Plane rocker clamping mechanism

Abstract

The utility model discloses a plane rocker clamping mechanism, which belongs to the technical field of clamping mechanisms and comprises a clamping seat, a limiting clamping groove is arranged on the clamping seat, a locking component is further arranged on the clamping seat, the locking component comprises a pressing rod rotationally connected onto the clamping seat, and a limiting boss corresponding to the limiting clamping groove is arranged on the pressing rod. According to the scheme, the limiting clamping groove can be used for containing a workpiece, the pressing rod is rotationally connected to the clamping base, and the limiting boss on the pressing rod can be close to or away from the position where the limiting clamping groove is located through rotation of the pressing rod, so that the workpiece in the limiting clamping groove is clamped and loosened. A plane rocker mechanism is adopted, and the pressed limit of a clamped piece is set, so that the clamped piece is prevented from being damaged; meanwhile, reverse limiting is arranged, so that work looseness caused by limit reversal is prevented; rapid clamping of the workpiece is achieved by driving the pressing rod to rotate, the production efficiency and the qualified rate are greatly improved, and meanwhile the safety of the production process is guaranteed.

Description

Technical Field

[0001] The utility model relates to a clamping mechanism, more specifically, to a plane rocker clamping mechanism. Background Art

[0002] In industrial manufacturing and production, products of various special shapes or structures often appear due to product performance, structure, or cost requirements. Due to the special nature of the products and processes, these products have certain adverse effects on manufacturing and production, especially for products with single-point fixed production. During the production process, the production process of single-point fixed products usually adopts a bolt locking fixation method. This fixing method requires repeated tightening and loosening of screws to replace the workpiece during the production process, which complicates the clamping process and reduces production efficiency. In addition, the bolt locking torque cannot be accurately controlled during the product loading process. Excessive torque can damage the product or material, while too little torque cannot achieve the purpose of fixing the product, leading to safety hazards in the production process, repeated tightening and fixation, product defects, and other abnormal situations.

[0003] For example: Chinese patent announcement number CN118003027A, announcement date May 10, 2024, the invention name is a clamping mechanism for a seamless steel pipe, the application discloses a clamping mechanism, including a first mounting base, a second mounting base and a first clamping mechanism, the first mounting base is provided with a second mounting base on the upper side, the first mounting base and the side adjacent to the second mounting base are respectively provided with a first clamping mechanism and a second clamping mechanism, the first clamping mechanism and the second clamping mechanism are both composed of a bidirectional clamping motor, a driving gear, a transmission gear, an adjustment frame, an adjustment gear block, a first clamping roller and a second clamping roller. The clamping mechanism for the seamless steel pipe solves the problem that the operator needs to manually rotate the wheel to clamp the seamless steel pipe when the clamping mechanism is in use, resulting in low clamping accuracy. However, this solution has a complex structure, is inconvenient to use, and has low efficiency in clamping the workpiece. Utility Model Content

[0004] The utility model overcomes the problems of complex clamping and low efficiency of existing clamping mechanisms, and provides a planar rocker clamping mechanism. This solution can realize rapid clamping and unloading operations of workpieces, greatly improve production efficiency and qualification rate, and ensure the safety of the production process.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a planar rocker clamping mechanism, comprising a clamping seat, a limiting slot provided on the clamping seat, a locking assembly provided on the clamping seat, the locking assembly comprising a pressure rod rotatably connected to the clamping seat, the pressure rod being provided with a limiting boss corresponding to the limiting slot. In this solution, the limiting slot can be used to place a workpiece, and the pressure rod is rotatably connected to the clamping seat. By rotating the pressure rod, the limiting boss on the pressure rod can approach or move away from the position of the limiting slot, thereby clamping and releasing the workpiece in the limiting slot. By driving the pressure rod to rotate, the workpiece can be quickly clamped, which greatly improves production efficiency and pass rate, while ensuring the safety of the production process.

[0006] Preferably, the locking assembly further comprises a first connecting rod and a second connecting rod, wherein the first connecting rod is rotatably connected to the second connecting rod, the first connecting rod is rotatably connected to the end of the pressure rod away from the limiting protrusion, and the second connecting rod is rotatably connected to the clamping seat. The first connecting rod serves as a driving rod for the pressure rod and cooperates with the second connecting rod to adjust the rotational position of the pressure rod. The pressure rod, the first connecting rod, the second connecting rod, and the clamping seat together constitute a four-bar linkage, ultimately achieving clamping of the workpiece.

[0007] Preferably, the pressure rod is provided with a first limiting groove on a side close to the first connecting rod, and the second connecting rod is provided with a second limiting groove on a side close to the first connecting rod. The first limiting groove can limit the upper limit position of the first connecting rod. When the first connecting rod rotates toward the pressure rod, the first connecting rod will eventually contact the first limiting groove, and the limiting boss of the pressure rod will be in a horizontal downward pressing state. The second limiting groove can limit the lower limit position of the first connecting rod. When the first connecting rod rotates toward the second connecting rod, the first connecting rod will eventually contact the second limiting groove, and the limiting boss of the pressure rod will move away from the limiting slot. The first limiting groove and the second limiting groove can prevent the pressure rod from excessively rotating, thereby avoiding damaging the workpiece or causing indentations on the workpiece.

[0008] Preferably, the first connecting rod is provided with a handle, which can drive the first connecting rod to rotate relative to the pressure rod and the second connecting rod, thereby causing the limiting boss to move away from or closer to the limiting slot, thereby achieving the clamping and loosening of the pressure rod on the workpiece; by adding the handle, the operation of the clamping mechanism is more convenient.

[0009] Preferably, the device further comprises a base, the base comprises a connecting portion, the clamping seat and the connecting portion are fixed as one body, the clamping seat is fixed on the base, and the clamping seat can be arranged on other mechanisms through the base.

[0010] Preferably, the base further comprises a fixing portion, wherein the fixing portion has a width greater than the width of the connecting portion. A larger size of the fixing portion can enhance the structural strength of the base and also improve the overall stability of the base.

[0011] Preferably, the fixing portion is provided with a connecting groove, which enables the fixing portion to be connected to other mechanisms or a motor, so as to realize various displacement requirements such as translation or rotation of the clamping mechanism.

[0012] Preferably, the fixing portion has a gap extending through the bottom of the fixing portion, and the fixing portion has a locking hole located at the gap. The gap in the fixing portion can provide a certain height scalability margin for the connecting slot, allowing the connecting slot to be well connected to other mechanisms. The size of the gap can be changed by installing a connecting bolt in the locking hole, thereby reducing the size of the connecting slot and clamping and fixing other mechanisms.

[0013] Preferably, the transverse dimension of the limiting boss is larger than that of the pressure rod. The limiting boss cooperates with the limiting slot to clamp the workpiece. Increasing the transverse dimension of the limiting boss to a certain extent can increase the clamping area of ​​the limiting boss on the workpiece and improve the clamping degree.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) It adopts a planar rocker mechanism to prevent damage to the clamped parts by setting the compression limit of the clamped parts; it also sets a reverse limit to prevent the limit reversal from causing the workpiece to loosen; (2) It can realize the rapid clamping and unloading operations of the workpiece, greatly improve the production efficiency and qualified rate, and ensure the safety of the production process; (3) It has a simple structure, low production and manufacturing cost, and is easy to implement and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of the clamping mechanism of the utility model when it is in the open state.

[0016] Figure 2 This is an axonometric view of the clamping mechanism of the present invention in an open state.

[0017] Figure 3 This is a front view of the clamping mechanism of the utility model when it is in a clamping state.

[0018] Figure 4 This is an axonometric view of the clamping mechanism of the present invention when it is in a clamping state.

[0019] Figure 5 This is an axonometric view of the utility model when clamping a workpiece.

[0020] Figure 6 This is the main view of the utility model when clamping a workpiece.

[0021] In the figure: 1. Clamping seat, 2. Limiting slot, 3. Pressure rod, 4. Limiting boss, 5. First connecting rod, 6. Second connecting rod, 7. First limiting slot, 8. Second limiting slot, 9. Handle, 10. Base, 10.1. Connecting part, 10.2. Fixing part, 11. Connecting slot, 12. Gap, 13. Locking hole, 14. Workpiece. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1: Figures 1 to 6 The planar rocker clamping mechanism shown includes a clamping seat 1 and a locking assembly. The clamping seat 1 is an L-shaped structure as a whole. A limiting slot 2 is provided on the clamping seat 1, so that the clamping seat 1 is hook-shaped. A locking assembly is arranged on the side of the clamping seat 1. Specifically, the locking assembly includes a pressure rod 3, a first connecting rod 5 and a second connecting rod 6. The pressure rod 3 is rotatably connected to the top position of the clamping seat 1, and one end of the second connecting rod 6 is rotatably connected to the bottom position of the clamping seat 1, and the two ends of the first connecting rod 5 are respectively rotatably connected to the end of the pressure rod 3 away from the clamping seat 1 and the end of the second connecting rod 6 away from the clamping seat 1, so that the clamping seat 1, the pressure rod 3, the first connecting rod 5 and the second connecting rod 6 form a four-bar mechanism. One end of the pressure rod 3 away from the first connecting rod 5 extends to above the limit slot 2 of the clamping seat 1, and a limit boss 4 is provided at this end of the pressure rod 3. The limit boss 4 is provided on the side close to the limit slot 2. By driving the first connecting rod 5, the pressure rod 3 can be driven to rotate around the clamping seat 1, and the limit boss 4 can be made close to or away from the limit slot 2, so that the workpiece 14 placed on the limit slot 2 can be clamped.

[0024] A first limiting groove 7 is provided on the pressure rod 3, and a second limiting groove 8 is provided on the second connecting rod 6. The first limiting groove 7 is provided at one end of the pressure rod 3 close to the first connecting rod 5. The first limiting groove 7 is provided on the pressure rod 3 not only to avoid the relative rotation of the first connecting rod 5 and increase the rotation range of the first connecting rod 5, but also the first limiting groove 7 can abut against the main body of the first connecting rod 5 to limit the first connecting rod 5; similarly, the second limiting groove 8 is provided at one end of the second connecting rod 6 close to the first connecting rod 5. The second limiting groove 8 can avoid the rotation of the first connecting rod 5 relative to the second connecting rod 6, and can also limit the position of the first connecting rod 5.

[0025] Specifically, the side of the clamping seat 1 connected to the locking assembly is a hollow structure to avoid the rotation of the pressure rod 3 and the second connecting rod 6. When the first connecting rod 5 rotates and lifts upward close to the pressure rod 3, it will drive the second connecting rod 6 to rotate upward and the end of the pressure rod 3 where the limiting boss 4 is arranged will swing downward, so that the limiting boss 4 can press the workpiece 14 on the limiting slot 2. Figure 5 or Figure 6 As shown, by designing the groove structure and size of the first limiting groove 7, it is possible to ensure that when the first connecting rod 5 abuts the first limiting groove 7, the limiting boss 4 on the pressure rod 3 just presses the workpiece 14 and achieves an appropriate pressing force, avoiding excessive pressing force on the workpiece 14 to cause an indentation, or too little pressing force to prevent the workpiece 14 from being pressed. When the first connecting rod 5 rotates and moves downward, it drives the second connecting rod 6 to rotate downward, and the end of the pressure rod 3 where the limiting boss 4 is arranged swings upward, so that the limiting boss 4 can release the workpiece 14 on the limiting slot 2, and the workpiece 14 on the limiting slot 2 can be removed.

[0026] Specifically, since the end of the pressure rod 3 provided with the limiting boss 4 can swing upward at a greater angle, while the downward swing angle is less obstructed by the workpiece, the size of the second limiting groove 8 is designed to be larger than that of the first limiting groove 7. In addition, when the first connecting rod 5 rotates upward and abuts against the first limiting groove 7, the hinge point of the first connecting rod 5 and the second connecting rod 6 will be close to the clamping seat 1, and the angle formed by the first connecting rod 5 and the second connecting rod 6 away from the clamping seat 1 is an obtuse angle less than 180°, such as Figure 6 As shown, that is, at this time, the first connecting rod 5, the pressure rod 3, the first limiting groove 7 and the second connecting rod 6 form a stable structure, and the second connecting rod 6 will generate an upward pressing force on the first connecting rod 5 to prevent the lower end hinge point of the first connecting rod 5 from falling downward. At the same time, the first limiting groove 7 will generate a downward pressing force on the first connecting rod 5, and the right end of the pressure rod 3 will tighten the upper end of the first connecting rod 5, thereby forming a stable structure as a whole to ensure that the clamping mechanism clamps the workpiece 14.

[0027] A handle 9 is also arranged on the first connecting rod 5. The handle 9 is arranged in the middle position of the first connecting rod 5 and on the side of the first connecting rod 5 away from the clamping seat 1, so that the operator can better operate the handle 9 to drive the first connecting rod 5. By adding the handle 9, the operation of the clamping mechanism will be more convenient.

[0028] The limiting boss 4 is arranged at one end of the pressure rod 3 close to the limiting slot 2, and the lateral size of the limiting boss 4 is larger than the lateral size of the pressure rod. The limiting boss 4 cooperates with the limiting slot 2 to clamp the workpiece 14. Increasing the lateral size of the limiting boss 4 to a certain extent can increase the clamping area of ​​the limiting boss 4 on the workpiece 14, improve the clamping degree, and prevent the workpiece 14 from loosening during operation.

[0029] The planar rocker clamping mechanism also includes a base 10. The base 10 and the clamping seat 1 are also an integrated structure. The clamping seat 1 is set on the top of the base 10. Through the base 10, the clamping mechanism can be arranged on other mechanisms, such as a motor or a manipulator, so as to realize the various displacement requirements such as translation or rotation of the clamping mechanism, and improve the good adaptability of the clamping mechanism to the working environment.

[0030] Example 2: Figures 1 to 6 The planar rocker clamping mechanism shown includes a clamping seat 1 and a locking assembly. The clamping seat 1 is an L-shaped structure as a whole. A limiting slot 2 is provided on the clamping seat 1, so that the clamping seat 1 is hook-shaped. A locking assembly is arranged on the side of the clamping seat 1. Specifically, the locking assembly includes a pressure rod 3, a first connecting rod 5 and a second connecting rod 6. The pressure rod 3 is rotatably connected to the top position of the clamping seat 1, and one end of the second connecting rod 6 is rotatably connected to the bottom position of the clamping seat 1, and the two ends of the first connecting rod 5 are respectively rotatably connected to the end of the pressure rod 3 away from the clamping seat 1 and the end of the second connecting rod 6 away from the clamping seat 1, so that the clamping seat 1, the pressure rod 3, the first connecting rod 5 and the second connecting rod 6 form a four-bar mechanism. One end of the pressure rod 3 away from the first connecting rod 5 extends to above the limit slot 2 of the clamping seat 1, and a limit boss 4 is provided at this end of the pressure rod 3. The limit boss 4 is provided on the side close to the limit slot 2. By driving the first connecting rod 5, the pressure rod 3 can be driven to rotate around the clamping seat 1, and the limit boss 4 can be made close to or away from the limit slot 2, so that the workpiece 14 placed on the limit slot 2 can be clamped.

[0031] A first limiting groove 7 is provided on the pressure rod 3, and a second limiting groove 8 is provided on the second connecting rod 6. The first limiting groove 7 is provided at one end of the pressure rod 3 close to the first connecting rod 5. The first limiting groove 7 is provided on the pressure rod 3 not only to avoid the relative rotation of the first connecting rod 5 and increase the rotation range of the first connecting rod 5, but also the first limiting groove 7 can abut against the main body of the first connecting rod 5 to limit the first connecting rod 5; similarly, the second limiting groove 8 is provided at one end of the second connecting rod 6 close to the first connecting rod 5. The second limiting groove 8 can avoid the rotation of the first connecting rod 5 relative to the second connecting rod 6, and can also limit the position of the first connecting rod 5.

[0032] Specifically, the side of the clamping seat 1 connected to the locking assembly is a hollow structure to avoid the rotation of the pressure rod 3 and the second connecting rod 6. When the first connecting rod 5 rotates and lifts upward close to the pressure rod 3, it will drive the second connecting rod 6 to rotate upward and the end of the pressure rod 3 where the limiting boss 4 is arranged will swing downward, so that the limiting boss 4 can press the workpiece 14 on the limiting slot 2. Figure 5 or Figure 6As shown, by designing the groove structure and size of the first limiting groove 7, it is possible to ensure that when the first connecting rod 5 abuts the first limiting groove 7, the limiting boss 4 on the pressure rod 3 just presses the workpiece 14 and achieves an appropriate pressing force, avoiding excessive pressing force on the workpiece 14 to cause an indentation, or too little pressing force to prevent the workpiece 14 from being pressed. When the first connecting rod 5 rotates and moves downward, it drives the second connecting rod 6 to rotate downward, and the end of the pressure rod 3 where the limiting boss 4 is arranged swings upward, so that the limiting boss 4 can release the workpiece 14 on the limiting slot 2, and the workpiece 14 on the limiting slot 2 can be removed.

[0033] Specifically, since the end of the pressure rod 3 provided with the limiting boss 4 can swing upward at a greater angle, while the downward swing angle is less obstructed by the workpiece, the size of the second limiting groove 8 is designed to be larger than that of the first limiting groove 7. In addition, when the first connecting rod 5 rotates upward and abuts against the first limiting groove 7, the hinge point of the first connecting rod 5 and the second connecting rod 6 will be close to the clamping seat 1, and the angle formed by the first connecting rod 5 and the second connecting rod 6 away from the clamping seat 1 is an obtuse angle less than 180°, such as Figure 6 As shown, that is, at this time, the first connecting rod 5, the pressure rod 3, the first limiting groove 7 and the second connecting rod 6 form a stable structure, and the second connecting rod 6 will generate an upward pressing force on the first connecting rod 5 to prevent the lower end hinge point of the first connecting rod 5 from falling downward. At the same time, the first limiting groove 7 will generate a downward pressing force on the first connecting rod 5, and the right end of the pressure rod 3 will tighten the upper end of the first connecting rod 5, thereby forming a stable structure as a whole to ensure that the clamping mechanism clamps the workpiece 14.

[0034] A handle 9 is also arranged on the first connecting rod 5. The handle 9 is arranged in the middle position of the first connecting rod 5 and on the side of the first connecting rod 5 away from the clamping seat 1, so that the operator can better operate the handle 9 to drive the first connecting rod 5. By adding the handle 9, the operation of the clamping mechanism will be more convenient.

[0035] The limiting boss 4 is arranged at one end of the pressure rod 3 close to the limiting slot 2, and the lateral size of the limiting boss 4 is larger than the lateral size of the pressure rod. The limiting boss 4 cooperates with the limiting slot 2 to clamp the workpiece 14. Increasing the lateral size of the limiting boss 4 to a certain extent can increase the clamping area of ​​the limiting boss 4 on the workpiece 14, improve the clamping degree, and prevent the workpiece 14 from loosening during operation.

[0036] The planar rocker clamping mechanism also includes a base 10. The base 10 and the clamping seat 1 are also an integrated structure. The clamping seat 1 is set on the top of the base 10. Through the base 10, the clamping mechanism can be arranged on other mechanisms, such as a motor or a manipulator, so as to realize the various displacement requirements such as translation or rotation of the clamping mechanism, and improve the good adaptability of the clamping mechanism to the working environment.

[0037] Specifically, the base 10 includes a connecting portion 10.1 and a fixing portion 10.2. The connecting portion 10.1 is a slender rod-shaped structure as a whole. The upper end of the connecting portion 10.1 is a structure integrated with the clamping seat 1, while the lower part of the connecting portion 10.1 is integrally connected to the fixing portion 10.2. The fixing portion 10.2 is a plate-shaped structure with a wider width. An arc transition is used between the connecting portion 10.1 and the fixing portion 10.2. The larger size of the fixing portion 10.2 can enhance the structural strength of the base 10, while also improving the overall stability of the base 10.

[0038] A connecting groove 11 is provided on the longitudinal side of the fixing portion 10.2 and away from the connecting portion 10.1. The fixing portion 10.2 can be mounted on other mechanisms, such as a motor or a manipulator, through the connecting groove 11. A gap 12 is provided in the axial direction of the connecting portion 11, and the gap 12 runs through the bottom position of the fixing portion 10.2, so that the connecting groove 11 can change its size through the gap 12, so as to better mount the fixing portion 10.2 on other mechanisms and better clamp the fixing portion 10.2 on other mechanisms. Specifically, a locking hole 13 is provided at the bottom of the fixing portion 10.2, that is, the fixing portion 10.2 on both sides of the gap 12 is provided with a locking hole 13. By arranging connecting bolts (not shown in the figure) in the locking holes 13, the size of the gap 12 in the fixing portion 10.2 can be changed, so that the radial size of the connecting groove 11 can be retracted and expanded, facilitating the installation of the fixing portion 10.2 with other mechanisms.

Claims

1. A planar rocker clamping mechanism, characterized in that: It includes a clamping seat, a limiting slot is provided on the clamping seat, a locking assembly is also provided on the clamping seat, and the locking assembly includes a pressure rod rotatably connected to the clamping seat, and the pressure rod is provided with a limiting boss corresponding to the limiting slot.

2. A planar rocker clamping mechanism according to claim 1, characterized in that: The locking assembly also includes a first connecting rod and a second connecting rod, the first connecting rod is rotatably connected to the second connecting rod, the first connecting rod is rotatably connected to the end of the pressure rod away from the limiting protrusion, and the second connecting rod is rotatably connected to the clamping seat.

3. A planar rocker clamping mechanism according to claim 2, characterized in that: A first limiting groove is provided on a side of the pressure rod close to the first connecting rod, and a second limiting groove is provided on a side of the second connecting rod close to the first connecting rod.

4. A planar rocker clamping mechanism according to claim 3, characterized in that: The first connecting rod is provided with a handle.

5. A planar rocker clamping mechanism according to any one of claims 1 to 4, characterized in that: It also includes a base, which includes a connecting portion, and the clamping seat and the connecting portion are fixed as a whole.

6. The planar rocker clamping mechanism according to claim 5, characterized in that: The base further includes a fixing portion, and a width dimension of the fixing portion is greater than a width dimension of the connecting portion.

7. The planar rocker clamping mechanism according to claim 6, characterized in that: The fixing portion is provided with a connecting groove.

8. The planar rocker clamping mechanism according to claim 7, wherein: The fixing portion is provided with a gap, the gap passes through the bottom of the fixing portion, and the fixing portion is provided with a locking hole at the position of the gap.

9. A planar rocker clamping mechanism according to any one of claims 1 to 4, characterized in that: The transverse dimension of the limiting boss is greater than the transverse dimension of the pressing rod.

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