Non-fixed-length elevator guide rail automatic machining production line and production process thereof

Abstract

The invention relates to an automatic machining production line for a non-fixed-length elevator guide rail and a production process thereof. The automatic machining production line comprises an elevator guide rail milling unit, an elevator guide rail mortise and tenon machining unit, an elevator guide rail drilling and counter sinking machining unit and a conveying and feeding unit. The elevator guide rail milling unit, the elevator guide rail mortise and tenon machining unit and the elevator guide rail drilling and counter sinking machining unit are all transversely arranged, and transverse conveying and feeding are conducted between the elevator guide rail milling unit, the elevator guide rail mortise and tenon machining unit and the elevator guide rail drilling and counter sinking machining unit through the conveying and feeding unit. The elevator guide rail is sequentially conveyed to the first milling machine tool, the second milling machine tool, the male tenon milling power head, the female tenon milling power head, the first drilling and countersinking power head and the second drilling and countersinking power head for machining through the conveying and feeding unit. The full-transverse conveying scheme is adopted, machining of elevator guide rails of multiple specifications can be adapted, relay conveying is formed by the guide conveying device and the conveying and feeding unit, positioning precision step-by-step transmission is achieved, and the machining precision and efficiency are high.

Description

Technical Field

[0001] This invention belongs to the field of elevator manufacturing technology, and in particular relates to an automatic processing production line for non-fixed length elevator guide rails and its manufacturing process. Background Technology

[0002] Elevator guide rails are a crucial component of elevator systems. They provide precise guidance paths for the elevator car and counterweight, ensuring smooth, safe, and efficient vertical movement of the elevator within the shaft. The most commonly used elevator guide rail is the "T"-shaped guide rail, which is characterized by high rigidity, high reliability, safety, and low cost.

[0003] Currently, the precision machining of T-shaped guide rails includes milling the end face, milling the mounting back, milling the male and female tenons, drilling mounting holes, and countersinking. This involves a relatively large number of machining steps. Due to the complexity of the process, existing production lines suffer from low production efficiency and difficulty in guaranteeing machining accuracy. Furthermore, existing elevator machining production lines only process guide rails of fixed lengths. For elevator guide rails of varying lengths, the current processing method involves manual processing of each machining step on a separate machine tool. This technical problem urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the purpose of this invention is to provide an automatic processing production line for non-fixed length elevator guide rails and its production process.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An automated production line for non-fixed-length elevator guide rails includes an elevator guide rail milling unit, an elevator guide rail tenon and mortise machining unit, an elevator guide rail countersinking unit, and a conveying and feeding unit.

[0007] The elevator guide rail milling unit, the elevator guide rail tenon and mortise machining unit, and the elevator guide rail countersinking unit are all arranged horizontally, and are all connected by a conveying and feeding unit for horizontal material feeding.

[0008] An elevator guide rail milling unit includes a first milling machine tool and a second milling machine tool with the same structure and arranged in a mirror symmetrical manner. A first guide conveying device is installed on both the first milling machine tool and the second milling machine tool.

[0009] An elevator guide rail tenon and mortise machining unit includes a machine tool column, a tenon milling power head and a mortise milling power head symmetrically installed on both sides of the machine tool column, a through groove for transferring the elevator guide rail is opened in the transverse direction of the machine tool column, and a second guiding conveying device is installed in the through groove.

[0010] An elevator guide rail drilling and countersinking processing unit includes a drilling and countersinking machine tool base, a first drilling and countersinking power head and a second drilling and countersinking power head mounted side by side on the drilling and countersinking machine tool base, and a third guiding and conveying device provided on the drilling and countersinking machine tool base between the first drilling and countersinking power head and the second drilling and countersinking power head.

[0011] The elevator guide rail is sequentially transported by the conveying and feeding unit to the first milling machine tool, the second milling machine tool, the male tenon milling power head, the female tenon milling power head, the first drilling and countersinking power head, and the second drilling and countersinking power head for processing.

[0012] In a preferred embodiment of the present invention, the conveying and feeding unit includes a longitudinal feeding mechanism and a transverse conveying mechanism. Both ends of the elevator guide rail milling processing unit, the elevator guide rail tenon and mortise processing unit and the elevator guide rail countersinking processing unit are equipped with transverse conveying mechanisms, and the elevator guide rails are transversely conveyed between each processing unit through the transverse conveying mechanisms.

[0013] The first, second, and third guiding conveying devices are all coaxial with their corresponding transverse conveying mechanisms.

[0014] In a preferred embodiment of the present invention, the conveying and feeding unit is further provided with a guide rail transfer mechanism and a guide rail flipping transfer mechanism, and the transverse conveying mechanism between the elevator guide rail milling processing unit and the elevator guide rail tenon and mortise processing unit is arranged in parallel, and the guide rail transfer mechanism is provided between the two transverse conveying mechanisms.

[0015] The transverse conveying mechanisms between the elevator guide rail tenon and mortise machining unit and the elevator guide rail countersinking machining unit are arranged in parallel, and a guide rail flipping and transfer mechanism is provided between the two transverse conveying mechanisms.

[0016] In a preferred embodiment of the present invention, the transverse conveying mechanism is provided with a fixed-distance feeding component with guide rails, and the fixed-distance feeding component is arranged close to the first milling machine tool, the second milling machine tool, the male tenon milling power head, the female tenon milling power head, the first drilling and countersinking power head, and the second drilling and countersinking power head.

[0017] In a preferred embodiment of the present invention, both the first and second milling machine tools are provided with slides arranged perpendicularly to the transverse conveying mechanism. A large back-mounting surface milling head and an end-face milling head are provided on the slides, and a first guiding conveying device is provided on the slides.

[0018] In a preferred embodiment of the present invention, both the first and second drilling and countersinking power heads are provided with a drilling and countersinking composite tool.

[0019] In a preferred embodiment of the present invention, the first, second and third guiding and conveying devices each include a liftable drive roller and support rollers disposed on both sides of the drive roller, wherein the drive roller is in contact with the elevator guide rail.

[0020] An automated manufacturing process for non-fixed-length elevator guide rails includes the following steps:

[0021] A. The elevator guide rails are fed by a longitudinal feeding mechanism;

[0022] B. The longitudinal feeding mechanism feeds the elevator guide rail longitudinally to the transverse conveying mechanism at the front end of the first milling machine tool. The transverse conveying mechanism transversely conveys the elevator guide rail to the end and the large rear mounting surface of the first milling machine tool for milling one end.

[0023] C. After the end face and the large rear mounting surface of one end are milled, the elevator guide rail is transported to the transverse conveying mechanism at the front end of the second milling machine tool by the first guiding conveying device. The transverse conveying mechanism then transports the elevator guide rail in the opposite direction to the second milling machine tool to mill the end face and the large rear mounting surface of the other end.

[0024] D. After the end of the elevator guide rail and the large rear mounting surface are milled, the guide rail transfer mechanism will transfer the elevator guide rail from the transverse conveying mechanism at the front end of the second milling machine tool to the transverse conveying mechanism at the front end of the tenon milling power head. The transverse conveying mechanism will then transversely transport the elevator guide rail to the position of the tenon milling power head to mill the tenon at one end.

[0025] E. After the male tenon at one end is processed, the elevator rail is transported to the transverse conveying mechanism at the front end of the male tenon milling power head by the second guide conveying device. The transverse conveying mechanism then transports the elevator rail to the location of the male tenon milling power head to mill the other male tenon.

[0026] F. After the other end of the tenon is processed, the guide rail flipping and transfer mechanism flips the elevator guide rail from the transverse conveying mechanism at the front end of the tenon milling power head to the transverse conveying mechanism at the front end of the first drilling and countersinking power head. The transverse conveying mechanism then transversely conveys the elevator guide rail to the position of the first drilling and countersinking power head to process one end of the mounting hole and countersinking hole.

[0027] G. After the mounting hole and countersinking at one end are processed, the elevator guide rail is laterally transported to the lateral conveying mechanism at the front end of the second drilling and countersinking power head via the third guiding conveying device. The lateral conveying mechanism then reverses and transports the elevator guide rail to the location of the second drilling and countersinking power head to process the mounting hole and countersinking at the other end. After processing, the elevator guide rail is unloaded via the lateral conveying mechanism.

[0028] The beneficial effects of this invention are:

[0029] The present invention discloses an automatic processing production line for non-fixed length elevator guide rails, which adopts a horizontal series layout. The three core processing units are linearly connected through a conveying and feeding unit to maintain the consistency of the processing posture of the elevator guide rails. It can be adapted to the processing of elevator guide rails of various lengths and integrates milling, tenoning, drilling / counter-hole processes, greatly improving processing efficiency.

[0030] The elevator guide rail milling unit of the present invention adopts a dual machine tool mirror arrangement, and the elevator guide rail countersinking unit adopts a parallel power head design, which saves space while ensuring processing symmetry.

[0031] The mortise and tenon processing unit of the present invention adopts a column-type double-sided power head design and a through-slot design in conjunction with a second guide conveying device to realize the through-shaft processing of elevator guide rails, which greatly shortens the cycle time.

[0032] The elevator guide rail of this invention adopts a full transverse conveying scheme. The guiding conveying device and the conveying and feeding unit form a relay conveying, and the positioning accuracy is transferred step by step. The production line occupies a small area and makes more reasonable use of space, which is suitable for achieving efficient production in a limited production space. Attached Figure Description

[0033] Figure 1 A top view of an automated production line for non-fixed-length elevator guide rails provided by the present invention;

[0034] Figure 2 This is a top view of the elevator guide rail milling unit described in this invention;

[0035] Figure 3 This is a top view of the elevator guide rail tenon and mortise machining unit described in this invention;

[0036] Figure 4 This is a front view of the elevator guide rail tenon and mortise machining unit described in this invention;

[0037] Figure 5 This is a top view of the elevator guide rail counterboring processing unit described in this invention;

[0038] Figure 6 This is a top view of the longitudinal feeding mechanism and the transverse conveying mechanism described in this invention;

[0039] Figure 7 This is a top view of the elevator guide rail milling unit, the elevator guide rail tenon and mortise machining unit, and the conveying and feeding unit described in this invention.

[0040] Figure 8 This is a top view of the elevator guide rail tenon and mortise machining unit, the elevator guide rail countersinking machining unit, and the conveying and feeding unit described in this invention.

[0041] Figure 9 This is a side view of the guide rail transfer mechanism described in this invention;

[0042] Figure 10 This is a side view of the guide rail turning and transferring mechanism described in this invention;

[0043] Figure 11 This is a side view of a partial structure of the guide rail turning and transferring mechanism described in this invention;

[0044] Figure 12 This is a front view of the transverse conveying mechanism described in this invention;

[0045] Figure 13 This is a front view of the fixed-distance feeding assembly described in this invention;

[0046] Figure 14 This is a side view of the first (second) milling machine tool and the first guiding conveying device of the present invention;

[0047] Figure 15 This is a side view of the elevator guide rail countersinking processing unit described in this invention;

[0048] Figure 16 This is a schematic diagram of the structure of the first guiding and conveying device of the present invention.

[0049] In the figure: 1 Elevator guide rail milling unit, 11 First milling machine tool, 12 Second milling machine tool, 13 First guide conveying device;

[0050] 2 Elevator guide rail tenon and mortise machining unit, 21 Machine tool column, 22 Tenon milling power head, 23 Tenon milling power head, 24 Second guide conveying device;

[0051] 3 Elevator guide rail drilling and countersinking processing unit, 31 Drilling and countersinking machine tool base, 32 First drilling and countersinking power head, 33 Second drilling and countersinking power head, 34 Third guiding and conveying device;

[0052] 4 Conveying and feeding unit, 41 Longitudinal feeding mechanism, 42 Transverse conveying mechanism, 421 Fixed-distance feeding component, 43 Guide rail transfer mechanism, 44 Guide rail turning and transfer mechanism. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] like Figure 1-5As shown, the present invention provides an automatic processing production line for non-fixed length elevator guide rails, including an elevator guide rail milling processing unit 1, an elevator guide rail tenon and mortise processing unit 2, an elevator guide rail countersinking processing unit 3, and a conveying and feeding unit 4.

[0055] The elevator guide rail milling processing unit 1, elevator guide rail tenon and mortise processing unit 2, and elevator guide rail countersinking processing unit 3 are all arranged horizontally, and are all connected by a conveying and feeding unit 4 which conveys the guide rails to each processing unit in a horizontal manner.

[0056] The elevator guide rail milling processing unit 1 includes a first milling machine tool 11 and a second milling machine tool 12 with the same structure and arranged in a mirror symmetrical manner. A first guide conveying device 13 is installed on both the first milling machine tool 11 and the second milling machine tool 12. The first guide conveying device 13 conveys the elevator guide rail processed by the first milling machine tool 11 to the second milling machine tool 12.

[0057] The elevator guide rail tenon and mortise machining unit 2 includes a machine tool column 21, a tenon milling power head 22 and a mortise milling power head 23 symmetrically installed on both sides of the machine tool column 21, a through groove for transferring the elevator guide rail is opened in the transverse direction of the machine tool column 21, and a second guide conveying device 24 is installed in the through groove. The second guide conveying device 24 passes the elevator guide rail processed by the tenon milling power head 22 through the machine tool column 21 to the position of the mortise milling power head 23.

[0058] The elevator guide rail drilling and countersinking processing unit 3 includes a drilling and countersinking machine tool base 31, a first drilling and countersinking power head 32 and a second drilling and countersinking power head 33 mounted side by side on the drilling and countersinking machine tool base 31, and a third guiding and conveying device 34 provided on the drilling and countersinking machine tool base 31 between the first drilling and countersinking power head 32 and the second drilling and countersinking power head 33. The third guiding and conveying device 34 conveys the elevator guide rail processed by the first drilling and countersinking power head 32 to the second drilling and countersinking power head 33.

[0059] The elevator guide rail is sequentially transported by the conveying and feeding unit 4 to the first milling machine tool 11, the second milling machine tool 12, the male tenon milling power head 22, the female tenon milling power head 23, the first drilling and countersinking power head 32, and the second drilling and countersinking power head 33 for processing;

[0060] The present invention discloses an automatic processing production line for non-fixed length elevator guide rails, which adopts a horizontal series layout. The three core processing units are linearly connected through the conveying and feeding unit 4 to maintain the consistency of the processing posture of the elevator guide rails. It can be adapted to the processing of elevator guide rails of various specifications and integrates milling, tenoning, drilling / counter-hole processes, greatly improving processing efficiency.

[0061] The elevator guide rail milling unit 1 of the present invention adopts a mirror arrangement of two machine tools, and the elevator guide rail countersinking unit 3 adopts a parallel power head design, which saves space while ensuring processing symmetry.

[0062] The mortise and tenon processing unit 2 of the present invention adopts a column-type double-sided power head design and a through-slot design in conjunction with the second guide conveying device 24 to realize the through-shaft processing of elevator guide rails, which greatly shortens the cycle time.

[0063] The elevator guide rail of this invention adopts a full transverse conveying scheme. The guiding conveying device and the conveying and feeding unit 4 form a relay conveying, and the positioning accuracy is transferred step by step. The production line occupies a small area and makes more reasonable use of space, which is suitable for achieving efficient production in a limited production space.

[0064] In one embodiment,

[0065] like Figure 6 As shown, the above-mentioned conveying and feeding unit 4 includes a longitudinal feeding mechanism 41 and a transverse conveying mechanism 42. The two ends of the above-mentioned elevator guide rail milling processing unit 1, elevator guide rail tenon and mortise processing unit 2 and elevator guide rail countersinking processing unit 3 are all equipped with transverse conveying mechanisms 42. The elevator guide rails are transversely conveyed between each processing unit through the transverse conveying mechanism 42.

[0066] The first guiding conveyor 13, the second guiding conveyor 24 and the third guiding conveyor 34 mentioned above are all coaxial with their corresponding transverse conveying mechanism 42;

[0067] The longitudinal feeding mechanism 41 is responsible for the vertical flow of the elevator guide rail, and the transverse conveying mechanism 42 forms a horizontal conveying line that runs through each processing unit. The guide conveying device and the transverse conveying mechanism 42 are aligned on the same axis to achieve high-precision positioning of the elevator guide rail.

[0068] In one embodiment,

[0069] like Figure 7-8 As shown, the above-mentioned conveying and feeding unit 4 is also provided with a guide rail transfer mechanism 43 and a guide rail flipping transfer mechanism 44. The transverse conveying mechanism 42 between the elevator guide rail milling processing unit 1 and the elevator guide rail tenon and mortise processing unit 2 is arranged in parallel, and the guide rail transfer mechanism 43 is arranged between the two transverse conveying mechanisms 42.

[0070] The transverse conveying mechanism 42 between the elevator guide rail tenon and mortise processing unit 2 and the elevator guide rail countersinking processing unit 3 is arranged in parallel, and the guide rail flipping and transfer mechanism 44 is arranged between the two transverse conveying mechanisms 42.

[0071] For example Figure 9-11 As shown, the guide rail transfer mechanism 43 enables rapid transfer between the parallel transverse conveying mechanisms 42, further improving the space utilization of the production line and facilitating the adjustment of the production cycle of the production line.

[0072] The guide rail flipping and transfer mechanism 44 completes a precise 180° flip of the elevator guide rail, so that the elevator guide rail countersinking processing unit 3 can complete the processing of the elevator guide rail mounting holes and countersinking holes.

[0073] In one embodiment,

[0074] like Figure 12-13 As shown, the transverse conveying mechanism 42 is equipped with a fixed-distance feeding assembly 421 with guide rails. The fixed-distance feeding assembly 421 is arranged close to the first milling machine tool 11, the second milling machine tool 12, the male tenon milling power head 22, the female tenon milling power head 23, the first drilling and countersinking power head 32, and the second drilling and countersinking power head 33.

[0075] The fixed-distance feeding component 421 is close to each processing position. Due to inertia and other reasons, it is difficult to ensure the accurate delivery of the transverse conveying mechanism 42. For example, the transverse conveying mechanism 42 delivers the guide rail to the first milling machine tool 11. The fixed-distance feeding component 421 clamps the guide rail and accurately pushes it to the processing reference of the first milling machine tool 11 to ensure the positioning accuracy of the guide rail, thereby ensuring the processing quality of milling, tenoning, drilling and other processes.

[0076] In one embodiment,

[0077] like Figure 14 As shown, the first and second milling machine tools 11 and 12 are both equipped with slides arranged perpendicularly to the transverse conveying mechanism 42. A large back mounting surface milling head and an end face milling head are provided on the slides, and a first guide conveying device 13 is provided on the slides. The large back mounting surface and end face milling and conveying are completed in one step, realizing efficient double-sided processing of elevator guide rails.

[0078] In one embodiment,

[0079] like Figure 15 As shown, the first and second drilling and countersinking power heads 32 and 33 are both equipped with a drilling and countersinking composite tool, which completes drilling and countersinking in one go, greatly shortening the processing time.

[0080] In one embodiment,

[0081] like Figure 16 As shown, the first, second and third guiding and conveying devices 13, 24 and 34 all include liftable drive rollers and support rollers arranged on both sides of the drive rollers. The drive rollers are in contact with the elevator guide rails to ensure high-precision conveying while achieving seamless switching between the processing position and the conveying position.

[0082] The present invention controls the elevator guide rail milling unit 1, the elevator guide rail tenon and mortise machining unit 2, the elevator guide rail countersinking machining unit 3, and the conveying and feeding unit 4 to work together through an electrical control system.

[0083] An automated manufacturing process for non-fixed-length elevator guide rails includes the following steps:

[0084] A. The elevator guide rail is fed by the longitudinal feeding mechanism 41;

[0085] B. The longitudinal feeding mechanism 41 feeds the elevator guide rail longitudinally to the transverse conveying mechanism 42 at the front end of the first milling machine tool 11. The transverse conveying mechanism 42 transversely conveys the elevator guide rail to the end and the large rear mounting surface of the first milling machine tool 11 for milling one end.

[0086] C. After the end and the large rear mounting surface of one end are milled, the elevator guide rail is transported to the transverse conveying mechanism 42 at the front end of the second milling machine tool 12 by the first guide conveying device 13. The transverse conveying mechanism 42 then transports the elevator guide rail in the opposite direction to the second milling machine tool 12 to mill the end and the large rear mounting surface of the other end.

[0087] D. After the end of the elevator guide rail and the large rear mounting surface are milled, the guide rail transfer mechanism 43 transfers the elevator guide rail from the transverse conveying mechanism 42 at the front end of the second milling machine tool 12 to the transverse conveying mechanism 42 at the front end of the tenon milling power head 22. The transverse conveying mechanism 42 then transversely transports the elevator guide rail to the position of the tenon milling power head 22 to mill the tenon at one end.

[0088] E. After the male tenon at one end is processed, the elevator rail is transported to the transverse conveying mechanism 42 at the front end of the female tenon milling power head 23 by the second guide conveying device 24. The transverse conveying mechanism 42 then transports the elevator rail to the position of the female tenon milling power head 23 to mill the other end of the female tenon.

[0089] F. After the other end of the tenon is processed, the guide rail flipping mechanism 44 flips the elevator guide rail from the transverse conveying mechanism 42 at the front end of the tenon milling power head 23 to the transverse conveying mechanism 42 at the front end of the first drilling and countersinking power head 32. The transverse conveying mechanism 42 then transversely conveys the elevator guide rail to the position of the first drilling and countersinking power head 32 to process one end of the mounting hole and countersinking hole.

[0090] G. After the mounting hole and countersinking at one end are processed, the elevator guide rail is laterally transported by the third guide conveyor 34 to the lateral conveyor mechanism 42 at the front end of the second drilling and countersinking power head 33. The lateral conveyor mechanism 42 then transports the elevator guide rail in the opposite direction to the location of the second drilling and countersinking power head 33 to process the mounting hole and countersinking at the other end. After processing, the elevator guide rail is unloaded by the lateral conveyor mechanism 42.

[0091] In summary:

[0092] The present invention discloses an automatic processing production line for non-fixed length elevator guide rails, which adopts a compact horizontal layout and through-shaft processing, thereby improving space utilization while increasing processing accuracy and production efficiency.

[0093] The foregoing has shown and described the basic principles, main features, and advantages of this invention. The terms "front," "back," "left," and "right" used in the text are not specific and are primarily for illustrating the technical solution more intuitively, and do not constitute a limitation. Those skilled in the art should understand that the above embodiments are only for illustrating the technical concept and characteristics of this invention, and are intended to enable those skilled in the art to understand and implement the content of this invention. They should not be used to limit the scope of protection of this invention. All equivalent changes or modifications made according to the spirit and essence of this invention should be covered within the scope of protection of this invention.

Claims

1. An automated production line for processing non-fixed-length elevator guide rails, characterized in that: It includes an elevator guide rail milling processing unit (1), an elevator guide rail tenon and mortise processing unit (2), an elevator guide rail countersinking processing unit (3), and a conveying and feeding unit (4); The elevator guide rail milling processing unit (1), the elevator guide rail tenon and mortise processing unit (2) and the elevator guide rail countersinking processing unit (3) are all arranged horizontally, and are all connected by a conveying and feeding unit (4) for horizontal material feeding. An elevator guide rail milling processing unit (1) includes a first milling machine tool (11) and a second milling machine tool (12) with the same structure and arranged in a mirror symmetrical manner. A first guide conveying device (13) is installed on both the first milling machine tool (11) and the second milling machine tool (12). The elevator guide rail tenon and mortise processing unit (2) includes a machine tool column (21), a tenon milling power head (22) and a mortise milling power head (23) symmetrically installed on both sides of the machine tool column (21), a through groove for transferring the elevator guide rail is opened in the transverse direction of the machine tool column (21), and a second guide conveying device (24) is installed in the through groove. An elevator guide rail drilling and countersinking processing unit (3) includes a drilling and countersinking machine tool base (31), a first drilling and countersinking power head (32) and a second drilling and countersinking power head (33) mounted side by side on the drilling and countersinking machine tool base (31), and a third guiding and conveying device (34) provided on the drilling and countersinking machine tool base (31) between the first drilling and countersinking power head (32) and the second drilling and countersinking power head (33); The elevator guide rail is sequentially transported by the conveying and feeding unit (4) to the first milling machine tool (11), the second milling machine tool (12), the male tenon milling power head (22), the female tenon milling power head (23), the first drilling and countersinking power head (32), and the second drilling and countersinking power head (33) for processing.

2. The automatic processing production line for non-fixed-length elevator guide rails according to claim 1, characterized in that: The conveying and feeding unit (4) includes a longitudinal feeding mechanism (41) and a transverse conveying mechanism (42). The elevator guide rail milling processing unit (1), the elevator guide rail tenon and mortise processing unit (2) and the elevator guide rail countersinking processing unit (3) are all equipped with transverse conveying mechanisms (42) at both ends. The elevator guide rails are transversely conveyed between each processing unit through the transverse conveying mechanism (42). The first guiding conveyor (13), the second guiding conveyor (24) and the third guiding conveyor (34) are all coaxial with their corresponding transverse conveying mechanism (42).

3. The automatic processing production line for non-fixed-length elevator guide rails according to claim 2, characterized in that: The conveying and feeding unit (4) is also provided with a guide rail transfer mechanism (43) and a guide rail turning and transfer mechanism (44). The transverse conveying mechanism (42) between the elevator guide rail milling processing unit (1) and the elevator guide rail tenon processing unit (2) is arranged in parallel, and the guide rail transfer mechanism (43) is arranged between the two transverse conveying mechanisms (42). The transverse conveying mechanism (42) between the elevator guide rail tenon and mortise processing unit (2) and the elevator guide rail countersinking processing unit (3) is arranged in parallel, and a guide rail turning and transfer mechanism (44) is arranged between the two transverse conveying mechanisms (42).

4. The automatic processing production line for non-fixed-length elevator guide rails according to claim 2, characterized in that: The transverse conveying mechanism (42) is equipped with a fixed-distance feeding assembly (421) with guide rails. The fixed-distance feeding assembly (421) is arranged close to the first milling machine tool (11), the second milling machine tool (12), the male tenon milling power head (22), the female tenon milling power head (23), the first drilling and countersinking power head (32), and the second drilling and countersinking power head (33).

5. The automatic processing production line for non-fixed-length elevator guide rails according to claim 1, characterized in that: The first and second milling machine tools (11, 12) are each equipped with a slide table arranged perpendicular to the transverse conveying mechanism (42). A large back-mounting surface milling head and an end-face milling head are provided on the slide table, and a first guide conveying device (13) is provided on the slide table.

6. The automatic processing production line for non-fixed-length elevator guide rails according to claim 1, characterized in that: Both the first and second drilling and countersinking power heads (32, 33) are equipped with a drilling and countersinking composite tool.

7. The automatic processing production line for non-fixed-length elevator guide rails according to claim 1, characterized in that: The first, second, and third guiding and conveying devices (13, 24, 34) all include liftable drive rollers and support rollers arranged on both sides of the drive rollers, and the drive rollers are in contact with the elevator guide rails.

8. An automated manufacturing process for non-fixed-length elevator guide rails, the specific steps of which are as follows: A. The elevator guide rail is fed by the longitudinal feeding mechanism (41); B. The longitudinal feeding mechanism (41) feeds the elevator guide rail longitudinally to the transverse conveying mechanism (42) at the front end of the first milling machine tool (11). The transverse conveying mechanism (42) transversely conveys the elevator guide rail to the first milling machine tool (11) to mill one end and the large rear mounting surface. C. After the end and the large back mounting surface of one end are milled, the elevator guide rail is transported to the transverse conveying mechanism (42) at the front end of the second milling machine tool (12) by the first guide conveying device (13). The transverse conveying mechanism (42) then transports the elevator guide rail in the opposite direction to the second milling machine tool (12) to mill the end and the large back mounting surface of the other end. D. After the end of the elevator guide rail and the large rear mounting surface are milled, the guide rail transfer mechanism (43) transfers the elevator guide rail from the transverse conveying mechanism (42) at the front end of the second milling machine tool (12) to the transverse conveying mechanism (42) at the front end of the tenon milling power head (22). The transverse conveying mechanism (42) then transversely conveys the elevator guide rail to the position of the tenon milling power head (22) to mill the tenon at one end. E. After the male tenon is processed, the elevator guide rail is transported to the transverse conveying mechanism (42) at the front end of the female tenon milling power head (23) by the second guide conveying device (24). The transverse conveying mechanism (42) then transports the elevator guide rail to the position of the female tenon milling power head (23) to mill the other end of the female tenon. F. After the other end of the tenon is processed, the guide rail flipping and transfer mechanism (44) flips the elevator guide rail from the transverse conveying mechanism (42) at the front end of the tenon milling power head (23) to the transverse conveying mechanism (42) at the front end of the first drilling and countersinking power head (32). The transverse conveying mechanism (42) then transversely conveys the elevator guide rail to the position of the first drilling and countersinking power head (32) to process one end of the mounting hole and countersinking hole. After the mounting hole and countersinking are processed at one end, the elevator guide rail is laterally transported to the lateral conveying mechanism (42) at the front end of the second drilling and countersinking power head (33) by the third guiding conveying device (34). The lateral conveying mechanism (42) then transports the elevator guide rail in the opposite direction to the location of the second drilling and countersinking power head (33) to process the mounting hole and countersinking at the other end. After processing, the elevator guide rail is unloaded by the lateral conveying mechanism (42).

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