A grinding device with constant grinding pressure

Abstract

This invention belongs to the field of workpiece end-face grinding technology, and provides a grinding device with constant grinding pressure. It mainly includes a grinding base with a first cavity; a grinding rod movably mounted on the grinding base, with a fixed support on the side of the grinding rod located within the first cavity; a position sensor for detecting the movement distance of the fixed support relative to the grinding base; a first sleeve movably mounted on the grinding base and movable along the length of the grinding rod; a pressure adjusting block disposed on the grinding rod, with a first elastic element between the pressure adjusting block and the first sleeve, the two ends of the first elastic element abutting against the pressure adjusting block and the first sleeve respectively; and a first adjusting block movably mounted on the grinding base and connected to the first sleeve, driving the first sleeve to move relative to the grinding rod. By adopting the above structure, the first sleeve is moved by the first adjusting block, thereby ensuring that the distance between the first sleeve and the pressure adjusting block remains unchanged, thus guaranteeing a constant grinding pressure.

Description

Technical Field

[0001] This invention belongs to the field of workpiece end face grinding technology, and specifically refers to a grinding device with constant grinding pressure. Background Technology

[0002] Grinding is an essential process in the machining of high-precision workpieces. In some special applications, grinding is necessary to improve the surface finish and flatness of the workpiece end faces. Generally, in existing technologies, grinding is performed using the following methods: Direct grinding involves the workpiece surface directly contacting the grinding disc. Under the influence of the workpiece's own mass or other auxiliary pressure, the workpiece surface is ground through reciprocating friction with the grinding disc surface. However, this grinding process has two drawbacks: firstly, the grinding pressure cannot be adjusted or controlled; secondly, the grinding amount cannot be precisely controlled. Therefore, this grinding process is rarely used in high-precision grinding applications.

[0003] With the development of grinding technology, workpieces to be ground can be installed in a grinding device, which consists of three parts: a fixed frame, a movable frame, and a position sensing mechanism. The position sensing mechanism is mounted on the fixed frame, and its detector contacts the movable frame, providing real-time feedback on the movable frame's position changes. The workpiece to be ground is then mounted on the movable frame, allowing the grinding amount to be fed back via a display, thus achieving controllable grinding. However, this grinding process still suffers from the problem of grinding pressure being unable to be adjusted or controlled. When a workpiece requires high-precision grinding, a constant grinding pressure is needed to ensure accuracy and guarantee the surface finish and flatness of the workpiece. Therefore, the above-mentioned device cannot meet the grinding requirements of high-precision workpieces. Summary of the Invention

[0004] This invention provides a grinding device with constant grinding pressure, which achieves constant grinding pressure during the workpiece grinding process and meets the high precision requirements of workpiece grinding.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A grinding apparatus with constant grinding pressure, comprising: A grinding base has a first cavity, a first through hole on the upper side of the grinding base communicating with the first cavity, and a grinding port on the lower side of the grinding base communicating with the first cavity. The grinding rod has a preset length. One end of the grinding rod passes through the first through hole and is located in the first cavity. The end of the grinding rod located in the first cavity is provided with a fixed bracket. The grinding rod can move relative to the grinding base in its own length direction. A position sensor is disposed within the first cavity of the grinding base, and the position sensor is used to detect the movement distance of the fixed bracket relative to the grinding base. The first sleeve is movably fitted onto the grinding base, and the first sleeve can move along the length of the grinding rod. A pressure regulating block is disposed on the grinding rod. A first elastic element is provided between the pressure regulating block and the first sleeve. One end of the first elastic element abuts against the pressure regulating block, and the other end of the first elastic element abuts against the first sleeve. A first adjusting block is disposed on the grinding base. The first adjusting block is movably disposed relative to the grinding base. The first adjusting block is connected to the first sleeve. The first adjusting block and the first sleeve move synchronously and in the same direction.

[0006] In some embodiments, the grinding base is provided with a first adjusting rod, which is arranged parallel to the grinding rod, and the first adjusting block is movably disposed on the first adjusting rod.

[0007] In some embodiments, the first elastic element is a first spring, the first spring sleeve is movably sleeved on the grinding rod, and the two ends of the first spring abut against the pressure adjusting block and the first sleeve, respectively.

[0008] In some embodiments, the first sleeve has a first annular support platform inside, the first annular support platform has a first clearance hole, one end of the first spring abuts against the first annular support platform, and the grinding rod passes through the first clearance hole.

[0009] In some embodiments, the grinding base is provided with a first support cylinder, the outer diameter of the first support cylinder is matched with the inner diameter of the first sleeve, and the first sleeve is movably sleeved on the first support cylinder.

[0010] In some embodiments, the pressure regulating block is provided with a first internal thread, and the grinding rod is provided with a matching first external thread.

[0011] In some embodiments, the first annular support platform and the lower end of the first sleeve are provided with a first gap, the first gap being greater than or equal to the grinding thickness of the workpiece to be ground.

[0012] In some embodiments, a first annular limiting baffle is provided on the lower side of the pressure regulating block, a preset gap is provided between the first annular limiting baffle and the grinding rod, and a portion of the first spring is located between the first annular limiting baffle and the grinding rod.

[0013] In some embodiments, the grinding base is provided with a first connecting rod, the position sensor is disposed at one end of the first connecting rod located in the first cavity, and the fixing bracket can abut against one end of the first connecting rod.

[0014] In some embodiments, the system further includes a control center, the position sensor being communicatively connected to the control center, and the control center being communicatively connected to the first adjustment block.

[0015] Compared with the prior art, the beneficial effects of this invention are: This application uses a position sensor to monitor the relative position of the fixed bracket in real time. The position feedback from the position sensor is used to adjust the pressure adjustment block and the first sleeve. A first elastic element is placed between the pressure adjustment block and the first sleeve. By adjusting the relative distance between the first sleeve and the pressure adjustment block, the elastic force provided by the first elastic element is changed. This force is then fed back to the grinding rod through the pressure adjustment block. The position of the first sleeve is adjusted by the first adjustment block to ensure that the adjustment distance of the first sleeve is consistent with the grinding amount of the workpiece, thereby achieving a constant grinding force.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the internal structure of a grinding device with constant grinding pressure according to the present invention. Detailed Implementation

[0018] The present application will be further described in detail below with reference to the accompanying drawings. In the description of the embodiments, unless otherwise stated, the terms "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the present application must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present application.

[0019] like Figure 1 As shown, a grinding device with constant grinding pressure provided by the present invention mainly includes a grinding base 100, which has a first cavity 1002. A first through hole is provided on the grinding base 100, which communicates with the first cavity 1002. A grinding port is provided on the lower side of the grinding base 100, which also communicates with the first cavity 1002. A grinding surface 1001 is provided on the grinding port. When grinding a workpiece, the side of the workpiece being ground is flush with the grinding surface 1001. In this embodiment, the grinding surface 1001 is a planar structure.

[0020] The grinding rod 200 is set to a preset length. One end of the grinding rod 200 is located inside the first cavity 1002 through the first through hole, so that one end of the grinding rod 200 is located inside the first cavity 1002 and the other end is located outside the first cavity 1002. A fixed bracket 201 is provided on the inner side of the grinding rod 200 located in the first cavity 1002. The fixed bracket 201 is provided with a mounting position for mounting and fixing the workpiece 202 to be ground. The grinding rod 200 can move in its own length direction, thereby driving the workpiece 202 to be ground to be further ground.

[0021] A position sensor 1041 is disposed within the first cavity 1002 of the grinding base to monitor the real-time movement distance of the fixed bracket 201 relative to the grinding base 100, thereby ensuring accurate knowledge of the grinding thickness of the workpiece 202 to be ground. In this embodiment, a retractable first connecting rod 104 is provided on the grinding base 100, and a position sensor 1041 is disposed at one end of the retractable first connecting rod 104. The position sensor 1041 is in fixed contact with the fixed bracket 201, and provides real-time feedback on the displacement of the grinding rod 200 along its own length. Optionally, the position sensor 1041 can be an infrared sensor or other distance-measuring sensor, which is existing technology and will not be described in detail here.

[0022] The first sleeve 102 is movably fitted onto the grinding base 100. The first sleeve 102 can reciprocate on the grinding base 100, and its direction of movement is consistent with the length direction of the grinding rod 200. In this embodiment, a first support cylinder 101 is provided on the grinding base 100. The first support cylinder 101 is coaxially arranged with the first through hole. The outer diameter of the first support cylinder 101 is adapted to the inner diameter of the first sleeve 102. The first sleeve 102 can reciprocate linearly on the first support cylinder 101. The first support cylinder 101 is provided with a certain length to meet the reciprocating linear movement of the first sleeve 102.

[0023] A pressure adjusting block 203 is disposed on the grinding rod 200. A first elastic element 105 is provided between the pressure adjusting block 203 and the first sleeve 102. The two ends of the first elastic element 105 abut against the first sleeve 102 and the pressure adjusting block 203, respectively. By adjusting the distance between the pressure adjusting block 203 and the first sleeve 102, the degree of compression of the first elastic element 105 is changed to provide different elastic forces. In this embodiment, the pressure adjusting block 203 is fixedly disposed relative to the grinding rod 200. During the grinding process, the pressure adjusting block 203 and the grinding rod 200 move synchronously.

[0024] The first adjusting block 1031 is movably mounted on the grinding base 100. The first adjusting block 1031 can reciprocate linearly relative to the grinding base 100, and its direction of movement is parallel to the direction of movement of the grinding rod 200. The first adjusting block 1031 is fixedly connected to the first sleeve 102, thereby achieving synchronous movement of the first adjusting block 1031 and the first sleeve 102. The main purpose of the first adjusting block 1031 is to drive the first sleeve 102 to move. When the workpiece 202 to be ground has been ground to a certain extent, the grinding rod relative to the grinding base 200... Figure 1 The first elastic element 105 moves up and down, causing the pressure adjusting block 203 to move down. Therefore, in order to ensure that the elastic force provided by the first elastic element 105 is consistent, the first adjusting block 1031 drives the first sleeve 102 to move a certain distance, which is consistent with the grinding amount (i.e., the workpiece grinding thickness). This ensures that the elastic force generated by the first elastic element 105 is consistent, and that the supporting elastic force of the first elastic element 105 on the grinding rod 200 through the pressure adjusting block 203 is consistent, thus ensuring constant pressure for grinding.

[0025] In this application, by setting the above structure, the moving distance of the first adjusting block 1031 driving the first sleeve 102 can be kept consistent with the grinding amount (i.e. the grinding thickness of the workpiece) of the workpiece 202 to be ground during the grinding process, thereby ensuring that the elastic support force provided by the first elastic element 105 to the grinding rod 200 is consistent, and constant pressure grinding is achieved.

[0026] In one embodiment, a first adjusting rod 103 is provided on the grinding base 100, and the first adjusting rod 103 is arranged parallel to the grinding rod 200. A first adjusting block 1031 is movably disposed on the first adjusting rod 103. In this embodiment, the first adjusting rod 103 is used for limiting the movement, allowing the first adjusting block 1031 to move reciprocally in a linear motion. In this embodiment, the first adjusting block 1031 can be automatically adjusted by external force, such as through a screw and nut structure or a synchronous belt and pulley structure. The nut or synchronous belt is connected to the first adjusting block 1031, and the reciprocating linear movement is achieved in conjunction with the limiting effect of the first adjusting rod 103.

[0027] In one embodiment, to provide more stable elastic support and simplify assembly, the first elastic element 105 is a first spring, which is movably sleeved on the grinding rod 200. The two ends of the first spring abut against the first sleeve 102 and the pressure adjusting block 203, respectively. The elastic force provided by the first spring is its own deformation multiplied by its elastic coefficient, and its structure is more stable than other elastic elements.

[0028] In one embodiment, to facilitate support for the first elastic element 105 and to allow relative movement of the first sleeve 102 relative to the grinding rod 200, a first annular support platform 1021 is provided inside the first sleeve 102. The first annular support platform 1021 has a first clearance hole. One end of the first spring abuts against the first annular support platform 1021, and the grinding rod 200 movably passes through the first clearance hole. In this embodiment, the diameter of the first clearance hole is adapted to the outer diameter of the grinding rod 200, thereby restricting the linear movement of the first sleeve 102 relative to the grinding base 100.

[0029] In one embodiment, to facilitate the adjustment of the spring force of the first spring, a first internal thread is provided on the pressure adjusting block 203, and a matching first external thread is provided on the grinding rod 200. The first internal and first external thread structures facilitate the adjustment of the distance between the pressure adjusting block 203 and the first sleeve 102, thereby adjusting the spring force of the first elastic element. Simultaneously, the first internal and first external threads also allow the pressure adjusting block to remain fixed in position relative to the grinding rod 200 when no external force is applied, simplifying assembly and operation.

[0030] Furthermore, to ensure that the moving distance between the first sleeve 102 and the grinding base 100 meets the maximum grinding thickness of the workpiece 202 to be ground, a first gap is provided between the lower end of the first annular support platform 1021 and the first sleeve 102. The first gap is greater than or equal to the maximum grinding thickness of the workpiece 202 to be ground. This structure avoids motion interference, allowing the workpiece to be ground to be fully ground and meeting the maximum grinding requirements.

[0031] Furthermore, a first annular limiting baffle is provided on the lower side of the pressure regulating block 203. A preset gap is provided between the first annular limiting baffle and the grinding rod 200, and part of the first spring is located between the first annular limiting baffle and the grinding rod 200. By setting the first annular limiting baffle, one end of the first elastic member 105 can be effectively limited, preventing the first elastic member 105 from moving outward relative to the grinding rod.

[0032] In one embodiment, to achieve automated movement of the grinding rod 200 and timely feedback on the grinding thickness of the workpiece 202 to be ground, ensuring a constant distance between the first sleeve 102 and the pressure regulating block 203 and achieving constant grinding pressure, a control center is also included. A position sensor 1041 is communicatively connected to the control center, which is also communicatively connected to the first regulating block 1031. As mentioned above, the adjustment of the first regulating block 1031 can be automated using a lead screw and nut or a synchronous belt and pulley structure, and is automatically controlled by a servo motor. This is prior art and will not be elaborated further here.

[0033] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A grinding device having a constant grinding pressure, characterized by, include: A grinding base has a first cavity, a first through hole on the upper side of the grinding base communicating with the first cavity, and a grinding port on the lower side of the grinding base communicating with the first cavity. The grinding rod has a preset length. One end of the grinding rod passes through the first through hole and is located in the first cavity. The end of the grinding rod located in the first cavity is provided with a fixed bracket. The grinding rod can move relative to the grinding base in its own length direction. A position sensor is disposed within the first cavity of the grinding base, and the position sensor is used to detect the movement distance of the fixed bracket relative to the grinding base. The first sleeve is movably fitted onto the grinding base, and the first sleeve can move along the length of the grinding rod. A pressure regulating block is disposed on the grinding rod. A first elastic element is provided between the pressure regulating block and the first sleeve. One end of the first elastic element abuts against the pressure regulating block, and the other end of the first elastic element abuts against the first sleeve. A first adjusting block is disposed on the grinding base. The first adjusting block is movably disposed relative to the grinding base. The first adjusting block is connected to the first sleeve. The first adjusting block and the first sleeve move synchronously and in the same direction.

2. A lapping apparatus having a constant lapping pressure as claimed in claim 1, wherein, The grinding base is provided with a first adjusting rod, which is arranged parallel to the grinding rod, and the first adjusting block is movably disposed on the first adjusting rod.

3. The polishing apparatus having a constant polishing pressure according to claim 1, wherein The first elastic element is a first spring, and the first spring sleeve is movably sleeved on the grinding rod. The two ends of the first spring abut against the pressure adjusting block and the first sleeve, respectively.

4. A lapping apparatus having a constant lapping pressure as defined in claim 3, wherein The first sleeve has a first annular support platform inside, and the first annular support platform has a first clearance hole. One end of the first spring abuts against the first annular support platform, and the grinding rod passes through the first clearance hole.

5. The polishing apparatus having a constant polishing pressure according to claim 1, wherein The grinding base is provided with a first support cylinder, the outer diameter of the first support cylinder is matched with the inner diameter of the first sleeve, and the first sleeve is movably sleeved on the first support cylinder.

6. The polishing apparatus having a constant polishing pressure according to claim 1, wherein The pressure regulating block is provided with a first internal thread, and the grinding rod is provided with a matching first external thread.

7. The polishing apparatus having a constant polishing pressure according to claim 4, wherein The first annular support platform and the lower end of the first sleeve are provided with a first gap, the first gap being greater than or equal to the grinding thickness of the workpiece to be ground.

8. The polishing apparatus having a constant polishing pressure according to Claim 3, wherein The pressure regulating block is provided with a first annular limiting baffle on its lower side. A preset gap is provided between the first annular limiting baffle and the grinding rod. A portion of the first spring is located between the first annular limiting baffle and the grinding rod.

9. The polishing apparatus having a constant polishing pressure according to Claim 1, wherein The grinding base is provided with a first connecting rod, the position sensor is located at one end of the first connecting rod inside the first cavity, and the fixed bracket can abut against one end of the first connecting rod.

10. A grinding device with constant grinding pressure according to any one of claims 1-9, characterized in that, It also includes a control center, the position sensor is communicatively connected to the control center, and the control center is communicatively connected to the first adjustment block.

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