Work platform for automobile engine maintenance

Abstract

The present invention relates to a workbench for vehicle engine maintenance, and more specifically, to a workbench for vehicle engine maintenance that allows the vehicle engine to be mounted on a jig of the workbench during maintenance such as disassembly and assembly, and then freely switches between the exposed surface and the jig mounting surface to be exposed, thereby enabling the maintenance work on the vehicle engine to be performed more efficiently and conveniently. Additionally, by further providing the workbench with a height adjustment function, an anti-overturning function, and various oil drainage functions, the workbench can reduce the process and time required for vehicle engine maintenance while further improving convenience and safety.

Description

Technology Field

[0001] The present invention relates to a workbench for vehicle engine maintenance that enables maintenance work to be performed more efficiently and conveniently, such as by reducing work processes and time while improving convenience and safety. Background Technology

[0002] Generally, a vehicle engine consists of many components such as an oil pan, cylinder block, cylinder head, and cylinder head cover, and accounts for a significant portion of the vehicle's weight. Therefore, when performing maintenance such as disassembly and assembly of the vehicle engine, a vehicle engine maintenance workbench that stably supports the engine and is also movable is used.

[0003] As related prior art, Patent Document 1 proposed a jig for assembling an automobile engine assembly that allows for maintenance to be performed by disassembling and assembling various parts of the vehicle engine while the vehicle engine is installed on the jig on a workbench.

[0004] However, the above-mentioned conventional technology had the problem of making the work process cumbersome, such as having to service the exposed surface of the vehicle engine after mounting it on the jig, and then, when service the mounting surface of the vehicle engine that is in contact with the jig, having to lift the vehicle engine again, rotate it so that the contact surface is exposed upward, and then service it.

[0005] Furthermore, the aforementioned conventional technology had problems such as the absence of a height adjustment function for the workbench or a function to prevent overturning, as well as a function to drain various oils generated during maintenance work, which resulted in significant time and effort being consumed for the maintenance work of disassembling and assembling various parts of the vehicle engine, as well as the constant risk of overturning. Prior art literature

[0006] Patent Document 1: Republic of Korea Registered Patent Publication No. 10-0233685 The problem to be solved

[0007] The present invention aims to solve the above-mentioned problems by enabling maintenance work on a vehicle engine to be performed more efficiently and conveniently during maintenance, such as disassembly and assembly, by allowing the exposed surface and the jig mounting surface to be freely switched and exposed after mounting the vehicle engine on a jig of a maintenance workbench.

[0008] In addition, the present invention aims to further improve convenience and safety while reducing the process and time for vehicle engine maintenance work by further providing a height adjustment function, an anti-overturning function, and various oil drainage functions for the work table.

[0009] The problems that the present invention aims to solve are not limited to those mentioned above, and other problems that the present invention aims to solve that are not mentioned herein will be clearly understood by those skilled in the art to which the present invention belongs from the description below. means of solving the problem

[0010] The present invention relates to a workbench for vehicle engine maintenance, comprising: a die portion (100) on which an engine (E) is supported; and a plurality of leg portions (200) coupled to the lower surface of the die portion (100) to support the die portion (100); wherein the die portion (100) is a jig on which the engine (E) is mounted, and comprises a jig plate (110) which is axially coupled at one end of the die portion (100) and folds in the central direction or outward direction of the die portion (100) using a motor (111) as a driving means; and a first support member (120) coupled to the upper surface of the die portion (100), which is coupled at a position that contacts the engine (E) mounted on the jig plate (110) when the jig plate (110) is folded in the central direction, thereby supporting the engine (E) when the jig plate (110) is folded in the central direction. A workbench for vehicle engine maintenance is provided as a means of solving the problem, comprising: a second support member (130) which is coupled to the upper surface of the die portion (100) and is coupled to a position that contacts the jig plate (110) when the jig plate (110) is folded outwardly, thereby supporting the jig plate (110) when the jig plate (110) is folded outwardly; and an oil discharge groove (140) formed penetrating from one end of the upper surface of the die portion (100) toward the lower side; a tilt sensor (S) for detecting tilting of the die portion (100) is provided, and the jig plate (110) is characterized by having a plurality of screw holes (112) formed therein for screw coupling with the vehicle engine.

[0011] Here, the leg portion (200) is supported on the ground via a wheel (221) and includes a plurality of support portions (220) provided at a position corresponding to the lower edge of the die portion (100); and a height adjustment portion (230) located between the die portion (100) and the support portions (220) to connect the die portion (100) and the support portions (220) and to adjust the height gap of the die portion (100) relative to the support portions (220) using a hydraulic cylinder as a driving means; wherein the plurality of support portions (220) may be interconnected by a lower plate (222).

[0012] And the above-described workbench for vehicle engine maintenance further includes a control unit (300) that controls the operation of a motor (111) and a hydraulic cylinder, wherein the control unit (300) may include a motor control module (310) that controls the operation of the motor (111); a hydraulic cylinder control module (320) that controls the operation of the hydraulic cylinder; and a rollover prevention module (330) that prevents the rollover of the die unit (100) based on tilt information detected by the tilt sensor (S).

[0013] Additionally, the overturn prevention module (330) may include: an overturn information collection unit (331) that collects overturn information detected by the overturn sensor (S); and an overturn prevention operating unit (332) that calculates a difference value by comparing pre-learned optimal overturn information with overturn information generated in real time by the overturn sensor (S), generates overturn correction data such that the difference value converges to '0', and then drives the hydraulic cylinder through the hydraulic cylinder control module (320) to correspond to the overturn correction data.

[0014] Meanwhile, the above-mentioned anti-overturning operating unit (332) may include: a learning module (332a) that stores and learns optimal tilt information; a judgment module (332b) that stores the optimal tilt information learned by the learning module (332a) and the tilt information generated in real time by the tilt sensor (S), calculates a change value by substituting the tilt information generated in real time into the learned optimal tilt information, and generates tilt correction data such that the change value converges to '0'; and an operating module (332c) that transmits a hydraulic cylinder driving signal to the hydraulic cylinder control module (320) to drive the hydraulic cylinder so as to correspond to the tilt correction data. Effects of the invention

[0015] The present invention has the effect of making maintenance work on a vehicle engine more efficient and convenient by allowing the vehicle engine to be mounted on a jig of a maintenance workbench during maintenance such as disassembly and assembly, and then freely switching between the exposed surface and the jig mounting surface.

[0016] In addition, the present invention further provides a height adjustment function for the workbench, an anti-overturning function, and various oil drainage functions, thereby reducing the process and time required for vehicle engine maintenance work while further enhancing convenience and safety. Brief explanation of the drawing

[0017] FIG. 1 is a perspective view of a workbench for vehicle engine maintenance according to the present invention. FIG. 2 is an exploded perspective view of a workbench for vehicle engine maintenance according to the present invention. FIG. 3 is a side cross-sectional view showing the operating state of a workbench for vehicle engine maintenance according to the present invention. FIG. 4 is a block diagram showing the configuration of the control unit of a workbench for vehicle engine maintenance according to the present invention. FIG. 5 is a block diagram showing the configuration of an anti-overturning module for a workbench for vehicle engine maintenance according to the present invention. Specific details for implementing the invention

[0018] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described in detail below together with the accompanying drawings.

[0019] However, the present invention is not limited to the embodiments disclosed below but will be implemented in various different forms.

[0020] The embodiments described in this specification are provided to ensure that the disclosure of the invention is complete and to fully inform those skilled in the art of the scope of the invention.

[0021] And the present invention is defined only by the scope of the claims.

[0022] Accordingly, in some embodiments, well-known components, well-known operations, and well-known techniques are not specifically described to avoid the invention being interpreted ambiguously.

[0023] Additionally, throughout the specification, the same reference numerals refer to the same components, and the terms used (mentioned) in this specification are for describing embodiments and are not intended to limit the invention.

[0024] In this specification, the singular form includes the plural form unless specifically stated otherwise in the text, and components and operations referred to as 'comprising (or comprising)' do not exclude the presence or addition of one or more other components and operations.

[0025] Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning that is commonly understood by those skilled in the art to which the present invention belongs.

[0026] Also, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless otherwise defined.

[0027] The present invention will be described in detail below with reference to the attached drawings.

[0028] FIG. 1 is a perspective view of a workbench for vehicle engine maintenance according to the present invention, FIG. 2 is an exploded perspective view of a workbench for vehicle engine maintenance according to the present invention, FIG. 3 is a side cross-sectional view showing the operating state of a workbench for vehicle engine maintenance according to the present invention, FIG. 4 is a block diagram showing the configuration of a control unit of a workbench for vehicle engine maintenance according to the present invention, and FIG. 5 is a block diagram showing the configuration of an anti-overturning module of a workbench for vehicle engine maintenance according to the present invention.

[0029] Referring to FIGS. 1 to 5, the workbench for vehicle engine maintenance according to the present invention includes a die portion (100) and a leg portion (200).

[0030] The above die (100) includes a jig plate (110), a first support member (120), a second support member (130), and an oil drainage groove (140) in a space where the engine (E) is supported.

[0031] The above jig plate (110) is a jig on which an engine (E) is mounted, and is axially coupled at one end of the die part (100) and folded in the center direction or outward direction of the die part (100) using a motor (111) as a driving means.

[0032] At this time, the jig plate (110) has a plurality of screw holes (112) formed therein for screw connection with the vehicle engine (E).

[0033] Meanwhile, since excessive lower sagging may occur due to the weight of the engine (E) when the above jig plate (110) is folded in the center or outward direction, a support member is provided to prevent this.

[0034] More specifically, a first support member (120) is coupled to the upper surface of the die portion (100), wherein the first support member (120) is coupled at a position that contacts the engine (E) mounted on the jig plate (110) when the jig plate (110) is folded in the center direction, thereby supporting the engine (E) when the jig plate (110) is folded in the center direction.

[0035] And a second support member (130) is further attached to the upper surface of the above die part (100), wherein the second support member (130) is attached at a position that contacts the jig plate (110) when the jig plate (110) is folded outward, thereby supporting the jig plate (110) when the jig plate (110) is folded outward.

[0036] Meanwhile, an oil discharge groove (140) is formed penetrating downward from one end of the upper surface of the die (100) to allow the discharge of oil generated during maintenance work, and a tilt sensor (S) for detecting the tilt of the die (100) is provided at one end of the die (100) to prevent the overturning of the work table by linking with a control unit (300) to be described later.

[0037] The above leg portion (200) is coupled to the lower surface of the die portion (100) to support the die portion (100) and includes a support portion (220) and a height adjustment portion (230).

[0038] More specifically, the support member (220) is supported on the ground via a wheel (221) and is provided in multiple numbers at a position corresponding to the lower edge of the die member (100).

[0039] And the height adjustment unit (230) is positioned between the die unit (100) and the support unit (220) to connect the die unit (100) and the support unit (220), and adjusts the height gap of the die unit (100) relative to the support unit (220) using a hydraulic cylinder as a driving means.

[0040] Meanwhile, the plurality of support members (220) are interconnected by a lower plate (222), and the lower plate (222) can store an oil collection container for collecting the discharged oil or various maintenance tools.

[0041] And the above-mentioned workbench for vehicle engine maintenance may further include a control unit (300) that controls the operation of a motor (111) and a hydraulic cylinder, and the control unit (300) includes a motor control module (310), a hydraulic cylinder control module (320), and an overturn prevention module (330).

[0042] The above motor control module (310) controls the operation of the motor (111) and controls the operation of the motor (111) based on an operation input signal from a worker via a conventional input device (e.g., an operation switch).

[0043] The above hydraulic cylinder control module (320) controls the operation of the hydraulic cylinder to adjust the height gap of the die part (100) relative to the support part (220) through the height adjustment part (230). This can also be controlled based on an operation input signal from a worker via a conventional input device (e.g., an operation switch), and can also be controlled by an overturn prevention module (330) to be described later.

[0044] The above-mentioned overturn prevention module (330) prevents the overturning of the die (100) based on tilt information detected by a tilt sensor (S) provided at one end of the die (100), and includes a tilt information collection unit (331) and an overturn prevention operation unit (332).

[0045] More specifically, the tilt information collection unit (331) collects the tilt information detected by the tilt sensor (S), and the tilt information generated in real time by the tilt sensor (S) is compared with the pre-learned optimal tilt information using the overturn prevention operating unit (332) to calculate a difference value, and after generating tilt correction data such that the difference value converges to '0', the hydraulic cylinder is driven through the hydraulic cylinder control module (320) to correspond to the tilt correction data.

[0046] To this end, the above-mentioned anti-overturning operating unit (332) includes a learning module (332a), a judgment module (332b), and an operating module (332c).

[0047] More specifically, optimal slope information is stored and learned through the learning module (332a), and through the judgment module (332b), the optimal slope information previously learned by the learning module (332a) and the slope information generated in real time by the slope sensor (S) are stored, and then the slope information generated in real time is substituted into the previously learned optimal slope information to calculate a change value, and slope correction data is generated such that the change value converges to '0'.

[0048] Then, a hydraulic cylinder driving signal for driving the hydraulic cylinder to correspond to the slope correction data is transmitted to the hydraulic cylinder control module (320) through the operating module (332c).

[0049] For example, the above-mentioned anti-overturning operating unit (332) learns that the tilt information when the die unit (100) is in an optimal working state is '10°', and if the tilt information generated in real-time by the tilt sensor (S) is '20°', it substitutes this to calculate a change value of '-10'. Then, it generates operating data for hydraulic cylinders to make the change value '0', and in the case of a die unit (100) to which four hydraulic cylinder-based height adjustment means (230) are applied, it generates operating data for each of the four hydraulic cylinders, either one or all of them.

[0050] And the generated data is used as tilt correction data, and the hydraulic cylinder is driven through the hydraulic cylinder control module (320) to correspond to the tilt correction data, thereby preventing the die (100) from overturning.

[0051] To this end, the learning module (332a), judgment module (332b), and operation module (332c) may use known Artificial Intelligence (AI) modules. That is, it is possible to construct an AIoT (Artificial Intelligence of Things) based system through the fusion of the various sensors and the AI ​​modules.

[0052] Here, the artificial intelligence module may be a CNN (Convolutional Neural Networks) model that includes an Inception module in a GAP (Global Average Pooling) layer.

[0053] The artificial intelligence module can produce desired data by learning the weights of multiple inputs through deep learning. In addition, various models such as RNN (Recurrent Neural Network), DNN (Deep Neural Network), and DRNN (Dynamic Recurrent Neural Network) can be utilized as artificial intelligence network models for this learning.

[0054] Here, RNN is a deep learning technique that considers current and past data simultaneously, and a Recurrent Neural Network (RNN) represents a neural network in which the connections between units constituting the artificial neural network form a directed cycle. Furthermore, various methods can be used for structures that can construct a Recurrent Neural Network (RNN); for example, representative examples include the Fully Recurrent Network, Hopfield Network, Elman Network, Echo State Network (ESN), Long Short-Term Memory Network (LSTM), Bi-directional RNN, Continuous-Time RNN (CTRNN), Hierarchical RNN, and Second-Order RNN. Additionally, methods such as Gradient Descent, Hessian Free Optimization, and Global Optimization Method can be used to train the Recurrent Neural Network (RNN).

[0055] Furthermore, conventional CNNs suffer from the problem of high processing speed and computational load. Since the present invention requires iterative computation using immediate additional data, a lighter algorithm is necessary. Therefore, Global Average Pooling (GAP) layers and Inception modules can be applied to the CNN model. Generally, CNNs stack many convolution layers, resulting in a large number of filters. A large number of filters implies that feature maps accumulate accordingly. In other words, it means that the dimensionality of the CNN is very high.

[0056] Handling high dimensions requires a large number of parameters capable of handling them. However, if the number of parameters becomes too large, problems such as overfitting can occur during training. Therefore, a method is needed to reduce dimensionality by decreasing the number of parameters used in the filters. The layer in CNNs that performs this role is the pooling layer.

[0057] In this case, GAP solves this problem by extracting the average from each feature and moving it directly to the classification layer. Consequently, because it directly associates features with categories while preserving the spatial information of the previous feature maps, it can generate a confidence map (= feature map) that indicates which parts of the obtained feature maps played a major role in classifying them into a specific class. Since it does not require separate parameter optimization, it has the advantage of low computational load and the ability to prevent overfitting.

[0058] The Inception architecture is a form in which a small neural network is added inside a neural network, and the small neural network inside is called the Inception module. The Inception module can reduce the feature map through 1x1 convolution, making it effective in terms of processing speed and computational load.

[0059] Accordingly, the above artificial intelligence module may apply a CNN model including an Inception module to the GAP (Global Average Pooling) layer.

[0060] In addition, each communication unit described above or below may utilize Bluetooth, ZigBee, Ultra WideBand (UWB), or Wi-Fi.

[0061] Accordingly, the present invention enables maintenance work on a vehicle engine to be performed more efficiently and conveniently by allowing the vehicle engine to be mounted on a jig of a maintenance workbench during maintenance such as disassembly and assembly, and by freely switching between the exposed surface and the jig mounting surface. Additionally, by further providing the height adjustment function of the workbench, the anti-overturning function, and various oil drainage functions, the process and time for vehicle engine maintenance work can be reduced while further improving convenience and safety.

[0062] Meanwhile, the jig plate (110) is mounted by screwing it together with the engine (E) as described above. In order to prevent slipping or the like during the process of positioning the engine (E) on the jig plate (110), an anti-slip coating layer may be formed on the surface of the jig plate (110) that is connected to the engine (E), and the anti-slip coating layer is formed by applying an anti-slip coating agent.

[0063] For example, the above anti-slip coating agent is formed by mixing 30 to 40 parts by weight of an inorganic filler, 5 to 10 parts by weight of a silane coupling agent, 0.5 to 1.0 parts by weight of an antioxidant, and 5 to 7 parts by weight of a crosslinking agent with respect to 100 parts by weight of a mixed resin.

[0064] The above mixed resin is formed by mixing polyurethane resin, polyethylene resin, and silicon resin in a weight ratio of 1:1:1 to 2:1:1 as a base substrate for the coating layer, and if the type and content of each resin constituting the above mixed resin fall outside the above range, there is a risk that the coating properties and workability will be reduced.

[0065] The above-mentioned inorganic filler is added to improve physical properties such as wear resistance and anti-slip performance of the coating agent, and is used by mixing silica and calcium carbonate in a weight ratio of 1:1 to 2:1. Here, if the content of silica and calcium carbonate falls outside the above range, there is a risk that the anti-slip effect will be insufficient. Furthermore, if the content of the inorganic filler prepared as above is less than 30 parts by weight, there is a risk that the anti-slip effect will be insufficient, and if it exceeds 40 parts by weight, there is a risk that the coating layer will not be properly formed because the inorganic filler is not properly dispersed in the base substrate.

[0066] The above silane coupling agent is added to improve the dispersibility of inorganic fillers, and vinyltrimethoxysilane may be used. If the content is less than 5 parts by weight, the efficiency of improving dispersibility is insufficient, and there is a risk that the coating layer may not be properly formed. If it exceeds 10 parts by weight, the unnecessary silane coupling agent may leach out after the coating layer is formed, thereby contaminating the appearance.

[0067] The above antioxidant is intended to prevent oxidation of the coating layer itself, and 2-mercaptobenziaidazole may be used as the antioxidant. If the content is less than 0.5 parts by weight, the antioxidant efficiency is reduced, and there is a risk that the coating layer will be lost. If it exceeds 1.0 part by weight, the improvement efficiency of the antioxidant function relative to the amount used is insufficient, and there is a risk that it will be uneconomical.

[0068] The above crosslinking agent is intended to crosslink each of the above compositions to form a coating layer, and may use dicumyl peroxide, benzoyl peroxide, t-butyl peroxy isopropyl carbonate, t-butyl peroxy laurate, etc. If the content is less than 5 parts by weight, there is a risk that the crosslinking efficiency will decrease, and if it exceeds 7 parts by weight, there is a risk that the coating layer will not be properly formed due to over-crosslinking.

[0069] Meanwhile, as a result of conducting anti-slip properties tests on the coating layer as described above, it can be seen that the anti-slip properties are excellent, as shown in [Table 1] below.

[0070] division Example 1 Example 2 Comparative Example 1 Anti-slip properties (Dry) 1.8 1.7 0.7 Anti-slip properties (Wet) 1.0 1.1 0.8 [Anti-slip property test standard] ASTM D1894 [Example 1] A coating agent was prepared by mixing 30 parts by weight of an inorganic filler (silica and calcium carbonate mixed in a 1:1:1 weight ratio), 5 parts by weight of vinyltrimethoxysilane as a silane coupling agent, 0.5 parts by weight of 2-mercaptobenzidiazole as an antioxidant, and 5 parts by weight of dicumyl peroxide as a crosslinking agent, with 100 parts by weight of a mixed resin (polyurethane resin, polyethylene resin, and silicone resin mixed in a 2:1:1 weight ratio), 5 parts by weight of vinyltrimethoxysilane as a silane coupling agent, 0.5 parts by weight of 2-mercaptobenzidiazole as an antioxidant, and 5 parts by weight of dicumyl peroxide as a crosslinking agent, and then coating this to a thickness of 2 μm on the surface of a specimen according to ASTM D1894 to form a coating layer. [Example 2] An inorganic filler (silica and calcium carbonate mixed in a 2:1 weight ratio) with 100 parts by weight of a mixed resin (polyurethane resin, polyethylene resin, and silicone resin mixed in a 2:1:1 weight ratio) A coating agent was prepared by mixing 40 parts by weight of a silane coupling agent, 10 parts by weight of vinyltrimethoxysilane, 1.0 parts by weight of an antioxidant, 2-mercaptobenzidiazole, and 7 parts by weight of a crosslinking agent, dicumyl peroxide. This was then coated to a thickness of 2 μm onto the surface of a specimen according to ASTM D1894 to form a coating layer. [Comparative Example 1] No coating layer formed. [Dry, Wet] Dry: Dynamic friction coefficient without spraying water onto a glass plate according to ASTM D1894. Wet: Dynamic friction coefficient with spraying water onto a glass plate according to ASTM D1894.

[0071] That is, the present invention may provide an anti-slip function by additionally forming an anti-slip coating layer on the jig plate (110) as shown in [Table 1] above.

[0072] The present invention is not limited to the embodiments described above and has a diverse scope of application. Furthermore, it is understood that anyone with ordinary knowledge in the field to which the present invention pertains can make various modifications without departing from the essence of the invention as claimed in the claims. Explanation of the symbols

[0073] 100 : Daibu 110 : Jig Plate 111 : Motor 112 : Screwdriver 120 : First supporting member 130 : Second support member 140 : Oil drain groove 200 : Legs 220 : Support 221 : Wheel 222 : Lower plate 230 : Height adjustment part 300 : Control unit 310: Motor control module 320 : Hydraulic cylinder control module 330 : Overturn prevention module 331 : Gradient Information Collection Unit 332: Anti-overturning operating part 332a : Learning Module 332b : Judgment module 332c : Operating module S: Tilt sensor E: Engine

Claims

Claim 1 In a workbench for vehicle engine maintenance, a die (100) on which the engine (E) is supported; and a plurality of leg portions (200) coupled to the lower surface of the die portion (100) to support the die portion (100); wherein the die portion (100) is a jig on which an engine (E) is mounted, and is axially coupled at one end of the die portion (100) and folds in the central direction or outward direction of the die portion (100) using a motor (111) as a driving means; a jig plate (110) coupled to the upper surface of the die portion (100) and coupled to a position that contacts the engine (E) mounted on the jig plate (110) when the jig plate (110) is folded in the central direction, thereby supporting the engine (E) when the jig plate (110) is folded in the central direction; a first support member (120) coupled to the upper surface of the die portion (100) and coupled to a position that contacts the jig plate (110) when the jig plate (110) is folded in the outward direction, thereby supporting the engine (E) when the jig plate (110) is folded in the central direction; and a jig plate (110) coupled to a position that contacts the jig plate (110) when the jig plate (110) is folded in the outward direction, thereby supporting the engine (E). It includes a second support member (130) that supports the jig plate (110) when the plate (110) is folded outwardly; and an oil discharge groove (140) formed by penetrating from one end of the upper surface of the die part (100) toward the lower side; a tilt sensor (S) for detecting tilting of the die part (100) is provided at one end of the die part (100); the jig plate (110) has a plurality of screw holes (112) formed therein for screw coupling with the vehicle engine; the leg part (200) is supported on the ground via a wheel (221), and a plurality of support parts (220) are provided at a position corresponding to the edge of the lower surface of the die part (100). A workbench for vehicle engine maintenance, comprising: a height adjustment unit (230) positioned between the die portion (100) and the support portion (220) to connect the die portion (100) and the support portion (220), and adjusting the height gap of the die portion (100) relative to the support portion (220) using a hydraulic cylinder as a driving means; wherein the plurality of support portions (220) are interconnected by a lower plate (222). Claim 2 In claim 1, the vehicle engine maintenance workbench further comprises a control unit (300) that controls the operation of a motor (111) and a hydraulic cylinder, wherein the control unit (300) comprises: a motor control module (310) that controls the operation of the motor (111); a hydraulic cylinder control module (320) that controls the operation of the hydraulic cylinder; and a rollover prevention module (330) that prevents the rollover of the die unit (100) based on tilt information detected by the tilt sensor (S). Claim 3 In paragraph 2, the overturn prevention module (330) comprises a tilt information collection unit (331) that collects tilt information detected by the tilt sensor (S); The anti-overturning operating unit (332) calculates a difference value by comparing the pre-learned optimal slope information with the slope information generated in real time by the slope sensor (S), generates slope correction data such that the difference value converges to '0', and then drives the hydraulic cylinder through the hydraulic cylinder control module (320) to correspond to the slope correction data; wherein the anti-overturning operating unit (332) includes: a learning module (332a) that stores and learns the optimal slope information; a judgment module (332b) that stores the optimal slope information learned by the learning module (332a) and the slope information generated in real time by the slope sensor (S), calculates a change value by substituting the slope information generated in real time into the pre-learned optimal slope information, and generates slope correction data such that the change value converges to '0'; A workbench for vehicle engine maintenance, characterized by including: an operating module (332c) that transmits a hydraulic cylinder driving signal to the hydraulic cylinder control module (320) to drive the hydraulic cylinder so as to correspond to the above-mentioned inclination correction data.

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