Screw tap clamping device and grinding machine equipment with same

Abstract

The utility model discloses a screw tap clamping device and grinding machine equipment with the screw tap clamping device, the screw tap clamping device comprises a rotary positioning mechanism and an auxiliary positioning mechanism, and the rotary positioning mechanism is used for positioning the first end of a workpiece and driving the workpiece to rotate; the auxiliary positioning mechanism comprises a positioning piece and a mounting piece, a clamping position used for clamping a workpiece is formed between the positioning piece and the rotary positioning mechanism, the positioning piece is used for positioning a second end, opposite to the first end, of the workpiece, one end of the mounting piece is connected with the positioning piece, and an avoiding groove is formed in the other end of the mounting piece and used for avoiding the workpiece when the slotting grinding tool machines a threaded groove in the workpiece. The outer circle machining grinding tool and the slotting grinding tool are coaxially arranged. The screw tap clamping device can be used in cooperation with double grinding tools which are coaxially arranged, the two ends of a workpiece can be positioned, the machining efficiency is improved, and the machining precision is also improved.

Description

Technical Field

[0001] The present application relates to the technical field of tap processing, and in particular to a tap clamping device and a grinding machine having the same. Background Art

[0002] In the related art, in the process of processing a workpiece into a tap, it is often necessary to use two grinding wheels to process the workpiece in sequence. First, a slotted grinding wheel is used to process the workpiece into a semi-finished product with an external thread. Then, the slotted grinding wheel is replaced with an external cylindrical grinding wheel, and then the external cylindrical grinding wheel is used to perform external cylindrical processing on the external thread of the semi-finished product.

[0003] However, in batch production, frequent replacement of clamping grinding wheels not only affects efficiency but also processing accuracy. Therefore, a grinding device that allows the slotting grinding wheel and the outer cylindrical grinding wheel to be coaxially installed has appeared on the market. In order to avoid interference between the outer cylindrical grinding wheel and the tap clamping device used to clamp the workpiece during slotting grinding wheel processing, the existing tap clamping device only clamps one end of the workpiece to drive the workpiece to rotate, and does not position the other end of the workpiece, so that when the slotting grinding wheel is processed, the outer cylindrical grinding wheel is located on one side of the other end of the workpiece, avoiding interference. However, this will cause obvious jitter of the workpiece during processing, which will greatly affect the processing accuracy of the workpiece. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a tap clamping device and a grinding machine device, wherein the tap clamping device can be used in conjunction with a coaxially arranged double grinding tool and can position both ends of a workpiece, thereby improving not only the processing efficiency but also the processing accuracy.

[0005] The utility model also provides a grinding machine device with the tap clamping device.

[0006] According to the first aspect of the present invention, the tap clamping device includes: a rotary positioning mechanism and an auxiliary positioning mechanism, the rotary positioning mechanism is used to position the first end of the workpiece and drive the workpiece to rotate; the auxiliary positioning mechanism includes a positioning member and a mounting member, a clamping position for clamping the workpiece is formed between the positioning member and the rotary positioning mechanism, and is used to position the second end of the workpiece opposite to the first end, one end of the mounting member is connected to the positioning member, and an avoidance groove is provided on the other end, the avoidance groove is used to accommodate an external cylindrical machining mold coaxially arranged with the slotting mold when the slotting mold processes a thread groove on the workpiece.

[0007] The tap clamping device according to the embodiment of the utility model has at least the following beneficial effects: the tap clamping device includes a rotary positioning mechanism and an auxiliary positioning mechanism, the positioning member in the auxiliary positioning mechanism and the rotary positioning mechanism are arranged relative to each other, and a clamping position is formed between them; when in use, the rotary positioning mechanism positions the first end of the workpiece and can drive the workpiece to rotate, and the positioning member of the auxiliary positioning mechanism positions the second end of the workpiece, so that the workpiece is located in the clamping position, and the two ends of the workpiece are positioned, thereby greatly reducing the jumping of the workpiece during the processing; in addition, the mounting member connected to the positioning member is provided with an avoidance groove, because the tap clamping device The device can be applied to a grinding machine with a double grinder, and the double grinder can include a coaxially arranged slotting grinder and an external cylindrical machining grinder, the slotting grinder is used to open an external thread groove on the workpiece, and the external cylindrical machining grinder is used to perform external cylindrical machining on the external thread of the workpiece. When the slotting grinder processes the workpiece, part of the external cylindrical machining grinder can be accommodated in the avoidance groove, thereby avoiding interference between the external cylindrical machining grinder and the auxiliary positioning mechanism, thereby ensuring the machining of the coaxially arranged double grinder; therefore, the tap clamping device of the present application can be used in conjunction with the coaxially arranged double grinder, and can position both ends of the workpiece, which not only improves the machining efficiency, but also improves the machining accuracy.

[0008] According to some embodiments of the present invention, the positioning member is a first pinnacle, and the first pinnacle is detachably connected to a side of the mounting member facing the rotation positioning mechanism.

[0009] According to some embodiments of the present invention, the auxiliary positioning mechanism further includes an adjustment component, which is connected to the mounting member and is used to adjust the coaxiality between the first center and the rotation axis of the rotation positioning mechanism.

[0010] According to some embodiments of the utility model, the adjustment assembly includes a first adjustment member, a second adjustment member, a base, a first connecting member and a second connecting member, the mounting member is arranged on the first adjustment member, the first connecting member connects the first adjustment member and the second adjustment member and is used to adjust the relative position of the first adjustment member and the second adjustment member in a first direction, the second connecting member connects the second adjustment member and the base and is used to adjust the relative position of the second adjustment member and the base in a second direction, and the first direction, the second direction and the rotation axis of the rotation positioning mechanism are perpendicular to each other.

[0011] According to some embodiments of the utility model, the mounting member is provided with a mounting hole, the first tip is installed in the mounting hole, an arc-shaped portion is provided at one end of the mounting member away from the positioning member, the adjustment component is correspondingly provided with an arc-shaped groove, the arc-shaped portion is embedded in the arc-shaped groove, and the arc surface of the arc-shaped portion is coaxially arranged with the mounting hole.

[0012] According to some embodiments of the utility model, the rotational positioning mechanism includes a second center and a rotating assembly, the second center is coaxially connected to the rotating assembly and is used to abut the first end of the positioning workpiece, and the clamping position is formed between the positioning member and the second center; the rotating assembly abuts against the circumferential surface of the workpiece to drive the workpiece to rotate.

[0013] According to some embodiments of the utility model, the rotating assembly includes a turntable and a rotating jaw, the rotating jaw and the second center are both connected to the turntable, and the rotating jaw can drive the workpiece to rotate synchronously with the second center under the drive of the turntable.

[0014] According to some embodiments of the utility model, at least two rotating jaws are provided, and an accommodating position for the workpiece to pass through is formed between the rotating jaws. The degree of convergence between the rotating jaws is adjustable to adjust the size of the accommodating position to adapt to workpieces with different handle sizes.

[0015] According to the second aspect of the present invention, the grinding machine equipment comprises a grinding device and a tap clamping device of the first aspect of the present invention, wherein the grinding device comprises a coaxially arranged slotting grinder and an external cylindrical machining grinder, and the slotting grinder and the external cylindrical machining grinder are arranged on one side of the tap clamping device.

[0016] The grinding machine equipment according to the embodiment of the utility model has at least the following beneficial effects: the grinding machine equipment includes a grinding device and the tap clamping device in the embodiment of the first aspect, the grinding device is located on one side of the tap clamping device, and includes a coaxially arranged slotting grinder and an external cylindrical machining grinder, so that the slotting processing and external cylindrical machining of the workpiece can be realized in sequence without frequently replacing the grinder clamped in the grinding device, thereby improving the processing efficiency, and the positioning of the two ends of the workpiece by the tap clamping device improves the processing quality.

[0017] According to some embodiments of the utility model, the grinding device includes a locking assembly and a first spacer sleeve. The first spacer sleeve is arranged between the slotting mold and the external cylindrical machining mold and is used to adjust the distance between the slotting mold and the external cylindrical machining mold. The locking assembly is used to lock the slotting mold and the external cylindrical machining mold.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 It is a schematic diagram of the overall structure of one embodiment of the grinding machine device according to the second aspect of the utility model;

[0021] Figure 2 A side view of one embodiment of the tap clamping device according to the first aspect of the utility model;

[0022] Figure 3 for Figure 2 A top view of one embodiment of a tap holding device shown in ;

[0023] Figure 4 for Figure 1 A schematic diagram of the structure of the double grinding tool, workpiece, rotating assembly and auxiliary positioning mechanism in the grinding machine equipment shown in FIG.

[0024] Figure 5 for Figure 2 A schematic diagram of the structure of a workpiece, a rotating assembly and an auxiliary positioning mechanism in a tap clamping device shown in ;

[0025] Figure 6 for Figure 2 A cross-sectional view of a first center and a mounting member in the tap holding device shown in ;

[0026] Figure 7 for Figure 2 A partial enlarged view of the middle A;

[0027] Figure 8 for Figure 2 A schematic structural diagram of a first adjusting member in a tap clamping device shown in ;

[0028] Fig. 9 for Figure 2 A schematic structural diagram of a second adjusting member in a tap clamping device shown in ;

[0029] Fig.10 for Figure 2 A schematic diagram of the structure of a workpiece, a rotating assembly, a second center and an auxiliary positioning mechanism in a tap clamping device shown in ;

[0030] Fig.11 for Figure 1 A cross-sectional view of a grinding device in a grinding machine apparatus is shown in FIG.

[0031] Reference numerals:

[0032] Rotational positioning mechanism 100; second center 110; rotating clamp 120; first rotational drive assembly 130; turntable 140; auxiliary positioning mechanism 200; first center 210; mounting member 220; avoidance groove 221; mounting hole 222; arc portion 223; through hole 224; adjustment assembly 230; first adjustment member 231; arc groove 2311; strip groove 2312; second threaded hole 2313; third threaded hole 2314; second adjustment member 232; first threaded hole 2321; waist-shaped hole 2322; translational drive mechanism 300; grinding device 400; double grinder 410; slotted grinder 411; external cylindrical machining grinder 412; second rotational drive assembly 420; first flange 431; first spacer 432; second spacer 433; second flange 434; workpiece 500. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0034] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0037] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0038] Reference below Figures 1 to 11 The invention discloses a tap clamping device and a grinding machine having the same according to an embodiment of the invention.

[0039] like Figures 2 to 10 As shown, the tap clamping device according to the embodiment of the first aspect of the utility model includes: a rotary positioning mechanism 100 and an auxiliary positioning mechanism 200, the rotary positioning mechanism 100 is used to position the first end of the workpiece 500 and drive the workpiece 500 to rotate; the auxiliary positioning mechanism 200 includes a positioning member and a mounting member 220, a clamping position for clamping the workpiece 500 is formed between the positioning member and the rotary positioning mechanism 100, and is used to position the second end of the workpiece 500 opposite to the first end, one end of the mounting member 220 is connected to the positioning member, and the other end is provided with an avoidance groove 221, the avoidance groove 221 is used to accommodate the outer cylindrical machining mold 412 coaxially arranged with the slotting mold 411 when the slotting mold 411 processes the thread groove on the workpiece 500.

[0040] It can be understood that this tap clamping device includes a rotary positioning mechanism 100 and an auxiliary positioning mechanism 200, the positioning member in the auxiliary positioning mechanism 200 and the rotary positioning mechanism 100 are arranged relative to each other, and a clamping position is formed between them; when in use, the rotary positioning mechanism 100 positions the first end of the workpiece 500 and can drive the workpiece 500 to rotate, and the positioning member of the auxiliary positioning mechanism 200 positions the second end of the workpiece 500, so that the workpiece 500 is located in the clamping position, and the two ends of the workpiece 500 are positioned, thereby greatly reducing the jumping of the workpiece 500 during the processing; in addition, the mounting member 220 connected to the positioning member is provided with an avoidance groove 221, because this tap clamping device can be applied to a grinding machine with a double grinder. In the embodiment, the double grinder may include a coaxially arranged slotting grinder 411 and an external cylindrical machining grinder 412. The slotting grinder 411 is used to open an external thread groove on the workpiece 500, and the external cylindrical machining grinder 412 is used to perform external cylindrical machining on the external thread of the workpiece 500. When the slotting grinder 411 processes the workpiece 500, part of the external cylindrical machining grinder 412 can be accommodated in the avoidance groove 221, thereby avoiding interference between the external cylindrical machining grinder 412 and the auxiliary positioning mechanism 200, ensuring the machining of the coaxially arranged double grinders, and avoiding frequent clamping of the grinders to affect the machining efficiency; therefore, the tap clamping device of the present application can be used in conjunction with the coaxially arranged double grinders, and can position both ends of the workpiece 500, which not only improves the machining efficiency, but also improves the machining accuracy.

[0041] It should be understood that the slotting abrasive tool 411 and the external cylindrical machining abrasive tool 412 can be the shape of a grinding wheel or the shape of a grinding head. In short, on a plane perpendicular to the axis of the workpiece 500, the external cylindrical machining abrasive tool 412 is closer to the workpiece 500 than the slotting abrasive tool 411. During machining, the slotting die first opens an external thread groove on the circumference of the workpiece 500, at which time the external cylindrical machining abrasive tool 412 can avoid the avoidance groove 221 of the mounting part 220, and then the external cylindrical machining abrasive tool 412 performs external cylindrical machining on the external thread on the workpiece 500. At this time, since the slotting abrasive tool 411 is farther away from the workpiece 500 than the external cylindrical machining abrasive tool 412, it will not interfere with the workpiece 500.

[0042] It should be understood that the positioning member and the mounting member 220 may be two separate components, or may be two parts of a component that are integrally formed.

[0043] It should be understood that this tap clamping device also includes a translation drive mechanism 300, and the output end of the translation drive mechanism 300 is connected to the rotation positioning mechanism 100, and can also be connected to the auxiliary positioning mechanism 200. In short, it can drive the rotation positioning mechanism 100 or the auxiliary positioning mechanism 200 to translate, so as to adjust the distance between the rotation positioning mechanism 100 and the auxiliary positioning mechanism 200, thereby achieving clamping or loosening of the workpiece 500.

[0044] It can be understood that the positioning member is a first apex 210, and the first apex 210 is detachably connected to a side of the mounting member 220 facing the rotation positioning mechanism 100. Figures 4 to 5 As shown, in this embodiment, by making the first apex 210 detachably connected to the mounting member 220 , the first apex 210 that is worn out due to long-term use can be quickly replaced, and the replacement cost is saved.

[0045] It should be understood that, in addition to the above-mentioned embodiment in which the positioning member is configured as a top structure, in other embodiments, the positioning member may also be configured as other components having a structure that matches the second end of the workpiece 500. For example, when the second end of the workpiece 500 is tapered, the positioning member only needs to be provided with a tapered groove that matches the second end.

[0046] It is understandable that the auxiliary positioning mechanism 200 further includes an adjustment component 230, which is connected to the mounting member 220 and is used to adjust the coaxiality between the first center 210 and the rotation axis of the rotation positioning mechanism 100. Figures 4 to 10 As shown, in this embodiment, the auxiliary positioning mechanism 200 also includes an adjustment component 230, which is used to adjust the coaxiality of the rotation axis of the first center 210 and the rotation positioning mechanism 100, so that the rotation positioning mechanism 100 and the first center 210 can achieve alignment positioning of both ends of the workpiece 500.

[0047] It is understandable that if Figure 5 As shown, the adjustment assembly 230 includes a first adjustment member 231, a second adjustment member 232, a base, a first connecting member and a second connecting member. The mounting member 220 is disposed on the first adjustment member 231. The first connecting member connects the first adjustment member 231 and the second adjustment member 232 and is used to adjust the relative position of the first adjustment member 231 and the second adjustment member 232 in a first direction. The second connecting member connects the second adjustment member 232 and the base and is used to adjust the relative position of the second adjustment member 232 and the base in a second direction. The first direction, the second direction and the rotation axis of the rotation positioning mechanism 100 are perpendicular to each other. For example, Figures 5 to 9As shown, in this embodiment, the adjustment component 230 includes a first adjustment member 231, a second adjustment member 232, a base, a first connecting member and a second connecting member. The first top 210 is arranged on the first adjustment member 231 through the mounting member 220, and the second adjustment member 232 is arranged on the base. The first connecting member connects the first adjusting member 231 and the second adjusting member 232, and can adjust the position of the first adjusting member 231 relative to the second adjusting member 232 in the first direction, and can also adjust the position of the first top 210 relative to the rotation positioning mechanism 100 in the first direction. The second connecting member connects the second adjusting member 232 and the base, and can adjust the position of the second adjusting member 232 relative to the base in the second direction, and can also adjust the position of the first top 210 relative to the rotation positioning mechanism 100 in the second direction. The first direction, the second direction and the rotation axis of the rotation positioning mechanism 100 are perpendicular to each other, that is, the coaxiality of the first top 210 and the rotation positioning mechanism 100 is adjusted by the adjustment component 230.

[0048] In this way, before processing, the rotation positioning mechanism 100 and the first center 210 are adjusted to be coaxial, and then the workpiece 500 is moved to the clamping position. Through the drive of the translation drive mechanism 300, the rotation positioning mechanism 100 and the auxiliary positioning mechanism 200 can realize the positioning of the workpiece 500 and drive the workpiece 500 to rotate, and then the workpiece 500 is processed through the mold.

[0049] Specifically, in this embodiment, Figure 8 and 9 As shown, the first adjusting member 231 is provided with a strip groove 2312, and the second adjusting member 232 is provided with a first threaded hole 2321 adapted to the first connecting member, so that the first connecting member can be threadedly connected to the second adjusting member 232 after passing through the strip groove 2312, and the position of the first adjusting member 231 relative to the second adjusting member 232 in the first direction is achieved by changing the position of the first connecting member in the strip groove 2312; the second adjusting member 232 is also provided with a waist-shaped hole 2322, and the base is provided with a fourth threaded hole adapted to the second connecting member, so that the second connecting member can be threadedly connected to the base after passing through the waist-shaped hole 2322, and the position of the second connecting member relative to the waist-shaped hole 2322 is changed to adjust the position of the second adjusting member 232 relative to the base in the second direction.

[0050] It should be understood that the adjustment assembly 230 also includes a third connecting member, and the first adjusting member 231 is also provided with a third threaded hole 2314 adapted to the third connecting member, and the third threaded hole 2314 is arranged through the first adjusting member 231. When the first adjusting member 231 and the second adjusting member 232 are connected together, the third connecting member can be threadedly connected to the third threaded hole 2314 and abut against the second adjusting member 232, thereby also realizing the locking of the first adjusting member 231 and the second adjusting member 232. And by rotating the first adjusting member 231 relative to the second adjusting member 232, the coaxiality between the first top 210 and the rotation axis of the rotation positioning mechanism 100 is adjusted, and the locking of the first adjusting member 231 and the second adjusting member 232 is realized through the third connecting member.

[0051] It should be understood that, in addition to the above-mentioned method of manually adjusting the adjustment component 230 to achieve the coaxiality adjustment between the first center 210 and the rotation axis of the rotation positioning mechanism 100, in some other embodiments, the coaxiality adjustment can also be achieved by automatic positioning. For example, by using the alignment platform and other mechanisms in the prior art, and then with the assistance of the visual positioning mechanism to achieve the coaxiality adjustment, the automatic adjustment of the coaxiality is achieved.

[0052] It is understandable that if Figure 5 and 6 As shown, the mounting member 220 is provided with a mounting hole 222, the first tip 210 is installed in the mounting hole 222, the mounting member 220 is provided with an arc portion 223 at one end away from the positioning member, the adjustment component 230 is correspondingly provided with an arc groove 2311, the arc portion 223 is embedded in the arc groove 2311, and the arc surface of the arc portion 223 is coaxially arranged with the mounting hole 222. For example, Figures 5 to 8 As shown, in the present embodiment, the first pin 210 is mounted on the mounting member 220 through the mounting hole 222, and the mounting member 220 is provided with an arc portion 223 which is embedded in the arc groove 2311 provided in the adjusting assembly 230. The shape of the arc portion 223 can not only meet the positioning requirements of the mounting member 220 and the adjusting assembly 230, but also facilitate processing; in addition, the arc surface of the arc portion 223 is coaxial with the mounting hole 222, thereby facilitating the processing of the mounting hole 222 for mounting the first pin 210.

[0053] It should be understood that if Figure 6 and 8 As shown, the adjustment assembly 230 also includes a fourth connection member, the first adjustment member 231 is provided with a second threaded hole 2313 adapted to the fourth connection member, and the mounting member 220 is provided with a through hole 224 corresponding to the second threaded hole 2313. Therefore, the fourth connection member can be threadedly connected to the first adjustment member 231 after passing through the through hole 224, thereby achieving the connection and fixation between the mounting member 220 and the first adjustment member 231.

[0054] It should be understood that, in addition to the present embodiment in which the mounting member 220 is provided with an arc-shaped portion 223 that is compatible with the first adjusting member 231, in some other embodiments, the mounting member 220 may also be provided with a square portion, and the first adjusting member 231 may be provided with a square groove that is compatible with the square portion, and the square portion is embedded in the square groove, thereby achieving positioning between the mounting member 220 and the first adjusting member 231.

[0055] Specifically, in this embodiment, the first apex 210 and the mounting hole 222 of the mounting member 220 are interference-fitted, thereby achieving the connection and fixation between the first apex 210 and the mounting member 220. In other embodiments, a locking member may be used to connect the first apex 210 and the mounting member 220, thereby achieving the locking and fixation between the first apex 210 and the mounting member 220.

[0056] It is understandable that if Figure 7 As shown, the rotary positioning mechanism 100 includes a second center 110 and a rotary assembly. The second center 110 is coaxially connected to the rotary assembly and is used to abut against the first end of the workpiece 500 for positioning. The clamping position is formed between the positioning member and the second center 110. The rotary assembly abuts against the circumference of the workpiece 500 to drive the workpiece 500 to rotate. For example, Figure 7 , Fig.10 As shown, in this embodiment, the rotation positioning mechanism 100 includes a second center point 110 and a rotation component. The second center point 110 and the positioning member are opposite to each other and form a clamping position with each other. When in use, the first end and the second end of the product are first positioned respectively by the second center point 110 and the positioning member, and then the workpiece 500 is driven to rotate by the rotation component, so that the workpiece 500 is processed by the grinding tool.

[0057] It should be understood that the rotation positioning mechanism 100 includes a first rotation driving assembly 130 , the output end of the first rotation driving assembly 130 is connected to the rotation assembly, and drives the workpiece 500 to rotate by driving the rotation assembly.

[0058] It is understandable that the rotating assembly includes a rotating disk 140 and a rotating jaw 120, the rotating jaw and the second center 110 are both connected to the rotating disk 140, and the rotating jaw 120 can drive the workpiece 500 to rotate synchronously with the second center 110 under the drive of the rotating disk 140. Figure 7 , Fig.10 As shown, in this embodiment, the rotating component includes a turntable 140 and a rotating jaw 120. The rotating jaw 120 and the second center 110 are respectively connected to the turntable 140. After the turntable 140 rotates, it can drive the rotating jaw 120 to rotate, so that the rotating jaw 120 abuts against the handle of the workpiece 500 and pushes the handle of the workpiece 500 to rotate, thereby achieving the synchronization of the rotation of the workpiece 500 and the second center 110.

[0059] It should be understood that in this embodiment, the workpiece 500 is not positioned by the rotating jaws 120, but the second center 110 and the positioning member are used to first position the two ends of the workpiece 500, and then the rotating jaws 120 are rotated under the drive of the turntable 140, and the rotating jaws 120 contact the handle of the workpiece 500 and push the handle of the workpiece 500 to rotate. Since the coaxiality of the second center 110 and the positioning member is adjusted in advance, the workpiece 500 can be accurately positioned. It should be understood that in this embodiment, the handle of the workpiece 500 is rectangular, so the rotating jaws can push the handle of the workpiece 500 to rotate.

[0060] It should be understood that in some other embodiments, the first end of the workpiece 500 may be clamped or loosened by moving the rotating jaws 120 closer or farther from each other, and the workpiece 500 may be rotated by rotating the rotating jaws 120. However, this arrangement may result in a difference in displacement of the two rotating jaws 120, which may cause the first end of the workpiece 500 to be non-coaxial with the rotation axis of the rotating assembly after clamping, thereby affecting the machining accuracy.

[0061] It is understandable that at least two rotating jaws 120 are provided, and a receiving position for the workpiece 500 to pass through is formed between the rotating jaws, and the degree of convergence between the rotating jaws is adjustable to adjust the size of the receiving position to adapt to workpieces 500 with different handle sizes. Figure 5 , Figure 7 and Fig.10 As shown, in the present embodiment, at least two rotating jaws are provided, and a receiving position is formed between the plurality of rotating jaws, and the workpiece 500 is passed through the receiving position. Moreover, since the degree of convergence of the plurality of rotating jaws is adjustable, the size of the receiving position can be adjusted, thereby adapting to the workpiece 500 with different handle sizes.

[0062] Specifically, in this embodiment, the handle of the workpiece 500 is rectangular, and two rotating jaws are provided and arranged opposite to each other. The distance between the two rotating jaws is greater than the distance between the two opposite surfaces of the handle of the workpiece 500, and is less than the diagonal length of the cross section perpendicular to the axis of the handle, so that the handle of the workpiece 500 can be pushed to rotate under the drive of the turntable 140.

[0063] like Figure 1 and Fig.11 According to the second aspect of the present invention, the grinding machine equipment includes a grinding device 400 and the tap clamping device in the first aspect of the present invention. The grinding device 400 includes a coaxially arranged slotting grinder 411 and an external cylindrical machining grinder 412. The slotting grinder 411 and the external cylindrical machining grinder 412 are arranged on one side of the tap clamping device.

[0064] It can be understood that this grinding machine equipment includes a grinding device 400 and the tap clamping device in the first aspect embodiment, the grinding device 400 is located on one side of the tap clamping device, and includes a coaxially arranged slotting grinder 411 and an external cylindrical machining grinder 412, so that the slotting processing and external cylindrical machining of the workpiece 500 can be realized in sequence without frequently replacing the grinder clamped in the grinding device 400, thereby improving the processing efficiency, and the positioning of the two ends of the workpiece 500 by the tap clamping device improves the processing quality.

[0065] Specifically, the grinding device 400 includes a second rotary drive assembly 420 , and the rotation axis of the output end of the second rotary drive assembly 420 is coaxially arranged with the slotting grinding tool 411 and the outer cylindrical machining grinding tool 412 , thereby realizing rotational grinding of the slotting grinding tool 411 and the outer cylindrical machining grinding tool 412 .

[0066] It should be understood that the grinding device 400 also includes a feed drive assembly, the output end of which is connected to the grinding device 400 or the tap clamping device, and is used to drive the grinding device 400 and the tap clamping device to move closer or farther away, thereby achieving feed grinding of the workpiece 500.

[0067] It can be understood that the grinding device 400 includes a locking assembly and a first spacer 432. The first spacer 432 is disposed between the slotting tool 411 and the outer cylindrical machining tool 412 and is used to adjust the distance between the slotting tool 411 and the outer cylindrical machining tool 412. The locking assembly is used to lock the slotting tool 411 and the outer cylindrical machining tool 412. Fig.11 As shown, in this embodiment, the grinding device 400 also includes a locking assembly and a first spacer 432. The first spacer 432 is fixed between the slotting mold 411 and the external cylindrical machining mold 412, and the spacing between the slotting mold 411 and the external cylindrical machining mold 412 is adjusted by replacing the first spacer 432 of different sizes, so as to meet the processing requirements of the workpiece 500; in addition, the connection and fixation of the slotting mold 411 and the external cylindrical machining mold 412 are achieved by the locking assembly.

[0068] It should be understood that the grinding device 400 further includes a second spacer 433, the locking assembly includes a first flange 431 and a second flange 434, the first flange is connected and fixed to the output end of the second rotary drive assembly 420, the slotting abrasive tool 411 and the external cylindrical machining abrasive tool 412 are locked between the first flange and the second flange, and in addition, a second spacer 433 is provided at one end of the first flange and / or the second flange that contacts the abrasive tool, thereby reducing the wear between the abrasive tool and the locking assembly. One or more second spacers 433 may be provided.

[0069] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A tap clamping device, characterized in that: include: A rotary positioning mechanism, used for positioning a first end of a workpiece and driving the workpiece to rotate; The auxiliary positioning mechanism includes a positioning member and a mounting member. A clamping position for clamping the workpiece is formed between the positioning member and the rotation positioning mechanism, and is used to position the second end of the workpiece opposite to the first end. One end of the mounting member is connected to the positioning member, and the other end is provided with an avoidance groove. The avoidance groove is used to accommodate an external cylindrical machining mold coaxially arranged with the slotting mold when the slotting mold processes the thread groove on the workpiece.

2. The tap clamping device according to claim 1, characterized in that: The positioning member is a first tip, and the first tip is detachably connected to a side of the mounting member facing the rotation positioning mechanism.

3. The tap clamping device according to claim 2, characterized in that: The auxiliary positioning mechanism also includes an adjustment component, which is connected to the mounting member and is used to adjust the coaxiality between the first center and the rotation axis of the rotation positioning mechanism.

4. The tap clamping device according to claim 3, characterized in that: The adjustment assembly includes a first adjustment member, a second adjustment member, a base, a first connecting member and a second connecting member. The mounting member is arranged on the first adjustment member. The first connecting member connects the first adjustment member and the second adjustment member and is used to adjust the relative position of the first adjustment member and the second adjustment member in a first direction. The second connecting member connects the second adjustment member and the base and is used to adjust the relative position of the second adjustment member and the base in a second direction. The first direction, the second direction and the rotation axis of the rotation positioning mechanism are perpendicular to each other.

5. The tap clamping device according to claim 3, characterized in that: The mounting member is provided with a mounting hole, the first tip is installed in the mounting hole, an arc portion is provided at one end of the mounting member away from the positioning member, the adjustment component is correspondingly provided with an arc groove, the arc portion is embedded in the arc groove, and the arc surface of the arc portion is coaxially arranged with the mounting hole.

6. The tap clamping device according to claim 1, characterized in that: The rotational positioning mechanism includes a second center and a rotational assembly, wherein the second center is coaxially connected to the rotational assembly and is used to abut and position the first end of the workpiece, and the clamping position is formed between the positioning member and the second center; the rotational assembly abuts against the circumferential surface of the workpiece to drive the workpiece to rotate.

7. The tap clamping device according to claim 6, characterized in that: The rotating assembly includes a turntable and a rotating jaw. The rotating jaw and the second center are both connected to the turntable. The rotating jaw can drive the workpiece to rotate synchronously with the second center under the drive of the turntable.

8. The tap clamping device according to claim 7, characterized in that: At least two rotating jaws are provided, and an accommodating position for the workpiece to pass through is formed between the rotating jaws. The degree of convergence between the rotating jaws is adjustable to adjust the size of the accommodating position to adapt to the workpieces with different handle sizes.

9. A grinding machine, characterized in that: It comprises a grinding device and a tap clamping device as described in any one of claims 1 to 8, wherein the grinding device comprises the slotting grinder and the external cylindrical machining grinder which are coaxially arranged, and the slotting grinder and the external cylindrical machining grinder are arranged on one side of the tap clamping device.

10. The grinding machine according to claim 9, characterized in that: The grinding device includes a locking assembly and a first spacer sleeve, wherein the first spacer sleeve is arranged between the slotting grinder and the external cylindrical machining grinder and is used to adjust the distance between the slotting grinder and the external cylindrical machining grinder, and the locking assembly is used to lock the slotting grinder and the external cylindrical machining grinder.

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