Multi-group single-action plane wedge type crimping machine

Abstract

The invention relates to a multi-group single-action plane wedge type crimping machine, and belongs to the technical field of crimping machines. A multi-group single-action plane wedge type crimping machine is characterized by comprising a single linear reciprocating power source, a balanced component force device, a sliding compensation type plane wedge direction changing device, a centripetal tightening and centrifugal opening working assembly and other necessary matched parts. Compared with an existing machine type, the multi-group single-action plane wedge type crimping machine has the advantages of being high in precision, longer in service life, more reliable in work and relatively low in cost.

Description

Technical Field

[0001] This invention relates to a multi-group single-acting planar wedge crimping machine, belonging to the field of crimping machine technology. Background Technology

[0002] A crimping machine is a tube (bar) diameter reduction device, widely used in hydraulic, electric, hardware, machinery, pipeline and other fields. In essence, it belongs to a special cold forging pressing equipment.

[0003] I. Practical Applications of Crimping Machines A crimping machine, also called a tube crimping machine or tube shrinking machine, is used to crimp tubes. Here are a few typical application examples to illustrate its specific uses: 1. Pressure connection between hydraulic hose and metal fitting.

[0004] 2. Pressure connection between copper wire lugs (or connectors) and electrical wires in the power industry.

[0005] 3. Reduction (diameter) of steel pipes (or other metal pipes or bars) in industries such as pipelines, machinery, construction, and hardware.

[0006] II. Detailed analysis of the working principle of the crimping machine.

[0007] The working principle of the crimping machine is analyzed below, taking the pressure connection between the hydraulic hose and the metal connector as an example.

[0008] Appendix Figure 1 This is to assemble the hydraulic hose and metal fittings that have not yet been crimped (locked). 101 is the hydraulic hose, 102 is the metal outer sleeve, 103 is the metal inner sleeve, and 104 is the lock nut for the hose fitting.

[0009] If you want to attach Figure 1 The hydraulic hose in the middle must be tightly bonded to the metal inner and outer sleeves, and must: 1. Apply appropriate pressure to the metal jacket 102 in the radial direction.

[0010] 2. The pressure should be applied as evenly as possible around the 360-degree radial circumference of the metal jacket. Ideally, it should be distributed in at least three segments (i.e., dividing the 360-degree circumference into three segments, each approximately 120 degrees). The more segments the radial pressure is applied, the more reasonable the force and the better the crimping quality. Most models on the market divide the 360-degree circumference into eight segments, with each segment crimping at a 45-degree angle.

[0011] 3. The circumferentially distributed pressure should be strictly centripetally synchronized in the radial direction of the tube (rod) workpiece being processed.

[0012] In summary, it's easy to see that a crimping machine is a mechanical device that converts mechanical force (including electromagnetic and hydraulic) into multiple synchronous, circumferentially distributed radial pressures that are aligned with the radial direction of the crimped tube (bar). Because the main die of a crimping machine only undergoes two reciprocating movements—centrifugal tightening and centrifugal opening—a linear reciprocating power source simplifies the equipment structure. Therefore, most existing crimping machines use hydraulic or pneumatic cylinders for power. While choosing a non-linear reciprocating power source can achieve the intended function of a crimping machine, it inevitably complicates the equipment structure, making it undesirable.

[0013] In other words, the existing crimping machines (the vast majority) are mechanical devices that transform one linear reciprocating motion into N synchronous centripetal tightening and centrifugal opening motions.

[0014] Currently, there are many types of crimping machines popular in domestic and international markets, but large (heavy) crimping machines mainly come in two types: multi-group single-acting tapered sleeve crimping machines and multi-group interactive planar wedge crimping machines. The former is mostly a horizontal machine with horizontally arranged hydraulic cylinders (or air cylinders) (hereinafter referred to as the first-generation crimping machine), while the latter is mostly a vertical machine with vertically arranged hydraulic cylinders (or air cylinders) (hereinafter referred to as the second-generation crimping machine, which is the most advanced ultra-thin crimping machine on the market now).

[0015] Appendix Figure 2 This is a schematic diagram of a typical first-generation crimping machine. 201 is the cylinder barrel; 202 is the cylinder end cap (two pieces in total); 203 is the hollow, irregularly shaped cylinder rod; 204 is the cylinder piston; 205 is the main working module (eight evenly distributed around the circumference, only the two symmetrically arranged ones are shown in the diagram); 206 is the auxiliary working module, i.e., a quick-release, replaceable module head, allowing for the replacement of different module heads when crimping different types of tubular (rod) workpieces. Existing practical models incorporate floating compression springs between the eight main molds (see attached diagram). Figure 2 (Not shown) so that the eight main working modules can be in a reasonable pre-working position even when not subjected to crimping load.

[0016] The second-generation crimping machine and the new crimping machine provided by this invention also have quick-plug replaceable module heads and floating compression springs. Their principles and working methods are basically similar, and will not be described in detail below.

[0017] The following is in conjunction with the appendix Figure 2 Briefly explain the working principle and process of the first-generation crimping machine: Appendix Figure 2 Supported by the compression springs arranged between the eight main working modules 205, their near-circumferential tapered arc surfaces are tightly attached to the tapered inner hole of the right half of the cylinder barrel 201.

[0018] The eight main working modules 205, pushed (or pulled) by the right (or left) end face of the hollow irregular-shaped hydraulic cylinder rod 203, can simultaneously perform a cyclical, synchronous centripetal tightening and centrifugal separating motion while reciprocating left and right, thus performing pressure processing on a tubular (rod) shaped workpiece placed in advance at the center position. Automatic control is achieved by reading data from external pressure sensors (such as electrical contact pressure gauges) or position sensors (such as optical encoders), enabling the pressing and processing of workpieces with the expected pressure or size.

[0019] In summary, the following points are readily apparent: 1. The aforementioned eight main working modules operate independently and do not interfere with each other significantly. That is, each of the eight main working modules independently bears the pushing (pulling) force from the hollow irregular-shaped cylinder rod 203 and the reaction force (constraint force) from the tapered sleeve inside the right half of the cylinder barrel. If the effect of the floating compression springs between the main working modules is ignored, the eight main working modules can be considered to operate independently, i.e., single-acting.

[0020] 2. The movement trajectory of the 8 main working modules is not a simple radial-centripetal motion, but rather a combination of centripetal and horizontal movement. This inevitably leads to difficulties in material positioning during the actual crimping process, and also determines that this type of machine cannot use extremely high crimping speeds. Otherwise, operators would not be able to make accurate judgments during material loading, and there is even a possibility of safety accidents. In other words, this structure determines that the working speed of the first-generation crimping machine must be very low.

[0021] 3. The structure of the first-generation crimping machine makes it difficult to manufacture an open-type model; only a circumferentially enclosed model is possible. Enclosed crimping machines cannot process extremely long workpieces (such as crimping the ends of two cable reels together when laying cables in the field) or irregularly shaped tubular workpieces (such as hydraulic pipes with 90-degree right-angle bends at both ends), or at least will be very difficult to operate. This seemingly insignificant inherent defect can be fatal in certain specialized applications.

[0022] 4. Appendix Figure 2 In the actual left-right sliding process of the eight main working modules 205, it is difficult for their near-circumferential outer tapered arc surface to achieve the ideal surface contact with the inner tapered arc surface of the right half of the cylinder barrel 201; instead, they are mostly in line contact. That is, surface contact is only possible at the theoretical mating point. This structure inevitably leads to accelerated wear of the sliding parts, thus affecting the accuracy and service life of the equipment. This inherent design flaw is the fundamental reason why the first-generation crimping machine cannot achieve extremely high precision and extremely long service life.

[0023] The first-generation crimping machine has an extremely simple structure and very low manufacturing cost, which is the fundamental reason why this model has dominated the market for a long time since its introduction.

[0024] Appendix Figure 3 This is a schematic diagram of a typical second-generation crimping machine. 301 is the main frame; 302 is a vertically arranged hydraulic cylinder, screwed to the bottom of the frame; 303 is a sliding base, its left and right sides connected to the friction surfaces of the inner walls of the frame via sliding friction pairs, and its lower end face midpoint screwed to the end of the cylinder rod. Driven by the hydraulic cylinder 302, the sliding base 303 can slide vertically up and down, thereby driving the D, E, and F (three out of eight main working modules) of the main working modules 304 on the sliding base to reciprocate up and down. Main working module E is screwed to the upper end face of the sliding base 303, and main working modules D and F are connected to the friction surfaces inside the main frame 301 and the 45-degree inclined sliding friction surfaces on the left and right sides of the upper end face of the sliding base 303 respectively via their side sliding friction pairs. (Attached) Figure 3 The A component of the main working module is screwed to the lower end face of the upper part of the main frame 301. The B, C, G, and H components of the main working module have friction pairs on their sides near the main frame 301, connecting to the friction surfaces of the inner side of the main frame or to the friction surfaces of adjacent main working modules. (See attached image.) Figure 3 305 in the diagram is the secondary working module (i.e., a quick-plug replaceable module head, of which there are 8 in the diagram); 306 is the high-hardness wear-resistant plate (of which there are 4 in the diagram).

[0025] The practical second-generation crimping machine has a center-opening limiting cover plate on each of the front and rear sides (two sides parallel to the drawing plane) of the eight main working modules. Similar to the first-generation crimping machine, floating compression springs are also installed between the eight main working modules to constrain their degrees of freedom and achieve the desired centripetal tightening (centrifugal opening) movement. The floating compression springs and limiting cover plates are attached... Figure 3 It is not shown in the middle.

[0026] The working principle and process of the second-generation crimping machine are briefly explained below: Appendix Figure 3The process of the eight main working modules achieving radial centripetal tightening motion is as follows: Under the drive of the hydraulic cylinder 302, the vertically upward thrust output by the sliding base 303 is transmitted through the upper end surface of the sliding base to the main working modules D, E, and F arranged thereon. This causes the main working module E, which is screwed to the sliding base, to move vertically upward, i.e., the main working module E performs radial centripetal tightening motion in a single direction (vertically upward). Simultaneously, driven by the combined force of the 45-degree inclined sliding slope on both sides of the upper end of the sliding base and the elastic force of the floating compression springs arranged between the main working modules, the main working modules D and F will perform compound motion in two directions: 1. Vertical upward motion. 2. The main working modules D and F will slide downward along the 45-degree inclined slope on both sides of the upper end of the sliding base. It should be emphasized that this compound motion of the main working modules D and F in two directions can achieve a relatively ideal radial centripetal tightening motion. Similarly, through the combined action of the spring force arranged between the main working modules and the supporting force of the 45-degree inclined friction surface at the upper end of the main frame 301 (including the inclined friction surface on the main working modules), the upward thrust output by the hydraulic cylinder will ultimately indirectly drive the upper main working modules B, C, G, and H, enabling the main working modules B, C, G, and H to achieve a composite movement in two directions similar to that of the aforementioned main working modules D and F. That is, during the upward push of the hydraulic cylinder, except for the main working modules A and E, which are screwed to their upper and lower ends and perform a single-direction radial-centripetal tightening movement, the other six main working modules all perform a composite radial-centripetal tightening movement in two directions.

[0027] During the downward movement of the hydraulic cylinder, the process of the 8 main working modules opening centrifugally is the opposite of the aforementioned process. The difference is that during the centrifugal opening process, the 8 main working modules return to their initial working position (when the hydraulic cylinder is moving downward) by the elastic force of the floating spring.

[0028] As mentioned above, it is not difficult to see the appendix Figure 3 The second-generation crimping machine has the following features: 1. Appendix Figure 3 Of the eight main working modules, only A and E work independently. The other six main working modules transmit power to each other, meaning that the main working modules influence each other. This influence is not only reflected in the mutual transmission of power, but also in the mutual influence of working accuracy and displacement accuracy, i.e., an interactive relationship.

[0029] This structure leads to an extremely serious problem: if any one of the components related to the motion accuracy of the main working module loses or fails to meet the accuracy standard, a chain reaction will occur, causing the motion trajectory of other related components to deviate from the designed ideal trajectory, resulting in severe wear and loss of accuracy. Once this wear occurs, it will intensify and quickly cause all components of the entire equipment to completely lose accuracy.

[0030] To achieve good quality in the second-generation crimping machine, implementing such a design requires extremely stringent requirements on materials and manufacturing precision.

[0031] Even the second-generation crimping machines manufactured by relevant manufacturers in developed Western countries at any cost cannot achieve a very long service life. Moreover, due to the relentless pursuit of high-end materials and manufacturing precision, the cost of imported second-generation crimping machines is high, making them unaffordable for most users.

[0032] 2. The wear on the eight main working modules is uneven. Specifically, the top and bottom main working modules A and E are bolted together, and their sides near the frame (or near the sliding base) show no sliding wear during operation. However, the other six main working modules all show sliding wear on their sides near the frame (or sliding base) during operation. Although many second-generation crimping machines have undergone design improvements, their basic structure and auxiliary components... Figure 3 The typical structure is still largely the same. Uneven wear of the main working module is common in all second-generation crimping machines, including the latest second-generation crimping machines from internationally renowned brands, such as Finn Power from Finland.

[0033] 3. This design structure makes lubrication difficult, making it hard to ensure that all worn parts are fully lubricated.

[0034] 4. Unlike the first-generation crimping machine, the centrifugal tightening and centrifugal opening are achieved by sliding on a wedge-shaped plane. This surface contact sliding friction is much better than the line contact sliding friction of the first-generation crimping machine.

[0035] 5. Its radial-to-central tightening motion trajectory is more ideal, unlike the first-generation crimping machine which has horizontal movement accompanying the centripetal tightening motion. In actual operation, the feeding point position is fixed, which makes it easier for operators to accurately judge the feeding position and improve the feeding speed and accuracy. The equipment uses extremely high working speed (i.e., uses a hydraulic oil pump with a large output flow) and is not prone to safety accidents. This is the fundamental reason for the high efficiency of the second-generation crimping machine.

[0036] 6. The structure of the second-generation crimping machine has been appropriately improved, and it can be made into a side-opening model, which is convenient for processing extremely long workpieces or irregularly shaped workpieces with bends. This advantage is unmatched by the first-generation crimping machine.

[0037] In summary, first-generation crimping machines are inefficient, difficult to operate, have moderate accuracy, and a medium lifespan. However, they do not have very high requirements for materials and manufacturing precision, making them inexpensive and suitable for small-batch production. Second-generation crimping machines, on the other hand, are highly efficient, easy and quick to operate, and achieve a higher level of accuracy, making them suitable for the high-efficiency and high-quality requirements of today's large-scale industrial era. However, their lifespan is extremely short, and achieving a moderate lifespan requires stringent requirements for materials and manufacturing precision. Currently, they cannot be domestically produced, and their price is extremely high.

[0038] In short, the first and second generation crimping machines currently popular on the market can be summarized in two sentences: the first generation crimping machine is affordable but not easy to use. The second generation crimping machine is easy to use but unaffordable.

[0039] III. Analyze existing problems and propose solutions. The reason for the aforementioned unsatisfactory situation is mainly due to the flawed design principles of the first and second generation crimping machines, and has little to do with materials and manufacturing level.

[0040] The advantages and disadvantages of the first and second generation crimping machine design schemes will be discussed below from the perspective of design principles: As mentioned earlier, the basic requirement for completing the intended crimping process is that the working parts of the crimping machine can achieve periodic, strictly synchronized, radial tightening and centrifugal opening movements.

[0041] Under the current technological background, there are essentially two relatively simple ways to achieve the aforementioned expected motion: 1. N linear reciprocating power sources synchronously drive N corresponding centripetal tightening and centrifugal opening working parts. 2. One linear reciprocating power source, after equalizing force distribution and changing direction, drives N corresponding centripetal tightening and centrifugal opening working parts respectively (N≥3, N≤8).

[0042] The first approach described above aims to achieve strictly synchronized operation using N linear reciprocating power sources. This is not only technically challenging, but also very costly, and the synchronization accuracy may not meet the usage requirements. Therefore, the second approach is the only viable option among the two feasible design approaches. In fact, the vast majority of first and second generation crimping machines (including the new crimping machine provided by this invention) are products of the second design concept.

[0043] Its design principle block diagram is as follows: Single linear reciprocating power – balanced force component – ​​change of direction – clamping operation The significance of the aforementioned balanced force component is: to divide the single linear reciprocating force into N linear reciprocating forces. The significance of the aforementioned direction change is: to transform the N reciprocating push-pull forces in the linear direction after equalization into N strict radial-centripetal tightening forces and centrifugal opening forces. The significance of the aforementioned clamping operation is: N balanced, synchronous, radial linear reciprocating forces respectively drive N working parts to perform clamping operations (N≥3, N≤8).

[0044] The first and second generation crimping machines and the new crimping machine provided by this invention are all designed according to the above design principle block diagram. The difference is that: The first-generation crimping machine integrates the latter two functions into one (or one group of) component, and its design principle block diagram becomes as follows: Single linear reciprocating power – balanced force component – ​​changing direction and clamping operation The second-generation crimping machine integrates the latter three functions into one (group) of components. Its design principle block diagram is as follows: Single linear reciprocating power – balanced force component, direction change, and clamping operation Integrating many functions of the equipment into one (or a group of) components, as in the first and second generation crimping machines, has both advantages and disadvantages.

[0045] Its advantages are: functional integration design can simplify the equipment structure, reduce manufacturing costs, and the higher the integration, the greater the cost reduction.

[0046] Its drawbacks are that it is difficult to fully consider all the integrated functions, let alone make all the integrated functions optimal. At most, it can only make one of the integrated functions reach a better state, but at the same time, it will inevitably weaken the other integrated functions. Moreover, the higher the degree of integration, the more severely some functions are weakened. The more prominent a single function is, the more other functions will inevitably be weakened. In other words, you will lose one thing if you focus on one thing, and you will lose the other if you focus on the other.

[0047] When faced with this design philosophy, the role of engineering designers is actually very limited. That is, the process of demonstrating a design scheme is first and foremost a process of accepting its shortcomings, rather than a process of selecting its advantages.

[0048] For example, the first-generation crimping machine integrated the latter two functions in the above design principle block diagram into a single set of components, resulting in weakened conversion capabilities and consequently low efficiency. However, this seemingly flawed choice today is not a disadvantage for the historically significant first-generation crimping machine; rather, it should be considered an advantage. When the first-generation crimping machine was first introduced, its production tasks were mostly small-batch and sporadic. The pioneers of the first-generation crimping machine wisely sacrificed efficiency for a classic, low-cost model suitable for that era. Even years after the more efficient and adaptable second-generation crimping machine was introduced, the first-generation crimping machine still holds a major market share, demonstrating the rigor of its design philosophy. Especially considering that this ancient model has been meticulously refined by generations of engineers, its design potential has been maximized.

[0049] The second-generation crimping machine also adopts a functional integration design, integrating the latter three functions into a single set of components. The advantages of this design are significant, such as an extremely streamlined and lightweight structure and minimal space occupation. Second-generation crimping machines on the market are indeed marketed with "lightweight" and "ultra-thin" as key selling points. However, this highly integrated structure is more suitable for light-load or near-zero-load applications where there are strict limitations on machine size and weight (such as plastic molds), while crimping machines operate under heavy loads. Furthermore, crimping machines are independent devices; their primary design requirements are superior functionality and lower cost, with little strict control over weight and size. In other words, the advantages of small size and light weight brought by the highly integrated design are unnecessary for the second-generation crimping machine, while its unsuitability for heavy loads is fatal. This flawed design philosophy resulted in a highly unreasonable transmission structure for the second-generation crimping machine. Under heavy loads, the machine suffered severe wear. Made with ordinary materials and conventional processes, the second-generation crimping machine had a normal service life of less than a year before losing its precision. However, the design flaws were compensated for with the most advanced materials and extremely high machining precision. Ultimately, the highly integrated second-generation crimping machine not only failed to achieve the goal of low manufacturing costs, but also increased the manufacturing and maintenance costs of the equipment several times over.

[0050] In short, the first-generation crimping machine was an excellent model for its time and successfully fulfilled its mission. The second-generation crimping machine, unlike the first generation, did not undergo the rigorous design screening process, leading to fundamental flaws in its design. The end result was that while the first-generation crimping machine, suitable for sporadic or small-batch production, was inexpensive, its low efficiency made it unsuitable for today's large-scale industrial demands. Conversely, the highly efficient and versatile second-generation crimping machine, due to its high cost, deterred most users and thus lacked the capacity to replace the first-generation crimping machine.

[0051] Looking at the domestic and international crimping machine market, besides the inefficient first-generation crimping machines, the remaining options are the expensive second-generation crimping machines. Currently, the market urgently needs a new model that is low-cost, reliable, and highly accurate. Summary of the Invention

[0052] The purpose of this invention is to provide a multi-group single-acting planar wedge crimping machine to solve the above-mentioned technical problems.

[0053] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A multi-unit single-acting planar wedge crimping machine includes a single linear reciprocating power source, a balanced force distribution device, a sliding compensation planar wedge reversing device, a centrifugal tightening and centrifugal opening working assembly, and other necessary supporting components.

[0054] A further improvement to the technical solution of the present invention is as follows: the force-sharing device is a disc-shaped or regular N-sided device with two parallel end faces. One of the two parallel end faces is the force-receiving end face, and the other end face, which is parallel to it, is the force-sharing end face. The perpendicular line from the center point of the two parallel end faces of the disc-shaped or regular N-sided device is the reference central axis of the host. The center point of the force-receiving end face receives a linear reciprocating driving force from the aforementioned linear reciprocating power source and is perpendicular to the force-receiving end face. The aforementioned force-sharing end face transforms the obtained single linear reciprocating driving force and divides it equally into N linear reciprocating driving forces that are strictly parallel to the aforementioned reference central axis and are distributed equally and strictly equal along the radial circumference of the force-sharing end face with the intersection of the aforementioned reference central axis and the force-sharing end face as the center. The aforementioned force-sharing end face transmits the transformed and equally divided N linear reciprocating driving forces to the corresponding next-level sliding compensation planar wedge direction-changing device that slides with the end face.

[0055] A further improvement to the technical solution of this invention is as follows: the sliding compensation type planar wedge reversing device mainly includes N sliding compensation type planar wedge reversing plates and N backrest type limiting plates; and the N sliding compensation type planar wedge reversing plates and the N backrest type limiting plates are all evenly distributed in a centripetal or radial pattern on a circle perpendicular to the reference center axis and centered at a point on the reference center line; wherein the sliding compensation type planar wedge reversing plate is a right-angled triangular plate, the hypotenuse side end face of the right-angled triangular plate is on the side close to the reference center axis, and the long right-angle side end face of the right-angled triangular plate is on the side far from the reference center axis and is connected to the aforementioned balanced force distribution device. The force-contributing end face of the right-angled triangle plate is perpendicular, and the perpendicular line from the center of the long right-angled side end face of the right-angled triangle plate points to the reference central axis. The short right-angled side end face of the right-angled triangle plate is in contact with and elastically connected to the force-contributing end face of the aforementioned equalizing force-contributing device, forming a sliding friction pair at the connection surface. This allows the transmission of the linear reciprocating drive force from the force-contributing end face of the aforementioned equalizing force-contributing device, causing the right-angled triangle-shaped sliding compensation planar wedge deflector plate to also perform linear reciprocating motion. Furthermore, the two sides of the right-angled triangle plate are in contact with the two sides of the pre-machined rectangular groove on the main frame plate, forming a sliding friction pair to limit the three... The spatial freedom of the angular sliding compensation planar wedge deflector plate allows it to move strictly along a linear reciprocating motion trajectory. The backrest-type limiting plate is a rectangular plate that is inserted or screwed to a pre-added long slot on the primary and secondary frame positioning plates of the main unit. The primary and secondary frame positioning plates are circular or regular polygonal in shape, and the circular or regular N-sided planes on both sides of the primary and secondary frame positioning plates are parallel to the reference radial plane. The side end face with the largest area of ​​the rectangular plate is in contact with the side end face of the long right-angled side of the right triangle of the aforementioned sliding compensation planar wedge deflector plate to form a sliding friction pair. Furthermore, each of the N sliding compensation type planar wedge-shaped deflector plates corresponds one-to-one with one of the N backrest type limiting plates; the side end face with the smallest area of ​​the rectangular plate is parallel to the force component end face of the aforementioned equalizing force component device; when the sliding compensation type planar wedge-shaped deflector plate is subjected to a force away from the reference axis, the side end face of the short right-angled side of the right triangle of the sliding compensation type planar wedge-shaped deflector plate can slide along the force component end face of the aforementioned equalizing force component device that is in contact with it in a direction away from the reference axis until the side end face of the long right-angled side of the right triangle of the sliding compensation type planar wedge-shaped deflector plate is in contact with the friction end face of the corresponding aforementioned backrest type limiting plate.

[0056] A further improvement to the technical solution of this invention is as follows: the centripetal tightening and centrifugal opening working assembly consists of N centripetal or radially distributed single-wing centripetal (centrifugal) planar sliding plates and auxiliary sliding friction pairs on a circumference perpendicular to the reference center axis and centered at a point on the reference center line; the main body of the single-wing centripetal (centrifugal) planar sliding plate is a right-angled trapezoidal plate, the end face of the short base side of the right-angled trapezoidal plate is close to the aforementioned sliding compensation type planar wedge reversing device and is attached to the right end face of the secondary frame positioning plate to form a sliding friction pair, the end face of the long base side of the right-angled trapezoidal plate is attached to the left end face of the tertiary frame positioning plate to form a sliding friction pair; the two sides of the right-angled trapezoidal plate are respectively attached to triangular or fan-shaped friction blocks evenly distributed and fixed between the secondary and tertiary frame positioning plates parallel to the reference radial plane on the large end face to form a sliding friction pair; the center line of the right-angled side end face of the right-angled trapezoidal plate A groove or protrusion parallel to the end face is provided, or a hole of appropriate diameter is drilled perpendicular to the end face, to insert the corresponding replaceable sub-module head; the non-right-angled side end face of the right trapezoidal plate is attached to the reference centroid side and the inclined end face of the reference proximal side of the right-angled triangle plate of the aforementioned sliding compensation type planar wedge reversing device to form a sliding friction pair, and the non-right-angled side end face of the right trapezoidal plate extends to the side of the aforementioned sliding compensation type planar wedge reversing device to form a protruding small right-angled triangle, the inclined end face of the protruding small right-angled triangle is coplanar with the inclined end face of the aforementioned right trapezoidal plate and is attached to the reference proximal side of the right-angled triangle plate of the aforementioned sliding compensation type planar wedge reversing device to form a sliding friction pair, and the long right-angled side end face of the protruding small right-angled triangle is perpendicular to the short base side end face of the aforementioned right trapezoidal plate, and the long right-angled side end face of the protruding small right-angled triangle is respectively provided with a reset spring.

[0057] A further improvement to the technical solution of the present invention is: the regular N-gon, wherein 3≤N≤8.

[0058] Due to the adoption of the above technical solution, the technical effects achieved by this invention are as follows: In the functional discrete design concept provided by this invention, the aforementioned four necessary functions are all independent of each other and basically do not affect each other. The advantage of this design scheme is that it can maximize all the expected functions of the crimping machine.

[0059] This technical solution enables all functions of the crimping machine (i.e., the aforementioned force component, direction change, and radial crimping functions) to achieve optimal performance, and it is easy to find a suitable design scheme. This allows the crimping machine to achieve near-optimal efficiency, service life, safety, and stability.

[0060] The new machine provided by this invention, if it wants to possess all the advantages of the first and second generation crimping machines, adopts a functional discrete (or independent) design approach. That is, a certain function of the equipment is realized through only one type (group) of components. This design scheme can ensure that all functions of the equipment reach their optimal state. Attached Figure Description

[0061] Figure 1 It refers to the assembled hydraulic hoses and metal fittings that have not yet been crimped (locked).

[0062] Figure 2 This is a schematic diagram of the principle of a typical first-generation crimping machine.

[0063] Figure 3 This is a schematic diagram of the principle of a typical second-generation crimping machine.

[0064] Figure 4 This is a schematic diagram of the principle of the improved version of the first-generation side-opening experimental prototype provided by the present invention.

[0065] Figure 5 yes Figure 4 Sectional view along the CC direction.

[0066] Figure 6 yes Figure 4 Sectional view along the DD direction. Detailed Implementation

[0067] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0068] The present invention provides a novel design concept for a crimping machine.

[0069] If the new machine provided by this invention were to possess all the advantages of the first and second generation crimping machines simultaneously, it would be impossible to achieve this from a purely functional perspective through the aforementioned integrated design approach. This is because the drawback of the integrated design approach is that all integrated functions cannot simultaneously reach their optimal state. Therefore, a functional discrete (or independent) design approach is necessary. That is, a specific function of the equipment is implemented through only one type (or group) of components. Only such a design scheme can ensure that all functions of the equipment reach their optimal state.

[0070] However, the drawbacks of the functionally discrete (independent) design approach are also obvious: it inevitably leads to a more complex equipment structure, thereby increasing manufacturing costs. The inherent flaws of this design approach are, in fact, contrary to the goal of low cost.

[0071] However, crimping machines are a type of mechanical equipment with huge market demand. By optimizing the design structure and manufacturing process, it is entirely possible to achieve standardized mass production and significantly reduce manufacturing costs.

[0072] As mentioned above, the present invention achieves its intended objectives through the following methods: The design approach of separating functions is adopted to ensure that all expected functions of the new crimping machine are optimized, and the design principle block diagram below is strictly followed: Linear reciprocating power – balanced force distribution device – power reversing assembly – clamping working assembly Its design concept is characterized by: 1. Its overall design scheme mainly includes: linear reciprocating power assembly, balanced force distribution device assembly, power direction changing assembly, centrifugal tightening and centrifugal opening assembly, and other supporting electro-hydraulic-pneumatic control assembly.

[0073] 2. The linear reciprocating power assembly, the balanced force distribution device assembly, the power direction changing assembly, and the centrifugal tightening and centrifugal opening assembly all perform their respective functions independently, rather than one assembly simultaneously supporting the functions of other assemblies. 3. As mentioned earlier: When the crimping machine is working, the main mold only performs two reciprocating movements: centrifugal tightening and centrifugal opening. Using a linear reciprocating power source to achieve these mechanical movements simplifies the equipment structure. While choosing a non-linear reciprocating power source can achieve the intended function of the crimping machine, it inevitably leads to a more complex equipment structure, which is undesirable. Similarly, theoretically, multiple linear reciprocating power sources could drive multiple crimping machine main molds using modern servo technology, but their synchronization accuracy and efficiency are poor. Therefore, most existing crimping machines use a single hydraulic cylinder or pneumatic cylinder for power. This invention also recommends using a single linear reciprocating power source for the crimping machine. If a single reciprocating power source is used as the drive component of the crimping machine, then to achieve the desired crimping function, it is necessary to have a force-balancing component, a power-directing component that redirects the multiple force components by 90°, and a centrifugal tightening and centrifugal opening component (working part). All four functions (or structures) are indispensable. The overall machine function (or structure) must be as described below: 4. The linear reciprocating power assembly is the sole power source for the entire machine.

[0074] 5. The function of the balanced force component is to divide the single linear reciprocating power provided by the aforementioned linear reciprocating power source into N strictly synchronized driving forces that are completely consistent with the original single linear reciprocating power direction, so as to drive the next stage component - the power direction changing component.

[0075] 6. The N power reversing components are only responsible for reversing the N strictly synchronous, equal, and parallel linear reciprocating forces transmitted from the balanced force component by 90°, thereby transforming them into N strictly centripetal forces and centrifugal opening forces.

[0076] 7. The N centripetal tightening and centrifugal opening components respectively receive power from the corresponding power reversing components, perform strictly synchronized centripetal tightening and centrifugal opening movements, and drive the corresponding molds to complete the expected clamping function. Advantages and disadvantages of the design concept provided by this invention: 1. Advantages: All functions of the crimping machine (i.e., the aforementioned force component, direction change, and radial crimping functions) can achieve optimal performance, and ideal design solutions can be easily found. This allows the crimping machine to achieve optimal efficiency, service life, safety, and stability.

[0077] 2. Disadvantages: The design scheme proposed under this functional discrete design approach results in a more complex crimping machine structure, which undoubtedly increases manufacturing costs to some extent. The cumulative error between multiple sets of components is also bound to be larger than that of the functional integrated design approach, requiring a higher degree of standardization of parts. Furthermore, the more dispersed the parts, the more lubrication points there are, increasing the difficulty of lubricating the equipment.

[0078] A typical specific embodiment of the design concept of this invention—multi-set single-acting planar wedge crimping machine: The following is in conjunction with the appendix Figure 4 , 5 Section 6 describes specific embodiments provided by the present invention.

[0079] Appendix Figure 4 , 5 6 is essentially a schematic diagram of the improved version of the first-generation side-opening experimental prototype provided by the inventor. Figure 5 for Figure 4 C-axis sectional view, Figure 6 for Figure 4 Sectional view along the DD direction.

[0080] Because the spatial relationships of the components in the specific embodiments of this invention are quite complex, and the specific embodiments of the machine (hereinafter referred to as the machine) are essentially assembled based on the center line of the horizontally arranged cylinder rod, the following concepts are predefined in advance for the convenience of the following description: 1. Reference center line: This refers to the center line of the cylinder rod or the geometric extension of the center line of the cylinder rod.

[0081] 2. Reference radial line and reference radial plane: The reference radial line refers to the straight line perpendicular to the aforementioned reference center line; the reference radial plane refers to the plane formed by rotating the aforementioned reference radial line about the reference center line as an axis.

[0082] 3. Reference Tangent Line and Reference Tangent Plane: The reference tangent line refers to a straight line that is perpendicular to the aforementioned reference radial line. The reference tangent plane refers to a plane that is parallel to the aforementioned reference center line and passes through the reference tangent line.

[0083] 4. Reference Proximal Side and Reference Distal Side: The reference proximal side refers to the side closer to the aforementioned reference center line, while the reference distal side is the opposite.

[0084] The specific embodiments provided by this invention mainly include: Hydraulic drive system (corresponding to the linear reciprocating power source in the design principle block diagram), equalizing force distribution plate (corresponding to the equalizing force distribution device in the design principle block diagram), sliding compensation type planar wedge reversing assembly (corresponding to the power reversing assembly in the design principle block diagram), single-wing type centrifugal planar sliding plate assembly (corresponding to the clamping working assembly in the design principle block diagram).

[0085] In the appendix Figure 4 , 5 6. 401 is the cylinder body of the drive cylinder; there is only one of this part in this machine.

[0086] 402 is the reinforcing rib plate for the drive cylinder flange; there are a total of 4 of these parts in this machine.

[0087] 403 is the drive cylinder flange; there is only one of these parts in this machine.

[0088] 404 is the left-closed spacer, and its main functions are twofold: 1. Safety guard. 2. To cooperate with the tie rod 422, the primary frame positioning plate 408, the secondary frame positioning plate 416, and the special-shaped spacer 421 to screw and fix the main body of the machine after assembly, i.e., to provide support. Technical requirements for this part: The left and right end faces must be strictly parallel; otherwise, the overall machine accuracy will be affected. There is only one of this part in this machine.

[0089] 405 is a force-balancing plate. Its main function is to: transition and fit with the cylindrical shoulder of the drive cylinder rod 411 on its left end face, transmitting the linear reciprocating push (pull) force from the drive cylinder, and evenly dividing the single linear reciprocating push (pull) force from the drive cylinder on the left end face into N linear reciprocating push (pull) forces evenly distributed centripetally or radially on the circumference of the reference radial plane with the reference center line as the axis. In other words, the main function of this part is to transform one linear reciprocating driving force into N equal linear reciprocating driving forces whose direction is strictly parallel to the original force. In this machine, N=4.

[0090] Technical requirements for this part: The left and right end faces must be strictly parallel, and the strength (including crush strength) and stability must be sufficient; otherwise, the overall accuracy of the machine will be affected. There is only one such part in this machine.

[0091] 406 is a pre-installed hexagonal bolt in the groove of the sliding compensation planar wedge reversing assembly. Its function is to cooperate with the high-elasticity rubber sleeve or compression spring 415 and the anti-loosening nut 414 to elastically connect the left end face of the sliding compensation planar wedge reversing assembly 407 to the right end face of the equalizing force distribution plate 405, and to allow the left end face of the sliding compensation planar wedge reversing assembly 407 to slide slightly along the reference radial plane towards the reference telecentric side when necessary, so as to compensate for wear errors. There are 4 of these parts in this machine.

[0092] 407 is a sliding compensation type planar wedge deflector plate. There are four of these parts in this machine, and they are evenly distributed radially or centripetally around the reference center line on the reference radial plane. The part is generally a right-angled triangular plate. The hypotenuse side of the right-angled triangle is on the reference proximal side and is in contact with the hypotenuse side of the single-wing centripetal planar sliding plate 410 to form a sliding friction pair, thus driving the single-wing centripetal planar sliding plate 410 to perform a strict radial centripetal movement. The long right-angle side of the triangle is on the reference distal side, and its end face is strictly parallel to the reference tangential plane and is in contact with the corresponding backrest-type steel wear-resistant limiting plate 420 to form a sliding friction pair. Its triangular short right-angled side end face is screwed and elastically fixed to the right end face of the left-side equalizing force distribution plate, forming a sliding friction pair. This allows the left end face of the sliding compensation planar wedge reversing assembly 407 to slide slightly along the reference radial plane towards the reference telecentric side when necessary, to compensate for wear errors. The two end faces of its triangular plane form sliding friction pairs with the rectangular groove sides on the primary frame positioning plate 408 and the secondary frame positioning plate 416, thus restricting the spatial degrees of freedom of the sliding compensation planar wedge reversing assembly 407, enabling it to perform only linear motion strictly parallel to the reference center line while allowing for slight radial sliding.

[0093] The A-angle of this part is generally 20°. If this angle is too large, it will increase the wear of the crimping machine or increase the proportion of wasted work, but it can increase the overall machine speed. If this angle is too small, it will reduce the wear of related parts of the crimping machine and reduce the proportion of wasted work, but it will reduce the working speed of the crimping machine, and the stroke length of the drive cylinder will also need to be increased.

[0094] 408 is the primary frame positioning plate; there is only one of these parts in this machine. Its functions are as follows: 1. To cooperate with the main frame tie rod 423, the left closing spacer 404, the secondary frame positioning plate 416, and the special-shaped spacer 421 to screw and fix the main body of the machine after assembly, thus providing support. 2. To provide limiting (positioning) for the side ends of the radially or radially distributed rectangular grooves on its reference radial plane, facing the sliding compensation type planar wedge reversing assembly 407, the single-wing type radial (centrifugal) planar sliding plate 410, the backrest type steel wear-resistant limiting plate 420, and the main frame tie rod 423. 3. To form a sliding friction pair with the left and right sides of the sliding compensation type planar wedge reversing assembly 407 and the single-wing type radial (centrifugal) planar sliding plate 410.

[0095] This component is connected to the secondary frame positioning plate 416 and the tertiary frame positioning plate 418 via the main frame tie rod 423 and the triangular (or fan-shaped) guide wear-resistant block 422. It mainly bears the centrifugal reaction force during the crimping operation, so its strength and stability must be sufficient.

[0096] 409 is a T-shaped sealing insert, mainly used for sealing and dust prevention. There are 4 of these parts in this machine, which are inserted and fixed into the pre-machined grooves of the triangular (or fan-shaped) guide wear-resistant blocks 422.

[0097] 410 is a single-wing type centrifugal planar sliding plate. There are 4 of these parts in this machine. They are evenly distributed in a centrifugal or radial pattern on the reference radial plane with the reference center line as the axis. Its right end face is in contact with the left end face of the third-level frame positioning plate 418 to form a sliding friction pair. Its left reference distal side inclined end face is in contact with the reference proximal side inclined end face of the sliding compensation type planar wedge direction change component 407 to form a sliding friction pair. Its two end faces are in contact with the rectangular groove end face on the first-level frame positioning plate 408 and the second-level frame positioning plate 416, as well as the end face of the triangular (or fan-shaped) guide wear-resistant block 422 to form a sliding friction pair. Under the constraint of the aforementioned limiting friction surface, the single-wing centrifugal planar sliding plate 410 can only perform a strict radial centrifugal tightening movement on the reference radial plane under the drive of the sliding compensation planar wedge reversing assembly 407, and drive the N pluggable replaceable module heads 417 inserted on its reference proximal side to perform a strictly synchronous centrifugal snapping movement. Its centrifugal opening movement needs to be completed by the elastic force of the reset spring 426. The right-angle end face of this part that contacts the reset spring 426 has a groove of appropriate depth to prevent the reset spring from disengaging from its normal working position during operation.

[0098] Technical requirements for this part: (See attached) Figure 4 The small chamfer at corner B of this component is necessary. A proper chamfer ensures that the sliding compensation planar wedge steering assembly always maintains complete contact with the reference distal side inclined plane of the single-wing centrifugal planar sliding plate 410 during normal operation, eliminating any dead zones. (Attached) Figure 4The B-angle is 10°. The chamfer C on the reference proximal side of the sliding compensation type planar wedge reversing plate 407 is also the same.

[0099] 411 is the drive cylinder rod; there is only one of this part in this machine. Its axis is horizontally arranged, and its axis is the assembly reference for all parts of this machine. Its right end cylindrical shoulder fits into the center hole of the equalizing force distribution plate 405 and is fixed by the pressure cap 412 and fastening bolt 413.

[0100] Technical requirements for this part: As this part is the assembly reference for the entire crimping machine, it must have sufficient strength, rigidity, stability and extremely high motion repeatability.

[0101] 412 is the pressure cap. There is only one part of this machine. Its function is described in the previous item.

[0102] 413 is a fastening bolt, as in the previous item.

[0103] 414 is the anti-loosening nut. There are a total of 4 parts in this machine. Its function is described in the relevant description of the sliding compensation type planar wedge reversing assembly 407.

[0104] 415 is a high-elastic rubber sleeve or compression spring. There are a total of 4 parts in this machine, and their functions are described in the previous item.

[0105] 416 is the secondary frame positioning plate. There is only one of these parts in this machine. For its function, please refer to the relevant instructions for the primary frame positioning plate 408.

[0106] 417 is a pluggable replaceable module head. This part comes in M ​​models, with 4 pieces of each model. Different models have different inner arc sizes on the proximal side of the reference point to allow for the crimping and processing of tubular (rod) products with different outer diameters. Therefore, processing tubular (rod) products with different outer diameters (or shapes) requires changing to different types of pluggable replaceable module heads. (See attached image.) Figure 4 , 5 The provided module head is an axially pluggable type. This type of module head requires an anti-dislodgement cover 419 during operation to prevent it from detaching on its own or causing jamming. The more advanced radially pluggable module head does not require this anti-dislodgement cover.

[0107] 418 is a level 3 frame positioning plate. There is only one such part in this machine. For its function, please refer to the relevant instructions for level 1 and level 2 frame positioning plates.

[0108] 419 is a pluggable replaceable module head dislodgement cover. There is only one such part in this machine. For its function, please refer to the relevant description of the pluggable replaceable module head 417.

[0109] 420 is a backrest-type steel wear-resistant limiting plate. There are four such parts in this machine. They are fixed in the rectangular grooves of the primary frame positioning plate 408 and the secondary frame positioning plate 416 by mortise and tenon joints. Its reference proximal end face is in contact with the reference distal end face of the sliding compensation type planar wedge reversing assembly 407 to form a sliding friction pair, which limits the sliding compensation type planar wedge reversing assembly 407 and prevents it from generating large elastic deformation.

[0110] This part can not only reduce the structural weight of the equipment, but also improve the positioning accuracy of the assembly, and greatly reduce the cumulative error caused by multiple assembly of multiple parts.

[0111] Part 421 is a non-standard spacer. This machine contains only one such part. Its main function is the same as the left closed spacer 404, but its non-standard structure provides space and a safety shield for the operator to reach into the machine from the open side to operate the crimping machine. Specifically, the fan-shaped space in the middle of the non-standard spacer 421 facilitates operation when crimping non-standard or elongated soft workpieces. If the width of this operating space is to be increased, not only the height of the non-standard spacer 421 needs to be increased, but the sliding compensation planar wedge reversing assembly 407 should also be lengthened accordingly. (See attached image) Figure 4 , 5 The model provided in section 6 is actually a crimping machine specifically designed for crimping soft grounding wires in the power industry. For crimping other models and types of workpieces, the design scheme should be appropriately adjusted according to the characteristics of the workpiece and the operating method.

[0112] 422 is a triangular (or fan-shaped) guide wear-resistant block. There are 5 such parts in this machine. Its thickness is the same as the spacing between the second and third level frame positioning plates and the height of the single-wing centrifugal sliding plate. Its main function is to provide limiting for the two sides of the four single-wing centrifugal sliding plates 410 and form a sliding friction pair with them. The triangular guide wear-resistant block is connected between the second level frame positioning plate 416 and the third level frame positioning plate 418 by a positioning pin that transitions with the outer diameter of the main frame tie rod 423.

[0113] 423 is the main frame tie rod, one of eight parts in this machine. In this machine, this tie rod also plays a role in precise positioning. Its holes in the first, second, and third level frame positioning plates, triangular (or fan-shaped) guide wear-resistant blocks, and drive cylinder flanges are all high-precision clearance fits.

[0114] 424 is a small triangular (or fan-shaped) guide wear-resistant block positioning pin (rod). There are 2 of these parts in this machine. Its function is the same as the main frame tie rod, but its outer diameter is slightly smaller. This part can be directly fixed by taper pin.

[0115] 425 is the reset spring pressure plate. There are 4 of these parts in this machine. Its function is to prevent the reset spring from disengaging from the working position. 426 is a reset spring. There are 4 such parts in this machine. Its function is to help the non-self-resetting single-wing centrifugal sliding plate 410 to open automatically.

[0116] The following is a brief description of the specific working process of the multi-group single-acting planar wedge crimping machine according to a specific embodiment of the present invention: 1. Centripetal clamping process: The drive cylinder outputs a linear thrust to the right through the cylinder rod. This thrust is decomposed by the equalizing force distribution plate into N linear thrusts to the right, which are evenly distributed radially on the reference radial plane (N=4 in this machine). These N linear thrusts to the right drive N (N=4 in this machine) corresponding single-wing centripetal (eccentric) plane sliding plates to perform strictly synchronized radial centripetal tightening movements (the direction of the force changes by 90°) through the inclined plane on the near-center side of the sliding compensation type planar wedge reversing component. This drives the sub-module head to complete the clamping work.

[0117] 2. Centrifugal opening process: The drive cylinder outputs a linear pulling force to the left through the cylinder rod. This pulling force is decomposed by the equalizing force distribution plate into N linear pulling forces to the left, evenly distributed in a circular radial direction on the reference radial plane (N=4 in this machine). These N linear pulling forces to the left drive the sliding compensation type planar wedge reversing assembly to the left (i.e., the centripetal pressure applied to the corresponding single-wing type centrifugal plane sliding plate is removed). Under the action of the return spring, the single-wing type centrifugal plane sliding plate performs a centrifugal opening action until its reference near-center inclined plane is completely in contact with the reference far-center inclined plane of the sliding compensation type planar wedge reversing assembly. That is, the single-wing type centrifugal plane sliding plate has returned to the starting point of the centrifugal clamping process and is ready for the next centrifugal clamping.

[0118] The advantage of this structure is that it avoids the problem of uneven wear of the main working module of the second-generation crimping machine. Even if the relevant parts wear out during operation, as long as the wear of N identical parts is basically similar, it will not significantly affect the accuracy of the equipment.

[0119] In this specific embodiment, all sliding friction surfaces exhibit ideal surface contact friction, which is clearly an advantage over the first-generation crimping machine, which primarily uses line contact friction. Furthermore, all friction components operate independently, with minimal mutual interference, and their movement trajectories are independently controllable. Unlike the second-generation crimping machine, where wear in one area can trigger a vicious cycle of chain reactions. Theoretically, its working accuracy and stability are inherently higher than those of the first and second-generation crimping machines. It can achieve a longer service life using general materials and conventional processes, thus enabling the localization of high-quality and efficient crimping machines.

[0120] The crimping mechanism in this specific embodiment exhibits a strictly controlled, single radial-centripetal motion. This differs not only from the radial-centripetal motion of the second-generation crimping machine (which is similar but not strictly controllable), but also from the first-generation crimping machine, which combines radial-centripetal motion with a horizontal linear motion. This strictly controlled, single radial-centripetal motion results in higher working accuracy for this embodiment, and it also allows for extremely high working speeds, similar to the second-generation crimping machine. In other words, it offers both high equipment accuracy and high working efficiency.

[0121] The inventors' team has repeatedly compared the specific embodiments provided by this invention with the structures of advanced internationally renowned brand crimping machines. The team unanimously believes that the specific embodiments provided by this invention have a structure that is significantly superior to all existing domestic and international brand crimping machines.

[0122] Of course, compared with the existing first and second generation crimping machines on the market, the specific embodiment provided by this invention has a more complex structure, making it more difficult to achieve standardized mass production. It also requires some special equipment and processes, which is certainly not something that can be done in the short term. However, it is entirely possible to achieve this within one or two years. In fact, since the successful launch of the experimental model of this specific embodiment, the inventor team has been committed to this work.

[0123] The specific implementation provided by this invention requires a relatively complex multi-point lubrication device. As the supporting lubrication device—an automatic solid lubricant feeding device—is independent of the content of this patent, the inventor will submit it separately to the State Patent Office in the form of an independent patent.

[0124] The peripheral liquid, gas, and electrical control components related to the specific embodiments provided by this invention are well-known and common technologies, and are not within the scope of protection of this patent, so they will not be described in detail.

[0125] In summary, the specific embodiments provided by this invention patent—multi-group single-acting planar wedge crimping machines—possess the following essential features: 1. The multi-group single-acting planar wedge crimping machine mainly includes: a single linear reciprocating power source, a balanced force distribution device, a sliding compensation planar wedge reversing device, a centrifugal tightening and centrifugal opening working component—a single-wing centrifugal planar sliding component, and other necessary supporting parts.

[0126] 2. The single linear reciprocating power source may be a linear reciprocating driving force provided by a hydraulic cylinder, pneumatic cylinder, or other mechanical or electromagnetic mechanism.

[0127] 3. The balanced force distribution device is a disc (or regular N-gon) shaped device with two parallel end faces. One of the two parallel end faces is the force-receiving end face, and the other parallel end face is the force-distributing end face. The perpendicular line from the center point of the two parallel end faces of the disc (or regular N-gon) is the reference central axis of the main unit. The center point of the force-receiving end face receives a linear reciprocating driving force from the aforementioned linear reciprocating power source and is perpendicular to the force-receiving end face. The aforementioned force-distributing end face transforms the single linear reciprocating driving force and divides it equally into N linear reciprocating driving force components that are strictly parallel to the aforementioned reference central axis, along the force-distributing end face, and centered at the intersection of the aforementioned reference central axis and the force-distributing end face. The aforementioned force-distributing end face then transmits the transformed and equally distributed N linear reciprocating driving force components to the corresponding next-stage sliding compensation planar wedge-shaped direction-changing device that slides with the end face. (N≥3, N≤8, the same below) 4. The sliding compensation type planar wedge reversing device mainly consists of N sliding compensation type planar wedge reversing plates and N backrest type limiting plates. The N sliding compensation type planar wedge reversing plates and the N backrest type limiting plates are all evenly distributed in a centripetal or radial pattern on a circle perpendicular to the reference center axis and with a point on the reference center line as the center. The sliding compensation planar wedge deflector plate is a right-angled triangular plate. The hypotenuse side of the right-angled triangular plate is near the reference center axis, while the long right-angle side is far from the reference center axis and perpendicular to the force-component end face of the aforementioned equalizing force-component device. The perpendicular line from the center of the long right-angle side of the right-angled triangular plate points to the reference center axis. The short right-angle side of the right-angled triangular plate is in contact with and elastically connected to the force-component end face of the aforementioned equalizing force-component device, forming a sliding friction pair at the connection surface. This pair can transmit the linear reciprocating drive force from the force-component end face of the aforementioned equalizing force-component device, causing the right-angled triangular sliding compensation planar wedge deflector plate to also perform linear reciprocating motion. Furthermore, the two sides of the right-angled triangular plate are in contact with the two sides of the pre-machined rectangular groove on the main frame plate, forming a sliding friction pair to limit the spatial degree of freedom of the triangular sliding compensation planar wedge deflector plate, ensuring that the sliding compensation planar wedge deflector plate moves strictly according to a linear reciprocating motion trajectory. The backrest-type limiting plate is a rectangular plate that is inserted (or screwed) and fixed to the pre-added long slots on the primary and secondary frame positioning plates of the main unit. The primary and secondary frame positioning plates are circular or regular polygonal in shape, and the circular (or regular polygonal) planes on both sides of the primary and secondary frame positioning plates are strictly parallel to the reference radial plane. The side end face with the largest area of ​​the rectangular plate is in contact with the side end face of the long right-angled side of the right triangle of the aforementioned sliding compensation type planar wedge deflector plate to form a sliding friction pair, and the N sliding compensation type planar wedge deflector plates correspond one-to-one with the N backrest-type limiting plates. The side end face with the smallest area of ​​the rectangular plate is parallel to the force-component end face of the aforementioned equal force-component device. When the sliding compensation type planar wedge deflector plate is subjected to a force away from the reference axis, the side end face of the short right-angled side of the right triangle of the sliding compensation type planar wedge deflector plate can slide along the force-component end face of the aforementioned equal force-component device that is in contact with it in a direction away from the reference axis until the side end face of the long right-angled side of the right triangle of the sliding compensation type planar wedge deflector plate is in contact with the friction end face of the corresponding aforementioned backrest type limiting plate.

[0128] 5. The centripetal tightening and centrifugal opening working assembly consists of N centripetal or radially distributed single-wing centripetal (centrifugal) planar sliding plates and auxiliary sliding friction pairs, arranged in a centripetal or radial pattern on a circle perpendicular to the reference center axis and centered at a point on the reference center line. The main body of the single-wing centripetal (centrifugal) planar sliding plate is a right-angled trapezoidal plate. The end face of the short base side of the right-angled trapezoidal plate is close to the aforementioned sliding compensation type planar wedge reversing device and is attached to the right end face of the secondary frame positioning plate to form a sliding friction pair. The end face of the long base side of the right-angled trapezoidal plate is attached to the left end face of the tertiary frame positioning plate to form a sliding friction pair. The two sides of the right-angled trapezoidal plate are respectively attached to triangular (or fan-shaped) friction blocks that are evenly distributed and fixed between the secondary and tertiary frame positioning plates with large end faces parallel to the reference radial plane to form sliding friction pairs. The right-angled trapezoidal plate has a groove (or protrusion) parallel to the end face of the right-angled side, or a hole of appropriate diameter drilled perpendicular to the end face, to allow for the insertion of a corresponding replaceable sub-module head. The non-right-angled side of the right-angled trapezoidal plate is attached to the inclined end face of the right-angled triangular plate of the aforementioned sliding compensation planar wedge reversing device on the reference distal side, forming a sliding friction pair. The non-right-angled side of the right-angled trapezoidal plate extends towards the aforementioned sliding compensation planar wedge reversing device and forms a protruding small right-angled triangle. The inclined end face of the protruding small right-angled triangle is coplanar with the inclined end face of the aforementioned right-angled trapezoid and is also attached to the inclined end face of the right-angled triangular plate of the aforementioned sliding compensation planar wedge reversing device on the reference proximal side, forming a sliding friction pair. The long right-angled side of the protruding small right-angled triangle is perpendicular to the short base side of the aforementioned right-angled trapezoidal plate, and a return spring is provided on the long right-angled side of the protruding small right-angled triangle.

[0129] It is important to emphasize that the core idea of ​​this invention is the functionally discrete (or independent) design concept, which is completely different from the design concepts of the first and second generation crimping machines currently popular in the market. Ignoring cost, manufacturing difficulty, and performance, theoretically, based on the functionally discrete design concept provided by this invention, it is certainly possible to design thousands of specific models. Furthermore, the discrete (or independent) crimping machine design concept provided by this invention refers only to the functional structural discreteness, not necessarily the discreteness of the specific physical structure. For example, the cylinder rod in the aforementioned specific embodiment of this invention can certainly be integrally formed with the equalizing force distribution plate in terms of physical structure, but this physical integration does not affect its essential functional discreteness; that is, the single linear reciprocating drive of the cylinder and the equalizing force distribution function are implemented independently without affecting each other. In fact, the inventors' team has developed practical models with this structure, and the irregularly shaped cylinder rod of the aforementioned first-generation crimping machine also has a similar structure.

[0130] The specific embodiments provided by the inventor are merely typical (or practical) implementations of this design concept that are low-cost, easy to manufacture, and relatively reliable in operation. They are not (and cannot be) the only implementation of this design concept, much less the optimal implementation. All crimping machine designs implemented according to the design concept provided in this patent should be included within the scope of protection of this patent.

Claims

1. A multi-group single-acting planar wedge crimping machine, characterized in that: It includes a single linear reciprocating power source, a balanced force distribution device, a sliding compensation type planar wedge reversing device, a centrifugal tightening and centrifugal opening working assembly, and other necessary supporting components.

2. The multi-group single-acting planar wedge crimping machine according to claim 1, characterized in that: The balanced force distribution device is a disc-shaped or regular N-sided device with two parallel end faces. One of the two parallel end faces is the force-bearing end face, and the other parallel end face is the force-distributing end face. The perpendicular line from the center point of the two parallel end faces of the disc-shaped or regular N-sided device is the reference central axis of the main unit. The center point of the force-bearing end face receives a linear reciprocating driving force from the aforementioned linear reciprocating power source and is perpendicular to the force-bearing end face. The aforementioned force-distributing end face transforms the single linear reciprocating driving force and divides it equally into N linear reciprocating driving force components that are strictly parallel to the aforementioned reference central axis and are distributed equally and strictly equal along the radial circumference of the force-distributing end face with the intersection of the aforementioned reference central axis and the force-distributing end face as the center. The aforementioned force-distributing end face transmits the transformed and equally divided N linear reciprocating driving force components to the corresponding next-level sliding compensation planar wedge direction-changing device that slides with the end face.

3. A multi-group single-acting planar wedge crimping machine according to claim 1, characterized in that: The sliding compensation type planar wedge reversing device mainly includes N sliding compensation type planar wedge reversing plates and N backrest type limiting plates; and the N sliding compensation type planar wedge reversing plates and N backrest type limiting plates are evenly distributed in a centripetal or radial pattern on a circle perpendicular to the reference center axis and centered at a point on the reference center line; wherein the sliding compensation type planar wedge reversing plate is a right-angled triangular plate, the hypotenuse side end face of the right-angled triangular plate is near the reference center axis, and the long right-angle side end face of the right-angled triangular plate is far from the reference center axis and perpendicular to the force component end face of the aforementioned equalizing force component device. The perpendicular line from the center of the long right-angled side end face of the right-angled triangle plate points to the reference central axis. The short right-angled side end face of the right-angled triangle plate is in contact with and elastically connected to the force-component end face of the aforementioned equalizing force-component device, forming a sliding friction pair at the connection surface. This allows the transmission of the linear reciprocating drive force from the force-component end face of the aforementioned equalizing force-component device, causing the right-angled triangle-shaped sliding compensation planar wedge deflector plate to also perform linear reciprocating motion. Furthermore, the two sides of the right-angled triangle plate are in contact with the two end faces of the pre-machined rectangular groove on the main frame plate, forming a sliding friction pair to limit the sliding compensation of the triangular shape. The spatial degrees of freedom of the compensated planar wedge deflector plate allow it to move strictly along a linear reciprocating motion trajectory. The backrest-type limiting plate is a rectangular plate that is inserted or screwed to the long slots pre-added to the primary and secondary frame positioning plates of the main unit. The primary and secondary frame positioning plates are circular or regular polygonal in shape, and the circular or regular N-sided planes on both sides of the primary and secondary frame positioning plates are parallel to the reference radial plane. The side end face with the largest area of ​​the rectangular plate is in contact with the side end face of the longer right-angled side of the right triangle of the aforementioned compensated planar wedge deflector plate to form a sliding friction pair. N sliding compensation type planar wedge deflector plates correspond one-to-one with N backrest type limiting plates; the side end face with the smallest area of ​​the rectangular plate is parallel to the force component end face of the aforementioned equalizing force component device. When the sliding compensation type planar wedge deflector plate is subjected to a force away from the reference axis, the side end face of the short right-angled side of the right triangle of the sliding compensation type planar wedge deflector plate can slide along the force component end face of the aforementioned equalizing force component device that is in contact with it in a direction away from the reference axis until the side end face of the long right-angled side of the right triangle of the sliding compensation type planar wedge deflector plate is in contact with the friction end face of the corresponding aforementioned backrest type limiting plate.

4. A multi-group single-acting planar wedge crimping machine according to claim 1, characterized in that: The centrifugal tightening and centrifugal opening working assembly consists of N centrifugal or radially distributed single-wing centrifugal (centrifugal) planar sliding plates and auxiliary sliding friction pairs on a circle perpendicular to the reference center axis and centered at a point on the reference center line. The main body of the single-wing centrifugal (centrifugal) planar sliding plate is a right-angled trapezoidal plate. The end face of the short base side of the right-angled trapezoidal plate is close to the right end face of the secondary frame positioning plate near the aforementioned sliding compensation type planar wedge reversing device to form a sliding friction pair. The end face of the long base side of the right-angled trapezoidal plate is close to the left end face of the tertiary frame positioning plate to form a sliding friction pair. The two sides of the right-angled trapezoidal plate are respectively close to the triangular or fan-shaped friction blocks evenly distributed and fixed between the secondary and tertiary frame positioning plates parallel to the reference radial plane to form a sliding friction pair. The center line of the right-angled side end face of the right-angled trapezoidal plate is provided with a parallel to the reference radial plane. The end face has a groove or protrusion, or a hole of appropriate diameter is drilled perpendicular to the end face to insert the corresponding replaceable sub-module head; the non-right-angled side end face of the right trapezoidal plate is attached to the reference centroid side and the inclined end face of the reference proximal side of the right triangle plate of the aforementioned sliding compensation type planar wedge reversing device to form a sliding friction pair, and the non-right-angled side end face of the right trapezoidal plate extends to the side of the aforementioned sliding compensation type planar wedge reversing device to form a protruding small right-angled triangle, the inclined end face of the protruding small right-angled triangle is coplanar with the inclined end face of the aforementioned right trapezoidal plate and is attached to the reference proximal side of the right triangle plate of the aforementioned sliding compensation type planar wedge reversing device to form a sliding friction pair, and the long right-angled side end face of the protruding small right-angled triangle is perpendicular to the short base side end face of the aforementioned right trapezoidal plate, and the long right-angled side end face of the protruding small right-angled triangle is respectively provided with a reset spring.

5. A multi-group single-acting planar wedge crimping machine according to any one of claims 1-4, characterized in that: The regular N-gon, where 3 ≤ N ≤ 8.

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