Electric spindle structure

Abstract

The invention relates to the technical field of motorized spindle equipment, in particular to a motorized spindle structure. The motorized spindle structure comprises a pipeline disc, a broach ring, a fixing assembly and a detection unit. A mounting space and a mounting hole communicated with the mounting space are formed in the pipeline disc; the broach ring is arranged in the mounting space in an axial moving manner; the fixing assembly is mounted in the mounting hole, the fixing assembly is provided with a first hole section and a second hole section which share the central axis and are communicated, and the inner diameter of the first hole section is smaller than that of the second hole section; the detection unit and the first hole section are installed in a matched mode, the radial position of the detection unit in the installation space can be adjusted by adjusting the axial position of the detection unit in the first hole section, and the radial position of the detection unit can be observed through a gap between the second hole section and the detection unit. The radial position of the detection unit can be quickly adjusted, so that the installation efficiency of the detection unit is improved, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of spindle equipment, and in particular to an electric spindle structure. Background Art

[0002] There are three tool states for the spindle: no tool, broaching and tooling. In the no tool state, the spindle does not have a tool. In the broaching state, the spindle has a tool. In the tooling state, the spindle has the condition to remove or install the tool. The induction disk on the pull rod of the spindle in different states will be in different positions. In the no tool state, the induction disk is in the last position, in the broaching state, the induction disk is in the middle position, and in the tooling state, the induction disk is in the front position. Three proximity switches are arranged at three positions of the induction disk. The position of the induction disk is identified by the proximity switch to obtain the tool state of the spindle.

[0003] The existence of a dimension chain in the assembly of the spindle parts will cause the position of the induction disc to not coincide with the position of the proximity switch in the radial direction. In addition, the sensing range of the proximity switch is limited, which will make it impossible for the proximity switch to identify the induction disc within a certain range. In addition, the existing proximity switches used to detect the induction disc are generally adjusted in their radial position based on the operator's feel. Therefore, there is a certain installation error, which effectively reduces the installation efficiency of the proximity switch.

[0004] On the other hand, after the existing proximity switch is installed at a designated position, the proximity switch may become loose over time, causing the proximity switch to be unable to detect various states of the sensor disk, thereby reducing the user experience. Summary of the invention

[0005] In view of this, the present application provides an adjustment device and a spindle structure to solve the problems of low installation efficiency and poor user experience of existing proximity switches in electric spindle structures.

[0006] An embodiment of the present application provides an electric spindle structure, which includes a pipeline plate, a broach ring, a fixing assembly and a detection unit;

[0007] The pipe tray has an installation space inside, and the pipe tray is provided with an installation hole connected with the installation space;

[0008] A broach ring is axially movable in the installation space, and an induction disc is arranged in the broach ring;

[0009] a fixing assembly installed in the mounting hole, the fixing assembly having a first hole segment and a second hole segment with a common central axis, one end of the first hole segment being connected to the mounting space, the other end of the first hole segment being connected to one end of the second hole segment, the other end of the second hole segment being connected to an outer area of the pipe tray, and the inner diameter of the first hole segment being smaller than the inner diameter of the second hole segment;

[0010] A detection unit for detecting the state of the induction disc. The detection unit is adaptively installed with the first hole section. By adjusting the axial position of the detection unit in the first hole section, the radial position of the detection unit in the installation space can be adjusted, and the radial position of the detection unit can be observed through the gap between the second hole section and the detection unit.

[0011] In some embodiments, a position-in-place detection piece is provided on the outer wall of one end of the detection unit away from the installation space. The position-in-place detection piece has a first state indicating that the radial position adjustment of the detection unit is in place and a second state indicating that the adjustment is not in place.

[0012] In some embodiments, the first hole section is a threaded hole section and the second hole section is a through hole section;

[0013] The outer side wall of the detection unit has an external connection threaded section, and the position-in-place detection piece is arranged on the detection unit on the side of the external connection threaded section and away from the installation space;

[0014] The external connection threaded section of the detection unit is threadedly connected with the first hole section. By adjusting the position of the threaded connection, the radial position of the detection unit in the installation space can be adjusted.

[0015] In some embodiments, it includes a first locking assembly. The first locking assembly includes a first set screw. The fixing assembly has a first set screw hole arranged radially, and the first set screw hole communicates with the installation hole;

[0016] After the radial position of the detection unit in the installation space is installed in place, the first set screw locks the detection unit through the first set screw hole.

[0017] In some embodiments, the fixing assembly includes a body having a central axis. The central axes of the first hole section and the second hole section are not coaxial with the central axis of the body. By rotating and adjusting the position of the fixing assembly in the installation hole, the axial position of the detection unit in the installation space is adjusted.

[0018] In some embodiments, the fixing assembly includes an eccentric mounting piece. An eccentric mounting hole is provided on one side of the body where the first hole section is located. The eccentric mounting hole is used to be adaptively connected with the eccentric mounting piece to adjust the axial position of the detection unit in the installation space through the eccentric mounting piece.

[0019] In some embodiments, the distance between the central axis of the eccentric mounting hole and the central axis of the body is a first distance, and the distance between the central axes of the first hole section and the second hole section and the central axis of the body is a second distance;

[0020] Wherein, the second distance is less than the first distance.

[0021] In some embodiments, an axial limiting assembly is formed between the outer side wall of the body and the mounting hole, and the axial limiting assembly is used to limit the mounting position of the body in its axial direction.

[0022] In some embodiments, the axial limiting assembly includes a limiting step and a mating step that are used in cooperation;

[0023] The limiting step is formed on the outer side wall of the body;

[0024] The mating step is formed in the mounting hole.

[0025] In some embodiments, a second locking assembly is included, and the second locking assembly includes a second setscrew;

[0026] A second setscrew hole is provided on the pipeline disc. When the fixing assembly is installed and adjusted in place, the second setscrew is installed in the second setscrew hole to lock the fixing assembly.

[0027] In some embodiments, an oil cylinder device is further included, and the oil cylinder device includes an oil cylinder fixing seat and an oil cylinder assembly;

[0028] The oil cylinder fixing seat is arranged on the top surfaces of the pipeline disc and the broach ring;

[0029] The oil cylinder assembly is accommodated in the oil cylinder fixing seat, and the oil cylinder assembly is sleeved on the induction disc;

[0030] A third setscrew hole is provided on the oil cylinder fixing seat and is arranged opposite to the second setscrew hole. A third setscrew is arranged in the third setscrew hole, and the third setscrew is arranged at an interval from the second setscrew;

[0031] Wherein, the top surface of the third setscrew is flush with the top surface of the third setscrew hole; or, the top surface of the third setscrew is lower than the top surface of the third setscrew hole.

[0032] In some embodiments, an avoidance hole is provided on the broach ring and is arranged opposite to the mounting hole;

[0033] The avoidance hole is an elliptical structure with a long axis and a short axis, and the short axis dimension of the avoidance hole is larger than the aperture dimension of the mounting hole;

[0034] Moreover, the major axis dimension of the avoidance hole is greater than the axial movement dimension of the broach ring within the installation space.

[0035] In some embodiments, the number of the installation holes, the avoidance holes, and the detection units is three each;

[0036] The three detection units respectively correspond to the broaching state, the tool breakage state, and the no-tool state of the tool within the induction disc.

[0037] In some embodiments, the detection unit includes a proximity switch;

[0038] The electric spindle structure further includes a protective cover;

[0039] The protective cover is fastened to the pipeline disc and is used for protecting the proximity switch and the data cable connected to the proximity switch.

[0040] In some embodiments, a loosening prevention assembly is provided on the pipeline disc;

[0041] The loosening prevention assembly includes a loosening prevention hole, a loosening prevention member, and a loosening prevention ring. The loosening prevention hole is provided on one side of the installation hole. The loosening prevention member is passed through the loosening prevention ring and fastened within the loosening prevention hole. The loosening prevention ring is used for preventing loosening and backstepping of the detection unit provided within the installation hole.

[0042] Compared with the prior art, the beneficial effects of the present application mainly lie in:

[0043] In the electric spindle structure of the present application, the electric spindle structure includes a pipeline disc, a broach ring, a fixing assembly, and a detection unit; the pipeline disc has an installation space inside, and the pipeline disc is provided with installation holes communicating with the installation space; the broach ring is axially movable within the installation space, and an induction disc is provided within the broach ring; the fixing assembly is installed within the installation hole, and the fixing assembly has a first hole section and a second hole section with a common central axis. One end of the first hole section communicates with the installation space, and the other end communicates with one end of the second hole section. The other end of the second hole section communicates with the external area of the pipeline disc. The inner diameter of the first hole section is smaller than that of the second hole section; the detection unit is used for detecting the state of the induction disc. The detection unit is adaptively installed with the first hole section. By adjusting the axial position of the detection unit within the first hole section, the radial position of the detection unit within the installation space is adjusted, so as to observe whether the adjustment of the radial position of the detection unit is in place through the gap between the second hole section and the detection unit. The present application can quickly realize the adjustment of the radial position of the detection unit, thereby improving the installation efficiency of the detection unit and the user experience. Description of the Drawings

[0044] To more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0045] The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present application can be implemented. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present application can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present application.

[0046] Figure 1 is a partial structural schematic diagram of an electric spindle structure according to an embodiment of the present application;

[0047] Figure 2 is a cross-sectional view of an electric spindle structure according to an embodiment of the present application;

[0048] Figure 3 is a structural schematic diagram of the body in an electric spindle structure according to an embodiment of the present application;

[0049] Figure 4 is a structural schematic diagram of a pipeline disc in an electric spindle structure according to an embodiment of the present application;

[0050] Figure 5 is a structural schematic diagram of a broach ring in an electric spindle structure according to an embodiment of the present application;

[0051] Figure 6 is a structural schematic diagram of an oil cylinder fixing seat in an electric spindle structure according to an embodiment of the present application;

[0052] Figure 7 is a structural schematic diagram of a protective cover in an electric spindle structure according to an embodiment of the present application.

[0053] Reference numerals:

[0054] 100, electric spindle structure;

[0055] 110, pipeline disc; 111, mounting hole; 1111, first mounting hole; 1112, second mounting hole; 1113, third mounting hole; 112, second set screw hole;

[0056] 120, broach ring; 121, avoidance hole; 1211, first avoidance hole; 1212, second avoidance hole; 1213, third avoidance hole; 129, induction disc;

[0057] 130. Fixed component; 131. First hole section; 132. Second hole section; 133. First set screw hole; 134. Body; 1341. Limiting step; 134a. First surface; 134b. Second surface; 135. Eccentric mounting hole

[0058] 140. Detection unit; 141. In-place detection part

[0059] 150. First locking component

[0060] 160. Second locking component

[0061] 171. Oil cylinder fixing seat; 1711. Third set screw hole; 172. Oil cylinder assembly; 173. Third set screw

[0062] 180. Protective cover; 181. Wiring harness cavity; 182. Wire outlet hole

[0063] 190. Anti-loosening component; 191. Anti-loosening hole; 192. Anti-loosening part; 193. Anti-loosening ring

[0064] L1. First distance; L2. Second distance Detailed implementation manners

[0065] The following specific embodiments illustrate the implementation manners of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application

[0066] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "the" and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two, but does not exclude the case of including at least one

[0067] It should be understood that the term " / and / " used herein is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after

[0068] It should also be noted that the term "comprise", "include" or any other variant thereof is intended to cover non-exclusive inclusion, such that a commodity or system including a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such commodity or system. Without further limitation, an element defined by the statement "including one..." does not exclude the presence of additional identical elements in the commodity or system including said element.

[0069] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and should not be construed as a limitation of the present application.

[0070] As Figures 1 to 7 shown, an exemplary embodiment of the present application provides an electric spindle structure 100. The electric spindle structure 100 includes a pipeline disk 110, a tool pull ring 120, a fixing assembly 130, and a detection unit 140.

[0071] The pipeline disk 110 has an installation space inside, and this installation space provides an installation site for other components such as the tool pull ring 120, the oil cylinder device, the induction disk 129, etc. The pipeline disk 110 is provided with an installation hole 111 communicating with the installation space, and the installation hole 111 can provide a channel for the installation of other components such as the fixing assembly 130 and the connection between the internal structure and the outside.

[0072] Among them, the number of the installation holes 111 is at least one, or the number of the installation holes 111 can also be three to correspondingly install three detection units 140, so as to correspond to three states of the tool in the induction disk through the three detection units 140, that is, the three detection units 140 respectively correspond to the tool pulling state, the tool hitting state, and the no-tool state of the tool.

[0073] The tool pull ring 120 is axially movable and arranged in the installation space, and an induction disk 129 is arranged inside the tool pull ring 120. Among them, a tool is arranged inside the induction disk 129. The induction disk 129 of the electric spindle structure 100 will be in different positions in different states. When the tool is in the no-tool state, the induction disk 129 is in the last position. When the tool is in the tool pulling state, the induction disk 129 is in the middle position. When the tool is in the tool hitting state, the induction disk 129 is in the foremost position.

[0074] The fixing component 130 is installed in the installation hole 111. Among them, the fixing component 130 has a first hole section 131 and a second hole section 132. The first hole section 131 and the second hole section 132 are coaxially arranged, that is, they have a common central axis. One end of the first hole section 131 is connected to the installation space, the other end of the first hole section 131 communicates with one end of the second hole section 132, and the other end of the second hole section 132 communicates with the external area of the pipeline disc 110.

[0075] That is to say, a through hole running through the entire fixing component 130 in its axial direction is formed in the fixing component 130. This through hole includes the first hole section 131 and the second hole section 132. Based on this, through the structural settings of the first hole section 131 and the second hole section 132, a channel connecting the inside and the outside of the pipeline disc 110 is constructed, so as to facilitate fixing the detection unit 140 in the above-mentioned channel to effectively detect the working state of the induction disc 129 inside the installation space, enabling rapid interaction between the internal structure and the external structure of the pipeline disc 110.

[0076] The inner diameter of the first hole section 131 is smaller than the aperture of the second hole section 132. The first hole section 131 is used to complete the installation of the detection unit 140. This difference in inner diameter helps to limit or position the detection unit 140 when installing the detection unit 140. Or, after the detection unit 140 is installed in place, the gap between the inner diameter of the second hole section 132 and the outer side wall of the detection unit 140 can be used to judge whether the detection unit 140 is installed in place.

[0077] Among them, the first hole section 131 can be used to complete the installation of the detection unit 140. That is, the detection unit 140 is adaptively installed with the first hole section 131 to ensure the stability of the inspection unit 140 in the fixing component 130 and the accuracy of detecting the induction disc 129. By adjusting the axial position of the detection unit 140 in the first hole section 131, the radial position of the detection unit 140 in the installation space is adjusted.

[0078] The radial position of the detection unit 140 can be observed through the gap between the second hole section 132 and the detection unit 140. Among them, by using the gap as an intuitive observation basis, it can be quickly and accurately judged whether the radial position of the detection unit 140 along the radial direction of the pipeline disc 110 is installed or adjusted in place.

[0079] For example, in one example, the detection unit 140 may include, but is not limited to, a proximity switch. After the specification dimensions, installation dimensions, etc. of the induction disk 129 have been confirmed and the specifications of the proximity switch to be used have also been determined, an infrared induction source may be provided in the second hole section 132, and a sensing end adapted to the infrared induction source may be provided on the proximity switch. By adjusting the detection distance of the infrared induction source according to the above gap, after the proximity switch is installed in place, the infrared induction source and the sensing end form a detection cooperation and issue a reminder, thereby warning the operator that the proximity switch has been installed in place.

[0080] Alternatively, a first contact portion may be provided on the detection unit 140, and a second contact portion may be provided in the second hole section 132. Among them, as the detection unit 140 axially moves along the second hole section 132 in the first hole section 131, when the first contact portion and the second contact portion come into contact, it indicates that the detection unit 140 has been adjusted or installed in place. Among them, the size of the gap is the total height size of the two when the first contact portion and the second contact portion are in contact. That is to say, the gap can satisfy the condition that there is relative rotation between the first contact portion and the second contact portion during the rotation of the detection unit 140.

[0081] In this example, through the implementation of the above structure, the radial position adjustment of the detection unit 140 can be quickly realized, thereby improving the installation efficiency of the detection unit 140, and further ensuring and improving the user experience.

[0082] As Figures 1 to 7 shown, in some embodiments, a position detection member 141 is provided on the outer wall of the end of the detection unit 140 far from the installation space. The position detection member 141 has a first state indicating that the radial position adjustment of the detection unit 140 is in place and a second state indicating that the adjustment is not in place. Among them, during the process of adjusting the axial position of the detection unit 140 in the first hole section 131, the state of the position detection member 141 is observed through the gap between the second hole section 132 and the detection unit 140 to determine whether the radial position adjustment of the detection unit 140 is in place.

[0083] The gap serves as an observation window, through which the state of the position detection member 141 can be intuitively and clearly observed, so that the radial position adjustment situation of the detection unit 140 can be quickly judged. Among them, the position detection member 141 may be a convex body with a color mark. When the radial position of the detection unit 140 is adjusted in place, through the gap, it can be seen that the convex body reaches a certain specific position or presents a certain specific state, such as being aligned with a specified position on the inner wall of the second hole section 132. This method of observing through the gap simply and effectively realizes the judgment of the radial position adjustment of the detection unit 140, does not require complex internal detection equipment, reduces the detection cost and improves the operability.

[0084] In one example, the in-place detection member 141 may include, but is not limited to, a detection indicator light. The detection unit 140 can adjust its radial distance from the induction disc 129 by means of a threaded connection. After the detection end of the detection unit 140 recognizes the induction disc 129, the detection indicator light can be observed through the above-mentioned gap to determine whether the radial position adjustment of the detection unit 140 is in place. If the light is on, it indicates that the radial position adjustment of the detection unit 140 is in place; otherwise, it indicates that the radial position adjustment of the detection unit 140 is not in place.

[0085] In another example, the in-place detection member 141 may be an acoustic-optical indicator light. The detection unit 140 can adjust its radial distance from the induction disc 129 by means of a threaded connection. After the detection end of the detection unit 140 recognizes the induction disc 129, the acoustic-optical indicator light can be observed through the above-mentioned gap to determine whether the light is on and whether there is a sound prompt, so as to judge whether the radial position adjustment of the detection unit 140 is in place. If the light is on and there is a sound prompt, it indicates that the radial position adjustment of the detection unit 140 is in place; otherwise, it indicates that the radial position adjustment of the detection unit 140 is not in place.

[0086] As Figures 1 to 7 shown, in some embodiments, the first hole section 131 is a threaded hole section. The presence of the thread enables the first hole section 131 to be stably connected to other components with a matching thread structure. For example, the thread in the threaded hole section of the first hole section 131 cooperates with the external connection thread section of the detection unit 140. Based on this, the threaded connection method can provide good connection stability for the detection unit 140, and then cooperate with other locking structures or locking parts to prevent the detection unit 140 from undergoing unnecessary displacement during operation.

[0087] In addition, the threaded connection can also achieve precise position adjustment of the inspection unit 140 in the radial position. Since the pitch of the thread is fixed, by rotating the detection unit 140, the position of the detection unit 140 in its axial direction can be precisely changed according to the size of the pitch, thereby indirectly adjusting the radial position of the detection unit 140 in the installation space.

[0088] The second hole section 132 is a through-hole section, and the through-hole section is used to characterize that the inner wall of the entire second hole section 132 is a smooth structure. The through-hole section can provide a communication channel from the first hole section 131 to the external area of the pipeline disc 110. The through-hole section and the first hole section 131 jointly construct a complete connection and observation path.

[0089] The in-place detection part 141 is arranged on the detection unit 140 on the side of the external connection thread section and away from the installation space. When the detection unit 140 is axially position-adjusted by threaded connection, the position of the in-place detection part 141 will also change accordingly. The movement state of the in-place detection part 141 can be conveniently observed through the gap between the second hole section 132 and the detection unit 140. Based on this, it is possible to quickly and accurately determine whether the radial position of the detection unit 140 is adjusted in place without damaging the internal structure.

[0090] As Figures 1 to 7 shown, in some embodiments, the electric spindle structure 100 further includes a first locking assembly 150. The first locking assembly 150 includes a first set screw. Among them, the fixing assembly 130 has a first set screw hole 133 arranged radially, and the first set screw hole 133 here extends along the radial direction of the fixing assembly 130.

[0091] After the radial position of the detection unit 140 is installed in the installation space, the first set screw locks the detection unit 140 through the first set screw hole 133, so as to effectively prevent the detection unit 140 from having a radial displacement during the subsequent operation of the electric spindle structure 100. When the electric spindle structure 100 is working, various forces such as vibration and rotation will act. If the detection unit 140 is not locked, its position may change, thus affecting the accuracy of tool state detection and the normal operation of the entire electric spindle structure 100. Through the locking of the first set screw, the position of the detection unit 140 in the installation space is ensured to be fixed, thereby improving the stability and reliability of the electric spindle structure 100 during use.

[0092] As Figures 1 to 7 shown, in some embodiments, the fixing assembly 130 includes a body 134 having a central axis. The central axes of the first hole section 131 and the second hole section 132 are not coaxial with the central axis of the body 134, that is, the central axes of the first hole section 131 and the second hole section 132 do not coincide with the central axis of the body 134.

[0093] In this example, the central axes of the first hole section 131 and the second hole section 132 are offset in a specific direction relative to the central axis of the body 134, so as to facilitate the subsequent setting of other components on the body 134 and use the gas components to effectively control and adjust the rotation of the entire fixing assembly 130, etc. That is to say, by rotating the fixing assembly 130 to fix its position in the installation hole 111, the axial position of the detection unit 140 in the installation space is adjusted.

[0094] In one example, referring to Figures 1 to 3As shown, the fixing assembly 130 further includes an eccentric mounting member (not shown in the figure), and an eccentric mounting hole 135 is provided on the body 134 at one side of the first hole section 131. The eccentric mounting hole 135 is used to be adapted to be connected with the eccentric mounting member (not shown in the figure) so as to adjust the axial position of the detection unit 140 in the installation space through the eccentric mounting member (not shown in the figure).

[0095] The central axis of the eccentric mounting hole 135 may be in the same straight line as the central axis of the first hole segment 131 and the second hole segment 132 and the central axis of the body 134. Alternatively, the central axis of the eccentric mounting hole 135 may not be in the same straight line as the central axis of the first hole segment 131 and the second hole segment 132 and the central axis of the body 134.

[0096] In a specific example, if Figure 3 As shown, the distance between the central axis of the eccentric mounting hole 135 and the central axis of the body 134 is a first distance L1, and the distance between the central axis of the first hole section 131 and the second hole section 132 and the central axis of the body 134 is a second distance L2. The second distance L2 is smaller than the first distance L1, that is, L2<L1.

[0097] In this example, by limiting the size of the first distance L1 and the second distance L2, it is possible to adjust the detection unit 140 within a larger axis range within a smaller rotation range.

[0098] It should be noted that the specific setting position of the eccentric mounting hole 135 can be flexibly linked and designed based on the detection parameters (such as specific specifications, detection distance and detection range) of the detection unit 140. For example, when the detection distance and detection range of the detection unit 140 are large, the eccentric mounting hole 135 can be set on the side relatively close to the second hole segment 132; and when the detection distance and detection range of the detection unit 140 are small, the eccentric mounting hole 135 is set on the side relatively far from the second hole segment 132. Based on this, the relative position of the eccentric mounting hole 135 can be flexibly set based on the detection parameters of the detection unit 140.

[0099] In one example, an eccentric mounting member (not shown in the figure) may include but is not limited to a screw or an adjusting rod, which is screwed into the eccentric mounting hole 135 to facilitate the rotation of the fixing assembly 130 in the mounting hole 111 of the pipe disk 110, thereby enabling the detection unit 140 to have an axial position adjustment function, thereby being able to identify the sensing disk 129 within a larger detection range.

[0100] like Figures 1 to 7As shown, in some embodiments, an axial limiting component is provided between the outer wall of the body 134 and the mounting hole 111, and this axial limiting component is used to limit the mounting position of the body 134 in its axial direction.

[0101] Specifically, the axial limiting component includes a limiting step 1341 and a mating step (not shown in the figure) used in cooperation. The limiting step 1341 is formed on the outer wall of the body 134. Among them, the outer wall of the body 134 forms a first surface 134a and a second surface 134b. The distance from the first surface 134a to the central axis of the body 134 is greater than the distance from the second surface 134b to the central axis of the body 134. That is, the limiting step 1341 is formed at the connection position of the first surface 134a and the second surface 134b.

[0102] The mating step is formed in the mounting hole 111. Among them, the mounting hole 111 can be designed as a stepped hole, and the stepped hole is used to form the mating step. There is a step surface in the stepped hole that coincides with the step surface on the outer wall of the body 134, so as to effectively limit the radial position of the fixing component 130 on the pipeline disc 110 when the fixing component 130 is installed.

[0103] As Figures 1 to 7 shown, in some embodiments, the electric spindle structure 100 further includes a second locking component 160, and the second locking component 160 includes a second set screw.

[0104] A second set screw hole 112 is further provided on the pipeline disc 110, and the second set screw hole 112 is provided on the top surface of the pipeline disc 110. Among them, when the fixing component 130 is installed and adjusted in place, the second set screw is installed in the second set screw hole 112 to lock the fixing component 130. Specifically, the body 134 is fixed in the mounting hole 111 by using the second set screw, so as to effectively prevent the body 134 from generating radial displacement during the subsequent operation of the electric spindle structure 100. If the body 134 is not locked, under the action of various forces such as vibration and rotation during the operation of the electric spindle structure 100, the position of the body 134 may change, thus affecting the accuracy of subsequent tool state detection and the normal operation of the entire electric spindle structure 100. Through the locking of the second set screw, the position of the body 134 in the mounting hole 111 is ensured to be fixed, thereby improving the stability and reliability of the electric spindle structure 100 during use.

[0105] As Figures 1 to 7 shown, in some embodiments, the electric spindle structure 100 further includes an oil cylinder device, and this oil cylinder device includes an oil cylinder fixed seat 171 and an oil cylinder assembly 172. Among them, the oil cylinder fixed seat 171 is provided on the top surfaces of the pipeline disc 110 and the tool puller ring 120.

[0106] The oil cylinder assembly 172 is accommodated in the oil cylinder fixing seat 171, and the oil cylinder assembly 172 is sleeved on the induction disc 129.

[0107] A third set screw hole 1711 is provided on the oil cylinder fixing seat 171 and is oppositely arranged with the second set screw hole 112, and a third set screw 173 is arranged in the third set screw hole 1711. Among them, the aperture of the third set screw hole 1711 is greater than or equal to the aperture of the second set screw hole 112, so that after the electric spindle structure 100 is assembled, the axial position of the fixing component 130 and the detection unit 140 can be adjusted without disassembling the oil cylinder assembly 172.

[0108] After the fixing component 130 is installed in place, the third set screw 173 is arranged at an interval from the second set screw, and the top surface of the third set screw 173 is flush with the top surface of the third set screw hole 1711; or, the top surface of the third set screw 173 is slightly lower than the top surface of the third set screw hole 1711 to prevent impurities from accumulating in the third set screw hole 1711.

[0109] As Figures 1 to 7 shown, in some embodiments, an avoidance hole 121 is provided on the broach ring 120 and is oppositely arranged with the mounting hole 111.

[0110] Among them, since the electric spindle structure 100 has a floating tool change function, the oil cylinder assembly 172 and the broach ring 120 will move axially during the tool change process of the electric spindle structure 100. To avoid the fixing component 130 passing through the broach ring 120, the avoidance hole 121 is designed as an elliptical structure with a long axis and a short axis to avoid or leave a clearance for the detection end of the detection unit 140. Among them, the short axis dimension of the avoidance hole 121 is greater than the aperture dimension of the mounting hole 111, and the long axis dimension of the avoidance hole 121 is greater than the axial movement dimension of the broach ring 120 in the installation space.

[0111] As Figures 1 to 7 shown, in some embodiments, the number of the mounting holes 111, the avoidance holes 121, and the detection units 140 is three. The three detection units 140 respectively correspond to the broaching state, the tool change state, and the no-tool state of the tool in the induction disc 129.

[0112] Among them, along the height direction of the pipeline disc 110, the mounting hole 111 includes a first mounting hole 1111, a second mounting hole 1112, and a third mounting hole 1113, and the avoidance hole 121 includes a first avoidance hole 1211, a second avoidance hole 1212, and a third avoidance hole 1213 that respectively correspond to the first mounting hole 1111, the second mounting hole 1112, and the third mounting hole 1113 one by one.

[0113] Among them, the height of the center of the first mounting hole 1111 is higher than the height of the center of the second mounting hole 1112, and the height of the center of the first mounting hole 1111 is lower than the height of the center of the third mounting hole 1113.

[0114] The first avoidance hole 1211 corresponds to the broaching state of the tool, the second avoidance hole 1211 corresponds to the tool breakage state, and the third avoidance hole 1213 corresponds to the tool-less state.

[0115] As Figures 1 to 7 shown, in some embodiments, the detection unit 140 includes a proximity switch. The electric spindle structure 100 further includes a protective cover 180. The protective cover 180 is fastened to the pipeline disc 110 and is used to protect the proximity switch and the data line connected to the proximity switch, so as to ensure the protection coefficient of the proximity switch during use and improve its service life.

[0116] Among them, a wire harness cavity 181 is provided on the protective cover 180 to collect the data lines of the three proximity switches by using the wire harness cavity 181 and then lead them out from the wire outlet hole 182.

[0117] As Figures 1 to 7 shown, in some embodiments, a loosening prevention component 190 is provided on the pipeline disc 110.

[0118] The loosening prevention component 190 includes a loosening prevention hole 191, a loosening prevention part 192 and a loosening prevention ring 193. The loosening prevention hole 191 is provided on one side of the mounting hole 111. The loosening prevention part 192 is passed through the loosening prevention ring 193 and fastened in the loosening prevention hole 191. The loosening prevention ring 193 is used to prevent loosening and back-off of the detection unit 140 arranged in the mounting hole 111. Among them, the loosening prevention part 192 may include, but is not limited to, a fastening bolt or an adjusting rod. The loosening prevention ring 193 may include, but is not limited to, a gasket, etc.

[0119] In this example, through the structural design of the loosening prevention component 190 cooperating with the above various setscrews, a structure that is convenient for adjusting the axial position and radial position of the proximity switch is formed, improving the adjustment efficiency of the proximity switch. At the same time, it can also effectively ensure and improve the stability of the proximity switch and the main body 134 during operation, thereby greatly enhancing the user experience during the use of the electric spindle structure 100.

[0120] The serial numbers in the embodiments of the present application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0121] In the above embodiments of the present application, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0122] In several embodiments provided by the present application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are merely illustrative. For example, the division of the units can be a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces. The indirect coupling or communication connection of units or modules can be in an electrical or other form.

[0123] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0124] The above is only the preferred embodiment of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. An electric spindle structure, characterized in that, Comprising: A pipeline tray with an installation space inside, and installation holes communicating with the installation space are arranged on the pipeline tray; A broach ring is axially movably arranged in the installation space, and an induction disc is arranged inside the broach ring; A fixing component is installed in the installation hole. The fixing component has a first hole section and a second hole section with a common central axis. One end of the first hole section communicates with the installation space, the other end communicates with one end of the second hole section, the other end of the second hole section communicates with the external area of the pipeline tray, and the inner diameter of the first hole section is smaller than that of the second hole section; A detection unit is used to detect the state of the induction disc. The detection unit is adaptively installed with the first hole section. By adjusting the axial position of the detection unit in the first hole section, the radial position of the detection unit in the installation space can be adjusted, and the radial position of the detection unit can be observed through the gap between the second hole section and the detection unit.

2. The electric spindle structure according to claim 1, characterized in that A position detection piece is arranged on the outer wall of the end of the detection unit far from the installation space. The position detection piece has a first state indicating that the radial position adjustment of the detection unit is in place and a second state indicating that the adjustment is not in place.

3. The electric spindle structure according to claim 2, wherein The first hole section is a threaded hole section, and the second hole section is a through hole section; An external connection threaded section is arranged on the outer side wall of the detection unit, and the position detection piece is arranged on the detection unit on the side of the external connection threaded section and far from the installation space; The external connection threaded section of the detection unit is threadedly connected with the first hole section. By adjusting the position of the threaded connection, the radial position of the detection unit in the installation space can be adjusted.

4. The electric spindle structure according to claim 3, wherein Comprising a first locking component. The first locking component includes a first set screw. The fixing component has a first set screw hole arranged radially, and the first set screw hole communicates with the installation hole; After the radial position of the detection unit in the installation space is installed in place, the first set screw locks the detection unit through the first set screw hole.

5. The electric spindle structure according to claim 1, wherein, The fixing component includes a body with a central axis. The central axes of the first hole section and the second hole section are not coaxial with the central axis of the body. By rotating and adjusting the position of the fixing component in the installation hole, the axial position of the detection unit in the installation space is adjusted.

6. The electric spindle structure according to claim 5, characterized in that, The fixing component includes an eccentric mounting piece. An eccentric mounting hole is arranged on the body on one side of the first hole section. The eccentric mounting hole is used for being adaptively connected with the eccentric mounting piece to adjust the axial position of the detection unit in the installation space through the eccentric mounting piece.

7. The electric spindle structure according to claim 6, characterized in that, The distance between the central axis of the eccentric mounting hole and the central axis of the body is a first distance, and the distance between the central axes of the first hole section and the second hole section and the central axis of the body is a second distance; Wherein, the second distance is smaller than the first distance.

8. The electric spindle structure according to claim 5, characterized in that, An axial limiting component is formed between the outer side wall of the body and the installation hole. The axial limiting component is used to limit the installation position of the body in its axial direction.

9. The electric spindle structure according to claim 8, characterized in that, The axial limiting component includes a limiting step and a matching step used in cooperation; The limiting step is formed on the outer side wall of the body; The mating step is formed in the mounting hole.

10. The electric spindle structure according to claim 5, characterized in that, It includes a second locking assembly, and the second locking assembly includes a second setscrew; A second setscrew hole is provided on the pipeline disc. After the fixing assembly is installed and adjusted in place, the second setscrew is installed in the second setscrew hole to lock the fixing assembly.

11. The electric spindle structure according to claim 10, characterized in that, It further includes an oil cylinder device, and the oil cylinder device includes an oil cylinder fixing seat and an oil cylinder assembly; The oil cylinder fixing seat is arranged on the top surfaces of the pipeline disc and the broach ring; The oil cylinder assembly is accommodated in the oil cylinder fixing seat, and the oil cylinder assembly is sleeved on the induction disc; A third setscrew hole is provided on the oil cylinder fixing seat and is arranged opposite to the second setscrew hole. A third setscrew is arranged in the third setscrew hole, and the third setscrew is arranged at an interval from the second setscrew; Wherein, the top surface of the third setscrew is flush with the top surface of the third setscrew hole; or, the top surface of the third setscrew is lower than the top surface of the third setscrew hole.

12. The electric spindle structure according to claim 1, characterized in that, An avoidance hole is provided on the broach ring and is arranged opposite to the mounting hole; The avoidance hole is an elliptical structure with a major axis and a minor axis, and the dimension of the minor axis of the avoidance hole is larger than the aperture dimension of the mounting hole; Moreover, the dimension of the major axis of the avoidance hole is larger than the axial movement dimension of the broach ring in the installation space.

13. The electric spindle structure according to claim 12, characterized in that, The number of the mounting holes, the avoidance holes, and the detection units is three; The three detection units respectively correspond to the broaching state, the tool clamping state, and the no-tool state of the tool in the induction disc.

14. The electric spindle structure according to claim 1, characterized in that, The detection unit includes a proximity switch; The electric spindle structure further includes a protective cover; The protective cover is buckled on the pipeline disc and is used for protecting the proximity switch and the data cable connected to the proximity switch.

15. The electric spindle structure according to any one of claims 1 to 14, characterized in that, A loosening prevention assembly is provided on the pipeline disc; The loosening prevention assembly includes a loosening prevention hole, a loosening prevention piece, and a loosening prevention ring. The loosening prevention hole is arranged on one side of the mounting hole. The loosening prevention piece is passed through the loosening prevention ring and fastened in the loosening prevention hole. The loosening prevention ring is used for preventing loosening and backstepping of the detection unit arranged in the mounting hole.

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