A constant force one-way adjustment floating unit and working method

Abstract

The present invention relates to a constant force one-way adjustment floating unit and a working method, belonging to the field of grinding equipment. The present invention includes a fixed seat, and its structural characteristics are: it also includes a floating structure that contacts the sand belt and supports the workpiece during the grinding process, and an adjustment structure for adjusting the swing angle of the floating structure, the adjustment structure is arranged on the fixed seat, and the adjustment structure cooperates with the floating structure, the floating swing arm in the floating structure is arranged on the floating seat through a floating shaft, one end of the floating swing arm is in contact with the adjustment structure, and the floating wheel is arranged at the other end of the floating swing arm, the adjustment rod in the adjustment structure is arranged on the fixed seat, the outer shell, the clamping sleeve, the floating sleeve and the reset spring are all sleeved on the outside of the adjustment rod, the outer shell is threadedly connected to the adjustment rod, the clamping sleeve is located in the outer shell, the floating sleeve is located in the clamping sleeve, the two ends of the reset spring are respectively in contact with the clamping sleeve and the floating sleeve, and the floating sleeve is in contact with the floating structure.

Description

Technical Field

[0001] The invention relates to a constant-force one-way adjustable floating unit and a working method, belonging to the field of grinding equipment. Background Art

[0002] After the workpiece is processed, it needs to be polished. When the robot holds the workpiece to polish it, the force with which the end of the robot clamps the workpiece and presses it on the sanding belt is controlled by manual debugging points. Each person's debugging method is different, that is, the contact force is different, which can easily lead to overcutting of the workpiece, thus easily affecting the quality of the grinding surface.

[0003] In view of this, a constant force grinding device for a belt sander is disclosed in the patent document with application number 202122142280.8. In the above-mentioned prior art, a constant force is provided to the support guide wheel 3 through a constant force cylinder 4, but the magnitude of the constant force provided by the support guide wheel 3 cannot be adjusted. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a constant-force one-way adjustable floating unit with a rational structural design and a working method.

[0005] The technical solution adopted by the present invention to solve the above-mentioned problem is: the constant force one-way adjustment floating unit includes a fixed seat, and its structural characteristics are: it also includes a floating structure that contacts the sand belt and supports the workpiece during the sanding process, and an adjustment structure for adjusting the swing angle of the floating structure, the adjusting structure is arranged on the fixed seat, and the adjusting structure cooperates with the floating structure; the adjusting structure includes an adjusting rod, an outer shell, a clamping sleeve, a floating sleeve and a reset spring, the adjusting rod is arranged on the fixed seat, the outer shell, the clamping sleeve, the floating sleeve and the reset spring are all sleeved on the outside of the adjusting rod, the outer shell is threadedly connected to the adjusting rod, the clamping sleeve is located in the outer shell, the floating sleeve is located in the clamping sleeve, the two ends of the reset spring are respectively in contact with the clamping sleeve and the floating sleeve, the floating sleeve is provided with a floating protrusion, the floating protrusion is in contact with the floating structure, the outer shell is provided with an upper end face gear, the clamping sleeve is provided with a lower end face gear, and the upper end face gear cooperates with the lower end face gear. The swing angle of the floating structure can be adjusted by the adjustment structure to adjust the contact force between the floating structure and the sanding belt. The movement of the outer shell can drive the clamping sleeve to move. At the same time, the clamping sleeve and the floating sleeve can be reset by the reset spring. The upper end face gear and the lower end face gear can realize the outer shell to rotate in only one direction. If the outer shell is to be rotated in the other direction, it is necessary to pull the clamping sleeve to disengage the upper end face gear and the lower end face gear, so as to avoid the outer shell from rotating in the opposite direction during normal operation, thereby ensuring that the force of the reset spring on the floating structure does not change, thereby ensuring that the force on the workpiece is constant and unchanged.

[0006] Furthermore, the floating structure includes a floating seat, a floating swing arm, and a floating wheel. The floating swing arm is mounted on the floating seat via a floating shaft. One end of the floating swing arm contacts the adjustment structure, and the floating wheel is mounted on the other end of the floating swing arm. The floating swing arm can swing along the floating shaft on the floating seat to adjust the swing angle of the floating wheel.

[0007] Furthermore, the floating structure is disposed between two supporting and guiding structures. The fixed base and one supporting and guiding structure are disposed on the sanding machine frame, the other supporting and guiding structure is disposed on the fixed base, and the floating structure is disposed on the other supporting and guiding structure. When the sanding belt passes over the two supporting and guiding structures, the sanding belt can be brought close to a plane. The floating structure supports one side of the sanding belt, and the workpiece can be sanded using the other side of the sanding belt.

[0008] Furthermore, an adjustment hole is provided on the floating swing arm, and the adjustment hole and the adjustment rod pass through.

[0009] Furthermore, the floating swing arm is arranged in an L-shaped structure.

[0010] Furthermore, the adjusting rod is arranged on the fixing seat via a limit block. The limit block can prevent the adjusting rod from rotating along its axis.

[0011] Furthermore, the floating protrusion is arranged in an arc-shaped structure so that the contact mode between the floating protrusion and the floating swing arm is line contact. When the floating swing arm needs to be adjusted to swing along the floating axis, the floating protrusion and the floating swing arm can be in line contact to facilitate adjustment of the floating swing arm.

[0012] Furthermore, another technical purpose of the present invention is to provide a working method for a constant-force one-way adjustable floating unit.

[0013] The above technical objectives of the present invention are achieved through the following technical solutions.

[0014] A method for operating a constant force one-way adjustable floating unit is characterized in that:

[0015] When the swing angle of the floating structure needs to be adjusted to one end through the adjustment structure, the housing is rotated forward and moves downward along the adjustment rod, and the housing drives the compression sleeve, the floating sleeve and the return spring to move downward together, so that the swing angle of the floating structure can be adjusted to one end;

[0016] When it is necessary to adjust the swing angle of the floating structure to the other end through the adjustment structure, the clamping sleeve is pulled downward to disengage the upper end face gear from the lower end face gear. At this time, the outer shell can be rotated in the opposite direction to move the outer shell upward along the adjustment rod, and the clamping sleeve is loosened to reset the clamping sleeve through the reset spring, thereby making the upper end face gear engage with the lower end face gear, and the swing angle of the floating structure can be adjusted to the other end.

[0017] Compared with the existing technology, the present invention has the following advantages: the constant force one-way adjustment floating unit can realize one-way adjustment of the outer shell through the upper end face gear and the lower end face gear, that is, it realizes the adjustment of the force of the reset spring exerted on the floating structure. During normal operation, the upper end face gear and the lower end face gear can prevent the outer shell from rotating in the opposite direction, thereby ensuring that the force exerted by the reset spring on the floating structure does not change, thereby ensuring that the force on the workpiece is constant and unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic cross-sectional structural diagram of a constant-force one-way adjustable floating unit according to an embodiment of the present invention.

[0019] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of part A in .

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the constant force one-way adjustable floating unit according to an embodiment of the present invention.

[0021] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of part B in .

[0022] Figure 5 It is a schematic diagram of the installation structure of the constant force one-way adjustable floating unit according to an embodiment of the present invention.

[0023] In the figure: fixed seat 1, floating structure 2, adjustment structure 3, support guide structure 4, sanding machine frame 5, sanding belt 6,

[0024] Floating seat 21, floating shaft 22, floating swing arm 23, floating wheel 24, adjustment hole 25,

[0025] Adjusting rod 31, housing 32, pressing sleeve 33, floating sleeve 34, return spring 35, upper end face gear 36, lower end face gear 37, floating protrusion 38, limit block 39,

[0026] Support guide seat 41 and support guide wheel 42. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are intended to explain the present invention but the present invention is not limited to the following examples.

[0028] Example

[0029] See also Figures 1 to 5 As shown, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, if there are references to terms such as "upper", "lower", "left", "right", "middle" and "one" in this specification, they are only for the convenience of description and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0030] The constant force one-way adjustment floating unit in this embodiment includes a fixed seat 1, a floating structure 2 that contacts the sanding belt 6 and supports the workpiece during the sanding process, and an adjustment structure 3 for adjusting the swing angle of the floating structure 2. The adjustment structure 3 is arranged on the fixed seat 1, and the adjustment structure 3 cooperates with the floating structure 2.

[0031] The floating structure 2 in this embodiment is arranged between two supporting guide structures 4, the fixed seat 1 and one supporting guide structure 4 are arranged on the sanding machine frame 5, the other supporting guide structure 4 is arranged on the fixed seat 1, and the floating structure 2 is arranged on the other supporting guide structure 4. The supporting guide structure 4 includes a supporting guide seat 41 and a supporting guide wheel 42. The supporting guide wheel 42 is arranged on the supporting guide seat 41. When the sanding belt 6 passes around the two supporting guide wheels 42, the sanding belt 6 can form a planar structure. The floating wheel 24 is supported on one side of the plane, and the workpiece can be polished on the other side of the plane. During the polishing process, the floating wheel 24 can support the sanding belt 6 and the workpiece.

[0032] The floating structure 2 in this embodiment includes a floating seat 21, a floating swing arm 23 and a floating wheel 24. The floating swing arm 23 is arranged in an L-shaped structure. The floating swing arm 23 is arranged on the floating seat 21 through a floating shaft 22. One end of the floating swing arm 23 is in contact with the adjustment structure 3. The floating wheel 24 is arranged at the other end of the floating swing arm 23. An adjustment hole 25 is provided on the floating swing arm 23, and the adjustment hole 25 passes through the adjustment rod 31.

[0033] The adjustment structure 3 in this embodiment includes an adjustment rod 31, a shell 32, a clamping sleeve 33, a floating sleeve 34 and a reset spring 35. An upper end face gear 36 is provided on the shell 32, and a lower end face gear 37 is provided on the clamping sleeve 33. The upper end face gear 36 cooperates with the lower end face gear 37.

[0034] When the upper end face gear 36 and the lower end face gear 37 are engaged, the housing 32 can rotate in the forward direction, which is a one-way adjustment function. When the upper end face gear 36 and the lower end face gear 37 are disengaged, the housing 32 rotates in the reverse direction. That is, during the normal grinding process, the upper end face gear 36 and the lower end face gear 37 are in an engaged state to prevent the housing 32 from rotating in the reverse direction, so as to ensure that the force of the return spring 35 on the floating structure 2 is constant and unchanged, thereby ensuring that the contact force between the floating structure 2 and the sanding belt 6 is constant, which is what the present application refers to as "constant force one-way adjustment".

[0035] The adjusting rod 31 in this embodiment is set on the fixed seat 1 through the limit block 39, and the outer shell 32, the clamping sleeve 33, the floating sleeve 34 and the return spring 35 are all mounted on the outside of the adjusting rod 31. The outer shell 32 is threadedly connected to the adjusting rod 31, the clamping sleeve 33 is located in the outer shell 32, the floating sleeve 34 is located in the clamping sleeve 33, and the two ends of the return spring 35 are respectively in contact with the clamping sleeve 33 and the floating sleeve 34. A floating protrusion 38 is provided on the floating sleeve 34, and the floating protrusion 38 is in contact with the floating structure 2. The floating protrusion 38 is arranged in an arc-shaped structure so that the contact mode between the floating protrusion 38 and the floating swing arm 23 is line contact.

[0036] The floating protrusion 38 and the floating swing arm 23 adopt a line contact method to reduce the contact area between the floating sleeve 34 and the floating swing arm 23. The floating sleeve 34 encounters less resistance when pushing the floating swing arm 23 to swing, making the floating swing arm 23 rotate more smoothly along the floating shaft 22.

[0037] The working method of the constant force one-way adjustment floating unit is as follows:

[0038] When the constant force one-way adjustable floating unit is working normally, the two ends of the reset spring 35 respectively press the clamping sleeve 33 and the floating sleeve 34 tightly, so that the floating wheel 24 contacts the sanding belt 6. During the grinding process, when the workpiece contacts the sanding belt 6 in front of the floating wheel 24, the floating swing arm 23 will rotate along the floating axis 22, and the reset spring 35 will be compressed. After the grinding is completed, the floating swing arm 23 will be reset by the reset spring 35.

[0039] When it is necessary to adjust the swing angle of the floating structure 2 toward one end through the adjustment structure 3 (which can be understood as adjusting the contact force between the floating wheel 24 and the sanding belt 6), the outer shell 32 is rotated forward and moves downward along the adjustment rod 31. The outer shell 32 drives the clamping sleeve 33, the floating sleeve 34, and the return spring 35 to move downward together, thereby achieving the adjustment of the swing angle of the floating structure 2 toward one end.

[0040] When it is necessary to adjust the swing angle of the floating structure 2 toward the other end through the adjustment structure 3 (which can be understood as adjusting the contact force between the floating wheel 24 and the sanding belt 6), the clamping sleeve 33 is pulled downward to disengage the upper end face gear 36 from the lower end face gear 37. At this time, the housing 32 can be rotated in the opposite direction so that the housing 32 moves upward along the adjustment rod 31, and the clamping sleeve 33 is loosened to reset the clamping sleeve 33 through the reset spring 35, thereby making the upper end face gear 36 engage with the lower end face gear 37, so that the swing angle of the floating structure 2 can be adjusted toward the other end.

[0041] It should be noted that the "one-way adjustment" in this application refers to the normal working state, when the two ends of the return spring 35 respectively press the clamping sleeve 33 and the floating sleeve 34, the upper end face gear 36 and the lower end face gear 37 are engaged with each other. In this state, the shell 32 can only rotate in the forward direction and cannot rotate in the reverse direction, that is, "one-way adjustment"; it does not mean that the shell 32 cannot rotate in the reverse direction under any state. When the clamping sleeve 33 is pulled to disengage the upper end face gear 36 and the lower end face gear 37, the shell 32 can rotate in the reverse direction.

[0042] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure of the present invention. Any equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the present invention are included in the protection scope of the patent of the present invention. Those skilled in the art of the technology to which the present invention belongs can make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A constant force one-way adjustable floating unit, comprising a fixing seat (1), characterized in that: The invention also includes a floating structure (2) that contacts the sanding belt (6) and supports the workpiece during the sanding process, and an adjusting structure (3) for adjusting the swing angle of the floating structure (2), wherein the adjusting structure (3) is arranged on the fixed seat (1) and cooperates with the floating structure (2); the adjusting structure (3) includes an adjusting rod (31), a housing (32), a pressing sleeve (33), a floating sleeve (34) and a return spring (35), wherein the adjusting rod (31) is arranged on the fixed seat (1), and the housing (32), the pressing sleeve (33), the floating sleeve (34) and the return spring (35) are all sleeved on the adjusting rod (31). Outside the section rod (31), the housing (32) is threadedly connected to the adjusting rod (31), the pressing sleeve (33) is located in the housing (32), the floating sleeve (34) is located in the pressing sleeve (33), the two ends of the return spring (35) are respectively in contact with the pressing sleeve (33) and the floating sleeve (34), the floating sleeve (34) is provided with a floating protrusion (38), the floating protrusion (38) is in contact with the floating structure (2), the housing (32) is provided with an upper end face gear (36), the pressing sleeve (33) is provided with a lower end face gear (37), and the upper end face gear (36) cooperates with the lower end face gear (37).

2. The constant force one-way adjustable floating unit according to claim 1, characterized in that: The floating structure (2) comprises a floating seat (21), a floating swing arm (23) and a floating wheel (24); the floating swing arm (23) is arranged on the floating seat (21) via a floating shaft (22); one end of the floating swing arm (23) is in contact with the adjustment structure (3); and the floating wheel (24) is arranged at the other end of the floating swing arm (23).

3. The constant force one-way adjustable floating unit according to claim 1, characterized in that: The floating structure (2) is arranged between two supporting guide structures (4); the fixed seat (1) and one supporting guide structure (4) are arranged on a sanding machine frame (5); the other supporting guide structure (4) is arranged on the fixed seat (1); and the floating structure (2) is arranged on the other supporting guide structure (4).

4. The constant force one-way adjustable floating unit according to claim 2, characterized in that: An adjustment hole (25) is provided on the floating swing arm (23), and the adjustment hole (25) and the adjustment rod (31) penetrate through.

5. The constant force one-way adjustable floating unit according to claim 2, characterized in that: The floating swing arm (23) is arranged in an L-shaped structure.

6. The constant force one-way adjustable floating unit according to claim 1, characterized in that: The adjusting rod (31) is arranged on the fixing seat (1) via a limiting block (39).

7. The constant force one-way adjustable floating unit according to claim 1, characterized in that: The floating protrusion (38) is arranged in an arc-shaped structure.

8. A method for operating a constant force one-way adjustable floating unit according to any one of claims 1 to 7, characterized in that: The working method is as follows: When it is necessary to adjust the swing angle of the floating structure (2) toward one end through the adjustment structure (3), the housing (32) is rotated in the forward direction and the housing (32) is moved downward along the adjustment rod (31), and the housing (32) drives the compression sleeve (33), the floating sleeve (34), and the return spring (35) to move downward together, thereby achieving the adjustment of the swing angle of the floating structure (2) toward one end; When it is necessary to adjust the swing angle of the floating structure (2) toward the other end through the adjustment structure (3), the clamping sleeve (33) is pulled downward to disengage the upper end face gear (36) from the lower end face gear (37). At this time, the housing (32) can be rotated in the opposite direction to move the housing (32) upward along the adjustment rod (31). The clamping sleeve (33) is released and reset by the reset spring (35), thereby making the upper end face gear (36) mesh with the lower end face gear (37), thereby achieving the adjustment of the swing angle of the floating structure (2) toward the other end.

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