Swing arm capable of floating up and down

Abstract

The utility model relates to an up-down floating swing arm, and belongs to the field of polishing equipment. The polishing device comprises a swing arm base and is characterized by further comprising a swing arm mechanism which is in contact with an abrasive belt and plays a role in supporting a workpiece in the polishing process and a floating mechanism which applies supporting force to the swing arm mechanism when the workpiece is in contact with the abrasive belt on the outer side of the swing arm mechanism, and the floating mechanism and the swing arm mechanism are both installed on the swing arm base. The floating mechanism is arranged on the swing arm base and matched with the swing arm mechanism, the swing arm mechanism comprises a swing arm body, a swing arm rotating shaft, a swing arm limiting seat, a supporting shaft and a supporting wheel, the swing arm body is installed on the swing arm base through the swing arm rotating shaft, the swing arm limiting seat is installed at one end of the swing arm body, and the supporting wheel is installed at the other end of the swing arm body through the supporting shaft.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of up and down floating swing arms, belong to polishing equipment field. BACKGROUND

[0002] Workpiece is processed and needs robot to hold workpiece and be placed at abrasive belt machine to carry out polishing treatment, support wheel installed on abrasive belt machine can be used to tighten abrasive belt, and support force can also be provided when workpiece contacts with the abrasive belt outside support wheel in polishing process, current support wheel can only float in one direction, and in view of this, a kind of constant force unidirectional adjustment floating unit and working method are disclosed in patent literature with application number 202311175141.2. CONTENT OF UTILITY MODEL

[0003] The utility model aims at overcoming the above-mentioned deficiencies existing in the prior art, and provides an up and down floating swing arm with a reasonable structure design.

[0004] The utility model discloses a kind of up and down floating swing arms, including swing arm base, it is characterized by: still include the swing arm mechanism with abrasive belt contact, support the workpiece in polishing process, and when workpiece contacts with the abrasive belt outside swing arm mechanism, the floating mechanism that swing arm mechanism is applied support force, the floating mechanism and swing arm mechanism are all installed on swing arm base, and floating mechanism cooperates with swing arm mechanism.

[0005] Further, the swing arm mechanism includes a swing arm body, a swing arm shaft, a swing arm limit seat, a support shaft and a support wheel, the swing arm body is installed on the swing arm base through the swing arm shaft, the swing arm limit seat is installed at one end of the swing arm body, and the support wheel is installed at the other end of the swing arm body through the support shaft.

[0006] Further, the floating mechanism includes a floating top rod and a floating limit seat, the floating top rod is installed on the swing arm base, the floating limit seat is installed at one end of the floating top rod, and the floating limit seat cooperates with the swing arm limit seat, the other end of the floating top rod cooperates with the force applying mechanism.

[0007] Further, the floating limit seat is installed with a floating limit wheel, the swing arm limit seat is provided with a swing arm limit slot, and the floating limit wheel is located in the swing arm limit slot.

[0008] Further, the force applying mechanism includes a floating push rod, a floating shaft and a floating roller, the floating push rod is installed on the swing arm base through the floating shaft, the floating roller is installed at the lower end of the floating push rod, and the floating roller cooperates with the other end of the floating top rod.

[0009] Further, the upper end of the floating push rod is in contact with the piston rod of the floating cylinder, and the cylinder barrel of the floating cylinder is arranged on the swing arm base.

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

[0011] Further, the swing arm base is installed on a belt sander.

[0012] Further, the abrasive belt passes through the support wheel and the two guide wheels.

[0013] Further, when the workpiece contacts the lower part of the abrasive belt outside the support wheel, the swing arm body swings upward, and when the workpiece contacts the upper part of the abrasive belt outside the support wheel, the swing arm body swings downward.

[0014] Compared with the prior art, the robot holds the workpiece to perform the polishing treatment, the workpiece can contact the upper part or the lower part of the abrasive belt outside the support wheel, and the upper and lower floating swing arms can swing upward and downward during the working process, so that the workpiece can be polished at multiple angles, and the floating push rod can be pushed by the floating cylinder during the swinging process, and the floating top rod can be pushed to achieve force balance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a cross-sectional structure schematic view of the upper and lower floating swing arms (initial state) of the embodiment of the utility model.

[0016] Figure 2 is a cross-sectional structure schematic view of the upper and lower floating swing arms (upward swinging state) of the embodiment of the utility model.

[0017] Figure 3 is a cross-sectional structure schematic view of the upper and lower floating swing arms (downward swinging state) of the embodiment of the utility model.

[0018] Figure 4 is a use state structure schematic view of the upper and lower floating swing arms of the embodiment of the utility model.

[0019] Figure 5 is Figure 4 A part of the enlarged structure schematic view in.

[0020] Figure 6 is a use state structure schematic view of the upper and lower floating swing arms of the embodiment of the utility model.

[0021] In the figure: swing arm base 1, floating mechanism 2, swing arm mechanism 3, abrasive belt 4,

[0022] guide wheel 11,

[0023] floating cylinder 21, floating push rod 22, floating rotating shaft 23, floating roller 24, floating top rod 25, floating limit seat 26, floating limit wheel 27,

[0024] The swing arm body 31, the swing arm rotating shaft 32, the swing arm limiting seat 33, the swing arm limiting groove 34, the supporting shaft 35 and the supporting wheel 36. DETAILED DESCRIPTION

[0025] The utility model will be further explained in detail in combination with the drawings and by examples. The following examples are an explanation of the utility model, but the utility model is not limited to the following examples.

[0026] Embodiment

[0027] Referring to Figures 1 to 6 It is understood that the structures, proportions, sizes, etc. shown in the drawings attached to the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions that can be implemented by the utility model, so they do not have technical substantive significance. Any modification of structure, change of proportional relationship or adjustment of size, without affecting the effects that can be produced by the utility model and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed by the utility model. At the same time, if there are terms such as "up", "down", "left", "right", "middle" and "one" in the specification, they are only for the convenience of clear understanding of the description, and are not used to limit the scope of implementation of the utility model. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope of implementation of the utility model.

[0028] The up-and-down floating swing arm in the embodiment includes a swing arm base 1, a swing arm mechanism 3 in contact with the abrasive belt 4 and playing a supporting role on the workpiece during polishing, and a floating mechanism 2 for applying a supporting force to the swing arm mechanism 3 when the workpiece contacts the abrasive belt 4 outside the swing arm mechanism 3 during polishing. The floating mechanism 2 and the swing arm mechanism 3 are both installed on the swing arm base 1, and the floating mechanism 2 cooperates with the swing arm mechanism 3.

[0029] The swing arm mechanism 3 in the embodiment includes a swing arm body 31, a swing arm rotating shaft 32, a swing arm limiting seat 33, a supporting shaft 35 and a supporting wheel 36. The swing arm body 31 is installed on the swing arm base 1 through the swing arm rotating shaft 32. The swing arm limiting seat 33 is installed at one end of the swing arm body 31. The supporting wheel 36 is installed at the other end of the swing arm body 31 through the supporting shaft 35.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] The working method of the up-and-down floating swing arm in this embodiment is as follows: In the initial state (e.g.) Figure 1 As 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components. The above description is merely illustrative of the structure of this utility model. All equivalent or simple variations made based on the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, all of which should fall within the protection scope of this utility model.

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).

2. The vertical floating swing arm according to claim 1, characterized in that: 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).

3. The vertical floating swing arm according to claim 1, characterized in that: 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.

4. The vertical floating swing arm according to claim 3, characterized in that: 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).

5. The vertically floating swing arm according to claim 3, characterized in that: 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 other end of the floating roller (24) is engaged with the other end of the floating top rod (25).

6. The vertical floating swing arm according to claim 5, 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).

7. The vertical floating swing arm according to claim 2, characterized in that: 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).

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

9. The vertical floating swing arm according to claim 1, characterized in that: The sand belt (4) passes around the support wheel (36) and two guide wheels (11).

10. The vertically floating swing arm according to claim 2, characterized in that: 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.

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