Polishing device for mold production

Abstract

The grinding device for mold production comprises a position adjusting base, a detection assembly and a grinding support, the detection assembly comprises upper detection frames, upper pin shafts, detection rods and pulleys, the two upper detection frames are movably arranged on one side of the position adjusting base, the upper pin shafts are rotatably installed in the upper detection frames, the detection rods are slidably inserted in the upper pin shafts, and the grinding supports are arranged on the upper detection frames. The grinding support is movably arranged on the position adjusting base, and an overhead grinding wheel at the position of a grinding point of the grinding support is in linkage connection with the detection assembly. The two sets of linked detection rods are arranged on the position adjusting base, so that in the process of grinding a mold cavity, according to the shape change of the cavity wall, the mold cavity can be ground according to the shape change of the cavity wall; and the force application direction of one side of the polishing point is adjusted in a self-adaptive mode, so that the force bearing point of the polishing belt perpendicularly acts on the cavity surface all the time, the polishing efficiency of all point positions of the mold is consistent, and the polishing effect is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of grinding equipment, in particular to a grinding device for mold production. Background Art

[0002] Mold grinding is an important process to improve the surface finish of the mold. Its main purpose is to make the mold surface smooth to ensure the quality of the molded product and improve the demoulding efficiency.

[0003] Mold polishing includes mechanical polishing, chemical polishing, electrolytic polishing and ultrasonic polishing. Mechanical polishing removes surface protrusions through cutting, plastic deformation of the material surface, etc. to obtain a smooth surface. Commonly used tools include oilstone strips, wool wheels and sandpaper. Chemical polishing uses chemical media to preferentially dissolve the microscopic protrusions on the material surface. It is suitable for workpieces with complex shapes. Electrolytic polishing selectively dissolves the tiny protrusions on the material surface to make the surface smooth.

[0004] When commonly used mechanical polishing is used to process mold cavities, due to the presence of a large number of inclined walls and curved walls on the mold cavity walls, when using conventional polishing belts, it is necessary to manually control the contact angle on the polishing points to ensure that the polishing efficiency of each point in the cavity is consistent. Otherwise, it is easy to cause uneven polishing effects, resulting in errors in the thickness of the cavity wall and affecting the molding accuracy of the mold. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of an embodiment of the present invention is to provide a grinding device for mold production to solve the problems in the above-mentioned background technology.

[0006] In order to realize the above technical solution, the present invention provides the following technical solution:

[0007] A grinding device for mold production, the grinding device for mold production having a first direction, a second direction and a third direction relative to each other, the grinding device for mold production comprising a bracket assembly, the bracket assembly comprising a position adjustment base, the position adjustment base being movably arranged in the first direction and the third direction;

[0008] A detection component, wherein the detection component comprises an upper detection frame, an upper pin shaft, an upper insertion rod, a detection rod and a pulley, wherein two groups of the upper detection frames are movably arranged on one side of the adjustment base, an upper pin shaft is rotatably installed in the upper detection frame, two ends of the upper insertion rod are slidably inserted in the two groups of upper detection frames, one end of the detection rod is slidably inserted in the upper pin shaft along a third direction, and the other end of the detection rod is fixedly connected with a pulley;

[0009] A grinding assembly, the grinding assembly comprises a grinding bracket, an upper grinding wheel, a side transmission wheel, a bottom drive wheel and a grinding belt, the grinding bracket is movably arranged on the adjustment base along a third direction, the upper grinding wheel, the side transmission wheel and the bottom drive wheel are all rotatably assembled on the grinding bracket, the upper grinding wheel is arranged at the highest point in the third direction, the two groups of side transmission wheels are arranged between the upper grinding wheel and the bottom drive wheel, the bottom drive wheel is arranged at the lowest point in the third direction, and the grinding belt is wound around the upper grinding wheel, the side transmission wheel and the bottom drive wheel.

[0010] As a further solution of the present invention, the grinding device for mold production includes a frame assembly, which includes a frame base, a frame beam, a frame roller, a guide frame and a clamping arm. Two groups of frame beams are fixedly mounted on the frame base, a plurality of frame rollers are rotatably arranged on the frame beam, and a guide frame is also fixedly mounted on the frame beam. The clamping arm is slidably mounted in the frame beam for positioning and clamping the mold to be ground.

[0011] As a further solution of the present invention, the bracket assembly also includes a positioning column, a lifting bracket, a main screw and a secondary screw. Several of the positioning columns are fixedly arranged on the traveling frame base, and the lifting bracket is slidably assembled on the positioning column along a third direction. One end of the main screw is rotatably arranged on the traveling frame base, and the other end of the main screw is meshed with the lifting bracket. The secondary screw is arranged along the first direction and rotatably arranged on the lifting bracket, and the adjustment base is slidably arranged on the lifting bracket along the first direction and meshed with the secondary screw.

[0012] As a further scheme of the present invention, the detection assembly also includes an inclination adjustment rod, a lower detection frame, a lower pin shaft, a lower insertion rod, a lifting rod and a connecting frame. The inclination adjustment rod is fixedly assembled on one side of the upper insertion rod, and two groups of lower detection frames are movably arranged at one end of the adjustment base. One end of the lower pin shaft is rotatably assembled in the lower detection frame, and the other end of the lower pin shaft is fixedly connected to the upper detection frame. Both ends of the lower insertion rod are slidably inserted in the two groups of lower detection frames, one end of the lifting rod is inserted in the lower insertion rod, and the other end of the lifting rod is slidably arranged on the adjustment base along a third direction, and one end of the lifting rod is also fixedly connected to the connecting frame.

[0013] As a further solution of the present invention, a shaft of the top grinding wheel is clearance-matched with the grinding bracket.

[0014] As a further solution of the present invention, the grinding assembly also includes a pressure adjustment arm and a linkage shaft. The two groups of pressure adjustment arms are rotatably sleeved on both sides of the shaft body of the top grinding wheel, and a linkage shaft is fixedly connected between the two groups of pressure adjustment arms.

[0015] As a further solution of the present invention, the grinding assembly also includes an adjusting block, an adjusting rod and a reversing shaft ring. One end of the adjusting block is rotatably assembled on the linkage shaft, and the other end of the adjusting block is fixedly connected to the adjusting rod. One end of the reversing shaft ring is rotatably set on the grinding bracket, and the other end of the reversing shaft ring is slidably sleeved on the adjusting rod, and the adjusting block and the reversing shaft ring are elastically connected.

[0016] As a further solution of the present invention, the grinding assembly also includes a driven gear, an insert plate slot, a driving rack and a driven rack. The driven gear is fixedly connected to the pressure adjustment arm, the insert plate slot is fixedly arranged on one side of the grinding bracket, and the driving rack and the driven rack are both slidably arranged on the insert plate slot along a third direction.

[0017] As a further scheme of the present invention, the grinding assembly also includes a first transmission block, a transmission gear, a first damper, a bottom bracket, a second transmission block and a second damper, one end of the first transmission block is elastically slidably assembled in the driven rack, and the other end of the first transmission block is fixedly connected to the driving rack, the transmission gear is rotatably assembled on the grinding bracket, one end of the transmission gear is meshed and connected with the driven gear, and the other end of the transmission gear is meshed and connected with the driven rack, the first damper is fixedly arranged on the grinding bracket and assembled and connected with the driven rack, the bottom bracket is fixedly arranged at the bottom of the grinding bracket, one end of the second transmission block is elastically slidably assembled on the bottom bracket along the third direction, and the other end of the second transmission block is fixedly connected to the connecting frame.

[0018] As a further solution of the present invention, the polishing device for mold production also includes a transmission assembly, which includes a first transmission arm, a second transmission arm, a center shaft pin and a final drive wheel. One end of the first transmission arm is rotatably mounted on the inclination adjustment rod, and the other end of the first transmission arm is rotatably connected to the second transmission arm through the center shaft pin. The end of the second transmission arm is rotatably equipped with a final drive wheel, and the final drive wheel is fixedly arranged on the polishing bracket, and one end of the final drive wheel is connected to the center shaft pin and the inclination adjustment rod through a synchronous belt, and the other end of the final drive wheel is meshed with the drive rack.

[0019] By adopting the above technical solution, the present invention has the following beneficial effects:

[0020] The present invention provides two sets of linked first detection rods and second detection rods on the adjustment base. During the process of grinding the mold cavity, the force direction on one side of the grinding point can be adaptively adjusted according to the shape change of the cavity wall, so that the force point of the grinding belt always acts vertically on the cavity surface, thereby ensuring that the grinding efficiency at each point of the mold is consistent, thereby ensuring the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of a grinding device for mold production provided in one embodiment of the present invention.

[0023] Figure 2 It is a schematic structural diagram of a grinding device for mold production provided in one embodiment of the present invention.

[0024] Figure 3 It is a schematic structural diagram of a support assembly in a grinding device for mold production provided in an embodiment of the present invention.

[0025] Figure 4 It is a schematic diagram of the partial structure of a grinding device for mold production provided in an embodiment of the present invention.

[0026] Figure 5 for Figure 4 An enlarged schematic diagram of the figure marked A.

[0027] Figure 6 for Figure 4 An enlarged schematic diagram of the figure marked B.

[0028] Figure 7 A schematic diagram of the side structure of a grinding device for mold production provided in one embodiment of the invention.

[0029] Figure 8 for Figure 7 An enlarged schematic diagram of the figure marked C.

[0030] Fig. 9 for Figure 7 An enlarged schematic diagram of the figure marked D.

[0031] Fig.10 It is a schematic structural diagram of a grinding component in a grinding device for mold production provided in an embodiment of the present invention.

[0032] Figure numerals: 1-frame assembly, 101-frame base, 102-frame beam, 103-frame roller, 104-guide frame, 105-clamping arm, 2-bracket assembly, 201-positioning column, 202-lifting bracket, 203-main screw rod, 204-secondary screw rod, 205-positioning base, 3-detection assembly, 301-upper detection frame, 302-upper pin shaft, 303-upper insertion rod, 304-tilt adjustment rod, 305-detection rod, 306-pulley, 307-lower detection frame, 308-lower pin shaft, 309-lower insertion rod, 310-lifting rod, 311-connecting frame, 4-grinding assembly, 401-grinding bracket, 40 2-top grinding wheel, 403-side transmission wheel, 404-bottom driving wheel, 405-driver, 406-grinding belt, 407-pressure adjustment arm, 408-linkage shaft, 409-adjusting block, 410-positioning plug rod, 411-reversing shaft ring, 412-driven gear, 413-plug plate slot, 414-driving rack, 415-driven rack, 416-first transmission block, 417-transmission gear, 418-first damper, 419-bottom bracket, 420-second transmission block, 421-second damper, 5-transmission assembly, 501-first transmission arm, 502-second transmission arm, 503-middle shaft pin, 504-final driving wheel. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[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] See also Figure 1-Figure 10The grinding device for mold production in one embodiment of the present invention includes a rack assembly 1, wherein the rack assembly 1 includes a rack base 101, a rack beam 102, a rack roller 103, a guide frame 104 and a clamping arm 105. Two sets of rack beams 102 are fixedly mounted on the rack base 101, a plurality of rack rollers 103 are rotatably arranged on the rack beam 102, a guide frame 104 is also fixedly mounted on the rack beam 102, and the clamping arm 105 is slidably mounted in the rack beam 102. for positioning and clamping the mold to be polished; a support assembly 2, the support assembly 2 includes a positioning base 205, the positioning base 205 is movably arranged in the first direction x and the third direction z; a detection assembly 3, the detection assembly 3 includes an upper detection frame 301, an upper pin 302, an upper insertion rod 303, a detection rod 305 and a pulley 306, two groups of the upper detection frames 301 are movably arranged on one side of the positioning base 205, and the upper pin 302 is rotatably installed in the upper detection frame 301 , the two ends of the upper insertion rod 303 are slidably inserted in the two groups of upper detection frames 301, one end of the detection rod 305 is slidably inserted in the upper pin shaft 302 along the third direction z, and the other end of the detection rod 305 is fixedly connected with a pulley 306; grinding assembly 4, the grinding assembly 4 includes a grinding bracket 401, a top grinding wheel 402, a side transmission wheel 403, a bottom driving wheel 404 and a grinding belt 406, the grinding bracket 401 is movably arranged on the adjustment base 205 along the third direction z, The top grinding wheel 402, the side transmission wheel 403 and the bottom driving wheel 404 are all rotatably assembled on the grinding bracket 401, the top grinding wheel 402 is arranged at the highest point in the third direction z, the two groups of side transmission wheels 403 are arranged between the top grinding wheel 402 and the bottom driving wheel 404, the bottom driving wheel 404 is arranged at the lowest point in the third direction z, and the grinding belt 406 is wound around the top grinding wheel 402, the side transmission wheel 403 and the bottom driving wheel 404.

[0036] In actual application of this embodiment, during the use of the grinding device, the two sets of frame beams 102 arranged on the frame base 101 are used to carry the mold body to be ground to move along the second direction y, and the mold cavity surface faces the side of the adjustment base 205, the frame rollers 103 on the frame beams 102 roll and abut against the side edge of the mold, and the clamping arms 105 slidably assembled on the guide frame 104 are used to position and clamp the mold so that the mold can move in a directional manner in the second direction y. The adjustment base 205 can move freely in the xoz plane, and the movable Two groups of upper detection racks 301 are provided, and the two groups of upper detection racks 301 are provided with a first detection rod a1 and a second detection rod a2. The distance between the first detection rod a1 and the second detection rod a2 is fixed, and the first detection rod a1 and the second detection rod a2 are limited to move in a third direction z. The ends of the first detection rod a1 and the second detection rod a2 are provided with pulleys 306. When the mold to be polished moves along the second direction y, the adjustment base 205 provided at a fixed height position in the third direction z can make the first detection rod a1 and the second detection rod a2 move with the mold. The cavity wall is rolled and fitted. Since the inner wall of the mold cavity has curved walls and inclined walls, the heights of the two sets of pulleys 306 in the third direction z are in a dynamic change process. The middle point between the abutment points of the first detection rod a1 and the second detection rod a2 is taken as the grinding point. When there is a positive and negative height difference between the first detection rod a1 and the second detection rod a2 in the third direction z, that is, the grinding point and the inner wall of the cavity should be in an inclined state, so that the grinding point is perpendicular to the cavity surface. The grinding bracket 401 is movably arranged on the adjustment base 205 along the third direction z, and the driver 405 is driven During the rotation of the bottom driving wheel 404, the top grinding wheel 402 and the side transmission wheel 403 are driven to rotate synchronously through the grinding belt 406, so that the grinding point of the grinding belt 406 on the side of the top grinding wheel 402 contacts the inner wall of the cavity, and by adjusting the positions of the first detection rod a1 and the second detection rod a2, the top grinding wheel 402 on the linkage side can synchronously adjust the force direction of the grinding point, so that when the top grinding wheel 402 presses the grinding belt 406 against the inner wall side of the cavity, its force direction is always perpendicular to the cavity surface, so as to ensure that the inclined surfaces and curved surfaces of the cavity obtain a stable grinding effect.

[0037] Furthermore, the influence of the distance between the first detection rod a1 and the second detection rod a2 on the detection result is negligible, and will not be described in detail here.

[0038] See also Figure 3In a preferred embodiment of the present invention, the bracket assembly 2 also includes a positioning column 201, a lifting bracket 202, a main screw rod 203 and a secondary screw rod 204. Several of the positioning columns 201 are fixedly arranged on the traveling frame base 101, and the lifting bracket 202 is slidably assembled on the positioning column 201 along the third direction z. One end of the main screw rod 203 is rotatably arranged on the traveling frame base 101, and the other end of the main screw rod 203 is meshed with the lifting bracket 202. The secondary screw rod 204 is arranged along the first direction x and is rotatably arranged on the lifting bracket 202. The positioning base 205 is slidably arranged on the lifting bracket 202 along the first direction x and is meshed with the secondary screw rod 204.

[0039] In actual application of this embodiment, the lifting bracket 202 is slidably assembled on the positioning column 201 along the third direction z, and the main screw 203 is driven to rotate by an external driving source, so as to control the lifting and lowering of the lifting bracket 202 in the third direction z, thereby adjusting the position of the grinding point according to the thickness of different molds. The adjustment base 205 is controlled by the auxiliary screw 204 in the first direction x, so that the grinding point can be moved in the first direction x, and the grinding times can be adjusted according to the width of the cavity and the width of the grinding belt 406.

[0040] See also Figure 5 and Figure 6 In a preferred embodiment of the present invention, the detection component 3 also includes an inclination adjustment rod 304, a lower detection frame 307, a lower pin 308, a lower insertion rod 309, a lifting rod 310 and a connecting frame 311, the inclination adjustment rod 304 is fixedly assembled on one side of the upper insertion rod 303, the two groups of lower detection frames 307 are movably arranged at one end of the adjustment base 205, one end of the lower pin 308 is rotatably assembled in the lower detection frame 307, and the other end of the lower pin 308 is fixedly connected to the upper detection frame 301, both ends of the lower insertion rod 309 are slidably inserted in the two groups of lower detection frames 307, one end of the lifting rod 310 is inserted in the lower insertion rod 309, and the other end of the lifting rod 310 is slidably arranged on the adjustment base 205 along the third direction z, and one end of the lifting rod 310 is also fixedly connected to the connecting frame 311.

[0041] In actual application of this embodiment, the inclination adjustment rod 304 is fixedly arranged on one side of the upper insertion rod 303. Since the two groups of detection rods 305 are both slidably assembled on the adjustment base 205 along the third direction z, when there is a height difference between the first detection rod a1 and the second detection rod a2, the two groups of upper detection frames 301 and lower detection frames 307 are both synchronously lifted and lowered in the third direction z, so that the upper insertion rod 303 slidably assembled between the upper detection frames 301 and the lower insertion rod 309 slidably assembled between the lower detection frames 307 rotate synchronously. Therefore, when there is a height difference between the first detection rod a1 and the second detection rod a2 in the third direction z, the inclination adjustment rod 3 04 can rotate a fixed angle according to the height difference. Since the detection rod 305 is also provided with a spring, and the upper pin shaft 302 and the adjustment base 205 are elastically connected, when the first detection rod a1 and the second detection rod a2 are simultaneously lifted and lowered in the third direction z, the lifting rod 310 and the connecting frame 311 can be synchronously pulled to lift and lower in the third direction z. The connecting frame 311 on one side of the lifting rod 310 is linked to the grinding bracket 401, so the grinding assembly 4 can be controlled to lift and lower in the third direction z as a whole, so that the height of the grinding point in the third direction z is synchronously adjusted according to the structure of the inner wall of the cavity, so that the pressure between the grinding point and the inner wall of the cavity is within the dynamic threshold range.

[0042] Furthermore, the axis of the top grinding wheel 402 is clearance-matched with the grinding bracket 401, so that when the axis side of the top grinding wheel 402 is subjected to external force, the force direction of the top grinding wheel 402 on the grinding point side can be changed, so that the force direction is perpendicular to the cavity surface, while ensuring the contact state between the grinding belt 406 and the grinding point, it can also ensure that the inclined surfaces and curved surfaces of the cavity obtain a stable grinding effect.

[0043] See also Fig.10 In a preferred embodiment of the present invention, the grinding assembly 4 also includes a pressure adjustment arm 407, a linkage shaft 408, an adjustment block 409, an adjustment rod 410 and a reversing shaft ring 411. The two groups of pressure adjustment arms 407 are respectively rotatably sleeved on both sides of the shaft body of the top grinding wheel 402, and a linkage shaft 408 is fixedly connected between the two groups of pressure adjustment arms 407. One end of the adjustment block 409 is rotatably assembled on the linkage shaft 408, and the other end of the adjustment block 409 is fixedly connected to the adjustment rod 410. One end of the reversing shaft ring 411 is rotatably set on the grinding bracket 401, and the other end of the reversing shaft ring 411 is slidably sleeved on the adjustment rod 410, and the adjustment block 409 and the reversing shaft ring 411 are elastically connected.

[0044] When this embodiment is actually used, the pressure adjustment arm 407 is sleeved on the axial side of the overhead grinding wheel 402, and one end of the pressure adjustment arm 407 is fixedly equipped with a linkage shaft 408, and an adjustment block 409 is rotatably installed on the linkage shaft 408. An adjustment plug 410 is fixedly arranged on the adjustment block 409, and the adjustment plug 410 is slidably inserted in the reversing shaft ring 411, and the two ends of the reversing shaft ring 411 are rotatably installed on the grinding bracket 401. When the pressure adjustment arm 407 rotates in the yoz plane, since a spring is provided between the adjustment block 409 and the reversing shaft ring 411, the top grinding wheel 402 can drive the grinding belt 406 to abut against the inner wall of the cavity through the extrusion of the adjustment block 409 under the action of elastic force, and the pressure direction is the same as the swinging direction of the pressure adjustment arm 407. Therefore, the pressure position of the grinding point on one side of the overhead grinding wheel 402 can be adjusted by rotating the pressure adjustment arm 407.

[0045] See also Fig.10 In a preferred embodiment of the present invention, the grinding assembly 4 also includes a driven gear 412, an insert plate slot 413, a driving rack 414 and a driven rack 415, the driven gear 412 is fixedly connected to the pressure adjustment arm 407, the insert plate slot 413 is fixedly arranged on one side of the grinding bracket 401, and the driving rack 414 and the driven rack 415 are both slidably arranged on the insert plate slot 413 along the third direction z.

[0046] In actual application of this embodiment, the driven gear 412 is fixedly connected to the pressure adjustment arm 407 for controlling the rotation direction and rotation angle of the pressure adjustment arm 407. A driving rack 414 and a driven rack 415 are slidably provided on the plug-in plate slot 413, and the driven rack 415 is linked to the driven gear 412. By controlling the driven rack 415 to move in the third direction z, the rotation angle of the driven gear 412 in the yoz plane can be synchronously adjusted, so that the pressure adjustment arm 407 can synchronously adjust the force direction of the grinding point.

[0047] See also Fig.10In a preferred embodiment of the present invention, the grinding assembly 4 also includes a first transmission block 416, a transmission gear 417, a first damper 418, a bottom bracket 419, a second transmission block 420 and a second damper 421, one end of the first transmission block 416 is elastically slidably assembled in the driven rack 415, the other end of the first transmission block 416 is fixedly connected to the driving rack 414, the transmission gear 417 is rotatably assembled on the grinding bracket 401, one end of the transmission gear 417 is meshed and connected with the driven gear 412, and the other end of the transmission gear 417 is meshed and connected with the driven rack 415, the first damper 418 is fixedly arranged on the grinding bracket 401 and assembled and connected with the driven rack 415, the bottom bracket 419 is fixedly arranged at the bottom of the grinding bracket 401, one end of the second transmission block 420 is elastically slidably assembled on the bottom bracket 419 along the third direction z, and the other end of the second transmission block 420 is fixedly connected to the connecting frame 311.

[0048] In actual application of this embodiment, the first transmission block 416 is limitedly slidably assembled in the driven rack 415, and both ends of the first transmission block 416 are elastically connected to the driven rack 415. When the driving rack 414 slides along the third direction z in the driving state, the first transmission block 416 fixedly connected to one side of the driving rack 414 moves synchronously along the third direction z, and during the movement, the first transmission block 416 can use the thrust of its side spring to drive the driven rack 415 to move in the third direction z. When the driven rack 415 is engaged with the driving transmission gear 417 to rotate, it can controllably and synchronously drive the driven gear 412 to rotate. Since the movable shaft of the first damper 418 is fixedly assembled on the driven rack 415, the first damper 418 can limit the movement of the driven rack 415 when the spring pushes the driven rack 415 to move along the third direction z. The sliding speed of the driven rack 415 is adjusted so that the driven rack 415 moves at a low speed, so that there is a delay between the movement of the first detection rod a1 and the second detection rod a2 and the lifting and lowering of the driven rack 415, so that after the first detection rod a1 and the second detection rod a2 leave the detection position at any point, the grinding point on one side of the top grinding wheel 402 moves to the detection point with a delay, so that the current grinding point always maintains a delay state with the current detection point, and the second transmission block 420 is elastically slidably assembled in the bottom bracket 419. Similarly to the above, since one end of the second transmission block 420 is fixedly connected to one side of the connecting frame 311, when the connecting frame 311 pulls the second transmission block 420 to move in the third direction z, the second damper 421 on the bottom side of the bottom bracket 419 can limit the movement speed of the bottom bracket 419, so that the bottom bracket 419 moves with a delay.

[0049] See also Fig. 9In a preferred embodiment of the present invention, the mold production grinding device also includes a transmission assembly 5, which includes a first transmission arm 501, a second transmission arm 502, a center shaft pin 503 and a final drive wheel 504. One end of the first transmission arm 501 is rotatably sleeved on the inclination adjustment rod 304, and the other end of the first transmission arm 501 is rotatably connected to the second transmission arm 502 through the center shaft pin 503. The end of the second transmission arm 502 is rotatably equipped with a final drive wheel 504, and the final drive wheel 504 is fixedly arranged on the grinding bracket 401, and one end of the final drive wheel 504 is transmission-connected to the center shaft pin 503 and the inclination adjustment rod 304 through a synchronous belt, and the other end of the final drive wheel 504 is meshed and connected with the drive rack 414.

[0050] In actual application of this embodiment, one end of the first transmission arm 501 is rotatably sleeved on the inclination adjustment rod 304, and the other end of the first transmission arm 501 is rotatably inserted with a central shaft pin 503, one end of the second transmission arm 502 is rotatably sleeved on the central shaft pin 503, and the other end of the second transmission arm 502 is rotatably sleeved on the final drive wheel 504, and the final drive wheel 504 is fixedly rotatably installed on the grinding bracket 401, and the inclination adjustment rod 304, the central shaft pin 503 and the final drive wheel 504 are connected by synchronous belt transmission, so that when the first detection rod a1 and the second detection rod a2 drive the inclination adjustment rod 304 to rotate, the final drive wheel 5 04 can rotate synchronously in the yoz plane, and drive the driving rack 414 to slide through the meshing drive wheel 504. The driving rack 414 can synchronously drive the first transmission block 416 to move during the movement along the third direction z. The first transmission block 416 can synchronously drive the driven rack 415 to move in the third direction z when sliding, and drive the transmission gear 417 to rotate through the tooth groove on one side of the driven rack 415. The transmission gear 417 drives the driven gear 412 to rotate in the meshing driving state, so that the pressure adjustment arm 407 rotates in the yoz plane, and then adjusts the force direction of the grinding point, so that the force direction is kept perpendicular to the cavity surface.

[0051] The above-mentioned embodiment of the present invention provides a grinding device for mold production. By arranging two sets of linked first detection rods a1 and second detection rods a2 on the adjustment base 205, the force direction on one side of the grinding point can be adaptively adjusted according to the shape change of the cavity wall during the grinding of the mold cavity, so that the force point of the grinding belt always acts vertically on the cavity surface, thereby ensuring that the grinding efficiency at each point of the mold is consistent, thereby ensuring the grinding effect.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grinding device for mold production, the grinding device for mold production having a first direction, a second direction and a third direction relative to each other, characterized in that: The mold production grinding device comprises: A bracket assembly, the bracket assembly comprising a position adjustment base, the position adjustment base being movably arranged in a first direction and a third direction; A detection component, wherein the detection component comprises an upper detection frame, an upper pin shaft, an upper insertion rod, a detection rod and a pulley, wherein two groups of the upper detection frames are movably arranged on one side of the adjustment base, an upper pin shaft is rotatably installed in the upper detection frame, two ends of the upper insertion rod are slidably inserted in the two groups of upper detection frames, one end of the detection rod is slidably inserted in the upper pin shaft along a third direction, and the other end of the detection rod is fixedly connected with a pulley; A grinding assembly, the grinding assembly comprises a grinding bracket, an upper grinding wheel, a side transmission wheel, a bottom drive wheel and a grinding belt, the grinding bracket is movably arranged on the adjustment base along a third direction, the upper grinding wheel, the side transmission wheel and the bottom drive wheel are all rotatably assembled on the grinding bracket, the upper grinding wheel is arranged at the highest point in the third direction, the two groups of side transmission wheels are arranged between the upper grinding wheel and the bottom drive wheel, the bottom drive wheel is arranged at the lowest point in the third direction, and the grinding belt is wound around the upper grinding wheel, the side transmission wheel and the bottom drive wheel.

2. A grinding device for mold production according to claim 1, characterized in that: The grinding device for mold production includes a frame assembly, which includes a frame base, a frame beam, a frame roller, a guide frame and a clamping arm. Two groups of frame beams are fixedly installed on the frame base, a plurality of frame rollers are rotatably arranged on the frame beam, and a guide frame is also fixedly installed on the frame beam. The clamping arm is slidably installed in the frame beam and is used to position and clamp the mold to be ground.

3. A grinding device for mold production according to claim 1, characterized in that: The bracket assembly also includes a positioning column, a lifting bracket, a main screw and a secondary screw. Several of the positioning columns are fixedly arranged on the traveling frame base. The lifting bracket is slidably assembled on the positioning column along a third direction. One end of the main screw is rotatably arranged on the traveling frame base, and the other end of the main screw is meshed with the lifting bracket. The secondary screw is arranged along a first direction and is rotatably arranged on the lifting bracket. The adjustment base is slidably arranged on the lifting bracket along the first direction and meshed with the secondary screw.

4. A grinding device for mold production according to claim 1, characterized in that: The detection assembly also includes an inclination adjustment rod, a lower detection frame, a lower pin shaft, a lower insertion rod, a lifting rod and a connecting frame. The inclination adjustment rod is fixedly assembled on one side of the upper insertion rod, and two groups of lower detection frames are movably arranged at one end of the adjustment base. One end of the lower pin shaft is rotatably assembled in the lower detection frame, and the other end of the lower pin shaft is fixedly connected to the upper detection frame. Both ends of the lower insertion rod are slidably inserted in the two groups of lower detection frames, one end of the lifting rod is inserted in the lower insertion rod, and the other end of the lifting rod is slidably arranged on the adjustment base along a third direction, and one end of the lifting rod is also fixedly connected to the connecting frame.

5. A grinding device for mold production according to claim 1, characterized in that: The shaft of the top grinding wheel is clearance-matched with the grinding bracket.

6. A grinding device for mold production according to claim 1, characterized in that: The grinding assembly also includes a pressure adjustment arm and a linkage shaft. The two groups of pressure adjustment arms are rotatably sleeved on both sides of the shaft body of the top grinding wheel respectively, and a linkage shaft is fixedly connected between the two groups of pressure adjustment arms.

7. A grinding device for mold production according to claim 6, characterized in that: The grinding assembly also includes an adjusting block, an adjusting rod and a reversing shaft ring. One end of the adjusting block is rotatably assembled on the linkage shaft, and the other end of the adjusting block is fixedly connected to the adjusting rod. One end of the reversing shaft ring is rotatably set on the grinding bracket, and the other end of the reversing shaft ring is slidably sleeved on the adjusting rod, and the adjusting block and the reversing shaft ring are elastically connected.

8. A grinding device for mold production according to claim 6, characterized in that: The grinding assembly also includes a driven gear, a plug-in plate slot, a driving rack and a driven rack. The driven gear is fixedly connected to the pressure adjustment arm, the plug-in plate slot is fixedly arranged on one side of the grinding bracket, and the driving rack and the driven rack are both slidably arranged on the plug-in plate slot along a third direction.

9. A grinding device for mold production according to claim 8, characterized in that: The grinding assembly also includes a first transmission block, a transmission gear, a first damper, a bottom bracket, a second transmission block and a second damper. One end of the first transmission block is elastically slidably assembled in the driven rack, and the other end of the first transmission block is fixedly connected to the driving rack. The transmission gear is rotatably assembled on the grinding bracket, one end of the transmission gear is meshed with the driven gear, and the other end of the transmission gear is meshed with the driven rack. The first damper is fixedly arranged on the grinding bracket and assembled with the driven rack. The bottom bracket is fixedly arranged at the bottom of the grinding bracket, one end of the second transmission block is elastically slidably assembled on the bottom bracket along the third direction, and the other end of the second transmission block is fixedly connected to the connecting frame.

10. A grinding device for mold production according to claim 1, characterized in that: The grinding device for mold production also includes a transmission assembly, which includes a first transmission arm, a second transmission arm, a center shaft pin and a final drive wheel. One end of the first transmission arm is rotatably mounted on the inclination adjustment rod, and the other end of the first transmission arm is rotatably connected to the second transmission arm through the center shaft pin. The end of the second transmission arm is rotatably equipped with a final drive wheel, and the final drive wheel is fixedly arranged on the grinding bracket, and one end of the final drive wheel is connected to the center shaft pin and the inclination adjustment rod through a synchronous belt, and the other end of the final drive wheel is meshed with the drive rack.

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