A device for roughening a mold surface

Abstract

The utility model discloses a mould surface rough machining polishing device, including support frame, Z direction drive assembly, sliding mechanism, clamping mechanism and polishing mechanism. Sliding mechanism contains X / Y direction movement subassembly and realizes mould plane positioning, and Z direction drive assembly drives polishing mechanism to go up and down, and clamping mechanism fixes mould through bench vice and positioning datum plate, and polishing mechanism is equipped with protective box, cooling liquid spray head and quick -change connector. Solve the problem that traditional manual polishing is low in efficiency, and the positioning is poor, and the cooling and the chip removal are not good and the slow problem of refitting, have high -precision three -axis linkage, and the synchronous cooling and the chip removal, and the quick refitting etc. advantage, improve processing efficiency and consistency.

Description

Technical Field

[0001] This utility model relates to the field of mold production and processing equipment, and in particular to a device for rough grinding of mold surface. Background Technology

[0002] In the mold manufacturing industry, the rough grinding process on the mold surface is a crucial step in ensuring mold precision and the quality of subsequent finishing. Traditional mold surface grinding mainly relies on manual hand-held grinding wheels or simple mechanical devices, which has the following significant drawbacks: First, the degree of automation is low, requiring manual adjustment of the mold position and control of grinding pressure, resulting in low processing efficiency, poor consistency, and difficulty in meeting the needs of mass production; Second, the high temperature generated during grinding can easily cause local thermal deformation of the mold, affecting the final dimensional accuracy; Third, the debris formed by the mixture of dust and coolant easily accumulates in the grinding area, which not only aggravates the wear of the grinding disc but may also cause scratches on the mold surface; Fourth, replacing the grinding disc requires disassembling multiple fixed parts, which is time-consuming and affects equipment utilization.

[0003] While some automated grinding equipment has emerged in the existing technology, most employ linear motion mechanisms in a single direction, making it difficult to achieve precise positioning of complex curved surfaces of molds. Although some equipment is equipped with cooling systems, inadequate protective structure design results in insufficient coolant coverage of the grinding area, or poor chip removal leading to secondary contamination. Therefore, there is an urgent need for a rough grinding device for mold surfaces that integrates high-precision positioning, synchronous cooling and chip removal, and rapid maintenance to solve the aforementioned technical problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a rough grinding device for mold surface.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a rough grinding device for mold surfaces, comprising a support frame, characterized in that it further comprises: a Z-axis drive assembly fixedly installed on the inner side of the support frame; a sliding mechanism installed on the support frame; a clamping mechanism installed on the sliding mechanism; and a grinding mechanism fixedly connected to the output end of the Z-axis drive assembly and capable of being driven by the Z-axis drive assembly to move up and down in the Z direction; the sliding mechanism includes an X-axis moving assembly disposed on the inner side of the support frame and a Y-axis moving assembly disposed on the X-axis moving assembly and driven by the X-axis moving assembly to move in the X direction; the clamping mechanism is fixedly installed on the Y-axis moving assembly and capable of being driven by the Y-axis moving assembly to move in the Y direction; the clamping mechanism includes a vise for clamping the mold; and the grinding mechanism includes: a horizontally arranged grinding disc; a protective box covering the outside of the grinding disc, with an open side structure; a grinding drive motor fixed to the bottom of the protective box, the output shaft of which drives and connects to the grinding disc; and several coolant nozzles installed on the top of the protective box and facing the working area of ​​the grinding disc.

[0007] As a preferred embodiment of this utility model, the X-axis moving component includes at least two parallel X-axis guide shafts fixedly installed on both sides of the support frame; at least one X-axis slider is slidably installed on the X-axis guide shaft; the X-axis moving component also includes an X-axis drive screw arranged parallel to the X-axis guide shaft, an X-axis connecting block threaded with the X-axis drive screw, and an X-axis drive motor for driving the X-axis drive screw to rotate; the Y-axis moving component is fixedly connected to the X-axis slider and the X-axis connecting block.

[0008] As a preferred embodiment of this utility model, the Y-axis moving component includes: a Y-axis slide rail, fixedly mounted on the X-axis moving component; a Y-axis slide table, slidably engaged with the Y-axis slide rail; a timing belt, parallel to the side of the Y-axis slide rail; a Y-axis drive motor for driving the timing belt to rotate; limit switches disposed at both ends of the Y-axis slide rail; the timing belt is fixedly connected to the side of the Y-axis slide table; and the base of the clamping mechanism is fixedly connected to the Y-axis slide table.

[0009] As a preferred embodiment of this utility model, the Z-axis drive assembly includes a Z-axis fixed base fixedly mounted on a support frame; at least two Z-axis guide shafts and a Z-axis lead screw parallel to the Z-axis guide shafts are vertically fixed on the Z-axis fixed base; a Z-axis slider is slidably mounted on the Z-axis guide shaft; a Z-axis nut is threaded onto the Z-axis lead screw; the Z-axis drive assembly also includes a Z-axis drive motor for driving the Z-axis lead screw to rotate; the Z-axis slider and the Z-axis nut are jointly fixedly connected to a Z-axis mounting plate, and the grinding mechanism is fixedly mounted on the Z-axis mounting plate.

[0010] As a preferred technical solution of this utility model, the protective box has at least one chip discharge port on its side or bottom for discharging the mixture of grinding debris and coolant.

[0011] As a preferred technical solution of this utility model, the grinding disc is connected to the output shaft of the grinding drive motor through a quick-change connector; the quick-change connector includes a male head fixedly connected to the motor shaft and a female head fixedly connected to the grinding disc, and the male head and the female head are locked together by a ratchet lock or a thread.

[0012] As a preferred embodiment of this utility model, a positioning reference plate is fixedly installed on the base of the clamping mechanism, and a positioning groove or positioning reference surface is provided on the positioning reference plate; the bench vise is fixedly installed on the positioning reference plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The device adopts a three-axis linkage system consisting of an X-axis moving component, a Y-axis moving component, and a Z-axis driving component. Through the precision transmission of the lead screw and slider and the stroke control of the limit switch, the positioning accuracy of the mold in the X, Y, and Z directions can be achieved, avoiding manual adjustment errors and greatly improving the consistency of batch processing.

[0015] 2. The protective box equipped with the grinding mechanism has an open side structure to avoid grinding interference. The coolant spray nozzles evenly distributed on the top can directly spray the contact area between the grinding disc and the mold, effectively reducing the grinding temperature and preventing the mold from thermally deforming. At the same time, the chip discharge port at the bottom or side of the protective box can discharge the mixture of chips and coolant in real time, avoiding abnormal wear of the grinding disc caused by chip accumulation and extending the service life of the grinding disc.

[0016] 3. The grinding disc is connected to the drive motor via a quick-change connector with a ratchet lock or threaded lock. There is no need to disassemble the protective box or other parts. The grinding disc replacement operation can be completed in just 30 seconds, which significantly reduces equipment downtime and improves production efficiency.

[0017] 4. The clamping mechanism achieves rapid pre-positioning and rigid fixation of the mold through the cooperation of the positioning reference plate and the bench vise. The clamping time is reduced by more than 50% compared with the traditional method, while the positioning accuracy is improved to within ±0.1mm, reducing the skill requirements of the operator. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is the front view of this utility model;

[0021] Figure 3 This is a top view of the present invention;

[0022] Figure 4 This is a side view of the present invention;

[0023] Figure 5 This is a rear view of the present invention;

[0024] In the diagram: 1. Support frame; 2. Sliding mechanism; 3. Clamping mechanism; 4. Grinding mechanism; 5. Z-axis drive assembly; 21. X-axis moving assembly; 22. Y-axis moving assembly; 31. Vise; 32. Positioning reference plate; 41. Grinding disc; 42. Protective box; 43. Grinding drive motor; 44. Coolant nozzle; 45. Chip discharge port; 46. Quick-change connector; 51. Z-axis guide shaft; 52. Z-axis lead screw; 53. Z-axis drive motor 54. Z-axis fixed seat; 55. Z-axis mounting plate; 56. Z-axis slider; 57. Z-axis screw nut; 211. X-axis guide shaft; 212. X-axis slider; 213. X-axis drive screw; 214. X-axis connecting block; 215. X-axis drive motor; 221. Y-axis slide rail; 222. Y-axis slide table; 223. Y-axis drive motor; 224. Synchronous belt; 225. Limit switch; 461. Male connector; 462. Female connector. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] In the attached diagram, all identical reference numerals refer to the same components.

[0027] Example 1: Basic mold surface roughing and grinding device

[0028] like Figure 1-5 As shown, this embodiment provides a grinding device suitable for rough machining of small and medium-sized molds. The connection relationship and function of each core component are as follows:

[0029] Support frame 1 is a rectangular frame welded from Q235 steel plate, with dimensions of 1500mm×1200mm×800mm. The bottom is fixed to the ground with anchor bolts to provide rigid support for other components.

[0030] The sliding mechanism 2 is mounted on the support frame 1 and includes an X-axis moving component 21 and a Y-axis moving component 22. The X-axis moving component 21 is mounted on the inner top of the support frame 1 and includes two parallel X-axis guide shafts 211; two X-axis sliders 212 are slidably engaged on the guide shafts 211; the X-axis drive screw 213 is parallel to the guide shafts 211 and is threadedly connected to the X-axis connecting block 214 through a nut; the X-axis drive motor 215 is fixed to the side of the support frame 1 and drives the screw 213 to rotate through a coupling, thereby moving the X-axis connecting block 214 along the X-axis direction with a positioning accuracy of ±0.05mm.

[0031] The Y-axis moving component 22 is fixed below the X-axis moving component 21 via the X-axis slider 212 and the X-axis connecting block 214. The Y-axis slide rail 221 is fixed to the mounting surface of the Y-axis moving component 22. The Y-axis slide table 222 slides with the slide rail 221. The synchronous belt 224 is parallel to the slide rail 221, with one end connected to the output shaft of the Y-axis drive motor 223 via a synchronous pulley, and the other end fixedly connected to the side of the Y-axis slide table 222. A limit switch 225 is installed at each end of the Y-axis slide rail 221 (controlling the maximum travel of the slide table 222 by 800mm forward and backward) to prevent overtravel.

[0032] The clamping mechanism 3 is installed on the top of the Y-axis slide table 222 and includes a positioning reference plate 32 and a vise 31. The positioning reference plate 32 is fixed to the top of the Y-axis slide table 222 and has a positioning groove as a positioning reference surface. The vise 31 is fixed to the top of the positioning reference plate 32 by bolts and is used to directly clamp the mold, so as to realize the rapid positioning and rigid fixation of the mold on the Y-axis slide table 222.

[0033] Please see the appendix Figure 2 and appendix Figure 4 The grinding mechanism 4 is fixedly connected to the output end of the Z-axis drive assembly 5 and includes a grinding disc 41, a protective box 42, a grinding drive motor 43, and coolant nozzles 44. The protective box 42 covers the outside of the grinding disc 41, with an open structure on the side and five coolant nozzles 44 evenly installed on the top (spray angle 45°, covering the area from the center to the edge of the grinding disc 41). The grinding drive motor 43 is fixed to the bottom of the protective box 42, and its output shaft is connected to the grinding disc 41 through a quick-change connector 46. The quick-change connector 46 includes a male connector 461 fixedly connected to the motor shaft and a female connector 462 fixedly connected to the grinding disc 41. The male connector 461 and the female connector 462 are locked with a ratchet lock structure for easy and quick replacement of the grinding disc 41.

[0034] Please see the appendix Figure 5The Z-axis drive assembly 5 is fixedly installed inside the support frame 1, including a Z-axis fixed seat 54; two Z-axis guide shafts 51 and a Z-axis lead screw 52 parallel to the Z-axis guide shafts 51 are vertically fixed on the Z-axis fixed seat 54; a Z-axis slider 56 is slidably provided on the Z-axis guide shafts 51; a Z-axis nut 57 is threadedly engaged on the Z-axis lead screw 52; a Z-axis drive motor 53 is fixed to the top of the Z-axis fixed seat 54, and drives the lead screw 52 to rotate through a coupling, thereby driving the Z-axis slider 56 and the Z-axis nut 57 to move together along the Z-axis; the Z-axis slider 56 and the Z-axis nut 57 are fixedly connected to the Z-axis mounting plate 55, and the grinding mechanism 4 is fixedly installed at the bottom of the Z-axis mounting plate 55 to realize the lifting and lowering adjustment of the grinding disc 41 along the Z-axis.

[0035] In this embodiment, the protective box 42 has a chip discharge port 45 on its side or bottom for discharging the mixture of grinding chips and coolant; the positioning groove on the positioning reference plate 32 cooperates with the vise 31 to quickly position the mold to the processing start point, reducing manual adjustment time.

[0036] Example 2: Precision mold surface roughing and grinding device

[0037] The difference between this embodiment and Embodiment 1 is as follows: the diameter of the X-axis guide shaft 211 of the X-axis moving component 21 is increased to 50mm, and the lead of the X-axis drive screw 213 is adjusted to 15mm; the Y-axis slide rail 221 of the Y-axis moving component 22 adopts a double-rail parallel structure, and a ball bearing is added to the bottom of the Y-axis slide table 222 to improve the smoothness of sliding; the Z-axis guide shaft 51 of the Z-axis drive component 5 is increased to 3, and the lead of the Z-axis screw 52 is adjusted to 20mm; the number of coolant nozzles 44 of the grinding mechanism 4 is increased to 6, and the size of the chip discharge port 45 on the side of the protective box 42 is enlarged to 80mm×40mm.

[0038] This embodiment optimizes the parameters of key components, making it suitable for rough machining scenarios with higher precision requirements (such as injection mold parting surfaces), improving positioning accuracy to ±0.03mm and increasing processing efficiency by 20%.

[0039] Example 3: Rough Grinding Device for Large Mold Surfaces

[0040] This embodiment is designed for large molds. The dimensions of the support frame 1 are expanded to 2500mm×2000mm×1000mm, and adjustable feet are added to the bottom to adjust the level of the support frame 1. The X-axis moving component 21 of the sliding mechanism 2 is increased to two sets, the number of X-axis guide shafts 211 in each set is increased to 3, and the power of the X-axis drive motor 215 is increased to 3kW. The length of the Y-axis slide rail 221 of the Y-axis moving component 22 is extended to 1500mm, and the power of the Y-axis drive motor 223 is increased to 2kW. The dimensions of the positioning reference plate 32 of the clamping mechanism 3 are increased to 1200mm×800mm, and the depth of the positioning groove is increased to 20mm. The diameter of the Z-axis guide shaft 51 of the Z-axis drive component 5 is increased to 60mm, the lead of the Z-axis lead screw 52 is adjusted to 30mm, and the thickness of the Z-axis mounting plate 55 is increased to 50mm.

[0041] This embodiment, by expanding the structural dimensions and enhancing the load-bearing capacity of key components, can handle large molds weighing ≥500kg, and the processing range covers the entire mold surface, significantly improving its practicality.

[0042] This utility model is a rough grinding device for mold surface. Through structural innovation and functional integration, it improves processing accuracy, efficiency and equipment reliability while reducing operation complexity and maintenance costs. It is suitable for rough processing of large molds such as automotive body panel molds and injection mold parting surfaces, and has good promotion and application value.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rough grinding device for mold surface, comprising a support frame (1), characterized in that: Also includes: Z-axis drive assembly (5) is fixedly installed on the inner side of the support frame (1); sliding mechanism (2) is installed on the support frame (1); clamping mechanism (3) is installed on the sliding mechanism (2); grinding mechanism (4) is fixedly connected to the output end of the Z-axis drive assembly (5) and can be driven by the Z-axis drive assembly (5) to move up and down in the Z direction; the sliding mechanism (2) includes an X-axis moving assembly (21) disposed on the inner side of the support frame (1) and a Y-axis moving assembly (22) disposed on the X-axis moving assembly (21) and driven by the X-axis moving assembly (21) to move in the X direction; the clamping mechanism ( 3) Fixedly installed on the Y-direction moving component (22) and can be driven by the Y-direction moving component (22) to move along the Y direction; the clamping mechanism (3) includes a vise (31) for clamping the mold; the grinding mechanism (4) includes: a horizontally arranged grinding disc (41); a protective box (42) covering the outside of the grinding disc (41) and having an open structure on the side; a grinding drive motor (43) fixed to the bottom of the protective box (42) and its output shaft driving the grinding disc (41); and several coolant nozzles (44) installed on the top of the protective box (42) and facing the working area of ​​the grinding disc (41).

2. The rough grinding device for mold surface according to claim 1, characterized in that, The X-axis moving assembly (21) includes at least two parallel X-axis guide shafts (211) fixedly installed on both sides of the support frame (1); at least one X-axis slider (212) is slidably installed on the X-axis guide shaft (211); the X-axis moving assembly (21) also includes an X-axis drive screw (213) arranged parallel to the X-axis guide shaft (211), an X-axis connecting block (214) threadedly engaged with the X-axis drive screw (213), and an X-axis drive motor (215) for driving the X-axis drive screw (213) to rotate; the Y-axis moving assembly (22) is fixedly connected to the X-axis slider (212) and the X-axis connecting block (214).

3. The mold surface roughing and grinding device according to claim 1, characterized in that, The Y-axis moving component (22) includes: a Y-axis slide rail (221) fixedly installed on the X-axis moving component (21); a Y-axis slide table (222) slidingly engaged with the Y-axis slide rail (221); a timing belt (224) arranged parallel to the side of the Y-axis slide rail (221); a Y-axis drive motor (223) for driving the timing belt (224) to rotate; limit switches (225) arranged at both ends of the Y-axis slide rail (221); the timing belt (224) is fixedly connected to the side of the Y-axis slide table (222); and the base of the clamping mechanism (3) is fixedly connected to the Y-axis slide table (222).

4. The roughing and polishing device for mold surface according to claim 1, characterized in that, The Z-axis drive assembly (5) includes a Z-axis fixed seat (54) fixedly mounted on a support frame (1); at least two Z-axis guide shafts (51) and a Z-axis lead screw (52) parallel to the Z-axis guide shafts (51) are vertically fixed on the Z-axis fixed seat (54); a Z-axis slider (56) is slidably provided on the Z-axis guide shafts (51); a Z-axis nut (57) is threaded onto the Z-axis lead screw (52); the Z-axis drive assembly (5) also includes a Z-axis drive motor (53) for driving the Z-axis lead screw (52) to rotate; the Z-axis slider (56) and the Z-axis nut (57) are fixedly connected to a Z-axis mounting plate (55), and the grinding mechanism (4) is fixedly mounted on the Z-axis mounting plate (55).

5. The rough grinding device for mold surface according to claim 1, characterized in that, The protective box (42) has at least one chip discharge port (45) on its side or bottom for discharging the mixture of chips and coolant generated during grinding.

6. The rough grinding device for mold surface according to claim 1, characterized in that, The grinding disc (41) is connected to the output shaft of the grinding drive motor (43) via a quick-change connector (46); the quick-change connector (46) includes a male head (461) and a female head (462), wherein the male head (461) is fixedly connected to the motor shaft, and the female head (462) is fixedly connected to the grinding disc (41).

7. The rough grinding device for mold surface according to claim 1, characterized in that, A positioning reference plate (32) is fixedly installed on the base of the clamping mechanism (3), and a positioning groove or positioning reference surface is provided on the positioning reference plate (32); the bench vise (31) is fixedly installed on the positioning reference plate (32).

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