An automatic drilling device for elevator guide rails

Abstract

The present invention relates to the technical field of elevator accessories, and discloses an automatic drilling device for elevator guide rails, including a base, a connecting column, a top plate, and a drill bit. A positioning seat is fixedly connected to the top end of the base, a hydraulic mechanism is provided on the right side of the base, a chute is transversely opened at the center of the positioning seat, a positioning plate is fixedly connected to the inside of the chute, a guide rail body is provided at the upper end of the positioning plate, and stamping holes are symmetrically opened on both sides of the positioning plate along the center of the positioning seat. In the present invention, the bottom wall of the guide rail body is clamped between the side wall of the first limiting block inside the positioning plate and the slider, thereby realizing the rapid positioning of the guide rail body to be stamped. The third spring is squeezed to realize the rapid installation of guide rail bodies with different widths. At the same time, through the cooperative setting between the clamping sleeve and the roller, the bottom wall of the guide rail body is limited, thereby achieving stable transportation during the transportation of the guide rail body, effectively reducing the drilling error caused by the shaking of the guide rail body during the drilling process.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator accessories, and specifically relates to an automatic drilling device for elevator guide rails. Background Technique

[0002] An elevator guide rail is an elevator component composed of a steel rail and a connecting plate. While the guide rail plays a guiding role, it bears the impact force during the braking of the car. The elevator guide rail is a very important spare part in elevator production, and its load-bearing performance and impact resistance are very important data for measuring the safety performance of the elevator. During the processing and production of elevator guide rails, drilling needs to be carried out on the guide rails to meet the needs of later installation and fixation.

[0003] The existing elevator guide rail drilling equipment has the following technical defects during use: First, during the punching process of the drill bit on the guide rail, the guide rail is mostly delivered to the stamping area through a conveying mechanism for stamping. The positioning and clamping effect in the existing conveying mechanism is poor, resulting in shaking during the drilling process, which in turn affects the drilling accuracy of the guide rail and directly affects the safety performance of the elevator; Second, during the stamping process of the drill bit on the guide rail, the extrusion deformation in the contact area between the drill bit and the guide rail is large, and the pressure during contact is huge, resulting in easy inward depression in the contact area between the back of the guide rail and the punching hole, and a high defective rate of the guide rail drilling, which is not conducive to later processing and installation, and thus affects the safety of the elevator. Summary of the Invention

[0004] Aiming at the deficiencies existing in the use of the existing elevator guide rail drilling equipment in the background technique, the present invention provides an automatic drilling device for elevator guide rails, which has the advantages of stable clamping, accurate positioning, and effectively reducing the defective rate of the guide rail, and solves the technical problems proposed in the above background technique.

[0005] The present invention provides the following technical solutions: An automatic drilling device for elevator guide rails, including a base, a connecting column, a top plate, and a drill bit. The top end of the base is fixedly connected with a positioning seat. A hydraulic mechanism is arranged on the right side of the base. A chute is horizontally opened at the center of the positioning seat. A positioning plate is fixedly connected inside the chute. A guide rail body is arranged at the upper end of the positioning plate. Stamping holes are symmetrically opened on both sides of the positioning plate at the center of the positioning seat. A support mechanism is arranged outside the stamping holes;

[0006] A positioning groove is opened at the bottom wall of the center of the positioning seat and at the upper end of the chute. Second springs are arranged on the left and right side walls of the positioning groove. A clamping mechanism is arranged on the left side wall of the positioning groove. The clamping mechanism includes a clamping sleeve arranged on the left inner wall of the positioning groove. A roller is rotatably connected inside the clamping sleeve. The back of the clamping sleeve is fixedly connected to the second spring. A driving mechanism is arranged on the right side of the clamping mechanism. A knocking mechanism is arranged on the right side of the driving mechanism.

[0007] Preferably, the driving mechanism includes a driving sleeve arranged inside the positioning groove. Two conductive blocks are fixedly connected to the inner wall of the driving sleeve. The inner wall of the driving sleeve is fixedly connected to the second spring, and the two conductive blocks are symmetrically arranged along the second spring.

[0008] The driving mechanism further includes two conductive sheets fixedly connected to the inner side wall of the positioning groove. The central connection lines of the two conductive sheets and the two conductive blocks are all on the same straight line.

[0009] Preferably, the supporting mechanism includes a supporting sleeve slidably connected to the outside of the stamping hole. A first spring is fixedly connected to the bottom wall of the supporting sleeve. A telescopic rod is sleeved inside the first spring. An electromagnet is fixedly connected to the bottom wall of the telescopic rod. The other end of the first spring is fixedly connected to the electromagnet, and the bottom wall of the electromagnet is fixedly connected to the bottom wall of the stamping hole.

[0010] Preferably, the knocking mechanism includes a knocking sleeve arranged inside the positioning groove. A knocking wheel is rotatably connected to the inner wall of the knocking sleeve. The back of the knocking sleeve is fixedly connected to the second spring.

[0011] Preferably, a first limiting block is fixedly connected to the left side of the positioning plate. A second limiting block is fixedly connected to the right side of the positioning plate. A third spring is fixedly connected to the inner side wall of the second limiting block. The other end of the third spring is fixedly connected to a slider, and the slider is slidably connected to the inside of the positioning plate.

[0012] Preferably, the clamping mechanism is symmetrically arranged at equal intervals along the inner walls on the left and right sides of the positioning groove.

[0013] Preferably, the knocking mechanism is symmetrically arranged at equal intervals along the inner walls on the left and right sides of the positioning groove.

[0014] Preferably, the hydraulic mechanism includes a support platform fixedly connected to the right side of the base. A hydraulic cylinder is fixedly connected to the top of the support platform. A hydraulic rod is slidably connected to the left side of the hydraulic cylinder. The center of the hydraulic rod and the T-shaped center of the guide rail body are on the same straight line.

[0015] Preferably, the supporting sleeve is made of a magnetic material, and the magnetism is the same as that of the electromagnet.

[0016] The present invention has the following beneficial effects:

[0017] 1. The present invention realizes the rapid positioning of the guide rail body to be stamped by clamping the bottom wall of the guide rail body between the side wall of the first limiting block inside the positioning plate and the slider, and at the same time realizes the rapid installation of guide rail bodies with different widths by squeezing the third spring. Furthermore, the delivery of the guide rail body to be drilled is realized through the cooperative setting between the hydraulic cylinder and the hydraulic rod. The installation is convenient and the degree of automation is high.

[0018] 2. The present invention delivers the guide rail body into the interior of the positioning seat through the inner wall of the positioning plate along the positioning groove. At the same time, the cooperation among the clamping sleeve, the roller and the second spring is used to limit the bottom wall of the guide rail body, so as to achieve stable transportation during the transportation of the guide rail body, and effectively reduce the drilling error caused by the shaking of the guide rail body during the drilling process.

[0019] 3. The present invention slides the guide rail body along the interior of the positioning groove to the side wall of the driving sleeve, and then squeezes the second spring to make the conductive block on the back of the driving sleeve contact and conduct electricity with the conductive sheet on the side wall of the positioning groove. At the same time, the cooperation among the electromagnet, the telescopic rod, the first spring and the support sleeve is used to stably support the back of the guide rail body by the support sleeve, solving the problem of high rejection rate of the guide rail body caused by pressure deformation during the drilling process.

[0020] 4. After the drilling of the guide rail body along the positioning groove is completed, the present invention continues to deliver it and contacts the knocking sleeve, thereby driving the rotation of the knocking wheel. At the same time, the cooperation among the knocking sleeve, the knocking wheel and the second spring is used to knock the guide rail body to generate vibration, so as to eliminate the internal stress of the metal generated by drilling through vibration, improve the stability of the guide rail body, and significantly reduce the stress deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic diagram of the present invention;

[0022] Figure 2 It is a partially enlarged right view structure schematic diagram of the present invention;

[0023] Figure 3 It is a partially enlarged left view structure schematic diagram of the present invention;

[0024] Figure 4 It is a schematic diagram of the internal structure of the support mechanism of the present invention;

[0025] Figure 5 It is a schematic diagram of the internal structure of the positioning seat of the present invention;

[0026] Figure 6 It is of the present invention Figure 5 The enlarged schematic diagram of the structure at A in;

[0027] Figure 7 It is of the present invention Figure 5 The enlarged schematic diagram of the structure at B in;

[0028] Figure 8 It is a schematic diagram of the driving mechanism of the present invention.

[0029] In the figure: 1, base; 2, connecting column; 3, top plate; 4, drill bit; 5, positioning seat; 51, positioning groove; 511, conductive sheet; 52, support sleeve; 521, first spring; 522, telescopic rod; 523, electromagnet; 53, clamping sleeve; 531, roller; 54, knocking sleeve; 541, knocking wheel; 55, driving sleeve; 551, conductive block; 56, second spring; 6, support platform; 7, hydraulic cylinder; 8, hydraulic rod; 9, chute; 10, positioning plate; 101, first limit block; 102, second limit block; 103, third spring; 104, slider; 11, punching hole; 12, guide rail body. Detailed implementation manner

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1-8 , an automatic drilling device for elevator guide rails, including a base 1, a connecting column 2, a top plate 3, and a drill bit 4. The top end of the base 1 is fixedly connected with a positioning seat 5. A hydraulic mechanism is arranged on the right side of the base 1. A chute 9 is transversely opened at the center of the positioning seat 5. A positioning plate 10 is fixedly connected inside the chute 9. A guide rail body 12 is arranged at the upper end of the positioning plate 10. Punching holes 11 are symmetrically opened on both sides of the positioning plate 10 at the center of the positioning seat 5. A support mechanism is arranged outside the punching holes 11;

[0032] The center bottom wall of the positioning seat 5 and the upper end of the sliding groove 9 are provided with a positioning groove 51. Second springs 56 are arranged on the left and right side walls of the positioning groove 51. A clamping mechanism is arranged on the left side wall of the positioning groove 51. The clamping mechanism includes a clamping sleeve 53 arranged on the left inner wall of the positioning groove 51. A roller 531 is rotatably connected inside the clamping sleeve 53. The back of the clamping sleeve 53 is fixedly connected to the second spring 56. During the delivery process, the guide rail body 12 first contacts the inside of the clamping mechanism inside the positioning groove 51. The second spring 56 is further compressed through the rollers 531 inside the plurality of clamping sleeves 53, so that the side wall of the guide rail body 12 drives the roller 531 to rotate under the action of friction, thereby achieving stable clamping of the side wall of the guide rail body 12 and obtaining a relatively stable motion state before drilling. The guide rail body 12 is delivered into the inside of the positioning seat 5 along the inner wall of the positioning plate through the positioning groove 51. At the same time, the cooperation between the clamping sleeve 53, the roller 531, and the second spring 56 realizes the limit of the bottom wall of the guide rail body 12, thereby achieving stable transportation during the transportation of the guide rail body 12 and effectively reducing the drilling error caused by the shaking of the guide rail body 12 during the drilling process. A driving mechanism is arranged on the right side of the clamping mechanism, and a knocking mechanism is arranged on the right side of the driving mechanism.

[0033] The driving mechanism includes a driving sleeve 55 arranged inside the positioning groove 51. Two conductive blocks 551 are fixedly connected to the inner wall of the driving sleeve 55. The inner wall of the driving sleeve 55 is fixedly connected to the second spring 56. The two conductive blocks 551 are symmetrically arranged along the second spring 56;

[0034] The driving mechanism further includes two conductive sheets 511 fixedly connected to the inner side wall of the positioning groove 51. The central connection lines of the two conductive sheets 511 and the two conductive blocks 551 are all on the same straight line.

[0035] The support mechanism includes a support sleeve 52 slidably connected to the outside of the punching hole 11. A first spring 521 is fixedly connected to the bottom wall of the support sleeve 52. A telescopic rod 522 is sleeved inside the first spring 521. An electromagnet 523 is fixedly connected to the bottom wall of the telescopic rod 522. The other end of the first spring 521 is fixedly connected to the electromagnet 523. The bottom wall of the electromagnet 523 is fixedly connected to the bottom wall of the punching hole 11. When the guide rail body 12 continues to move forward until it reaches the driving sleeve 55, the side wall of the guide rail body 12 squeezes the driving sleeve 55, causing the second spring 56 to compress. As a result, the conductive block 551 contacts the conductive sheet 511 to conduct electricity. At this time, the electromagnet 523 of the support mechanism is driven by an electrical signal to turn on. Under the action of magnetic repulsion, the first spring 521 elongates, and the telescopic rod 522 elongates synchronously, thereby driving the support sleeve 52 to move upward. At the same time, the hydraulic mechanism stops advancing, and the drill bit 4 moves down into the punching hole 11 to perform drilling. The bottom wall of the support sleeve 52 is stably in contact with the back of the guide rail body 12 through the support mechanism. The guide rail body 12 slides along the positioning groove 51 to the side wall of the driving sleeve 55, thereby squeezing the second spring 56 to make the conductive block 551 on the back of the driving sleeve 55 contact the conductive sheet 511 on the side wall of the positioning groove 51 to conduct electricity. At the same time, through the coordinated setting among the electromagnet 523, the telescopic rod 522, the first spring 521, and the support sleeve 521, the effect of stably supporting the back of the guide rail body 12 by the support sleeve 521 is achieved, solving the problem of high rejection rate of the guide rail body 12 caused by pressure deformation during the drilling process.

[0036] The knocking mechanism includes a knocking sleeve 54 arranged inside the positioning groove 51. A knocking wheel 541 is rotatably connected to the inner wall of the knocking sleeve 54. The back of the knocking sleeve 54 is fixedly connected to the second spring 56. After the drilling is completed, the guide rail body 12 is advanced continuously, so that the guide rail body 12 contacts the knocking wheel 541 inside the knocking sleeve 54. When contacting, the knocking wheel 541 is driven to rotate, thereby realizing the knocking of the guide rail body 12. The internal stress during the drilling of the guide rail body 12 is effectively removed through vibration, significantly reducing the rejection rate of the guide rail body 12 caused by the metal internal stress generated during drilling.

[0037] A first limiting block 101 is fixedly connected to the left side of the positioning plate 10, a second limiting block 102 is fixedly connected to the right side of the positioning plate 10, a third spring 103 is fixedly connected to the inner side wall of the second limiting block 102, the other end of the third spring 103 is fixedly connected to a slider 104, and the slider 104 is slidably connected inside the positioning plate 10. At the beginning, one end of the T-shaped bottom wall of the guide rail body 12 is first clamped between the side wall of the slider 104 and the first limiting block 101, and the third spring 103 is compressed to clamp the guide rail body 12 to the bottom wall of the positioning plate 10, which can realize the rapid installation of the guide rail body 12 according to different widths of the guide rail body 12. By clamping the bottom wall of the guide rail body 12 between the side wall of the first limiting block 101 inside the positioning plate 10 and the slider 104, the rapid positioning of the guide rail body 12 to be punched is realized. At the same time, the rapid installation of the guide rail body 12 with different widths is realized by compressing the third spring 103.

[0038] The clamping mechanisms are symmetrically arranged at equal intervals along the left and right inner side walls of the positioning groove 51. Multiple groups of clamping mechanisms enable stable and uniform clamping of the bottom wall of the guide rail body 12.

[0039] The knocking mechanisms are symmetrically arranged at equal intervals along the left and right inner side walls of the positioning groove 51. Multiple groups of knocking mechanisms enable stable and uniform knocking of the drilled guide rail body 12.

[0040] The hydraulic mechanism includes a support platform 6 fixedly connected to the right side of the base 1, a hydraulic cylinder 7 is fixedly connected to the top of the support platform 6, a hydraulic rod 8 is slidably connected to the left side of the hydraulic cylinder 7, and the center of the hydraulic rod 8 is on the same straight line as the T-shaped center of the guide rail body 12. After the installation is completed, the hydraulic mechanism is started, the hydraulic cylinder 7 drives the hydraulic rod 8 to extend, and then the side wall of the guide rail body 12 is extruded to start delivery. When the delivery starts, the guide rail body 12 moves along the inside of the positioning groove 51. The delivery of the guide rail body 12 to be drilled is realized through the cooperative setting between the hydraulic cylinder 7 and the hydraulic rod 8. The installation is convenient and the automation degree is high.

[0041] The support sleeve 52 is made of magnetic material, and the magnetism is the same as that of the electromagnet 523. It is ensured that the generated magnetic repulsive force enables stable support of the bottom wall of the support sleeve 52 and the track body 12.

[0042] The usage method (working principle) of the present invention is as follows:

[0043] At the beginning, one end of the T-shaped bottom wall of the guide rail body 12 is clamped between the side wall of the slider 104 and the first limit block 101, and the third spring 103 is squeezed to clamp the guide rail body 12 to the bottom wall of the positioning plate 10, so that the guide rail body 12 can be quickly installed according to the guide rail body 12 of different widths. After the installation is completed, the hydraulic mechanism is turned on, and the hydraulic cylinder 7 drives the hydraulic rod 8 to extend, thereby squeezing the side wall of the guide rail body 12 to start delivery. When the delivery starts, the guide rail body 12 moves along the inside of the positioning groove 51 (along the Figure 1 In the delivery process, the guide rail body 12 first contacts the inside of the clamping mechanism inside the positioning groove 51, and then squeezes the second spring 56 through the rollers 531 inside the clamping sleeves 53, so that the side wall of the guide rail body 12 drives the rollers 531 to rotate under the action of friction, thereby achieving stable clamping of the side wall of the guide rail body 12, and obtaining a relatively stable motion state before drilling.

[0044] When the guide rail body 12 continues to move until it reaches the driving sleeve 55, the side wall of the guide rail body 12 squeezes the driving sleeve 55 to compress the second spring 56, thereby causing the conductive block 551 to contact the conductive sheet 511 and be energized. At this time, the electrical signal drives the electromagnet 523 of the support mechanism to turn on, and the first spring 521 is extended under the action of the magnetic repulsion force, and the telescopic rod 522 is extended synchronously, thereby driving the support sleeve 52 to move upward. At the same time, the hydraulic mechanism stops advancing, and the drill bit 4 moves down to the inside of the punching hole 11 to drill a hole. The bottom wall of the support sleeve 52 is in stable contact with the back of the guide rail body 12 through the support mechanism, so that the pressure on the guide rail body 12 during the drilling process is balanced, thereby reducing the pressure deformation of the guide rail body 12 and improving the drilling accuracy.

[0045] When the initial punching is completed, the drill bit 4 moves up, and the hydraulic mechanism continues to be turned on for advancement and repeated secondary drilling. Drilling is performed according to the number of punching holes required. After the drilling is completed, the guide rail body 12 continues to be advanced so that the guide rail body 12 contacts the knocking wheel 541 inside the knocking sleeve 54, and the knocking wheel 541 is driven to rotate during contact, thereby achieving the knocking of the guide rail body 12. The internal stress of the guide rail body 12 during the drilling process is effectively removed through vibration, and the defective rate of the guide rail body 12 caused by the metal internal stress generated by drilling is significantly reduced. At this point, the drilling work is completed, and the drilled guide rail body 12 is taken out from the inside of the positioning plate 10, and the hydraulic mechanism returns to its initial position. At this time, the compressed third spring 103 returns to its initial position to prepare for the drilling of the next guide rail body 12.

[0046] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic drilling device for elevator guide rails, comprising a base (1), a connecting column (2), a top plate (3), and a drill bit (4), characterized in that: A positioning seat (5) is fixedly connected to the top end of the base (1). A hydraulic mechanism is provided on the right side of the base (1). A chute (9) is transversely formed in the center of the positioning seat (5). A positioning plate (10) is fixedly connected inside the chute (9). A guide rail body (12) is provided at the upper end of the positioning plate (10). Stamping holes (11) are symmetrically formed on both sides of the positioning plate (10) along the center of the positioning seat (5). A support mechanism is provided outside the stamping holes (11). A positioning groove (51) is formed in the bottom wall of the center of the positioning seat (5) and at the upper end of the chute (9). Second springs (56) are provided on the left and right side walls of the positioning groove (51). A clamping mechanism is provided on the left side wall of the positioning groove (51). The clamping mechanism includes a clamping sleeve (53) provided on the left inner wall of the positioning groove (51). A roller (531) is rotatably connected inside the clamping sleeve (53). The back of the clamping sleeve (53) is fixedly connected to the second spring (56). A driving mechanism is provided on the right side of the clamping mechanism. A knocking mechanism is provided on the right side of the driving mechanism. The driving mechanism includes a driving sleeve (55) provided inside the positioning groove (51). Two conductive blocks (551) are fixedly connected to the inner wall of the driving sleeve (55). The inner wall of the driving sleeve (55) is fixedly connected to the second spring (56). The two conductive blocks (551) are symmetrically arranged along the second spring (56). The driving mechanism further includes two conductive sheets (511) fixedly connected to the inner side wall of the positioning groove (51). The central connection lines of the two conductive sheets (511) and the two conductive blocks (551) are all on the same straight line. The support mechanism includes a support sleeve (52) slidably connected outside the stamping hole (11). A first spring (521) is fixedly connected to the bottom wall of the support sleeve (52). A telescopic rod (522) is sleeved inside the first spring (521). An electromagnet (523) is fixedly connected to the bottom wall of the telescopic rod (522). The other end of the first spring (521) is fixedly connected to the electromagnet (523). The bottom wall of the electromagnet (523) is fixedly connected to the bottom wall of the stamping hole (11). The support sleeve (52) is made of a magnetic material, and the magnetism is the same as that of the electromagnet (523). When the guide rail body (12) continues to move until it reaches the driving sleeve (55), the side wall of the guide rail body (12) squeezes the driving sleeve (55) to compress the second spring (56), so that the conductive block (551) contacts the conductive sheet (511) to be electrified. At this time, the electromagnet (523) of the support mechanism is driven by an electrical signal to be turned on. Under the action of magnetic repulsion, the first spring (521) elongates, and the telescopic rod (522) elongates synchronously, thereby driving the support sleeve (52) to move upward.

2. The automatic drilling device for elevator guide rails according to claim 1, characterized in that: The knocking mechanism includes a knocking sleeve (54) provided inside the positioning groove (51). A knocking wheel (541) is rotatably connected to the inner wall of the knocking sleeve (54). The back of the knocking sleeve (54) is fixedly connected to the second spring (56).

3. An automatic drilling device for elevator guide rails according to claim 1, characterized in that: A first limiting block (101) is fixedly connected to the left side of the positioning plate (10). A second limiting block (102) is fixedly connected to the right side of the positioning plate (10). A third spring (103) is fixedly connected to the inner side wall of the second limiting block (102). The other end of the third spring (103) is fixedly connected to a slider (104), and the slider (104) is slidably connected inside the positioning plate (10).

4. An automatic drilling device for elevator guide rails according to claim 1, characterized in that: The clamping mechanism is symmetrically arranged at equal intervals along the left and right inner side walls of the positioning groove (51).

5. An automatic drilling device for elevator guide rails according to claim 2, characterized in that: The knocking mechanism is symmetrically arranged at equal intervals along the left and right inner side walls of the positioning groove (51).

6. The automatic drilling equipment for elevator guide rails according to claim 1, wherein: The hydraulic mechanism includes a support platform (6) fixedly connected to the right side of the base (1). A hydraulic cylinder (7) is fixedly connected to the top of the support platform (6). A hydraulic rod (8) is slidably connected to the left side of the hydraulic cylinder (7), and the center of the hydraulic rod (8) is on the same straight line as the T-shaped center of the guide rail body (12).

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