Clamping mechanism with pre-positioning function

Abstract

The utility model provides a clamping mechanism with a pre-positioning function, which comprises a first pre-positioning mechanism, a second pre-positioning mechanism, a third pre-positioning mechanism, a clamping mechanism and a limiting assembly, and the first pre-positioning mechanism pushes a translation assembly through a first manual rod assembly; the second pre-positioning mechanism is matched with the first bolt through a bolt positioning seat and is matched with the second bolt through a sleeve of a pre-positioning bolt seat; the third pre-positioning mechanism pushes a third bolt through a second cylinder; two ends of a pressing rod of the clamping mechanism are respectively matched with the first bolt and the second bolt through pressing heads; according to the utility model, accurate pre-positioning is realized through the first pre-positioning mechanism, the second pre-positioning mechanism and the third pre-positioning mechanism, and accurate matching of components in processes of assembling, positioning, welding and the like is ensured; the stable positioning function is achieved through the bolt positioning base, the first bolt, the pre-positioning bolt base, the second bolt, the second air cylinder, the third bolt and other assemblies, the quality of the connecting technology is remarkably improved, and the uniformity of a welding seam and the stability of a connector are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a clamping mechanism with a pre-positioning function. Background Art

[0002] In the current industrial production field, especially in the automotive manufacturing industry, with the continuous advancement and deepening of industrial intelligence, the traditional manual operation mode is being replaced by automated or semi-automated production lines. The main purpose of this transformation is to improve production efficiency, reduce costs, ensure product quality and adapt to the rapid changes in market demand; automated production line integration is a comprehensive process, in which automated production fixtures play a vital role; these fixtures are used to ensure the precise matching of components in assembly, positioning, welding and other processes, thus becoming a key factor in ensuring the smooth progress of the production process.

[0003] However, there are several problems with existing fixture systems. First, in order to realize the function of the fixture, a large number of auxiliary components are usually required, such as stops, guide rails, etc., which not only increases the complexity of the system, but also means more cost investment and potential failure points. Secondly, the complex fixture design and numerous auxiliary parts lead to an increase in the overall manufacturing cost, because each additional component needs to be designed, manufactured, purchased and installed, which will have an impact on the overall budget. In addition, the existing fixtures perform poorly in ensuring the stable positioning of parts, resulting in the quality of welding or other connection processes cannot be guaranteed. Inconsistent positioning may cause uneven welds and unstable joint quality, thus affecting the performance and safety of the final product.

[0004] Since tooling and fixtures usually require manual placement and adjustment of parts, this is not only time-consuming but also inefficient and can easily become a bottleneck in production. Manual operation may cause component position deviations, which in turn affects the assembly quality and consistency of the final product. In addition, this method increases the reliance on highly skilled labor and training costs. At the same time, the close contact between the operator and the machine when manually positioning and fixing parts increases safety risks at work. Existing tooling and fixture systems are often designed for specific parts and have poor adaptability. When producing different models or design changes, the fixture may need to be replaced or adjusted. Manual inspection methods are prone to errors and are inefficient, resulting in substandard quality control, increased rework and scrap rates. Pre-positioning systems can achieve fast and accurate part positioning and fixation, thereby improving the degree of automation, improving production efficiency, reducing reliance on manpower, enhancing product quality control, and improving the overall production environment. Utility Model Content

[0005] The purpose of the utility model is to provide a clamping mechanism with a pre-positioning function, aiming to solve the problems that the existing tooling and clamping system has high complexity, high cost, insufficient positioning accuracy, poor adaptability and inconvenience in placing and adjusting workpieces in the production line, which affects the production efficiency and product quality and increases the production cost.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A clamping mechanism with a pre-positioning function is provided, comprising:

[0008] A first pre-positioning mechanism, wherein the first pre-positioning mechanism comprises a translation assembly, one side of the translation assembly is connected to a first manual rod assembly, the upper part of the translation assembly is connected to a second pre-positioning mechanism via a support seat, and the upper part of the translation assembly is also connected to a positioning block assembly;

[0009] A second pre-positioning mechanism, the second pre-positioning mechanism includes a latch positioning seat and a pre-positioning latch seat, a first latch is arranged above the latch positioning seat, the first latch sequentially penetrates the second workpiece and one end of the first workpiece, the pre-positioning latch seat is connected to the support seat, one end of the pre-positioning latch seat is connected to a first cylinder, the first cylinder is connected to a second manual rod assembly, the pre-positioning latch seat is a hollow structure, so that the cylinder rod of the first cylinder is penetrated in the pre-positioning latch seat and connected with a sleeve, the sleeve penetrates the other end of the pre-positioning latch seat, the sleeve is penetrated with a second latch, and the second latch sequentially penetrates the second workpiece and one end of the first workpiece;

[0010] A third pre-positioning mechanism, the third pre-positioning mechanism is fixedly arranged on one side of the translation assembly, the third pre-positioning mechanism includes a second cylinder, the cylinder rod of the second cylinder is connected to a push plate, the push plate is connected to a third latch through a side latch seat, the third latch passes through the side of the first workpiece and is penetrated in the positioning block assembly, and one side of the push plate is connected to a third manual rod assembly;

[0011] A clamping mechanism, wherein the clamping mechanism is connected to a pressure rod, and two ends of the pressure rod are connected to pressure heads corresponding to the first latch and the second latch respectively;

[0012] A limit assembly, wherein the limit assembly is arranged opposite to the translation assembly, the limit assembly includes a limit seat and a fixed pressure block and a limit block connected to the limit seat, the fixed pressure block is arranged corresponding to the positioning pressure block assembly, and the other end of the first workpiece is pressed by the fixed pressure block and the positioning pressure block assembly, and the limit block is arranged opposite to the translation assembly.

[0013] Preferably, the translation assembly includes a slide rail and a base plate connected to the top of the slide rail, one side of the base plate is connected to the first manual rod assembly, the first manual rod assembly includes a fixed first support and a translation cylinder, the first support is rotatably connected to the first manual rod, the first manual rod is connected to a moving part through a first connecting rod, the moving part is connected to one side of the base plate, the translation cylinder is arranged at the bottom of the slide rail, and the translation cylinder is connected to the base plate through a connecting part.

[0014] Preferably, the positioning pressure block assembly includes a fixing member, a limiting pressure block and a translation pressure block, the fixing member is connected to the top of the translation assembly, the limiting pressure blocks are respectively connected to both sides of the fixing member, and the translation pressure block is connected to the side of the fixing member facing the first workpiece.

[0015] Preferably, the second manual rod assembly includes a second support member connected to the first cylinder, the second support member is rotatably connected to a second manual rod, and a middle portion of the second manual rod is rotatably connected to a cylinder rod of the first cylinder.

[0016] Preferably, the clamping mechanism comprises a fixedly arranged clamping cylinder, wherein a pin is passed through the clamping cylinder along the width direction, and pressure arms are connected through both ends of the pin, and the pressure arms are connected to the middle portion of the pressure rod.

[0017] Preferably, the first latch and the second latch are both T-shaped structures, one end of the first latch and the second latch are respectively in contact with the pressure head, the other end of the first latch passes through the second workpiece and the first workpiece in sequence and is placed on the latch positioning seat, and the other end of the second latch passes through the second workpiece and the first workpiece in sequence and is passed through the pre-positioning latch seat.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The clamping mechanism with a pre-positioning function provided by the utility model realizes multi-directional and multi-level precise pre-positioning by integrating the first, second and third pre-positioning mechanisms, thereby ensuring highly precise matching of components in processes such as assembly, positioning and welding; a stable positioning function is realized by components such as the latch positioning seat and the first latch, the pre-positioning latch seat and the second latch, and the second cylinder and the third latch, which significantly improves the quality of the connection process (such as welding), ensures the uniformity of the weld and the stability of the joint, and further improves the performance and safety of the final product; the first, second and third pre-positioning mechanisms can be used to quickly adjust to different product models or product design changes, providing better adaptability and flexibility, reducing production delays caused by replacing or adjusting the fixture, and the pre-positioning function makes the placement and adjustment of parts faster and more accurate, reducing the errors and inefficiency of manual inspection methods, thereby improving production efficiency and quality control standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 It is a three-dimensional diagram of the utility model;

[0023] Figure 3 It is the front view of the utility model;

[0024] Figure 4 It is a partial top view of the utility model.

[0025] In the figure: 1, first pre-positioning mechanism; 2, translation assembly; 3, first manual rod assembly; 4, support seat; 5, second pre-positioning mechanism; 6, latch positioning seat; 7, pre-positioning latch seat; 8, first latch; 11, first cylinder; 12, second manual rod assembly; 13, sleeve; 14, second latch; 15, third pre-positioning mechanism; 16, second cylinder; 17, push plate; 18, side latch seat; 19, third latch; 20, positioning pressure block assembly; 21, pressure rod; 22, pressure head; 23 , limit assembly; 24, limit seat; 25, fixed pressure block; 26, limit block; 27, slide rail; 28, bottom plate; 29, moving part; 30, connecting part; 31, fixed part; 32, limit pressure block; 33, translation pressure block; 34, clamping mechanism; 35, clamping cylinder; 36, pin shaft; 37, pressure arm; 38, first support member; 39, translation cylinder; 40, first manual rod; 41, first connecting rod; 42, second support member; 43, second manual rod; 44, third manual rod assembly. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0029] Combine the following Figures 1 to 4 The clamping mechanism 34 with a pre-positioning function of the present invention is described.

[0030] like Figures 1 to 4 As shown, the utility model provides a clamping mechanism with a pre-positioning function, comprising:

[0031] The first pre-positioning mechanism 1 includes a translation assembly 2, a first manual rod assembly 3 is connected to one side of the translation assembly 2, a second pre-positioning mechanism 5 is connected to the upper side of the translation assembly 2 through a support seat 4, and a positioning block assembly 20 is also connected to the upper side of the translation assembly 2. The first manual rod assembly 3 is combined with the translation assembly 2, so that the first manual rod assembly 3 can manually control the translation assembly 2 to realize the positioning block assembly 20 and the second pre-positioning mechanism 5 to translate, clamp and position the first workpiece a, thereby enhancing the accuracy and reliability of positioning;

[0032] The second pre-positioning mechanism 5 includes a latch positioning seat 6 and a pre-positioning latch seat 7. A first latch 8 is arranged above the latch positioning seat 6. The first latch 8 passes through one end of the second workpiece b and the first workpiece a in sequence. The pre-positioning latch seat 7 is connected to the support seat 4. One end of the pre-positioning latch seat 7 is connected to the first cylinder 11. The first cylinder 11 is connected to the second manual rod assembly 12. The pre-positioning latch seat 7 is a hollow structure, so that the cylinder rod of the first cylinder 11 is penetrated in the pre-positioning latch seat 7 and connected with a sleeve 13. The sleeve 13 passes through the other end of the pre-positioning latch seat 7. The sleeve 13 is penetrated with a second latch 14. The second latch 14 The second workpiece b and one end of the first workpiece a are sequentially penetrated, and the first latch 8 and the second latch 14 can realize accurate positioning of the first workpiece a and the second workpiece b, greatly improving the stability and accuracy of positioning, ensuring high-quality welding or assembly, and the addition of the second manual rod assembly 12 enables the pre-positioning latch seat 7 to be manually adjusted. The second manual rod assembly 12 is combined with the first cylinder 11, and the lever principle is used, which is labor-saving and easy to drive. Through multiple latches and manual adjustment functions, it can adapt to workpieces of different sizes, shapes and types, which helps to reduce processing errors, reduce rework rate and scrap rate, and thus improve the quality of the final product;

[0033] The third pre-positioning mechanism 15 is fixedly arranged on one side of the translation assembly 2. The third pre-positioning mechanism 15 includes a second cylinder 16. The cylinder rod of the second cylinder 16 is connected to a push plate 17. The push plate 17 is connected to a third latch 19 through a side latch seat 18. The third latch 19 passes through the side of the first workpiece a and is arranged in the positioning block assembly 20. One side of the push plate 17 is connected to a third manual rod assembly 44. The third pre-positioning mechanism 15 drives the push plate 17 through the second cylinder 16 to achieve accurate positioning of the side of the first workpiece a. Combined with the actions of the first and second pre-positioning mechanisms 5, the third pre-positioning mechanism 15 further improves the positioning accuracy of the overall system. The third pre-positioning mechanism 15 can use the lever principle through the third manual rod assembly 44 to manually adjust the positioning of the third latch 19 with less effort, thereby reducing the rework and adjustment time caused by inaccurate positioning, making the entire production process smoother and faster;

[0034] The clamping mechanism 34 is connected with a pressure rod 21, and the two ends of the pressure rod 21 are connected with pressure heads 22 corresponding to the first latch 8 and the second latch 14 respectively. The pressure rod 21 of the clamping mechanism 34 cooperates with the first latch 8 and the second latch 14, and the pressure head 22 can apply pressure to the workpiece, so as to stably fix it after pre-positioning, thereby ensuring the position stability of the workpiece during the entire processing process, and the clamping force can be evenly distributed on the workpiece. This balanced pressure distribution helps to prevent the workpiece from deformation or damage, especially when performing operations such as welding and grinding;

[0035] The limit assembly 23 is arranged opposite to the translation assembly 2. The limit assembly 23 includes a limit seat 24 and a fixed pressure block 25 and a limit block 26 connected to the limit seat 24. The fixed pressure block 25 is arranged corresponding to the positioning pressure block assembly 20, and the other end of the first workpiece a is pressed by the fixed pressure block 25 and the positioning pressure block assembly 20. The limit block 26 is arranged opposite to the translation assembly 2. Through the fixed pressure block 25 and the limit block 26 arranged opposite to the translation assembly 2, the limit assembly 23 ensures that the first workpiece a is correctly positioned after pre-positioning and clamping, thereby ensuring the stability and consistency of the part during the entire processing process; through the synergistic effect of the fixed pressure block 25 and the positioning pressure block assembly 20, the limit assembly 23 enhances the clamping effect on the first workpiece a, and improves the stability and reliability of the clamping; the design of the limit block 26 can also be used to prevent excessive movement or accidental collision, and avoid possible damage to the first workpiece a, especially in high-pressure or high-force processing.

[0036] Preferably, the translation assembly 2 includes a slide rail 27 and a base plate 28 connected to the top of the slide rail 27. The combination of the slide rail 27 and the base plate 28 allows the workpiece to be accurately translated along the axial direction. One side of the base plate 28 is connected to the first manual rod assembly 3. The first manual rod assembly 3 includes a fixed first support member 38 and a translation cylinder 39. The first support member 38 is rotatably connected to a first manual rod 40. The first manual rod 40 is connected to a moving member 29 through a first connecting rod 41. The moving member 29 is connected to one side of the base plate 28. The first connecting rod 41 converts the movement of the first manual rod 40 into a translation movement of the moving member 29, thereby driving the base plate 28 to move axially. The translation cylinder 39 is arranged at the bottom of the slide rail 27. The translation cylinder 39 is connected to the base plate 28 through a connecting member 30. Through the combination of the first manual rod assembly 3 and the translation cylinder 39, the movement of the positioning block assembly 20 and the second pre-positioning mechanism 5 can be manually adjusted with little effort by utilizing the principle of leverage.

[0037] Preferably, the positioning pressure block assembly 20 includes a fixing part 31, a limiting pressure block 32 and a translation pressure block 33. The fixing part 31 is connected to the top of the translation assembly 2, and the limiting pressure blocks 32 are respectively connected to the two sides of the fixing part 31. The side of the fixing part 31 facing the first workpiece a is connected to the translation pressure block 33. The translation pressure block 33 is connected to the fixing part 31. The fixing part 31 provides stable support for the translation pressure block 33 to ensure that the first workpiece a is firmly clamped by the translation pressure block 33 and the fixed pressure block 25 during the processing. The operator can manually adjust the position of the translation pressure block 33 through the first manual rod assembly 3, so that the process of loading and positioning the workpiece becomes faster and more intuitive, and the limiting pressure block 32 can prevent the first workpiece a from shaking during the clamping process. This stability is crucial to maintaining the position accuracy of the parts.

[0038] Preferably, the second manual rod assembly 12 includes a second support member 42 connected to the first cylinder 11, the second support member 42 is rotatably connected to the second manual rod 43, the middle part of the second manual rod 43 is rotatably connected to the cylinder rod of the first cylinder 11, and the second support member 42 provides a fixed point for the second manual rod 43, which drives the cylinder rod of the first cylinder 11 to drive the sleeve 13 to position the second pin 14.

[0039] Preferably, the clamping mechanism 34 includes a fixedly arranged clamping cylinder 35 , a pin shaft 36 passes through the clamping cylinder 35 along the width direction, and pressure arms 37 are connected through both ends of the pin shaft 36 , and the pressure arms 37 are connected to the middle of the pressure rod 21 .

[0040] Preferably, the first latch 8 and the second latch 14 are both T-shaped structures, one end of the first latch 8 and the second latch 14 are respectively in contact with the pressure head 22, the other end of the first latch 8 penetrates the second workpiece b and the first workpiece a in sequence and is mounted on the latch positioning seat 6, the other end of the second latch 14 penetrates the second workpiece b and the first workpiece a in sequence and is penetrated in the pre-positioning latch seat 7, the first latch 8 and the second latch 14 penetrate the second workpiece b and the first workpiece a to fix them firmly in the corresponding positions, which can prevent the second workpiece b and the first workpiece a from shifting during the processing, and the operator only needs to insert the latch into the corresponding hole to achieve rapid positioning and fixation of the parts.

[0041] The clamping mechanism 34 with a pre-positioning function provided by the utility model can realize multi-directional and multi-level precise pre-positioning by integrating the first, second and third pre-positioning mechanisms 15, thereby ensuring highly precise matching of components in assembly, positioning, welding and other processes; a stable positioning function is realized by components such as the latch positioning seat 6 and the first latch 8, the pre-positioning latch seat 7 and the second latch 14, and the second cylinder 16 and the third latch 19, which significantly improves the quality of the connection process (such as welding), ensures the uniformity of the weld and the stability of the joint, and thus improves the performance and safety of the final product; the first, second and third pre-positioning mechanisms 15 can be used to quickly adjust to different product models or product design changes, provide better adaptability and flexibility, reduce production delays caused by replacing or adjusting the fixture, and the pre-positioning function makes the placement and adjustment of parts faster and more accurate, reduces the errors and inefficiency of manual inspection methods, thereby improving production efficiency and quality control standards.

[0042] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A clamping mechanism with a pre-positioning function, characterized in that: include: A first pre-positioning mechanism, wherein the first pre-positioning mechanism comprises a translation assembly, one side of the translation assembly is connected to a first manual rod assembly, the upper part of the translation assembly is connected to a second pre-positioning mechanism via a support seat, and the upper part of the translation assembly is also connected to a positioning block assembly; A second pre-positioning mechanism, the second pre-positioning mechanism includes a latch positioning seat and a pre-positioning latch seat, a first latch is arranged above the latch positioning seat, the first latch sequentially penetrates the second workpiece and one end of the first workpiece, the pre-positioning latch seat is connected to the support seat, one end of the pre-positioning latch seat is connected to a first cylinder, the first cylinder is connected to a second manual rod assembly, the pre-positioning latch seat is a hollow structure, so that the cylinder rod of the first cylinder is penetrated in the pre-positioning latch seat and connected with a sleeve, the sleeve penetrates the other end of the pre-positioning latch seat, the sleeve is penetrated with a second latch, and the second latch sequentially penetrates the second workpiece and one end of the first workpiece; A third pre-positioning mechanism, the third pre-positioning mechanism is fixedly arranged on one side of the translation assembly, the third pre-positioning mechanism includes a second cylinder, the cylinder rod of the second cylinder is connected to a push plate, the push plate is connected to a third latch through a side latch seat, the third latch passes through the side of the first workpiece and is penetrated in the positioning block assembly, and one side of the push plate is connected to a third manual rod assembly; A clamping mechanism, wherein the clamping mechanism is connected to a pressure rod, and two ends of the pressure rod are connected to pressure heads corresponding to the first latch and the second latch respectively; A limit assembly, wherein the limit assembly is arranged opposite to the translation assembly, the limit assembly includes a limit seat and a fixed pressure block and a limit block connected to the limit seat, the fixed pressure block is arranged corresponding to the positioning pressure block assembly, and the other end of the first workpiece is pressed by the fixed pressure block and the positioning pressure block assembly, and the limit block is arranged opposite to the translation assembly.

2. The clamping mechanism with pre-positioning function according to claim 1, characterized in that: The translation assembly includes a slide rail and a base plate connected to the top of the slide rail, one side of the base plate is connected to the first manual rod assembly, the first manual rod assembly includes a fixed first support and a translation cylinder, the first support is rotatably connected to the first manual rod, the first manual rod is connected to a moving part through a first connecting rod, the moving part is connected to one side of the base plate, the translation cylinder is set at the bottom of the slide rail, and the translation cylinder is connected to the base plate through a connecting part.

3. The clamping mechanism with pre-positioning function according to claim 1, characterized in that: The positioning pressure block assembly includes a fixing member, a limiting pressure block and a translation pressure block. The fixing member is connected to the top of the translation assembly, and the limiting pressure blocks are respectively connected to both sides of the fixing member. The side of the fixing member facing the first workpiece is connected to the translation pressure block.

4. The clamping mechanism with pre-positioning function according to claim 1, characterized in that: The second manual rod assembly includes a second support member connected to the first cylinder, the second support member is rotatably connected to a second manual rod, and the middle portion of the second manual rod is rotatably connected to the cylinder rod of the first cylinder.

5. The clamping mechanism with pre-positioning function according to claim 1, characterized in that: The clamping mechanism comprises a fixedly arranged clamping cylinder, wherein a pin shaft penetrates the clamping cylinder along the width direction, and pressure arms are connected through both ends of the pin shaft, and the pressure arms are connected to the middle part of the pressure rod.

6. The clamping mechanism with pre-positioning function according to claim 1, characterized in that: The first latch and the second latch are both T-shaped structures, one end of the first latch and the second latch are respectively in contact with the pressure head, the other end of the first latch passes through the second workpiece and the first workpiece in sequence and is placed on the latch positioning seat, and the other end of the second latch passes through the second workpiece and the first workpiece in sequence and is passed through the pre-positioning latch seat.

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