Grinding jig for die casting
By designing a grinding fixture that restricts slider movement with a chute and adjusts the orientation of the extrusion head with a rotary joint, the problem of low fixing efficiency in the existing technology is solved, achieving multi-point extrusion fixing and stability, and improving the adaptability and flexibility of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN SHENGSHI PRECISION MASCH CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-17
AI Technical Summary
Existing grinding fixtures cannot be adjusted externally to meet the fixing requirements of different points on the workpiece, affecting fixing efficiency and equipment adaptability.
A grinding fixture including a processing table, a slider, a liquid storage tank, and screw holes was designed. The slider movement is restricted by a sliding groove, the extrusion head orientation is adjusted by a rotary joint, and the hydraulic rod is connected to the liquid storage tank to achieve multi-point extrusion fixation and stability.
It improves the adaptability and stability of the workpiece, ensures equal extrusion pressure at multiple points, and enhances the flexibility and convenience of the grinding fixture.
Smart Images

Figure CN224129471U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grinding fixture technology, specifically to a grinding fixture for die castings. Background Technology
[0002] Die casting is a type of part produced through a die casting process. The die casting process involves rapidly filling a mold cavity with liquid or semi-liquid metal material under high pressure, and then solidifying it under pressure. Grinding is a crucial step in the die casting production process, directly affecting the surface quality and precision of the die casting. Grinding fixtures are tools used to fix and position the die casting for efficient and precise grinding operations.
[0003] While existing grinding fixtures offer numerous advantages during use, they still suffer from the following problems: they cannot adjust the external position of the fixture, leading to different fixation requirements at various points on the outside or inside of the workpiece, thus affecting the workpiece fixation efficiency and the adaptability of the equipment. Utility Model Content
[0004] To address the problems in the prior art, this utility model provides a grinding fixture for die castings.
[0005] The technical solution adopted by this utility model to solve its technical problem is a grinding fixture for die castings, including a processing table, a slider, a liquid storage tank and screw holes. The upper outer wall of the processing table is provided with a circular array of grooves. A slider is slidably installed inside the grooves. A connecting pipe is inserted into the slider. A liquid storage tank is provided on one side of the lower outer wall of the processing table. A circular array of connecting pipes is inserted into the upper end of the outer wall of the liquid storage tank.
[0006] By adopting the above technical solution, the chute restricts the movement trajectory of the slider, thereby allowing adjustment of the position of the extrusion head and the spacing between the extrusion heads. When the slider is unfolded, the operator rotates the hydraulic rod through the rotary joint to change the orientation of the extrusion head, allowing the extrusion head to be located inside or outside the workpiece. This enables extrusion fixation of the workpiece's inner or outer wall, improving the workpiece's adaptability. Furthermore, the hydraulic oil inside the reservoir can be delivered to the hydraulic rod, thereby controlling the hydraulic rod to push the extrusion head to move. This allows for multi-point extrusion fixation of the workpiece through multiple extrusion heads. Since the hydraulic rods are all connected to the reservoir, it ensures that the extrusion force between the multi-point extrusion heads and the workpiece is equal, ensuring the stability of the workpiece fixation.
[0007] Specifically, the lower outer wall of the processing table is equipped with a rectangular array of legs, and the lower outer wall of the legs is provided with a circular array of fixing holes.
[0008] By adopting the above technical solution, the support legs provide stable support for the processing table, ensuring that the fixture will not shake during the grinding process, and the fixing holes facilitate the fixing of the processing table to the use position with bolts.
[0009] Specifically, the upper outer wall of the processing table is provided with a circular array of screw holes on both sides, and the screw holes and the slide groove are distributed in a cross pattern.
[0010] By adopting the above technical solution, the bolts and screw holes are precisely matched, which can fix the slider at different positions and achieve precise positioning of the hydraulic rod.
[0011] Specifically, the outer walls on both sides of the slider are equipped with fasteners, and bolts are installed inside the fasteners, with the bolts threaded through the fasteners and connected to the bolt holes.
[0012] By adopting the above technical solution, the fasteners, bolts, and screw holes can quickly and firmly fix the slider on the processing table. This fixing method makes it convenient to adjust the slider position at any time according to the grinding requirements, thus improving the flexibility and convenience of using the fixture.
[0013] Specifically, a rotary joint is installed on the upper outer wall of the connecting pipe, a hydraulic rod is provided on the upper outer wall of the rotary joint, an extrusion head is installed on the outer wall of one end of the hydraulic rod, and the connecting pipe is connected to the lower outer wall of the connecting pipe.
[0014] By adopting the above technical solution, the rotary joint allows the hydraulic rod and extrusion head to rotate flexibly, adapting to grinding operations at different angles. The hydraulic rod and extrusion head can apply stable pressure to the die-casting, ensuring close contact between the workpiece and the external grinding tool during the grinding process, thus ensuring the grinding effect. The connecting pipe is connected to the connecting pipe, ensuring that the hydraulic oil in the storage tank can be smoothly delivered to the inside of the hydraulic rod, thereby driving the push rod part of the hydraulic rod to push out, so that the extrusion head can extrude and fix the die-casting.
[0015] Specifically, fasteners are installed on both outer walls of the liquid storage tank, and the liquid storage tank is connected to the lower outer wall of the processing table by screws through the fasteners.
[0016] By adopting the above technical solution, the liquid storage tank is secured in a stable position at the bottom of the processing table through fasteners and screws, and ensures that the liquid storage tank can be easily disassembled and maintained in the future.
[0017] Specifically, a piston plate is provided inside the liquid storage tank, and a push rod body is provided on one side of the lower end of the liquid storage tank. The push rod body is connected to the lower outer wall of the piston plate.
[0018] By adopting the above technical solution, the push rod body can push the piston plate to move inside the liquid storage tank. Through the squeezing force of the piston plate on the hydraulic oil inside the liquid storage tank, the hydraulic oil inside the liquid storage tank is driven to flow into the hydraulic rod through the connecting pipe, the connecting pipe and the rotary joint, so as to realize the controlled movement of the extrusion head and control the extrusion force between the extrusion head and the die casting.
[0019] The beneficial effects of this utility model are:
[0020] (1) The grinding fixture for die casting described in this utility model can position the extrusion head in the inner cavity or outer side of the workpiece, thereby achieving extrusion and fixation of the inner cavity or outer wall of the workpiece and improving the adaptability of the workpiece.
[0021] (2) The grinding fixture for die casting described in this utility model achieves multi-point extrusion and fixation of the workpiece through multi-position extrusion heads, and can ensure that the extrusion force between the multi-point extrusion heads and the workpiece is equal, thus ensuring the stability of the workpiece fixation. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Figure 1 This is a schematic diagram of the main structure of the processing table of this utility model;
[0024] Figure 2 This is a schematic diagram of the flip-up processing table structure of this utility model;
[0025] Figure 3 For the present utility model Figure 2 Schematic cross-sectional view of the middle liquid storage tank structure;
[0026] Figure 4 This is an enlarged schematic diagram of the slider structure of this utility model.
[0027] In the diagram: 1. Processing table; 11. Support leg; 12. Slide groove; 13. Screw hole; 2. Slider; 21. Fixing component; 22. Connecting pipe; 23. Rotary joint; 24. Hydraulic rod; 25. Extrusion head; 3. Liquid storage tank; 31. Fastener; 32. Connecting pipe; 33. Push rod body; 34. Piston plate. Detailed Implementation
[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0029] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the present invention provides a grinding fixture for die castings, comprising a processing table 1, a slider 2, a liquid storage tank 3, and screw holes 13. The upper outer wall of the processing table 1 is provided with a circular array of grooves 12, and the slider 2 is slidably installed inside the grooves 12. A connecting pipe 22 is inserted into the slider 2. The lower outer wall of the processing table 1 is provided with a liquid storage tank 3, and a circular array of connecting pipes 32 is inserted into the upper part of the outer wall of the liquid storage tank 3.
[0030] In use, the slide 12 restricts the movement trajectory of the slider 2, thereby adjusting the position of the extrusion head 25 and the spacing between the extrusion heads 25. When the slider 2 is unfolded, the operator rotates the hydraulic rod 24 through the rotary joint 23 to change the orientation of the extrusion head 25, so that the extrusion head 25 is located in the inner cavity or outer side of the workpiece, which can realize the extrusion and fixation of the inner cavity or outer wall of the workpiece, improving the adaptability of the workpiece. The hydraulic oil inside the reservoir 3 can be delivered to the hydraulic rod 24, thereby controlling the hydraulic rod 24 to push the extrusion head 25 to move. The extrusion head 25 in multiple positions can realize multi-point extrusion and fixation of the workpiece. Since the hydraulic rod 24 is connected to the reservoir 3, it can ensure that the extrusion force between the multi-point extrusion head 25 and the workpiece is equal, ensuring the fixation stability of the workpiece.
[0031] To support the location of use, for example, such as Figure 1 As shown, the lower outer wall of the processing table 1 is equipped with rectangular array of legs 11, and the lower outer wall of the legs 11 is provided with circular array of fixing holes.
[0032] When in use, the support leg 11 provides stable support for the processing table 1, ensuring that the fixture will not shake during the grinding process, and the fixing hole makes it easy to fix the processing table 1 to the use position with bolts.
[0033] To fix the usage location, for example, such as Figure 1 As shown, screw holes 13 arranged in a circular array are provided on both sides of the upper outer wall of the processing table 1, and the screw holes 13 and the slide groove 12 are arranged in a cross pattern.
[0034] During use, the bolts and screw holes 13 fit precisely, allowing the slider 2 to be fixed in different positions, thus achieving precise positioning of the hydraulic rod 24.
[0035] For fixed use in different locations, for example, such as Figure 4 As shown, both sides of the outer wall of the slider 2 are equipped with fasteners 21. Bolts are provided inside the fasteners 21, and the bolts pass through the fasteners 21 and are threaded into the screw holes 13.
[0036] When in use, the fastener 21, bolts and screw holes 13 can quickly and firmly fix the slider 2 on the processing table 1. This fixing method makes it easy to adjust the position of the slider 2 at any time according to the grinding requirements, which improves the flexibility and convenience of using the fixture.
[0037] To adjust the usage location, for example, such as Figure 4 As shown, a rotary joint 23 is installed on the upper outer wall of the connecting pipe 22, a hydraulic rod 24 is provided on the upper outer wall of the rotary joint 23, and an extrusion head 25 is installed on the outer wall of one end of the hydraulic rod 24. The connecting pipe 32 is connected to the lower outer wall of the connecting pipe 22.
[0038] During use, the rotary joint 23 allows the hydraulic rod 24 and the extrusion head 25 to rotate flexibly to adapt to grinding operations at different angles. The hydraulic rod 24 and the extrusion head 25 can apply stable pressure to the die casting, ensuring that the workpiece is in close contact with the external grinding tool during the grinding process, thus ensuring the grinding effect. The connecting pipe 32 is connected to the connecting pipe 22 to ensure that the hydraulic oil in the storage tank 3 can be smoothly delivered to the inside of the hydraulic rod 24, thereby driving the push rod part of the hydraulic rod 24 to push out, so that the extrusion head 25 can extrude and fix the die casting.
[0039] To fix the usage location, for example, such as Figure 3 As shown, fasteners 31 are installed on both outer walls of the liquid storage tank 3, and the liquid storage tank 3 is connected to the lower outer wall of the processing table 1 by screws through the fasteners 31.
[0040] During use, the liquid storage tank 3 is secured in a stable position at the lower end of the processing table 1 by fasteners 21 and screws, and ensures that the liquid storage tank 3 can be easily disassembled and maintained in the future.
[0041] To drive movement, for example, such as Figure 3 As shown, a piston plate 34 is provided inside the liquid storage tank 3, and a push rod body 33 is provided on one side of the lower end of the liquid storage tank 3. The push rod body 33 is connected to the lower outer wall of the piston plate 34.
[0042] In use, the push rod body 33 can push the piston plate 34 to move inside the liquid storage tank 3. Through the squeezing force of the piston plate 34 on the hydraulic oil inside the liquid storage tank 3, the hydraulic oil inside the liquid storage tank 3 is driven to flow into the hydraulic rod 24 through the connecting pipe 32, the connecting pipe 22 and the rotary joint 23, so as to realize the controlled movement of the extrusion head 25 and control the extrusion force between the extrusion head 25 and the die casting.
[0043] In use, the processing table 1 is fixed in a suitable working position by bolts through the fixing holes at the lower end of the support leg 11. The position of the slider 2 is moved according to the shape of the die casting and the grinding requirements to determine the position of the extrusion head 25. After the slider 2 is adjusted to a suitable position, the bolts are threaded through the bolts inside the fixing parts 21 on both sides of the outer wall of the slider 2 and threaded into the screw holes 13 distributed in a circular array on both sides of the upper outer wall of the processing table 1, so as to fix the slider 2 in different positions and thus accurately position the hydraulic rod 24.
[0044] The operator can rotate the hydraulic rod 24 through the rotary joint 23 to change the orientation of the extrusion head 25. By adjusting the position of the slider 2, the extrusion head 25 can be located in the inner cavity or outer side of the die casting to adapt to different die casting shapes and fixing requirements.
[0045] When the push rod body 33 is working, the push rod body 33 drives the piston plate 34 to move upward inside the liquid storage tank 3. The piston plate 34 exerts a squeezing force on the hydraulic oil inside the liquid storage tank 3. The squeezed hydraulic oil flows into the connecting pipe 22 through the connecting pipe 32, and then enters the hydraulic rod 24 through the connecting pipe 22 and the rotary joint 23.
[0046] After the hydraulic oil enters the hydraulic rod 24, it drives the push rod part of the hydraulic rod 24 to push out, so that the extrusion head 25 installed at one end of the hydraulic rod 24 extrudes and fixes the die casting. Since multiple hydraulic rods 24 are connected to the liquid storage tank 3, it can ensure that the extrusion force between the extrusion head 25 at multiple points and the die casting is equal.
[0047] After the die-casting is fixed, the external grinding tool is started to grind the die-casting. After grinding, the push rod body 33 is reversed to make the piston plate 34 move downward in the liquid storage tank 3. The hydraulic oil flows back to the liquid storage tank 3, the extrusion head 25 retracts, and the fixing of the die-casting is released.
[0048] It should be noted that this utility model is a grinding fixture for die castings. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A grinding fixture for die-cast parts, characterized in that, The equipment includes a processing table (1), a slider (2), a liquid storage tank (3), and screw holes (13). The upper outer wall of the processing table (1) is provided with a circular array of sliding grooves (12). The slider (2) is slidably installed inside the sliding grooves (12). A connecting pipe (22) is inserted into the slider (2). The lower outer wall of the processing table (1) is provided with a liquid storage tank (3). A circular array of connecting pipes (32) is inserted into the upper part of the outer wall of the liquid storage tank (3).
2. The polishing jig for a die casting according to claim 1, wherein The processing table (1) is equipped with rectangular array of legs (11) on the lower outer wall, and the lower outer wall of the legs (11) is provided with circular array of fixing holes.
3. The polishing jig for a die casting according to claim 1, wherein The upper outer wall of the processing table (1) is provided with screw holes (13) arranged in a circular array on both sides, and the screw holes (13) and the slide groove (12) are arranged in a cross shape.
4. The polishing jig for a die casting according to claim 1, wherein The slider (2) has fasteners (21) installed on both sides of its outer wall. The fasteners (21) have bolts inside and are threaded through the fasteners (21) and connected to the screw holes (13).
5. The polishing jig for a die casting according to claim 1, wherein A rotary joint (23) is installed on the upper outer wall of the connecting pipe (22), a hydraulic rod (24) is provided on the upper outer wall of the rotary joint (23), an extrusion head (25) is installed on the outer wall of one end of the hydraulic rod (24), and the connecting pipe (32) is connected to the lower outer wall of the connecting pipe (22).
6. The polishing jig for a die casting according to claim 1, wherein Fasteners (31) are installed on both outer walls of the liquid storage tank (3), and the liquid storage tank (3) is connected to the lower outer wall of the processing table (1) by screws through the fasteners (31).
7. The polishing jig for a die casting according to claim 1, wherein The liquid storage tank (3) is equipped with a piston plate (34) inside, and a push rod body (33) is provided on one side of the lower end of the liquid storage tank (3). The push rod body (33) is connected to the lower outer wall of the piston plate (34).