Positioning clamp

Abstract

The utility model relates to a positioning clamp. The positioning clamp can comprise a hinge assembly, a push rod assembly, a reinforcing plate, a lower base, a hinge assembly positioning block, an upper base, a push rod positioning block and an upper positioning block. A corresponding lower base limiting groove is formed in the lower base, and the lower base limiting groove is used for fixing the hinge assembly positioning block; the hinge assembly positioning block is connected with the hinge assembly, and the hinge assembly positioning block is used for positioning the hinge assembly; an upper base limiting groove is formed in the upper base and is used for fixing the push rod positioning block and the upper positioning block; the push rod positioning block is arranged on the push rod positioning block and used for positioning the push rod assembly. The reinforcing plate is arranged on the upper positioning block, and the upper positioning block is used for positioning the reinforcing plate. According to the technical scheme provided by the utility model, each part of the fixture can be accurately positioned, and the mounting efficiency of the positioning fixture is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to range hood tooling technical field especially relates to a positioning fixture. BACKGROUND

[0002] The tooling assembly in the current range hood production process, since the tooling assembly contains numerous components, needs the operating personnel to carry out the positioning and assembly to the key assembly, this process is not only cumbersome, makes the installation efficiency is relatively lower, and cannot realize the single person independent completion positioning and installation, further influence normal batch production assembly, lead to the production efficiency decline and the improvement of manual cost. UTILITY MODEL CONTENT

[0003] The utility model provides a positioning fixture to solve at least how to improve positioning accuracy etc.

[0004] The technical scheme of the utility model is as follows:

[0005] According to the first aspect of the utility model embodiment, provide a kind of positioning fixture, including hinge assembly, push rod assembly, reinforcing plate, lower base, hinge assembly positioning block, upper base, push rod positioning block, upper positioning block;

[0006] The lower base is provided with corresponding lower base limiting slot, and the lower base limiting slot is used to fix the hinge assembly positioning block;The hinge assembly positioning block is connected with the hinge assembly, and the hinge assembly positioning block is used to position the hinge assembly;

[0007] The upper base is provided with upper base limiting slot, and the upper base limiting slot is used to fix the push rod positioning block and upper positioning block;The push rod assembly is arranged on the push rod positioning block, and the push rod positioning block is used to position the push rod assembly;The reinforcing plate is arranged on the upper positioning block, and the upper positioning block is used to position the reinforcing plate.

[0008] In a possible implementation manner, the positioning fixture further includes a stand column;The lower base is further provided with a first stand column limiting slot, and the upper base is further provided with a second stand column limiting slot, one end of the stand column is connected with the first stand column limiting slot, and the other end of the stand column is connected with the second stand column limiting slot.

[0009] In a possible implementation, the hinge assembly positioning block comprises a bracket, a rear positioning block, an inclined support block and a left positioning block; the hinge assembly positioning block is provided with a rear positioning block limiting groove, an inclined support block limiting groove and a left positioning block limiting groove; the lower base limiting groove is connected with the bracket; the rear positioning groove is connected with the rear positioning block; the inclined support block limiting groove is connected with the inclined support block; and the left positioning block is connected with the left positioning block limiting groove.

[0010] In a possible implementation, the inclined support block is coincident with the bottom of the hinge assembly.

[0011] In a possible implementation, the rear positioning block is provided with a first adjustable square block, and the left positioning block is provided with a second adjustable square block; the first adjustable square block and the second adjustable square block are used for adjusting the position of the hinge assembly.

[0012] In a possible implementation, the positioning clamp further comprises a motion shaft, and the upper positioning block is further used for positioning the motion shaft; the motion shaft is sleeved with the push rod assembly.

[0013] In a possible implementation, the reinforcing plate is provided with a screw hole, and one end of the hinge assembly is fixedly connected with the reinforcing plate through the screw hole.

[0014] In a possible implementation, the upper Dwyer is provided with a third adjustable square block, and the third adjustable square block is used for adjusting the position of the reinforcing plate.

[0015] In a possible implementation, two direction through holes are formed in the middle of the lower base.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, but not limiting the utility model.

[0017] The technical scheme provided by the embodiment of the utility model brings at least the following beneficial effects:

[0018] By setting the hinge assembly positioning block, the push rod positioning block and the upper positioning block, the precise positioning of the hinge assembly, the push rod assembly and the reinforcing plate is realized.

[0019] The lower base is provided with a corresponding lower base limiting groove for fixing the hinge assembly positioning block; the upper base is provided with an upper base limiting groove for fixing the push rod positioning block and the upper positioning block; the setting of the upper base limiting groove and the lower base limiting groove can make the installation and disassembly of the positioning clamp more convenient, improve the production efficiency; and meanwhile, the labor cost can be reduced.

[0020] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, and the advantages thereof, simple introduction to the drawings needed to be used in the embodiments or the prior art description will be given below. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0022] Figure 1 is a structural diagram of a positioning clamp according to an exemplary embodiment.

[0023] Figure 2 is a structural diagram of a lower base of a positioning clamp according to an exemplary embodiment.

[0024] Figure 3 is a structural diagram of a positioning block of a positioning clamp according to an exemplary embodiment.

[0025] Figure 4 is a structural diagram of an upper base of a positioning clamp according to an exemplary embodiment.

[0026] Figure 5 is a structural diagram of a reinforcing plate screw hole according to an exemplary embodiment.

[0027] In the drawings,

[0028] 1-lower base, 2-hinge assembly positioning block, 3-hinge assembly, 4-stand, 5-push rod assembly, 6-push rod positioning block, 7-upper positioning block, 8-reinforcing plate, 9-upper base, 10-bracket, 11-rear positioning block, 12-first adjustable square block, 13-inclined surface support block, 14-second adjustable square block, 15-left positioning block, 16-movement shaft, 17-screw hole, 18-first stand limiting groove, 19-lower base limiting groove, 20-third adjustable square block, 21-fourth adjustable square block. DETAILED DESCRIPTION

[0029] In order to make the ordinary personnel in the art better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0030] It should be noted that the terms "first", "second", and the like in the description and in the claims of the utility model of the present application and the above-mentioned drawings are used to distinguish similar objects and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or server including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0031] Various exemplary embodiments, features and aspects of the utility model will be described in detail below with reference to the accompanying drawings. The same reference signs in the drawings represent functionally identical or similar elements. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0032] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. The term "and / or" used in the present text is used to associate at least one of the associated objects, or any combination of at least two of the associated objects. For example, the expression "A and / or B" means only A, only B, or both A and B. In addition, the term "at least one of" in the present text means any one of the plurality or at least two of the plurality in any combination, for example, including at least one of A, B, and C means any one or more elements selected from the set consisting of A, B, and C.

[0033] In the absence of special instructions, the direction in the present text should be understood in the following way: the direction close to the user is front, and the direction away from the user is back.

[0034] In addition, in order to better illustrate the utility model, a large number of specific details are given in the specific embodiments below. Those skilled in the art should understand that the utility model can also be implemented without some specific details. In some examples, methods, means, elements and circuits familiar to those skilled in the art are not described in detail, in order to highlight the main idea of the utility model.

[0035] It should be noted that the following figure shows a possible sequence of steps, which does not necessarily limit the strict order of execution. Some steps can be executed in parallel without mutual dependence. The user information (including but not limited to user equipment information, user personal information, user behavior information, etc.) and data (including but not limited to data for display, training data, etc.) involved in the present application are all information and data authorized by the user or fully authorized by all parties.

[0036] The positioning fixture of the range hood is a tool for fixing and positioning the range hood during the production process of the range hood, so as to ensure the accuracy of the range hood during the production and assembly process.

[0037] The working principle of the positioning fixture is that the workpiece is in contact, matched or aligned with the positioning working surface of the corresponding positioning element of the fixture, so that the workpiece occupies an accurate machining position in the fixture. At the same time, the fixture should first ensure an accurate relative position with the machine tool, and the fixture structure ensures the relative accurate position between the positioning working surface of the positioning element and the surface connecting the fixture and the machine tool, which ensures the accurate geometric position of the fixture positioning working surface relative to the cutting movement surface of the machine tool, thereby meeting the mutual position accuracy requirements of the workpiece machining surface and the positioning reference.

[0038] The positioning fixture generally consists of positioning elements, clamping devices and bases. Among them, the positioning element is used to determine the position of the moving tool, and common positioning elements include positioning pins, positioning blocks, positioning discs, etc. The clamping device is used to firmly fix the workpiece on the positioning element, and common clamping devices include mechanical clamping, hydraulic clamping, pneumatic clamping, etc. The base is used to install the positioning fixture on the machine tool or workbench, ensuring the stability and accuracy of the fixture.

[0039] Figure 1 It is a structural diagram of a positioning fixture according to an exemplary embodiment. As shown in Figure 1 The positioning fixture includes a plurality of positioning elements, including hinge assembly positioning block 2, push rod positioning block 6, and upper positioning block 7.

[0040] Two bases are further included in the positioning fixture, namely an upper base 9 and a lower base 1. The lower base 1 is a bottom support structure of the whole positioning fixture, is arranged at the lowermost of the positioning fixture, is usually made of metal or alloy material, and the utility model is not limited to this. A lower base limiting groove 19 is formed in the lower base 1, and the lower base limiting groove 19 corresponds to the bottom of the hinge assembly positioning block 2. Further, the hinge assembly positioning block 2 can be detachably connected with the lower base limiting groove 19. This arrangement can accurately limit the hinge assembly positioning block 2 on the lower base 1, and in the case that the hinge assembly positioning block 2 is worn, only the corresponding parts need to be replaced, thereby saving installation costs. A first bolt hole can be arranged in the lower base limiting groove 19. After the hinge assembly positioning block 2 is assembled and clamped with the lower base, the first bolt can be used to fixedly connect the hinge assembly positioning block 2 and the lower base limiting groove 19, thereby avoiding displacement or shaking of the positioning fixture during movement, and improving the positioning accuracy. The utility model is not limited to the above fixing method.

[0041] In the embodiment of the utility model, since the range hood is left-right symmetrical, the positioning fixture corresponding to the range hood can also be left-right symmetrical. This arrangement can usually enhance the stability of the positioning fixture and improve the assembly efficiency during the assembly of the positioning fixture. Correspondingly, a corresponding lower base limiting groove 19 is formed in each of the left and right sides of the lower base 1, and the positioning assembly further includes two hinge assembly positioning blocks of the same design. Further, the lower base limiting grooves 19 on the left and right sides are detachably connected with the corresponding hinge assembly positioning blocks 2, which can improve the manual assembly efficiency and reduce the manual assembly cost.

[0042] Similarly, a corresponding upper base limiting groove is also formed in the upper base 9. The upper base limiting groove includes two subparts, namely an upper positioning block limiting groove and a push rod limiting groove. The upper positioning block limiting groove is detachably connected with the upper positioning block 7, and the push rod limiting groove is detachably connected with the push rod positioning block 6. A second bolt hole can be arranged in the upper positioning block limiting groove. After the upper positioning block 7 is clamped in the upper positioning block limiting groove, the second bolt can be used to fixedly connect the upper positioning block limiting groove and the upper positioning block 7. The utility model is not limited to the above fixing method. A third bolt hole can also be arranged in the push rod limiting groove. After the push rod positioning block 6 is clamped in the push rod limiting groove, the third bolt can be used to fixedly connect the push rod limiting groove and the push rod positioning block 6. The utility model is not limited to the above fixing method. This arrangement can prevent the whole positioning fixture from sliding or falling off during movement or assembly of the range hood, thereby improving the stability of the whole positioning fixture and the positioning accuracy.

[0043] The positioning fixture is symmetrically arranged left and right, and further, symmetric upper positioning block limiting grooves and push rod limiting grooves are arranged on the left and right sides of the upper base 9, and correspondingly, the upper positioning block 7 and the push rod positioning block 6 in the positioning assembly also include symmetric left and right two. Further, the upper positioning block limiting grooves on the left and right sides are respectively detachably connected with the corresponding upper positioning block 7, and the push rod limiting grooves on the left and right sides are respectively detachably connected with the corresponding push rod positioning block 6.

[0044] Figure 2 It is a structural diagram of a lower base of a positioning fixture according to an exemplary embodiment. As shown in Figure 2 Figure 2 The lower base 1 is included in the positioning fixture, and two corresponding lower base limiting grooves 19 are respectively formed on the lower base 1. The positioning fixture further includes a stand 4, and a first stand limiting groove 18 is further formed on the lower base 1, and a second stand limiting groove is further arranged on the upper base 9. The first stand limiting groove 18 is detachably connected with one end of the stand 4, and the second stand limiting groove is detachably connected with the other end of the stand 4. In the case that the stand 4 is clamped and connected with the first stand limiting groove 18 and the second stand limiting groove respectively, at this time, the stand 4 is perpendicular to the lower base 1, and the stand 4 is also perpendicular to the upper base 9. This arrangement can make the connection of the upper base 9 more stable. Four stands 4 can be arranged in the present application, and one stand 4 is arranged at each of the four corners of the upper base 9. This arrangement can enhance the stability and supportability of the positioning fixture as a whole, and can enable the operator to quickly limit the stand 4, thereby improving the assembly efficiency of the stand 4.

[0045] A fourth bolt hole is formed on the first stand limiting groove 18, and a fifth bolt hole is also formed on the second stand limiting groove. After the stand 4 is clamped and connected with the first stand limiting groove 18, the fourth bolt is used to fix the stand 4 and the first stand limiting groove 18 through the fourth bolt hole, so as to ensure the firm connection therebetween. Similarly, after the stand 4 is clamped and connected with the second stand limiting groove, the fifth bolt is used to fix the stand 4 and the second stand limiting groove through the fifth bolt hole. This arrangement enables the stand 4 to stably support the upper base 9, and the arrangement of four stands 4 can provide sufficient stability and supportability for the upper base 9 of the positioning assembly.

[0046] Two square through holes are further formed in the middle of the lower base 1. The arrangement of the two square through holes can reduce the overall weight and material cost of the positioning fixture while meeting the requirements of stability and strength of the positioning fixture, so as to facilitate the taking, placing and moving of the positioning fixture as a whole. The specific size of the square through hole is not limited in the present application.

[0047] Figure 3 It is a structural diagram of a positioning block of a positioning fixture according to an exemplary embodiment. As shown in Figure 3 ​As shown, the hinge assembly positioning block 2 fixedly connected with the lower base 1 comprises a bracket 10, a rear positioning block 11, a left positioning block 15 and an inclined support block 13. The bracket 10 comprises a transverse long strip block and a longitudinal long strip block, a corresponding transverse long strip block limiting groove is formed at the upper end of the longitudinal long strip block, the transverse long strip block is clamped with the longitudinal long strip block, a corresponding sixth bolt hole is formed in the transverse long strip block limiting groove, the transverse long strip block and the longitudinal long strip block are fixedly connected through the sixth bolt, and the bracket 10 is formed. The bracket 10 is detachably connected with the lower base limiting groove 19. Corresponding rear positioning block limiting grooves, inclined support block limiting grooves and left positioning block limiting grooves are formed in the transverse long strip block of the bracket 10. Correspondingly, the rear positioning block limiting grooves are detachably connected with corresponding rear positioning blocks 11, the inclined support block limiting grooves are detachably connected with corresponding inclined support blocks 13, and the left positioning block limiting grooves are detachably connected with corresponding left positioning blocks 15.

[0048] Corresponding seventh bolt holes are formed in the rear positioning block limiting grooves, corresponding eighth bolt holes are formed in the inclined support block limiting grooves, and corresponding ninth bolt holes are formed in the left positioning block limiting grooves. Further, after the rear positioning block limiting grooves are clamped with the rear positioning blocks 11, the seventh bolt is used for fixing the rear positioning block limiting grooves and the rear positioning blocks 11; after the inclined support block limiting grooves are clamped with the inclined support blocks 13, the eighth bolt is used for fixing the inclined support block limiting grooves and the inclined support blocks 13; and after the left positioning block limiting grooves are clamped with the left positioning blocks 15, the ninth bolt is used for fixing the left positioning block limiting grooves and the left positioning blocks 15. The arrangement can improve the stability and accuracy of the hinge assembly positioning block 2 in the positioning clamp and can more accurately position the hinge assembly 3. The fixing mode between the limiting grooves and the positioning blocks is not limited.

[0049] Figure 4 It is a structure diagram of an upper base of a positioning clamp according to an example embodiment. As shown in the figure, Figure 4 Two grooves are formed in the upper positioning block 7 arranged on the upper base 9, which are a first groove and a second groove. The positioning clamp further comprises a motion shaft 16, a reinforcing plate 8 and a push rod assembly 5. The reinforcing plate 8 is used for enhancing the overall strength and stability of the positioning clamp, and the arrangement of the reinforcing plate 8 can ensure that the positioning clamp will not be deformed or damaged under the condition of bearing a load weight; the push rod assembly 5 is used for providing a pushing force or a pulling force, and is used for clamping a tool, adjusting the position of the clamp and the like. The motion shaft 16 is mainly used for transmitting and guiding the positioning clamp, and can accurately control the movement of the push rod assembly 5, so as to ensure that the push rod assembly 5 can move according to a preset path and mode.

[0050] The first recess of the upper positioning block 7 is detachably connected with the motion shaft 16, and the second recess of the upper positioning block 7 is detachably connected with the reinforcing plate 8. A third adjustable square block 20 is arranged in the second recess and is mounted on the upper positioning block 7 and can be finely adjusted in position. When the reinforcing plate 8 is inserted into the second recess, a gap exists between the reinforcing plate 8 and the second recess, and at this time, the third adjustable square block 20 can be adjusted to accurately position the reinforcing plate. The third adjustable square block 20 can be adjusted by threads, sliding rails or other mechanical structures, and the utility model is not limited in this regard.

[0051] After the motion shaft is assembled, the corresponding push rod assembly 5 is positioned on the push rod positioning block 6, one end of the push rod assembly 5 is connected to the inner side of the longitudinal long block of the support 10, and the one end of the push rod assembly 5 is fixed on the support 10 by screws. The connecting part of the push rod assembly 5 is arranged on the push rod positioning block 6 of the upper base 9, and a corresponding fourth adjustable square block 21 is further arranged on the push rod positioning block 6, and the fourth adjustable square block 21 can be used to adjust the positioning position or angle of the push rod assembly 5. The fourth adjustable square block 21 can enable the operator to accurately position and adjust the push rod assembly 5 according to different assembly requirements. The head part of the push rod assembly 5 is sleeved on the motion shaft 16, and specifically, the push rod assembly 5 is guided and controlled by the motion shaft 16 during operation, so that the positioning clamp can move along an accurate path.

[0052] The positioning clamp further comprises a hinge assembly 3, and one symmetrical hinge assembly 3 is arranged on each of the left and right sides of the positioning clamp in the utility model. After the push rod assembly 5 is installed, the hinge assembly 3 is further positioned and installed. Specifically, one end of the hinge assembly 3 is fixed on the hinge assembly positioning block 2, and the hinge assembly 3 and the hinge assembly positioning block 2 are arranged at an inclination, and the inclination angle is equal to the inclination angle of the inclined surface supporting block 13, that is, the lower end of the hinge assembly 3 coincides with the bottom of the inclined surface supporting block 13, and the inclination angle of the hinge assembly 3 is not limited in the utility model.

[0053] The right positioning block 15 positions the side of the hinge assembly 3, and the second adjustable square block 14 is arranged on the left positioning block 15. After the hinge assembly 3 is completely installed, the second adjustable square block 14 is used to fine-tune the hinge assembly 3, that is, the length of the second adjustable square block 14 is adjusted to accurately position the side of the hinge assembly 3. The head of the hinge assembly 3 is positioned by the rear positioning block 11, and the first adjustable square block 12 is arranged on the rear positioning block 11. After the hinge assembly 3 is completely installed, the length of the first adjustable square block 12 is adjusted to accurately position the head of the hinge assembly 3. The above arrangement can ensure the alignment accuracy between the hinge assembly 3 and the hinge assembly positioning block 2, so as to avoid performance problems and low production efficiency caused by low installation accuracy.

[0054] Figure 5 It is a structure diagram of reinforcing plate screw hole according to an exemplary embodiment. As shown in Figure 5 The reinforcing plate is provided with a plurality of screw holes 17, and the number of the screw holes 17 is not limited by the utility model. The other end of the hinge assembly 3 corresponds to the reinforcing plate 8, and the other end of the hinge assembly 3 is fixedly connected with the reinforcing plate 8 through the screw holes 17.

[0055] Other embodiments of the utility model will occur to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. The utility model is intended to cover any variations, uses or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice in the art to which the utility model pertains. The specification and examples are to be construed as merely illustrative of preferred embodiments of the utility model. The true scope and spirit of the utility model are indicated by the appended claims.

[0056] It should be understood that the utility model is not limited to the precise structures described herein and illustrated in the drawings and that various modifications and changes can be made by those skilled in the art without departing from the scope of the utility model. The scope of the utility model is indicated by the appended claims rather than by the description and figures.

Claims

1. A positioning fixture, characterized by, The hinge assembly, the push rod assembly, the reinforcing plate, the lower base, the hinge assembly positioning block, the upper base, the push rod positioning block, and the upper positioning block are included. The lower base is provided with a corresponding lower base limiting groove for fixing the hinge assembly positioning block. The upper base is provided with an upper base limiting groove for fixing the push rod positioning block and the upper positioning block.

2. The positioning fixture of claim 1, wherein The positioning clamp further includes a stand. The lower base is further provided with a first stand limiting groove, and the upper base is further provided with a second stand limiting groove.

3. The positioning fixture of claim 1, wherein The hinge assembly positioning block includes a bracket, a rear positioning block, an inclined surface supporting block, and a left positioning block. The hinge assembly positioning block is provided with a rear positioning block limiting groove, an inclined surface supporting block limiting groove, and a left positioning block limiting groove. The lower base limiting groove is connected with the bracket, the rear positioning block limiting groove is connected with the rear positioning block, the inclined surface supporting block limiting groove is connected with the inclined surface supporting block, and the left positioning block is connected with the left positioning block limiting groove.

4. The positioning fixture of claim 1, wherein The reinforcing plate is connected with one end of the hinge assembly, and the hinge assembly positioning block is used for positioning the other end of the hinge assembly.

5. The positioning fixture of claim 3, wherein The inclined surface supporting block coincides with the bottom of the hinge assembly.

6. The positioning fixture of claim 3, wherein The rear positioning block is provided with a first adjustable square block, and the left positioning block is provided with a second adjustable square block. The first adjustable square block and the second adjustable square block are used for adjusting the position of the hinge assembly.

7. The positioning fixture of claim 1, wherein The positioning clamp further includes a motion shaft, and the upper positioning block is further used for positioning the motion shaft.

8. The positioning fixture of claim 4, wherein The push rod assembly is sleeved on the motion shaft.

9. The positioning fixture of claim 1, wherein, The reinforcing plate is fixedly connected with one end of the hinge assembly through the screw hole.

10. The positioning fixture of claim 1, wherein, The upper positioning block is provided with a third adjustable square block, which is used for adjusting the position of the reinforcing plate. Two square through holes are formed in the middle of the lower base.

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