Positioning device and clamp

Abstract

The invention discloses a positioning device and a clamp. The first positioning mechanism is arranged on the base and is provided with a first positioning part; the second positioning mechanism is in sliding connection with the base in the direction close to and away from the first positioning mechanism, and the second positioning mechanism is provided with a second positioning part; and the adjusting mechanism is arranged on the second positioning mechanism, the adjusting mechanism is provided with an adjusting head capable of stretching out and retracting, and when stretching out, the adjusting head abuts against the first positioning mechanism to adjust the distance between the first positioning part and the second positioning part. In this way, the distance between the second positioning part and the first positioning part can be adjusted by connecting the second positioning mechanism with the base in a sliding mode. By arranging the adjusting mechanism, the adjusting mechanism extends out of the adjusting head to abut against the first positioning mechanism, and therefore the distance between the first positioning part and the second positioning part can be positioned. Therefore, the time for adjusting the equipment during model replacement can be shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical assembly, and is characterized by a positioning device and a clamp. Background Art

[0002] Vehicle hydraulic control units have various housings depending on the model, but they have many identical related parts. In the press-fitting equipment for these identical parts, the same press-fitting equipment needs to be compatible with the press-fitting function of different housings for reasons such as cost and energy efficiency. However, when the press-fitting equipment controls the fixture to clamp different models of housings and other parts, the positioning tooling of the entire fixture needs to be replaced.

[0003] Since the positioning tooling of the fixture needs to be replaced quickly to improve production efficiency, it is necessary to add positioning pin holes to the fixture base and the positioning tooling, so that the positioning tooling has two positioning points, which greatly improves the processing accuracy, processing cost, and processing time. Since the processing accuracy is difficult to guarantee, and the positions of the two positioning points cannot be repaired once the processing is completed. This makes it extremely difficult to make spare parts for the positioning tooling, and the positioning tooling is a high-frequency wearing part, and the positioning tooling is frequently replaced and there is wear. If the base pin hole is worn, the entire set of fixtures must be replaced, and all models must be re-adapted to the positioning tooling. If the model is added or the shell is modified, the position of the positioning hole changes, and the positioning tooling needs to be remade, which cannot respond quickly and affects production. Therefore, there is an urgent need for a positioning device and a fixture that can reduce the adjustment time of the equipment when changing models and improve production efficiency. Summary of the invention

[0004] In view of the above problems in the prior art, the present application provides a positioning device and a clamp, which can reduce the adjustment time of the equipment when changing models and improve production efficiency.

[0005] To achieve the above-mentioned purpose, the first aspect of the present application provides a positioning device, including: a base; a first positioning mechanism, the first positioning mechanism is arranged on the base and has a first positioning portion; a second positioning mechanism, the second positioning mechanism is slidably connected to the base along a first direction, and the second positioning mechanism can approach and move away from the first positioning mechanism by sliding relative to the base along the first direction, and the second positioning mechanism has a second positioning portion; an adjustment mechanism, the adjustment mechanism is arranged on the second positioning mechanism, and the adjustment mechanism has an adjustment head that can be extended and retracted, and the adjustment head abuts against the first positioning mechanism when extended to adjust the distance between the first positioning portion and the second positioning portion.

[0006] As described above, by making the second positioning mechanism slidably connected to the base, the distance between the second positioning portion and the first positioning portion can be adjusted. By providing an adjustment mechanism, the adjustment head of the adjustment mechanism is extended to abut against the first positioning mechanism, so that the distance between the first positioning portion and the second positioning portion can be positioned. In this way, the adjustment time of the equipment when changing the model can be reduced, and the production efficiency can be improved.

[0007] As a possible implementation of the first aspect, the adjustment mechanism includes: an adjustment cylinder, which is fixedly disposed on the second positioning mechanism, and a through hole is disposed in the adjustment cylinder, and the through hole extends along the first direction; an adjustment member, which is disposed in the through hole and can move in the through hole along the first direction, and the adjustment member is engaged with the through hole at multiple positions in the through hole, and the adjustment head is disposed at one end of the adjustment member facing the first positioning mechanism.

[0008] As described above, by making the adjustment member engage with the through hole at multiple positions, the adjustment member can conveniently drive the adjustment head to extend and retract for fixing. This makes it convenient to adjust the distance between the first positioning part and the second positioning part, thereby reducing the adjustment time of the equipment when changing the model and improving production efficiency.

[0009] As a possible implementation of the first aspect, the adjusting member includes a first adjusting end and a second adjusting end, the first adjusting end is cylindrical, the second adjusting end is flat, the axis of the first adjusting end coincides with the center line of the second adjusting end, and the adjusting head is arranged on the end surface of the first adjusting end; the through hole includes a first hole section, a second hole section and a third hole section connected in sequence along a direction away from the first positioning mechanism, the first hole section and the third hole section are circular holes, the shape of the second hole section is adapted to the shape of the second adjusting end, and the connection positions of the second hole section and the first hole section and the third hole section are respectively provided with a first limiting surface and a second limiting surface facing the first positioning mechanism, and the second adjusting end can rotate around the axis of the first hole section after entering the first hole section.

[0010] From the above, by setting the first limiting surface and the second limiting surface in the through hole, when the second adjustment end is in the second hole section, the end surface of the second adjustment end can be abutted against the second limiting surface, so that the adjustment member can be engaged with the through hole and the adjustment head can be received in the through hole. It is also possible to make the end surface of the second adjustment end abut against the first limiting surface when the second adjustment end is in the first hole section, so that the adjustment member can be engaged with the through hole and the adjustment head can be extended to abut against the first positioning mechanism. Therefore, by controlling the second adjustment end to abut against the first limiting surface or the second limiting surface, the extension and retraction of the adjustment head can be controlled, thereby adjusting the distance between the first positioning part and the second positioning part.

[0011] As a possible implementation manner of the first aspect, the adjusting head is threadedly connected to the first adjusting end.

[0012] Thus, when the adjustment head is worn beyond a predetermined degree, the adjustment head can be easily replaced. At the same time, the length of the adjustment head exposed from the first adjustment end can be adjusted by rotating the adjustment head, thereby adjusting the distance between the first positioning portion and the second positioning portion when the adjustment head is in the extended state, thereby increasing the adaptability range of the positioning device.

[0013] As a possible implementation manner of the first aspect, the adjustment mechanism further includes: an elastic member, which is disposed in the through hole and drives the adjustment member to move in a direction away from the first positioning mechanism.

[0014] As a possible implementation of the first aspect, the through hole also includes a fourth hole segment, the fourth hole segment is connected to the first hole segment, and a third limiting surface facing away from the first positioning mechanism is provided at the connecting position of the fourth hole segment and the first hole segment; the elastic member is a spring, and the elastic member is sleeved on the first adjusting end, with one end abutting against the second adjusting end and the other end abutting against the third limiting surface.

[0015] As described above, by providing an elastic member to drive the adjusting member to move in a direction away from the first positioning mechanism, the end surface of the second adjusting end can be kept in contact with the first limiting surface or the second limiting surface, so that the adjusting head can be kept in an extended state or a retracted state. Thus, the stability of the positioning device can be improved.

[0016] As a possible implementation manner of the first aspect, the end surface of the second adjustment end is provided with a groove, and the shape of the groove is adapted to the shape of the end of the screwdriver.

[0017] As described above, by providing a groove matching the shape of the end of a screwdriver on the end surface of the second adjustment end, it is convenient for the staff to use a screwdriver to rotate the second adjustment end. As a result, it is convenient for the staff to operate the adjustment member so that the second adjustment end abuts against the first limiting surface or the second limiting surface, thereby controlling the extension and retraction of the adjustment head, and further adjusting the distance between the first positioning portion and the second positioning portion.

[0018] As a possible implementation manner of the first aspect, a plurality of the adjustment mechanisms are provided, and the plurality of adjustment mechanisms adjust the distance between the first positioning portion and the second positioning portion to be different.

[0019] From the above, since the adjustment mechanism adjusts the distance between the first positioning part and the second positioning part differently, the positioning device can be adapted to workpieces of different models, thereby improving the adaptation range of the positioning device. Specifically, when the adjustment heads of all adjustment mechanisms are in a retracted state, the distance between the first positioning part and the second positioning part is the smallest. As the workpiece model changes, the adjustment heads in the corresponding adjustment mechanism can be controlled to be in an extended state, so that the first positioning part and the second positioning part are at a corresponding distance.

[0020] As a possible implementation of the first aspect, a slide rail is provided on the base, the first positioning mechanism and the second positioning mechanism are slidably connected to the slide rail, and a fastener is provided on the first positioning mechanism to fasten the first positioning mechanism to the slide rail.

[0021] As described above, the position of the first positioning mechanism on the slide rail can be adjusted, and further, when the adjusting head of the adjusting mechanism is in the retracted state, the distance between the first positioning portion and the second positioning portion can be adjusted. Thus, the adaptability range of the positioning device can be further improved.

[0022] A second aspect of the present application provides a clamp comprising the positioning device described in any one of the first aspects of the present application.

[0023] As described above, by making the second positioning mechanism slidably connected to the base, the distance between the second positioning portion and the first positioning portion can be adjusted. By providing an adjustment mechanism, the adjustment head of the adjustment mechanism is extended to abut against the first positioning mechanism, so that the distance between the first positioning portion and the second positioning portion can be positioned. In this way, the adjustment time of the equipment when changing the model can be reduced, and the production efficiency can be improved.

[0024] These and other aspects of the invention will become apparent from the following description of the embodiment(s). BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following further illustrates the various features of the present invention and the relationship between the various features with reference to the accompanying drawings. The accompanying drawings are all exemplary, some features are not shown in actual proportion, and some drawings may omit the conventional features in the field involved in the present application and are not necessary for the present application, or additionally show the features that are not necessary for the present application. The combination of the various features shown in the accompanying drawings is not intended to limit the present application. In addition, throughout this specification, the same figure numerals refer to the same content. The specific description of the drawings is as follows:

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the positioning device in this application;

[0027] Figure 2 for Figure 1A cross-sectional view of the positioning device in one direction;

[0028] Figure 3 for Figure 2 A perspective structural diagram of the second barrel;

[0029] Figure 4 for Figure 3 A cross-sectional view of the second barrel with its axis oriented toward the front and left sides;

[0030] Figure 5 for Figure 2 A schematic diagram of the three-dimensional structure of the middle adjusting member, the elastic member and the adjusting head;

[0031] Description of Reference Numerals

[0032] 10 positioning device; 100 base; 110 slide rail; 200 first positioning mechanism; 210 first mounting plate; 220 first positioning portion; 300 second positioning mechanism; 310 second mounting plate; 320 second positioning portion; 400 adjusting mechanism; 410 adjusting cylinder; 411 first cylinder body; 412 second cylinder body; 412a insertion portion; 412b mounting portion; 413 mounting hole; 414 through hole; 414a first hole section; 414b second hole section; 414c third hole section; 414d fourth hole section; 414e first limiting surface; 414f second limiting surface; 414g third limiting surface; 420 adjusting member; 421 first adjusting end; 422 second adjusting end; 423 fourth limiting surface; 424 groove; 430 elastic member; 440 adjusting head. DETAILED DESCRIPTION

[0033] The words "first, second, third, etc." or module A, module B, module C and other similar terms in the specification and claims are only used to distinguish similar objects and do not represent a specific ordering of the objects. It is understandable that the specific order or sequence can be interchanged where permitted so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0034] The term "comprising" as used in the description and claims should not be interpreted as being limited to what is listed thereafter; it does not exclude other elements. It should therefore be interpreted as specifying the presence of the features, integers or components mentioned, but does not exclude the presence or addition of one or more other features, integers or components and groups thereof. Thus, the expression "a device comprising means A and B" should not be limited to a device consisting of components A and B only.

[0035] References to "one embodiment" or "an embodiment" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present invention. Therefore, the phrases "in one embodiment" or "in an embodiment" appearing in various places in this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. In addition, in one or more embodiments, the particular features, structures, or characteristics can be combined in any appropriate manner, as would be apparent to one of ordinary skill in the art from this disclosure.

[0036] Below, in conjunction with the accompanying drawings, the specific structure of a possible embodiment of the positioning device 10 in the present application is exemplarily described.

[0037] The positioning device 10 in the present application includes a base 100, a first positioning mechanism 200, a second positioning mechanism 300 and an adjustment mechanism 400. Among them, the first positioning mechanism 200 is arranged on the base 100 and has a first positioning portion 220. The second positioning mechanism 300 is slidably connected with the base 100 along a first direction, that is, a direction close to and away from the first positioning mechanism 200, and the first positioning mechanism 200 has a second positioning portion 320. The adjustment mechanism 400 is arranged on the second positioning mechanism 300, and the adjustment mechanism 400 has an adjustment head 440 that can be extended and retracted. When the adjustment head 440 is extended, it abuts against the first positioning mechanism 200 to adjust the distance between the first positioning portion 220 and the second positioning portion 320. Therefore, by making the second positioning mechanism 300 slidably connected with the base 100, the distance between the second positioning portion 320 and the first positioning portion 220 can be adjusted. By providing the adjustment mechanism 400, the adjustment head 440 of the adjustment mechanism 400 extends out to abut against the first positioning mechanism 200, so as to position the distance between the first positioning portion 220 and the second positioning portion 320. Thus, the adjustment time of the equipment when changing the model can be reduced, and the production efficiency can be improved.

[0038] In some embodiments, the adjustment mechanism 400 includes an adjustment cylinder 410 and an adjustment member 420. The adjustment cylinder 410 is fixedly arranged on the second positioning mechanism 300, and a through hole 414 is arranged in the adjustment cylinder 410, and the through hole 414 extends along the first direction. The adjustment member 420 is arranged in the through hole 414 and can move in the through hole 414 along the first direction. The adjustment member 420 is engaged with the through hole 414 at multiple positions in the through hole 414, and the adjustment head 440 is arranged at one end of the adjustment member 420 facing the first positioning mechanism 200. Thus, by making the adjustment member 420 engage with the through hole 414 at multiple positions, it is convenient for the adjustment member 420 to drive the adjustment head 440 to extend and retract and fix it. Thus, it is convenient to adjust the distance between the first positioning portion 220 and the second positioning portion 320, so as to reduce the adjustment time of the equipment when changing the model and improve the production efficiency.

[0039] In some embodiments, the adjusting member 420 includes a first adjusting end 421 and a second adjusting end 422, the first adjusting end 421 is cylindrical, the second adjusting end 422 is flat, the axis of the first adjusting end 421 coincides with the center line of the second adjusting end 422, and the adjusting head 440 is disposed on the end surface of the first adjusting end 421. The through hole 414 includes a first hole section 414a, a second hole section 414b and a third hole section 414c connected in sequence in a direction away from the first positioning mechanism 200, the first hole section 414a and the third hole section 414c are circular holes, the shape of the second hole section 414b matches the shape of the second adjusting end 422, the second hole section 414b is connected to the first hole section 414a and the third hole section 414c at a position where the second hole section 414b is connected to the first hole section 414a and the third hole section 414c, respectively, with a first limiting surface 414e and a second limiting surface 414f facing the first positioning mechanism 200, and the second adjusting end 422 can rotate around the axis of the first hole section 414a after entering the first hole section 414a. Thus, by setting the first limiting surface 414e and the second limiting surface 414f in the through hole 414, when the second adjusting end 422 is in the second hole section 414b, the end surface of the second adjusting end 422 is in contact with the second limiting surface 414f, so that the adjusting member 420 is engaged with the through hole 414, and the adjusting head 440 is received in the through hole 414. It is also possible to make the end surface of the second adjusting end 422 in contact with the first limiting surface 414e when the second adjusting end 422 is in the first hole section 414a, so that the adjusting member 420 is engaged with the through hole 414, and the adjusting head 440 is extended to abut against the first positioning mechanism 200. Thus, by controlling the second adjusting end 422 to abut against the first limiting surface 414e or the second limiting surface 414f, the extension and retraction of the adjusting head 440 can be controlled, thereby adjusting the distance between the first positioning portion 220 and the second positioning portion 320.

[0040] In some embodiments, the adjusting head 440 is threadedly connected to the first adjusting end 421. Therefore, when the adjusting head 440 is worn beyond a predetermined degree, it is convenient to replace the adjusting head 440. At the same time, the length of the adjusting head 440 exposed from the first adjusting end 421 can be adjusted by rotating the adjusting head 440, thereby adjusting the distance between the first positioning portion 220 and the second positioning portion 320 when the adjusting head 440 is in the extended state, thereby increasing the adaptability range of the positioning device 10.

[0041] In some embodiments, the adjustment mechanism 400 further includes an elastic member 430 , which is disposed in the through hole 414 and drives the adjustment member 420 to move in a direction away from the first positioning mechanism 200 .

[0042] In some embodiments, the through hole 414 further includes a fourth hole section 414d, the fourth hole section 414d is connected to the first hole section 414a, and the third limiting surface 414g facing away from the first positioning mechanism 200 is provided at the connection position between the fourth hole section 414d and the first hole section 414a. The elastic member 430 is a spring. Specifically, the elastic member 430 is in a compressed state, and the elastic member 430 is sleeved on the first adjustment end 421, one end of the elastic member 430 abuts against the second adjustment end 422, and the other end abuts against the third limiting surface 414g. Thus, by setting the elastic member 430 to drive the adjustment member 420 to move in a direction away from the first positioning mechanism 200, the end face of the second adjustment end 422 can be kept abutting against the first limiting surface 414e or the second limiting surface 414f, so that the adjustment head 440 can be kept in an extended state or a retracted state. Thus, the stability of the positioning device 10 can be improved.

[0043] In some embodiments, the elastic member 430 is a rubber band. Specifically, the elastic member 430 is in a stretched state, one end of the elastic member 430 is fixedly connected to the adjusting member 420 , and the other end is fixedly connected to the through hole 414 .

[0044] In some embodiments, the end surface of the second adjustment end 422 is provided with a groove 424, and the shape of the groove 424 is adapted to the shape of the end of the screwdriver, and can be, for example, a straight shape, a cross shape, a hexagonal shape, etc. Therefore, by providing the groove 424 adapted to the shape of the end of the screwdriver on the end surface of the second adjustment end 422, it is convenient for the staff to use the screwdriver to rotate the second adjustment end 422. Therefore, it is convenient for the staff to operate the adjustment member 420, so that the second adjustment end 422 abuts against the first limiting surface 414e or the second limiting surface 414f, so that the extension and retraction of the adjustment head 440 can be controlled, and then the distance between the first positioning portion 220 and the second positioning portion 320 can be adjusted.

[0045] In some embodiments, a plurality of adjustment mechanisms 400 are provided, and the plurality of adjustment mechanisms 400 adjust the distance between the first positioning portion 220 and the second positioning portion 320 differently. Thus, since the adjustment mechanism 400 adjusts the distance between the first positioning portion 220 and the second positioning portion 320 differently, the positioning device 10 can be adapted to workpieces of different models, thereby improving the adaptation range of the positioning device 10. Specifically, when the adjustment heads 440 of all adjustment mechanisms 400 are in a retracted state, the distance between the first positioning portion 220 and the second positioning portion 320 is the smallest. As the workpiece model changes, the adjustment heads 440 in the corresponding adjustment mechanism 400 can be controlled to be in an extended state, so that the first positioning portion 220 and the second positioning portion 320 are at a corresponding distance.

[0046] In some embodiments, the adjustment mechanism 400 may also be a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder, and the adjustment mechanism 400 may control the adjustment head 440 to be retracted or extended to a predetermined length.

[0047] In some embodiments, the outer circumference of the adjusting member 420 is provided with protruding teeth, the inner circumference of the through hole 414 is provided with a groove-shaped slide groove along the extension direction of the through hole, and the slide groove is provided with branches extending away from the first positioning mechanism 200 at multiple positions to form a clamping portion. The adjusting member 420 can be moved in a direction away from the first positioning mechanism 200 under the drive of the elastic member 430, so that the teeth on the adjusting member 420 slide along the slide groove in the slide groove, and when the teeth slide into the clamping portion, they are clamped and connected with the clamping portion. In this way, the clamping position of the adjusting member 420 and the through hole 414 can be adjusted, and then the extension and retraction of the adjusting head 440 from the adjusting cylinder 410 can be controlled, or the length of the adjusting head 440 extending from the adjusting cylinder 410 can be adjusted, that is, the distance between the first positioning portion 220 and the second positioning portion 320 can be adjusted.

[0048] In some embodiments, a slide rail 110 is provided on the base 100, and the first positioning mechanism 200 and the second positioning mechanism 300 are slidably connected to the slide rail 110. A fastener is provided on the first positioning mechanism 200 to fasten the first positioning mechanism 200 to the slide rail 110. Specifically, the fastener can be a bolt or other component. Thus, the position of the first positioning mechanism 200 on the slide rail 110 can be adjusted, and then when the adjustment head 440 of the adjustment mechanism 400 is in a retracted state, the distance between the first positioning portion 220 and the second positioning portion 320 can be adjusted. Thus, the adaptation range of the positioning device 10 can be further improved.

[0049] The above is an exemplary description of possible embodiments of the positioning device 10 in the present application. The present application also provides a fixture, the fixture in the present application includes the positioning device 10, and the positioning device 10 can be any possible implementation form of the positioning device 10 described above, which will not be described in detail.

[0050] Below, in conjunction with the accompanying drawings, the specific structure of the positioning device 10 in the present application is described in detail in a specific embodiment.

[0051] Figure 1 Schematic diagram of the three-dimensional structure of the positioning device 10 in the present application. When the clamp in the present application clamps the workpiece in the vehicle hydraulic control unit, the positioning device 10 in this embodiment is used to position the workpiece. Figure 1As shown, the positioning device 10 in the present application includes a base 100, a first positioning mechanism 200, a second positioning mechanism 300 and an adjustment mechanism 400. Among them, the first positioning mechanism 200 is arranged on the base 100, and has a first positioning portion 220, which is used to be plugged and connected with the first positioning hole on the workpiece. The second positioning mechanism 300 is arranged on the base 100, and has a second positioning portion 320, which is used to be plugged and connected with the second positioning hole on the workpiece. The positioning device 10 realizes the positioning of the workpiece through the cooperation between the first positioning portion 220, the second positioning portion 320 and the first positioning hole and the second positioning hole on the workpiece. The adjustment mechanism 400 is arranged on the second positioning mechanism 300, and is used to adjust the distance between the first positioning portion 220 and the second positioning portion 320. Since there are various types of vehicle hydraulic control units, the distances between the first positioning hole and the second positioning hole on the workpiece in different types of vehicle hydraulic control units are different. When the press-fitting equipment changes the type of vehicle hydraulic control unit, the positioning device 10 in this embodiment can adjust the distance between the first positioning portion 220 and the second positioning portion 320 through the adjustment mechanism 400. Therefore, when the type of the workpiece is changed, the adjustment time of the equipment can be reduced, and the production efficiency can be improved.

[0052] Figure 2 for Figure 1 A cross-sectional view of the positioning device 10 in one direction. Figure 1 , Figure 2 As shown, a slide rail 110 is disposed on the base 100, and the slide rail 110 is disposed in the vertical direction. The first positioning mechanism 200 is slidably connected to the slide rail 110 and disposed at the lower position of the slide rail 110. The second positioning mechanism 300 is slidably connected to the slide rail 110 and disposed at the upper position of the slide rail 110.

[0053] like Figure 1 , Figure 2 As shown, the first positioning mechanism 200 includes a first mounting plate 210, a first positioning portion 220 and a fastener. The rear surface of the first mounting plate 210 is slidably connected to the slide rail 110, and the fastener is arranged on the first mounting plate 210. When the first mounting plate 210 slides to a predetermined position along the slide rail 110, the first mounting plate 210 can be fastened to the slide rail 110 by the fastener. Two first positioning portions 220 are provided, which are respectively arranged at the left and right ends of the first mounting plate 210 and are at the same height position on the first mounting plate 210. The first positioning portion 220 is a cylindrical component, extending forward horizontally along the front-back direction. The first positioning portion 220 is threadedly connected to the first mounting plate 210, so that the first mounting portion 412b can be easily replaced when it is worn. Alternatively, when the workpiece model changes and the size of the first positioning hole changes, it is convenient to replace the first positioning portion 220.

[0054] like Figure 1, Figure 2 As shown, the second positioning mechanism 300 includes a second mounting plate 310 and a second positioning portion 320. The rear surface of the second mounting plate 310 is slidably connected to the slide rail 110, and the second positioning portion 320 is arranged in the middle of the front surface of the second mounting plate 310. One end of the second positioning portion 320 is a cylindrical component, extending forward in the horizontal direction. The other end of the second positioning portion 320 is a square block component, which can be fixed to the second mounting plate 310 by bolts.

[0055] like Figure 1 , Figure 2 As shown, the adjustment mechanism 400 is fixedly arranged on the second mounting plate 310, and the adjustment mechanism 400 includes an adjustment cylinder 410, an adjustment member 420, an elastic member 430 and an adjustment head 440. Among them, the adjustment member 420 is arranged in the adjustment cylinder 410 and can move up and down in the adjustment cylinder 410. The adjustment head 440 is arranged at the lower end of the adjustment member 420, and can be extended and retracted from the adjustment cylinder 410 as the adjustment member 420 moves up and down. The elastic member 430 is a spring, which is sleeved on the adjustment member 420 and is used to drive the adjustment member 420 to move upward.

[0056] like Figure 1 , Figure 2 As shown, the adjustment cylinder 410 includes a first cylinder body 411 and a second cylinder body 412. The first cylinder body 411 is fixedly arranged on the second mounting plate 310, and a vertical circular mounting hole 413 is arranged in the first cylinder body 411. The mounting hole 413 is a three-layer stepped hole, and the aperture of the stepped hole increases upward.

[0057] Figure 3 for Figure 2 A perspective structural diagram of the second barrel 412; Figure 4 for Figure 3 The sectional view of the second barrel 412 with the axis center facing the front and left sides. Figure 2-Figure 4 As shown, the second barrel 412 includes an insertion portion 412a at the lower end and a mounting portion 412b at the upper end. The insertion portion 412a is cylindrical, adapted to the size of the uppermost stepped hole of the mounting hole 413, and can be inserted into the mounting hole 413. The mounting portion 412b is square, adapted to the shape of the first barrel 411, and after the insertion portion 412a is inserted into the mounting hole 413, the mounting portion 412b can be fixed to the first barrel 411 using bolts.

[0058] like Figure 2-Figure 4As shown, a through hole 414 extending in the vertical direction is provided in the regulating cylinder 410, and an adjusting member 420 is arranged in the through hole 414, and an adjusting head 440 is arranged on the lower end surface of the adjusting member 420. The adjusting member 420 can move up and down in the through hole 414, so that the adjusting head 440 can be extended or retracted by the regulating cylinder 410. Specifically, the through hole 414 includes a fourth hole section 414d, a first hole section 414a, a second hole section 414b and a third hole section 414c connected sequentially from bottom to top. Wherein, the third hole section 414c is a circular hole, located at the upper part in the second barrel body 412, and an opening is formed at the upper end of the regulating cylinder 410. The second hole section 414b is a flat hole, which is adapted to the shape of the second regulating end 422 described below, and is arranged at the middle position in the second barrel body 412. The third hole section 414c and the second hole section 414b form a second limiting surface 414f facing downwards at the connection position, and the second regulating end 422 described below extends into the second hole section 414b and abuts against the second limiting surface 414f. The first hole section 414a is a circular hole and is divided into two parts, the upper half is located at the lower part of the second barrel 412, and the lower half is a stepped hole in the middle position of the first barrel 411. The first hole section 414a and the second hole section 414b form a first limiting surface 414e facing downwards at the connection position, and the second regulating end 422 described below is pushed into the first hole section 414a by the second hole section 414b and abuts against the first limiting surface 414e after rotation. The fourth hole section 414d is a circular hole, which is a stepped hole in the lower position of the first barrel 411, and forms an opening at the lower end of the regulating barrel 410. The fourth hole section 414d and the first hole section 414a form a third limiting surface 414g facing upward at the connection position. The diameter of the first hole section 414a is adapted to the diameter of the elastic member 430. The elastic member 430 is arranged in the first hole section 414a, and the lower end of the elastic member 430 abuts against the third limiting surface 414g.

[0059] Figure 5 for Figure 2 A schematic diagram of the three-dimensional structure of the middle adjustment member 420, the elastic member 430 and the adjustment head 440. Figure 5 As shown, the adjusting member 420 includes a first adjusting end 421 and a second adjusting end 422. The first adjusting end 421 is cylindrical, the second adjusting end 422 is flat, the axis of the first adjusting end 421 coincides with the center line of the second adjusting end 422, and the adjusting head 440 is arranged on the end surface of the first adjusting end 421. Looking from bottom to top, at the connection position between the first adjusting end 421 and the second adjusting end 422, the second adjusting end 422 is exposed from the range of the first adjusting end 421, forming a fourth limiting surface 423 facing downward. The elastic member 430 is a spring in a compressed state, which is sleeved on the first adjusting end 421, and the upper end of the elastic member 430 abuts against the fourth limiting surface 423.

[0060] like Figure 5As shown, a straight groove 424 is provided on the upper end surface of the second adjustment end 422. A straight screwdriver is used to insert the end of the screwdriver into the groove 424 to drive the second adjustment end 422 to rotate. A threaded hole is provided on the lower end surface of the first adjustment end 421. The upper end of the adjustment head 440 is provided in the threaded hole and is threadedly connected to the threaded hole of the first adjustment end 421.

[0061] As described above, when the adjustment head 440 needs to be retracted, the second adjustment end 422 can be driven to rotate by a screwdriver so that the second adjustment end 422 is aligned with the second hole section 414b of the through hole 414. At this time, the adjustment member 420 moves upward under the drive of the elastic member 430, so that the upper end surface of the second adjustment end 422 abuts against the second limiting surface 414f, so that the adjustment head 440 is retracted into the through hole 414 of the adjustment cylinder 410. In this way, the second positioning mechanism 300 can be placed in the lowest position, so that the first positioning portion 220 and the second positioning portion 320 are adapted to the same model of workpiece.

[0062] When the adjustment head 440 needs to be extended, the second adjustment end 422 can be pushed by a screwdriver, and the second adjustment end 422 can be pushed from the second hole section 414b of the through hole 414 into the first hole section 414a. Then, the second adjustment end 422 is rotated by a screwdriver to stagger the second adjustment end 422 with the second hole section 414b of the through hole 414, and after loosening, the adjustment member 420 moves upward under the drive of the elastic member 430, so that the upper end surface of the second adjustment end 422 abuts against the first limiting surface 414e, so that the adjustment head 440 extends downward from the lower end of the adjustment cylinder 410. In this way, the adjustment head 440 can abut against the first mounting plate 210, push the second mounting mechanism to move upward on the slide rail 110, and make the first positioning portion 220 and the second positioning portion 320 in a position adapted to another type of workpiece.

[0063] like Figure 1 , Figure 2 As shown, two adjustment mechanisms 400 are provided, which are respectively arranged at the two sides of the second mounting plate 310. When the two adjustment mechanisms 400 are in the extended state, the extension lengths of the adjustment heads 440 are different, so that the distances between the corresponding first positioning parts 220 and the second positioning parts 320 are different, that is, different types of workpieces can be adapted. In this way, the number of types of workpieces that the positioning device 10 can adapt to can be increased.

[0064] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present application is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may also include more other equivalent embodiments without departing from the concept of the present invention, all of which belong to the protection scope of the present invention.

Claims

1. A positioning device, characterized in that: include: Pedestal; A first positioning mechanism, the first positioning mechanism is arranged on the base and has a first positioning portion; A second positioning mechanism, the second positioning mechanism is slidably connected to the base along a first direction, and the second positioning mechanism can approach and move away from the first positioning mechanism by sliding relative to the base along the first direction, and the second positioning mechanism has a second positioning portion; The adjusting mechanism is arranged on the second positioning mechanism, and the adjusting mechanism has an adjusting head that can be extended and retracted. When the adjusting head is extended, it abuts against the first positioning mechanism to adjust the distance between the first positioning part and the second positioning part.

2. The positioning device according to claim 1, characterized in that: The regulating mechanism comprises: an adjusting cylinder, wherein the adjusting cylinder is fixedly disposed on the second positioning mechanism, a through hole is disposed in the adjusting cylinder, and the through hole extends along the first direction; The adjusting member is arranged in the through hole and can move in the through hole along the first direction. The adjusting member is engaged with the through hole at multiple positions in the through hole. The adjusting head is arranged at one end of the adjusting member facing the first positioning mechanism.

3. The positioning device according to claim 2, characterized in that: The adjusting member comprises a first adjusting end and a second adjusting end, the first adjusting end is cylindrical, the second adjusting end is flat, the axis of the first adjusting end coincides with the center line of the second adjusting end, and the adjusting head is arranged on the end surface of the first adjusting end; The through hole includes a first hole segment, a second hole segment and a third hole segment which are connected in sequence along a direction away from the first positioning mechanism. The first hole segment and the third hole segment are circular holes. The shape of the second hole segment is adapted to the shape of the second adjustment end. The connecting positions of the second hole segment and the first hole segment and the third hole segment are respectively provided with a first limiting surface and a second limiting surface facing the first positioning mechanism. After the second adjustment end enters the first hole segment, it can rotate around the axis of the first hole segment.

4. The positioning device according to claim 3, characterized in that: The regulating mechanism also includes: An elastic member is disposed in the through hole and drives the adjusting member to move in a direction away from the first positioning mechanism.

5. The positioning device according to claim 4, characterized in that: The through hole also includes a fourth hole segment, the fourth hole segment is connected to the first hole segment, and a third limiting surface facing away from the first positioning mechanism is provided at the connecting position of the fourth hole segment and the first hole segment; the elastic member is a spring, and the elastic member is sleeved on the first adjusting end, with one end abutting against the second adjusting end and the other end abutting against the third limiting surface.

6. The positioning device according to claim 3, characterized in that: The end surface of the second adjusting end is provided with a groove, and the shape of the groove is matched with the shape of the end of the screwdriver.

7. The positioning device according to any one of claims 1 to 6, characterized in that: A plurality of the adjustment mechanisms are provided, and the plurality of adjustment mechanisms adjust the distance between the first positioning portion and the second positioning portion to be different.

8. The positioning device according to any one of claims 1 to 6, characterized in that: The base is provided with a slide rail, the first positioning mechanism and the second positioning mechanism are slidably connected with the slide rail, and the first positioning mechanism is provided with a fastener to fasten the first positioning mechanism with the slide rail.

9. A clamp, characterized in that: The invention comprises the positioning device according to any one of claims 1 to 8.

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