamping claws are respectively installed in the bolt holes with larger spacing to increase the distance between the two long-arm movable clamping claws, thereby achieving more stable clamping of bearings with larger inner diameters. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 The structure of the first embodiment of the bearing grabbing clamp is shown in FIG. Figure I ;
[0021] Figure 2The structure of the first embodiment of the bearing grabbing clamp is shown in FIG. Figure II ;
[0022] Figure 3 It is a front view of the first embodiment of the bearing grabbing clamp;
[0023] Figure 4 This is a structural schematic diagram of the bearing gripping claw in the gripping state;
[0024] Figure 5 This is a structural schematic diagram of the second embodiment of the bearing grabbing clamp, in which the long-arm movable clamp is installed in the first position;
[0025] Figure 6 This is a structural schematic diagram of the second embodiment of the bearing grabbing clamp, in which the long-arm movable clamp is installed in the second position;
[0026] Figure 7 This is an exploded view of the second embodiment of the bearing grabbing clamp.
[0027] In the figure: 1. fixed plate; 2. long arm fixed clamp; 3. telescopic cylinder; 4. movable plate; 5. long arm movable clamp; 6. wedge-shaped extension part; 7. triangular fixing part; 8. cylinder air guide pipe; 9. reinforcing rib; 11. multiple bolt holes; 12. connecting shaft. DETAILED DESCRIPTION
[0028] Specific implementation method 1: See Figure 1-4 As shown, a bearing grabbing clamp is provided. This embodiment includes a fixed plate 1, a long-arm fixed clamp 2, a movable plate 4 and a long-arm movable clamp 5. The long-arm fixed clamp 2 is fixed to the left end of the fixed plate 1, a telescopic cylinder 3 is installed at the lower end of the fixed plate 1, and the movable end of the telescopic cylinder 3 is fixed to the movable plate 4. The telescopic cylinder 3 is used to push the movable plate 4 to move to the right. Two long-arm movable clamps 5 are fixed to the left end of the movable plate 4. The long-arm fixed clamp 2 and the long-arm movable clamp 5 are used to clamp multiple stacked bearings.
[0029] Specific implementation method 2: See Figure 1-4 As shown, the lower ends of the long arm fixed jaw 2 and the long arm movable jaw 5 of this embodiment are provided with a wedge-shaped extension portion 6, the wedge-shaped extension portion 6 is used to support the bottom end of the clamping bearing, and the side edges of the long arm fixed jaw 2 and the long arm movable jaw 5 are set as arc surfaces.
[0030] Specific implementation method three: See Figure 1-4 As shown, the effective clamping distance between the long arm fixed clamping jaw 2 and the long arm movable clamping jaw 5 of this embodiment is 200 mm.
[0031] Furthermore, the fixed plate 1 is a rectangular support plate, which is fixedly connected to the movable end of the robotic arm. The lower end of the fixed plate 1 is fixedly connected to the cylinder body of the telescopic cylinder 3 by bolts. The movable plate 4 is an L-shaped steel plate, and its vertical end plate surface is fixedly connected to the movable end of the telescopic cylinder 3 by bolts. The long arm fixed jaw 2 is fixed to the left end of the fixed plate 1 by bolts, and the long arm movable jaw 5 is fixed to the left end of the movable plate 4 by welding. The total length of the long arm fixed jaw 2 is 285 mm, and the total length of the long arm movable jaw 5 is 235 mm. The long arm fixed jaw 2 and the long arm movable jaw 5 can effectively clamp several bearings with a stacking height of 200 mm. The lower ends of the long arm fixed jaw 2 and the long arm movable jaw 5 are both provided with a wedge-shaped extension 6. The three sides of the bottom surface of the long arm fixed jaw 2 away from the long arm movable jaw 5 are provided with a wedge-shaped extension 6. The two sides of the bottom surface of the two long arm movable jaws 5 away from the long arm fixed jaw 2 are provided with a wedge-shaped extension 6. This arrangement can achieve that after closing, the long arm fixed jaw 2 and the long arm movable jaw 5 are as close as possible to prevent the three wedge-shaped extensions 6 from interfering with each other after closing. The wedge-shaped extension 6 can be inserted into the bottom surface of the bearing at the lowest end when clamping, and play a role in pushing the bearing at the lowest end.
[0032] During the clamping operation in use, the mechanical arm drives the bearing clamping jaws to insert the long arm fixed jaw 2 and the long arm movable jaw 5 into the inner diameters of multiple bearings, and the telescopic cylinder 3 extends through the movable plate 4 to drive the long arm movable jaw 5 to slide away from the long arm fixed jaw 2, and the wedge-shaped extension 6 of the long arm fixed jaw 2 and the long arm movable jaw 5 is inserted into the bottom surface of the bearing at the lower end, and then the long arm fixed jaw 2 and the long arm movable jaw 5 completely resist the inner diameter of the bearing to complete the clamping of the bearing; when placing the bearing, the telescopic cylinder 3 shortens and drives the long arm movable jaw 5 to slide toward the long arm fixed jaw 2 through the movable plate 4, and the wedge-shaped extension 6 is pulled out from the bottom of the bearing and retracted into the inner diameter of the bearing, and the mechanical arm drives the long arm fixed jaw 2 and the long arm movable jaw 5 to be pulled vertically upward from the stacked bearings to complete the placement of the bearing.
[0033] Specific implementation method four: see Figure 1-4 As shown, a triangular fixing portion 7 is provided at the top end of the long-arm fixing jaw 2 of this embodiment, and the triangular fixing portion 7 is fixedly connected to the fixing plate 1 .
[0034] Specific implementation method five: see Figure 1-4 As shown, a reinforcing rib 9 is provided at the connection between the long arm movable clamping jaw 5 and the movable plate 4 in this embodiment.
[0035] Furthermore, since the long-arm fixed jaw 2 and the long-arm movable jaw 5 are long jaws, the force arm is too long during clamping. In order to prevent the fixing part from falling off due to excessive torque during clamping, a triangular fixing part 7 is provided at the top of the long-arm fixed jaw 2, and the triangular fixing part 7 is fixedly connected to the fixed plate 1 by bolts; a reinforcing rib 9 is provided at the connection between the long-arm movable jaw 5 and the movable plate 4, and the reinforcing rib 9 is fixed by welding, so as to improve the clamping strength of the long-arm fixed jaw 2 and the long-arm movable jaw 5.
[0036] Specific implementation method six: see Figure 1-4 As shown, the telescopic cylinder 3 in this embodiment is a double-bar cylinder.
[0037] Specific implementation method seven: See Figure 1-4 As shown, a guide rail is provided at the lower end of the telescopic cylinder 3 in this embodiment, and a slider of the guide rail is fixedly connected to the movable plate 4.
[0038] Specific implementation method eight: See Figure 1-4 As shown, a cylinder air guide pipe 8 is provided at the upper end of the telescopic cylinder 3 of this embodiment, and the cylinder air guide pipe 8 passes through the fixed plate 1 and is connected to the air pump.
[0039] Specific implementation method nine: See Figure 1-4 As shown, a connecting shaft 12 is provided at the upper end of the fixing plate 1 of this embodiment.
[0040] Furthermore, in order to realize that the telescopic cylinder 3 can push the movable plate 4 to slide parallel to the fixed plate 1, the telescopic cylinder 3 adopts a parallel double-bar cylinder, and the two movable ends of the double-bar cylinder are fixedly connected to the movable plate 4 by bolts to limit the freedom of the movable plate 4. In order to further enable the movable plate 4 to slide parallel to the fixed plate 1, the lower end of the telescopic cylinder 3 is provided with a guide rail that guides the movable plate 4, and the movable plate 4 is fixed on the guide rail slider.
[0041] Specific implementation method ten: See Figure 5-7 As shown, the left end of the movable plate 4 of this embodiment is symmetrically provided with a plurality of bolt holes 11 , and the long-arm movable clamping jaw 5 is detachably fixed on the bolt holes 11 by bolts.
[0042] Furthermore, this embodiment is the second example. Since the bearing grabbing clamp is provided with a long-arm fixed clamp 2 and two long-arm movable clamps 5, it can achieve a three-point support effect when clamping a bearing of a corresponding inner diameter. However, if the inner diameter of the clamped bearing does not match the width set by the two long-arm movable clamps 5, it may result in failure to penetrate into the inner diameter of the bearing or failure to achieve three-point support of the inner diameter with equal spacing and equal arc. In order to enable the bearing grabbing clamp to clamp bearings of different inner diameter specifications, a plurality of groups of symmetrical bolt holes 11 are symmetrically provided at the left end of the movable plate 4 for fixing the long-arm movable clamp 5. The device takes two groups of four bolt holes as an example. A longitudinal groove of the same width as the long-arm movable clamp 5 is vertically provided at the bolt hole 11. The groove allows the long-arm movable clamp 5 to be embedded therein, and is used to limit the entry of the long-arm movable clamp 5 and prevent the long-arm movable clamp 5 from rotating around the bolt hole 11. During use, when a bearing with a smaller inner diameter needs to be clamped, the two long-arm movable jaws 5 are symmetrically fixed in two adjacent bolt holes 11; when a bearing with a larger inner diameter needs to be clamped, the two long-arm movable jaws 5 are symmetrically fixed in two bolt holes 11 that are farthest apart.
[0043] Furthermore, the bearing grabbing clamp can stably hold up the bearing at the bottom during the process of the mechanical arm transferring the bearing. Since the clamp clamps the inner diameter of the bearing, it only needs to completely clamp the bearing at the bottom to stably clamp multiple stacked bearings, solving the problem of multiple bearings falling when clamping. In the second embodiment, multiple bolt holes 11 are provided to adjust the fixed width of the long arm movable clamp 5, so that bearings of various sizes can be clamped.
Claims
1. A bearing grabbing clamp, characterized in that: The invention comprises a fixed plate (1), a long-arm fixed clamping jaw (2), a movable plate (4) and a long-arm movable clamping jaw (5); the left end of the fixed plate (1) is fixed with the long-arm fixed clamping jaw (2); the lower end of the fixed plate (1) is provided with a telescopic cylinder (3); the movable end of the telescopic cylinder (3) is fixed with the movable plate (4); the telescopic cylinder (3) is used to push the movable plate (4) to move rightward; the left end of the movable plate (4) is fixed with two long-arm movable clamping jaws (5); the long-arm fixed clamping jaw (2) and the long-arm movable clamping jaw (5) are used to clamp a plurality of stacked bearings.
2. The bearing grabbing clamp according to claim 1, characterized in that: The lower ends of the long arm fixed clamping jaw (2) and the long arm movable clamping jaw (5) are provided with a wedge-shaped extension portion (6), the wedge-shaped extension portion (6) is used to support the bottom end of the clamping bearing, and the side edges of the long arm fixed clamping jaw (2) and the long arm movable clamping jaw (5) are arranged as arc surfaces.
3. The bearing grabbing clamp according to claim 1, characterized in that: A triangular fixing portion (7) is provided at the top end of the long-arm fixing clamp (2), and the triangular fixing portion (7) is fixedly connected to the fixing plate (1).
4. The bearing grabbing clamp according to claim 1, characterized in that: The telescopic cylinder (3) is a double-bar cylinder.
5. The bearing grabbing clamp according to claim 1, characterized in that: The effective clamping distance between the long arm fixed clamping jaw (2) and the long arm movable clamping jaw (5) is 200 mm.
6. The bearing grabbing clamp according to claim 1, characterized in that: The upper end of the telescopic cylinder (3) is provided with a cylinder air guide pipe (8), and the cylinder air guide pipe (8) passes through the fixed plate (1) and is connected to the air pump.
7. The bearing grabbing clamp according to claim 1, characterized in that: A connecting shaft (12) is provided at the upper end of the fixing plate (1).
8. The bearing grabbing clamp according to claim 1, characterized in that: A guide rail is provided at the lower end of the telescopic cylinder (3), and a slider of the guide rail is fixedly connected to the movable plate (4).
9. The bearing grabbing clamp according to claim 1, characterized in that: A reinforcing rib (9) is provided at the connection between the long arm movable clamping claw (5) and the movable plate (4).
10. The bearing grabbing clamp according to claim 1, characterized in that: The left end of the movable plate (4) is symmetrically provided with a plurality of bolt holes (11), and the long arm movable clamping claw (5) is detachably fixed on the bolt hole (11) by means of bolts.