A CNC machining grinding machine and its clamping mechanism

Abstract

This invention provides a CNC grinding machine and its clamping mechanism, relating to the field of grinding machine technology. The clamping mechanism of this CNC grinding machine includes a clamping frame, a sliding table, a rotary adjustment component, and a first pin. The sliding table is rotatably mounted on the clamping frame and is used to fix the workpiece. The rotary adjustment component is movably inserted through the clamping frame and is drively connected to the sliding table. When the rotary adjustment component moves, it can drive the clamping frame to rotate. The rotary adjustment component has a fixing pin hole. The first pin is movably mounted on the clamping frame. When the rotary adjustment component moves within the clamping frame, one end of the first pin can be inserted into the fixing pin hole. The clamping mechanism of this CNC grinding machine can quickly adjust the workpiece to a specific tilt angle, thereby improving the workpiece processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of grinding technology, and in particular to a CNC machining grinding machine and its clamping mechanism. Background Technology

[0002] A grinding machine is a machine tool that uses grinding wheels to grind the surface of a workpiece. In related technologies, such as reference 202323518192.9, a jig for a bevel grinding machine is disclosed. After the workpiece is fixed on a fixed base, the workpiece is rotated by rotating the fixed base, thereby adjusting the tilt angle of the workpiece.

[0003] When grinding a workpiece, it may be necessary to repeatedly grind the workpiece at a specific tilt angle. If the aforementioned inclined grinding machine is used, the operator must observe the change in the angle scale line pointed to by the pointer each time to ensure that the tilt angle of the workpiece is the specific tilt angle. The method of the operator judging the rotation angle of the workpiece by observing the change in the angle scale line pointed to by the pointer is not only inconvenient, but also requires a lot of effort from the operator, thus affecting the processing efficiency of the workpiece. Furthermore, the stains generated during the workpiece processing may cover the angle scale line, requiring the operator to spend time cleaning the stains, which further affects the processing efficiency of the workpiece.

[0004] The information disclosed in the background section of this invention is intended only to enhance the understanding of the general background of this invention, and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] Therefore, it is necessary to provide a CNC machining grinding machine and its clamping mechanism to address the problem of low efficiency in the current method of adjusting the workpiece to a specific tilt angle.

[0006] The above objectives are achieved through the following technical solutions:

[0007] In a first aspect, a clamping mechanism for a CNC machining grinding machine is provided, comprising:

[0008] Clamping frame;

[0009] A sliding platform is rotatably mounted on the clamping frame, and the sliding platform is used to fix the workpiece;

[0010] A rotary adjustment component is movably inserted through the clamping frame and is connected to the sliding platform in a transmission manner. When the rotary adjustment component moves, it can drive the clamping frame to rotate. A fixing pin hole is provided on the rotary adjustment component.

[0011] The first pin is movably mounted on the clamping frame.

[0012] When the rotating adjustment member moves within the clamping frame, one end of the first pin can be inserted into the fixing pin hole.

[0013] In one possible implementation, the rotating adjustment component includes a connecting rod and a sliding rod. The connecting rod is movably inserted through the sliding platform, and one end of the sliding rod is adjustablely inserted through one end of the connecting rod. The connecting rod can drive the sliding rod to rotate. The fixing pin hole is formed on the connecting rod. The sliding platform is provided with a first bevel gear, and the end of the sliding rod away from the connecting rod is provided with a second bevel gear that meshes with the first bevel gear.

[0014] In one possible implementation, the transmission ratio between the second bevel gear and the first bevel gear is greater than 1.

[0015] In one possible implementation, the rotating adjustment member is further provided with an annular fixing groove, and the fixing pin hole is formed on the inner wall of the annular fixing groove, and one end of the first pin can be inserted into the annular fixing groove or the fixing pin hole.

[0016] In one possible implementation, the clamping mechanism of the CNC machining grinding machine further includes a second pin, which is movably disposed on the clamping frame. The second pin and the first pin are respectively disposed on both sides of the rotary adjustment member, and the second pin and the first pin are misaligned. When the rotary adjustment member moves on the clamping frame, one end of the second pin can be inserted into the annular fixing groove or the fixing pin hole.

[0017] In one possible implementation, the rotary adjustment member is further provided with a plurality of indexing slots, the spacing between two adjacent indexing slots is the same, the fixing pin hole is provided between two adjacent indexing slots, and one end of the first pin is provided with a conical pin head that is adapted to the shape of the indexing slot, the conical pin head being able to be inserted into the fixing pin hole or the indexing slot.

[0018] In one possible implementation, the clamping frame has a first sliding groove, and a locking block is provided in the first sliding groove; the rotary adjustment member is adjustablely inserted through the first sliding groove; the clamping mechanism of the CNC machining grinding machine further includes a locking assembly, the locking assembly includes a sliding locking block and a nut, the sliding locking block is movably disposed in the first sliding groove, one end of the sliding locking block is disposed on the side of the locking block near the rotary adjustment member, the other end of the sliding locking block is disposed on the side of the locking block away from the rotary adjustment member, the nut is adjustablely sleeved on the end of the sliding locking block away from the rotary adjustment member; the first pin is movably inserted through the sliding locking block.

[0019] In one possible implementation, an abutment plate is fitted onto the end of the first pin facing the rotary adjustment member; the clamping mechanism of the CNC machining grinding machine further includes a locking assembly, which includes a locking screw and a spring, the locking screw being adjustablely inserted through the sliding locking block, one end of the spring being connected to the end of the locking screw facing the rotary adjustment member, and the other end of the spring being connected to the abutment plate; the first pin is movably inserted through the locking screw.

[0020] In one possible implementation, the clamping mechanism further includes a push plate and a clamping block, the push plate being fixed to the sliding platform, the clamping block being movably disposed on the sliding platform, and the space between the clamping block and the push plate being used to fix the workpiece.

[0021] Secondly, a CNC machining grinding machine is provided, including a base, a coolant collection tank, a grinding wheel, and the aforementioned clamping mechanism. The base is movably disposed in the coolant collection tank, the clamping mechanism is disposed on the base, the grinding wheel faces the clamping mechanism, and the grinding wheel is used to grind the workpiece fixed on the clamping mechanism.

[0022] The beneficial effects of this invention are:

[0023] The clamping mechanism of the CNC grinding machine provided by this invention allows the rotary adjustment component to move within the clamping frame, driving the sliding table to rotate. This, in turn, causes the sliding table to synchronously rotate the workpiece, thereby adjusting the workpiece's tilt angle. Furthermore, the movement of the rotary adjustment component within the clamping frame changes the relative position of the fixed pin hole and the first pin, allowing one end of the first pin to be inserted into the fixed pin hole. The insertion of one end of the first pin into the fixed pin hole restricts the movement of the rotary adjustment component within the clamping frame, thus limiting the rotation of the sliding table relative to the clamping frame. When one end of the first pin is inserted into the fixed pin hole, the workpiece's tilt angle is precisely the specific angle required for machining. Compared to existing technologies, the clamping mechanism of this invention for the CNC grinding machine adjusts the workpiece to a specific tilt angle without requiring the operator to observe changes in the pointer's angle scale. With one end of the first pin inserted into the fixed pin hole, the rotary adjustment component cannot move within the clamping frame, allowing the operator to determine the workpiece's tilt angle by touch alone, effectively improving machining efficiency. Attached Figure Description

[0024] Figure 1 A first-view structural schematic diagram of a clamping mechanism according to an embodiment of the present invention is shown;

[0025] Figure 2 An exploded view of a clamping mechanism according to an embodiment of the present invention is shown;

[0026] Figure 3 It shows Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 It shows Figure 2 Enlarged view of point B in the middle;

[0028] Figure 5 It shows Figure 2 Enlarged view of point C in the middle;

[0029] Figure 6 It shows Figure 2 Enlarged view of point D in the middle;

[0030] Figure 7 A schematic diagram of the clamping mechanism according to an embodiment of the present invention is shown from a second perspective.

[0031] Figure 8 It shows Figure 7 A cross-sectional view of the clamping mechanism along the AA direction;

[0032] Figure 9 It shows Figure 8 Enlarged view of point E in the middle;

[0033] Figure 10 It shows Figure 7 A cross-sectional view of the clamping mechanism along the BB direction;

[0034] Figure 11 It shows Figure 10 Enlarged view of point F in the middle;

[0035] Figure 12 It shows Figure 10 Enlarged view of point G in the middle;

[0036] Figure 13 It shows Figure 10 Enlarged view of point H in the middle;

[0037] Figure 14 A schematic diagram of the structure of a CNC machining grinding machine according to an embodiment of the present invention is shown.

[0038] in:

[0039] 100. Clamping mechanism; 110. Clamping frame; 111. First support base; 1111. First base; 1111a. Scale; 1111b. First sliding groove; 1111c. Positioning hole; 1111d. Engaging block; 1112. Second base; 112. Fixed base; 113. Second support base; 120. Sliding platform; 121. Second sliding groove; 122. First bevel gear; 123. Scale; 124. Clamping limit groove; 130. Push plate; 140. Clamping block; 141. Hemispherical screw; 142. Screw sleeve; 143. 150. Positioning pin; 151. Rotary adjusting component; 152. Adjusting handwheel; 153. Connecting rod; 154. Indexing groove; 155. Annular fixing groove; 156. Fixing pin hole; 157. Connecting thread; 158. Third sliding groove; 159. Sliding rod; 150. Second bevel gear; 161. First pin; 162. Pull cap; 163. Connecting rod; 164. Conical pin head; 175. Abutment plate; 176. Sliding locking block; 177. Elastic washer; 178. Nut; 189. Locking screw; 180. Pin mounting hole; 181. Spring; 182. Push groove; 190. Second pin;

[0040] 200. Base;

[0041] 300. Grinding wheel;

[0042] 400. Coolant collection tank;

[0043] 1000. CNC machining grinding machine. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0045] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They 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, and therefore should not be construed as limiting the invention.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] Please see Figures 1 to 14 One embodiment of the present invention provides a clamping mechanism 100, which is applied to a CNC machining grinding machine 1000. The clamping mechanism 100 can clamp and drive the workpiece to rotate so that the grinding wheel 300 of the CNC machining grinding machine 1000 can perform grinding processing on the workpiece in different directions.

[0048] Please see Figure 1 , Figure 2 and Figure 4 The clamping mechanism 100 includes a clamping frame 110, a sliding platform 120, a rotating adjustment member 150, and a first pin 160. The sliding platform 120 is rotatably mounted on the clamping frame 110. The rotating adjustment member 150 is movably mounted through the clamping frame 110 and is connected to the sliding platform 120 in a transmission manner. The rotating adjustment member 150 has a fixing pin hole 1523. The first pin 160 is movably mounted on the clamping frame 110.

[0049] The clamping frame 110 supports the sliding table 120, which is used to fix the workpiece. The rotation adjustment member 150 moves within the clamping frame 110, causing the sliding table 120 to rotate, thus allowing the workpiece to rotate synchronously. This adjusts the workpiece's tilt angle. Furthermore, the movement of the rotation adjustment member 150 within the clamping frame 110 changes the relative position of the fixing pin hole 1523 and the first pin 160, allowing one end of the first pin 160 to be inserted into the fixing pin hole 1523. The insertion of one end of the first pin 160 into the fixing pin hole 1523 restricts the movement of the rotation adjustment member 150 within the clamping frame 110, thereby limiting the rotation of the sliding table 120 relative to the clamping frame 110. When one end of the first pin 160 is inserted into the fixing pin hole 1523, the workpiece's tilt angle is precisely the specific angle required for processing. Compared to existing technologies, the clamping mechanism 100 of this embodiment adjusts the workpiece to a specific tilt angle without requiring the operator to observe the change in the angle scale line pointed to by the pointer. When one end of the first pin 160 is inserted into the fixed pin hole 1523, the rotating adjustment member 150 cannot move within the clamping frame 110. The operator can judge the workpiece to a specific tilt angle by feel alone, thereby effectively improving the processing efficiency of the workpiece.

[0050] Please see Figure 1 and Figure 2 In some embodiments, the clamping frame 110 includes a first support base 111, a fixed base 112, and a second support base 113. The first support base 111 and the second support base 113 are respectively connected to opposite ends of the fixed base 112. One end of the sliding platform 120 is rotatably connected to the first support base 111, and the other end of the sliding platform 120 is rotatably connected to the second support base 113, so that the sliding platform 120 is rotatably mounted on the clamping frame 110. The rotating adjustment member 150 is adjustablely inserted through the first support base 111, and the first pin 160 is movably mounted on the first support base 111.

[0051] Furthermore, the first support base 111 includes a first base body 1111 and a second base body 1112 that are detachably connected. After the first base body 1111 and the second base body 1112 are connected, a cavity is formed inside. The end of the sliding platform 120 away from the second support base 113 is rotatably disposed in the cavity. The rotating adjustment member 150 is adjustablely disposed through the first base body 1111, and one end of the rotating adjustment member 150 is connected in a transmission manner to the end of the sliding platform 120 away from the second support base 113 in the cavity. The first pin 160 is movably disposed on the first base body 1111.

[0052] For example, the second seat 1112 is fixedly connected to the end of the fixed seat 112 away from the second support seat 113, and the first seat 1111 and the second seat 1112 are detachably connected by a bolt structure.

[0053] Please see Figure 1 , Figure 2 and Figure 7 In some embodiments, the clamping mechanism 100 further includes a push plate 130 and a clamping block 140. The push plate 130 is fixed to one end of the sliding table 120 near the second support seat 113. The clamping block 140 is movably disposed on the sliding table 120. The space between the clamping block 140 and the push plate 130 is used to fix the workpiece so that when the sliding table 120 rotates, it drives the workpiece to rotate synchronously.

[0054] Please see Figure 2 , Figure 8 and Figure 9 In some embodiments, the sliding platform 120 has a second sliding groove 121 along its length, and the sliding platform 120 has a plurality of spaced clamping and limiting grooves 124 on the side near the fixed base 112; the clamping mechanism 100 also includes a hemispherical screw 141, a screw sleeve 142, and a positioning pin 143. The hemispherical screw 141 passes through the clamping block 140, and the hemispherical end of the hemispherical screw 141 is rotatably engaged with the clamping block 140. The other end of the ball screw 141 extends into the second sliding groove 121; the threaded sleeve 142 is disposed in the second sliding groove 121, and one end of the threaded sleeve 142 is rotatably engaged with the end of the hemispherical screw 141 away from the hemisphere, and the other end of the threaded sleeve 142 is located on the side of the sliding platform 120 near the fixed seat 112; the positioning pin 143 passes through the end of the threaded sleeve 142 away from the hemispherical screw 141, and the axial direction of the positioning pin 143 is parallel to the extension direction of the clamping and limiting groove 124.

[0055] The operator can rotate the hemispherical end of the hemispherical screw 141 to screw the end of the hemispherical screw 141 away from the hemispherical end into or out of the threaded sleeve 142; when the end of the hemispherical screw 141 away from the hemispherical end is screwed into the threaded sleeve 142, the positioning pin 143 can be provided in the clamping limiting groove 124 to limit the movement of the clamping block 140 on the sliding table 120, thereby fixing the workpiece between the clamping block 140 and the push plate 130.

[0056] For example, the outer side of the hemispherical screw 141 away from the hemisphere is provided with an external thread, and the end of the screw sleeve 142 away from the positioning pin 143 is provided with a moving groove. The inner wall of the moving groove is provided with an internal thread corresponding to the external thread. The hemispherical screw 141 and the screw sleeve 142 are threadedly connected so that when the hemispherical screw 141 rotates, the end of the hemispherical screw 141 away from the hemisphere can be screwed into or out of the screw sleeve 142.

[0057] For example, the hemispherical screw 141 has a portion of one hemisphere exposed outside the clamping block 140, and an operator can turn the hemispherical screw 141 with a wrench.

[0058] When the workpiece is not placed between the clamping block 140 and the push plate 130, the end of the hemispherical screw 141 away from the hemisphere is screwed out of the threaded sleeve 142, so that the positioning pin 143 can disengage from the clamping limiting groove 124, thereby adjusting the position of the clamping block 140 on the sliding table 120. When the workpiece is placed between the clamping block 140 and the push plate 130, and the clamping block 140 abuts against the workpiece and continuously presses the workpiece against the push plate 130, the hemispherical screw 141 is rotated, and the end of the hemispherical screw 141 away from the hemisphere is screwed into the threaded sleeve 142, so that the positioning pin 143 is located in one of the multiple clamping limiting grooves 124, thereby fixing the position of the clamping block 140 on the sliding table 120, and thus enabling the sliding table 120 to drive the workpiece to rotate synchronously.

[0059] Please see Figures 2 to 4 In some embodiments, the rotating adjustment member 150 includes a connecting rod 152 and a sliding rod 153. The connecting rod 152 is movably inserted through the sliding platform 120, and one end of the sliding rod 153 is adjustablely inserted through one end of the connecting rod 152. The connecting rod 152 can drive the sliding rod 153 to rotate. A fixing pin hole 1523 is formed on the connecting rod 152. A first bevel gear 122 is provided on the sliding platform 120, and a second bevel gear 1531 that meshes with the first bevel gear 122 is provided at the end of the sliding rod 153 away from the connecting rod 152.

[0060] The connecting rod 152 can move on the sliding table 120 to change the relative position of the fixing pin hole 1523 and the first pin 160; one end of the sliding rod 153 is adjustablely inserted through one end of the connecting rod 152 so that the sliding rod 153 will not move when the connecting rod 152 moves; the connecting rod 152 can drive the sliding rod 153 to rotate, so that the second bevel gear 1531 rotates, thereby driving the sliding table 120 to rotate through the first bevel gear 122, and thus causing the sliding table 120 to drive the workpiece to rotate.

[0061] Please see Figure 6 , Figure 10 and Figure 12In some embodiments, the first base 1111 has a first sliding groove 1111b and a rotating engagement groove communicating with the first sliding groove 1111b. One end of the connecting rod 152 passes through the first sliding groove 1111b and is disposed in the rotating engagement groove. The end of the sliding rod 153 away from the second bevel gear 1531 is adjustablely disposed through the end of the connecting rod 152 disposed in the rotating engagement groove. The inner wall of the rotating engagement groove is provided with a meshing block 1111d. The outer side of the end of the connecting rod 152 disposed in the rotating engagement groove is provided with a connecting thread 1524 that mates with the meshing block 1111d. The connecting rod 152 is threadedly connected to the rotating engagement groove so that when the connecting rod 152 rotates, the connecting rod 152 can move within the rotating engagement groove, thereby changing the relative position of the fixing pin hole 1523 and the first pin 160.

[0062] Please see Figure 4 and Figure 12 In some embodiments, the connecting rod 152 has a third sliding groove 1525 at one end near the sliding rod 153, and the end of the sliding rod 153 away from the second bevel gear 1531 is telescopically inserted into the third sliding groove 1525; the sliding rod 153 is a square rod, and the third sliding groove 1525 is a square groove, so that when the connecting rod 152 rotates, it can drive the sliding rod 153 to rotate synchronously.

[0063] Please see Figure 4 , Figure 6 and Figure 11 In some embodiments, the first base 1111 has a positioning hole 1111c that communicates with the rotating mating groove, and a part of the second bevel gear 1531 is rotatably disposed in the positioning hole 1111c to ensure the stability of the meshing between the second bevel gear 1531 and the first bevel gear 122.

[0064] Please see Figure 2 In some embodiments, the rotary adjustment member 150 further includes an adjustment handwheel 151. The adjustment handwheel 151 is located outside the clamping frame 110 and is fixedly connected to the end of the connecting rod 152 away from the sliding rod 153. The operator can rotate the adjustment handwheel 151 to drive the connecting rod 152 to rotate, thereby moving the connecting rod 152 within the clamping frame 110.

[0065] Please see Figures 2 to 4 In some embodiments, the number of teeth of the second bevel gear 1531 is less than the number of teeth of the first bevel gear 122, so that the transmission ratio between the second bevel gear 1531 and the first bevel gear 122 is greater than 1, thereby reducing the force required to rotate the sliding table 120, and thus facilitating precise control of the tilt angle of the workpiece.

[0066] Please see Figure 5 and Figure 13In some embodiments, a locking block is provided in the first sliding groove 1111b; the clamping mechanism 100 further includes a locking assembly, which includes a sliding locking block 170 and a nut 172. The sliding locking block 170 is movably disposed in the first sliding groove 1111b along the axial direction of the connecting rod 152. One end of the sliding locking block 170 is disposed on the side of the locking block near the connecting rod 152, and the other end of the sliding locking block 170 is disposed on the side of the locking block away from the connecting rod 152. The nut 172 is adjustablely sleeved on the end of the sliding locking block 170 away from the connecting rod 152; the first pin 160 is movably inserted through the sliding locking block 170.

[0067] By rotating the nut 172 at the end of the sliding locking block 170 away from the connecting rod 152, the operator can cause relative displacement between the nut 172 and the sliding locking block 170. This allows the ends of the nut 172 and the sliding locking block 170 near the connecting rod 152 to abut against opposite sides of the locking block, thereby fixing the first pin 160 in position on the clamping frame 110 along the axial direction of the connecting rod 152. When the nut 172 loosens from the locking block, the sliding locking block 170 can move on the clamping frame 110 along the axial direction of the connecting rod 152, thereby adjusting the position of the first pin 160 on the clamping frame 110 along the axial direction of the connecting rod 152.

[0068] Furthermore, the locking assembly also includes an elastic washer 171, which is located between the end of the sliding locking block 170 away from the nut 172 and the locking block. The elastic washer 171 can prevent the sliding locking block 170 from becoming loose.

[0069] For example, the nut 172 is connected to the end of the sliding locking block 170 away from the connecting rod 152 by means of a threaded connection.

[0070] Please see Figure 5 and Figure 13 In some embodiments, the first pin 160 includes a pull cap 161 and a connecting rod 162 connected together. One end of the connecting rod 162, away from the pull cap 161, is movably inserted into the sliding locking block 170. The connecting rod 162 is capable of relative movement with the sliding locking block 170 along its axial direction, so that when the fixing pin hole 1523 moves directly below the connecting rod 162, the end of the connecting rod 162 away from the pull cap 161 can be inserted into the fixing pin hole 1523. An operator can move the pull cap 161 upwards to disengage the end of the connecting rod 162 away from the fixing pin hole 1523.

[0071] In some embodiments, the clamping mechanism 100 can memorize a specific tilt angle of the workpiece. When the workpiece rotates to a specific tilt angle, the position of the fixing pin hole 1523 within the first sliding groove 1111b is a first position. By fixing the first pin 160 at the first position, when the workpiece rotates to the specific tilt angle, the end of the connecting rod 162 away from the pull cap 161 is just inserted into the fixing pin hole 1523. When the operator adjusts the tilt angle of the workpiece by rotating the adjusting member 150, whenever the adjusting handwheel 151 cannot be rotated, it can be determined that the workpiece has rotated to a specific tilt angle.

[0072] In some embodiments, since the moving distance of the connecting rod 152 along the axial direction of the connecting rod 152 in the first sliding groove 1111b has a certain multiple relationship with the rotation angle of the second bevel gear 1531, and the rotation angle of the second bevel gear 1531 has a certain multiple relationship with the rotation angle of the first bevel gear 122, when the connecting rod 152 rotates and moves in the first sliding groove 1111b, the spacing between the positions of the fixing pin hole 1523 when it faces upward is the same, and the spacing between two adjacent positions is L. When the fixing pin hole 1523 moves a distance L along the axial direction of the connecting rod 152, the rotation angle of the workpiece is the same, and the rotation angle is Y. This allows the clamping mechanism 100 to also memorize some angles related to the specific tilt angle of the workpiece.

[0073] For example, when the first pin 160 is located at point M along the axial direction of the connecting rod 152 on the clamping frame 110, the end of the connecting rod 162 away from the pull cap 161 can be inserted into the fixing pin hole 1523. At this time, the workpiece is exactly at a specific tilt angle X degrees.

[0074] If the first pin 160 is set at (M+L) of the clamping frame 110, the clamping mechanism 100 can memorize the tilt angle of the workpiece at (X+Y) degrees. That is, when the workpiece is rotated to (X+Y) degrees, the end of the connecting rod 162 away from the pull cap 161 can be inserted into the fixed pin hole 1523.

[0075] Please see Figure 4 and Figure 13 In some embodiments, the connecting rod 152 is further provided with an annular fixing groove 1522, and a fixing pin hole 1523 is formed on the inner wall of the annular fixing groove 1522. The end of the connecting rod 162 away from the pull cap 161 can be inserted into the annular fixing groove 1522 or the fixing pin hole 1523. The insertion of the end of the connecting rod 162 away from the pull cap 161 into the annular fixing groove 1522 enables the clamping mechanism 100 to memorize tilt angles other than the specific tilt angle of the workpiece.

[0076] For example, when the first pin 160 is set at a position other than M on the clamping frame 110, and the connecting rod 152 rotates and moves in the first sliding groove 1111b, the end of the connecting rod 162 away from the pull cap 161 is inserted into the annular fixing groove 1522, so that the clamping mechanism 100 remembers the tilt angle of the workpiece at this time.

[0077] In some embodiments, please refer to Figure 1 and Figure 10 The clamping mechanism 100 also includes a second pin 190, the structure of which is the same as that of the first pin 160. The second pin 190 is movably mounted on the clamping frame 110. The second pin 190 and the first pin 160 are respectively located on both sides of the connecting rod 152, and are staggered. When the connecting rod 152 moves on the clamping frame 110, one end of the second pin 190 can be inserted into the annular fixing groove 1522 or the fixing pin hole 1523. Inserting one end of the second pin 190 into the annular fixing groove 1522 or the fixing pin hole 1523 can increase the number of workpiece tilt angles that the clamping mechanism 100 can remember.

[0078] For example, when the first pin 160 is positioned at point M along the axial direction of the connecting rod 152 on the clamping frame 110, one end of the first pin 160 is inserted into the fixing pin hole 1523. At this time, the tilt angle of the workpiece is X degrees. The spacing between the positions of the fixing pin holes 1523 when they are facing upwards is the same, and the spacing between two adjacent positions is L. When the fixing pin holes 1523 move a distance L along the axial direction of the connecting rod 152, the rotation angle of the workpiece is the same, and the rotation angle is Y. When the fixing pin holes 1523 change from facing upwards to facing downwards, the distance that the fixing pin holes 1523 move along the axial direction of the connecting rod 152 is L / 2, and the rotation angle is Y / 2 degrees. When the second pin 190 is positioned at (M+L / 2), the clamping mechanism 100 can memorize the tilt angle of the workpiece at (X+Y / 2) degrees. That is, when the workpiece rotates to (X+Y / 2) degrees, one end of the second pin 190 is inserted into the fixing pin hole 1523.

[0079] For example, when the second pin 190 is positioned at a position other than M on the clamping frame 110, and the connecting rod 152 rotates and moves within the first sliding groove 1111b, one end of the second pin 190 can be inserted into the annular fixing groove 1522, thereby allowing the clamping mechanism 100 to memorize the tilt angle of the workpiece at this time.

[0080] Please see Figure 5 and Figure 13In some embodiments, the end of the connecting rod 162 facing the connecting rod 152 is fitted with an abutment plate 163; the clamping mechanism 100 also includes a locking assembly, which includes a locking screw 180 and a spring 181. The locking screw 180 is adjustablely inserted into the sliding locking block 170, one end of the spring 181 is connected to the end of the locking screw 180 facing the connecting rod 152, and the other end of the spring 181 is connected to the abutment plate 163; the connecting rod 162 is movably inserted into the locking screw 180.

[0081] The elastic force of spring 181 causes the abutment plate 163 to abut against the connecting rod 152, thereby preventing one end of the connecting rod 162 from disengaging from the annular fixing groove 1522 or from the fixing pin hole 1523. By rotating the locking screw 180, relative movement can occur between the locking screw 180 and the sliding locking block 170. When the locking screw 180 moves toward the connecting rod 152, it can further compress the spring 181, increasing the force exerted by the spring 181 on the abutment plate 163, thereby improving the stability of the abutment plate 163 against the connecting rod 152, and thus improving the stability of fixing the tilt angle of the workpiece.

[0082] For example, the locking screw 180 is threadedly connected to the sliding locking block 170.

[0083] Please see Figure 5 In some embodiments, the locking screw 180 has a pin mounting hole 1801, the connecting rod 162 is movably inserted through the pin mounting hole 1801, and the diameter of the pull cap 161 is larger than the inner diameter of the pin mounting hole 1801.

[0084] Please see Figure 13 In some embodiments, the locking screw 180 has a push groove 182 at one end near the connecting rod 152, and the spring 181 is located in the push groove 182 at one end away from the abutment plate 163 and is connected to the inner wall of the push groove 182.

[0085] In some embodiments, the second pin 190 is fixed in position on the clamping frame 110 along the axial direction of the connecting rod 152 by another set of locking components, and the second pin 190 is fixed in the annular fixing groove 1522 or fixing pin hole 1523 by another set of locking components, thereby improving the stability of the second pin 190 in the annular fixing groove 1522 or fixing pin hole 1523.

[0086] Please see Figure 4 and Figure 13In some embodiments, the connecting rod 152 is also provided with a plurality of indexing slots 1521, the spacing between two adjacent indexing slots 1521 is the same, the fixing pin hole 1523 is provided between two adjacent indexing slots 1521, and the end of the connecting rod 162 away from the pull cap 161 is provided with a conical pin head 1621 that matches the shape of the indexing slot 1521. The conical pin head 1621 can be inserted into the fixing pin hole 1523 or the indexing slot 1521.

[0087] The operator can pull the cap 161 to disengage the conical pin head 1621 from the fixing pin hole 1523, and then rotate the adjusting handwheel 151 to rotate the connecting rod 152, causing the connecting rod 152 to move within the first sliding groove 1111b, thereby allowing the conical pin head 1621 to insert into the corresponding indexing groove 1521. Since the distance the connecting rod 152 moves within the first sliding groove 1111b has a certain ratio relationship with the workpiece's tilt angle, and the spacing between adjacent indexing grooves 1521 is the same, the operator can determine the workpiece's tilt angle based on the number of times the conical pin head 1621 falls into the corresponding indexing groove 1521, based on the tactile feedback.

[0088] When the tapered pin head 1621 moves from the fixed pin hole 1523 to the indexing slot 1521 adjacent to the fixed pin hole 1523, the workpiece rotates by an angle of N degrees. When the tapered pin head 1621 moves from one indexing slot 1521 to an adjacent indexing slot 1521, the workpiece also rotates by an angle of N degrees. When the tapered pin head 1621 is inserted into the indexing slot 1521, the operator can clearly feel the damping. The operator can judge the tilt angle of the workpiece based on the number of times the damping is felt.

[0089] For example, when the conical pin head 1621 is inserted into the fixed pin hole 1523, the tilt angle of the workpiece is X degrees. When the conical pin head 1621 is inserted into the indexing groove 1521 adjacent to the fixed pin hole 1523, the operator can feel one damping. At this time, according to the different rotation directions of the adjusting handwheel 151, it can be determined that the tilt angle of the workpiece is (XN) degrees or (X+N) degrees.

[0090] Furthermore, since the indexing groove 1521 is relatively shallow, when the workpiece is adjusted to the corresponding tilt angle for processing (the conical pin head 1621 is inserted into the corresponding indexing groove 1521), the locking assembly is needed to hold the abutment plate 163 on the connecting rod 162 against the connecting rod 152, thereby preventing the conical pin head 1621 from disengaging from the indexing groove 1521.

[0091] Furthermore, the annular fixing groove 1522 is formed between two adjacent indexing grooves 1521. When the conical pin head 1621 moves from the annular fixing groove 1522 to the indexing groove 1521 adjacent to the annular fixing groove 1522, the workpiece rotates by an angle of N degrees. When the conical pin head 1621 moves from one indexing groove 1521 to an adjacent indexing groove 1521, the workpiece also rotates by an angle of N degrees.

[0092] Please see Figure 3 and Figure 6 In some embodiments, the clamping mechanism 100 further includes a scale 1111a and a dial 123. The scale 1111a is mounted on the first support 111. The dial 123 is mounted on the sliding platform 120 and is used to display the rotation angle of the sliding platform 120, i.e., the tilt angle of the workpiece. Since the moving distance of the connecting rod 152 along the axial direction within the first sliding groove 1111b has a certain multiple relationship with the rotation angle of the second bevel gear 1531, and the rotation angle of the second bevel gear 1531 has a certain multiple relationship with the rotation angle of the first bevel gear 122, the scale lines on the scale 1111a can correspond to the scale lines on the dial 123, so that the value of the scale line pointed to by the pointer on the scale 1111a can intuitively display the tilt angle of the workpiece.

[0093] For example, the dial 123 is located at the end of the sliding platform 120 away from the push plate 130, and the side with the scale line is exposed outside the first support 111. The first support 111 is provided with a first pointer (not shown). When the dial 123 rotates with the sliding platform 120, the first pointer can point to the corresponding scale line on the dial 123.

[0094] For example, a scale 1111a is disposed on the first base 1111, and the extension direction of the scale 1111a is the same as the axial direction of the connecting rod 152. A second pointer (not shown) is sleeved on the first pin 160. The second pointer includes a connected collar and an arrow. The collar is sleeved on the sliding locking block 170 and is located on the side of the nut 172 away from the connecting rod 152. When the arrow moves with the first pin 160 in the first sliding groove 1111b, the arrow can point to the corresponding scale line on the scale 1111a.

[0095] It is worth noting that the values ​​of the scale lines on the dial 123 pointed to by the first pointer and the scale lines on the dial 1111a pointed to by the second pointer are both the tilt angle of the workpiece.

[0096] Please see Figure 1 to, Figure 14The present invention also provides a CNC machining grinding machine 1000, which includes a base 200, a coolant collection tank 400, a grinding wheel 300, and a clamping mechanism 100 according to any of the above embodiments. The base 200 is movably disposed within the coolant collection tank 400, and the clamping mechanism 100 is disposed on the base 200, with the grinding wheel 300 facing the clamping mechanism 100. The base 200 can drive the clamping mechanism 100 to move within the coolant collection tank 400, so that the grinding wheel 300 can perform grinding on the workpiece fixed on the clamping mechanism 100.

[0097] In some embodiments, the CNC machining grinding machine 1000 further includes a drive member (not shown) and a drive rod (not shown), the output end of the drive member is connected to one end of the drive rod, and the end of the drive rod away from the drive member is connected to the base 200, so that the drive member can drive the base 200 to move within the coolant collection tank 400.

[0098] In some embodiments, the fixing seat 112 of the clamping frame 110 is provided with a first magnetic attractor, and the base 200 is provided with a second magnetic attractor with the opposite magnetic properties to the first magnetic attractor, so that the fixing seat 112 is fixed to the base 200 by magnetic attraction, thereby fixing the clamping mechanism 100 to the base 200.

[0099] In some embodiments, the CNC machining grinding machine 1000 further includes a spraying mechanism (not shown) that can spray coolant onto the workpiece and the grinding wheel 300, and a coolant collection tank 400 that can collect coolant flowing down from the workpiece or the grinding wheel 300.

[0100] The CNC grinding machine 1000 can use CNC technology to grind the surface of the workpiece using the grinding wheel 300.

[0101] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0102] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A clamping mechanism for a CNC machining grinding machine, characterized in that, include: Clamping frame; A sliding table is rotatably mounted on the clamping frame, and the sliding table is used to fix the workpiece; A rotary adjustment component is movably inserted through the clamping frame and is connected to the sliding platform in a transmission manner. When the rotary adjustment component moves, it can drive the clamping frame to rotate. A fixing pin hole is provided on the rotary adjustment component. The first pin is movably mounted on the clamping frame. When the rotating adjustment member moves within the clamping frame, one end of the first pin can be inserted into the fixing pin hole; The rotating adjustment component is also provided with an annular fixing groove, and the fixing pin hole is opened on the inner wall of the annular fixing groove. One end of the first pin can be inserted into the annular fixing groove or the fixing pin hole. The clamping mechanism of the CNC machining grinding machine further includes a second pin, which is movably disposed on the clamping frame. The second pin and the first pin are respectively disposed on both sides of the rotary adjustment member, and the second pin and the first pin are misaligned. When the rotary adjustment member moves on the clamping frame, one end of the second pin can be inserted into the annular fixing groove or the fixing pin hole.

2. The clamping mechanism of the CNC machining grinding machine according to claim 1, characterized in that, The rotating adjustment component includes a connecting rod and a sliding rod. The connecting rod is movably inserted through the sliding platform, and one end of the sliding rod is adjustablely inserted through one end of the connecting rod. The connecting rod can drive the sliding rod to rotate. The fixing pin hole is formed on the connecting rod. The sliding platform is provided with a first bevel gear, and the end of the sliding rod away from the connecting rod is provided with a second bevel gear that meshes with the first bevel gear.

3. The clamping mechanism of the CNC machining grinding machine according to claim 2, characterized in that, The transmission ratio between the second bevel gear and the first bevel gear is greater than 1.

4. The clamping mechanism of the CNC machining grinding machine according to claim 1, characterized in that, The rotary adjustment component is also provided with multiple indexing slots, and the spacing between two adjacent indexing slots is the same. The fixing pin hole is opened between two adjacent indexing slots. One end of the first pin is provided with a conical pin head that matches the shape of the indexing slot. The conical pin head can be inserted into the fixing pin hole or the indexing slot.

5. The clamping mechanism of the CNC machining grinding machine according to claim 1, characterized in that, The clamping frame has a first sliding groove, and a locking block is provided in the first sliding groove; the rotary adjustment member is adjustablely inserted into the first sliding groove; the clamping mechanism of the CNC machining grinding machine also includes a locking assembly, which includes a sliding locking block and a nut. The sliding locking block is movably disposed in the first sliding groove, with one end of the sliding locking block located on the side of the locking block near the rotary adjustment member, and the other end of the sliding locking block located on the side of the locking block away from the rotary adjustment member. The nut is adjustablely sleeved on the end of the sliding locking block away from the rotary adjustment member; the first pin is movably inserted into the sliding locking block.

6. The clamping mechanism of the CNC machining grinding machine according to claim 5, characterized in that, The first pin has an abutment plate fitted onto one end facing the rotary adjustment member; the clamping mechanism of the CNC machining grinding machine further includes a locking assembly, which includes a locking screw and a spring. The locking screw is adjustablely inserted into the sliding locking block, one end of the spring is connected to the end of the locking screw facing the rotary adjustment member, and the other end of the spring is connected to the abutment plate; the first pin is movably inserted into the locking screw.

7. The clamping mechanism of the CNC machining grinding machine according to claim 1, characterized in that, The clamping mechanism further includes a push plate and a clamping block. The push plate is fixed on the sliding table, and the clamping block is movably disposed on the sliding table. The space between the clamping block and the push plate is used to fix the workpiece.

8. A CNC machining grinding machine, characterized in that, The device includes a base, a coolant collection tank, a grinding wheel, and a clamping mechanism as described in any one of claims 1-7. The base is movably disposed in the coolant collection tank, the clamping mechanism is disposed on the base, the grinding wheel faces the clamping mechanism, and the grinding wheel is used to grind the workpiece fixed on the clamping mechanism.

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