Sliding block grinding machine

Abstract

The utility model relates to a sliding block grinding machine which comprises a base. A workpiece mounting seat is connected to the base in a sliding manner; a first driving motor for driving the workpiece mounting seat to move along a first direction is arranged on the base; a grinding mounting seat is fixedly arranged on the base; the workpiece mounting seat is arranged in the middle hollow area of the grinding mounting seat; a first grinding part and a second grinding part which can move in the second direction are connected to the grinding installation base in a sliding mode. The first grinding part and the second grinding part are in sliding connection with a second linear guide rail on the grinding mounting seat; the first grinding part and the second grinding part are each provided with a grinding assembly capable of moving in the third direction. And a second driving motor for driving the first grinding part to move and a third driving motor for driving the second grinding part to move are arranged on the grinding mounting seat. The workpiece mounting base moves in the X direction, the grinding assembly moves in the Y direction and the Z direction, and tasks of all moving shafts are relatively independent and simple. In this way, error accumulation is reduced, and precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to slider grinding machine field especially relates to a slider grinding machine. BACKGROUND

[0002] The grinder of linear guide rail slider usually does not move the base, utilizes the multidirectional movement of grinding head to realize the grinding of slider, when the grinding head needs multidirectional movement to grind the slider, since there can be certain positioning error in each movement axis, with the complexity of the movement path of the grinding head increasing, these errors will gradually accumulate. For example, when grinding the multiple sides and curved surfaces of the slider, the grinding head moves along the X, Y, Z axis direction multiple times, the slight positioning error generated each time will be superimposed in the subsequent grinding process, resulting in the size precision and shape precision of the finally ground slider being affected. This cumulative error can make the flatness, straightness and other precision indexes of the slider exceed the allowable range, unable to meet the requirements of high-precision linear guide rail sliders. In order to realize the multidirectional movement of the grinding head, the structure of the grinder in the prior art is relatively complex, including multiple movement components and transmission mechanisms. For example, high-precision guide rails, screws, motors and the like are needed to drive the grinding head to move in different directions. These complex structures are more prone to wear, looseness and other problems during long-term use. In particular, the guide rails and screws are key components for ensuring the accurate movement of the grinding head, and once they are worn, the positioning accuracy of the grinding head will be directly affected. Moreover, the complex structure also makes the equipment less stable when subjected to external interference (such as workshop vibration, temperature change, etc.), increasing the difficulty and cost of maintenance. SUMMARY

[0003] In order to solve the above problems of the prior art, the utility model provides a slider grinding machine.

[0004] In order to achieve the above purpose, the utility model adopts the main technical scheme including:

[0005] A slider grinding machine, comprising a base; a workpiece mounting seat is slidably connected to the base; a first driving motor is arranged on the base to drive the workpiece mounting seat to move in a first direction; a grinding mounting seat is fixedly arranged on the base; the workpiece mounting seat is arranged in a hollow area in the middle of the grinding mounting seat; a first grinding part and a second grinding part which can move in a second direction are slidably connected to the grinding mounting seat; the first grinding part and the second grinding part are both slidably connected to the second linear guide rail on the grinding mounting seat; a grinding assembly which can move in a third direction is arranged on the first grinding part and the second grinding part; a second driving motor is arranged on the grinding mounting seat to drive the first grinding part to move, and a third driving motor is arranged on the grinding mounting seat to drive the second grinding part to move.

[0006] Further, the base is provided with a first linear guide rail; the workpiece mounting seat is slidably connected with the first linear guide rail through a sliding block; a first screw rod is connected with the output shaft of the first driving motor; the first screw rod is connected with the workpiece mounting seat to drive the workpiece mounting seat to move in the first direction.

[0007] Further, the workpiece mounting seat is used for fixing the workpiece to be processed through an electromagnet.

[0008] Further, a second screw rod is connected with the output shaft of the second driving motor; the second screw rod is connected with the first grinding part to drive the first grinding part to move in the second direction; a third screw rod is connected with the output shaft of the third driving motor; the third screw rod is connected with the second grinding part to drive the second grinding part to move in the second direction; the second screw rod and the third screw rod are coaxially arranged.

[0009] Further, the first grinding part comprises a first connecting seat; the first connecting seat is slidably connected with the second linear guide rail; the first connecting seat is provided with a first grinding assembly and a second grinding assembly; the first connecting seat is provided with a first lifting motor for driving the first grinding assembly and the second grinding assembly to move in the third direction synchronously.

[0010] Further, the second grinding part comprises a second connecting seat; the second connecting seat is slidably connected with the second linear guide rail; the second connecting seat is provided with a third grinding assembly; the second connecting seat is provided with a second lifting motor for driving the third grinding assembly to move in the third direction.

[0011] The workpiece mounting seat moves in the X direction, the grinding assembly moves in the Y and Z directions, and the tasks of the movement axes are relatively independent and simple. Compared with the traditional complex movement of the grinding head in multiple directions, this mode reduces error accumulation. For example, when grinding different surfaces such as the side surface and the top surface of the sliding block, the workpiece mounting seat is responsible for the translation in the X direction, can more accurately send different parts of the sliding block to the appropriate position below the grinding head, and the grinding head only needs to perform accurate vertical and horizontal grinding actions in the Y and Z directions. In this way, the positioning error of each axis will not be continuously added in the complex multi-directional movement as in the traditional way, thereby effectively improving the size accuracy and shape accuracy of the sliding block, and making it easier to control the accuracy indicators such as flatness and straightness within the allowable range. Since the movement of each axis is relatively independent, it is also more convenient to perform precision calibration and compensation. For example, through the separate calibration of the X direction movement of the workpiece mounting seat, the position accuracy of the sliding block in the horizontal direction can be ensured; the calibration of the grinding assembly in the Y and Z directions focuses on the accuracy control in the vertical and depth directions, which is beneficial to improve the overall grinding accuracy.

[0012] The movement mode of the grinding assembly is simplified, and the movement of the grinding assembly in Y and Z directions is more stable. Because the complex multi-directional simultaneous movement and frequent direction conversion are reduced, the possibility of generating vibration is reduced. For example, when the surface of the sliding block is finely ground, the grinding assembly grinds in Y and Z directions at a stable speed and feed amount, and vibration does not occur due to the complex movement path, so that the ground surface is smoother, and the surface roughness is effectively reduced. Moreover, the stable movement mode is beneficial to maintaining the uniformity of the grinding force, and avoids the situation of local excessive grinding or insufficient grinding caused by the dynamic accuracy problem of the grinding head, and is especially suitable for grinding of the high-precision linear guide sliding block. Further, the movement of the grinding assembly in the Z direction generally tends to move to a suitable height and does not change in subsequent grinding, so as to further simplify the grinding movement and improve the accuracy.

[0013] The grinding mounting seat is provided with a plurality of grinding parts, so that synchronous grinding of the inner side and the outer side of the sliding block can be realized, and the processing efficiency is improved.

[0014] The grinding mounting seat is supported on both sides of the workpiece mounting seat, so that the stability of the product can be effectively improved, the equipment deformation caused by the change of the center of gravity when the first grinding part and the second grinding part move is reduced, and the processing accuracy is ensured.

[0015] The first grinding part and the second grinding part share a second linear guide rail, and the second screw rod and the third screw rod are coaxially arranged, so as to ensure the consistency of the displacement of the first grinding part and the second grinding part, and facilitate accurate control of the processing consistency between different grinding equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 is a structural perspective view of the present application;

[0018] Explanation of reference signs:

[0019] 100, Base; 110, First drive motor; 111, First lead screw; 120, First linear guide rail; 130, Workpiece mounting seat; 140, Workpiece to be processed; 200, Grinding mounting seat; 210, First grinding section; 211, First connecting seat; 212, First lifting motor; 213, First grinding assembly; 214, Second grinding assembly; 220, Second grinding section; 221, Second connecting seat; 222, Second lifting motor; 223, Third grinding assembly; 230, Second linear guide rail; 240, Second drive motor; 241, Second lead screw; 250, Third drive motor; 251, Third lead screw. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] An embodiment is shown as follows: Figure 1

[0024] The first direction is parallel to the X direction, the second direction is parallel to the Y direction, and the third direction is parallel to the Z direction. For convenience of description, the first direction can also be referred to as the X direction, the second direction can also be referred to as the Y direction, and the third direction can also be referred to as the Z direction.

[0025] A sliding block grinding machine comprises a base 100; a workpiece mounting seat 130 is slidably connected to the base 100; a first driving motor 110 is arranged on the base 100 to drive the workpiece mounting seat 130 to move along the X direction; a grinding mounting seat 200 is fixedly arranged on the base 100; the workpiece mounting seat 130 is arranged in a middle hollow area of the grinding mounting seat 200; the grinding mounting seat 200 is supported on both sides of the workpiece mounting seat 130, which can effectively improve the structural strength and stability of the grinding mounting seat 200, reduce the deformation amount caused by the movement of a first grinding part 210 and a second grinding part 220, improve the precision, and the workpiece mounting seat 130 is arranged in the middle, so that the distance between the first grinding part 210 and the second grinding part 220 and the workpiece to be machined 140 is shorter, and the machining efficiency is improved.

[0026] In an embodiment, a first linear guide rail 120 is arranged on the base 100; the workpiece mounting seat 130 is slidably connected to the first linear guide rail 120 through a sliding block; the first linear guide rail 120 is usually arranged in parallel with two linear guide rails; a first screw rod 111 is connected to an output shaft of the first driving motor 110; the output shaft can be connected to the first screw rod 111 through a shaft coupling, so as to drive the screw rod to rotate; the first screw rod 111 is connected to the workpiece mounting seat 130 to drive the workpiece mounting seat 130 to move along the X direction; it should be noted that the bottom of the workpiece mounting seat 130 usually further comprises a screw rod sleeve for cooperation with the screw rod, so that the linear movement of the workpiece mounting seat 130 on the first linear guide rail 120 can be accurately controlled when the screw rod rotates;

[0027] ​In an embodiment, the grinding mounting base 200 is slidably connected with a first grinding part 210 and a second grinding part 220 which can move along the Y direction; the first grinding part 210 and the second grinding part 220 are both slidably connected with the second linear guide rail 230 on the grinding mounting base 200; the first grinding part 210 and the second grinding part 220 are both provided with a grinding assembly which can move along the Z direction; the grinding mounting base 200 is provided with a second driving motor 240 for driving the first grinding part 210 to move and a third driving motor 250 for driving the second grinding part 220 to move; by splitting the movement of each degree of freedom of the grinding assembly, the workpiece mounting base 130 moves in the X direction, the grinding assembly moves in the Y and Z directions, and the tasks of each movement axis are relatively independent and simple. Compared with the traditional complex movement of the grinding head in multiple directions, this way reduces the error accumulation. For example, when grinding different surfaces such as the side surface and the top surface of the slider, the workpiece mounting base 130 is responsible for the translation in the X direction, which can more accurately send different parts of the slider to the appropriate position under the grinding head, and the grinding head only needs to perform accurate grinding actions in the vertical and horizontal directions in the Y and Z directions. In this way, the positioning error of each axis will not be continuously added in the complex multi-directional movement as in the traditional way, thereby effectively improving the size accuracy and shape accuracy of the slider and making it easier to control the precision indicators such as flatness and straightness within the allowable range. Since the movement of each axis is relatively independent, it is also more convenient to perform precision calibration and compensation. For example, through separate calibration of the workpiece mounting base 130 in the X direction, the position accuracy of the slider in the horizontal direction can be ensured; and the calibration of the grinding assembly in the Y and Z directions focuses on the accuracy control in the vertical and depth directions, which is beneficial to improve the overall grinding accuracy.

[0028] After simplifying the movement mode of the grinding assembly, its movement in the Y and Z directions is more stable. Because the complex multi-directional simultaneous movement and frequent direction switching are reduced, the possibility of vibration is also reduced. For example, when finely grinding the surface of the slider, the grinding assembly grinds in the Y and Z directions at a stable speed and feed rate, and does not vibrate due to the complex movement path, thereby making the ground surface smoother and effectively reducing the surface roughness. Moreover, this stable movement mode is conducive to maintaining the uniformity of the grinding force and avoiding the situation of local over-grinding or under-grinding caused by dynamic accuracy problems of the grinding head, which is particularly suitable for grinding of high-precision linear guide rail sliders. Further, the movement of the grinding assembly in the Z direction usually tends to move to a suitable height and does not change in subsequent grinding, thereby further simplifying the grinding movement and improving the accuracy;

[0029] In an embodiment, the workpiece mounting seat 130 fixes the workpiece 140 to be processed by an electromagnet. By using the electromagnet to adsorb the workpiece 140 to be processed, the appearance of the workpiece 140 to be processed can be not damaged, and the surface of the workpiece 140 to be processed can not be damaged due to clamping; importantly, simultaneous grinding of the inner side and the outer side of the slide block can be realized, and the efficiency is improved; in the conventional clamping, the inner side and the outer side of the slide block must be processed in different processes, and different clamps are needed to clamp the slide block, and errors are formed in the disassembly process.

[0030] In an embodiment, a second screw rod 241 is connected to the output shaft of the second driving motor 240; the second screw rod 241 is connected to the first grinding part 210 to drive the first grinding part 210 to move along the Y direction; a third screw rod 251 is connected to the output shaft of the third driving motor 250; the third screw rod 251 is connected to the second grinding part 220 to drive the second grinding part 220 to move along the Y direction; the second screw rod 241 and the third screw rod 251 are coaxially arranged; the movement of the first grinding part 210 and the second grinding part 220 is independent of each other, and each has a set of driving system; the coaxial arrangement makes the movement of the first grinding part 210 and the second grinding part 220 in the Y direction have an inherent correlation; when the second driving motor 240 and the third driving motor 250 drive the respective screw rods to rotate, due to the coaxial arrangement of the screw rods, their rotary movements can be better kept in synchronization.

[0031] The first grinding part 210 and the second grinding part 220 share a second linear guide rail 230, the second screw rod 241 and the third screw rod 251 are coaxially arranged, which can ensure the consistency of the displacement of the first grinding part 210 and the second grinding part 220, and is beneficial to precisely control the machining consistency between different grinding equipment. The relative positions of the second screw rod 241 and the third screw rod 251 can not be connected, that is, the coaxial arrangement of the second screw rod 241 and the third screw rod 251 can be realized by the cooperation of the second screw rod 241 and the first connecting seat 211, and the cooperation of the third screw rod 251 and the second connecting seat 221; sharing a second linear guide rail 230 can force the first grinding part 210 and the second grinding part 220 to move along the same straight trajectory. This is crucial to ensure the straightness and flatness of the slide block grinding. For example, when grinding the long straight side or top surface of the linear guide rail slide block, the two grinding parts move under the guidance of the same linear guide rail, which can ensure that they grind in the same horizontal or vertical direction, avoid the deviation of the movement trajectory caused by using different guide rails, make the slide block ground surface more smooth, and meet the requirements of linear guide rail slide blocks for high-precision straight line movement surface.

[0032] In an embodiment, the first grinding part 210 comprises a first connecting seat 211; the first connecting seat 211 is in sliding connection with the second linear guide rail 230; the first connecting seat 211 is provided with a first grinding assembly 213 and a second grinding assembly 214; the first connecting seat 211 is provided with a first lifting motor 212 for driving the first grinding assembly 213 and the second grinding assembly 214 to move synchronously in the Z direction. In an embodiment, the first grinding assembly 213 and the second grinding assembly 214 can be respectively arranged as a rough grinding assembly and a fine grinding assembly, so that fine grinding can be quickly performed after rough grinding is completed; in an embodiment, the first grinding assembly 213 and the second grinding assembly 214 are used for grinding the inner side of the sliding block; the first grinding assembly 213 and the second grinding assembly 214 realize synchronous movement in the Z direction, which is beneficial to ensuring the consistency of the two grinding conditions; when the first grinding assembly 213 and the second grinding assembly 214 move synchronously in the Z direction, the rough grinding and the fine grinding of the sliding block plane are performed under similar movement trajectories and force conditions. This helps to ensure the flatness of the sliding block grinding plane. For example, when grinding the mounting plane of the linear guide rail sliding block, the two grinding assemblies are lowered at the same time and process the plane, which can make the plane receive uniform grinding force in the entire width direction, avoid the problems of plane inclination or local depression, protrusion and the like caused by grinding in sequence or out of synchronization, and ensure that the flatness meets the high-precision requirements.

[0033] Since the rough grinding and the fine grinding are completed by the first grinding assembly 213 and the second grinding assembly 214 moving synchronously, the transition from rough grinding to fine grinding is more natural and accurate. The size reference determined in the rough grinding stage can be better continued to the fine grinding stage, reducing the accumulation of size precision errors caused by factors such as re-clamping, position adjustment or different equipment processing. For example, when grinding the thickness of the sliding block, the size precision after rough grinding can be directly fine-tuned by the synchronous fine grinding assembly, avoiding the thickness size deviation caused by improper connection between rough grinding and fine grinding, and being beneficial to accurately controlling the final size precision of the sliding block.

[0034] The synchronous movement of the first grinding assembly 213 and the second grinding assembly 214 enables the rough grinding and the fine grinding to be performed continuously. The sliding block does not need to be transferred to another fine grinding equipment or the grinding head position needs to be adjusted for fine grinding after rough grinding is completed, thereby greatly shortening the entire processing cycle. For example, when producing linear guide rail sliding blocks in batches, the synchronous rough and fine grinding method can significantly reduce the processing time of each sliding block, improving the production efficiency. This synchronous processing method can also reduce the auxiliary time in the grinding process. For example, the time required for operations such as replacing grinding tools, adjusting grinding parameters and repositioning the sliding block is reduced. Because the rough grinding assembly and the fine grinding assembly work at the same time, the grinding of the two stages can be completed in one clamping and movement process, making the processing process more compact and efficient.

[0035] Due to the synchronous movement of the first grinding assembly 213 and the second grinding assembly 214, fine grinding is carried out immediately after rough grinding in a hot state and a stress state. After rough grinding, the sliding block surface will produce certain work hardening and residual stress, and the fine grinding assembly can process these areas in time, so that the microstructure of the sliding block surface is more uniform. For example, during fine grinding, the surface micro cracks, scratches and other defects generated during rough grinding can be removed to obtain a smoother surface finish, meeting the requirements of linear guide sliding blocks for high-precision surface quality.

[0036] Synchronous movement can also ensure that the grinding direction of rough grinding and fine grinding is consistent, which is beneficial to improve the flatness and finishing effect of the sliding block surface. In some application scenarios with extremely high requirements for sliding block surface quality, such as linear guide sliding blocks in high-precision automated equipment, the consistent grinding direction can reduce friction and wear of the sliding block during movement, improve the service life and movement precision of the sliding block.

[0037] In an embodiment, the second grinding part 220 comprises a second connecting seat 221; the second connecting seat 221 is in sliding connection with the second linear guide 230; the second connecting seat 221 is provided with a third grinding assembly 223; the second connecting seat 221 is provided with a second lifting motor 222 for driving the third grinding assembly 223 to move in a third direction. In an embodiment, the third grinding assembly 223 can be arranged to grind the outer side of the sliding block.

[0038] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent transformation or direct or indirect application in related technical fields based on the content of the present application is also included in the patent protection range of the present application.

Claims

1. A slide grinder characterized by: The utility model provides a grinding device, including base (100), slidingly connected with workpiece mounting seat (130) on the base (100), be equipped with the first drive motor (110) of driving workpiece mounting seat (130) along the first direction movement on the base (100), be equipped with the grinding mounting seat (200) of fixed on the base (100), workpiece mounting seat (130) sets up in the middle hollow area of grinding mounting seat (200), slidingly connected with the first grinding part (210) and second grinding part (220) of along the second direction movement on the grinding mounting seat (200), first grinding part (210) with second grinding part (220) all with the second linear guide (230) on the grinding mounting seat (200) slidingly connected, first grinding part (210) with second grinding part (220) all be equipped with the grinding assembly of along the third direction movement, be equipped with the second drive motor (240) of driving first grinding part (210) movement and the third drive motor (250) of driving second grinding part (220) movement on the grinding mounting seat (200).

2. A slide grinder according to claim 1, characterized in that: Be equipped with the first linear guide (120) on the base (100), workpiece mounting seat (130) is connected through the sliding block with the first linear guide (120) slidingly, the output shaft of first drive motor (110) is connected with first screw rod (111), first screw rod (111) is connected with workpiece mounting seat (130) to drive workpiece mounting seat (130) along the first direction movement.

3. A slide grinder according to claim 2, wherein: Workpiece mounting seat (130) is fixed by the electromagnet to the workpiece (140) to be processed.

4. A slide grinder according to claim 1, wherein: The output shaft of second drive motor (240) is connected with second screw rod (241), second screw rod (241) is connected with first grinding part (210) to drive first grinding part (210) along the second direction movement, the output shaft of third drive motor (250) is connected with third screw rod (251), third screw rod (251) is connected with second grinding part (220) to drive second grinding part (220) along the second direction movement, second screw rod (241) and third screw rod (251) are coaxially arranged.

5. The slide grinder according to claim 1, wherein: First grinding part (210) includes first connecting seat (211), first connecting seat (211) is connected with second linear guide (230) slidingly, first connecting seat (211) is equipped with first grinding assembly (213) and second grinding assembly (214), first connecting seat (211) is equipped with the first lifting motor (212) of driving first grinding assembly (213) and second grinding assembly (214) synchronous along the third direction movement.

6. A slide grinder according to claim 1, wherein: Second grinding part (220) includes second connecting seat (221), second connecting seat (221) is connected with second linear guide (230) slidingly, second connecting seat (221) is equipped with third grinding assembly (223), second connecting seat (221) is equipped with the second lifting motor (222) of driving third grinding assembly (223) along the third direction movement.

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