Precise horizontal shaft rectangular table surface grinding machine

Abstract

The invention discloses a precise horizontal shaft rectangular table surface grinding machine which comprises a machine body, a workbench and a grinding mechanism. The bed body comprises a front bed body, a rear bed body and a wedge block mechanism, and the front bed body and the rear bed body are mutually positioned and connected through the wedge block mechanism; a moving mechanism and a limiting mechanism are arranged on the front lathe bed, the workbench is arranged on the moving mechanism so that the workbench can reciprocate on the front lathe bed, the moving mechanism is connected with the limiting mechanism so as to buffer and limit movement of the moving mechanism, and the grinding mechanism is movably arranged on the rear lathe bed. According to the precise horizontal shaft rectangular table surface grinding machine, the front machine body and the rear machine body can be in positioning connection through the wedge block mechanism, the connection accuracy of the front machine body and the rear machine body is guaranteed, the moving perpendicularity of the workbench and the grinding head assembly is guaranteed, and the grinding precision and the grinding quality are guaranteed. In addition, due to the arrangement of the limiting mechanism, the working table stably runs when running to the limiting positions of the two ends of the front machine body, and the grinding precision and grinding quality of the precise horizontal shaft rectangular table surface grinding machine are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of grinder grinding, and more specifically to a precision horizontal-spindle and rectangular-table surface grinder. Background Art

[0002] At present, surface grinders mainly use the periphery of the grinding wheel to grind the plane of the workpiece, and can also use the end face of the grinding wheel to grind the side of the workpiece groove. The grinding accuracy and finish are high. It is suitable for grinding various precision parts and molds, and can be used for precision processing in mechanical processing workshops, machine repair workshops, and mold workshops.

[0003] Surface grinders are widely used in the processing of precision and ultra-precision workpieces due to their high processing accuracy, compact structure, stable transmission, and good versatility. With the rapid development of processing technology, machine tools are gradually showing a development trend of high speed, high efficiency, high precision and automation. With the continuous deepening of ultra-high-speed grinding research and industrial practical application, ultra-high-speed surface grinders have become the focus of advanced manufacturing technology development in various countries.

[0004] However, most existing grinding machine beds are integrated beds, which are not convenient for transfer and transportation of grinding machines. Moreover, the transferred grinding machines often need to be repositioned and installed before installation to ensure the positioning accuracy of the grinding machine installation, thereby ensuring the verticality of the worktable and the grinding head during the use of the grinding machine, and ensuring the grinding accuracy and grinding quality. In addition, in the prior art, when using a reciprocating double-end grinder for grinding, there is often a problem that the worktable does not run smoothly enough, resulting in reduced grinding accuracy and difficult to control grinding quality.

[0005] Therefore, how to ensure the positioning accuracy of the reciprocating double-end surface grinder installation and improve the running stability of the reciprocating motion of the worktable is an urgent problem to be solved. Summary of the invention

[0006] The purpose of the present invention is to provide a precision horizontal axis and rectangular table surface grinder. The precision horizontal axis and rectangular table surface grinder provided by the present invention can ensure the positioning accuracy of the installation of the reciprocating double-end surface grinder and improve the running stability of the reciprocating motion of the worktable, ensure the grinding accuracy and improve the grinding quality.

[0007] To achieve the above object, the technical solution of the present invention is as follows:

[0008] A precision horizontal axis and rectangular table surface grinder, the precision horizontal axis and rectangular table surface grinder comprising: a bed, a workbench and a grinding mechanism;

[0009] The bed frame comprises a front bed frame, a rear bed frame and a wedge mechanism, and the front bed frame and the rear bed frame are positioned and connected to each other through the wedge mechanism;

[0010] A moving mechanism and a limiting mechanism are provided on the front bed, the workbench is provided on the moving mechanism so that the workbench can reciprocate on the front bed, the moving mechanism is connected to the limiting mechanism to buffer and limit the movement of the moving mechanism, and the grinding mechanism is movably provided on the rear bed.

[0011] Preferably, the moving mechanism comprises a moving cylinder and a piston rod and a pair of mounting seats;

[0012] The paired mounting seats are arranged at the two ends of the front bed, the piston rod is floatingly arranged on the paired mounting seats, the movable oil cylinder is movably arranged on the piston rod, and both ends of the piston rod are provided with limiting mechanisms.

[0013] Preferably, the limiting mechanism includes an anti-collision block, a fixed stopper, a thrust cylindrical roller bearing, a cylinder pad, a disc spring and a disc spring pressure plate, and a locking nut;

[0014] The anti-collision block is sleeved on the piston rod and abuts against the end surface of the mounting seat close to the movable cylinder. The fixed block, thrust cylindrical roller bearing, cylinder gasket, disc spring and disc spring pressure plate and locking nut are arranged one by one on the end of the piston rod. The fixed block abuts against the end surface of the mounting seat. The locking nut is threadedly connected to the end of the piston rod to tighten the fixed block, thrust cylindrical roller bearing, cylinder gasket, disc spring and disc spring pressure plate.

[0015] Preferably, there are no less than four groups of disc springs.

[0016] Preferably, an electric eye box is provided on the front bed corresponding to the moving cylinder to detect the position of the workbench.

[0017] Preferably, the front bed and the rear bed are each provided with a plurality of pairs of feet to support the front bed and the rear bed.

[0018] Preferably, the wedge mechanism comprises a wedge stopper and a pair of bed wedges;

[0019] The wedge block stopper is fixedly arranged on the side wall of the front bed, and the bed wedge blocks are fixedly arranged on the side wall of the rear bed. The wedge block stopper is provided with an inclined surface matching with the bed wedge block, and the wedge block stopper is interference-fitted with the bed wedge block for positioning connection.

[0020] Preferably, a pair of working guide rails are arranged on the front bed, and the workbench is slidably arranged on the pair of working guide rails. Oil groove plates are arranged at both ends of the working guide rails to block and return oil.

[0021] Preferably, a linear guide rail is fixedly provided on the rear bed, and grinding head moving blocks are provided at both ends of the linear guide rail to limit the moving position of the grinding mechanism.

[0022] Preferably, the grinding mechanism comprises a grinding head assembly, a grinding head vertical feed assembly and a grinding head horizontal feed assembly;

[0023] The grinding head assembly can be raised and lowered on the grinding head vertical feed assembly, the grinding head vertical feed assembly is slidably arranged on the linear guide rail, the grinding head horizontal feed assembly is arranged at one end of the linear guide rail and the output end of the grinding head horizontal feed assembly is connected to the grinding head vertical feed assembly to drive the grinding head vertical feed assembly to slide on the linear guide rail.

[0024] The beneficial effects of the present invention are:

[0025] The precision horizontal axis rectangular table surface grinder uses the setting of the wedge mechanism so that the front bed and the rear bed can be positioned and connected through the wedge mechanism, thereby ensuring the connection accuracy between the front bed and the rear bed, and then ensuring the verticality of the movement of the worktable and the grinding head on the front bed and the rear bed during the transfer and installation process, ensuring the grinding accuracy and grinding quality.

[0026] In addition, both ends of the moving mechanism of the precision horizontal axis and rectangular table surface grinder are provided with limit mechanisms to limit and buffer the movement of the moving mechanism. The setting of the limit mechanisms further enables the worktable to run smoothly when it runs to the extreme positions at both ends of the front bed, avoiding the vibration of the traditional grinder when it runs to the extreme positions at both ends, and ensuring the grinding accuracy and grinding quality of the precision horizontal axis and rectangular table surface grinder. Furthermore, the precision horizontal axis and rectangular table surface grinder is provided with an electric eye box on the front bed, and two electric eyes are provided in the electric eye box to detect the position of the worktable and make timely limit adjustments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a precision horizontal-spindle and rectangular-table surface grinder of the present invention;

[0028] Figure 2 It is a structural schematic diagram of a grinding mechanism of a precision horizontal axis and rectangular table surface grinder of the present invention;

[0029] Figure 3 The invention discloses a structural schematic diagram of a bed and a moving mechanism of a precision horizontal-spindle and rectangular-table surface grinder and a limiting mechanism thereof.

[0030] Description of reference numerals:

[0031] 1. Bed; 101. Rear bed; 102. Grinding head moving block; 103. Linear guide; 104. Foot; 105. Front bed; 106. Oil trough plate; 107. Piston rod; 108. Moving oil cylinder; 109. Electric eye; 110. Electric eye box; 111. Anti-collision block; 112. Fixed block; 113. Thrust cylindrical roller bearing; 114. Cylinder pad; 115. Disc spring; 116. Disc spring pressure plate; 117. Locking nut; 118. Mounting seat; 119. Wedge block; 120. Bed wedge;

[0032] 2. Workbench; 3. Grinding head assembly; 4. Grinding head vertical feed assembly; 5. Grinding head horizontal feed assembly. DETAILED DESCRIPTION

[0033] Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar modifications without violating the connotation of the present invention, so the present invention is not limited to the specific implementation disclosed below.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0036] like Figure 1 and Figure 2 As shown, a precision horizontal axis and rectangular table surface grinder, which precision horizontal axis and rectangular table surface grinder includes: a bed 1, a worktable 2 and a grinding mechanism; the bed 1 includes a front bed 105, a rear bed 101 and a wedge mechanism, and the front bed 105 and the rear bed 101 are positioned and connected to each other through the wedge mechanism; a moving mechanism and a limiting mechanism are arranged on the front bed 105, the worktable 2 is arranged on the moving mechanism so that the worktable 2 can reciprocate on the front bed 105, the moving mechanism is connected to the limiting mechanism to buffer and limit the movement of the moving mechanism, and the grinding mechanism is movably arranged on the rear bed 101.

[0037] In this embodiment, the precision horizontal axis and rectangular table surface grinder is provided with a wedge mechanism so that the front bed 105 and the rear bed 101 can be positioned and connected through the wedge mechanism, thereby ensuring the connection accuracy between the front bed 105 and the rear bed 101, and ensuring the verticality of the movement of the worktable 2 and the grinding head on the front bed 105 and the rear bed 101 during the transportation and installation process, thereby ensuring the grinding accuracy and grinding quality. In addition, in the precision horizontal axis and rectangular table surface grinder, both ends of its moving mechanism are provided with a limit mechanism to limit and buffer the movement of the moving mechanism. The setting of the limit mechanism further enables the worktable 2 to run smoothly when it runs to the extreme positions at both ends of the front bed 105, avoiding the vibration of the traditional grinder when running to the extreme positions at both ends, and ensuring the grinding accuracy and grinding quality of the precision horizontal axis and rectangular table surface grinder.

[0038] like Figure 3 As shown, the moving mechanism includes a moving cylinder 108, a piston rod 107 and a pair of mounting seats 118; the pair of mounting seats 118 are arranged at both ends of the front bed 105, the piston rod 107 is floatingly arranged on the pair of mounting seats 118, the moving cylinder 108 is movably arranged on the piston rod 107, and both ends of the piston rod 107 are provided with limiting mechanisms.

[0039] The limiting mechanism includes an anti-collision block 111, a fixed block 112, a thrust cylindrical roller bearing 113, a cylinder pad 114, a disc spring 115, a disc spring pressure plate 116 and a locking nut 117; the anti-collision block 111 is sleeved on the piston rod 107 and the anti-collision block 111 abuts against the end surface of the mounting seat 118 close to the moving cylinder 108, the fixed block 112, the thrust cylindrical roller bearing 113, the cylinder pad 114, the disc spring 115, the disc spring pressure plate 116 and the locking nut 117 are arranged on the end of the piston rod 107 one by one, the fixed block 112 abuts against the end surface of the mounting seat 118, and the locking nut 117 is threadedly connected to the end of the piston rod 107 to compress the fixed block 112, the thrust cylindrical roller bearing 113, the cylinder pad 114, the disc spring 115 and the disc spring pressure plate 116. There are no less than four groups of disc springs 115. An electric eye box 110 is provided on the front bed 105 corresponding to the moving cylinder 108 to detect the position of the workbench 2 .

[0040] In this embodiment, the anti-collision block 111 is sleeved on the piston rod 107 and the anti-collision block 111 abuts against the end surface of the mounting seat 118 close to the moving cylinder 108. When the workbench 2 moves to the extreme positions at both ends along the piston rod 107, the anti-collision block 111 can abut against the end of the moving cylinder 108 to initially buffer the moving cylinder 108 and prevent the workbench 2 from shaking. A fixed stopper 112 is arranged on the outer end face of the mounting seat 118, and the thrust cylindrical roller bearing 113 is closely attached to the fixed stopper 112, and the cylinder pad 114 is closely attached to the thrust cylindrical roller bearing 113 and the other end is closely attached to four sets of disc springs 115, and the piston rod 107 passes through the fixed stopper 112, the thrust cylindrical roller bearing 113, the cylinder pad 114 and the four sets of disc springs 115, and the fixed stopper 112, the thrust cylindrical roller bearing 113, the cylinder pad 114 and the four sets of disc springs 115 are locked by the disc spring pressure plate 116 and the locking nut 117 to prevent the above-mentioned structure from loosening. When the workbench 2 moves, it is initially buffered by the anti-collision block 111, and the final buffering is completed by multiple sets of disc springs 115. The precision horizontal axis and rectangular table surface grinder uses a double buffer structure to ensure stable operation of the worktable 2 when it moves to the extreme positions at both ends, avoiding shaking caused by collision, and further improving the operation accuracy and grinding accuracy of the precision horizontal axis and rectangular table surface grinder. Furthermore, the precision horizontal axis and rectangular table surface grinder is provided with an electric eye box 110 on the front bed 105, and two electric eyes 109 are provided in the electric eye box 110 to detect the position of the worktable 2 and make timely limit adjustments.

[0041] See also Figure 3 The front bed 105 and the rear bed 101 are both provided with a plurality of pairs of feet 104 to support the front bed 105 and the rear bed 101. The wedge mechanism includes a wedge block 119 and a pair of bed wedges 120; the wedge block 119 is fixedly arranged on the side wall of the front bed 105, and the bed wedges 120 are both fixedly arranged on the side wall of the rear bed 101. The wedge block 119 is provided with an inclined surface matched with the bed wedge 120, and the wedge block 119 and the bed wedge 120 are interference-fitted for positioning connection.

[0042] In this embodiment, the rear bed 101 and the front bed 105 are both supported by the feet 104. In order to ensure the accuracy of the positioning and connection between the front bed 105 and the rear bed 101, a wedge block structure is added. The wedge block stopper 119 contacts the two bed wedge blocks 120 through the inclined surface. The two sets of wedge blocks are engaged with each other to achieve the tensioning and accurate positioning connection of the front bed 105 and the rear bed 101, thereby ensuring the verticality of the linear guide rail 103 and the inner guide rail of the front bed 105.

[0043] See also Figure 2 and Figure 3A pair of working guide rails are arranged on the front bed 105, and the worktable 2 is slidably arranged on the pair of working guide rails. Oil groove plates 106 are arranged at both ends of the working guide rails to block and return oil. A linear guide rail 103 is fixedly arranged on the rear bed 101, and grinding head moving blocks 102 are arranged at both ends of the linear guide rail 103 to limit the moving position of the grinding mechanism.

[0044] In this embodiment, the working guide rail is preferably a V-shaped guide rail, and the front bed 105 and the rear bed 101 are positioned and connected by wedge blocks. The rear bed 101 is fixedly connected to the inner slide rail of the linear guide rail 103, and the blocks are the limit limits at both ends of the slider in the linear guide rail 103. The working guide rails on the left and right ends of the front bed 105 are fixed with oil groove plates 106 for oil return. The rear bed 101 and the front bed 105 are both supported by the feet 104. In order to ensure the accuracy of the positioning connection between the front bed 105 and the rear bed 101, a wedge block mechanism is added to be positioned and connected with the two bed wedge blocks 120 through the wedge block block 119, thereby ensuring the verticality of the linear guide rail 103 and the working guide rail in the front bed 105.

[0045] In a preferred embodiment, the grinding mechanism includes a grinding head assembly 3, a grinding head vertical feed assembly 4 and a grinding head horizontal feed assembly 5; the grinding head assembly 3 is movably arranged on the grinding head vertical feed assembly 4, the grinding head vertical feed assembly 4 is slidably arranged on the linear guide rail 103, the grinding head horizontal feed assembly 5 is arranged at one end of the linear guide rail 103, and the output end of the grinding head horizontal feed assembly 5 is connected to the grinding head vertical feed assembly 4 to drive the grinding head vertical feed assembly 4 to slide on the linear guide rail 103. Among them, a ball screw and a drive motor are arranged in the grinding head vertical feed assembly 4, wherein the grinding head assembly 3 is threadedly connected to the ball screw, and the output end of the drive motor is connected to the ball screw to drive the ball screw to rotate, thereby driving the grinding head assembly 3 to reciprocate in the vertical direction.

[0046] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A precision horizontal axis and rectangular table surface grinder, characterized in that: The precision horizontal axis and rectangular table surface grinder comprises: a bed, a worktable and a grinding mechanism; The bed frame comprises a front bed frame, a rear bed frame and a wedge mechanism, and the front bed frame and the rear bed frame are positioned and connected to each other through the wedge mechanism; A moving mechanism and a limiting mechanism are provided on the front bed, the workbench is provided on the moving mechanism so that the workbench can reciprocate on the front bed, the moving mechanism is connected to the limiting mechanism to buffer and limit the movement of the moving mechanism, and the grinding mechanism is movably provided on the rear bed.

2. The precision horizontal axis and rectangular table surface grinder according to claim 1, characterized in that: The moving mechanism comprises a moving oil cylinder, a piston rod and a pair of mounting seats; The paired mounting seats are arranged at the two ends of the front bed, the piston rod is floatingly arranged on the paired mounting seats, the movable oil cylinder is movably arranged on the piston rod, and both ends of the piston rod are provided with limiting mechanisms.

3. The precision horizontal axis and rectangular table surface grinder according to claim 2, characterized in that: The limiting mechanism includes an anti-collision block, a fixed stopper, a thrust cylindrical roller bearing, a cylinder pad, a disc spring and a disc spring pressure plate, and a locking nut; The anti-collision block is sleeved on the piston rod and abuts against the end surface of the mounting seat close to the movable cylinder. The fixed block, thrust cylindrical roller bearing, cylinder gasket, disc spring and disc spring pressure plate and locking nut are arranged one by one on the end of the piston rod. The fixed block abuts against the end surface of the mounting seat. The locking nut is threadedly connected to the end of the piston rod to tighten the fixed block, thrust cylindrical roller bearing, cylinder gasket, disc spring and disc spring pressure plate.

4. The precision horizontal axis and rectangular table surface grinder according to claim 3 is characterized in that: The disc springs are no less than four groups.

5. The precision horizontal spindle and rectangular table surface grinder according to claim 1, characterized in that: An electric eye box is arranged on the front bed corresponding to the moving cylinder to detect the position of the workbench.

6. The precision horizontal spindle and rectangular table surface grinder according to any one of claims 1 to 5, characterized in that: The front bed and the rear bed are both provided with a plurality of pairs of feet to support the front bed and the rear bed.

7. The precision horizontal spindle and rectangular table surface grinder according to any one of claims 1 to 5, characterized in that: The wedge mechanism includes a wedge stopper and a pair of bed wedges; The wedge block stopper is fixedly arranged on the side wall of the front bed, and the bed wedge blocks are fixedly arranged on the side wall of the rear bed. The wedge block stopper is provided with an inclined surface matching with the bed wedge block, and the wedge block stopper is interference-fitted with the bed wedge block for positioning connection.

8. The precision horizontal spindle and rectangular table surface grinder according to any one of claims 1 to 5, characterized in that: The front bed is provided with a pair of working guide rails, the workbench is slidably arranged on the pair of working guide rails, and oil groove plates are arranged at both ends of the working guide rails to block and return oil.

9. The precision horizontal spindle and rectangular table surface grinder according to any one of claims 1 to 5, characterized in that: A linear guide rail is fixedly arranged on the rear bed, and grinding head moving blocks are arranged at both ends of the linear guide rail to limit the moving position of the grinding mechanism.

10. The precision horizontal spindle and rectangular table surface grinder according to claim 9, characterized in that: The grinding mechanism comprises a grinding head assembly, a grinding head vertical feeding assembly and a grinding head horizontal feeding assembly; The grinding head assembly can be raised and lowered on the grinding head vertical feed assembly, the grinding head vertical feed assembly is slidably arranged on the linear guide rail, the grinding head horizontal feed assembly is arranged at one end of the linear guide rail and the output end of the grinding head horizontal feed assembly is connected to the grinding head vertical feed assembly to drive the grinding head vertical feed assembly to slide on the linear guide rail.

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