Control method of electric tool, electric tool and electronic equipment

Abstract

The invention relates to a control method of an electric tool, the electric tool and electronic equipment, the electric tool comprises an operation part, a driving mechanism and a glue pushing part, and the method comprises the steps that in response to an operation signal of the operation part, the driving mechanism is controlled to work according to a current speed parameter so as to drive the glue pushing part to advance; responding to the driving mechanism to stop working, and obtaining the forward working time length of the driving mechanism; according to the forward working duration and / or the speed parameter of the driving mechanism, determining the rollback working duration of the driving mechanism; and controlling the driving mechanism to work according to the rollback working duration so as to drive the glue pushing piece to roll back. According to the technical scheme, after the driving mechanism stops advancing work, the driving mechanism is controlled to carry out returning work according to the advancing work duration and / or the speed parameter of the driving mechanism, returning of the glue pushing piece can be matched with the operation working condition, and the operation experience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of power tools, and particularly relates to a control method for a power tool, a caulking tool, and an electronic device. Background Art

[0002] As an efficient glue application tool, a caulking gun is widely used in various scenarios in industry and households. In the existing design of caulking guns, a driving mechanism is usually used to drive a glue pushing member forward for glue pushing. In order to avoid glue overflow after stopping, the driving mechanism is usually controlled again to drive the glue pushing member to retract after stopping. However, in the prior art, when driving the glue pushing member to retract, the actual operating conditions are not considered, resulting in excessive or insufficient retraction, affecting the stability of glue control and the operating experience. Summary of the Invention

[0003] In view of the above technical problems, the present application provides a control method for a power tool, a power tool, and an electronic device. After the driving mechanism stops advancing, the driving mechanism is controlled to perform a retracting operation according to the advancing working duration and / or speed parameter of the driving mechanism, so that the retraction of the glue pushing member can match the operating conditions and improve the operating experience.

[0004] To solve the above technical problems, the present application provides a control method for a power tool. The power tool includes an operating member, a driving mechanism, and a glue pushing member. The method includes the following steps:

[0005] In response to an operation signal of the operating member, control the driving mechanism to work according to the current speed parameter to drive the glue pushing member forward;

[0006] In response to the driving mechanism stopping working, obtain the advancing working duration of the driving mechanism;

[0007] Determine the retracting working duration of the driving mechanism according to the advancing working duration of the driving mechanism and / or the speed parameter;

[0008] Control the driving mechanism to work according to the retracting working duration to drive the glue pushing member to retract.

[0009] In some embodiments, the determining the retracting working duration of the driving mechanism according to the advancing working duration of the driving mechanism and / or the speed parameter includes:

[0010] Obtain a target duration threshold corresponding to the speed parameter;

[0011] Compare the advancing working duration with the target duration threshold;

[0012] Determine the retracting working duration of the driving mechanism based on the comparison result and the speed parameter.

[0013] In some embodiments, determining the reverse working duration of the driving mechanism based on the comparison result and the speed parameter includes:

[0014] When the comparison result is that the forward working duration is greater than or equal to the target duration threshold, determining the reverse driving distance of the driving mechanism according to the speed parameter, and calculating the reverse working duration according to the reverse driving distance; when the comparison result is that the forward working duration is less than the target duration threshold, the reverse working duration is determined according to the distance compensation amount corresponding to the speed parameter;

[0015] Alternatively, obtaining a corresponding preset duration according to the comparison result, and determining the reverse working duration according to the preset duration.

[0016] In some embodiments, the reverse driving distance is determined based on the driving fit clearance between the driving mechanism and the glue pushing member and an additional reverse distance, and the speed parameter is used to represent a speed gear, and the additional reverse distance corresponding to a speed gear representing a higher speed is greater than the additional reverse distance corresponding to a speed gear representing a lower speed.

[0017] In some embodiments, the speed parameter is used to represent a speed gear, and the reverse working duration is determined according to the distance compensation amount corresponding to the speed parameter, including:

[0018] When the speed gear is the first speed gear, the reverse working duration is determined according to the first distance compensation amount and the reverse speed;

[0019] When the speed gear is other speed gears with a forward speed greater than the first speed gear, determining the reverse working duration according to the difference between the forward working duration and the second duration, and the second duration is determined according to the second distance compensation amount and the reverse speed;

[0020] Wherein, the first distance compensation amount is less than the second distance compensation amount; the second distance compensation amount corresponding to a speed gear representing a higher speed is less than the second distance compensation amount corresponding to a speed gear representing a lower speed.

[0021] In some embodiments, the speed parameter is used to represent a speed gear, obtaining a corresponding preset duration according to the comparison result, and determining the reverse working duration according to the preset duration, includes:

[0022] When the comparison result is that the forward working duration is greater than or equal to the target duration threshold, obtaining the first preset duration corresponding to the speed parameter as the reverse working duration, wherein the first preset duration corresponding to a speed gear representing a higher speed is greater than the first preset duration corresponding to a speed gear representing a lower speed;

[0023] When the comparison result is that the forward working duration is less than the target duration threshold and the speed gear is the first speed gear, obtain a second preset duration as the reverse working duration;

[0024] When the comparison result is that the forward working duration is less than the target duration threshold and the speed gear is other speed gears with a forward speed greater than the first speed gear, obtain a third preset duration, and use the difference between the forward working duration and the third preset duration as the reverse working duration, where the third preset duration corresponding to the speed gear with a higher speed is less than the third preset duration corresponding to the speed gear with a lower speed.

[0025] In some embodiments, after obtaining the forward working duration of the drive mechanism in response to the drive mechanism stopping working, the method further includes:

[0026] Judge whether the forward working duration is greater than or equal to a preset duration threshold;

[0027] If it is greater than or equal to the preset duration threshold, enter the step of determining the reverse working duration of the drive mechanism according to the forward working duration of the drive mechanism and the speed parameter;

[0028] If it is less than the preset duration threshold, do not control the drive mechanism to perform reverse working.

[0029] This application also provides an electric tool, which includes an operating member, a drive mechanism, a glue-pushing member and a controller, and the controller is used to execute the steps of implementing the control method of the electric tool as described above.

[0030] This application also provides an electronic device, which includes a storage medium and a controller, and a computer program is stored on the storage medium, and when the computer program is executed by the controller, the steps of implementing the control method of the electric tool as described above are realized.

[0031] This application also provides a storage medium, and a computer program is stored on the storage medium, and when the computer program is executed by a processor, the steps of implementing the control method of the electric tool as described above are realized.

[0032] Control method of power tool, power tool, electronic device, the power tool includes an operating member, a driving mechanism and a glue pushing member, the method includes: in response to an operation signal of the operating member, controlling the driving mechanism to work according to the current speed parameter to drive the glue pushing member forward; in response to the driving mechanism stopping working, obtaining the forward working duration of the driving mechanism; determining the backward working duration of the driving mechanism according to the forward working duration and / or speed parameter of the driving mechanism; controlling the driving mechanism to work according to the backward working duration to drive the glue pushing member backward. The technical solution of the present application can control the driving mechanism to perform backward work according to the forward working duration and / or speed parameter of the driving mechanism after the driving mechanism stops moving forward, so that the backward movement of the glue pushing member can match the operating conditions and improve the operating experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of a power tool shown according to an embodiment.

[0034] Figure 2 is a schematic flowchart of a control method of a power tool shown according to an embodiment.

[0035] Figure 3 is a schematic flowchart of the control of the medium speed gear shown according to an embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used herein in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. In the present invention, "each" includes a quantity of one and more than two.

[0038] Figure 1 is a schematic structural diagram of a power tool shown according to an embodiment. As Figure 1 shown, the power tool includes an operating member 11, a driving mechanism 12, a glue pushing member 13 and a controller 14.

[0039] Among them, the operating member 11 is, for example, a wrench that partially protrudes outside the housing of the power tool. The user controls the power tool to start or stop pushing glue by pressing and releasing the wrench. When the user presses the wrench, a corresponding operation signal is triggered. After the controller 14 receives the operation signal, it controls the driving mechanism 12 to start working. When the user releases the wrench, the operation signal disappears, and the controller 14 controls the driving mechanism 12 to stop working. In some embodiments, it can also be that when the user presses and releases the wrench, a corresponding operation signal is triggered. After the controller 14 receives the operation signal, it controls the driving mechanism 12 to start working, and after working for a certain period of time, the controller 14 automatically controls the driving mechanism 12 to stop working. The driving mechanism 12 includes a driving member and a transmission member. Among them, the driving member is, for example, a motor, and the transmission member is, for example, a gear. The transmission member of the driving mechanism 12 cooperates with the operating member 11. When the driving member works, for example, when the motor rotates forward, the power of the driving member is transmitted to the glue-pushing member 13 through the transmission member, and the glue-pushing member 13 is pushed forward to realize the extrusion of glue. On the contrary, when the motor rotates in reverse, the glue-pushing member 13 is pulled back to realize the retraction of glue. The glue-pushing member 13 is, for example, a push rod.

[0040] The power tool can have different operating conditions, such as continuous glue extrusion and dotting. Among them, when continuously extruding glue, the duration of pressing the wrench is longer, and the amount of glue extruded continuously each time is more. When dotting, the duration of pressing the wrench is shorter, and the amount of glue extruded continuously each time is less. When the glue application time is longer, if the retraction time after shutdown is too short, the glue retraction is insufficient and it is easy to overflow. When the glue application time is shorter, if the retraction time after shutdown is too long, the retraction distance is too large, affecting the continuity of the dotting operation. When the forward speed of the glue-pushing member is faster, if the retraction time after shutdown is too short, the glue retraction is insufficient and it is easy to overflow. When the forward speed of the glue-pushing member is slower, if the retraction time after shutdown is too long, the retraction distance is too large, affecting the continuity of the dotting operation. It can be seen that in different operating conditions, excessive or insufficient retraction will affect the stability of glue control and thus affect the operation experience. For this reason, the present application proposes a technical solution to improve the retraction process of the glue-pushing member, which can make the retraction of the glue-pushing member match the operating conditions and improve the operation experience.

[0041] The control method of the power tool in the present application is executed by the controller 14. As Figure 2 shown, the control method of the power tool includes the following steps:

[0042] S21, in response to the operation signal of the operating member, control the driving mechanism to work according to the current speed parameter to drive the glue-pushing member forward;

[0043] S22, in response to the driving mechanism stopping working, obtain the forward working duration of the driving mechanism;

[0044] S23. Determine the reverse working duration of the driving mechanism according to the forward working duration and / or speed parameter of the driving mechanism.

[0045] S24. Control the driving mechanism to work according to the reverse working duration to drive the glue pushing member to retract.

[0046] Wherein, the current speed parameter refers to the parameter used to characterize the forward speed of the glue pushing member. For example, it can be a speed value or a speed gear. The speed gear can be a specific gear, such as gear 1, gear 2, gear 3, etc., or can be divided into speed ranges such as low speed gear, medium speed gear, high speed gear, etc. At this time, gear 1, gear 2, gear 3 can refer to specific gears in the low speed gear.

[0047] The forward working duration refers to the working duration when the driving mechanism drives the glue pushing member forward, that is, the duration from when the driving mechanism starts working to when it stops driving the glue pushing member forward. Taking the driving member in the driving mechanism as a motor and the motor rotating forward to drive the glue pushing member forward as an example, the forward working duration is the duration from when the motor starts rotating forward to when it stops rotating forward. Correspondingly, the reverse working duration refers to the working duration when the driving mechanism drives the glue pushing member to retract, that is, the duration from when the driving mechanism starts working to when it stops driving the glue pushing member to retract. Taking the driving member in the driving mechanism as a motor and the motor rotating in reverse to drive the glue pushing member to retract as an example, the reverse working duration is the duration from when the motor starts rotating in reverse to when it stops rotating in reverse.

[0048] It should be noted that the driving mechanism driving the glue pushing member forward or backward refers to the entire process of the controller controlling the driving mechanism to work. For example, in some matching structures between the driving mechanism and the glue pushing member, there will be a driving matching gap. In this case, the driving matching gap is an inherent parameter of the power tool, which is reflected as a distance in the moving direction of the glue pushing member. The existence of the driving matching gap will cause that after the driving member of the driving mechanism starts working, there is a distance during which the transmission member does not actually drive the glue pushing member forward or backward. In this application, when the driving mechanism starts working, it is considered to enter the process of driving the glue pushing member forward or backward, that is to say, this process does not depend on whether the glue pushing member actually moves forward or backward. It can be understood that for the matching structure without a driving matching gap, the driving mechanism can drive the glue pushing member forward or backward when it starts working.

[0049] In some embodiments, the retraction working duration of the driving mechanism can be determined according to the forward working duration of the driving mechanism. The forward working duration can reflect the current operating condition, such as whether it is a dispensing condition. Among them, when the forward working duration is short, it is a dispensing condition; otherwise, it is not a dispensing condition. Different forward working durations have different requirements for the retraction and ejection speeds of the glue. Therefore, determining the retraction working duration of the driving mechanism according to the forward working duration of the driving mechanism can ensure both the truncation when the glue retracts and the adaptability between the glue and the operation when the glue is ejected again, avoid too fast or too slow glue ejection when pressing the wrench, and improve the continuity of glue ejection during the entire operation process.

[0050] In some embodiments, the retraction working duration of the driving mechanism can be determined according to the speed parameter. The speed parameter can reflect the current operating condition, that is, the speed of glue ejection. Different glue ejection speeds have different requirements for the retraction and ejection speeds of the glue. Therefore, determining the retraction working duration of the driving mechanism according to the speed parameter can ensure both the truncation when the glue retracts and the adaptability between the glue and the operation when the glue is ejected again, avoid too fast or too slow glue ejection when pressing the wrench, and improve the continuity of glue ejection during the entire operation process.

[0051] In some embodiments, the retraction working duration of the driving mechanism can be determined according to the forward working duration and the speed parameter of the driving mechanism. The combination of the forward working duration and the speed parameter of the driving mechanism can more accurately reflect the current operating condition, such as rapid dispensing, slow continuous glue pushing, etc. Therefore, determining the retraction working duration of the driving mechanism according to the forward working duration and the speed parameter of the driving mechanism can more accurately ensure the truncation when the glue retracts and the adaptability between the glue and the operation when the glue is ejected again, avoid too fast or too slow glue ejection when pressing the wrench, and improve the continuity of glue ejection during the entire operation process. At the same time, the combination of the forward working duration and the speed parameter of the driving mechanism can enable users to obtain a better user experience under different operating conditions, and can make the device design more concise, be applicable to different models of power tools, and enhance the versatility of the solution. In addition, by more precisely controlling the retraction of the glue pushing member, it can effectively avoid the glue pushing member from retracting too much and hitting the housing of the power tool, reducing the risk of equipment damage.

[0052] In some embodiments, step S23, determining the retraction working duration of the driving mechanism according to the forward working duration and / or speed parameter of the driving mechanism includes:

[0053] Obtain the target duration threshold corresponding to the speed parameter;

[0054] Compare the forward working duration with the target duration threshold;

[0055] Determine the retraction working duration of the driving mechanism based on the comparison result and the speed parameter.

[0056] Among them, different speed parameters have corresponding target duration thresholds. The target duration threshold is used to distinguish the frequency level of the sizing operation at this speed parameter. When the forward working duration is greater than or equal to the target duration threshold, it means that the duration of each sizing is relatively long. When the forward working duration is less than the target duration threshold, it means that the duration of each sizing is relatively short. Thus, there is a corresponding operation frequency evaluation for different speed parameters, making the analysis of the working conditions more accurate. After comparing the forward working duration with the target duration threshold, the comparison result corresponds to different operation conditions of the current speed parameter. Subsequently, the reverse working duration of the driving mechanism can be further determined according to the current speed parameter, so that when the driving mechanism works for the corresponding duration, it can drive the glue pushing member back to a suitable position.

[0057] In some embodiments, determining the reverse working duration of the driving mechanism based on the comparison result and the speed parameter includes:

[0058] When the comparison result is that the forward working duration is greater than or equal to the target duration threshold, determine the reverse driving distance of the driving mechanism according to the speed parameter, and calculate the reverse working duration according to the reverse driving distance; when the comparison result is that the forward working duration is less than the target duration threshold, the reverse working duration is determined according to the distance compensation amount corresponding to the speed parameter;

[0059] Or,

[0060] Obtain the corresponding preset duration according to the comparison result, and determine the reverse working duration according to the preset duration.

[0061] Among them, the reverse driving distance is the theoretical distance for the driving mechanism to drive the glue pushing member back during the reverse operation. When there is no such driving fit gap between the driving mechanism and the glue pushing member, the actual reverse distance of the glue pushing member is equal to the theoretical distance. When there is such a driving fit gap between the driving mechanism and the glue pushing member, the theoretical distance includes the part of the driving fit gap. The actual reverse distance of the glue pushing member is less than the theoretical distance. Among them, when the theoretical distance is greater than or equal to the driving fit gap, after the driving mechanism drives a certain distance, the driving fit gap is completely compensated before actually driving the glue pushing member back, and the actual reverse distance of the glue pushing member is less than the theoretical distance. When the theoretical distance is less than the driving fit gap, only a part of the driving fit gap can be compensated during the operation of the driving mechanism, and it is impossible to further drive the glue pushing member back, and the actual reverse distance of the glue pushing member is 0. It can be understood that the existence of the reverse driving distance can adjust the driving fit gap that needs to be compensated when the driving mechanism drives the glue pushing member forward next time. Furthermore, it can adjust the waiting time required for the next glue output, improve the phenomenon that it takes a long time to output glue after pressing the trigger at a relatively low speed parameter, or a large amount of glue flows out after pressing the trigger at a relatively high speed parameter, and make the stability of glue output better when pressing the trigger at different speed parameters.

[0062] Under different speed parameters, the retraction driving distance of the driving mechanism will vary to adapt to the current operating conditions. After determining the retraction driving distance, the retraction working duration can be calculated based on the retraction speed. The retraction speeds corresponding to different speed parameters can be the same or different.

[0063] When the forward working duration is less than the target duration threshold, it indicates that the frequency of the current gluing operation is relatively high and the amount of glue discharged each time is small. At this time, the pushing member only needs to retract slightly or not at all to adapt to the high-paced operating conditions. The distance compensation amount is used to reduce the actual retraction distance of the pushing member, and then adjust the driving distance of the driving mechanism when driving the pushing member forward next time. The distance compensation amount can directly compensate the retraction driving distance of the driving mechanism to reduce the driving distance, or be converted into time to compensate the duration to reduce the actual retraction working duration.

[0064] In some embodiments, a corresponding preset duration is obtained according to the comparison result, and the retraction working duration is determined according to the preset duration. At this time, there may be no set conversion relationship between the preset duration and the retraction distance, for example, it can be an empirical value. According to different comparison results, the preset duration can be directly used as the retraction working duration, or used to adjust the theoretical retraction working duration to obtain the actual retraction working duration.

[0065] In the above solution, when determining the retraction working duration based on the distance, the determination of the retraction working duration can be applicable to different models of power tools and can more accurately control the retraction distance. When determining the retraction working duration based on the preset duration, the working logic is simple and the cost is low.

[0066] In some embodiments, the retraction driving distance is determined based on the driving fit clearance between the driving mechanism and the pushing member and the additional retraction distance. The speed parameter is used to represent the speed gear, and the additional retraction distance corresponding to the speed gear with a higher represented speed is greater than the additional retraction distance corresponding to the speed gear with a lower represented speed.

[0067] Among them, the additional retraction distance is used to further increase the retraction distance on the basis of the driving fit clearance. The driving fit clearance is an inherent parameter of the power tool. According to different speed parameters, the corresponding additional retraction distance can be adopted to adjust the retraction driving distance required for different speed parameters. The speed gears can be two gears, three gears or more. Hereinafter, taking the speed gears being divided into low speed gear, medium speed gear and high speed gear as an example for illustration.

[0068] (1) Low speed gear

[0069] When the forward working duration is greater than or equal to the target duration threshold, the pushing member has an obvious forward movement in the low speed gear. The target duration threshold of the low speed gear is determined according to the forward speed of the low speed gear, for example, it is 2s, and it is not limited here.

[0070] The calculation formula for the reverse working duration in the low speed gear can be expressed as follows:

[0071]

[0072] Where d g is the driving fit clearance, which is an inherent parameter of the structure of the power tool; Δd1 is the additional reverse distance; d g +Δd1 is the reverse driving distance; v b is the reverse speed (usually k times the maximum speed, k < 1).

[0073] In the low speed gear mode, Δd1 ≥ 0. This setting ensures that the reverse in the low speed gear can compensate for most or all of the driving fit clearance, and will not cause excessive reverse impact on the housing. In one embodiment, Δd1 = 0, that is, the reverse driving distance just compensates for the distance of the driving fit clearance.

[0074] (2) Medium speed gear

[0075] When the forward working duration is greater than or equal to the target duration threshold, the glue pushing part has an obvious forward movement in the medium speed gear. The target duration threshold of the medium speed gear is determined according to the forward speed of the medium speed gear, for example, 1 s, which is not limited here.

[0076] The calculation formula for the reverse working duration in the medium speed gear can be expressed as follows:

[0077]

[0078] Where d g is the driving fit clearance, which is an inherent parameter of the structure of the power tool; Δd2 is the additional reverse distance; d g +Δd2 is the reverse driving distance; v b is the reverse speed (usually k times the maximum speed, k < 1).

[0079] In the medium speed gear mode, Δd1 > 0. This setting needs to ensure that the reverse in the medium speed gear can completely compensate for the driving fit clearance, and can also make the glue pushing part retreat an additional distance without hitting the housing, so as to realize the glue retreat function.

[0080] (3) High speed gear

[0081] When the forward working duration is greater than or equal to the target duration threshold, the glue pushing part has an obvious forward movement in the high speed gear. The target duration threshold of the high speed gear is determined according to the forward speed of the high speed gear, for example, 1 s, which is not limited here. For example, it can also be less than 1 s.

[0082] The calculation formula for the reverse working duration in the high speed gear can be expressed as follows:

[0083]

[0084] where d g is the driving fit clearance, which is an inherent parameter of the structure of the power tool; Δd n is the additional retraction distance; d g +Δd n is the retraction driving distance; w b is the retraction speed (usually k times the maximum speed, k < 1).

[0085] In the high-speed gear mode, Δd n is greater than Δd2. This setting ensures that the retraction in the high-speed gear can fully compensate for the driving fit clearance, and can also make the glue-pushing part retract an additional distance without hitting the housing, so as to realize the glue-retracting function.

[0086] In some embodiments, the speed parameter is used to characterize the speed gear, and the retraction working duration is determined according to the distance compensation amount corresponding to the speed parameter, including:

[0087] When the speed gear is the first speed gear, the retraction working duration is determined according to the first distance compensation amount and the retraction speed;

[0088] When the speed gear is other speed gears with a forward speed greater than the first speed gear, the retraction working duration is determined according to the difference between the forward working duration and the second duration, and the second duration is determined according to the second distance compensation amount and the retraction speed.

[0089] Among them, the first distance compensation amount is less than the second distance compensation amount, indicating that the second distance compensation amount corresponding to the speed gear with a higher speed is less than the second distance compensation amount corresponding to the speed gear with a lower speed.

[0090] The first speed gear is a gear with a relatively low speed among all speed gears. When the forward working duration is less than the target duration threshold, the forward movement amount of the glue-pushing part is not obvious. At a relatively low gear speed, the distance compensation amount is directly used as the retraction driving distance, so that the retraction can be more accurately controlled to be less than that of other gears. For other speed gears with a forward speed greater than the first speed gear, the distance compensation amount is converted into a duration to compensate for the forward working duration to reduce the actual retraction working duration. Furthermore, compared with the gears with a lower speed, the retraction distance is slightly larger, but only a small amount of retraction is done, so as to better adapt to the operating conditions with a higher rhythm.

[0091] The speed gear can be two gears, three gears or more. Here, taking the speed gear divided into low-speed gear, medium-speed gear and high-speed gear as an example for illustration.

[0092] (1) Low-speed gear

[0093] The target duration threshold of the low-speed gear is determined according to the forward speed of the low-speed gear, for example, it is 2s, which is not limited here.

[0094] When the forward working duration is less than the target duration threshold, the distance compensation amount in the low speed gear can be selected as one-fifth or less of the driving fit clearance, and the reverse working duration is calculated based on the distance compensation amount and the reverse speed. It can be understood that the value of the distance compensation amount in the low speed gear is small, and the specific value is determined according to the actual forward speed of the low speed gear, which is not limited herein.

[0095] (2) Medium speed gear

[0096] The target duration threshold of the medium speed gear is determined according to the forward speed of the medium speed gear, for example, 1 s, which is not limited herein.

[0097] The calculation formula for the reverse working duration of the medium speed gear can be expressed as follows:

[0098] T b = T a - △T2

[0099] Wherein, T a is the forward working duration, ΔT2 is the second duration, and the formula for the second duration can be expressed as follows;

[0100]

[0101] Wherein, d g is the driving fit clearance, which is an inherent parameter of the structure of the caulking tool; v b is the reverse speed (usually k times the maximum speed, k < 1); k2 is the reserved time margin coefficient for the medium speed gear, and k2·d g is the second distance compensation amount. In this embodiment, k2 is taken as 0.4, indicating that the distance compensation amount in the medium speed gear mode is approximately equal to 0.4 times the driving fit clearance. It can be understood that the value of the distance compensation amount in the medium speed gear is determined according to the actual forward speed of the medium speed gear, which is not limited herein.

[0102] (3) High speed gear

[0103] The target duration threshold of the high speed gear is determined according to the forward speed of the high speed gear, for example, 1 s, which is not limited herein.

[0104] The calculation formula for the reverse working duration of the high speed gear can be expressed as follows:

[0105] T b = T a - △T3

[0106] Wherein, T aThe forward working duration is ΔT1, and ΔT3 is the second duration, which is determined according to the second distance compensation amount. In this embodiment, in the high-speed gear mode, the distance compensation amount is approximately equal to 0.4 times the driving fit clearance or slightly less than 0.4 times. Since the glue discharging speed in the high-speed gear is relatively fast and the retraction distance is slightly larger, more response time can be left for the operator. It can be understood that the value of the distance compensation amount in the high-speed gear is determined according to the actual forward speed in the high-speed gear, and no limitation is made here.

[0107] In some embodiments, the speed parameter is used to represent the speed gear. According to the comparison result, the corresponding preset duration is obtained, and the retraction working duration is determined according to the preset duration, including:

[0108] When the comparison result is that the forward working duration is greater than or equal to the target duration threshold, the first preset duration corresponding to the speed parameter is obtained as the retraction working duration, where the first preset duration corresponding to the speed gear representing a higher speed is greater than the first preset duration corresponding to the speed gear representing a lower speed;

[0109] When the comparison result is that the forward working duration is less than the target duration threshold and the speed gear is the first speed gear, the second preset duration is obtained as the retraction working duration;

[0110] When the comparison result is that the forward working duration is less than the target duration threshold and the speed gear is other speed gears with a forward speed greater than the first speed gear, the third preset duration is obtained, and the difference between the forward working duration and the third preset duration is used as the retraction working duration, where the third preset duration corresponding to the speed gear representing a higher speed is less than the third preset duration corresponding to the speed gear representing a lower speed.

[0111] Among them, when the comparison result is that the forward working duration is greater than or equal to the target duration threshold, as the forward speed increases, the retraction working duration also increases. For example, the low-speed gear is 0.5 s, the medium-speed gear is 0.8 s, and the high-speed gear is 0.9 s, but not limited thereto.

[0112] When the comparison result is that the forward working duration is less than the target duration threshold, different methods are used to determine the retraction working duration according to different gears. The first speed gear is the gear with a relatively low speed among the speed gears, and the second preset duration is used as the retraction working duration, such as 0.1 s, but not limited thereto. For other speed gears with a forward speed greater than the first speed gear, the difference between the forward working duration and the third preset duration is used as the retraction working duration. For example, the third preset duration of the medium-speed gear is 0.2 s, and the third preset duration of the high-speed gear is 0.1 s, but not limited thereto. The first preset duration, the second preset duration, and the third preset duration can be empirical values or can be calculated and stored according to the required distance compensation amount.

[0113] In some embodiments, after obtaining the forward working duration of the driving mechanism in response to the driving mechanism stopping working, the method further includes:

[0114] Determine whether the forward working duration is greater than or equal to a preset duration threshold;

[0115] If it is greater than or equal to the preset duration threshold, then enter the step of determining the reverse working duration of the driving mechanism according to the forward working duration and speed parameter of the driving mechanism;

[0116] If it is less than the preset duration threshold, then do not control the driving mechanism to perform reverse working.

[0117] Among them, the operation time of the operating part being too short may be a misoperation or malicious operation. Setting not to reverse can avoid equipment damage. The preset duration threshold is, for example, 0.2s, but no specific limitation is made.

[0118] Please refer to Figure 3 , and the control method of the power tool will be illustrated by taking the medium speed gear as an example below.

[0119] When in the medium speed gear and the trigger (i.e., the operating part) is detected to be pressed, start recording the pressing duration of the trigger. At the same time, control the motor (i.e., the driving part of the driving mechanism) to rotate forward at the speed corresponding to the medium speed gear, drive the glue pushing part to move forward, and realize glue pushing. When the trigger is detected to be released, record the total pressing duration of the trigger (i.e., the forward working duration Ta of the driving mechanism), and at the same time, the motor stops.

[0120] Determine whether Ta is greater than the preset duration threshold (for example, 0.2s). When Ta is less than 0.2s, it is judged as a misoperation or malicious operation, and no reverse working is performed, and the motor remains in the stopped state. When Ta is greater than or equal to 0.2s, further compare Ta with the target duration threshold (for example, 1s). If Ta is less than or equal to the target duration threshold, the glue application frequency is relatively high, and the motor performs a short-time reverse rotation to retreat a small amount. The reverse working duration is the difference between the forward working duration and the second preset duration, for example, Ta - 0.2s. If Ta is greater than the target duration threshold, the glue application frequency is relatively low, and the motor performs a relatively long-time reverse rotation. The reverse working duration is the first preset duration corresponding to the medium speed gear, for example, 0.8s. After controlling the motor to reverse for the corresponding duration, control the motor to stop, and complete a glue application control.

[0121] The control method of the power tool of the present application has the following beneficial effects:

[0122] 1. Effectively prevent the housing from being damaged: By precisely controlling the reverse time, it can effectively avoid the glue pushing part retreating too much and hitting the housing, reducing the risk of equipment damage;

[0123] 2. Dynamically adapt to user operations: Automatically adjust the retraction time according to different gears and working hours, making the retraction operation more intelligent, avoiding the situation of too long or too short retraction distance, and ensuring the fluency and stability during use;

[0124] 3. Optimize dispensing control: By controlling the retraction time, each retraction can match the forward operation, effectively avoiding the problem of unstable glue control caused by too long retraction time during dispensing;

[0125] 4. Simplify the design and improve the user experience: Adopt a combined control method of gears and working hours, making the device design more concise, and users can obtain a better use experience in different operation modes;

[0126] 5. General adaptation: The control logic of the retraction working duration is applicable to different models of power tools, enhancing the versatility of the solution.

[0127] The control method of the power tool of the present application includes: responding to the operation signal of the operating member, controlling the driving mechanism to work according to the current speed parameter to drive the glue pushing member forward; responding to the driving mechanism stopping working, obtaining the forward working duration of the driving mechanism; determining the retraction working duration of the driving mechanism according to the forward working duration and / or speed parameter of the driving mechanism; controlling the driving mechanism to work according to the retraction working duration to drive the glue pushing member to retract. The technical solution of the present application can control the driving mechanism to perform retraction work according to the forward working duration and / or speed parameter of the driving mechanism after the driving mechanism stops advancing, so that the retraction of the glue pushing member can match the operation conditions and improve the operation experience.

[0128] The present application also provides an electronic device, including a storage medium and a controller. A computer program is stored on the storage medium, and when the computer program is executed by the controller, the steps of the control method of the power tool as described in the above embodiments are implemented.

[0129] In some embodiments, the electronic device includes a power tool.

[0130] The present application also provides a storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the control method of the power tool as described in the above embodiments are implemented.

[0131] The above embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A control method for a power tool, characterized in that, The power tool includes an operating member, a driving mechanism and a glue pushing member, and the method includes the following steps: In response to an operation signal of the operating member, control the driving mechanism to operate according to a current speed parameter to drive the glue pushing member forward; In response to the driving mechanism stopping operating, obtain the forward operating duration of the driving mechanism; Determine a reverse operating duration of the driving mechanism according to the forward operating duration of the driving mechanism and / or the speed parameter; Control the driving mechanism to operate according to the reverse operating duration to drive the glue pushing member to retract.

2. The method according to claim 1, characterized in that, The determining the reverse operating duration of the driving mechanism according to the forward operating duration of the driving mechanism and / or the speed parameter includes: Obtain a target duration threshold corresponding to the speed parameter; Compare the forward operating duration with the target duration threshold; Determine the reverse operating duration of the driving mechanism based on the comparison result and the speed parameter.

3. The method according to claim 2, wherein The determining the reverse operating duration of the driving mechanism based on the comparison result and the speed parameter includes: When the comparison result is that the forward operating duration is greater than or equal to the target duration threshold, determine a reverse driving distance of the driving mechanism according to the speed parameter, and calculate the reverse operating duration according to the reverse driving distance; when the comparison result is that the forward operating duration is less than the target duration threshold, the reverse operating duration is determined according to a distance compensation amount corresponding to the speed parameter; Or, Obtain a corresponding preset duration according to the comparison result, and determine the reverse operating duration according to the preset duration.

4. The method according to claim 3, wherein The reverse driving distance is determined based on a driving cooperation gap between the driving mechanism and the glue pushing member and an additional reverse distance, and the speed parameter is used to represent a speed gear, and the additional reverse distance corresponding to a speed gear representing a higher speed is greater than the additional reverse distance corresponding to a speed gear representing a lower speed.

5. The method according to claim 3 or 4, characterized in that, The speed parameter is used to represent a speed gear, and the determining the reverse operating duration according to a distance compensation amount corresponding to the speed parameter includes: When the speed gear is a first speed gear, the reverse operating duration is determined according to a first distance compensation amount and a reverse speed; When the speed gear is other speed gears with a forward speed greater than the first speed gear, determine the reverse operating duration according to a difference between the forward operating duration and a second duration, and the second duration is determined according to a second distance compensation amount and a reverse speed; Wherein, the first distance compensation amount is less than the second distance compensation amount; the second distance compensation amount corresponding to a speed gear representing a higher speed is less than the second distance compensation amount corresponding to a speed gear representing a lower speed.

6. The method according to claim 3, wherein The speed parameter is used to represent a speed gear, and the obtaining a corresponding preset duration according to the comparison result and determining the reverse operating duration according to the preset duration includes: When the comparison result is that the forward operating duration is greater than or equal to the target duration threshold, obtain a first preset duration corresponding to the speed parameter as the reverse operating duration, wherein the first preset duration corresponding to a speed gear representing a higher speed is greater than the first preset duration corresponding to a speed gear representing a lower speed; When the comparison result is that the forward working duration is less than the target duration threshold and the speed gear is the first speed gear, obtain a second preset duration as the reverse working duration; When the comparison result is that the forward working duration is less than the target duration threshold and the speed gear is other speed gears with a forward speed greater than the first speed gear, obtain a third preset duration, and use the difference between the forward working duration and the third preset duration as the reverse working duration, where the third preset duration corresponding to the speed gear with a higher speed is less than the third preset duration corresponding to the speed gear with a lower speed.

7. The method according to claim 1, characterized in that, After obtaining the forward working duration of the driving mechanism in response to the driving mechanism stopping working, the method further includes: Determine whether the forward working duration is greater than or equal to a preset duration threshold; If it is greater than or equal to the preset duration threshold, enter the step of determining the reverse working duration of the driving mechanism according to the forward working duration of the driving mechanism and the speed parameter; If it is less than the preset duration threshold, do not control the driving mechanism to perform reverse working.

8. An electric tool, characterized in that, The power tool includes an operating member, a driving mechanism, a glue pushing member and a controller, and the controller is used to execute the steps of implementing the control method of the power tool according to any one of claims 1 to 7.

9. An electronic device, comprising a storage medium and a controller, characterized in that, A computer program is stored on the storage medium, and when the computer program is executed by the controller, the steps of implementing the control method of the power tool according to any one of claims 1 to 7 are realized.

10. A storage medium, characterized in that, A computer program is stored on the storage medium, and when the computer program is executed by a processor, the steps of implementing the control method of the power tool according to any one of claims 1 to 7 are realized.

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