Linear slider inner groove forming grinding device

Abstract

The application relates to the technical field of precision grinding processing equipment, in particular to a linear sliding block inner groove forming grinding device, which comprises a mounting frame, a loading mechanism, a driving mechanism and two oppositely arranged grinding block assemblies arranged on the mounting frame; two grinding block assemblies capable of moving along corresponding pressing directions are arranged on the mounting frame, a floating transmission member is driven by the loading mechanism to respectively transmit loading actions to the two grinding block assemblies, the floating transmission member can produce adaptive displacement along the arrangement direction of the two grinding block assemblies according to the force difference of the two grinding block assemblies, meanwhile, the transmission connection between the driving mechanism and the grinding block assemblies allows the grinding block assemblies to produce relative displacement along the pressing direction relative to the driving mechanism, so that the problems that the existing device cannot simultaneously consider the self-adaptive fitting of the two grinding block assemblies to different grooves, the coordination of the pressing state and the stable transmission of high-frequency reciprocating power are solved.

Description

Technical Field

[0001] This invention relates to the field of precision grinding equipment technology, specifically to a linear slider internal groove forming grinding device. Background Technology

[0002] Linear sliders are an important component of linear guide pairs. Grooves extending along the length of the linear slider are respectively provided on its two opposing inner walls. These grooves are used to engage with rolling elements and transmit the load between the linear slider and the linear guide rail through the rolling elements. The cross-sectional profile, surface roughness, and positional relationship between the two opposing grooves affect the contact area and stress state between the rolling elements and the grooves, thus affecting the linear slider's motion accuracy, running resistance, load-bearing capacity, and service life. Therefore, even after the linear slider has undergone rough machining, heat treatment, and preliminary grinding of the grooves, the groove surface may still have minor machining allowances, local high points, and surface textures. To further improve the groove's profile accuracy and surface quality, a grinding block adapted to the groove profile can be pressed against the groove and driven to perform a short-stroke, high-frequency reciprocating motion along the groove's length. During the reciprocating motion, the grinding block repeatedly passes over the groove surface to remove local high points and minor machining allowances, thereby completing the ultra-precision machining of the groove.

[0003] In existing automated machining equipment, to simultaneously machine the grooves on two opposing inner walls of a linear slider, two opposing grinding blocks are typically used. These blocks are moved towards the corresponding grooves by the same loading structure. When the positions and machining allowances of the two grooves are essentially the same, the two grinding blocks can contact the corresponding grooves relatively synchronously. However, after pre-processing and heat treatment, there may be positional deviations, differences in machining allowances, or local undulations along the length of the two grooves. The two grinding blocks may also experience varying degrees of wear after continuous use. When the two grinding blocks are rigidly connected or fed synchronously with equal amounts, one grinding block may contact the corresponding groove first, while the other grinding block has not yet fully formed contact. If the loading structure continues to feed, the grinding block that contacts the groove first will be subjected to a large clamping force, which may easily cause an excessive amount of material removal in the corresponding groove. Meanwhile, the other groove may not be fully processed due to insufficient contact between the grinding blocks. If independent loading structures are set for the two grinding blocks, although the two grinding blocks can adjust their clamping positions separately, the output states of the two loading structures need to be controlled separately, which can easily increase the complexity of the equipment structure and control process. In addition, while the two grinding blocks adjust their positions along the clamping direction, they also need to perform high-frequency reciprocating motion along the length of the groove. Ordinary rigid transmission structures will limit the position adjustment of the grinding blocks along the clamping direction, while overly flexible transmission structures may reduce the transmission stability of high-frequency reciprocating displacement. Summary of the Invention

[0004] To address the aforementioned problems, a linear slider internal groove forming grinding device is provided. This device features two grinding block assemblies mounted on a mounting frame, each capable of moving along a corresponding clamping direction. A loading mechanism drives a floating transmission component to transmit loading to the two grinding block assemblies. This allows the floating transmission component to adaptively displace along the arrangement direction of the two grinding block assemblies based on the force difference. Simultaneously, the transmission connection between the driving mechanism and the grinding block assemblies allows relative displacement of the grinding block assemblies relative to the driving mechanism along the clamping direction. This solves the problem that existing devices struggle to simultaneously achieve adaptive fitting of the two grinding block assemblies to different grooves, coordinated clamping states, and stable transmission of high-frequency reciprocating power.

[0005] To address the problems of existing technologies, this invention provides a linear slider internal groove forming grinding device, including a mounting frame. The mounting frame is equipped with a loading mechanism, a driving mechanism, and two opposing grinding block assemblies. Each of the two grinding block assemblies includes a grinding block for contacting grooves on two opposing inner walls of the linear slider, and is movable relative to the mounting frame along a pressing direction approaching or away from the corresponding groove. The loading mechanism is driven by a floating transmission member, which is in drive cooperation with each of the two grinding block assemblies. Under the action of the loading mechanism, the floating transmission member drives the two grinding block assemblies to move towards their respective grooves, and can generate adaptive displacement along the arrangement direction of the two grinding block assemblies according to the force difference. The driving mechanism is driven by the two grinding block assemblies and drives the grinding blocks in the two grinding block assemblies to perform high-frequency reciprocating motion along the length direction of the groove. The drive mechanism and the two grinding block assemblies allow relative displacement between the two grinding block assemblies and the driving mechanism along the corresponding pressing direction.

[0006] Preferably, the grinding block assembly further includes a clamping seat and a reciprocating seat, the clamping seat being slidably disposed on the mounting bracket along the clamping direction, the reciprocating seat being slidably disposed on the clamping seat along the length direction of the groove, and the grinding block being disposed on the reciprocating seat.

[0007] Preferably, the mounting bracket is provided with a first guide portion extending along the pressing direction, and the pressing seat is slidably engaged with the first guide portion; the pressing seat is provided with a second guide portion extending along the length direction of the groove, and the reciprocating seat is slidably engaged with the second guide portion.

[0008] Preferably, the floating transmission member is provided with two transmission parts, and the two grinding block assemblies are respectively provided with follower parts. The two transmission parts are respectively driven and cooperate with the corresponding follower parts. When the floating transmission member moves along the loading direction of the loading mechanism, the two transmission parts respectively drive the two grinding block assemblies to move in opposite pressing directions through the corresponding follower parts.

[0009] Preferably, the two transmission parts are two guide grooves disposed on the floating transmission member, and the two guide grooves are mirror images of the center line extending along the loading direction on the floating transmission member; the two follower parts are rolling elements rotatably disposed on the two grinding block assemblies, each rolling element is disposed in a corresponding guide groove and rolls with the guide groove.

[0010] Preferably, the loading mechanism includes a cylinder, a mounting plate, and a loading guide structure. The cylinder is disposed on the mounting frame, and the output end of the cylinder is connected to the mounting plate. The mounting plate is slidably disposed on the mounting frame along the loading direction of the loading mechanism via the loading guide structure. The floating transmission member is slidably disposed on the mounting plate along the arrangement direction of the two grinding block assemblies, so that the floating transmission member moves with the mounting plate along the loading direction and can move relative to the mounting plate along the arrangement direction of the two grinding block assemblies.

[0011] Preferably, the loading mechanism further includes a pressure control component connected to the cylinder, the pressure control component being used to detect and adjust the working pressure of the cylinder so that the loading force applied by the cylinder to the floating transmission member through the mounting plate is maintained within a preset range.

[0012] Preferably, the driving mechanism includes a rotary drive component, an eccentric component, a connecting rod, and a reciprocating drive seat. The eccentric component is driveably connected to the rotary drive component, and the two ends of the connecting rod are rotatably connected to the eccentric component and the reciprocating drive seat, respectively. The reciprocating drive seat is slidably disposed on the mounting frame along the length direction of the groove and is driveably connected to the two reciprocating seats, respectively.

[0013] Preferably, a compensation transmission assembly is provided between the reciprocating drive seat and each of the reciprocating seats. Each compensation transmission assembly includes a first transmission member and a second transmission member. The first transmission member is connected to the reciprocating drive seat, and the second transmission member is connected to the corresponding reciprocating seat. The first transmission member and the second transmission member slide in cooperation along the pressing direction of the corresponding grinding block assembly and limit each other along the length direction of the groove, so as to transmit the reciprocating displacement of the reciprocating drive seat to the corresponding reciprocating seat.

[0014] Preferably, the device further includes a detection and control component for detecting the adaptive displacement generated by the floating transmission member along the arrangement direction of the two grinding block assemblies, and for being controlled and connected to at least one of the loading mechanism and the driving mechanism, so as to perform at least one operation of controlling the loading mechanism to unload and controlling the driving mechanism to stop running when the adaptive displacement exceeds a preset range.

[0015] The advantages of this invention compared to the prior art are: 1. This invention applies a loading action to a floating transmission component through a loading mechanism. The floating transmission component simultaneously drives two grinding block assemblies to move towards the corresponding groove. When one of the grinding block assemblies experiences a large reaction force due to the groove position, machining allowance, or wear difference of the grinding blocks, this reaction force can cause the floating transmission component to produce an adaptive displacement along the arrangement direction of the two grinding block assemblies. This allows the grinding block assembly with less force to continue moving towards the corresponding groove and reduces the difference in the clamping state between the two grinding block assemblies. At the same time, the transmission connection between the driving mechanism and the grinding block assembly allows the grinding block assembly to move relative to the driving mechanism along the clamping direction. This ensures that the adaptive clamping adjustment of the two grinding block assemblies does not interrupt the high-frequency reciprocating power transmission along the groove length direction, thereby improving the consistency of the grinding removal amount and surface finish of the two grooves.

[0016] 2. Each grinding block assembly of the present invention includes a clamping seat, a reciprocating seat, and a grinding block. By moving the clamping seat along the clamping direction, the grinding block can move closer to or further away from the corresponding groove. By moving the reciprocating seat relative to the clamping seat along the length direction of the groove, the grinding block can perform high-frequency reciprocating grinding on the basis of the established clamping state. The structure distributes the clamping adjustment motion and the high-frequency reciprocating motion of the grinding block assembly to different moving parts, reducing the mutual interference between the two motion directions, and keeping the moving mass of the parts participating in the high-frequency reciprocating motion small. This helps to reduce the inertial load generated by high-frequency reversal, and allows the grinding block to maintain a stable reciprocating processing state while adapting to the difference in groove position.

[0017] 3. The present invention guides the clamping seat by means of a first guide portion extending along the clamping direction and guides the reciprocating seat by means of a second guide portion extending along the groove length direction, so that the clamping seat and the reciprocating seat move stably along their respective corresponding motion directions. The first guide portion can limit the clamping seat from moving or deflecting along the groove length direction when the grinding block assembly is pressed, and the second guide portion can limit the reciprocating seat from shaking along the clamping direction during high-frequency reversal, thereby improving the stability of the clamping position and reciprocating trajectory of the grinding block, and further reducing the possibility of local uneven grinding of the grinding block and uneven grinding state of the groove surface. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a linear slider internal groove forming grinding device during the processing of a linear slider.

[0019] Figure 2 This is a front view of a linear slider internal groove forming grinding device.

[0020] Figure 3 This is a three-dimensional structural diagram of a linear slider internal groove forming grinding device.

[0021] Figure 4 This is a three-dimensional structural diagram of the loading mechanism, driving mechanism, and two grinding block assemblies in a linear slider internal groove forming grinding device.

[0022] Figure 5 This is a schematic diagram of the internal structure of the mounting frame in a linear slider internal groove forming grinding device.

[0023] Figure 6 This is a three-dimensional structural diagram of the drive mechanism and two grinding block assemblies in a linear slider internal groove forming grinding device.

[0024] Figure 7 This is a partial three-dimensional structural diagram of the clamping seat, drive mechanism, and two grinding block assemblies in a linear slider internal groove forming grinding device.

[0025] Figure 8 This is a three-dimensional structural diagram of the drive mechanism and two grinding block assemblies in a linear slider internal groove forming grinding device.

[0026] Figure 9 This is a three-dimensional structural diagram of a floating transmission component and a clamping seat in a linear slider internal groove forming grinding device.

[0027] Figure 10 This is a three-dimensional structural diagram of the mounting frame and loading mechanism in a linear slider internal groove forming grinding device.

[0028] The diagram is labeled as follows: 1. Mounting bracket; 11. Loading mechanism; 111. Cylinder; 112. Mounting plate; 113. Loading guide structure; 114. Pressure control assembly; 12. Drive mechanism; 121. Rotary drive component; 122. Eccentric component; 123. Connecting rod; 124. Reciprocating drive seat; 125. Compensating transmission assembly; 1251. First transmission component; 1252. Second transmission component; 13. Grinding block assembly; 131. Grinding block; 132. Clamping seat; 1321. First guide part; 133. Reciprocating seat; 1331. Second guide part; 134. Follower part; 1341. Rolling component; 14. Floating transmission component; 141. Transmission part; 1411. Guide groove; 15. Detection and control assembly; 2. Linear slider; 21. Groove. Detailed Implementation

[0029] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1 to 4 , Figure 9 and Figure 10As shown: A linear slider internal groove forming grinding device includes a mounting frame 1, on which a loading mechanism 11, a driving mechanism 12, and two opposing grinding block assemblies 13 are mounted. Each grinding block assembly 13 includes a grinding block 131 for contacting grooves 21 on two opposing inner walls of the linear slider 2, and is movable relative to the mounting frame 1 along a pressing direction approaching or away from the corresponding groove 21. The loading mechanism 11 is driven by a floating transmission member 14, which is driven by the two grinding block assemblies 13, and is used to... Under the action, the two grinding block assemblies 13 are driven to move towards the corresponding grooves 21 respectively, and the floating transmission component 14 can generate adaptive displacement along the arrangement direction of the two grinding block assemblies 13 according to the force difference of the two grinding block assemblies 13; the drive mechanism 12 is connected to the two grinding block assemblies 13 and is used to drive the grinding blocks 131 in the two grinding block assemblies 13 to perform high-frequency reciprocating motion along the length direction of the groove 21. The transmission connection between the drive mechanism 12 and the two grinding block assemblies 13 allows the two grinding block assemblies 13 to generate relative displacement with respect to the drive mechanism 12 along the corresponding pressing direction.

[0031] Mounting bracket 1 is used to support loading mechanism 11, driving mechanism 12 and two grinding block assemblies 13. The two grinding block assemblies 13 are arranged opposite to each other and correspond to the grooves 21 on the two opposite inner walls of the linear slider 2. Each grinding block assembly 13 has a grinding block 131. The working surfaces of the two grinding blocks 131 face the corresponding grooves 21 respectively. The two grinding block assemblies 13 can move along the pressing direction that is close to or away from the corresponding grooves 21 respectively, and the moving directions of the two grinding block assemblies 13 when they are close to the corresponding grooves 21 are opposite to each other.

[0032] Before processing, the linear slider 2 is placed in the processing position, so that the two grinding block assemblies 13 extend into the linear slider 2 and the two grinding blocks 131 are respectively opposite to the corresponding grooves 21. At this time, a certain initial gap can be maintained between the two grinding blocks 131 and the corresponding grooves 21 to avoid the linear slider 2 colliding with the grinding blocks 131 during the process of entering the processing position.

[0033] After the linear slider 2 reaches the processing position, the loading mechanism 11 begins to apply a loading action to the floating transmission component 14. The floating transmission component 14 transmits the motion and force provided by the loading mechanism 11 to the two grinding block assemblies 13 respectively. Driven by the floating transmission component 14, the two grinding block assemblies 13 move outward along the corresponding pressing direction respectively. As the two grinding block assemblies 13 continue to move, the two grinding blocks 131 gradually approach each other and contact the corresponding grooves 21 respectively.

[0034] When the positions and machining allowances of the two grooves 21 are close, the two grinding blocks 131 can contact the corresponding grooves 21 at approximately the same time. The loading mechanism 11 continues to apply a loading action to the two grinding block assemblies 13 through the floating transmission component 14, causing the two grinding blocks 131 to press against the surface of the corresponding grooves 21 respectively, forming the contact pressure required for machining. Due to possible dimensional deviations in the linear slider 2 during pre-processing and heat treatment, the actual positions of the two grooves 21 may not be the same. After continuous use, the two grinding blocks 131 may also... Because they have different wear amounts, during actual loading, one of the grinding blocks 131 may contact the corresponding groove 21 before the other grinding block 131. When one of the grinding blocks 131 contacts the corresponding groove 21 first, the groove 21 will exert a reaction force on the corresponding grinding block assembly 13. This reaction force is transmitted to the floating transmission member 14 through the grinding block assembly 13. At this time, the reaction forces exerted by the two grinding block assemblies 13 on the floating transmission member 14 are different in magnitude, and the floating transmission member 14 is subjected to an unbalanced action along the arrangement direction of the two grinding block assemblies 13.

[0035] The floating transmission member 14 can generate adaptive displacement along the arrangement direction of the two grinding block assemblies 13. When there is a difference in the reaction forces on both sides, the floating transmission member 14 moves slightly in the direction that can reduce the force difference on both sides. After the position of the floating transmission member 14 changes, the pressing displacement of the floating transmission member 14 to the two grinding block assemblies 13 also changes accordingly. The grinding block assembly 13 that first contacts the groove 21 is blocked by the corresponding groove 21, and its displacement to continue moving outward is limited. The grinding block assembly 13 on the other side can still continue to approach the corresponding groove 21 under the action of the floating transmission member 14 until the other grinding block 131 also contacts the groove 21. The corresponding grooves 21 form contact, so the two grinding block assemblies 13 do not need to have the same clamping displacement to adapt to the actual positions of the two grooves 21 respectively. The adaptive displacement of the floating transmission member 14 is mainly used to coordinate the clamping state of the two grinding block assemblies 13. After the floating transmission member 14 makes a slight movement, it can reduce the amount of clamping that continues to increase on the side that makes contact first, while reserving space for the side that makes contact later to continue to move. This structure can reduce the possibility that one grinding block 131 bears a large clamping force and the other grinding block 131 has insufficient contact, so that the two grinding blocks 131 maintain a relatively stable contact with the corresponding grooves 21 respectively.

[0036] After the two grinding blocks 131 establish contact with the corresponding grooves 21, the drive mechanism 12 transmits reciprocating power along the length of the grooves 21 to the two grinding block assemblies 13. Under the action of the drive mechanism 12, the grinding blocks 131 in the two grinding block assemblies 13 perform high-frequency reciprocating motion along the length of the grooves 21. During its reciprocating motion, the grinding block 131 repeatedly passes over the surface of the groove 21. Through the relative friction between the grinding block 131 and the groove 21, the surface of the groove 21 is ground. The working surface of the grinding block 131 can be set to a shape that matches the target cross-sectional contour of the groove 21. For example, when the cross-section of the groove 21 is arc-shaped, the working surface of the grinding block 131 can be set as a corresponding arc surface; when the groove 21 has multiple continuous curved surfaces, the working surface of the grinding block 131 can be set as a corresponding composite arc surface. When the grinding block 131 performs high-frequency reciprocating motion, the working surface of the grinding block 131 can repeatedly act on the local high points and small allowances on the surface of the groove 21, thereby improving the surface condition and contour consistency of the groove 21. The drive mechanism 12 and the grinding block assembly 1... The transmission connection between the two components maintains a power transmission relationship along the length of the groove 21. When the drive mechanism 12 outputs reciprocating power along the length of the groove 21, it can drive the grinding block 131 to perform high-frequency reciprocating motion. At the same time, this transmission connection retains space for relative movement in the pressing direction of the grinding block assembly 13, allowing the grinding block assembly 13 to move closer to or further away from the corresponding groove 21 relative to the drive mechanism 12. Therefore, when the floating transmission component 14 adjusts the pressing position of the two grinding block assemblies 13 according to the force difference, the displacement of the grinding block assembly 13 along the pressing direction will not cut off the reciprocating power provided by the drive mechanism 12. When the drive mechanism 12 drives the grinding block 131 to reciprocate at high frequency, it will not fix the grinding block assembly 13 in a single pressing position. The position adjustment in the pressing direction and the high-frequency reciprocating motion along the length of the groove 21 can be performed simultaneously.

[0037] In terms of the operation sequence, the loading mechanism 11 can first drive the two grinding block assemblies 13 to approach the corresponding groove 21. After the two grinding blocks 131 establish contact with the corresponding groove 21 and form the required loading state, the driving mechanism 12 can be started to make the two grinding blocks 131 perform high-frequency reciprocating motion. After the processing is completed, the driving mechanism 12 can be stopped first to make the two grinding blocks 131 stop reciprocating motion, and then the loading mechanism 11 can release the load to make the two grinding block assemblies 13 move away from the corresponding groove 21. This operation sequence can reduce the impact caused by the grinding blocks 131 suddenly contacting or suddenly leaving the groove 21 in the high-frequency reciprocating state.

[0038] like Figures 3 to 8 As shown: The grinding block assembly 13 also includes a clamping seat 132 and a reciprocating seat 133. The clamping seat 132 is slidably disposed on the mounting frame 1 along the clamping direction, and the reciprocating seat 133 is slidably disposed on the clamping seat 132 along the length direction of the groove 21. The grinding block 131 is disposed on the reciprocating seat 133.

[0039] Each grinding block assembly 13 includes a clamping seat 132, a reciprocating seat 133, and a grinding block 131. The clamping seat 132 is responsible for adjusting the clamping of the grinding block 131 as it moves closer to or further away from the groove 21. The reciprocating seat 133 is responsible for the high-frequency reciprocating motion of the grinding block 131 along the length of the groove 21. By distributing the clamping motion and the reciprocating motion to two relatively independent moving parts, the clamping seat 132 and the reciprocating seat 133, the motions in the two directions can be made non-substitutable. The clamping seat 132 changes the grinding block under the action of the floating transmission component 14. The normal position of 131 relative to the groove 21 enables the grinding block 131 to establish and maintain grinding pressure; the reciprocating seat 133 moves along the length of the groove 21 at the clamping position determined by the clamping seat 132, causing the grinding block 131 to repeatedly rub against the surface of the groove 21. Thus, the grinding block 131 can follow the clamping seat 132 to adjust its overall position during high-frequency reciprocating motion, without the entire clamping seat 132 bearing the high-frequency reciprocating inertia at the same time, which helps to reduce the mass and reversing impact of the high-frequency moving parts.

[0040] The grinding block 131 is detachably mounted on the reciprocating seat 133 so that different shapes or different grit sizes of grinding blocks 131 can be replaced according to the specifications of the linear slider 2, the contour of the groove 21 and the processing stage. As a preferred embodiment, the grinding block 131 can be an oilstone grinding block, a resin-bonded grinding block or a metal-bonded grinding block. A relatively large grit grinding block 131 can be used in the rough precision finishing stage, and a relatively small grit grinding block 131 can be used in the surface finishing stage. The grinding block 131 and the reciprocating seat 133 can be connected by a slot, a pressure plate fastening structure or a threaded fastening structure so that the grinding block 131 remains stable during high-frequency reciprocating process, and at the same time facilitates replacement after the grinding block 131 wears out.

[0041] like Figures 3 to 9 As shown: The mounting bracket 1 is provided with a first guide portion 1321 extending along the pressing direction, and the pressing seat 132 is slidably engaged with the first guide portion 1321; the pressing seat 132 is provided with a second guide portion 1331 extending along the length direction of the groove 21, and the reciprocating seat 133 is slidably engaged with the second guide portion 1331.

[0042] The first guide portion 1321 extends along the pressing direction and is used to guide the pressing seat 132 to move in a direction close to or away from the corresponding groove 21; the second guide portion 1331 extends along the length direction of the groove 21 and is used to guide the reciprocating seat 133 to perform high-frequency reciprocating motion on the pressing seat 132. The two guiding directions intersect each other, creating a layered motion relationship between the clamping seat 132 and the reciprocating seat 133. The first guiding part 1321 can adopt a linear guide rail, a guide groove 1411 and a slider, or a guide rod and a guide hole. The second guiding part 1331 can also adopt a linear guide rail, a dovetail guide rail, or a wear-resistant groove. Specifically, the first guiding part 1321 mainly bears the reaction force generated when the grinding block 131 presses against the groove 21, while the second guiding part 1331 mainly bears the alternating inertial force generated by the high-frequency reciprocating motion and the tangential friction force on the surface of the groove 21. Therefore, the first guiding part 1321 and the second guiding part 1331 can be respectively provided with corresponding support lengths and fitting clearances to limit the clamping seat 132 from moving along the length direction of the groove 21 and to limit the reciprocating seat 133 from swinging along the clamping direction, thereby improving the stability of the movement trajectory of the grinding block 131.

[0043] like Figures 4 to 9 As shown: The floating transmission member 14 is provided with two transmission parts 141, and the two grinding block assemblies 13 are respectively provided with follower parts 134. The two transmission parts 141 are respectively connected to the corresponding follower parts 134 for transmission. When the floating transmission member 14 moves along the loading direction of the loading mechanism 11, the two transmission parts 141 drive the two grinding block assemblies 13 to move in opposite pressing directions through the corresponding follower parts 134.

[0044] The two transmission parts 141 on the floating transmission member 14 are respectively connected to the follower parts 134 on the two grinding block assemblies 13. When the floating transmission member 14 moves along the loading direction, the two transmission parts 141 convert the displacement in the loading direction into the displacement of the two grinding block assemblies 13 along the opposite pressing direction. Thus, one loading mechanism 11 can simultaneously provide loading to the two grinding block assemblies 13 and make the two grinding block assemblies 13 move toward the two opposite inner walls of the linear slider 2. The two transmission parts 141 form a common loading relationship with the two follower parts 134. When the actual position or force state of the two grinding block assemblies 13 is different, the floating transmission member 14 can change its own lateral position under the reaction of the two follower parts 134, thereby redistributing the displacement of the two grinding block assemblies 13 while maintaining the loading effect. The transmission part 141 can be an inclined surface, an inclined groove, or a swing force transmission surface. The follower part 134 can be a roller, a slider, or a contact part with a low friction surface to adapt to different installation spaces and force transmission requirements.

[0045] like Figures 4 to 9As shown: the two transmission parts 141 are two guide grooves 1411 provided on the floating transmission member 14, and the two guide grooves 1411 are mirror images of the center line extending along the loading direction on the floating transmission member 14; the two follower parts 134 are rolling elements 1341 rotatably provided on the two grinding block assemblies 13, and each rolling element 1341 is provided in the corresponding guide groove 1411 and rolls with the guide groove 1411.

[0046] Two guide grooves 1411 correspond to two rolling elements 1341 respectively. Each rolling element 1341 is mounted on the corresponding clamping seat 132 via a rotating shaft and can rotate around the rotating shaft. The rolling element 1341 is located inside the corresponding guide groove 1411. The outer peripheral surface of the rolling element 1341 is in contact with the groove wall of the guide groove 1411. When the floating transmission member 14 moves along the loading direction, the inclined groove wall of the guide groove 1411 applies a force to the rolling element 1341. This force can be decomposed into a component force along the loading direction and a component force along the clamping direction. The component force along the clamping direction pushes the clamping seat 132 to move, so that the grinding block 131 is close to the corresponding groove 21.

[0047] The two guide grooves 1411 are mirror images of the centerline of the floating transmission member 14. Therefore, when the floating transmission member 14 moves along the same loading direction, the two rolling elements 1341 are subjected to opposing clamping forces. The left rolling element 1341 drives the left clamping seat 132 to move towards the left groove 21, and the right rolling element 1341 drives the right clamping seat 132 to move towards the right groove 21, thereby achieving synchronous deployment of the two grinding block assemblies 13. The rolling element 1341 can be a rolling bearing, a roller bearing, or a pin roller. When the rolling element 1341 moves along the guide groove 1411, its outer circumferential surface rolls relative to the groove wall, which can reduce the pressure between the guide groove 1411 and the rolling element. The frictional resistance between 1341 allows the floating transmission component 14 to respond more sensitively to the force difference between the two grinding block assemblies 13. The inclination angle of the guide groove 1411 relative to the loading direction determines the conversion relationship between the loading displacement and the clamping displacement. When the output stroke of the loading mechanism 11 is determined, increasing the lateral inclination of the guide groove 1411 can increase the clamping stroke of the grinding block assembly 13; decreasing the lateral inclination of the guide groove 1411 can decrease the clamping stroke and change the force transmission ratio. The inclination angle of the guide groove 1411 can be selected according to the clamping stroke of the grinding block 131, the allowable machining allowance of the groove 21, and the output capacity of the cylinder 111. In one specific embodiment, the guide groove 1411 is a closed long groove. When the cylinder 111 drives the floating transmission member 14 to move along the loading direction, the guide groove 1411 pushes the two rolling members 1341 to move outward. When the cylinder 111 drives the floating transmission member 14 to move in the opposite direction, the other side of the guide groove 1411 drives the two pressing seats 132 to retract inward through the rolling members 1341. With this structure, the unfolding and retraction of the two grinding block assemblies 13 can be actively controlled by the loading mechanism 11.

[0048] like Figures 1 to 5 and Figure 10 As shown: The loading mechanism 11 includes a cylinder 111, a mounting plate 112, and a loading guide structure 113. The cylinder 111 is mounted on the mounting frame 1, and the output end of the cylinder 111 is connected to the mounting plate 112. The mounting plate 112 is slidably mounted on the mounting frame 1 along the loading direction of the loading mechanism 11 through the loading guide structure 113. The floating transmission member 14 is slidably mounted on the mounting plate 112 along the arrangement direction of the two grinding block assemblies 13, so that the floating transmission member 14 moves with the mounting plate 112 along the loading direction and can move relative to the mounting plate 112 along the arrangement direction of the two grinding block assemblies 13.

[0049] The loading mechanism 11 includes a cylinder 111, a mounting plate 112, and a loading guide structure 113. The cylinder 111 applies a driving force along the loading direction to the mounting plate 112. The mounting plate 112 moves on the mounting frame 1 through the loading guide structure 113. The loading guide structure 113 undertakes the guiding and lateral support functions of the mounting plate 112, so that the output end of the cylinder 111 mainly bears the axial load, reducing the degree to which the lateral component force generated when the floating transmission component 14 moves laterally acts directly on the output end of the cylinder 111. The loading guide structure 113 can be a guide rod and linear bearing, a linear guide rail and slider, or a guide column and guide sleeve. When a loading guide structure 113 with double sides or multiple points is used, the anti-overturning ability of the mounting plate 112 during the loading process can be improved, and the loading direction of the floating transmission component 14 on the two grinding block assemblies 13 can be kept stable. The floating transmission component 14 is slidably mounted on the mounting plate 112 along the arrangement direction of the two grinding block assemblies 13, allowing the floating transmission component 14 to move as a whole with the mounting plate 112 along the loading direction, and to move slightly relative to the mounting plate 112 along the arrangement direction of the two grinding block assemblies 13. This arrangement separates the loading motion provided by the cylinder 111 from the force adjustment motion of the floating transmission component 14: the cylinder 111 and the mounting plate 112 are responsible for providing the overall loading displacement and overall loading force, while the floating transmission component 14 makes lateral adjustments based on the difference in reaction forces between the two grinding block assemblies 13. A transverse linear guide, a T-slot and T-slider, or a dovetail slot and dovetail slider can be used between the floating transmission component 14 and the mounting plate 112. As a preferred embodiment, a low-friction bushing or rolling support can also be configured between the floating transmission component 14 and the mounting plate 112, allowing the floating transmission component 14 to generate adaptive displacement under small force differences.

[0050] like Figures 1 to 5 and Figure 10 As shown: The loading mechanism 11 also includes a pressure control component 114 connected to the cylinder 111. The pressure control component 114 is used to detect and adjust the working pressure of the cylinder 111 so that the loading force applied by the cylinder 111 to the floating transmission member 14 through the mounting plate 112 is kept within a preset range.

[0051] The pressure control component 114 is used to obtain the working pressure of the cylinder 111 and adjust the gas pressure entering the cylinder 111 according to the obtained working pressure. After the effective piston area of ​​the cylinder 111 is determined, the output force of the cylinder 111 mainly changes with the working pressure. Therefore, by adjusting the working pressure of the cylinder 111, the overall loading force applied to the two grinding block assemblies 13 by the mounting plate 112 and the floating transmission component 14 can be adjusted. At the start of processing, the pressure control component 114 causes the cylinder 111 to push the mounting plate 112 to move with a preset pressure. When the two grinding blocks 131 contact the corresponding grooves 21, the working pressure of the cylinder 111 gradually increases. After the pressure control component 114 detects that the working pressure has reached the preset range, it limits the cylinder 111 from continuing to pressurize, so that the two grinding blocks 131 are processed in the corresponding loading state.

[0052] During processing, when the local high point of the groove 21 causes a short-term increase in the reaction force on the grinding block assembly 13, the output end of the cylinder 111 can produce a small amount of retraction. The pressure control assembly 114 adjusts the air supply state according to the change in the working pressure of the cylinder 111 to keep the overall loading force within a preset range, reducing the possibility that the grinding block 131 will bear excessive load at the local high point. As a preferred embodiment, the pressure control assembly 114 may include a pressure detection element, a pressure regulating element, and a control unit. The pressure detection element may be a gas pressure sensor, a pressure transmitter, or a force sensor installed on the loading force transmission path. The pressure regulating element may be a proportional pressure regulating valve, an electro-proportional valve, or an electrically controlled pressure reducing valve. The control unit compares the detected value with a preset pressure range. When the detected value is lower than the preset lower limit, the control unit increases the working pressure of the cylinder 111. When the detected value is higher than the preset upper limit, the control unit reduces the working pressure of the cylinder 111 or controls the cylinder 111 to release pressure appropriately.

[0053] like Figures 2 to 8 As shown: The drive mechanism 12 includes a rotary drive component 121, an eccentric component 122, a connecting rod 123 and a reciprocating drive seat 124. The eccentric component 122 is connected to the rotary drive component 121 in a transmission manner. The two ends of the connecting rod 123 are rotatably connected to the eccentric component 122 and the reciprocating drive seat 124 respectively. The reciprocating drive seat 124 is slidably disposed on the mounting frame 1 along the length direction of the groove 21 and is connected to the two reciprocating seats 133 in a transmission manner respectively.

[0054] The drive mechanism 12 converts continuous rotational motion into high-frequency reciprocating motion along the length of the groove 21 through a rotary drive 121, an eccentric member 122, a connecting rod 123, and a reciprocating drive seat 124. The rotary drive 121 drives the eccentric member 122 to rotate. Since the connection position between the eccentric member 122 and the connecting rod 123 is off-center from the rotation center of the eccentric member 122, for every revolution of the eccentric member 122, the connecting rod 123 pushes the reciprocating drive seat 124 to complete one reciprocating stroke. The eccentricity of the eccentric member 122... The distance determines the reciprocating stroke of the reciprocating drive seat 124, and the rotational speed of the rotary drive component 121 determines the reciprocating frequency. Therefore, the high-frequency reciprocating parameters can be adjusted according to the length of the groove 21, the material of the grinding block 131, and the expected surface quality. The rotary drive component 121 can be a servo motor, a variable frequency motor, or a pneumatic motor. The eccentric component 122 can be an eccentric wheel, a crank disc, or an adjustable eccentric shaft. When an adjustable eccentric structure is used, the reciprocating stroke of the grinding block 131 can be adjusted by changing the eccentricity. The reciprocating drive seat 124 is slidably mounted on the mounting frame 1 along the length of the groove 21 and is connected to the two reciprocating seats 133 respectively, so that one drive mechanism 12 can transmit high-frequency reciprocating motion to the two grinding blocks 131 at the same time. The reciprocating direction and frequency of the two grinding blocks 131 are consistent, which helps to reduce the asynchronous phenomenon generated when the two grinding block assemblies 13 are driven separately. The reciprocating drive seat 124 can be mounted on the mounting frame 1 by a linear guide rail, a roller guide rail or a sliding guide structure. The mounting frame 1 can also be configured with a buffer component to limit the maximum stroke of the reciprocating drive seat 124. As a preferred embodiment, the start and stop state of the rotary drive 121 can form a control interlock with the loading state of the loading mechanism 11, so that the rotary drive 121 is started after the two grinding blocks 131 reach the preset loading state, and the rotary drive 121 is stopped before the loading mechanism 11 releases the load, thereby reducing the possibility of the grinding blocks 131 impacting the edge of the groove 21 under no-load conditions.

[0055] like Figures 2 to 8 As shown: A compensation transmission assembly 125 is provided between the reciprocating drive seat 124 and each reciprocating seat 133. Each compensation transmission assembly 125 includes a first transmission member 1251 and a second transmission member 1252. The first transmission member 1251 is connected to the reciprocating drive seat 124, and the second transmission member 1252 is connected to the corresponding reciprocating seat 133. The first transmission member 1251 and the second transmission member 1252 slide in the pressing direction of the corresponding grinding block assembly 13 and limit each other in the length direction of the groove 21 so as to transmit the reciprocating displacement of the reciprocating drive seat 124 to the corresponding reciprocating seat 133.

[0056] Each compensation transmission assembly 125 is disposed between the reciprocating drive seat 124 and the corresponding reciprocating seat 133. The compensation transmission assembly 125 is essentially a transmission link that can extend or shorten along the pressing direction of the grinding block assembly 13. When the reciprocating drive seat 124 moves along the length direction of the groove 21, the compensation transmission assembly 125 transmits the reciprocating displacement to the corresponding reciprocating seat 133. One end of the first transmission member 1251 is connected to the reciprocating drive seat 124, and the other end of the first transmission member 1251 is slidably engaged with the second transmission member 1252. One end of the second transmission member 1252 is connected to the first transmission member 1251. In a sliding fit, the other end of the second transmission member 1252 is connected to the corresponding reciprocating seat 133. The sliding direction of the first transmission member 1251 and the second transmission member 1252 is parallel to the pressing direction of the corresponding grinding block assembly 13. When the pressing seat 132 drives the reciprocating seat 133 to approach the corresponding groove 21, the distance between the reciprocating seat 133 and the reciprocating drive seat 124 along the pressing direction changes. The first transmission member 1251 and the second transmission member 1252 change the extension length of the compensation transmission assembly 125 through relative sliding, thereby adapting to the change in the pressing position of the reciprocating seat 133. The two grinding block assemblies 13 can have different... Due to the compression displacement, the two compensating transmission components 125 can also have different extension and retraction amounts. Although the first transmission component 1251 and the second transmission component 1252 can slide relative to each other along the compression direction, they are mutually limited along the length direction of the groove 21. When the reciprocating drive seat 124 moves forward along the length direction of the groove 21, the first transmission component 1251 pushes the second transmission component 1252 through the mating side, and the second transmission component 1252 then pushes the reciprocating seat 133 forward. When the reciprocating drive seat 124 moves in the opposite direction, the first transmission component 1251 drives the second transmission component 1252 and the second transmission component 1252 through another mating side. The reciprocating seat 133 moves in the opposite direction. In one specific embodiment, the first transmission member 1251 is a rectangular insert rod, and the second transmission member 1252 is a rectangular sleeve that slides with the rectangular insert rod. The rectangular insert rod can slide along the axial direction of the rectangular sleeve, which is consistent with the pressing direction. The side of the rectangular insert rod and the inner side of the rectangular sleeve abut against each other along the length of the groove 21, thus transmitting high-frequency reciprocating force. In other embodiments, the first transmission member 1251 and the second transmission member 1252 can also adopt a spline rod and spline sleeve, a keyed slide rod and guide sleeve, or a slider and elongated guide groove.

[0057] like Figures 1 to 4 As shown: The device also includes a detection and control component 15, which is used to detect the adaptive displacement generated by the floating transmission component 14 along the arrangement direction of the two grinding block components 13, and is controlled to be connected to at least one of the loading mechanism 11 and the driving mechanism 12, so as to perform at least one operation of controlling the loading mechanism 11 to release the load and controlling the driving mechanism 12 to stop running when the adaptive displacement exceeds a preset range.

[0058] The detection and control component 15 is used to acquire the lateral position of the floating transmission component 14 relative to the mounting plate 112. After the initial adjustment of the equipment, the position of the floating transmission component 14 when it is located in the middle of the mounting plate 112 can be set as the reference position. During the processing, the detection and control component 15 continuously detects the displacement and direction of the floating transmission component 14 relative to the reference position. When there is only a positional difference or machining allowance difference between the two grooves 21 within the normal range, the floating transmission component 14 will make adaptive displacement within the allowable range. When one of the grinding block components 13 is stuck, the linear slider 2 is misaligned, the groove 21 is abnormally sized, or the wear difference between the two grinding blocks 131 is too large, the force difference between the two grinding block components 13 may continue to increase, and the lateral displacement of the floating transmission component 14 relative to the mounting plate 112 will also increase accordingly. The detection and control component 15 will compare the detected lateral displacement with the actual displacement. By comparing preset ranges, when the lateral displacement reaches the first preset value, the detection control component 15 can control the pressure control component 114 to reduce the working pressure of the cylinder 111. When the lateral displacement continues to increase and reaches the second preset value, the detection control component 15 controls the drive mechanism 12 to stop running and controls the loading mechanism 11 to release the load, so that the two grinding blocks 131 stop reciprocating and move away from the corresponding groove 21. As a preferred embodiment, the detection control component 15 can adopt a linear displacement sensor, a magnetic position sensor, a proximity switch, or a photoelectric detection component. When a linear displacement sensor is adopted, the displacement of the floating transmission component 14 can be continuously acquired. When a proximity switch or a photoelectric detection component is adopted, limit detection positions can be set on both sides of the floating transmission component 14 to determine whether the floating transmission component 14 exceeds the allowable adaptive displacement range.

[0059] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A linear slider internal groove forming grinding device, comprising a mounting bracket (1), characterized in that, The mounting bracket (1) is provided with a loading mechanism (11), a driving mechanism (12) and two opposing grinding block assemblies (13). The two grinding block assemblies (13) each include grinding blocks (131) for contacting grooves (21) on two opposite inner walls of the linear slider (2), and are movable relative to the mounting bracket (1) in a pressing direction toward or away from the corresponding grooves (21); The loading mechanism (11) is connected to a floating transmission component (14), which is in transmission cooperation with the two grinding block assemblies (13) respectively. It is used to drive the two grinding block assemblies (13) to move towards the corresponding groove (21) under the action of the loading mechanism (11). The floating transmission component (14) can generate adaptive displacement along the arrangement direction of the two grinding block assemblies (13) according to the force difference of the two grinding block assemblies (13). The drive mechanism (12) is connected to the two grinding block assemblies (13) for driving the grinding blocks (131) in the two grinding block assemblies (13) to perform high-frequency reciprocating motion along the length direction of the groove (21). The drive mechanism (12) and the two grinding block assemblies (13) allow the two grinding block assemblies (13) to generate relative displacement with respect to the drive mechanism (12) along the corresponding pressing direction.

2. The linear slider internal groove forming grinding device according to claim 1, characterized in that, The grinding block assembly (13) further includes a clamping seat (132) and a reciprocating seat (133). The clamping seat (132) is slidably disposed on the mounting bracket (1) along the clamping direction. The reciprocating seat (133) is slidably disposed on the clamping seat (132) along the length direction of the groove (21). The grinding block (131) is disposed on the reciprocating seat (133).

3. The linear slider internal groove forming grinding device according to claim 2, characterized in that, The mounting bracket (1) is provided with a first guide portion (1321) extending along the pressing direction, and the pressing seat (132) is slidably engaged with the first guide portion (1321); the pressing seat (132) is provided with a second guide portion (1331) extending along the length direction of the groove (21), and the reciprocating seat (133) is slidably engaged with the second guide portion (1331).

4. The linear slider internal groove forming grinding device according to claim 1, characterized in that, The floating transmission member (14) is provided with two transmission parts (141), and the two grinding block assemblies (13) are respectively provided with follower parts (134). The two transmission parts (141) are respectively connected to the corresponding follower parts (134) for transmission. When the floating transmission member (14) moves along the loading direction of the loading mechanism (11), the two transmission parts (141) drive the two grinding block assemblies (13) to move in opposite pressing directions through the corresponding follower parts (134).

5. The linear slider internal groove forming grinding device according to claim 4, characterized in that, The two transmission parts (141) are two guide grooves (1411) disposed on the floating transmission member (14), and the two guide grooves (1411) are mirror images of the center line extending along the loading direction on the floating transmission member (14); the two follower parts (134) are rolling elements (1341) rotatably disposed on the two grinding block assemblies (13), and each rolling element (1341) is disposed in the corresponding guide groove (1411) and rolls with the guide groove (1411).

6. The linear slider internal groove forming grinding device according to claim 1, characterized in that, The loading mechanism (11) includes a cylinder (111), a mounting plate (112), and a loading guide structure (113). The cylinder (111) is mounted on the mounting frame (1), and the output end of the cylinder (111) is connected to the mounting plate (112). The mounting plate (112) is slidably mounted on the mounting frame (1) along the loading direction of the loading mechanism (11) via the loading guide structure (113). The floating transmission member (14) is slidably mounted on the mounting plate (112) along the arrangement direction of the two grinding block assemblies (13), so that the floating transmission member (14) moves with the mounting plate (112) along the loading direction and can move relative to the mounting plate (112) along the arrangement direction of the two grinding block assemblies (13).

7. The linear slider internal groove forming grinding device according to claim 6, characterized in that, The loading mechanism (11) further includes a pressure control component (114) connected to the cylinder (111). The pressure control component (114) is used to detect and adjust the working pressure of the cylinder (111) so that the loading force applied by the cylinder (111) to the floating transmission member (14) through the mounting plate (112) is kept within a preset range.

8. The linear slider internal groove forming grinding device according to claim 2, characterized in that, The drive mechanism (12) includes a rotary drive (121), an eccentric component (122), a connecting rod (123), and a reciprocating drive seat (124). The eccentric component (122) is connected to the rotary drive (121) in a transmission manner. The two ends of the connecting rod (123) are rotatably connected to the eccentric component (122) and the reciprocating drive seat (124) respectively. The reciprocating drive seat (124) is slidably disposed on the mounting frame (1) along the length direction of the groove (21) and is connected to the two reciprocating seats (133) in a transmission manner.

9. The linear slider internal groove forming grinding device according to claim 8, characterized in that, A compensation transmission assembly (125) is provided between the reciprocating drive seat (124) and each of the reciprocating seats (133). Each compensation transmission assembly (125) includes a first transmission member (1251) and a second transmission member (1252). The first transmission member (1251) is connected to the reciprocating drive seat (124), and the second transmission member (1252) is connected to the corresponding reciprocating seat (133). The first transmission member (1251) and the second transmission member (1252) slide in cooperation along the pressing direction of the corresponding grinding block assembly (13) and limit each other along the length direction of the groove (21) so as to transmit the reciprocating displacement of the reciprocating drive seat (124) to the corresponding reciprocating seat (133).

10. A linear slider internal groove forming grinding device according to claim 6, characterized in that, It also includes a detection control component (15) for detecting the adaptive displacement generated by the floating transmission component (14) along the arrangement direction of the two grinding block assemblies (13), and is controlled to be connected to at least one of the loading mechanism (11) and the driving mechanism (12) to perform at least one operation of controlling the loading mechanism (11) to release the load and controlling the driving mechanism (12) to stop running when the adaptive displacement exceeds a preset range.

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