A device for grinding a key of a vehicle

By designing a car key grinding processing device, the automated grinding processing of key pieces has been realized, solving the problems of increased labor intensity and safety risks caused by manual operation, and improving the stability and safety of the processing.

CN224488581UActive Publication Date: 2026-07-14烟台市东林精密金属制品有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
烟台市东林精密金属制品有限公司
Filing Date
2025-06-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In the existing technology, the grinding process of car key blades requires manual operation, which increases the labor intensity of workers and poses safety risks.

Method used

A grinding device for car keys has been designed, including a base, a grinding wheel, a worktable, an unloading assembly, a discharge pipe, and a lifting assembly. The workpiece is clamped by the pressing assembly, and the feeding and unloading assemblies work together to achieve automated processing, reducing the labor intensity of workers and improving safety.

Benefits of technology

The automated grinding process for key paddles has been achieved, reducing the labor intensity of workers and improving production safety and processing stability.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224488581U_ABST
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Abstract

The utility model relates to automobile key machining technical field, especially automobile key grinding device, including frame, the frame is equipped with grinding machine, the frame is equipped with workbench, unloading assembly, discharge pipe and drive pressure material assembly lift's lifting assembly still, is equipped with feeding assembly on the workbench, the pressure material assembly includes the locating seat, the locating seat is equipped with the workpiece through slot and the pressure rod of longitudinal removal of horizontal in, the left side interval of locating seat is equipped with the longitudinal limit rod, and the limit rod is fixed in lifting assembly, the feeding assembly includes the material guide seat and the first push rod of transverse removal, and the first material channel for placing workpiece is equipped on the material guide seat, the unloading assembly includes the second push rod of transverse removal, through the first push rod workpiece in the first material channel is pushed to the workpiece through slot and makes the small end surface of workpiece with the limit rod abuts, and through the pressure rod pressure workpiece and the second push rod workpiece is pushed to the discharge pipe, to this reduces the labor intensity, guarantees safe production.
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Description

Technical Field

[0001] This utility model relates to the field of automobile key processing technology, and in particular to an automobile key grinding processing device. Background Technology

[0002] As people's demands for car appearance and design evolve, car remote keys are becoming more streamlined and intelligent. Mechanical key blades (spare keys) are generally only used in emergencies. A Chinese utility model patent with publication number CN217925337U provides a car remote key blade removal structure, which incorporates an L-shaped key blade within the transmitter.

[0003] Currently, such as Figure 1 The image shows a key piece (workpiece) awaiting processing in the existing workshop. The workpiece is L-shaped. During the production process, the small end face of the workpiece needs to be manually ground on a grinding wheel. This not only increases the labor intensity of the workers but also poses certain operational safety risks. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects and deficiencies in the existing technology. To this end, this utility model provides an automobile key grinding processing device, which can reduce the labor intensity of workers and improve the safety of workers' operation.

[0005] The technical solution provided by this utility model is as follows:

[0006] A car key grinding processing device includes a base, on which a grinding wheel is mounted, a worktable, a material unloading assembly, a material discharge pipe, and a lifting assembly that drives the material pressing assembly to rise and fall. A feeding assembly is mounted on the worktable.

[0007] The pressing assembly includes a positioning seat, which has a transverse workpiece through slot and a longitudinally movable pressing rod; a longitudinal limiting rod is provided on the left side of the positioning seat, and the limiting rod is fixed on the lifting assembly; the feeding assembly includes a guide seat and a transversely movable first push rod, which has a first material channel for placing workpieces on the guide seat; the unloading assembly includes a transversely movable second push rod.

[0008] The first push rod is used to push the workpiece in the first material channel to the workpiece through groove and make the small end face of the workpiece abut against the limiting rod; the pressure rod is used to press the workpiece in the workpiece through groove; the second push rod is used to push the workpiece in the workpiece through groove into the discharge pipe.

[0009] Furthermore, the lifting assembly includes a frame, and a sliding seat that is vertically driven by a first hydraulic cylinder is slidably provided at the front end of the frame; the first hydraulic cylinder is fixed to the top of the frame; and the positioning seat is fixed to the front end of the sliding seat.

[0010] Furthermore, the positioning seat includes a guide block and a clamping block, the clamping block being fixedly disposed at the front end of the guide block; the guide block being fixedly disposed at the front end of the sliding seat; the pressure rod being slidably disposed within the guide block and capable of being embedded in the clamping block; and the workpiece through groove being disposed within the clamping block.

[0011] Furthermore, the sliding seat includes a sliding plate and a longitudinal beam, the longitudinal beam being fixedly mounted at the rear end of the sliding plate; the sliding plate is slidably engaged with the frame via a dovetail groove; a first sliding groove is provided in the middle of the dovetail groove; the left and right sides of the longitudinal beam are slidably engaged with the first sliding groove; the output end of the first hydraulic cylinder is fastened to the longitudinal beam.

[0012] Furthermore, the pressing assembly also includes a second hydraulic cylinder, a crank, and a connecting rod; the left and right sides of the second hydraulic cylinder are disposed at the top of the rear end of the longitudinal beam via bearing seats; the crank is hinged to the longitudinal beam via a pin; the two ends of the connecting rod are respectively hinged to the front end of the crank and the rear end of the pressing rod; the output end of the second hydraulic cylinder is hinged to the rear end of the crank; the pin is located between the two ends of the crank; the hinge point of the front end of the crank is located below and behind the pressing rod.

[0013] Furthermore, the feeding assembly also includes a third hydraulic cylinder, the output end of which is fixedly provided with a slider, the slider being slidably placed in a second material channel, the second material channel being disposed on the guide seat; the first push rod is fixedly provided at the end of the slider; the second material channel is connected to the first material channel.

[0014] Furthermore, the unloading assembly also includes a fourth hydraulic cylinder, which is fixed to the left end of the mounting base, and the mounting base is fixed to the machine base via a connecting block; the output end of the fourth hydraulic cylinder is fastened to the second push rod via a coupling; the second push rod slides through a support block, and the support block is fixed to the right end of the mounting base.

[0015] Furthermore, the second push rod is cylindrical, and the workpiece through groove is provided with a through hole that matches the second push rod.

[0016] Furthermore, the rear end of the pressure rod is provided with a slot that matches the size of the workpiece, and the slot is used to clamp the workpiece.

[0017] Furthermore, the rear end of the guide block is integrally provided with a limiting boss, through which the pressure rod slides; the bottom of the slide plate is provided with a U-shaped groove, through which the limiting boss slides.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the key plate grinding process can be completed by the cooperation of the lifting component and the grinding wheel; the workpiece in the workpiece through groove can be pressed by the pressure rod of the pressing component to ensure the stability of the grinding process; the placed workpiece can be automatically pushed into or pushed out of the workpiece through groove by the feeding component and the unloading component; the whole process only requires the worker to place the workpiece in the first material channel, which reduces the labor intensity of the worker and improves the safety of production. Attached Figure Description

[0019] Figure 1 Key pieces awaiting processing in the existing workshop;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model;

[0021] Figure 3 for Figure 2 Cross-sectional schematic diagram of the lifting assembly;

[0022] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0023] Figure 5 for Figure 2 Schematic diagram of the structure of the unloading assembly;

[0024] Figure 6 for Figure 2 A partial view of the lifting component;

[0025] Figure 7 for Figure 4 A schematic diagram of the structure of the middle clamping block.

[0026] In the diagram: 1. Machine base; 2. Workbench; 3. Grinding wheel; 4. Lifting assembly; 5. Feeding assembly; 6. Unloading assembly; 7. Limiting rod; 8. Pressing assembly; 11. Discharge pipe; 41. Frame; 42. Slide plate; 43. Dovetail groove; 44. First slide groove; 45. First hydraulic cylinder; 46. U-shaped groove; 47. Longitudinal beam; 48. Valve interface; 51. Guide seat; 52. Second material channel; 53. First material channel; 54. First push rod; 55. Sliding block; 56. Third hydraulic cylinder; 61. Connecting block; 62. Mounting seat; 63. Fourth hydraulic cylinder; 64. Second push rod; 65. Coupling; 66. Support block; 81. Second hydraulic cylinder; 82. Crank; 83. Connecting rod; 84. Pressing rod; 85. Guide block; 86. Clamping block; 87. Limiting boss; 88. Slot; 89. Linear bearing. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0029] Example

[0030] Please see Figures 2 to 7 As shown, this utility model provides a car key grinding processing device, including a base 1, a grinding wheel 3 mounted on the base 1, a worktable 2, an unloading assembly 6, a discharge pipe 11, and a lifting assembly 4 that drives the pressing assembly 8 to rise and fall. A feeding assembly 5 is mounted on the worktable 2. The pressing assembly 8 includes a positioning seat with a transverse workpiece through slot and a longitudinally movable pressing rod 84. A longitudinal limiting rod 7 is provided on the left side of the positioning seat and is fixed to the lifting assembly 4. The feeding assembly 5 includes a guide seat 51 and a transversely movable first push rod 54. The guide seat 51 has a first material channel 53 for placing the workpiece. The unloading assembly 6 includes a transversely movable second push rod 64.

[0031] In use, the first push rod 54 pushes the workpiece in the first material channel 53 to the workpiece through groove and makes the small end face of the workpiece abut against the limit rod 7, leaving room for grinding; then, the pressure rod 84 presses the workpiece in the workpiece through groove, the lifting assembly 4 drives the positioning seat to move downward and completes the end face grinding of the workpiece through the grinding wheel 3; finally, the second push rod 64 pushes the workpiece in the workpiece through groove into the discharge pipe 11.

[0032] The discharge pipe 11 here is a rectangular tube and is installed in the machine base 1 at an angle downwards. The top of the discharge pipe 11 is open to facilitate the entry of the workpiece into the discharge pipe 11. The details will not be elaborated further.

[0033] As an embodiment of the present utility model, the lifting assembly 4 includes a frame 41, and a sliding seat driven vertically by a first hydraulic cylinder 45 is slidably provided at the front end of the frame 41; the first hydraulic cylinder 45 is fixed to the top of the frame 41; a positioning seat is fixed to the front end of the sliding seat; and a limiting rod 7 is fixed to the left side of the frame 41 by a bracket.

[0034] The aforementioned positioning seat includes a guide block 85 and a clamping block 86. The clamping block 86 is fixedly mounted on the front end of the guide block 85. The guide block 85 is fixedly mounted on the front end of the sliding seat. The pressure rod 84 is slidably mounted in the guide block 85 and can be embedded in the clamping block 86. The workpiece through groove is mounted in the clamping block 86.

[0035] The sliding seat includes a sliding plate 42 and a longitudinal beam 47. The longitudinal beam 47 is fixed to the rear end of the sliding plate 42. The sliding plate 42 is slidably engaged with the frame 41 through a dovetail groove 43. A first sliding groove 44 is provided in the middle of the dovetail groove 43. The left and right sides of the longitudinal beam 47 are slidably engaged with the first sliding groove 44. The output end of the first hydraulic cylinder 45 is fastened to the longitudinal beam 47.

[0036] The rear end of the aforementioned pressure rod 84 can press the workpiece with its end face, or it can be provided with a slot 88 that matches the size of the workpiece, thereby pressing the workpiece with the slot 88. The rear end of the guide block 85 can be integrally provided with a limiting boss 87, through which the pressure rod 84 slides; the bottom of the slide plate 42 is provided with a U-shaped groove 46, through which the limiting boss 87 slides, thereby improving the movement stability of the pressure rod 84.

[0037] In addition, a valve interface 48 can be installed on the top of the frame 41. A valve and a bamboo tube can be connected through the valve interface 48 to send external grinding coolant to the grinding wheel of the grinding machine 3. The bottom of the base 1 can collect the grinding coolant for recycling. This is existing technology and will not be described in detail.

[0038] As an embodiment of this utility model, the pressing assembly 8 further includes a second hydraulic cylinder 81, a crank 82, and a connecting rod 83; the left and right sides of the second hydraulic cylinder 81 are mounted on the top of the rear end of the longitudinal beam 47 via bearing seats; the crank 82 is hinged to the longitudinal beam 47 via a pin; the two ends of the connecting rod 83 are respectively hinged to the front end of the crank 82 and the rear end of the pressing rod 84; the output end of the second hydraulic cylinder 81 is hinged to the rear end of the crank 82; the pin is located between the two ends of the crank 82; the hinge point at the front end of the crank 82 is located below and behind the pressing rod 84.

[0039] The second cylinder 81, crank 82, connecting rod 83, and pressure rod 84 constitute a crank-slider mechanism, which converts the rotational oscillation of crank 82 into the longitudinal reciprocating motion of pressure rod 84. The specific details will not be elaborated further.

[0040] As an embodiment of the present invention, the feeding assembly 5 further includes a third hydraulic cylinder 56, the output end of the third hydraulic cylinder 56 is fixedly provided with a slider 55, the slider 55 is slidably placed in the second material channel 52, the second material channel 52 is provided on the guide seat 51; the first push rod 54 is fixedly provided at the end of the slider 55; the second material channel 52 is connected to the first material channel 53.

[0041] The cooperation between the second feed channel 52 and the slider 55 improves the movement stability of the first push rod 54. The first push rod 54 can slide into the slider 55 and be fastened to the slider 55 with screws for easy disassembly and replacement.

[0042] As an embodiment of this utility model, the unloading assembly 6 also includes a fourth hydraulic cylinder 63, which is fixedly mounted on the left end of the mounting base 62. The mounting base 62 is fixedly mounted on the machine base 1 via a connecting block 61. The output end of the fourth hydraulic cylinder 63 is fastened to the second push rod 64 via a coupling 65. The second push rod 64 slides through the support block 66, which is fixedly mounted on the right end of the mounting base 62. This ensures that the length of the second push rod 64 meets the requirements, reduces the stroke of the fourth hydraulic cylinder 63, and lowers the procurement cost.

[0043] The second push rod 64 is preferably cylindrical, and the workpiece through groove is provided with a through hole that matches the second push rod 64, so as to improve the stability of the cooperation between the second push rod 64 and the clamping block 86.

[0044] It should be noted that Figure 2 In the diagram, the X direction is horizontal, with the arrow pointing to the left; the Y direction is vertical, with the arrow pointing forward.

[0045] The working process of this utility model is as follows:

[0046] Step 1: With the first hydraulic cylinder 45 in the non-extended state, the key piece can be manually placed into the first material channel 53 with the small end of the key piece facing left and the curved part facing up, thereby reducing the labor intensity of workers and improving production safety.

[0047] Step 2: The third hydraulic cylinder 56 drives the slider 55 to move laterally, and the slider 55 drives the first push rod 54 to move laterally in the first material channel 53. The first push rod 54 pushes the key piece into the workpiece through slot in the clamping block 86; the small end of the key piece passes through the clamping block 86 and abuts against the limit rod 7.

[0048] Step 3: The second cylinder 81 drives the crank 82 to rotate and swing. The crank 82 drives the pressure rod 84 to move linearly through the connecting rod 83. The end of the pressure rod 84 presses against the key piece. At this time, the third cylinder 56 is reset.

[0049] Step 4: The first hydraulic cylinder 45 drives the sliding seat to move downwards, during which the key blade passes through the grinding wheel on the grinding machine 3 for grinding. Because the small end of the key blade is small, the pressure applied to the key blade by the pressure rod 84 makes the friction between the key blade and the workpiece through groove able to counteract the force of the grinding wheel on the small end of the key blade. Therefore, the grinding process is relatively stable.

[0050] Step 5: After the output end of the first cylinder 45 extends to its maximum distance, the key piece is below the grinding wheel and above the discharge pipe 11. At this time, the second cylinder 81 is reset. Then, the fourth cylinder 63 drives the second push rod 64 to move laterally. The second push rod 64 is embedded in the clamping block 86 and pushes the key piece away from the clamping block 86 until the key piece enters the discharge pipe 11.

[0051] Step 6: After the fourth cylinder 63 is reset, the first cylinder 45 is reset, and then the above steps are repeated.

[0052] In addition, the first hydraulic cylinder 45, the second hydraulic cylinder 81, the third hydraulic cylinder 56 and the fourth hydraulic cylinder 63 are controlled by an external hydraulic station; the grinding wheel machine 3 is existing technology, which drives the grinding wheel to rotate through a motor and related transmission components; the machine base 1 can be equipped with a protective railing (not shown in the figure) around the unloading assembly 6; the rear end of the limiting boss 87 can be fixed with a linear bearing 89, and the pressure rod 84 is matched with the linear bearing 89 to improve the service life of the pressure rod 84, which will not be described in detail.

[0053] This utility model can be summarized in other specific forms that do not depart from the spirit or main features of this utility model. Therefore, in all respects, the above embodiments of this utility model should only be considered as descriptions of this utility model and not as limitations thereof. The claims specify the scope of this utility model, while the above description does not specify the scope of this utility model. Therefore, any changes within the meaning and scope equivalent to the claims of this utility model should be considered as included within the scope of the claims of this utility model.

Claims

1. A grinding device for automobile keys, comprising a base (1), wherein a grinding wheel (3) is mounted on the base (1), characterized in that, The base (1) is also provided with a workbench (2), a material unloading assembly (6), a material discharge pipe (11) and a lifting assembly (4) that drives the material pressing assembly (8) to rise and fall. The workbench (2) is provided with a feeding assembly (5). The pressing assembly (8) includes a positioning seat, which has a transverse workpiece through slot and a longitudinally movable pressing rod (84); a longitudinal limiting rod (7) is provided on the left side of the positioning seat, and the limiting rod (7) is fixed on the lifting assembly (4); the feeding assembly (5) includes a guide seat (51) and a transversely movable first push rod (54), which has a first material channel (53) for placing workpieces on the guide seat (51); the unloading assembly (6) includes a transversely movable second push rod (64); The first push rod (54) is used to push the workpiece in the first material channel (53) to the workpiece through groove and make the small end face of the workpiece abut against the limiting rod (7); the pressure rod (84) is used to press the workpiece in the workpiece through groove; the second push rod (64) is used to push the workpiece in the workpiece through groove into the discharge pipe (11).

2. The automotive key grinding device according to claim 1, characterized in that, The lifting assembly (4) includes a frame (41), and a sliding seat that is vertically driven by a first hydraulic cylinder (45) is slidably provided at the front end of the frame (41); the first hydraulic cylinder (45) is fixed to the top of the frame (41); and the positioning seat is fixed to the front end of the sliding seat.

3. The automotive key grinding device according to claim 2, characterized in that, The positioning seat includes a guide block (85) and a clamping block (86), the clamping block (86) being fixed at the front end of the guide block (85); the guide block (85) being fixed at the front end of the sliding seat; the pressure rod (84) being slidably disposed within the guide block (85) and capable of being embedded in the clamping block (86); and the workpiece through groove being disposed within the clamping block (86).

4. The automotive key grinding apparatus according to claim 3, characterized in that, The sliding seat includes a sliding plate (42) and a longitudinal beam (47). The longitudinal beam (47) is fixed to the rear end of the sliding plate (42). The sliding plate (42) is slidably engaged with the frame (41) through a dovetail groove (43). A first sliding groove (44) is provided in the middle of the dovetail groove (43). The left and right sides of the longitudinal beam (47) are slidably engaged with the first sliding groove (44). The output end of the first hydraulic cylinder (45) is fastened to the longitudinal beam (47).

5. The automotive key grinding apparatus according to claim 4, characterized in that, The pressing assembly (8) further includes a second hydraulic cylinder (81), a crank (82), and a connecting rod (83); the left and right sides of the second hydraulic cylinder (81) are mounted on the top of the rear end of the longitudinal beam (47) via bearing seats; the crank (82) is hinged to the longitudinal beam (47) via a pin; the two ends of the connecting rod (83) are respectively hinged to the front end of the crank (82) and the rear end of the pressing rod (84); the output end of the second hydraulic cylinder (81) is hinged to the rear end of the crank (82); the pin is located between the two ends of the crank (82); the hinge point of the front end of the crank (82) is located below and behind the pressing rod (84).

6. The automotive key grinding apparatus according to any one of claims 1 to 5, characterized in that, The feeding assembly (5) also includes a third hydraulic cylinder (56), the output end of which is fixedly provided with a slider (55), the slider (55) is slidably placed in the second material channel (52), the second material channel (52) is provided on the guide seat (51); the first push rod (54) is fixedly provided at the end of the slider (55); the second material channel (52) is connected to the first material channel (53).

7. The automotive key grinding apparatus according to any one of claims 1 to 5, characterized in that, The unloading assembly (6) also includes a fourth hydraulic cylinder (63), which is fixed to the left end of the mounting base (62), which is fixed to the machine base (1) by a connecting block (61); the output end of the fourth hydraulic cylinder (63) is fastened to the second push rod (64) by a coupling (65); the second push rod (64) slides through the support block (66), which is fixed to the right end of the mounting base (62).

8. The automotive key grinding apparatus according to claim 7, characterized in that, The second push rod (64) is cylindrical, and the workpiece through groove is provided with a through hole that matches the second push rod (64).

9. The automotive key grinding apparatus according to claim 6, characterized in that, The rear end of the pressure rod (84) is provided with a slot (88) that matches the size of the workpiece, and the slot (88) is used to press the workpiece.

10. The automotive key grinding apparatus according to claim 5, characterized in that, The guide block (85) has an integrally provided limiting boss (87) at its rear end, and the pressure rod (84) slides through the limiting boss (87); the bottom of the slide plate (42) has a U-shaped groove (46), and the limiting boss (87) slides through the U-shaped groove (46).