Anti-unbalance-loading type inclined wedge mechanism and side stamping machining device

Abstract

The invention relates to the technical field of wedge mechanisms and side stamping machining devices applied to automobile stamping dies, in particular to an unbalance-loading-resistant wedge mechanism and a side stamping machining device.The unbalance-loading-resistant wedge mechanism comprises a sliding base assembly arranged on an upper die plate, and a first sliding groove is formed in the side, away from the upper die plate, of the sliding base assembly; the first guide plate assembly is arranged in the first sliding groove and is of a first V-shaped structure. A second butt joint beam is arranged on the side, close to the upper die plate, of the sliding block assembly, and the second butt joint beam is matched with the first V-shaped structure in direction. The second guide plate assembly is arranged in the second sliding groove and is of a second V-shaped structure. The driving block is arranged on the lower die plate, and a first butt-joint beam is arranged on the side, away from the lower die plate, of the driving block. According to the wedge mechanism, the problem of abnormal damage caused by non-centered blanking force of a traditional plane contact wedge mechanism is fundamentally solved, so that the movement stability and the forming precision of the wedge mechanism are remarkably improved, and the service life of a die is remarkably prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of a cam mechanism and a side stamping device applied to an automobile stamping die, and in particular to an anti-bias load type cam mechanism and a side stamping device. BACKGROUND

[0002] The cam mechanism is a mechanism for stamping processing. Due to the complex and variable shape of the workpiece, it is impossible to achieve complete processing in the same direction. Sometimes when the work content is at a certain angle to the stamping direction of the overall die, the workpiece cannot be directly processed and formed, and a cam mechanism needs to be used to change the force of the stamping direction, convert the vertical force into a force at a certain angle to the stamping direction, so as to facilitate the processing and manufacturing of the workpiece.

[0003] The patent with publication number CN222343987U discloses a cam mechanism, which comprises a cam, a guide sleeve mounted on the inner side of the cam, and a sliding block mounted on the outer side of the guide sleeve. The inner side of the cam is provided with threaded holes at both ends, the inner side of the guide sleeve is provided with threaded tracks at both ends, the two threaded tracks are oppositely arranged, the first threaded piece and the second threaded piece connected with the two threaded holes are respectively arranged in the two threaded tracks, the transmission structure meshing with the first threaded piece and the second threaded piece is arranged in the guide sleeve, the first threaded sleeve and the second threaded sleeve are affected by the different screw directions of the first threaded groove and the second threaded groove, and can move in different directions during rotation. The first threaded sleeve and the second threaded sleeve can be moved away from each other to cooperate with the threaded holes for installation, or can be moved close to each other to separate from the threaded holes, so that the threaded sleeve is retracted into the guide sleeve, thereby facilitating the disassembly of the guide sleeve and the cam.

[0004] The prior art including the above-mentioned scheme still has the following problems. First, the sliding block and the cam directly contact to form rigid friction. In the periodic high-load stamping movement, the contact surface is subjected to severe wear due to continuous reciprocating sliding, resulting in gradual loss of fitting accuracy. Not only does this increase the maintenance frequency and cost, but it also significantly shortens the overall service life of the die. Second, the contact surface between the sliding block and the cam adopts a planar structure design. In the stamping process, due to the existence of lateral component force and assembly gap, the sliding block is prone to lateral swing and bias load relative to the cam. This instability not only aggravates the stress concentration and abnormal wear of the contact edge, but also causes an increase in stamping noise, fluctuation in forming precision, and instantaneous impact overload of the die, thereby affecting the product quality consistency and causing safety hazards. In order to solve the above problems, an anti-bias load type cam mechanism and a side stamping device are proposed in the present application. SUMMARY

[0005] To achieve the above-mentioned purpose, the present application provides an anti-bias load type cam mechanism, which comprises: The slide assembly is provided on the upper die plate, and a first sliding groove is arranged on the side of the slide assembly away from the upper die plate, and the length direction of the groove cavity of the first sliding groove is arranged obliquely downward from the upper die plate to the lower die plate. The first guide plate assembly is arranged in the first sliding groove, the first guide plate assembly is in a first V-shaped structure, and the length direction of the groove cavity of the first V-shaped structure is matched with the length direction of the groove cavity of the first sliding groove. The slide block assembly is provided with a second butt joint beam on the side close to the upper die plate, the direction of the second butt joint beam is matched with the direction of the first V-shaped structure, and the second butt joint beam is respectively arranged in close contact with the two side walls of the first V-shaped structure, and the slide block assembly is provided with a second sliding groove on the side close to the lower die plate, and the length direction of the groove cavity of the second sliding groove is arranged obliquely upward from the lower die plate to the upper die plate. The second guide plate assembly is arranged in the second sliding groove, the second guide plate assembly is in a second V-shaped structure, and the length direction of the groove cavity of the second V-shaped structure is matched with the length direction of the groove cavity of the second sliding groove. The driving block is arranged on the lower die plate, and a first butt joint beam is arranged on the side of the driving block away from the lower die plate, the direction of the first butt joint beam is matched with the direction of the second V-shaped structure, and the first butt joint beam is respectively arranged in close contact with the two side walls of the second V-shaped structure.

[0006] Optionally, the slide assembly comprises: The slide body is fixedly arranged on the upper die plate, and a protrusion is extended from the side of the slide body away from the upper die plate to the direction away from the upper die plate. The side plate is arranged on the slide body, and the number of the side plates is two, and the two side plates are symmetrically arranged about the protrusion. The baffle is arranged on the slide body, and the protrusion, the baffle and the two side plates form the first sliding groove.

[0007] Optionally, the slide assembly further comprises: The limiting strip is arranged on the side of the side plate facing the first sliding groove, and the length direction of the limiting strip is matched with the length direction of the groove cavity of the first sliding groove. The guide groove is arranged on the second butt joint beam, the limiting strip is movably arranged in the guide groove, so that the slide block assembly and the slide assembly are connected as a whole, and the slide block assembly is guided to move relative to the slide assembly along the length direction of the groove cavity of the first sliding groove.

[0008] Optionally, it further comprises: The buffer portion is arranged at one end on the baffle and at the other end on the second butt joint beam, and the number of the buffer portions is several. A plurality of said buffer parts are arranged in a plurality of concentric ring structures, or a plurality of said buffer parts are arranged in a matrix.

[0009] Optionally, the slider assembly comprises: A slider body, the second sliding groove is arranged on one side of the slider body facing the lower die plate; A spring mounting seat is arranged on one side of the slider body facing the upper die plate, and the side of the spring mounting seat away from the slider body forms the second butt joint beam; A spring assembly is arranged on the spring mounting seat, the axial direction of the spring assembly is consistent with the length direction of the cavity of the first sliding groove, and one end of the spring assembly away from the spring mounting seat is connected with the protrusion.

[0010] Optionally, the spring assembly comprises: A first spring is arranged on the spring mounting seat; A spring washer is arranged on one end of the first spring away from the spring mounting seat; A second spring is arranged on one side of the spring washer away from the first spring; A spring guide pin is sequentially movably inserted into the second spring, the spring washer and the first spring.

[0011] Optionally, it further comprises: A reverse wedge drawbar is arranged in the mounting groove arranged on the slider body, and the reverse wedge drawbar is movably arranged in the third butt joint groove arranged on the driving block; A blocking strip is arranged in the third butt joint groove, and the fourth butt joint groove is formed between the blocking strip and the bottom wall of the third butt joint groove; A limiting block is arranged on one side of the reverse wedge drawbar facing the second sliding groove, and the limiting block is movably arranged in the fourth butt joint groove.

[0012] Optionally, the first guide plate assembly comprises: A first sliding guide plate is arranged in the first sliding groove; A second sliding guide plate is arranged in the first sliding groove, and the extension line of the second sliding guide plate intersects with the extension line of the first sliding guide plate, so that the second sliding guide plate and the first sliding guide plate form the first V-shaped structure.

[0013] Optionally, the second guide plate assembly comprises: A third sliding guide plate is arranged in the second sliding groove; A fourth sliding guide plate is arranged in the second sliding groove, and the extension line of the fourth sliding guide plate intersects with the extension line of the third sliding guide plate, so that the fourth sliding guide plate and the third sliding guide plate form the second V-shaped structure.

[0014] To achieve the above object, the application further provides a side punching device, which comprises an upper die plate and a lower die plate, and the anti-bias load type inclined wedge mechanism arranged between the upper die plate and the lower die plate.

[0015] The beneficial effects of the application are as follows: The application effectively limits the lateral swing of the sliding block during the movement by the slope cooperation between the first guide plate assembly and the second butt joint beam between the sliding seat assembly and the sliding block assembly, and the slope cooperation between the second guide plate assembly and the first butt joint beam between the driving block and the sliding block assembly, fundamentally solves the abnormal damage problem of the traditional plane contact inclined wedge mechanism caused by the blanking force and the off-center, and significantly improves the movement stability, forming precision and service life of the die of the inclined wedge mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an embodiment structure schematic diagram of the anti-bias load type inclined wedge mechanism of the application. Figure 2 It is an embodiment structure schematic diagram of the anti-bias load type inclined wedge mechanism of the application. Figure 1 It is a partial explosion structure schematic diagram of the sliding block assembly of the application.

[0017] REFERENCE NUMERALS 1, sliding seat assembly; 11, sliding seat body; 12, first sliding groove; 13, side plate; 131, limiting strip; 14, baffle; 2, first sliding guide plate; 3, second sliding guide plate; 4, sliding block assembly; 41, sliding block body; 42, spring mounting seat; 43, first spring; 44, spring washer; 45, second spring; 46, spring guide pin; 47, second sliding groove; 48, mounting groove; 5, third sliding guide plate; 6, fourth sliding guide plate; 7, driving block; 71, first butt joint beam; 8, counter wedge pull block; 9, limiting block; 10, third butt joint groove; 20, blocking strip; 30, fourth butt joint groove; 40, second butt joint beam; 50, guide groove; 60, buffer part. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art. The terms "comprising" and similar expressions used herein mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, but do not exclude other elements or objects.

[0019] To address the problems existing in the prior art, embodiments of the present invention provide an anti-eccentric load type wedge mechanism, such as... Figure 1 As shown, the assembly includes a slide block assembly 1, a first guide plate assembly, a slider assembly 4, a second guide plate assembly, and a drive block 7. This embodiment addresses the problems of off-center loading, swaying, and wear that easily occur in the prior art due to planar contact between the slider and the wedge. The five-component combination structure provided by this embodiment, comprising the slide block assembly 1, the first guide plate assembly, the slider assembly 4, the second guide plate assembly, and the drive block 7, forms a dual guiding and force transmission system by having two sets of V-shaped guide plate assemblies respectively engage with the inclined surfaces of the connecting beam. This design decomposes and constrains the single vertical motion onto two inclined contact lines. Utilizing the self-aligning characteristic of the V-shaped structure, it greatly enhances the lateral stiffness and stability of the slider assembly 4 during reciprocating motion, thereby effectively suppressing off-center loading, reducing abnormal wear and impact noise on the contact surface, and improving the accuracy and reliability of the stamping process.

[0020] In one embodiment, such as Figure 1 As shown, the slide assembly 1 is mounted on the upper template. A first sliding groove 12 is provided on the side of the slide assembly 1 away from the upper template. The length direction of the first sliding groove 12 is inclined downward from the upper template to the lower template. This embodiment constructs a precise and stable initial motion track for the entire wedge mechanism. The inclined groove pre-converts the vertical motion of the upper template into the oblique motion of the slider assembly 4 at a specific angle. This not only directly realizes the function of changing the stamping direction, but more importantly, its inclined track surface provides guidance and constraint to the slider assembly 4, restricting its degree of freedom at the beginning of the movement. This effectively prevents radial runout or swaying that may occur due to sudden changes in direction, laying a stable foundation for the subsequent precise cooperation with the drive block 7, thereby improving the anti-eccentric load capacity from the structural source.

[0021] In one embodiment, such as Figure 1As shown, the first guide plate assembly is arranged in the first sliding groove 12, the first guide plate assembly is in a first V-shaped structure, and the length direction of the cavity of the first V-shaped structure is adapted to the length direction of the cavity of the first sliding groove 12; this embodiment changes the traditional single-point or planar contact into two precise linear contacts. This V-shaped layout forms a bidirectional constraint on the slider assembly 4 in the inclined motion direction, like a movable “wedge-shaped guide rail”, which can not only efficiently transmit power, but also effectively limit any lateral displacement or torsion of the slider in the plane perpendicular to the motion direction, thereby fundamentally eliminating the load deviation and shaking caused by the gap, ensuring the smooth and precise sliding of the slider assembly 4 along the predetermined inclined trajectory, and greatly improving the guiding rigidity and motion stability.

[0022] In an embodiment, as shown in the drawings, Figure 1 As shown, the side of the slider assembly 4 close to the upper die plate has a second butt joint beam 40, the second butt joint beam 40 is adapted to the direction of the first V-shaped structure, and the second butt joint beam 40 is arranged in close contact with the two side walls of the first V-shaped structure, respectively. The side of the slider assembly 4 close to the lower die plate is provided with a second sliding groove 47, and the length direction of the cavity of the second sliding groove 47 is arranged obliquely upward from the lower die plate to the upper die plate; this embodiment ensures that the driving force from the upper die plate is evenly decomposed and acts vertically on the guide surface through the precise clamping of the V-shaped guide plate by the second butt joint beam 40 above, effectively preventing torque imbalance; at the same time, the second sliding groove 47 is prepared for engagement with the driving block 7, so that the slider can stably convert the vertical motion of the upper die plate into its oblique motion, and finally transmit the force to the driving block 7 of the lower die, realizing efficient, stable and unbalanced load transmission and conversion of force within the inclined wedge mechanism.

[0023] In an embodiment, the structure of the second butt joint beam 40 is in a reverse V-shaped or wedge-shaped structure matched with the first V-shaped structure. The two inclined side surfaces of this embodiment can realize large-area and high-precision surface contact with the two inner side walls of the first V-shaped guide plate assembly. This matching relationship firmly “embeds” the slider assembly 4 in the guide rail of the slide assembly 1, not only greatly increases the contact area and rigidity of the guide, effectively suppresses the load deviation and shaking caused by lateral force and torque, but also converts sliding friction into more stable inclined surface bearing, ensuring the linearity and accuracy of power transmission, thereby fundamentally improving the smoothness and anti-interference ability of the slider in oblique motion.

[0024] In an embodiment, as shown in the drawings, Figure 1As shown, the second guide plate assembly is arranged in the second sliding groove 47, the second guide plate assembly is in a second V-shaped structure, and the length direction of the cavity of the second V-shaped structure is matched with the length direction of the cavity of the second sliding groove 47; this embodiment makes the slider assembly 4 be accurately constrained by the V-shaped structure at the two contact points, when the driving block 7 pushes the slider, the second V-shaped structure can effectively inhibit the lifting or tilting trend caused by the bottom driving force, so as to ensure that the slider is in a stable and controlled state during the entire oblique movement stroke, so as to realize dynamic balance under bidirectional stress, and further enhance the overall rigidity and anti-unbalanced load performance of the mechanism when bearing the working load.

[0025] In an embodiment, as shown in the drawings, Figure 1 As shown, the driving block 7 is arranged on the lower die plate, and a first butt joint beam 71 is arranged on the side of the driving block 7 away from the lower die plate, the first butt joint beam 71 is matched with the direction of the second V-shaped structure, and the first butt joint beam 71 is respectively matched with the two side walls of the second V-shaped structure. This embodiment realizes accurate and stable coupling of the driving force of the lower die and the movement of the slider. This design makes the pushing force applied by the driving block 7 be uniformly decomposed to the two sides of the second guide plate assembly through the two inclined surfaces of the first butt joint beam 71, forming a symmetrical driving force, effectively avoiding the sticking, twisting or local wear of the slider caused by single-point stress or force line deviation, and ensuring that the slider assembly 4 can also slide stably along the predetermined trajectory under the return or complex stress state, so as to complete the reliable conversion from the power input of the lower die to the accurate oblique movement of the slider, and guarantee the coordination and stability of the entire stamping cycle.

[0026] In an embodiment, the structure of the first butt joint beam 71 is in an inverted V-shaped or wedge-shaped structure matched with the second V-shaped structure. The inclined working surfaces on the two sides of this embodiment can be accurately and symmetrically matched with the two inner side walls of the second V-shaped guide plate assembly. This matching relationship makes the pushing force applied by the driving block 7 be decomposed into two symmetrical forces acting on the two side walls of the second V-shaped structure, generating a centripetal clamping effect, so as to drive the slider while automatically correcting and constraining its position, effectively preventing the phenomena of gnawing, deviation or sticking during driving, ensuring smooth, centered and efficient power transmission, and significantly improving the response accuracy and reliability of the mechanism under high-speed and heavy-load working conditions.

[0027] In an embodiment, as shown in the drawings, Figure 1As shown, the slide assembly 1 comprises a slide body 11 fixed to the upper die plate, the slide body 11 extending out of the upper die plate in a direction away from the upper die plate; a side plate 13 provided on the slide body 11, the number of the side plate 13 is two, and the two side plates 13 are symmetrically arranged about the protrusion; a baffle 14 provided on the slide body 11, the protrusion, the baffle 14 and the two side plates 13 form the first sliding groove 12. This embodiment forms an integrated guide base with high rigidity and accurate positioning. The symmetric side plates 13 ensure the balance of the guide force, the protrusion in the middle effectively resists the eccentric load moment as the key bearing structure, and the baffle 14 limits the movement stroke of the slider; this integrated groove structure provides a stable and reliable installation basis for the V-shaped guide plate assembly, fundamentally ensures the accuracy and consistency of the movement trajectory of the slider assembly 4, and significantly improves the eccentric load resistance and stability of the mechanism in the high-speed stamping process.

[0028] In an embodiment, the connection mode of the side plate 13 and the baffle 14 with the slide body 11 can be bolt connection, pin positioning embedded connection or integral casting structure. The core benefit of this design is that the bolt or pin connection is convenient for manufacturing, adjustment and maintenance, improves the maintainability and assembly accuracy of the assembly; and the integral casting can ensure that the structure has high overall rigidity and dimensional stability, effectively avoiding the loss of guide accuracy due to connection loosening under long-term high load stamping. Regardless of the mode adopted, the purpose is to ensure that the side plate 13, the baffle 14 and the slide body 11 form a solid and reliable whole, provide the first sliding groove 12 with persistent stable geometric accuracy and support strength, and thus guarantee the reliability of the V-shaped guide system in long-term operation.

[0029] In an embodiment, as shown in the drawings, Figure 1 The slide assembly 1 further comprises a limiting strip 131 provided on one side of the side plate 13 facing the first sliding groove 12, the length direction of the limiting strip 131 is adapted to the groove cavity length direction of the first sliding groove 12; a guide groove 50 provided on the second butt joint beam 40, the limiting strip 131 is movably provided in the guide groove 50, so that the slider assembly 4 and the slide assembly 1 are connected as a whole, and the slider assembly 4 is guided to move along the groove cavity length direction of the first sliding groove 12 relative to the slide assembly 1.

[0030] The embodiment sets a limiting strip 131 on the side plate 13 of the sliding block assembly 1 and opens a guiding groove 50 on the second butt beam 40 of the sliding block assembly 4, which has the core benefit of constructing an additional precise linear guide. The structure makes the limiting strip 131 embedded in the guiding groove 50 like a guide rail, which not only connects the sliding block assembly 4 and the sliding block assembly 1 as a whole that can move relatively, prevents the sliding block from being accidentally out of the sliding block assembly 1, but more importantly, it provides an additional constraint parallel to the V-shaped main guide, further limits the possibility of the sliding block rotating or deviating laterally around its axis, thereby greatly enhancing the accuracy of the movement direction of the sliding block and the torsional resistance of the overall mechanism on the basis of the cooperation of the main and secondary V-shaped structures, ensuring the movement trajectory of the inclined wedge mechanism under complex stress.

[0031] In an embodiment, the connecting mode of the limiting strip 131 and the side plate 13 can be countersunk screw fastening, dovetail slot embedding or integral processing with the side plate 13. The countersunk screw fastening facilitates the installation, debugging and replacement of the limiting strip 131, ensuring the assembly flexibility; the dovetail slot embedding can realize gapless stable connection, effectively resisting lateral impact force; and the integral processing with the side plate 13 can further ensure the highest structural rigidity and guiding accuracy. The core purpose of these connection modes is to enable the limiting strip 131 to be firmly and accurately fixed on the side plate 13, forming a wear-resistant, high-precision auxiliary guide rail, thereby tightly cooperating with the guiding groove 50 to jointly constrain the movement trajectory of the sliding block assembly 4 and enhance the stability of its anti-deviation load and anti-torsion.

[0032] In an embodiment, as shown in Figure 1 The anti-deviation type inclined wedge mechanism further comprises a buffer part 60, one end of which is arranged on the baffle plate 14 and the other end of which is arranged on the second butt beam 40. This embodiment sets the buffer part 60 between the baffle plate 14 and the second butt beam 40 of the sliding block assembly 4, which has the core benefit of effectively absorbing the impact energy generated when the sliding block contacts the baffle plate 14 at the end of the stroke. This design converts the inevitable rigid impact into controllable elastic buffering, significantly reducing the impact noise, vibration and instantaneous stress of the contact parts of the mechanism, not only protecting the key structures such as the baffle plate 14 and the second butt beam 40 from impact damage and prolonging their service life, but also making the movement of the sliding block more stable and soft, improving the stability and reliability of the entire inclined wedge mechanism during operation.

[0033] In an embodiment, as shown in Figure 1As shown, the number of the buffer parts 60 is set to several; this embodiment can achieve uniform absorption and dispersion of impact force through multi-point distributed layout. The common action of multiple buffer parts 60 can significantly improve the stability and reliability of the buffering effect, avoid the mechanism deflection, vibration or local overload problem caused by uneven stress or failure of single-point buffering, thereby ensuring that the slider stops smoothly and centrally at the end of the stroke regardless of the attitude, further enhancing the impact resistance and running stability of the mechanism.

[0034] In an embodiment, the number of the buffer parts 60 can be two, four or six. The core benefit of using even symmetric arrangement is that it can form a balanced buffer force field around the movement axis of the slider. This symmetric layout ensures that when the slider contacts the baffle 14, its two ends or four sides can be simultaneously subjected to buffer forces of equal size and symmetric direction, effectively avoiding the deflection, jamming or additional torque of the slider caused by uneven buffer force, thereby ensuring that the slider always smoothly decelerates to a stop along a straight line, greatly improving the stability of the buffering effect and the accuracy of the mechanism movement.

[0035] In an embodiment, several buffer parts 60 are arranged in a plurality of concentric circular ring structures, or several buffer parts 60 are arranged in a matrix. The core benefit of this embodiment is that it can build a multi-dimensional balanced buffer force field. The concentric circular ring structure can make the impact force diffuse uniformly along the circumferential direction, which is particularly suitable for bearing the eccentric impact that may have a rotation tendency; while the matrix arrangement can form a crisscross support network in the plane, ensuring that any impact at any position can be effectively absorbed. Both of these two layouts can avoid local stress concentration, significantly improve the fault tolerance and reliability of the buffering system, thereby ensuring that the slider assembly 4 can smoothly and centrally achieve buffering braking under complex working conditions, further enhancing the impact resistance and movement stability of the mechanism.

[0036] In an embodiment, the buffer part 60 can be a polyurethane cushion, a hydraulic buffer or a disc spring set. Using polyurethane cushion can effectively absorb impact energy through the elastic deformation of the material itself, with the advantages of compact structure and low cost; hydraulic buffer can provide more stable and controllable damping buffering effect, which is suitable for high-speed heavy-load working conditions; while disc spring set can provide strong nonlinear buffer force through its high stiffness characteristics. The core purpose of these buffer parts 60 is to convert the rigid collision at the end of the slider movement into smooth deceleration braking in different ways, thereby significantly reducing impact noise and vibration, protecting the mechanism from damage, and improving the smoothness and life of the equipment operation.

[0037] In an embodiment, as shown in FIG. 6, the buffer part 60 can be a polyurethane cushion, a hydraulic buffer or a disc spring set. Figure 1 and Figure 2As shown, the slider assembly 4 includes a slider body 41, the second sliding groove 47 is provided on one side of the slider body 41 towards the lower die plate; a spring mounting seat 42 is provided on one side of the slider body 41 towards the upper die plate, the spring mounting seat 42 is formed on the side away from the slider body 41 as the second butt joint beam 40; a spring assembly is provided on the spring mounting seat 42, the axial direction of the spring assembly is consistent with the length direction of the cavity of the first sliding groove 12, and one end of the spring assembly away from the spring mounting seat 42 is connected with the protrusion.

[0038] The slider assembly 4 in this embodiment adopts a modular structure composed of a slider body 41, a spring mounting seat 42 and a spring assembly, and the core benefit is to realize the integration of the driving and resetting functions. The spring mounting seat 42 not only serves as a butt joint beam guided by the V-shaped guide of the upper slide assembly 1, but also provides a stable mounting foundation for the spring assembly; and the spring assembly with the axial direction consistent with the motion trajectory can provide a reliable resetting force after stamping and continuously give the slider a pre-tightening force pointing to the driving block 7, eliminating the gap between the kinematic pairs. This design not only ensures the continuity and response speed of the mechanism, but also further absorbs the vibration and impact in the motion process through the buffering effect of the spring, thereby significantly improving the dynamic stability, resetting accuracy and service life of the inclined wedge mechanism.

[0039] In one embodiment, the connection mode of the spring mounting seat 42 and the slider body 41 can be integral casting, bolt fastening or dovetail key groove embedded connection. Integral casting can ensure the highest structural rigidity and positional accuracy, avoiding connection loosening; bolt fastening is convenient for assembly, adjustment and maintenance, improving the maintainability of the assembly; and dovetail key groove connection can realize gapless stable fitting, effectively transmitting complex impact load. The core purpose of these connection modes is to ensure that the spring mounting seat 42 and the slider body 41 form a solid whole, providing a stable and reliable support foundation for the spring assembly, thereby ensuring the accurate transmission of the resetting force and the long-term stability of the slider motion trajectory.

[0040] In one embodiment, as Figure 2As shown, the spring assembly comprises: a first spring 43 arranged on the spring mounting seat 42; a spring washer 44 arranged on one end of the first spring 43 away from the spring mounting seat 42; a second spring 45 arranged on one side of the spring washer 44 away from the first spring 43; and a spring guide pin 46 sequentially and movably inserted into the second spring 45, the spring washer 44 and the first spring 43. This embodiment, through the series arrangement of the first spring 43 and the second spring 45, in combination with the intermediate spring washer 44 and the penetrating spring guide pin 46, jointly constructs an elastic return system with high stability and anti-unbalanced load capacity. The spring guide pin 46 ensures that each component always maintains coaxial movement during compression and rebound, effectively preventing spring instability bending; and the spring washer 44 plays a role in uniformly transmitting pressure and preventing stress concentration. This design not only provides smooth and reliable return force, but also significantly enhances the stability of the spring assembly when subjected to complex lateral forces, thereby ensuring that the slider assembly 4 can accurately and smoothly reciprocate along the predetermined trajectory.

[0041] In an embodiment, as shown in Figure 1 The anti-unbalanced load type wedge mechanism further comprises: a reverse wedge puller 8 arranged in a mounting groove 48 arranged on the slider body 41, and movably arranged in a third mating groove 10 arranged on the driving block 7. This embodiment constitutes a reliable mechanical interlocking safety mechanism. Through the sliding fit of the reverse wedge puller 8 in the third mating groove 10, it is ensured that the driving block 7 can forcibly drive the slider assembly 4 to accurately reset through the reverse wedge puller 8 during the return of the upper die, effectively preventing the slider from not being reset or delayed due to inertia, friction or jamming, thereby eliminating the risk of interference or collision of the mold during the closing process, greatly improving the safety and reliability of the continuous operation of the side punching device.

[0042] In an embodiment, the connection mode of the reverse wedge puller 8 and the mounting groove 48 can be T-shaped groove sliding fit, cylindrical guide rod guide or precise sliding pair with linear bearing. The T-shaped groove fit can effectively prevent the reverse wedge puller 8 from being pulled out and bearing moments in all directions, ensuring reliable force transmission; the cylindrical guide rod guide can realize high-precision linear motion and reduce friction loss; and the linear bearing can further reduce the motion resistance and improve the response speed. The core purpose of these connection modes is to ensure that the reverse wedge puller 8 can slide axially relative to the slider body 41 to complete the pullback function, and strictly limit its unnecessary degrees of freedom to ensure the accuracy and reliability of the reset action, thereby improving the working stability and safety of the entire wedge mechanism.

[0043] In an embodiment, as shown in Figure 1As shown, the blocking bar 20 is arranged in the third abutment groove 10, and a fourth abutment groove 30 is formed between the blocking bar 20 and the bottom wall of the third abutment groove 10; a limiting block 9 is arranged on one side of the reverse wedge block 8 facing the second sliding groove 47, and the limiting block 9 is movably arranged in the fourth abutment groove 30. In this embodiment, the blocking bar 20 is arranged in the third abutment groove 10 to form the fourth abutment groove 30, and cooperates with the limiting block 9 on the reverse wedge block 8, and the core benefit is that a precise mechanical limiting mechanism at the end of stroke and overload protection mechanism is constructed. Through the sliding of the limiting block 9 in the fourth abutment groove 30, the maximum relative stroke between the reverse wedge block 8 and the driving block 7 is limited, and component collision or damage caused by overstroke is prevented; and when an abnormal overload occurs, the limiting block 9 and the blocking bar 20 are in rigid contact to transmit and bear the main load, so that the reverse wedge block 8 and other precision components are effectively protected from impact damage, thereby significantly enhancing the working reliability and safety of the reset mechanism.

[0044] In an embodiment, the connecting mode of the blocking bar 20 and the third abutment groove 10 can be high-strength bolt fastening, interference press-fitting after finishing, or integral casting with the driving block 7. The high-strength bolt fastening is convenient for adjustment, maintenance and replacement, and ensures the flexibility of assembly; the interference press-fitting can realize stable connection without gap, and ensures accurate limiting precision; and the integral forming with the driving block 7 can obtain the highest structural strength and rigidity, and fundamentally avoids connection loosening. The core purpose of these connection modes is to firmly and accurately fix the blocking bar 20 in the third abutment groove 10, so that the blocking bar 20 can reliably bear the impact force generated by the limiting block 9 at the end of stroke, thereby ensuring the effectiveness of the limiting function and the stability of long-term operation of the mechanism.

[0045] In an embodiment, the connecting mode of the limiting block 9 and the reverse wedge block 8 can be sink head screw fixing, dovetail slot embedding, or integral forming with the reverse wedge block 8. The sink head screw fixing is convenient for installing and adjusting the position of the limiting block 9 to adapt to different stroke requirements; the dovetail slot embedding can realize stable connection without gap, and effectively resists impact load; and the integral forming with the reverse wedge block 8 can ensure the highest structural rigidity and position precision, and avoid limiting failure caused by connection loosening. The core purpose of these connection modes is to firmly and accurately fix the limiting block 9 on the reverse wedge block 8, so as to form a shock-resistant rigid stopper, thereby accurately limiting the stroke when contacting with the blocking bar 20, reliably transmitting the overload force, and guaranteeing the safety and durability of the reset mechanism.

[0046] In an embodiment, as shown in FIG. 6, the limiting block 9 is arranged in the fourth abutment groove 30, and the limiting block 9 is movably arranged in the fourth abutment groove 30. Figure 1As shown, the first guide plate assembly comprises: a first sliding guide plate 2 arranged in the first sliding groove 12; and a second sliding guide plate 3 arranged in the first sliding groove 12, an extension line of the second sliding guide plate 3 intersects with an extension line of the first sliding guide plate 2, so that the second sliding guide plate 3 and the first sliding guide plate 2 form the first V-shaped structure. In this embodiment, the first guide plate assembly is designed as a first sliding guide plate 2 and a second sliding guide plate 3 which are separate and combined into a first V-shaped structure by intersecting their extension lines. The core benefit is to realize a high-precision and adjustable V-shaped guide surface. Such a separate structure not only facilitates the precision manufacturing, heat treatment and individual replacement of the single guide plate after wear, thereby reducing the manufacturing and maintenance costs, but more importantly, by independently installing and adjusting the two guide plates, the angle and symmetry of the V-shaped opening can be accurately controlled, thereby ensuring the optimal surface contact and force distribution with the second docking beam 40, maximizing the performance of the V-shaped structure in automatic centering and anti-unbalanced load, and significantly improving the guiding precision and service life of the mechanism.

[0047] In an embodiment, the connection between the first sliding guide plate 2 and the first sliding groove 12 can be a countersunk screw fastening, an inlaid dovetail joint or a high-strength adhesive bonding. The countersunk screw fastening facilitates the installation, adjustment and replacement of the guide plate, ensuring the adjustability of assembly and the convenience of maintenance; the inlaid dovetail joint can achieve a gapless and stable fitting, effectively resisting shear force and ensuring positioning accuracy during long-term use; and the high-strength adhesive bonding can achieve full-surface stress distribution, avoiding local stress concentration. The core purpose of these connection methods is to firmly and accurately fix the first sliding guide plate 2 in the first sliding groove 12, forming a stable and wear-resistant V-shaped guide slope, thereby ensuring that the sliding block assembly 4 can move smoothly and accurately along the predetermined trajectory for a long time.

[0048] In an embodiment, the connection between the second sliding guide plate 3 and the first sliding groove 12 can be a countersunk screw fastening, an inlaid dovetail joint or a high-strength adhesive bonding. The countersunk screw fastening facilitates the independent installation and angle fine-tuning of the guide plate, ensuring the accurate symmetry of the V-shaped opening; the inlaid dovetail joint can achieve a gapless and rigid connection, effectively resisting lateral impact force; and the high-strength adhesive bonding can uniformly distribute stress, avoiding interference of the connecting piece with the working surface of the guide plate. The core purpose of these connection methods is to make the second sliding guide plate 3 and the first sliding guide plate 2 cooperatively form a high-precision and stable V-shaped guide track, jointly constrain the movement trajectory of the sliding block assembly 4, thereby significantly improving the anti-unbalanced load capacity and movement stability of the mechanism.

[0049] In an embodiment, the first sliding guide plate 2 and the second sliding guide plate 3 can be arranged in mirror symmetry with the center line of the first sliding groove 12 as the axis of symmetry. The core benefit of this symmetrical arrangement is that a completely balanced V-shaped guide force field can be formed around the movement axis of the slider. It ensures that the guide constraint force and the support reaction force on the two sides of the second butt beam 40 during movement always remain equal in size and symmetric in direction, thereby fundamentally eliminating the uneven load, torsion or one-sided wear caused by uneven force, maximizing the automatic centering characteristics of the V-shaped structure, and ensuring that the slider assembly 4 always moves smoothly and accurately along the preset inclined trajectory.

[0050] In an embodiment, as shown in Figure 1 The second guide plate assembly includes a third sliding guide plate 5 arranged in the second sliding groove 47, and a fourth sliding guide plate 6 arranged in the second sliding groove 47. The extension line of the fourth sliding guide plate 6 intersects the extension line of the third sliding guide plate 5, so that the fourth sliding guide plate 6 and the third sliding guide plate 5 form the second V-shaped structure.

[0051] In an embodiment, the connection mode of the third sliding guide plate 5 and the fourth sliding guide plate 6 with the second sliding groove 47 can be consistent with the connection mode of the first sliding guide plate 2 and the second sliding guide plate 3 with the first sliding groove 12, which will not be described here.

[0052] The working principle of the present application is as follows: In the normal working state of the spring assembly, the reset process of the slider body 41 is mainly driven by its elastic potential energy. When the stamping stroke is completed, the upper die plate starts to return, driving the slide assembly 1 fixed thereto to move upward. At this time, the spring assembly (including the first spring 43, the second spring 45 and the spring guide pin 46) that was compressed during the stamping process begins to release energy, and its restoring force acts in the axial direction consistent with the inclination direction of the first sliding groove 12, continuously acting on the spring mounting seat 42 of the slider assembly 4. This force pushes the entire slider assembly 4 to slide stably along the precise guide rail composed of the first guide plate assembly and the second butt beam 40 away from the upper die (i.e. towards the drive block 7), until the slider assembly 4 is completely reset to the initial position, ready for the next stamping cycle. This process is mainly driven by the spring, with the advantages of rapid response, smooth movement and small impact.

[0053] When the spring assembly is damaged by unexpected breakage or failure, a set of independent mechanical forced reset mechanism will be activated immediately as a safety redundancy to ensure the reliable reset of the slider body 41. The core of this mechanism lies in the cooperation of the anti-wedge pull block 8, the limiting block 9 and the blocking bar 20 and the fourth interface groove 30 on the driving block 7. When the upper die plate is back to the upstroke and the slider is stranded due to the loss of spring thrust, the blocking bar 20 fixed on the driving block 7 remains stationary. Since the anti-wedge pull block 8 is connected to the slider body 41 through the mounting slot 48, the limiting block 9 on it also sinks. As the upper die plate continues to rise, the third interface groove 10 on the upper end of the anti-wedge pull block 8 will be in contact with the protruding part on the driving block 7, or more directly, the limiting block 9 will be engaged with the sidewall of the fourth interface groove 30 formed by the blocking bar 20 and the bottom wall of the third interface groove 10. The continued upward movement causes the blocking bar 20 to generate an upward pulling force on the limiting block 9 through the fourth interface groove 30, which forcibly drags the entire slider assembly 4 to overcome the frictional resistance along the guide rail to reset safely. This mechanical interlocking design fundamentally eliminates the risk of mold collision caused by reset failure, providing essential safety guarantee.

[0054] In view of the problems of the prior art, the embodiment of the present application also provides a side stamping device, which comprises an upper die plate and a lower die plate, and the anti-bias load type inclined wedge mechanism arranged between the upper die plate and the lower die plate. The embodiment injects the entire device with high-precision and high-reliability side stamping capability. Through the unique V-shaped guide plate system, the vertical movement of the upper die is accurately and stably converted into the horizontal or inclined movement of the slider, effectively solving the problems of bias load, wear and precision fluctuation in the traditional side stamping device, thereby significantly improving the forming quality consistency of the stamped parts, the service life of the mold and the safety and stability of the equipment operation.

[0055] Although the embodiments of the present application are described in detail above, it is obvious for those skilled in the art that various modifications and changes can be made to the embodiments. However, it should be understood that such modifications and changes are within the scope and spirit of the present application. Moreover, the present application described herein can have other embodiments, and can be implemented or realized in various ways.

Claims

1. An anti-tilt wedge mechanism, characterized by, The utility model relates to a moulding machine, including: The slide assembly is equipped with the first sliding groove in the side away from the upper die plate, and the length direction of the cavity of the first sliding groove is arranged to be inclined downward from the upper die plate to the lower die plate; The first guide plate assembly is arranged in the first sliding groove, and the first V-shaped structure is adapted to the length direction of the cavity of the first sliding groove; The slider assembly is provided with the second butt joint beam on the side close to the upper die plate, the second butt joint beam is adapted to the direction of the first V-shaped structure, and the second butt joint beam is respectively attached to the two side walls of the first V-shaped structure, the slider assembly is provided with the second sliding groove on the side close to the lower die plate, and the length direction of the cavity of the second sliding groove is arranged to be inclined upward from the lower die plate to the upper die plate; The second guide plate assembly is arranged in the second sliding groove, and the second V-shaped structure is adapted to the length direction of the cavity of the second sliding groove; The driving block is arranged on the lower die plate, and the first butt joint beam is arranged on the side away from the lower die plate, the first butt joint beam is adapted to the direction of the second V-shaped structure, and the first butt joint beam is respectively attached to the two side walls of the second V-shaped structure.

2. The anti-tilt wedge mechanism of claim 1, wherein The slide assembly includes: The slide body is fixedly arranged on the upper die plate, and the protrusion is extended from the side away from the upper die plate to the direction away from the upper die plate; The side plate is arranged on the slide body, and the two side plates are symmetrically arranged about the protrusion; The baffle is arranged on the slide body, and the protrusion, the baffle and the two side plates form the first sliding groove.

3. The anti-tilt wedge mechanism of claim 2, wherein The slide assembly further includes: The limiting strip is arranged on the side of the side plate towards the first sliding groove, and the length direction of the limiting strip is adapted to the length direction of the cavity of the first sliding groove; The guiding groove is arranged on the second butt joint beam, the limiting strip is movably arranged in the guiding groove, so that the slider assembly and the slide assembly are connected as a whole, and the slider assembly is guided to move along the length direction of the cavity of the first sliding groove relative to the slide assembly.

4. The anti-tilt wedge mechanism of claim 2, wherein It further includes: The buffer part is arranged on the baffle at one end and on the second butt joint beam at the other end, and the number of buffer parts is arranged to be several; The several buffer parts arrange a plurality of concentric ring structures, or the several buffer parts are arranged in a matrix.

5. The anti-tilt wedge mechanism of claim 4, wherein The slider assembly includes: The second sliding groove is arranged on the side of the slider body towards the lower die plate; The spring mounting seat is arranged on the side of the slider body towards the upper die plate, and the second butt joint beam is formed on the side away from the slider body of the spring mounting seat; The spring assembly is arranged on the spring mounting seat, the axial direction of the spring assembly is consistent with the length direction of the cavity of the first sliding groove, and one end of the spring assembly away from the spring mounting seat is connected with the protrusion.

6. The anti-tilt wedge mechanism of claim 5, wherein The spring assembly includes: The first spring is arranged on the spring mounting seat; A spring washer is arranged on one end of the first spring away from the spring mounting seat; A second spring is arranged on one side of the spring washer away from the first spring; A spring guide pin is sequentially movably inserted into the second spring, the spring washer and the first spring.

7. The anti-tilt wedge mechanism of claim 6, wherein, Further comprising: A reverse wedge draw block is arranged in a mounting groove arranged on the slider body, and movably arranged in a third butt joint groove arranged on the driving block; A blocking strip is arranged in the third butt joint groove, and a fourth butt joint groove is formed between the blocking strip and the bottom wall of the third butt joint groove; A limiting block is arranged on one side of the reverse wedge draw block facing the second sliding groove, and movably arranged in the fourth butt joint groove.

8. The bias-resistant wedge mechanism of claim 1, wherein The first guide plate assembly comprises: A first sliding guide plate is arranged in the first sliding groove; A second sliding guide plate is arranged in the first sliding groove, and the extension line of the second sliding guide plate intersects with the extension line of the first sliding guide plate, so that the second sliding guide plate and the first sliding guide plate form the first V-shaped structure.

9. The bias-resistant wedge mechanism of claim 1, wherein, The second guide plate assembly comprises: A third sliding guide plate is arranged in the second sliding groove; A fourth sliding guide plate is arranged in the second sliding groove, and the extension line of the fourth sliding guide plate intersects with the extension line of the third sliding guide plate, so that the fourth sliding guide plate and the third sliding guide plate form the second V-shaped structure.

10. A side-punching device characterized by comprising: The anti-bias load type wedge mechanism comprises an upper die plate and a lower die plate, and the anti-bias load type wedge mechanism as claimed in any one of claims 1 to 9 is arranged between the upper die plate and the lower die plate.

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