Positioning mechanism of surface grinding machine

Abstract

The utility model discloses a positioning mechanism of a surface grinding machine, which comprises a processing piece and a clamping seat, and is characterized in that two groups of symmetrically distributed first sliding rods are arranged below the processing piece, two groups of symmetrically distributed second sliding rods are arranged below the processing piece, two groups of vertically distributed through holes are formed in the clamping seat, and the first sliding rods and the second sliding rods are arranged on the clamping seat. The clamping base is slidably connected with the first sliding rods and the second sliding rods through two sets of through holes, two sets of symmetrically-distributed first magnetic suction cups and two sets of symmetrically-distributed second magnetic suction cups are arranged below the clamping base, and the two sets of first sliding rods synchronously slide inwards or outwards under the action of a first bidirectional lead screw. And the two sets of second sliding rods synchronously slide inwards or outwards under the action of a second bidirectional lead screw, the two sets of first sliding rods and the two sets of second sliding rods slide to adjust the positions of the clamping bases, so that the clamping bases are distributed at the four corners of the machined part, and the machined part is fixed on the basis of magnetic suction cups.

Description

Technical Field

[0001] The utility model relates to the technical field of surface grinder positioning, in particular to a surface grinder positioning mechanism. Background Art

[0002] Surface grinder is a kind of grinding machine, which mainly uses grinding wheel to rotate and grind the workpiece to achieve the required flatness. According to the shape of the worktable, it can be divided into rectangular worktable and circular worktable. The main parameters of rectangular worktable surface grinder are worktable width and length, and the main parameter of circular worktable is worktable diameter. According to the different types of shafts, it can be divided into horizontal shaft and vertical shaft grinder.

[0003] Existing surface grinders generally rely on permanent magnetic chucks to adsorb workpieces. However, when a large grinding force is applied during the grinding process or the workpiece surface is uneven or has protrusions, the workpiece adsorbed on the chuck can easily shift during the grinding process, thereby affecting the grinding effect of the grinder on the workpiece. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a positioning mechanism for a surface grinder, which solves the problem that the positioning of circular workpieces in the prior art is not stable enough, the contact point between the arc-shaped outer wall of the circular workpiece and the positioning piece is single, and under the action of strong grinding force, the circular workpiece is prone to relative sliding or displacement with the positioning piece, thereby affecting the grinding effect of the grinder.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A surface grinder positioning mechanism comprises a workpiece and a holder, characterized in that the number of the holders is set to four groups, the four groups of the holders are symmetrically distributed with respect to the workpiece, two groups of symmetrically distributed first slide bars are provided below the workpiece, two groups of symmetrically distributed second slide bars are provided below the workpiece, the two groups of the second slide bars are respectively vertically distributed with the two groups of the first slide bars, two groups of vertically distributed through holes are provided on the holder, the holder is slidably connected to the first slide bar and the second slide bar through the two groups of through holes, and two groups of symmetrically distributed first magnetic suction cups and two groups of symmetrically distributed second magnetic suction cups are provided below the holder.

[0007] Preferably, both ends of the two groups of the first sliding rods are provided with a first sliding block, both ends of the two groups of the first sliding rods are provided with two groups of symmetrically distributed first bidirectional screw rods, the left ends of the two groups of the first bidirectional screw rods are sleeved with a first synchronous wheel, the two groups of the first bidirectional screw rods are provided with a first synchronous belt, the first synchronous belt and the first sliding rod are horizontally distributed, and a first motor is provided on the left side of the first sliding rod.

[0008] Preferably, the two groups of the first bidirectional screw rods respectively pass through the two groups of first sliders and are respectively threadedly connected to the two groups of first sliders, the first synchronous belts are respectively transmission connected to the two groups of first synchronous wheels, and the first bidirectional screw rod on the left is connected to the output end of the first motor.

[0009] Preferably, both ends of the two groups of second sliding rods are provided with second sliding blocks, and both ends of the two groups of second sliding rods are provided with two groups of symmetrically distributed second bidirectional screw rods, and the two ends of the two groups of second bidirectional screw rods respectively pass through the two groups of second sliding blocks and are respectively threadedly connected with the second sliding blocks, and a second motor is provided on the right side of the second sliding rod, and the second bidirectional screw rod on the left side is connected to the output end of the second motor.

[0010] Preferably, the right ends of the two groups of the second bidirectional screw rods are both sleeved with second synchronous wheels, and the two groups of the second bidirectional screw rods are provided with second synchronous belts, which are respectively connected to the two groups of the second synchronous wheels for transmission, and the second synchronous belts and the second sliding rod are horizontally distributed.

[0011] Preferably, a first transmission belt is provided below the two groups of the first magnetic suction cups, and the two groups of the first magnetic suction cups are fixedly installed on both sides of the first transmission belt through first mounting rods respectively, and two groups of symmetrically distributed first transmission wheels are provided at both ends of the first transmission belt, and the first transmission belt is respectively connected to the two groups of first transmission wheels for transmission, and a third motor is provided below the first transmission belt, and the first transmission wheel on the left is connected to the output end of the third motor through a rotating shaft.

[0012] Preferably, a second transmission belt is provided under the two groups of the second magnetic suction cups, and the two groups of the second magnetic suction cups are fixedly installed on both sides of the second transmission belt through second mounting rods respectively, and two groups of symmetrically distributed second transmission wheels are provided at both ends of the second transmission belt, and the second transmission belt is respectively connected to the two groups of second transmission wheels for transmission, and a fourth motor is provided under the second transmission belt, and the second transmission wheel on the left side is connected to the output end of the fourth motor through a rotating shaft.

[0013] Compared with the prior art, the utility model has the following beneficial effects: when the device is used, the first motor drives the first bidirectional screw to rotate, and the two groups of first bidirectional screws rotate synchronously under the action of the first synchronous belt and the first synchronous wheel, and the two groups of first sliding rods slide synchronously inward or outward under the action of the first bidirectional screw, and the second motor drives the second bidirectional screw to rotate, and the two groups of second bidirectional screws rotate synchronously under the action of the second synchronous belt and the second synchronous wheel, and the two groups of second sliding rods slide synchronously inward or outward under the action of the second bidirectional screw, and the two groups of first sliding rods and the two groups of second sliding rods slide to adjust the position of the card seat, so that the card seat is distributed at the four corners of the workpiece, and the workpiece is fixed on the basis of the magnetic suction cup, and the two groups of first magnetic suction cups and the two groups of second magnetic suction cups at the bottom of the workpiece can slide synchronously inward or outward on the basis of the first transmission belt and the second transmission belt, and the positions of the four groups of magnetic suction cups are determined according to the size of the workpiece to be fixed and processed, and the workpiece is evenly fixed by magnetic attraction at the bottom of the workpiece, and the four groups of card seats are used to ensure that the workpiece will not be offset in the processing position due to external force during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the card holder of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the first slide bar of the utility model

[0017] Figure 4 For this utility model Figure 3 A schematic diagram of the structure at point A;

[0018] Figure 5 It is a structural schematic diagram of the first magnetic chuck of the utility model.

[0019] In the figure: 1, workpiece; 2, holder; 3, first magnetic suction cup; 4, second magnetic suction cup; 5, first slide bar; 6, first slider; 7, second slide bar; 8, second slider; 9, first bidirectional lead screw; 10, first motor; 11, second bidirectional lead screw; 12, second motor; 13, first synchronous wheel; 14, first synchronous belt; 15, second synchronous wheel; 16, second synchronous belt; 17, first mounting rod; 18, second mounting rod; 19, first transmission wheel; 20, first transmission belt; 21, second transmission wheel; 22, second transmission belt; 23, third motor; 24, fourth motor; 25, through hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1 , Figure 3 , Figure 4 , a surface grinding machine positioning mechanism comprises a workpiece 1 and a holder 2, the number of the holders 2 is set in four groups, the four groups of holders 2 are symmetrically distributed about the workpiece 1, two groups of symmetrically distributed first slide bars 5 are arranged under the workpiece 1, two groups of symmetrically distributed second slide bars 7 are arranged under the workpiece 1, the two groups of second slide bars 7 are respectively vertically distributed with the two groups of first slide bars 5, two groups of vertically distributed through holes 25 are opened on the holder 2, the holder 2 is slidably connected with the first slide bar 5 and the second slide bar 7 through the two groups of through holes 25, two groups of symmetrically distributed first magnetic suction cups 3 and two groups of symmetrically distributed second magnetic suction cups 4 are respectively arranged under the holder 2, first sliders 6 are arranged at both ends of the two groups of first slide bars 5, two groups of symmetrically distributed first bidirectional screw rods 9 are arranged at both ends of the two groups of first slide bars 5, the left ends of the two groups of first bidirectional screw rods 9 are both sleeved with first synchronous wheels 13, the two groups of first bidirectional screw rods 9 are provided with first synchronous belts 14, the first synchronous belts 14 are horizontally distributed with the first slide bar 5, the first A first motor 10 is provided on the left side of a slide bar 5, two groups of first bidirectional screw rods 9 respectively penetrate the two groups of first sliders 6 and are respectively threadedly connected to the two groups of first sliders 6, the first synchronous belt 14 is respectively connected to the two groups of first synchronous wheels 13 for transmission, the first bidirectional screw rod 9 on the left side is connected to the output end of the first motor 10, both ends of the two groups of second slide bars 7 are provided with second slide bars 8, both ends of the two groups of second slide bars 7 are provided with two groups of symmetrically distributed second bidirectional screw rods 11, the two ends of the two groups of second bidirectional screw rods 11 respectively penetrate the two groups of second sliders 8 and are respectively threadedly connected to the second sliders 8, a second motor 12 is provided on the right side of the second slide bar 7, the second bidirectional screw rod 11 on the left side is connected to the output end of the second motor 12, the right ends of the two groups of second bidirectional screw rods 11 are sleeved with second synchronous wheels 15, the two groups of second bidirectional screw rods 11 are provided with second synchronous belts 16, the second synchronous belts 16 are respectively connected to the two groups of second synchronous wheels 15 for transmission, and the second synchronous belts 16 and the second slide bar 7 are horizontally distributed.

[0022] When in use: the first bidirectional screw 9 is driven to rotate by the first motor 10, and the two groups of first bidirectional screws 9 are rotated synchronously under the action of the first synchronous belt 14 and the first synchronous wheel 13, and the two groups of first slide bars 5 are synchronously slid inward or outward under the action of the first bidirectional screw 9. At the same time, the second bidirectional screw 11 is driven to rotate by the second motor 12, and the two groups of second bidirectional screws 11 are rotated synchronously under the action of the second synchronous belt 16 and the second synchronous wheel 15, and the two groups of second slide bars 7 are synchronously slid inward or outward under the action of the second bidirectional screw 11. The two groups of first slide bars 5 and the two groups of second slide bars 7 slide to adjust the position of the holder 2, so that the holder 2 is distributed at the four corners of the workpiece 1, and the workpiece 1 is fixed on the basis of the magnetic suction cup.

[0023] Reference Figure 2 , Figure 5 A first transmission belt 20 is provided below the two groups of first magnetic suction cups 3, and the two groups of first magnetic suction cups 3 are fixedly installed on both sides of the first transmission belt 20 through the first mounting rod 17 respectively. Two groups of symmetrically distributed first transmission wheels 19 are provided at both ends of the first transmission belt 20, and the first transmission belt 20 is respectively connected to the two groups of first transmission wheels 19 for transmission. A third motor 23 is provided below the first transmission belt 20, and the left first transmission wheel 19 is connected to the output end of the third motor 23 through a rotating shaft. A second transmission belt 22 is provided below the two groups of second magnetic suction cups 4, and the two groups of second magnetic suction cups 4 are respectively fixedly installed on both sides of the second transmission belt 22 through the second mounting rod 18. Two groups of symmetrically distributed second transmission wheels 21 are provided at both ends of the second transmission belt 22, and the second transmission belt 22 is respectively connected to the two groups of second transmission wheels 21 for transmission. A fourth motor 24 is provided below the second transmission belt 22, and the left second transmission wheel 21 is connected to the output end of the fourth motor 24 through a rotating shaft.

[0024] When in use: the two groups of first magnetic suction cups 3 and the two groups of second magnetic suction cups 4 at the bottom of the workpiece 1 can slide inward or outward synchronously on the basis of the first transmission belt 20 and the second transmission belt 22. The positions of the four groups of magnetic suction cups are determined according to the size of the workpiece 1 to be fixed and processed, and the workpiece 1 is evenly fixed by magnetic attraction at the bottom of the workpiece 1. The four groups of clamps 2 are used to ensure that the workpiece 1 will not be offset in the processing position due to external force during the processing.

[0025] In summary, the surface grinder positioning mechanism is installed on the surface grinder. When the device is used, the first motor 10 drives the first bidirectional screw 9 to rotate, and the two groups of first bidirectional screws 9 rotate synchronously under the action of the first synchronous belt 14 and the first synchronous wheel 13. The two groups of first sliding bars 5 slide inward or outward synchronously under the action of the first bidirectional screw 9. At the same time, the second motor 12 drives the second bidirectional screw 11 to rotate, and the two groups of second bidirectional screws 11 rotate synchronously under the action of the second synchronous belt 16 and the second synchronous wheel 15. The two groups of second sliding bars 7 slide inward or outward synchronously under the action of the second bidirectional screw 11, and the two groups of first sliding bars 7 slide inward or outward synchronously. The rod 5 and the two groups of second sliding bars 7 slide to adjust the position of the holder 2, so that the holder 2 is distributed at the four corners of the workpiece 1, and the workpiece 1 is fixed on the basis of the magnetic suction cup, and the two groups of first magnetic suction cups 3 and the two groups of second magnetic suction cups 4 at the bottom of the workpiece 1 can slide inward or outward synchronously on the basis of the first transmission belt 20 and the second transmission belt 22. The positions of the four groups of magnetic suction cups are determined according to the size of the workpiece 1 to be fixed, and the workpiece 1 is evenly fixed by magnetic attraction at the bottom of the workpiece 1. The four groups of holders 2 are used to ensure that the workpiece 1 will not be offset in the processing position due to external force during the processing.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surface grinding machine positioning mechanism, comprising a workpiece (1) and a holder (2), characterized in that: The number of the card seats (2) is set to four groups, and the four groups of the card seats (2) are symmetrically distributed with respect to the processing part (1). Two groups of symmetrically distributed first slide bars (5) are provided below the processing part (1), and two groups of symmetrically distributed second slide bars (7) are provided below the processing part (1). The two groups of second slide bars (7) are respectively vertically distributed with the two groups of first slide bars (5). The card seats (2) are provided with two groups of vertically distributed through holes (25). The card seats (2) are respectively slidably connected with the first slide bars (5) and the second slide bars (7) through the two groups of through holes (25). Two groups of symmetrically distributed first magnetic suction cups (3) and two groups of symmetrically distributed second magnetic suction cups (4) are provided below the card seats (2).

2. A surface grinding machine positioning mechanism according to claim 1, characterized in that: Both ends of the two groups of the first sliding rods (5) are provided with first sliding blocks (6), and both ends of the two groups of the first sliding rods (5) are provided with two groups of symmetrically distributed first bidirectional screw rods (9). The left ends of the two groups of the first bidirectional screw rods (9) are sleeved with first synchronous wheels (13). The two groups of the first bidirectional screw rods (9) are provided with first synchronous belts (14), and the first synchronous belts (14) are horizontally distributed with the first sliding rods (5). A first motor (10) is provided on the left side of the first sliding rod (5).

3. A surface grinding machine positioning mechanism according to claim 2, characterized in that: The two groups of the first bidirectional screw rods (9) respectively penetrate the two groups of the first sliders (6) and are respectively threadedly connected to the two groups of the first sliders (6); the first synchronous belts (14) are respectively transmission-connected to the two groups of the first synchronous wheels (13); the first bidirectional screw rod (9) on the left side is connected to the output end of the first motor (10).

4. A surface grinding machine positioning mechanism according to claim 1, characterized in that: Both ends of the two groups of second slide bars (7) are provided with second sliding blocks (8), and two groups of symmetrically distributed second bidirectional screw rods (11) are provided at both ends of the two groups of second slide bars (7). The two ends of the two groups of second bidirectional screw rods (11) respectively penetrate the two groups of second slide bars (8) and are respectively threadedly connected to the second slide bars (8). A second motor (12) is provided on the right side of the second slide bar (7), and the second bidirectional screw rod (11) on the left side is connected to the output end of the second motor (12).

5. A surface grinding machine positioning mechanism according to claim 4, characterized in that: The right ends of the two groups of the second bidirectional screw rods (11) are sleeved with second synchronous wheels (15), and the two groups of the second bidirectional screw rods (11) are provided with second synchronous belts (16). The second synchronous belts (16) are respectively connected to the two groups of the second synchronous wheels (15) in transmission, and the second synchronous belts (16) and the second sliding rods (7) are horizontally distributed.

6. A surface grinding machine positioning mechanism according to claim 1, characterized in that: A first transmission belt (20) is provided below the two groups of the first magnetic suction cups (3); the two groups of the first magnetic suction cups (3) are fixedly installed on both sides of the first transmission belt (20) through first installation rods (17), two groups of symmetrically distributed first transmission wheels (19) are provided at both ends of the first transmission belt (20); the first transmission belt (20) is respectively connected to the two groups of first transmission wheels (19) in transmission; a third motor (23) is provided below the first transmission belt (20); the first transmission wheel (19) on the left side is connected to the output end of the third motor (23) through a rotating shaft.

7. A surface grinding machine positioning mechanism according to claim 1, characterized in that: A second transmission belt (22) is provided below the two groups of the second magnetic suction cups (4); the two groups of the second magnetic suction cups (4) are fixedly installed on both sides of the second transmission belt (22) through second installation rods (18), two groups of symmetrically distributed second transmission wheels (21) are provided at both ends of the second transmission belt (22); the second transmission belt (22) is respectively connected to the two groups of second transmission wheels (21) in transmission; a fourth motor (24) is provided below the second transmission belt (22); the second transmission wheel (21) on the left side is connected to the output end of the fourth motor (24) through a rotating shaft.

Images