A positioning mechanism for a gasket stamping equipment

Abstract

This utility model provides a positioning mechanism for a gasket stamping equipment, including a floating tensioning mechanism, two side positioning mechanisms, and two tensioning linkage mechanisms. The two side positioning mechanisms are symmetrically arranged. The bottom of the tensioning linkage mechanism is connected to the floating tensioning mechanism, and the top of the tensioning linkage mechanism is connected to one of the side positioning mechanisms. The side positioning mechanisms are provided with symmetrically distributed rolling constraint components, whose rotation axes are arranged at an acute angle to the material travel direction. The floating tensioning mechanism applies radial preload to the rolling constraint components through the tensioning linkage mechanisms, so that the rolling constraint components form an elastic floating limit on the side edge of the material plate. The positioning mechanism for a gasket stamping equipment described in this utility model solves the problem that in related technologies, the rigid contact components such as the stops and positioning pins of the positioning mechanism wear due to high-frequency impact and friction, causing the positioning reference surface to gradually deviate from the initial setting, resulting in irreversible decrease in accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, and in particular relates to a positioning mechanism for a gasket stamping equipment. Background Technology

[0002] The core function of the positioning mechanism in a gasket stamping machine is to ensure that the strip or sheet material to be processed is accurately and consistently guided to a predetermined position within the die before each stamping stroke, thereby guaranteeing the stamping accuracy of the gasket contour, the relative consistency of the hole positions, and the dimensional stability of the final product. This mechanism typically employs rigid, reliable, and finely adjustable physical limiting elements, such as robust side stops or precision locating pins. These elements are strategically placed at key nodes in the material's travel path, actively eliminating potential lateral offsets or longitudinal cumulative errors in the feed plane by closely engaging with the material edges or pre-stamped process holes. Because the positioning mechanisms in related technologies rely on the sliding friction of rigid stops and locating pins to limit material movement, their contact parts undergo irreversible wear under continuous impact loads. This leads to a systematic offset of the positioning reference surface relative to the initial set position, and the lack of a real-time compensation mechanism ultimately results in a gradual deterioration of positioning accuracy. Summary of the Invention

[0003] In view of this, the present invention aims to at least partially solve one of the related technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A positioning mechanism for a gasket stamping equipment includes a floating tensioning mechanism, two side positioning mechanisms, and two tensioning linkage mechanisms;

[0006] The two side positioning mechanisms are arranged symmetrically on the left and right sides;

[0007] The two tensioning linkage mechanisms are symmetrically arranged on the left and right, the bottom of the tensioning linkage mechanism is connected to the floating tensioning mechanism, and the top of the tensioning linkage mechanism is connected to one of the side positioning mechanisms;

[0008] The side positioning mechanism is provided with symmetrically distributed rolling constraint components, whose rotation axis is arranged at an acute angle to the material travel direction. The floating tensioning mechanism applies radial preload to the rolling constraint components through the tensioning linkage mechanism, so that the rolling constraint components form an elastic floating limit on the side edge of the material plate.

[0009] The side positioning mechanism includes an adjustable positioning mechanism and a mounting plate. Two rolling constraint components are symmetrically arranged on the inner end face of the mounting plate, and two adjustable positioning mechanisms are symmetrically arranged on the outer end face of the mounting plate. The outer end face of the middle part of the mounting plate is connected to the top of the tensioning linkage mechanism.

[0010] Furthermore, the adjustable positioning mechanism includes a first L-shaped support, an adjusting rod, a locking screw, a fixing sleeve, a fixing plate, and two floating guide structures. The vertical part of the first L-shaped support is provided with a sliding through hole. The inner end of the adjusting rod is connected to the fixing plate through the fixing sleeve. The fixing plate is disposed on the outer end face of the mounting plate. The outer end of the adjusting rod can slide and engage with the sliding through hole. The sliding through hole is connected and fixed to the adjusting rod through the locking screw. The two floating guide structures are symmetrically arranged on both sides of the horizontal part of the first L-shaped support.

[0011] Furthermore, the floating guide structure includes a guide plate, multiple stroke holes, and multiple guide rods. The guide plate is fixedly connected to the horizontal side end face of the first L-shaped support. The multiple stroke holes are arranged on the guide plate, and a guide rod is correspondingly provided in each stroke hole. The bottom of the guide rod is provided with a threaded structure, which is used to connect to the fixed end.

[0012] Furthermore, the rolling constraint assembly includes a roller support and a carbide roller, wherein the carbide roller is connected to the inner end face of the mounting plate through the roller support.

[0013] Furthermore, the floating tensioning mechanism includes a guide frame and a tensioning spring. Two tensioning linkage mechanisms are symmetrically arranged on both sides of the guide frame. The slide rods of the tensioning linkage mechanisms slide in cooperation with the guide frame. The first and second ends of the tensioning spring are respectively connected to the slide rod ends of the two tensioning linkage mechanisms.

[0014] Furthermore, the tensioning linkage mechanism includes a second L-shaped support and a slide rod. The top of the second L-shaped support is welded to the middle of the mounting plate, the bottom of the second L-shaped support is threaded to the outer end of the slide rod, and the inner end of the slide rod is connected to the tension spring.

[0015] Furthermore, the tensioning linkage mechanism also includes a guide positioning structure, which includes a connecting plate and a guide sleeve. The guide sleeve is connected to the lower end face of the machine frame table through the connecting plate, and the guide sleeve slides with the slide rod through a linear bearing.

[0016] Compared with the prior art, the positioning mechanism for gasket stamping equipment described in this utility model has the following advantages:

[0017] 1. The floating tensioning mechanism constructs a bidirectional elastic tension source through the compact combination of the guide frame and the tension spring. It continuously outputs a balanced radial preload by utilizing the linear recovery characteristics of the spring. At the same time, the rectangular track constraint of the guide frame ensures that the tension is always accurately transmitted along the center line of the material. This not only realizes stepless flexible adjustment of the tension force, but also transforms unidirectional tension into synchronous push-pull action on both sides of the linkage mechanism through the sliding pair of the guide frame and the slide bar, cleverly eliminating the off-center load friction caused by traditional unilateral force application.

[0018] 2. The tensioning linkage mechanism uses a second L-shaped support to convert the load of the mounting plate into the axial movement of the slide bar, so that the extension and retraction stroke of the slide bar under the reciprocating action of the tension spring always maintains a pure linear motion with zero lateral swing. This allows the elastic potential energy released by the floating tensioning mechanism to be transferred to the rolling constraint component without loss, and finally drives the carbide roller to apply a constant and dynamically compensated radial constraint force to the edge of the material.

[0019] 3. When the material plate experiences thickness fluctuations or roller position deviations, the change in radial resistance on the rollers is immediately fed back to the floating tensioning mechanism. The slight displacement of the slide bar triggers the elastic deformation of the tension spring. At this time, the sliding pair of the guide frame quickly absorbs the internal stress of the mechanism and rebalances the preload output. After the material returns to a steady state, the linear recovery characteristic of the spring drives the mechanism to automatically reset the initial tension state. The entire process does not require external sensors or electric drive. The self-adjustment control of the positioning pressure is achieved solely through the mechanical structure, which significantly improves the equipment's tolerance to complex working conditions and eliminates the risk of material damage or positioning failure due to over-constraint. Attached Figure Description

[0020] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0021] Figure 1 This is a schematic diagram of a positioning mechanism for a gasket stamping equipment according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the side positioning mechanism described in an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the tensioning linkage mechanism described in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the floating tensioning mechanism described in an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Rolling constraint assembly; 200. Mounting plate; 300. Side positioning mechanism; 310. First L-shaped support; 320. Adjusting rod; 321. Locking screw; 330. Fixing sleeve; 340. Fixing plate; 400. Floating guide structure; 410. Stroke hole; 500. Floating linkage mechanism; 510. Second L-shaped support; 520. Slide rod; 530. Guide positioning structure; 600. Floating tensioning mechanism; 610. Guide frame; 620. Tension spring. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] A positioning mechanism for a gasket stamping equipment, such as Figure 1 As shown, it includes a floating tensioning mechanism 600, two side positioning mechanisms 300, and two tensioning linkage mechanisms; the two side positioning mechanisms 300 are arranged symmetrically on the left and right sides.

[0032] Two tensioning linkage mechanisms are symmetrically arranged on the left and right. The bottom of the tensioning linkage mechanism is connected to the floating tensioning mechanism 600, and the top of the tensioning linkage mechanism is connected to a side positioning mechanism 300. The side positioning mechanism 300 is provided with symmetrically distributed rolling constraint components 100, whose rotation axis is arranged at an acute angle to the material travel direction. The floating tensioning mechanism 600 applies radial preload to the rolling constraint components 100 through the tensioning linkage mechanism, so that the rolling constraint components 100 form an elastic floating limit on the side edge of the material plate. The rolling constraint components 100 include roller supports and hard alloy rollers. The hard alloy rollers are connected to the inner end face of the mounting plate 200 through the roller supports.

[0033] The side positioning mechanism 300 includes an adjustable positioning mechanism and a mounting plate 200. Two rolling constraint components 100 are symmetrically arranged on the inner end face of the mounting plate 200, and two adjustable positioning mechanisms are symmetrically arranged on the outer end face of the mounting plate 200. The outer end face of the middle part of the mounting plate 200 is connected to the top of the tensioning linkage mechanism.

[0034] The adjustable positioning mechanism includes a first L-shaped support 310, an adjusting rod 320, a locking screw 321, a fixing sleeve 330, a fixing plate 340, and two floating guide structures 400. The vertical part of the first L-shaped support 310 is provided with a sliding through hole. The inner end of the adjusting rod 320 is connected to the fixing plate 340 through the fixing sleeve 330. The fixing plate 340 is set on the outer end face of the mounting plate 200. The outer end of the adjusting rod 320 can slide and cooperate with the sliding through hole. The sliding through hole is connected and fixed to the adjusting rod 320 through the locking screw 321. The two floating guide structures 400 are symmetrically arranged on both sides of the horizontal part of the first L-shaped support 310.

[0035] The floating guide structure 400 includes a guide plate, multiple stroke holes 410 and multiple guide rods. The guide plate is fixedly connected to the horizontal side end face of the first L-shaped support 310. The multiple stroke holes 410 are arranged on the guide plate, and a guide rod is correspondingly provided in each stroke hole 410. The bottom of the guide rod is provided with a threaded structure for connecting the fixed end.

[0036] The floating tensioning mechanism 600 includes a guide frame 610 and a tension spring 620. Two tensioning linkage mechanisms are symmetrically arranged on both sides of the guide frame 610. The slide rod 520 of the tensioning linkage mechanism slides with the guide frame 610. The first and second ends of the tension spring 620 are respectively connected to the ends of the slide rods 520 of the two tensioning linkage mechanisms. The floating tensioning mechanism 600 constructs a bidirectional elastic tension source through the compact combination of the guide frame 610 and the tension spring 620. It continuously outputs a balanced radial preload by utilizing the linear recovery characteristic of the spring. At the same time, the rectangular track constraint of the guide frame 610 ensures that the tension is always accurately transmitted along the centerline of the material. This not only realizes stepless flexible adjustment of the tension force, but also transforms unidirectional tension into synchronous push-pull action on both sides of the linkage mechanism through the sliding pair of the guide frame 610 and the slide rod 520, cleverly eliminating the off-center load friction caused by traditional unilateral force application.

[0037] The tensioning linkage mechanism includes a second L-shaped support 510 and a slide rod 520. The top of the second L-shaped support 510 is welded to the middle of the mounting plate 200, and the bottom of the second L-shaped support 510 is threaded to the outer end of the slide rod 520. The inner end of the slide rod 520 is connected to the tension spring 620. The tensioning linkage mechanism also includes a guide positioning structure 530, which includes a connecting plate and a guide sleeve. The guide sleeve is connected to the lower end face of the machine frame platform through the connecting plate, and the guide sleeve slides with the slide rod 520 through a linear bearing. The tensioning linkage mechanism uses a second L-shaped support 510 to convert the load of the mounting plate 200 into the axial movement of the slide bar 520. This ensures that the extension and retraction stroke of the slide bar 520 under the reciprocating action of the tension spring 620 always maintains a pure linear motion with zero lateral sway. In this way, the elastic potential energy released by the floating tensioning mechanism 600 is transferred to the rolling constraint component 100 without loss, and finally drives the carbide roller to apply a constant and dynamically compensated radial constraint force to the edge of the material.

[0038] When the material plate experiences thickness fluctuations or roller position deviations, the change in radial resistance experienced by the roller is immediately fed back to the floating tensioning mechanism 600. This triggers the elastic deformation of the tension spring 620 through a slight displacement of the slide bar 520. At this time, the sliding pair of the guide frame 610 quickly absorbs the internal stress of the mechanism and rebalances the preload output. After the material returns to a steady state, the linear recovery characteristic of the spring drives the mechanism to automatically reset to the initial tension state. The entire process requires no external sensors or electric drive, and the self-adjustment control of the positioning pressure is achieved solely through a purely mechanical structure. This significantly improves the equipment's tolerance to complex working conditions and eliminates the risk of material damage or positioning failure due to over-constraint.

[0039] How this example works

[0040] Step 1: Place two rectangular mounting plates 200 with the material travel centerline as the symmetrical reference; symmetrically install two sets of rolling constraint components 100 on the inner end face of each mounting plate along the vertical direction. The hard alloy rollers, made of YG8 material, are connected to roller supports made of QT600 ductile iron through needle roller bearings. The roller rotation axis forms an adjustable acute angle of 45°±5° with the material travel direction, with an actual adjustment range of 15°-75°. The working surface of the roller is machined with a 1° taper so that the small end faces the material side. The bottom of the roller support is provided with a T-shaped guide rail groove that is bolted to the mounting plate to achieve radial position ±5mm mechanical fine adjustment.

[0041] Step Two: The guide frame 610 of the floating tensioning mechanism 600 is welded from 45mm steel square tubing into a rectangular frame, with HGH15CA type linear guide rails embedded inside. The center line of the frame is installed coinciding with the center line of the material; two diameter... The hard chrome-plated slide rod 520 passes through the linear bearings on both sides of the guide frame. The tension spring 620 is made of 60Si2Mn spring steel wire, and its two ends are screwed into the end screw holes of the two slide rods through fisheye joints with M12×1.5 threads. The pre-compression is set to 10mm to generate the initial tension force. The vertical surface of the second L-shaped support 510 is fully welded to the back of the mounting plate 200 with a weld height of 8mm. Its horizontal bottom surface is machined with an M18×1.5 internal thread hole to connect with the outer end of the slide rod, forming a rigid mechanical transmission link.

[0042] Step 3: Install an adjustable positioning mechanism on the outer end face of the mounting plate 200: the vertical part of the first L-shaped support 310 opens A sliding through-hole is provided, through which the adjusting rod 320 passes and is connected to the fixing plate 340 via a fixing sleeve 330. The fixing plate is secured to the mounting plate by four sets of M8 bolts. The adjusting rod is engraved with a precision scale of 1mm / division, and its outer end is locked in position with a stroke of ±5mm via an M6 socket head cap screw 321. The guide plates of the two floating guide structures 400 are fixed to both sides of the horizontal part of the first L-shaped support by countersunk screws, and three 20×50mm elongated holes on them serve as stroke holes 410. After the guide rod passes through the stroke hole, the bottom M8 thread is screwed into the pre-set thread array hole on the machine table surface, with a hole spacing of 50mm. An anti-loosening nut is installed on the top and a floating gap of 0.3-0.5mm is reserved.

[0043] Step 4: Push the mounting plate 200 outward and drive the slide rod 520 to stretch the tension spring 620. The spring reaction force is transmitted to the roller through the slide rod-second L-shaped support to generate radial constraint. When the material edge shape fluctuates or the roller wears, the tension spring 620 provides real-time elastic compensation for the wear, thereby preventing the systematic offset of the positioning reference surface.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A positioning mechanism for a gasket stamping apparatus, characterized by: It includes a floating tensioning mechanism (600), two side positioning mechanisms (300), and two tensioning linkage mechanisms; The two side positioning mechanisms (300) are arranged symmetrically on the left and right sides; The two tensioning linkage mechanisms are arranged symmetrically on the left and right. The bottom of the tensioning linkage mechanism is connected to the floating tensioning mechanism (600), and the top of the tensioning linkage mechanism is connected to a side positioning mechanism (300). The side positioning mechanism (300) is provided with symmetrically distributed rolling constraint components (100), whose rotation axis is arranged at an acute angle to the material travel direction. The floating tensioning mechanism (600) applies radial preload to the rolling constraint components (100) through the tensioning linkage mechanism, so that the rolling constraint components (100) form an elastic floating limit on the side edge of the material plate. The side positioning mechanism (300) includes an adjustable positioning mechanism and a mounting plate (200). Two rolling constraint components (100) are symmetrically arranged on the inner end face of the mounting plate (200), and two adjustable positioning mechanisms are symmetrically arranged on the outer end face of the mounting plate (200). The outer end face of the middle part of the mounting plate (200) is connected to the top of the tensioning linkage mechanism.

2. A positioning mechanism for a gasket stamping apparatus according to claim 1, characterized in that: The adjustable positioning mechanism includes a first L-shaped support (310), an adjusting rod (320), a locking screw (321), a fixing sleeve (330), a fixing plate (340), and two floating guide structures (400). The vertical part of the first L-shaped support (310) is provided with a sliding through hole. The inner end of the adjusting rod (320) is connected to the fixing plate (340) through the fixing sleeve (330). The fixing plate (340) is disposed on the outer end face of the mounting plate (200). The outer end of the adjusting rod (320) can slide and cooperate with the sliding through hole. The sliding through hole is connected and fixed to the adjusting rod (320) through the locking screw (321). The two floating guide structures (400) are symmetrically arranged on both sides of the horizontal part of the first L-shaped support (310).

3. A positioning mechanism for a gasket blanking apparatus according to claim 2, wherein: The floating guide structure (400) includes a guide plate, multiple stroke holes (410) and multiple guide rods. The guide plate is fixedly connected to the horizontal side end face of the first L-shaped support (310). The multiple stroke holes (410) are arranged on the guide plate. Each stroke hole (410) is provided with a corresponding guide rod. The bottom of the guide rod is provided with a threaded structure, which is used to connect the fixed end.

4. The positioning mechanism for a gasket blanking apparatus according to claim 2, wherein: The rolling constraint assembly (100) includes a roller support and a carbide roller, the carbide roller being connected to the inner end face of the mounting plate (200) via the roller support.

5. A positioning mechanism for a gasket stamping apparatus according to any one of claims 1-4, characterized in that: The floating tensioning mechanism (600) includes a guide frame (610) and a tension spring (620). Two tensioning linkage mechanisms are symmetrically arranged on both sides of the guide frame (610). The slide rod (520) of the tensioning linkage mechanism is slidably engaged with the guide frame (610). The first and second ends of the tension spring (620) are respectively connected to the ends of the slide rods (520) of the two tensioning linkage mechanisms.

6. A positioning mechanism for a gasket stamping equipment according to claim 5, characterized in that: The tensioning linkage mechanism includes a second L-shaped support (510) and a slide rod (520). The top of the second L-shaped support (510) is welded to the middle of the mounting plate (200), the bottom of the second L-shaped support (510) is threaded to the outer end of the slide rod (520), and the inner end of the slide rod (520) is connected to the tension spring (620).

7. A positioning mechanism for a gasket blanking apparatus according to claim 6, wherein: The tensioning linkage mechanism also includes a guide positioning structure (530), which includes a connecting plate and a guide sleeve. The guide sleeve is connected to the lower end face of the machine frame table through the connecting plate, and the guide sleeve is slidably engaged with the slide rod (520) through a linear bearing.

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