WO2014063450A1 - 一种台虎钳 - Google Patents
一种台虎钳 Download PDFInfo
- Publication number
- WO2014063450A1 WO2014063450A1 PCT/CN2013/070648 CN2013070648W WO2014063450A1 WO 2014063450 A1 WO2014063450 A1 WO 2014063450A1 CN 2013070648 W CN2013070648 W CN 2013070648W WO 2014063450 A1 WO2014063450 A1 WO 2014063450A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- screw
- thread
- screw rod
- groove
- nut
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B1/00—Vices
- B25B1/06—Arrangements for positively actuating jaws
- B25B1/10—Arrangements for positively actuating jaws using screws
- B25B1/103—Arrangements for positively actuating jaws using screws with one screw perpendicular to the jaw faces, e.g. a differential or telescopic screw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B1/00—Vices
- B25B1/06—Arrangements for positively actuating jaws
- B25B1/10—Arrangements for positively actuating jaws using screws
- B25B1/12—Arrangements for positively actuating jaws using screws with provision for disengagement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B1/00—Vices
- B25B1/06—Arrangements for positively actuating jaws
- B25B1/10—Arrangements for positively actuating jaws using screws
- B25B1/12—Arrangements for positively actuating jaws using screws with provision for disengagement
- B25B1/125—Arrangements for positively actuating jaws using screws with provision for disengagement with one screw perpendicular to the jaw faces
Definitions
- the invention relates to a machining device, in particular to a bench vice. Background technique
- the vise is a clamp tool for the fitter for holding and fixing the workpiece.
- the existing ordinary bench vices are basically composed of five parts: a movable caliper body, a fixed caliper body, a screw rod, a thread nut and a chassis.
- the specific structure is as follows: A fixed caliper body is mounted on the chassis, and the fixed caliper body and the wire are fixed.
- the mother assembly is integrated, that is, the two parts have no relative movement.
- the movable caliper body is integrally assembled with the screw rod, and a handle is arranged at an outer end of the screw rod which is threadedly engaged with the nut mother; the movable caliper body extends transversely through the inner cavity of the upper portion of the fixed caliper body and is movable therein. If it is necessary to rotate the fixed caliper body on the chassis to change its machining position, it is also necessary to provide a screw on the chassis for locking the position of the fixed caliper body. In use, the screw rod meshed with the nut is rotated to cause relative displacement of the movable caliper body and the fixed caliper body for the purpose of clamping and releasing the workpiece.
- the rotating screw can only move the movable caliper for slow movement, so it can only achieve slow clamping and loosening of the workpiece.
- the rotating screw can only move the movable caliper for slow movement, so it can only achieve slow clamping and loosening of the workpiece.
- the bench vise with large jaw adjustment distance and frequent workpiece replacement in order to make the movable caliper body and the fixed caliper body have a large relative displacement, it is necessary to rotate the screw rod frequently and for a long time.
- the heavier work of the fitter becomes more awkward, which also increases labor intensity and reduces work efficiency.
- the structural principle of the existing quick-acting table vise is basically the separation of the screw and the nut, so as to achieve the purpose of rapid movement.
- the existing operating handle that is, the handle for engaging or separating the screw and the nut, is mostly installed at the base or the middle and rear of the fixed caliper body, during the operation of the fitter, the operator's arm
- the long travel time is very inconvenient.
- the technical problem to be solved by the present invention is to provide a bench vice that is more convenient for the operation of the fitter.
- a bench vice comprising a fixed caliper body, a movable caliper body, a screw rod, a thread nut, for engaging or disengaging the screw rod and the thread nut to achieve slow a moving or quick acting quick acting mechanism and an operating handle for operating the quick acting mechanism
- the movable caliper body is integrally assembled with the screw rod, and the quick acting mechanism and the operating handle are respectively provided At the front end of the fixed caliper body.
- the utility model has the beneficial effects that: the operation handle and the quick action mechanism are placed at the front end of the fixed caliper body, and the mechanical processing personnel does not need to move the arm for a long distance, which is convenient for operation; in addition, when the bench vise is manufactured, the quick action mechanism is placed It is also very convenient to fix the front end of the caliper body.
- the present invention can also be improved as follows:
- a front end of the fixed caliper body under the screw rod is provided with a silk mother groove
- the silk mother is placed in the silk mother groove
- the silk mother comprises an upper end a nut body and a lower end of the wire nut
- the upper end of the nut body has an arcuate groove extending along the extending direction of the screw rod
- the bottom of the arc groove is provided with a thread meshing with the screw rod
- the wire a first spring is sleeved on the outer wall of the female handle, and a first screw hole is communicated in the lower side of the wire mother groove
- a screw sleeve is screwed in the first screw hole
- the lower end of the first spring is fixed at
- the threaded sleeve is passed through a central hole of the threaded sleeve
- the lower surface of the threaded female handle is provided with an open slot
- the open slot is provided with a pin hole
- the beneficial effect of adopting the above further solution is that the operation of the handlebar drives the wire mother handle by the structure of the eccentric shaft, thereby realizing the engagement/separation of the screw rod and the silk nut, and the positioning device is also arranged on the eccentric shaft, and the whole system is connected and
- the drive is very stable and reliable, and has a long life.
- the snap mechanism is implemented such that a front end of the fixed caliper body on one side of the screw rod is provided with a thread mother groove, and the thread mother is placed in the silk mother groove, and the wire mother includes a nut body of the screw rod and a wire holder remote from the screw rod, wherein an end of the thread main body adjacent to the screw rod has an arc groove extending along a direction of the screw rod, and the bottom portion of the arc groove is provided with a threaded portion of the threaded rod, a first spring is sleeved on an outer wall of the threaded nut, and a first screw hole is further connected to an end of the thread groove away from the screw, the first screw a threaded sleeve is screwed into the hole, and one end of the first spring away from the screw rod is fixed by the threaded sleeve, and the thread is passed through a central hole of the threaded sleeve, and the thread is placed An end of the screw rod is hinged to
- the advantage of adopting the above further solution is that the operation of the handlebar to drive the wire mother handle is realized by operating the structure in which the handles are unequal in the two directions from the hinge point, thereby realizing the engagement/disengagement of the screw and the nut, the advantages thereof.
- the structure of the snap mechanism is very simple, but the connection and action are not as stable as the first embodiment.
- the quick-acting mechanism is realized that a front end of the fixed caliper body under the screw rod is provided with a silk mother groove, the silk mother is placed in the silk mother groove, and the silk mother comprises an upper end a nut body and a lower end of the wire nut, the upper end of the nut body has an arcuate groove extending along the extending direction of the screw rod, and the bottom of the arc groove is provided with a thread meshing with the screw rod, the wire a first spring is sleeved on the outer wall of the female handle, a screw hole is communicated in the lower side of the threaded mother groove, a threaded sleeve is screwed into the screw hole, and a lower end of the first spring is fixed to the threaded sleeve
- the thread is inserted through the central hole of the threaded sleeve, and the lower surface of the thread is provided with an upwardly extending second screw hole, and the second screw hole is provided with a second and second a screw that
- the advantage of adopting the above further solution is that the operating handle is placed on the track, and when the handle is operated, the operating handle is also in the high or low position on the track with the height of the track, thereby realizing the operation of the handle to drive the mother handle. , and thus achieve the screw Engagement/separation with the nut, this structure is simpler than the structure of the first embodiment, and the fixing and joining are superior to the second embodiment.
- the quick-acting mechanism is realized that a front end of the fixed caliper body under the screw rod is provided with a silk mother groove, the silk mother is placed in the silk mother groove, and the silk mother comprises an upper end a nut body and a lower end of the wire nut, the upper end of the nut body has an arcuate groove extending along the extending direction of the screw rod, and the bottom of the arc groove is provided with a thread meshing with the screw rod, the wire a first spring is sleeved on the outer wall of the female handle, and a first screw hole is communicated in the lower side of the wire mother groove, and a screw sleeve is screwed in the first screw hole, and the lower end of the first spring is fixed at The threaded sleeve is disposed through the central hole of the threaded sleeve, the lower surface of the threaded female handle is provided with an upwardly extending second screw hole, and the second screw hole is provided with a second hole a screw that meshe
- the advantage of adopting the above further solution is that the operation of the handlebar drives the wire mother handle by the principle of the lever, thereby realizing the engagement/separation of the screw and the nut, which has the advantage that it is a more compact embodiment. It is an implementation method, the structure is more simple, and the operation is more labor-saving.
- Embodiment 1 is a schematic overall view of Embodiment 1 of the present invention.
- Figure 2 is a cross-sectional view taken along line A-A of Figure 1;
- Figure 3 is a partial enlarged view of Figure 2;
- Figure 4 is a cross-sectional view taken along line B-B of Figure 3;
- Figure 5 is a cross-sectional view taken along line C-C of Figure 3;
- Figure 6 is a schematic view of the fast moving position of Embodiment 2 of the present invention.
- Figure 7 is a schematic view of the second embodiment of the present invention in a slow moving position
- Figure 8 is a schematic overall view of Embodiment 3 of the present invention.
- Figure 9 is a bottom view of Figure 8;
- Figure 10 is a side cross-sectional view of Figure 9;
- Figure 11 is a schematic view showing the slow motion position of Embodiment 4 of the present invention.
- Figure 12 is a schematic view of the quick-moving position of Embodiment 4 of the present invention.
- Fixed caliper body 101, fixed caliper body front end, 1 02, middle vise middle section, 103, bench vise tail, 2, movable caliper body, 3, screw rod, 4, silk mother, 401, silk mother body, 402, silk female handle, 403, open groove, 404, pin, 5, quick action mechanism, 6, operating handle, 7, wire mother groove, 8, circular groove, 9, first spring, 10, first Screw hole, 11, threaded sleeve;
- a bench vise includes a fixed caliper body 1, a movable caliper body 2, a screw rod 3, and a thread nut 4 for engaging or disengaging the screw rod 3 and the thread nut 4 to achieve slow motion or fast.
- the moving quick acting mechanism 5 and the operating handle 6 for operating the quick acting mechanism 5, the movable caliper body 2 and the screw rod 3 are integrally assembled, and the quick acting mechanism 5 and the operating handlebar 6 are both disposed at the front end 101 of the fixed caliper body.
- the slow or fast switching is generally achieved by the principle of engagement or disengagement of the screw and the nut, but there is a difference in the specific structure of the snap mechanism 5.
- the first invention of the present invention is to provide the snap mechanism 5 and the operating handle 6 at the front end 101 of the fixed caliper body, and to protect the snap mechanism and the operating handle at this position. In the area, it is convenient for personnel to operate and improve production efficiency.
- the fixed caliper inside the middle vise 102 is In the normal part that does not protrude forward, the positional area of the "fixed caliper front end 101" mentioned here can be clearly determined from the appearance, no matter what type of bench vise is clear and certain, because At the time of production, the front end 101 of the fixed caliper body is located at the bottom of the fixed caliper body, and only the bottom portion is protruded forward, reflecting the appearance, and the portion protruding from the bottom portion is a "fixed caliper body" as is well known to those skilled in the art.
- the front end then the portion protruding from the bottom of the vise and the other part of the vise body that is not protruding, that is, the middle section 102 of the vise must have a protrusion or not
- the boundary between the portions, the projecting portion of the fixed jaw is fixed to the front end boundary iron body distal referred to herein.
- the physical photos can clearly reflect this.
- the application documents are not attached with physical photos. The applicant can provide physical photos in the follow-up procedures at any time to show that the outstanding scope can be directly and unambiguously Clearly determined.
- the invention of the present invention is also to provide the following specific implementation manners, which have different operating structures, some have reasonable design, some have labor-saving operation, and can be realized.
- the object of the invention. Details are as follows:
- the snap action mechanism 5 is realized.
- the front end of the fixed caliper body under the screw rod 3 is provided with a thread mother groove 7, and the wire core 4 is placed in the wire mother groove 7, and the wire core 4 includes an upper end.
- the main body 401 of the main body and the lower end of the main body 402, the upper end of the main body of the main body 4 has a circle extending along the extending direction of the screw rod 3.
- the arc groove 8 is provided with a thread meshing with the screw rod 3.
- the first spring 9 is sleeved on the outer wall of the thread nut 402, and the first screw is connected to the bottom of the wire mother groove 7.
- a hole 10 a threaded sleeve 1 1 is screwed into the first screw hole 10, a lower end of the first spring 9 is fixed on the threaded sleeve 11, and a thread insert 402 is passed through the center hole of the threaded sleeve 11, and the lower end of the threaded sleeve 402
- the surface is provided with an opening groove 403.
- the opening groove 403 is provided with a pin hole.
- the upper end of a connecting plate 201 is inserted into the opening groove 403 and fixed by a pin 404 passing through the pin hole.
- the lower end of the connecting plate is provided.
- a slot 202, the slot 202 is provided with an eccentric shaft 203, and the eccentric shaft 203 is connected with the operating handle 6.
- the eccentric shaft 203 and the operating handle 6 are integrally formed or integrally formed;
- the side surface of the eccentric shaft 203 is circumferentially opened with an annular V-shaped groove 204.
- the V-shaped groove 204 is provided with a pair of splayed blind holes, and each of the blind holes is fixed with a blocking pin 205, a steel ball. 206 is pressed against the opening of the V-shaped groove 204, and the steel ball 206 is fixed to the front end of the fixed caliper body by a second spring 207.
- the arc groove 8 is only used to distinguish it from the names of other slots. It is called an arc groove. Actually, it is not limited to a circular groove. It can also be other shapes.
- the purpose of 8 is to allow the screw rod 3 to be placed in the arcuate groove 8 at the upper end of the nut body 401, and the screw rod 3 can be engaged with the thread of the lower portion of the arcuate groove 8, and of course, it can also be on the periphery of the nut body 401.
- the thread for engaging the screw 3 is provided, and the position of the nut is changed by the structure described later to engage or separate the screw 3 and the nut 4.
- the outer wall of the female nut 402 is sleeved with a first spring 9, and the lower end of the first spring 9 is fixed on the threaded sleeve 11, and the upper end thereof is preferably placed on the lower surface of the nut body 401.
- the purpose is as follows: In order to ensure that the thread of the thread and the thread of the screw can be meshed reliably and withstand a huge clamping force; the second is that when the opening is slow, the supporting nut does not slip off the screw; the third is to use the rapid propulsion function in the threaded state. When the speed is guaranteed, the thrust is moderate.
- the function of the slot 202 is to ensure the effective moving distance necessary for the thread to be disengaged from the thread of the screw when the nut and the screw are in a threaded state and are rapidly advanced.
- the rotating eccentric shaft structure can be realized by a variety of arrangements for those skilled in the art. The common way is to achieve by rotating. The cross-sectional structure as shown in FIG. 2, that is, the eccentric shaft is set on the rotating circumference. The edge is implemented. What needs to be specially mentioned is the structure of the rear steel ball 206 and the spring 207. The purpose is that one end of the second spring 207 is pressed against the V-shaped groove 204 from the side through the steel ball 206, and the steel ball 206 is positioned to accurately position the operation.
- the mounting position of the handlebar 6 and the stop pin 205 are used to position and limit the specific position of the operating handlebar 6 during rapid/slow motion.
- the other end of the second spring 207 can be fixed to an adjusting screw 208, so as to adjust the preload of the steel ball 206 against the V-shaped groove by tightening the adjusting screw 208.
- the handle 6 When the handle 6 is pulled, the handle 6 is driven to change the position of the eccentric shaft 203 in the slot, and when the eccentric shaft 203 is moved upward, the thread insert 402 is not directly moved upward, and the nut 402 is moved upward because The nut body 401 is subjected to the elastic force of the first spring 9, thereby driving the wire mother 402 and the connecting plate 201 to move upward, and the position of the eccentric shaft changing in the slot is only to move the wire mother 402 upward to make room, due to The silk mother moves the 402 upward, and the silk mother 4 meshes with the screw rod 3 to realize the slow motion; on the contrary, the silk mother 402 moves downward under the action of the eccentric shaft 203, and the screw rod 3 is separated from the silk mother 4, thereby realizing Quick action.
- the quick-acting mechanism 5 is realized.
- the front end of the fixed caliper body on the side of the screw rod 3 is provided with a thread mother groove 7, and the wire mother 4 is placed in the wire mother groove 7, and the wire mother 4 is included.
- a thread main body 401 of the screw rod 3 and a thread nut holder 402 away from the screw rod 3 and an end of the thread main body 401 adjacent to the screw rod 3 is opened in the direction of the extension of the screw rod 3, and an arc groove 8 is formed at the bottom of the arc groove 8
- the first screw spring 9 is disposed on the outer wall of the thread nut 402, and the first screw hole 10 is connected to the end of the wire nut 7 away from the screw rod 3.
- the first screw A threaded sleeve 11 is screwed into the hole 10, and one end of the first spring 9 away from the screw rod 3 is fixed by the threaded sleeve 11, and the thread insert 402 is passed through the center hole of the threaded sleeve 11, and the wire holder 402 is away from the screw rod 3.
- One end is hinged to the operating handle 6 by a pin 209, and the hinge point is to the distance of the operating handle 6 from the edge of one end of the wire insert and the hinge point to the The distances of one side edge of the operating handle 6 are not equal.
- the difference is that, firstly, the snap action mechanism 5 is not disposed under the screw rod 3, but is disposed on the side surface of the screw rod 3; secondly, the thread mother handle 402 and the operation handlebar 6 are passed through the pin.
- the shaft 209 is directly hinged, and the position of the hinge point, that is, the pin 209 is not equal to the distance between the side portion and the end portion, that is, the lengths of m and n in FIG. 6 and FIG. 7 are not equal, so that when the handle is pulled At 6 o'clock, since the positions of m and n are different, the positions of the mother-in-law 402 are different, and the purpose of separating the screw 3 and the nut 4 is achieved.
- the snap action mechanism 5 is realized.
- the front end of the fixed caliper body located below the screw rod 3 is provided with a thread mother groove 7, and the wire core 4 is placed in the wire mother groove 7, and the wire core 4 includes
- the upper end of the main body 401 and the lower end of the main body 402 the upper end of the main body 401 has an arcuate groove 8 extending along the extending direction of the screw, and the bottom of the circular groove 8 is provided with a thread meshing with the screw 3
- the first spring 9 is sleeved on the outer wall of the spring 402, and the first screw hole 10 is connected to the lower side of the threaded mother groove 7.
- the first screw hole 10 is internally screwed with a threaded sleeve 11 and the lower end of the first spring 9 Fixed on the threaded sleeve 11, the female insert 402 passes through the central hole of the threaded sleeve 11, and the lower surface of the female insert 402 is provided with an upwardly extending second screw hole, and the second screw hole is provided with a a screw that engages an internal thread of the second screw hole, a nut of the screw is coupled to the operating handle, the operating handle is disposed on a horizontally disposed track and is rotatable to the track, the track At least a portion of the rail surface has a convex portion.
- the snap action mechanism 5 is disposed under the screw rod 3, except for the portion finally connected to the operation handle, that is, the bottom of the nut holder 402 is provided with a screw screwed from the bottom to the top.
- a stepped screw 210 can be used.
- the nut of the stepped screw 210 is fixed in the middle of the operating handle, and the operating rods at both ends of the operating handle are placed on the track, which is a rugged track, preferably one
- the circular track, the details on the track are shown in Figure 10, that is, there are at least two different heights, and the transition between the high and low points of the rail surface is preferably smoother, and the bottom of the step screw 210 is also provided with a pad. ⁇ 211.
- the lower end of the mother insert 402 can also be directly fixed to the operating handle 6.
- This fixing method adds the step screw 210, and the nut of the step screw 210 is used to drive the female nut 402, and the fixing effect is better.
- the snap action mechanism 5 is realized in such a manner that the front end of the fixed caliper body located under the screw rod 3 is provided with a thread groove 7 in which the wire core 4 is placed in the wire mother groove 7, and the wire core 4 includes the upper end.
- a thread main body 401 and a lower end female nut 402 the upper end of the main body 401 has a circular arc groove 8 extending along the extending direction of the screw rod, and the bottom of the circular arc groove 8 is provided with a thread meshing with the screw rod 3, a first spring is sleeved on the outer wall of the silk nut, and a first screw hole is communicated under the wire mother groove, and a threaded sleeve is screwed into the first screw hole, and the lower end of the first spring is Fixed on the threaded sleeve, the thread is passed through the central hole of the threaded sleeve, and the lower surface of the thread is provided with an upwardly extending second screw hole, and the second screw hole is provided There is a screw that engages the thread in the second screw hole, and the nut of the screw is coupled to the operating handle by a lever, and the direction of movement of each end of the lever is a vertical direction.
- the difference is that the nut of the stepped screw 210 is fixed to one end of the lever, and the other end of the lever is connected to the operating handle 6, and the lever can enclose the operating handle 6 as an operating hand that rotates around the rotating shaft 212.
- the handlebar 6 is pressed, and the nut of the screw is naturally moved up and down by the lever, thereby realizing the up and down movement of the nut holder 402, thereby completing the engagement of the screw 3 and the nut 4.
- the specific position of the mother insert 402 in the high position and the low position should be reasonably determined according to the movable stroke between the screw and the nut, which can be pre-considered by those skilled in the art when designing the vice. .
- the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.
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Abstract
一种台虎钳,包括固定钳体(1)、活动钳体(2)、丝杆(3)、丝母(4)、用于使丝杆(3)和丝母(4)啮合或脱离以实现慢动或快动的快动机构(5)和用于操动快动机构(5)的操作手把(6),活动钳体(2)与丝杆(3)装配成一体,快动机构(5)和操作手把(6)均设于固体钳体前端(101)。通过本发明将快动机构(5)和操作手把(6)设置在固定钳体前端(101),方便了人员的使用操作,提高了加工效率。
Description
一种台虎钳 技术领域
本发明涉及一种机械加工设备, 特别涉及一种台虎钳。 背景技术
台虎钳是一种钳工用夹持工具, 用于对工件的夹持固定。 现有的普通台 虎钳基本都是由活动钳体、 固定钳体、 丝杆、 丝母和底盘五大部分组成的, 具体结构如下: 在底盘上安装有固定钳体, 该固定钳体与丝母装配成一体, 即两部件无相对移动。 活动钳体与丝杆装配成一体, 在与丝母形成螺纹啮合 的丝杆外端装有手把; 该活动钳体横向贯穿于固定钳体上部的内腔并可在其 中移动。 如果需要固定钳体在底盘上转动, 以改变其加工位置, 还需要在底 盘上设有用于锁定固定钳体位置的螺釘。 使用时, 旋转与丝母啮合的丝杆, 使活动钳体与固定钳体产生相对位移, 以达到夹紧和松开工件的目的。 存在的不足是: 旋转丝杆只能带动活动钳体进行慢速移动, 因而也只能实现 慢速夹紧与松开工件。 尤其对于钳口调整距离较大、 工件更换频繁的台虎钳 来说, 为了使活动钳体与固定钳体产生较大的相对位移, 则需要频繁和长时 间地旋转丝杆, 这样会使本来就比较繁重的钳工工作变得更加笨拙, 也提高 了劳动强度, 降低了工作效率。
现有快动台虎钳的结构原理基本都是以丝杆与丝母的脱离,从而达到快动的 目的。 但现有的操作手把即用来操动丝杆和丝母啮合或分开的手柄, 大都安 装在固定钳体的底座或中后部的位置上, 在钳工的操作过程中, 操作者的胳 臂移动行程长, 非常不方便。 发明内容
本发明所要解决的技术问题是提供一种使钳工操作时更加方便的台虎 钳。
本发明解决上述技术问题的技术方案如下: 一种台虎钳, 包括固定钳体、 活 动钳体、 丝杆、 丝母、 用于使所述丝杆和所述丝母啮合或脱离以实现慢动或 快动的快动机构和用于操动所述快动机构的操作手把, 所述活动钳体与所述 丝杆装配成一体, 所述快动机构和所述操作手把均设于所述固定钳体前端。
本发明的有益效果是: 将操作手把和快动机构置于固定钳体前端, 机械 加工人员无需长距离移动手臂, 方便了操作; 另外, 在制造台虎钳时, 将快 动机构置于固定钳体前端也非常方便。
在上述技术方案的基础上, 本发明还可以做如下改进 :
进一步, 所述快动机构这样实现, 位于所述丝杆下方的所述固定钳体的 前端开有丝母槽, 所述丝母置于所述丝母槽内, 所述丝母包括上端的丝母本 体和下端的丝母把, 所述丝母本体的上端沿丝杆延伸方向开有一条圓弧槽, 该圓弧槽的底部设有与所述丝杆相啮合的螺纹, 所述丝母把的外壁上套设有 第一弹簧, 所述丝母槽的下方连通有一个第一螺孔, 所述第一螺孔内旋接有 一个螺纹套, 所述第一弹簧的下端固定在所述螺纹套上, 所述丝母把穿过所 述螺纹套的中心孔, 所述丝母把的下表面设有一个开口槽, 所述开口槽上设 有销孔, 一块连接板的上端插入所述开口槽并由穿过所述销孔的销子固定, 该连接板的下端设有狭槽, 所述狭槽中装设有偏心轴, 所述偏心轴与所述操 作手 4巴相连接; 所述偏心轴的侧表面沿周向开有一个环状的 V形槽, 所述 V 形槽内设有一对呈八字状的盲孔, 所述每个盲孔内各固定有一个挡销, 一个 钢球顶压在所述 V形槽的开口, 所述钢球通过第二弹簧固定在所述固定钳体 前端。采用上述进一步方案的有益效果是通过偏心轴的结构实现了操作手把 带动丝母把动作, 进而实现了丝杆和丝母的啮合 /分离, 偏心轴上还设有定 位装置, 系统整体连接和传动非常稳定可靠, 寿命长。
进一步, 所述快动机构这样实现, 位于所述丝杆一侧的所述固定钳体的 前端开有丝母槽, 所述丝母置于所述丝母槽内, 所述丝母包括靠近所述丝杆 的丝母本体和远离所述丝杆的丝母把, 所述丝母本体的靠近丝杆一端沿丝杆 延伸方向开有一条圓弧槽, 该圓弧槽的底部设有与所述丝杆相啮合的螺纹, 所述丝母把的外壁上套设有第一弹簧, 所述丝母槽的远离所述丝杆一端还连 通有一个第一螺孔, 所述第一螺孔内旋接有一个螺纹套, 所述第一弹簧的远 离所述丝杆一端由所述螺纹套固定位置, 所述丝母把穿过所述螺纹套的中心 孔, 所述丝母把的远离所述丝杆一端通过销轴与所述操作手把铰接, 且该铰 接点到所述操作手把的靠近所述丝母把一端边缘的距离和该铰接点到所述 操作手把的一侧边缘的距离不相等。采用上述进一步方案的有益效果是通过 操作手把在两个方向上距铰接点不等的结构实现了操作手把带动丝母把动 作, 进而实现了丝杆和丝母的啮合 /分离, 其优点是, 快动机构的结构非常 筒单, 但连接和动作不如第一种实施方式稳定。
进一步, 所述快动机构这样实现, 位于所述丝杆下方的所述固定钳体的 前端开有丝母槽, 所述丝母置于所述丝母槽内, 所述丝母包括上端的丝母本 体和下端的丝母把, 所述丝母本体的上端沿丝杆延伸方向开有一条圓弧槽, 该圓弧槽的底部设有与所述丝杆相啮合的螺纹, 所述丝母把的外壁上套设有 第一弹簧, 所述丝母槽的下方连通有一个螺孔, 所述螺孔内旋接有一个螺纹 套, 所述第一弹簧的下端固定在所述螺纹套上, 所述丝母把穿过所述螺纹套 的中心孔, 所述丝母把的下表面设有一个向上延伸的第二螺孔, 所述第二螺 孔内设有一个与该第二螺孔的内螺紋相啮合的螺釘, 所述螺釘的螺帽与所述 操作手把相连接, 所述操作手把设于水平设置的轨道上并可贴所述轨道转 动, 所述轨道的至少一部分轨面具有凸部。 采用上述进一步方案的有益效果 是将操作手把贴着轨道, 操作操作手把时, 操作手把随轨道的高低在轨道上 也处于高位或低位, 以此实现了操作手把带动丝母把动作, 进而实现了丝杆
和丝母的啮合 /分离, 这种结构比第一种实施方式中的结构筒单, 而固定和 连接又要优于第二种实施方式。
进一步, 所述快动机构这样实现, 位于所述丝杆下方的所述固定钳体的 前端开有丝母槽, 所述丝母置于所述丝母槽内, 所述丝母包括上端的丝母本 体和下端的丝母把, 所述丝母本体的上端沿丝杆延伸方向开有一条圓弧槽, 该圓弧槽的底部设有与所述丝杆相啮合的螺纹, 所述丝母把的外壁上套设有 第一弹簧, 所述丝母槽的下方连通有一个第一螺孔, 所述第一螺孔内旋接有 一个螺纹套, 所述第一弹簧的下端固定在所述螺纹套上, 所述丝母把穿过所 述螺纹套的中心孔, 所述丝母把的下表面设有一个向上延伸的第二螺孔, 所 述第二螺孔内设有一个与该第二螺孔内的螺紋相啮合的螺釘, 所述螺釘的螺 帽通过一个杠杆与所述操作手把相连接, 所述杠杆每一端的动作方向均为竖 直方向。采用上述进一步方案的有益效果是通过杠杆原理实现了操作手把带 动丝母把动作, 进而实现了丝杆和丝母的啮合 /分离, 其优点是, 是实施例 3 的一种更为筒化是实施方式, 结构更加筒单, 操作更加省力。 附图说明
图 1为本发明实施例 1的整体示意图;
图 2为图 1的 A-A剖面图;
图 3为图 2的局部放大图;
图 4为图 3的 B-B剖面图;
图 5为图 3的 C-C剖面图;
图 6为本发明实施例 2的处于快动位置的示意图;
图 7为本发明实施例 2的处于慢动位置的示意图;
图 8为本发明实施例 3的整体示意图;
图 9为图 8的仰视示意图;
图 10为图 9的侧剖面图;
图 11为本发明实施例 4的处于慢动位置的示意图;
图 12为本发明实施例 4的处于快动位置的示意图。
附图中, 各标号所代表的部件列表如下:
1、 固定钳体, 101、 固定钳体前端, 1 02、 台虎钳中段, 103、 台虎钳尾 部, 2、 活动钳体, 3、 丝杆, 4、 丝母, 401、 丝母本体, 402、 丝母把, 403、 开口槽, 404、 销子, 5、 快动机构, 6、 操作手把, 7、 丝母槽, 8、 圓弧槽, 9、 第一弹簧, 10、 第一螺孔, 11、 螺纹套;
201、 连接板, 202、狭槽, 203、 偏心轴, 204、 V型槽, 205、挡销, 206、 钢球, 207、 第二弹簧, 208、 调节螺釘, 209、 销轴, 21 0、 阶梯螺釘, 211、 垫圏, 212、 转轴。 具体实施方式
以下结合附图对本发明的原理和特征进行描述, 所举实例只用于解释本 发明, 并非用于限定本发明的范围。
如图 1所示, 一种台虎钳, 包括固定钳体 1、 活动钳体 2、 丝杆 3、 丝母 4、 用于使丝杆 3和丝母 4啮合或脱离以实现慢动或快动的快动机构 5和用 于操动快动机构 5的操作手把 6 , 活动钳体 2与丝杆 3装配成一体, 快动机 构 5和操作手把 6均设于固定钳体前端 101。 对于台虎钳来说, 一般都通过 丝杆和丝母的啮合或脱离这种原理来实现慢动或快动切换, 只不过在快动机 构 5的具体结构上存在区别。 对于本发明来说, 由于现有的台虎钳的快动机 构 5和操作手柄 6大都是设置在底座或台虎钳的中后端, 而夹紧工件却在位 于前端的活动钳体处, 因此钳工在切换慢动 /快动时, 手臂移动行程长, 操 作起来很不方便。 因此本发明的第一个发明点是将快动机构 5和操作手把 6 均设于固定钳体前端 101 , 保护的是快动机构和操作手把要设置在这个位置
区域内, 方便人员操作, 提高了生产效率。 另外在这里说明一下, 这里提到 的 "前端" , "后端" 是相对台虎钳的活动钳体来说的, 本领域技术人员习 惯上将活动钳体的一端即朝外用于夹持工件的一端称为 "前端" , 另一端称 为 "尾端" 或 "后端" 。 另外, 这个 "固定钳体前端" 对于非专业人员可能 觉得不是 4艮清楚, 但是对于生产台虎钳的厂家而言, 固定钳体前端却是一个 业内约定俗成的专业术语, 即为固定钳体下方前端突出来的部分, 如图 1三 个虚线框依次表示的是固定钳体前端 101、 台虎钳中段 102、 台虎钳尾部 103 这三个区域, 台虎钳中段 102里面的固定钳体是正常未向前突出的部分, 这 里提到的 "固定钳体前端 101 " 的位置区域是可以清楚的从外观上直接确定 的, 不论是何种型式台虎钳都是清楚而确定的, 因为在生产时, 固定钳体前 端 101是位于固定钳体的底部, 仅仅底部这部分是向前突出来的, 反映到外 观上,这个底部突出来的部分就是本领域技术人员常说的 "固定钳体前端", 那么台虎钳底部突出来的这部分与台虎钳本体不突出的其它部分即台虎钳 中段 102之间必然是存在一条突出部与不突出部之间的分界线,这个分界线 前端的突出来的固定钳体部分就是本文所称的固定钳体前端。 实物照片可清 楚的反映这一点, 鉴于附图格式要求, 本申请文件暂未附上实物照片, 申请 人可随时在后继程序中提供实物照片来说明这个突出范围是可以直接无疑 义的从外观上清楚确定的。
另外, 在此基础上, 本发明的发明点还在于, 给出了下面几种具体实现 方式, 这些具体实施方式都具有不同的操动结构, 有的设计合理, 有的操作 省力, 都能实现本发明的目的。 详述如下:
实施例 1 :
如图 1至图 5所示, 快动机构 5这样实现, 位于丝杆 3下方的固定钳体 的前端开有丝母槽 7 , 丝母 4置于丝母槽 7内, 丝母 4包括上端的丝母本体 401和下端的丝母把 402 , 丝母 4本体的上端沿丝杆 3延伸方向开有一条圓
弧槽 8 , 该圓弧槽 8的底部设有与丝杆 3相啮合的螺纹, 丝母把 402的外壁 上套设有第一弹簧 9,所述丝母槽 7的下方连通有第一螺孔 10 , 第一螺孔 10 内旋接有一个螺纹套 1 1 ,第一弹簧 9的下端固定在螺纹套 11上,丝母把 402 穿过螺纹套 11的中心孔,丝母把 402的下表面设有一个开口槽 403 ,所述开 口槽 403上设有销孔,一块连接板 201的上端插入开口槽 403并由穿过所述 销孔的销子 404固定, 该连接板的下端设有狭槽 202 , 所述狭槽 202中装设 有偏心轴 203 , 偏心轴 203与操作手把 6相连接, 优选偏心轴 203与操作手 把 6为一体结构或一体成型;
偏心轴 203的侧表面沿周向开有一个环状的 V形槽 204 , V形槽 204内 设有一对呈八字状的盲孔,每个盲孔内各固定有一个挡销 205 ,—个钢球 206 顶压在 V形槽 204的开口,钢球 206通过第二弹簧 207固定在所述固定钳体 前端。
这里需要说明如下几点, 第一, 圓弧槽 8这里只是为了与其他槽的名称 相区别, 叫成圓弧槽, 实际上并不限于圓弧槽, 还可以是其他形状, 这里圓 弧槽 8的目的是能够让丝杆 3放在丝母本体 401上端的圓弧槽 8内,且丝杆 3可以与圓弧槽 8下部的螺纹相啮合, 当然, 还可以在丝母本体 401的外围 设置用于与丝杆 3啮合的螺纹,通过后面所述的结构改变丝母的位置可使丝 杆 3和丝母 4啮合或分开就可以。
第二, 丝母把 402的外壁上套设有第一弹簧 9 , 第一弹簧 9的下端固定 在螺纹套 11上, 其上端优选顶到丝母本体 401的下表面上, 其目的在于: 一是为保证丝母螺纹与丝杆螺纹能够啮合可靠, 承受巨大的夹紧力; 二是慢 动开口时, 支撑的丝母不会下滑脱离丝杆; 三是在螺纹啮合状态下使用快速 推进功能时, 保证推力适中。
第三, 狭槽 202的作用是: 当丝母与丝杆处于螺纹啮合状态且进行快速 推进时, 能保证丝母与丝杆螺紋脱离所必需的有效移动距离。
第四, 转动偏心轴结构对于本领域技术人员来说, 有多种设置方式可以 实现, 常用的方式是通过转动来实现, 可如附图 2所示的剖面结构, 即偏心 轴设置在转动圓周的边缘来实现。 需要特别提一下的是后面钢球 206和弹簧 207的结构, 其目的是, 第二弹簧 207的一端通过钢球 206从侧面顶紧 V形 槽 204 ,钢球 206起定位作用, 能准确定位操作手把 6的安装位置,挡销 205 用来定位限制操作手把 6在快动 /慢动时的具体位置。 另外, 第二弹簧 207 的另一端可固定在一个调节螺釘 208上, 这样可通过松紧调节螺釘 208 , 达 到调节钢球 206顶紧 V形槽的预紧力的目的。
当扳动操作手把 6时,操作手把 6带动改变偏心轴 203在狭槽中的位置, 偏心轴 203向上动作时并不带动丝母把 402直接向上动作,丝母把 402向上 动作是由于丝母本体 401受到第一弹簧 9的弹力作用,从而带动丝母把 402、 连接板 201—起向上移动,偏心轴在狭槽中改变位置只是为给丝母把 402向 上移动让出空间, 由于丝母把 402向上移动, 使丝母 4与丝杆 3啮合, 实现 了慢动; 反之, 丝母把 402在偏心轴 203的作用下向下动作, 丝杆 3与丝母 4脱离, 实现了快动。
实施例 2 :
如图 6、 7所示, 快动机构 5这样实现, 位于丝杆 3—侧的固定钳体的 前端开有丝母槽 7 , 丝母 4置于丝母槽 7内, 丝母 4包括靠近丝杆 3的丝母 本体 401和远离丝杆 3的丝母把 402 , 丝母本体 401的靠近丝杆 3一端沿丝 杆 3延伸方向开有一条圓弧槽 8 , 该圓弧槽 8的底部设有与所述丝杆 3相啮 合的螺纹, 丝母把 402的外壁上套设有第一弹簧 9 , 丝母槽 7的远离丝杆 3 一端还连通有第一螺孔 10 , 第一螺孔 10内旋接有一个螺纹套 11 , 第一弹簧 9的远离丝杆 3一端由螺纹套 11固定位置, 丝母把 402穿过螺纹套 11的中 心孔, 丝母把 402的远离丝杆 3的一端通过销轴 209与操作手把 6铰接, 且 该铰接点到操作手把 6的靠近所述丝母把一端边缘的距离和该铰接点到所述
操作手把 6的一侧边缘的距离不相等。
与实施例 1相比, 区别在于, 第一, 快动机构 5不是设置在丝杆 3的下 方,而是设置在丝杆 3的侧面;第二,丝母把 402与操作手把 6通过销轴 209 直接铰接, 铰接点的位置即销轴 209距离侧部和距离端部的距离不相等, 即 附图 6、 附图 7中的 m和 n的长度不等, 这样当扳动操作手把 6时, 由于 m、 n的位置不同, 实现丝母把 402的位置不同, 达到使丝杆 3与丝母 4分合的 目的。
实施例 3:
如图 8、 9、 10所示, 快动机构 5这样实现, 位于丝杆 3下方的固定钳 体的前端开有丝母槽 7 , 丝母 4置于丝母槽 7内, 丝母 4包括上端的丝母本 体 401和下端的丝母把 402 , 丝母本体 401的上端沿丝杆延伸方向开有一条 圓弧槽 8 , 该圓弧槽 8的底部设有与丝杆 3相啮合的螺纹, 丝母把 402的外 壁上套设有第一弹簧 9, 丝母槽 7的下方连通有第一螺孔 10 , 第一螺孔 10 内旋接有一个螺纹套 11 ,第一弹簧 9的下端固定在螺纹套 11上,丝母把 402 穿过螺纹套 11的中心孔, 丝母把 402的下表面设有一个向上延伸的第二螺 孔, 所述第二螺孔内设有一个与该第二螺孔的内螺纹相啮合的螺釘, 所述螺 釘的螺帽与所述操作手把相连接, 所述操作手把设于水平设置的轨道上并可 贴所述轨道转动, 所述轨道的至少一部分轨面具有凸部。
与实施例 1相比, 相同点是快动机构 5都是设置在丝杆 3的下方, 区别 在于最后与操作手柄相连的部分, 即丝母把 402的底部设有从下向上拧入的 螺釘, 为了准确定位, 可使用阶梯螺釘 210 , 该阶梯螺釘 21 0的螺帽固定在 操作手柄的中间, 操作手柄的两端的操作杆搭在轨道上, 该轨道是一个高低 不平的轨道, 优选为一个环状轨道, 在轨道上的详情如图 1 0所示, 即至少 具有两个不同的高度, 轨面的高、 低点之间最好是较为平滑的过渡, 阶梯螺 釘 210底部还设有垫圏 211。 当转动操作杆时, 由于轨道具有凸部, 或者说
轨面具有不同的高度, 旋转操作手把 6时, 操作手把 6随轨道的轨面高低不 同而处于不同的高度, 自然而然中间的阶梯螺釘 210的螺帽也就随之处于高 位或低位,从而带动丝母把 402在不同高度的切换,使丝杆 3和丝母 4分合。
当然丝母把 402的下端也可以直接固定在操作手柄 6上,这种固定方式 增加了阶梯螺釘 210 , 通过阶梯螺釘 210的螺帽来带动丝母把 402 , 固定效 果会更好。
实施例 4:
如图 11、 12所示, 快动机构 5这样实现, 位于丝杆 3下方的固定钳体 的前端开有丝母槽 7 , 丝母 4置于丝母槽 7内, 丝母 4包括上端的丝母本体 401和下端的丝母把 402 , 丝母本体 401的上端沿丝杆延伸方向开有一条圓 弧槽 8 , 该圓弧槽 8的底部设有与丝杆 3相啮合的螺纹, 所述丝母把的外壁 上套设有第一弹簧, 所述丝母槽的下方连通有一个第一螺孔, 所述第一螺孔 内旋接有一个螺纹套, 所述第一弹簧的下端固定在所述螺纹套上, 所述丝母 把穿过所述螺纹套的中心孔,所述丝母把的下表面设有一个向上延伸的第二 螺孔, 所述第二螺孔内设有一个与该第二螺孔内的螺紋相啮合的螺釘, 所述 螺釘的螺帽通过一个杠杆与所述操作手把相连接,所述杠杆每一端的动作方 向均为竖直方向。
与实施例 3相比, 区别在于, 阶梯螺釘 210的螺帽固定在杠杆的一端, 杠杆的另一端与操作手把 6相连,杠杆可以将操作手把 6围成一个绕转轴 212 旋转的操作手把, 这样按下操作手把 6 , 通过杠杆, 自然而然螺釘的螺帽也 随之上下动作, 进而实现丝母把 402的上下动作, 从而完成丝杆 3和丝母 4 的啮合。
上述几个实施例中,丝母把 402在高位和低位的具体位置应根据丝杆和 丝母之间的活动行程来合理确定, 这点本领域技术人员在设计台虎钳时自然 可以预先考虑。
以上所述仅为本发明的较佳实施例, 并不用以限制本发明, 凡在本发明 的精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发 明的保护范围之内。
Claims
1. 一种台虎钳, 包括固定钳体、 活动钳体、 丝杆、 丝母、 用于使所述 丝杆和所述丝母啮合或脱离以实现慢动或快动的快动机构和用于操动所述 快动机构的操作手把, 所述活动钳体与所述丝杆装配成一体, 其特征在于: 所述快动机构和所述操作手把均设于所述固定钳体前端。
2. 根据权利要求 1所述一种台虎钳, 其特征在于: 所述快动机构这样 实现, 位于所述丝杆下方的所述固定钳体的前端开有丝母槽, 所述丝母置于 所述丝母槽内, 所述丝母包括上端的丝母本体和下端的丝母把, 所述丝母本 体的上端沿丝杆延伸方向开有一条圓弧槽, 该圓弧槽的底部设有与所述丝杆 相啮合的螺纹, 所述丝母把的外壁上套设有第一弹簧, 所述丝母槽的下方连 通有一个第一螺孔, 所述第一螺孔内旋接有一个螺纹套, 所述第一弹簧的下 端固定在所述螺纹套上, 所述丝母把穿过所述螺纹套的中心孔, 所述丝母把 的下表面设有一个开口槽, 所述开口槽上设有销孔, 一块连接板的上端插入 所述开口槽并由穿过所述销孔的销子固定, 该连接板的下端设有狭槽, 所述 狭槽中装设有偏心轴, 所述偏心轴与所述操作手把相连接;
所述偏心轴的侧表面沿周向开有一个环状的 V形槽,所述 V形槽内设有 一对呈八字状的盲孔, 所述每个盲孔内各固定有一个挡销, 一个钢球顶压在 所述 V形槽的开口, 所述钢球通过第二弹簧固定在所述固定钳体前端。
3. 根据权利要求 1所述一种台虎钳, 其特征在于: 所述快动机构这样 实现, 位于所述丝杆一侧的所述固定钳体的前端开有丝母槽, 所述丝母置于 所述丝母槽内, 所述丝母包括靠近所述丝杆的丝母本体和远离所述丝杆的丝 母把, 所述丝母本体的靠近丝杆一端沿丝杆延伸方向开有一条圓弧槽, 该圓 弧槽的底部设有与所述丝杆相啮合的螺纹, 所述丝母把的外壁上套设有第一 弹簧, 所述丝母槽的远离所述丝杆一端还连通有一个第一螺孔, 所述第一螺
孔内旋接有一个螺纹套, 所述第一弹簧的远离所述丝杆一端由所述螺纹套固 定位置, 所述丝母把穿过所述螺纹套的中心孔, 所述丝母把的远离所述丝杆 一端通过销轴与所述操作手把铰接,且该铰接点到所述操作手把的靠近所述 丝母把一端边缘的距离和该铰接点到所述操作手把的一侧边缘的距离不相 等。
4. 根据权利要求 1所述一种台虎钳, 其特征在于, 所述快动机构这样 实现, 位于所述丝杆下方的所述固定钳体的前端开有丝母槽, 所述丝母置于 所述丝母槽内, 所述丝母包括上端的丝母本体和下端的丝母把, 所述丝母本 体的上端沿丝杆延伸方向开有一条圓弧槽, 该圓弧槽的底部设有与所述丝杆 相啮合的螺纹, 所述丝母把的外壁上套设有第一弹簧, 所述丝母槽的下方连 通有一个螺孔, 所述螺孔内旋接有一个螺纹套, 所述第一弹簧的下端固定在 所述螺纹套上, 所述丝母把穿过所述螺纹套的中心孔, 所述丝母把的下表面 设有一个向上延伸的第二螺孔,所述第二螺孔内设有一个与该第二螺孔的内 螺纹相啮合的螺釘, 所述螺釘的螺帽与所述操作手把相连接, 所述操作手把 设于水平设置的轨道上并可贴所述轨道转动, 所述轨道的至少一部分轨面具 有凸部。
5. 根据权利要求 1所述一种台虎钳, 其特征在于, 所述快动机构这样 实现, 位于所述丝杆下方的所述固定钳体的前端开有丝母槽, 所述丝母置于 所述丝母槽内, 所述丝母包括上端的丝母本体和下端的丝母把, 所述丝母本 体的上端沿丝杆延伸方向开有一条圓弧槽, 该圓弧槽的底部设有与所述丝杆 相啮合的螺纹, 所述丝母把的外壁上套设有第一弹簧, 所述丝母槽的下方连 通有一个第一螺孔, 所述第一螺孔内旋接有一个螺纹套, 所述第一弹簧的下 端固定在所述螺纹套上, 所述丝母把穿过所述螺纹套的中心孔, 所述丝母把 的下表面设有一个向上延伸的第二螺孔, 所述第二螺孔内设有一个与该第二 螺孔内的螺紋相啮合的螺釘,所述螺釘的螺帽通过一个杠杆与所述操作手把
相连接, 所述杠杆每一端的动作方向均为竖直方向。
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CN112275916A (zh) * | 2020-09-22 | 2021-01-29 | 阜阳市鼎铭汽车配件制造有限公司 | 一种用于汽车配件冲压的模具安装机构 |
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USD790310S1 (en) * | 2015-09-21 | 2017-06-27 | Lawrence St. Peter | Handle adapter for a bench vice |
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