Up-and-down floating swing arm and working method

Abstract

The present application relates to a kind of up and down floating swing arm and working method, belong to polishing equipment field.The present application includes swing arm base, it is characterized in that:swing arm mechanism is further included with abrasive belt contact, support the workpiece in the polishing process, and when workpiece and the abrasive belt outside swing arm mechanism contact, support force is applied to swing arm mechanism by floating mechanism, the floating mechanism and swing arm mechanism are all installed on swing arm base, and floating mechanism cooperates with swing arm mechanism, the swing arm mechanism includes swing arm main body, swing arm pivot, swing arm limit seat, support shaft and support wheel, the swing arm main body is installed on swing arm base by swing arm pivot, the swing arm limit seat is installed at one end of swing arm main body, the support wheel is installed at the other end of swing arm main body by support shaft.

Description

Technical Field

[0001] This invention relates to a vertically floating swing arm and its working method, belonging to the field of grinding equipment. Background Technology

[0002] After the workpiece is processed, it needs to be held by a robot and placed on a belt sander for grinding. The support wheel installed on the belt sander can be used to tighten the sanding belt, and at the same time, it can provide support force when the workpiece comes into contact with the sanding belt on the outside of the support wheel during the grinding process. Currently, the support wheel can only float in one direction. In view of this, a constant force unidirectional adjustment floating unit and its working method are disclosed in the patent document with application number 202311175141.2. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings in the prior art and to provide a structurally reasonable up-and-down floating swing arm and its working method.

[0004] The technical solution adopted by the present invention to solve the above problems is: the upper and lower floating swing arm includes a swing arm base, characterized in that: it also includes a swing arm mechanism that contacts the sanding belt and supports the workpiece during the grinding process, and a floating mechanism that applies a supporting force to the swing arm mechanism when the workpiece contacts the sanding belt outside the swing arm mechanism. The floating mechanism and the swing arm mechanism are both installed on the swing arm base, and the floating mechanism cooperates with the swing arm mechanism.

[0005] Furthermore, the swing arm mechanism includes a swing arm body, a swing arm pivot, a swing arm limiting seat, a support shaft, and a support wheel. The swing arm body is mounted on the swing arm base via the swing arm pivot, the swing arm limiting seat is mounted at one end of the swing arm body, and the support wheel is mounted at the other end of the swing arm body via the support shaft.

[0006] Furthermore, the floating mechanism includes a floating top rod and a floating limit seat. The floating top rod is mounted on the swing arm base, and the floating limit seat is mounted on one end of the floating top rod and cooperates with the swing arm limit seat. The other end of the floating top rod cooperates with the force application mechanism.

[0007] Furthermore, a floating limit wheel is installed on the floating limit seat, and a swing arm limit groove is provided on the swing arm limit seat, with the floating limit wheel located within the swing arm limit groove.

[0008] Furthermore, the force-applying mechanism includes a floating push rod, a floating shaft, and a floating roller. The floating push rod is mounted on the swing arm base via the floating shaft, and the floating roller is mounted on the lower end of the floating push rod, with the floating roller engaging with the other end of the floating push rod.

[0009] Furthermore, the upper end of the floating push rod contacts the piston rod of the floating cylinder, and the cylinder barrel of the floating cylinder is mounted on the rocker arm base.

[0010] Furthermore, two guide wheels are installed on the swing arm base, and the support wheel is located between the two guide wheels.

[0011] Furthermore, the swing arm base is mounted on the belt sander.

[0012] Furthermore, the sanding belt passes around the support wheel and two guide wheels.

[0013] Furthermore, when the workpiece contacts the lower part of the sanding belt on the outside of the support wheel, the main body of the swing arm swings upward; when the workpiece contacts the upper part of the sanding belt on the outside of the support wheel, the main body of the swing arm swings downward.

[0014] Furthermore, another technical objective of the present invention is to provide a method for operating a vertically floating swing arm.

[0015] The above-mentioned technical objective of the present invention is achieved through the following technical solution.

[0016] A method for operating a vertically floating swing arm is characterized by the following: when the workpiece contacts the lower part of the sanding belt on the outer side of the support wheel, the workpiece pushes the support wheel upward, causing the main body of the swing arm to swing along the swing arm pivot. The swing arm limit seat pushes the floating limit seat and the floating top rod backward. The floating top rod pushes the lower end of the floating push rod to swing along the floating pivot. In this state, the upper end of the floating push rod is pushed to swing along the floating pivot by the floating cylinder, thereby achieving a state of force balance.

[0017] When the workpiece contacts the upper part of the outer sand belt of the support wheel, the workpiece pushes the support wheel down, causing the main body of the swing arm to swing along the swing arm axis. The swing arm limit seat pushes the floating limit seat and the floating top rod backward. The floating top rod pushes the lower end of the floating push rod to swing along the floating axis. In this state, the upper end of the floating push rod is pushed to swing along the floating axis by the floating cylinder, thereby achieving a state of force balance.

[0018] Furthermore, in the initial state, the support wheel tightens the sand belt, and the main body of the swing arm is in a horizontal state under the action of the floating cylinder.

[0019] Compared with the prior art, the present invention has the following advantages: When the robot holds the workpiece for grinding, the workpiece can contact the upper or lower part of the sanding belt on the outside of the support wheel, so that the floating arm can swing up and down during the working process, so as to achieve grinding of the workpiece at multiple angles. During the swinging process, the floating cylinder can push the floating push rod, which in turn pushes the floating top rod to achieve force balance. Attached Figure Description

[0020] Figure 1 This is a cross-sectional structural diagram of the vertical floating swing arm (in the initial state) according to an embodiment of the present invention.

[0021] Figure 2 This is a cross-sectional structural diagram of the vertically floating swing arm (in the upward swing state) according to an embodiment of the present invention.

[0022] Figure 3 This is a cross-sectional structural diagram of the vertically floating swing arm (in the downward swinging state) according to an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the usage state of the upper and lower floating swing arm according to an embodiment of the present invention.

[0024] Figure 5 yes Figure 4 A magnified structural diagram of part A in the diagram.

[0025] Figure 6 This is a schematic diagram of the usage state of the upper and lower floating swing arm according to an embodiment of the present invention.

[0026] In the diagram: 1. Swing arm base; 2. Floating mechanism; 3. Swing arm mechanism; 4. Sanding belt.

[0027] Guide wheel 11

[0028] Floating cylinder 21, floating push rod 22, floating shaft 23, floating roller 24, floating top rod 25, floating limit seat 26, floating limit wheel 27.

[0029] The components include: swing arm body 31, swing arm pivot 32, swing arm limit seat 33, swing arm limit groove 34, support shaft 35, and support wheel 36. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0031] Example

[0032] See Figures 1 to 6 As shown in the accompanying drawings, the structures, proportions, sizes, etc., depicted are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness or purpose of the invention, should still fall within the scope of the disclosed technical content. Furthermore, the use of terms such as "upper," "lower," "left," "right," "middle," and "one" in this specification is merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0033] The upper and lower floating swing arm in this embodiment includes a swing arm base 1, a swing arm mechanism 3 that contacts the sanding belt 4 and supports the workpiece during the grinding process, and a floating mechanism 2 that applies a supporting force to the swing arm mechanism 3 when the workpiece contacts the sanding belt 4 on the outside of the swing arm mechanism 3 during the grinding process. Both the floating mechanism 2 and the swing arm mechanism 3 are mounted on the swing arm base 1, and the floating mechanism 2 cooperates with the swing arm mechanism 3.

[0034] The swing arm mechanism 3 in this embodiment includes a swing arm body 31, a swing arm pivot 32, a swing arm limiting seat 33, a support shaft 35, and a support wheel 36. The swing arm body 31 is mounted on the swing arm base 1 via the swing arm pivot 32, the swing arm limiting seat 33 is mounted on one end of the swing arm body 31, and the support wheel 36 is mounted on the other end of the swing arm body 31 via the support shaft 35.

[0035] The floating mechanism 2 in this embodiment includes a floating top rod 25 and a floating limit seat 26. The floating top rod 25 is mounted on the swing arm base 1, and the floating limit seat 26 is mounted on one end of the floating top rod 25 and cooperates with the swing arm limit seat 33. The other end of the floating top rod 25 cooperates with the force application mechanism. A floating limit wheel 27 is mounted on the floating limit seat 26, and a swing arm limit groove 34 is provided on the swing arm limit seat 33. The floating limit wheel 27 is located in the swing arm limit groove 34.

[0036] The force-applying mechanism in this embodiment includes a floating push rod 22, a floating rotating shaft 23, and a floating roller 24. The floating push rod 22 is mounted on the swing arm base 1 via the floating rotating shaft 23. The floating roller 24 is mounted on the lower end of the floating push rod 22 and is engaged with the other end of the floating top rod 25. The upper end of the floating push rod 22 is in contact with the piston rod of the floating cylinder 21. The cylinder of the floating cylinder 21 is mounted on the swing arm base 1.

[0037] In this embodiment, the swing arm base 1 is installed on the belt sander, and two guide wheels 11 are installed on the swing arm base 1. The support wheel 36 is located between the two guide wheels 11, and the sanding belt 4 passes around the support wheel 36 and the two guide wheels 11.

[0038] In this embodiment, when the workpiece contacts the lower part of the sanding belt 4 on the outer side of the support wheel 36, the swing arm body 31 swings upward; when the workpiece contacts the upper part of the sanding belt 4 on the outer side of the support wheel 36, the swing arm body 31 swings downward.

[0039] The working method of the up-and-down floating swing arm in this embodiment is as follows: In the initial state (e.g.) Figure 1As shown), the support wheel 36 tightens the sand belt 4. Under the action of the floating cylinder 21, the floating push rod 22 is pushed to swing along the floating shaft 23, which in turn causes the floating roller 24 to push the floating top rod 25. The floating top rod 25 drives the floating limit wheel 27 on the floating limit seat 26 to push the swing arm limit seat 33, thereby making the swing arm body 31 in a horizontal state.

[0040] When the workpiece contacts the lower part of the outer sanding belt 4 of the support wheel 36 (e.g. Figure 2 As shown), at this time, the workpiece pushes the support wheel 36 upward, causing the swing arm body 31 to swing along the swing arm pivot 32. Due to the swing of the swing arm body 31, the swing arm limit seat 33 can push the floating limit seat 26 backward. At the same time, the floating limit wheel 27 slides in the swing arm limit groove 34, and can then contact the floating roller 24 through the floating top rod 25, and push the floating push rod 22 to swing along the floating pivot 23. In this state, the floating cylinder 21 pushes the floating push rod 22 to swing along the floating pivot 23, thereby achieving a state of force balance.

[0041] When the workpiece contacts the upper part of the outer sanding belt 4 of the support wheel 36 (e.g.) Figure 3 As shown), at this time, the workpiece pushes the support wheel 36 down, causing the swing arm body 31 to swing along the swing arm pivot 32. Due to the swing of the swing arm body 31, the swing arm limit seat 33 can push the floating limit seat 26 backward. At the same time, the floating limit wheel 27 slides in the swing arm limit groove 34, and can then contact the floating roller 24 through the floating top rod 25, and push the floating push rod 22 to swing along the floating pivot 23. In this state, the floating cylinder 21 pushes the floating push rod 22 to swing along the floating pivot 23, thereby achieving a state of force balance.

[0042] Specifically, the floating arm is mounted on a belt sander, and the sanding belt 4 passes around the drive wheel, two guide wheels 11, and support wheel 36 of the belt sander. Initially, the main body 31 of the arm is in a horizontal state. When the robot holds the workpiece and uses the belt sander to grind the workpiece, the workpiece contacts the sanding belt 4 on the outside of the support wheel 36. When the workpiece contacts the lower or upper part of the sanding belt 4 on the outside of the support wheel 36 (during the grinding process), the main body 31 of the arm will tilt. The floating limit seat 26 and the floating push rod 25 will be pushed backward by the arm limit seat 33, so that the floating push rod 25 contacts the floating roller 24. The floating push rod 25 pushes the floating push rod 22 to swing along the floating shaft 23. At this time, the support force provided by the floating push rod 22 pushed by the floating cylinder 21 is equal to the contact force generated when the workpiece contacts the support wheel 36, so as to achieve a state of force balance and avoid overcutting of the workpiece.

[0043] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components, etc. The above description is merely illustrative of the structure of the present invention. All equivalent or simple variations made based on the structure, features, and principles described in this patent concept are included within the protection scope of this patent. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to substitute them, as long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, all of which should fall within the protection scope of this invention.

Claims

1. A vertically floating swing arm, comprising a swing arm base (1), characterized in that: It also includes a swing arm mechanism (3) that contacts the sanding belt (4) and supports the workpiece during the grinding process, and a floating mechanism (2) that applies a supporting force to the swing arm mechanism (3) when the workpiece contacts the sanding belt (4) on the outside of the swing arm mechanism (3). The floating mechanism (2) and the swing arm mechanism (3) are both mounted on the swing arm base (1), and the floating mechanism (2) cooperates with the swing arm mechanism (3). The swing arm mechanism (3) includes a swing arm body (31), a swing arm pivot (32), a swing arm limit seat (33), a support shaft (35), and a support wheel (36). The swing arm body (31) is mounted on the swing arm base (1) via the swing arm pivot (32). The swing arm limit seat (33) is mounted on one end of the swing arm body (31), and the support wheel (36) is mounted on the other end of the swing arm body (31) via the support shaft (35). The floating mechanism (2) includes a floating top rod (25) and a floating limit seat (26). The floating top rod (25) is installed on the swing arm base (1). The floating limit seat (26) is installed on one end of the floating top rod (25) and cooperates with the swing arm limit seat (33). The other end of the floating top rod (25) cooperates with the force application mechanism. A floating limit wheel (27) is installed on the floating limit seat (26), and a swing arm limit groove (34) is provided on the swing arm limit seat (33). The floating limit wheel (27) is located in the swing arm limit groove (34). The force-applying mechanism includes a floating push rod (22), a floating shaft (23), and a floating roller (24). The floating push rod (22) is mounted on the swing arm base (1) via the floating shaft (23). The floating roller (24) is mounted on the lower end of the floating push rod (22), and the floating roller (24) is engaged with the other end of the floating top rod (25). Two guide wheels (11) are installed on the swing arm base (1), and the support wheel (36) is located between the two guide wheels (11); The sand belt (4) passes around the support wheel (36) and two guide wheels (11); When the workpiece contacts the lower part of the sanding belt (4) on the outside of the support wheel (36), the swing arm body (31) swings upward; when the workpiece contacts the upper part of the sanding belt (4) on the outside of the support wheel (36), the swing arm body (31) swings downward.

2. The vertical floating swing arm according to claim 1, characterized in that: The upper end of the floating push rod (22) is in contact with the piston rod of the floating cylinder (21), and the cylinder of the floating cylinder (21) is mounted on the swing arm base (1).

3. The vertical floating swing arm according to claim 1, characterized in that: The swing arm base (1) is installed on the belt sander.

4. A method for operating a vertically floating swing arm as described in claim 2, characterized in that: The working method is as follows: when the workpiece contacts the lower part of the sand belt (4) on the outside of the support wheel (36), the workpiece pushes the support wheel (36) upward, so that the swing arm body (31) swings along the swing arm pivot (32), the swing arm limit seat (33) pushes the floating limit seat (26) and the floating top rod (25) backward, and the floating top rod (25) pushes the lower end of the floating push rod (22) to swing along the floating pivot (23). In this state, the upper end of the floating push rod (22) is pushed along the floating pivot (23) by the floating cylinder (21), so that the force balance state can be achieved. When the workpiece contacts the upper part of the sanding belt (4) on the outside of the support wheel (36), the workpiece pushes the support wheel (36) down, causing the swing arm body (31) to swing along the swing arm pivot (32). The swing arm limit seat (33) pushes the floating limit seat (26) and the floating top rod (25) backward. The floating top rod (25) pushes the lower end of the floating push rod (22) to swing along the floating pivot (23). In this state, the floating cylinder (21) pushes the upper end of the floating push rod (22) to swing along the floating pivot (23), thereby achieving a state of force balance.

5. The working method of the up-and-down floating swing arm according to claim 4, characterized in that: In the initial state, the support wheel (36) tightens the sand belt (4), and the main body (31) of the swing arm is in a horizontal state under the action of the floating cylinder (21).

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