Elevator rail calibration robot clamp
By designing the dead center mechanism of the power telescopic component in the fixture of the elevator rail calibration robot, the problems of high manual labor intensity and heavy load of the power source of the fixture in the traditional elevator guide rail calibration method are solved, and a more efficient and reliable elevator guide rail calibration is achieved.
Patent Information
- Application Number
- CN202421119509.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The traditional elevator guide rail calibration method relies on manual labor, which has problems such as high labor intensity, high risk and low calibration efficiency. At the same time, the elevator guide rail clamp requires a large clamping force during the calibration process, resulting in a large load on the power source and a short service life.
An elevator track calibration robot clamp is designed. The first telescopic rod and the second telescopic rod of the power telescopic assembly are collinear to form a dead point mechanism, which can effectively maintain the clamping state of the clamp and reduce the load on the power source.
Through the design of the dead center mechanism, the load on the electric push rod is reduced, its service life is significantly increased, and the calibration efficiency of the elevator guide rail is improved.
Smart Images
Figure CN222374095U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator guide rail correction, in particular to an elevator guide rail correction robot fixture. Background Art
[0002] Elevator guide rails are the safety rails that elevators use to travel up and down the shaft. After installation, they need to be calibrated to ensure that their installation accuracy meets standard requirements. Traditional elevator guide rail calibration is done manually, which is labor-intensive, dangerous, and inefficient. Therefore, the future development trend of the elevator installation industry is to design and develop elevator guide rail calibration robots to automatically calibrate elevator guide rails.
[0003] An important step in calibrating elevator guide rails with an elevator guide rail calibration robot is to use a fixture to clamp the elevator guide rails; however, since the standard guide rails used for elevators are relatively heavy (100 kg to 250 kg per rail), the fixture requires a larger clamping force to maintain the clamping state during the calibration process to resist the reaction force when calibrating the elevator guide rails. This will put a relatively large load on the power source of the fixture, seriously affecting the service life of the fixture power source. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the prior art. The utility model provides an elevator track calibration robot clamp. The first telescopic rod and the second telescopic rod of the power telescopic assembly can be collinear to form a dead point mechanism. The dead point mechanism can effectively maintain the clamping state of the clamp, which is beneficial to reducing the load of the power source, that is, reducing the load of the electric push rod, and can significantly improve the service life of the electric push rod.
[0005] The utility model provides an elevator rail calibration robot fixture, comprising a base plate, and a power telescopic assembly, a fixture assembly arm and a fixture reference block arranged on the base plate, wherein the fixture assembly arm is driven by the power telescopic assembly to clamp the elevator guide rail on the fixture reference block;
[0006] The power telescopic assembly includes an electric push rod, a first telescopic rod and a second telescopic rod. The body of the electric push rod is rotatably set on the base plate, one end of the first telescopic rod is rotatably set on the base plate, the other end of the first telescopic rod is rotatably connected to the output end of the electric push rod, one end of the second telescopic rod is rotatably connected to the output end of the electric push rod, and the other end of the second telescopic rod is rotatably connected to the clamp assembly arm.
[0007] Specifically, the clamp assembly arm includes a sliding base, a first clamp rod, a second clamp rod and two parallel connecting rods, the sliding base is slidably arranged on the bottom plate, and the sliding base is rotatably connected to the second telescopic rod;
[0008] One end of the two parallel connecting rods is rotatably connected to the sliding base, and the other end of the two parallel connecting rods is rotatably connected to the first clamp rod; the second clamp rod is rotatably connected to the two parallel connecting rods, and the second clamp rod is located between the first clamp rod and the sliding base; the first clamp rod and the second clamp rod are parallel to each other.
[0009] Specifically, the fixture reference block includes a first reference portion and a second reference portion, a reference surface of the first reference portion and a reference surface of the second reference portion are perpendicular to each other, and a body of the first fixture rod is parallel to the reference surface of the first reference portion;
[0010] In the clamped state, the first clamp rod clamps the elevator guide rail on the reference plane of the first reference part, and the second clamp rod clamps the elevator guide rail on the reference plane of the second reference part; one end of the second clamp rod points vertically to the reference plane of the second reference part, and one end of the second reference part points vertically to the side of the first clamp rod close to the second clamp rod.
[0011] Specifically, a rubber pad is provided on the side of the first clamp rod close to the second clamp rod.
[0012] Specifically, the clamp assembly arm further includes a return spring, one end of the return spring is rotatably connected to any one of the two parallel connecting rods, and the other end of the return spring is rotatably connected to the sliding base;
[0013] In the clamped state, the return spring is in a stretched state.
[0014] Specifically, a first push rod and a second push rod are inserted into the return spring, and the return spring, the first push rod and the second push rod are coaxial. One end of the first push rod away from the second push rod is rotatably connected to any one of the two parallel connecting rods, and one end of the second push rod away from the first push rod is rotatably connected to the sliding base.
[0015] Specifically, the two parallel connecting rods are provided with a plurality of groups of adjustment holes along their length direction, and any group of the plurality of groups of adjustment holes is used for installing the first clamp rod.
[0016] Specifically, the first telescopic rod and the second telescopic rod each include a support rod, an adjustment rod and a rotating head, one end of the support rod is connected to the adjustment rod based on a thread, and the other end of the support rod is provided with a hinge joint;
[0017] The rotating head comprises a first rotating connection part and a second rotating connection part, the first rotating connection part and the second rotating connection part are perpendicular to each other, and the first rotating connection part is rotationally connected to an end of the adjusting rod away from the supporting rod.
[0018] Specifically, the output end of the electric push rod is rotatably provided with a connecting shaft, and the connecting shaft is perpendicular to the bottom plate;
[0019] The second rotational connection portion of the first telescopic rod is rotationally connected to the connection shaft, and the second rotational connection portion of the second telescopic rod is rotationally connected to the connection shaft.
[0020] Specifically, a limiting member is provided at one end of the first telescopic rod connected to the electric push rod, and when the first telescopic rod and the second telescopic rod are in a collinear relationship, the limiting member contacts the second telescopic rod; or
[0021] A limiting member is provided at one end of the second telescopic rod connected to the electric push rod, and when the first telescopic rod and the second telescopic rod are in a collinear relationship, the limiting member contacts the first telescopic rod.
[0022] Compared with the prior art, the beneficial effects of the utility model are:
[0023] In the elevator track calibration robot clamp of the utility model, when the clamp assembly arm is driven by the power telescopic assembly to clamp the elevator guide rail on the clamp reference block, the first telescopic rod and the second telescopic rod of the power telescopic assembly can be collinear to form a dead point mechanism, which can effectively maintain the clamping state of the clamp, and make the reaction force of the elevator guide rail on the clamp assembly arm be borne entirely by the collinear first telescopic rod and the second telescopic rod, and will not be transmitted to the electric push rod; in this way, during the calibration process of the elevator guide rail, the electric push rod only needs to provide an initial clamping force, and there is no need to maintain the clamping state through the electric push rod, which can effectively reduce the load of the electric push rod (i.e., the power source), thereby significantly improving the service life of the electric push rod (i.e., the power source). BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0025] Figure 1 This is a first structural schematic diagram of the elevator track calibration robot fixture in an embodiment of the utility model;
[0026] Figure 2 This is a second structural schematic diagram of the elevator track calibration robot fixture in an embodiment of the utility model;
[0027] Figure 3 It is a structural schematic diagram of the clamp assembly arm in an embodiment of the utility model;
[0028] Figure 4 It is a schematic diagram of the structure of the first telescopic rod and the second telescopic rod in an embodiment of the utility model;
[0029] Figure 5 It is a schematic diagram of the connection structure of the electric push rod, the first telescopic rod and the second telescopic rod in the embodiment of the utility model;
[0030] Figure 6 It is a schematic diagram of the connection structure of the electric push rod, the first telescopic rod and the bottom plate in the embodiment of the utility model.
[0031] In the accompanying drawings, 1, elevator guide rail; 10, support rod; 11, hinge joint; 20, adjustment rod; 21, top screw hole; 30, rotating head; 31, first rotating connection part; 32, second rotating connection part; 40, stopper; 100, bottom plate; 110, bracket; 120, support column; 200, power telescopic assembly; 210, electric push rod; 220, connecting shaft; 300, first telescopic rod; 400, second telescopic rod; 5 00, clamp assembly arm; 510, sliding base; 511, sliding guide rail; 520, first clamp rod; 521, rubber pad; 530, second clamp rod; 540, connecting rod; 541, adjustment hole; 550, return spring; 551, first plug screw; 552, second plug screw; 553, first push rod; 554, second push rod; 600, clamp reference block; 610, first reference part; 620, second reference part. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] The utility model provides an elevator track calibration robot fixture. Figure 1 The first structural schematic diagram of the elevator track calibration robot fixture in the embodiment of the utility model is shown. Figure 2The second structural schematic diagram of the elevator track calibration robot fixture in the embodiment of the utility model is shown, the elevator track calibration robot fixture comprises a base plate 100, and a power telescopic assembly 200, a fixture assembly arm 500 and a fixture reference block 600 arranged on the base plate 100, the fixture assembly arm 500 is movably arranged on the base plate 100, the fixture reference block 600 is fixedly arranged on the base plate 100, and the fixture assembly arm 500 is driven by the power telescopic assembly 200 to clamp the elevator guide rail 1 on the fixture reference block 600; The power telescopic assembly 200 includes an electric push rod 210, a first telescopic rod 300 and a second telescopic rod 400. The body of the electric push rod 210 is rotatably set on the base plate 100, one end of the first telescopic rod 300 is rotatably set on the base plate 100, the other end of the first telescopic rod 300 is rotatably connected to the output end of the electric push rod 210, one end of the second telescopic rod 400 is rotatably connected to the output end of the electric push rod 210, and the other end of the second telescopic rod 400 is rotatably connected to the clamp assembly arm 500.
[0034] In the elevator track calibration robot fixture of the utility model, please refer to Figure 2 When the clamp assembly arm 500 is driven by the power telescopic assembly 200 to clamp the elevator guide rail 1 on the clamp reference block 600, the first telescopic rod 300 and the second telescopic rod 400 of the power telescopic assembly 200 can be collinear to form a dead point mechanism, which can effectively maintain the clamping state of the clamp, and make the reaction force of the elevator guide rail 1 on the clamp assembly arm 500 be borne entirely by the collinear first telescopic rod 300 and the second telescopic rod 400, and will not be transmitted to the electric push rod 210; in this way, during the calibration process of the elevator guide rail 1, the electric push rod 210 only needs to provide an initial clamping force, and there is no need to maintain the clamping state through the electric push rod 210, which can effectively reduce the load of the electric push rod 210 (i.e., the power source), thereby significantly improving the service life of the electric push rod 210 (i.e., the power source).
[0035] Specifically, when the first telescopic rod 300 and the second telescopic rod 400 are collinear, the first telescopic rod 300 and the electric push rod 210 form a first triangular structure, ensuring that the reaction force of the elevator guide rail 1 on the clamp assembly arm 500 is entirely borne by the collinear first telescopic rod 300 and the second telescopic rod 400, and will not be transmitted to the electric push rod 210, which can effectively reduce the load of the electric push rod 210, thereby significantly improving the service life of the electric push rod 210.
[0036] Moreover, the first telescopic rod 300 is mainly used to constrain the rotation trajectory of the electric push rod 210. By adjusting the length of the first telescopic rod 300, the end position of the output end of the electric push rod 210 can be set when the electric push rod 210 is at the maximum extension length. The second telescopic rod 400 is mainly used to adjust the moving distance of the clamp assembly arm 500. By adjusting the length of the second telescopic rod 400, the clamping force between the clamp assembly arm 500 and the clamp reference block 600 can be set; the longer the length of the second telescopic rod 400, the greater the clamping force between the clamp assembly arm 500 and the clamp reference block 600 when the first telescopic rod 300 and the second telescopic rod 400 are collinear.
[0037] See also Figure 1 and Figure 2 The clamp assembly arm 500 includes a sliding base 510, a first clamp rod 520, a second clamp rod 530 and two parallel connecting rods 540. The sliding base 510 is slidably arranged on the bottom plate 100. The sliding base 510 is rotatably connected to one end of the second telescopic rod 400 away from the electric push rod 210; one end of the two parallel connecting rods 540 is rotatably connected to the sliding base 510, and the other end of the two parallel connecting rods 540 is rotatably connected to the first clamp rod 520; the second clamp rod 530 is rotatably connected to the two parallel connecting rods 540, and the second clamp rod 530 is located between the first clamp rod 520 and the sliding base 510; the first clamp rod 520 and the second clamp rod 530 are parallel to each other.
[0038] The two parallel connecting rods 540 form a first parallelogram structure between the first clamp rod 520 and the sliding base 510, and the first clamp rod 520 and the second clamp rod 530 form a second parallelogram structure in the first parallelogram structure, so that the first clamp rod 520, the second clamp rod 530 and the two parallel connecting rods 540 can jointly play a limiting role to lock the elevator guide rail 1 on the clamp reference block 600; moreover, the first clamp rod 520 and the second clamp rod 530 are interlocked, and the two are linked to clamp or release at the same time; the first clamp rod 520, the second clamp rod 530 and the clamp reference block 600 and other components cooperate, in addition to clamping the elevator guide rail 1, and also have a positioning function, providing a reference point for the robot's track calibration work.
[0039] It should be noted that the clamping action of the elevator track calibration robot clamp is to push the elevator guide rail 1 to the reference position of the clamp reference block 600 in one direction and then clamp it. If the first clamp rod 520 and the second clamp rod 530 do not push the elevator guide rail 1 to the reference position from two directions at the same time, there may be a situation where one direction is clamped and the other direction is not in place. Therefore, the first parallelogram structure and the second parallelogram structure can effectively ensure that the clamp assembly arm 500 clamps the elevator guide rail 1.
[0040] Specifically, the sliding base 510 is slidably disposed on the bottom plate 100 based on a sliding guide rail 511 .
[0041] See also Figure 1 and Figure 2 The fixture reference block 600 includes a first reference portion 610 and a second reference portion 620, the reference surface of the first reference portion 610 and the reference surface of the second reference portion 620 are perpendicular to each other, and the body of the first fixture rod 520 is parallel to the reference surface of the first reference portion 610;
[0042] In the clamped state, the first clamp rod 520 clamps the elevator guide rail 1 on the reference plane of the first reference portion 610, and the second clamp rod 530 clamps the elevator guide rail 1 on the reference plane of the second reference portion 620; one end of the second clamp rod 530 points vertically to the reference plane of the second reference portion 620, and one end of the second reference portion 620 points vertically to the side of the first clamp rod 520 close to the second clamp rod 530.
[0043] The elevator guide rail 1 is a T-shaped guide rail. When the T-shaped guide rail is calibrated, the top surface of the convex ridge of the T-shaped guide rail contacts the reference surface of the first reference part 610, and the first clamp rod 520 contacts the bottom surface of the T-shaped guide rail, so that the elevator guide rail 1 is clamped on the first reference part 610; at the same time, a convex ridge side surface of the T-shaped guide rail contacts the reference surface of the second reference part 620, and the second clamp rod 530 contacts the other convex ridge side surface of the T-shaped guide rail, so that the elevator guide rail 1 is clamped on the second reference part 620. That is, the clamp assembly arm 500 can clamp the elevator guide rail 1 on the clamp reference block 600 from two directions, and the convex ridge top surface and convex ridge side surface of the T-shaped guide rail can be close to the reference surface of the clamp reference block 600, which is conducive to firmly clamping the elevator guide rail 1 and ensuring the accuracy of the calibration work. In addition, the length of the first clamp rod 520 is greater than the bottom width of the T-shaped guide rail, which is convenient for firmly clamping the T-shaped guide rail.
[0044] Moreover, the side of the first clamp rod 520 in contact with the T-shaped guide rail is a plane, which is also parallel to the reference plane of the first reference portion 610; the side of the second clamp rod 530 in contact with the T-shaped guide rail is also a plane, which is parallel to the reference plane of the second reference portion 620. When the first clamp rod 520 and the second clamp rod 530 gradually clamp the elevator guide rail 1, under the action of the parallelogram structure, even if the initial position of the calibration surface of the elevator guide rail 1 is not parallel to the reference plane of the clamp reference block 600, the clamping process can gradually straighten the elevator guide rail 1.
[0045] See also Figure 1 or Figure 2A rubber pad 521 is provided on the side of the first clamp rod 520 close to the second clamp rod 530. The rubber pad 521 can prevent slipping, which is beneficial to improving the locking ability of the elevator guide rail 1; at the same time, the rubber pad 521 has a certain elasticity, which is convenient for pre-clamping operation.
[0046] Figure 3 The schematic diagram of the structure of the clamp assembly arm in the embodiment of the utility model is shown, the clamp assembly arm 500 further includes a return spring 550, one end of the return spring 550 is rotatably connected to any one of the two parallel connecting rods 540, and the other end of the return spring 550 is rotatably connected to the sliding base 510; in the clamped state, the return spring 550 is in a stretched state. Specifically, in the clamped state, the return spring 550 and any one of the two parallel connecting rods 540 form a second triangular structure.
[0047] When the clamping state is released, the return spring 550 will shrink and pull the connecting rod 540, so that the distance between the first clamp rod 520 and the second clamp rod 530 will increase, so that the clamp assembly arm 500 can be more easily separated from the elevator guide rail 1; and when performing the next clamping operation, the first clamp rod 520 and the second clamp rod 530 with a larger distance between them leave enough entry space for the elevator guide rail 1, which is convenient for operation.
[0048] See also Figure 3 Any one of the two parallel connecting rods 540 is provided with a first driving screw 551 at one end close to the sliding base 510, and a second driving screw 552 is provided on the sliding base 510. One end of the return spring 550 is rotatably connected to the first driving screw 551, and the other end of the return spring 550 is rotatably connected to the second driving screw 552; a first push rod 553 and a second push rod 554 are passed through the return spring 550, and the return spring 550, the first push rod 553 and the second push rod 554 are coaxial, and one end of the first push rod 553 away from the second push rod 554 is rotatably connected to the first driving screw 551, and one end of the second push rod 554 away from the first push rod 553 is rotatably connected to the second driving screw 552.
[0049] When the first push rod 553 and the second push rod 554 are connected, the first driving screw 551 and the second driving screw 552 can be prevented from approaching each other. Therefore, the first push rod 553 and the second push rod 554 of sufficient length can keep the return spring 550 in a stretched state. The first push rod 553 and the second push rod 554 cooperate with the return spring 550 in a stretched state to keep the connecting rod 540 in a suitable posture in a natural state, so that the first clamp rod 520 and the second clamp rod 530 maintain a suitable distance, so as to leave enough space for the elevator guide rail 1 to enter and facilitate operation.
[0050] In some specific embodiments, see Figure 1 or Figure 2 The two parallel connecting rods 540 are provided with a plurality of adjustment holes 541 along their length direction, and any one of the plurality of adjustment holes 541 is used to install the first clamp rod 520. By changing the installation position of the first clamp rod 520, the distance between the first clamp rod 520 and the second clamp rod 530 can be adjusted to adapt to elevator guide rails 1 of different specifications and models.
[0051] Figure 4 The schematic diagram of the structure of the first telescopic rod and the second telescopic rod in the embodiment of the utility model is shown. The first telescopic rod 300 and the second telescopic rod 400 both include a support rod 10, an adjustment rod 20 and a rotating head 30. One end of the support rod 10 is connected to the adjustment rod 20 based on a thread, and the other end of the support rod 10 is provided with a hinge head 11; the rotating head 30 includes a first rotating connection part 31 and a second rotating connection part 32, the first rotating connection part 31 and the second rotating connection part 32 are perpendicular to each other, and the first rotating connection part 31 is rotatably connected to one end of the adjustment rod 20 away from the support rod 10. The adjustment rod 20 can rotate without being restricted by the support rod 10 and the rotating head 30; the distance between the hinge head 11 and the adjustment rod 20 can be changed by rotating the adjustment rod 20 to achieve telescopic adjustment.
[0052] Specifically, a tightening screw hole 21 is opened at one end of the adjusting rod 20 close to the supporting rod 10. When the distance between the hinge joint 11 and the adjusting rod 20 is adjusted, a locking screw can be screwed into the tightening screw hole 21 to lock the adjusting rod 20 on the supporting rod 10 to avoid changes in the adjusted spacing.
[0053] Figure 5The schematic diagram of the connection structure of the electric push rod, the first telescopic rod and the second telescopic rod in the embodiment of the utility model is shown. The output end of the electric push rod 210 is rotatably provided with a connecting shaft 220, and the connecting shaft 220 is perpendicular to the bottom plate 100; the second rotating connection part 32 of the first telescopic rod 300 is rotatably connected to the connecting shaft 220, and the second rotating connection part 32 of the second telescopic rod 400 is rotatably connected to the connecting shaft 220; the hinge 11 of the first telescopic rod 300 is rotatably connected to the bottom plate 100, and the hinge 11 of the second telescopic rod 400 is rotatably connected to the sliding base 510. In this way, the first telescopic rod 300 and the second telescopic rod 400 can move flexibly without affecting the telescopic adjustment of the first telescopic rod 300 and the second telescopic rod 400.
[0054] In some specific embodiments, see Figure 5 , a limit member 40 is provided at one end of the first telescopic rod 300 connected to the electric push rod 210, and when the first telescopic rod 300 and the second telescopic rod 400 are in line, the limit member 40 and the second telescopic rod 400 are in contact; or
[0055] A limiting member 40 is disposed at one end of the second telescopic rod 400 connected to the electric push rod 210 . When the first telescopic rod 300 and the second telescopic rod 400 are collinear, the limiting member 40 contacts the first telescopic rod 300 .
[0056] The limiting member 40 is used to limit the colinear position of the first telescopic rod 300 and the second telescopic rod 400 to prevent the electric push rod 210 from exceeding the dead point position.
[0057] Figure 6 The schematic diagram of the connection structure of the electric push rod, the first telescopic rod and the bottom plate in the embodiment of the utility model is shown, the bottom plate 100 is provided with a bracket 110, one end of the first telescopic rod 300 is rotatably arranged on the bracket 110; the bottom plate 100 is also provided with a support column 120, the body of the electric push rod 210 is rotatably arranged on the support column 120. The first telescopic rod 300 and the electric push rod 210 are kept away from the bottom plate 100, so that they can move more flexibly and avoid scratching the bottom plate 100.
[0058] Furthermore, the base plate 100 is provided with a robot mounting portion, and the robot mounting portion is used to connect a robot arm, a machine platform, etc.
[0059] The method of using the elevator track calibration robot fixture of the utility model is as follows:
[0060] The elevator guide rail 1 is placed against the fixture reference block 600, and then the electric push rod 210 is started, and the output end of the electric push rod 210 is extended; under the constraint of the first telescopic rod 300, the electric push rod 210 drives the second telescopic rod 400 to unfold, and the second telescopic rod 400 pushes the sliding base 510 to move; the sliding base 510 drives the first clamp rod 520, the second clamp rod 530 and the two parallel connecting rods 540 to move toward the clamp reference block 600, and when the second clamp rod 530 contacts the elevator guide rail 1, the sliding base 510 drives the first clamp rod 520, the second clamp rod 530 and the two parallel connecting rods 540 to move toward the clamp reference block 600. The base 510 continues to slide, and the first clamp rod 520 continues to move closer to the elevator guide rail 1 toward the side of the second clamp rod 530 until the rubber pad 521 contacts the elevator guide rail 1 and presses it; finally, the first clamp rod 520 clamps the elevator guide rail 1 on the reference plane of the first reference part 610, and the second clamp rod 530 clamps the elevator guide rail 1 on the reference plane of the second reference part 620; in the clamped state, the pre-set first telescopic rod 300 and the second telescopic rod 400 will be colinear to form a dead point mechanism.
[0061] The position of the first telescopic rod 300 and the second telescopic rod 400 in a line is fixed, that is, the dead point position is a precise position, and the overall length of the first telescopic rod 300 and the second telescopic rod 400 in a line is adjustable; the overall length of the first telescopic rod 300 and the second telescopic rod 400 in a line determines the clamping force of the clamp assembly arm 500 on the elevator guide rail 1, so before using the elevator track calibration robot clamp, the clamping force needs to be pre-adjusted according to the specifications of the elevator guide rail 1, that is, the overall length of the first telescopic rod 300 and the second telescopic rod 400 in a line needs to be pre-adjusted. Specifically, when the first telescopic rod 300 and the second telescopic rod 400 are in a line, adjusting the length of the second telescopic rod 400 can adjust the clamping force of the first clamp rod 520 and the second clamp rod 530 on the elevator guide rail 1.
[0062] The elevator track calibration robot clamp of the utility model maintains the clamping state of the clamp by utilizing the dead point mechanism formed when the first telescopic rod 300 and the second telescopic rod 400 are collinear, and the dead point mechanism can make the reaction force of the elevator guide rail 1 on the clamp assembly arm 500 be borne entirely by the collinear first telescopic rod 300 and the second telescopic rod 400, and will not be transmitted to the electric push rod 210; in this way, during the calibration process of the elevator guide rail 1, the electric push rod 210 only needs to provide an initial clamping force, and there is no need to maintain the clamping state through the electric push rod 210, which can effectively reduce the load of the electric push rod 210 (i.e., the power source), thereby significantly improving the service life of the electric push rod 210 (i.e., the power source).
[0063] Moreover, the first clamp rod 520 and the second clamp rod 530 can clamp the elevator guide rail 1 on the clamp reference block 600 from two directions, so that the elevator guide rail 1 is clamped to a good degree, is firm and reliable, and has high precision; by changing the installation position of the first clamp rod 520, it can adapt to clamping elevator guide rails 1 of different specifications and models, and has good practicality.
[0064] In addition, in the prior art, when it is necessary to position and clamp an object from two directions, the general practice is to arrange a power source (motor) in each of the two clamping directions, and control the motors to push the target object to the reference position and then clamp it; however, during the clamping process, if one of the directions is clamped in advance, the other direction needs to overcome the previous clamping friction before it can push the target object closer to the reference position; in order to clamp the target object from two directions at the same time, a high-precision motor is required, and even a high-precision sensor is required, which has a high cost and can only achieve infinitely close simultaneous clamping.
[0065] The clamp assembly arm 500 of the elevator track calibration robot clamp of the utility model has a parallelogram structure, which can clamp or release the elevator guide rail 1 from two directions at the same time. That is, the utility model only needs one power source (i.e., the electric push rod 210) to achieve the clamping of the elevator guide rail 1 from two directions at the same time. There is no problem of clamping one direction first and then the other direction. No high-precision motors, sensors, etc. are required. The structure is light, easy to control, low energy consumption, and high reliability.
[0066] The above is a detailed introduction to an elevator track calibration robot fixture provided by an embodiment of the utility model. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of the utility model; at the same time, for general technical personnel in this field, according to the idea of the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.
Claims
1. An elevator track calibration robot fixture, characterized in that: It comprises a bottom plate, and a power telescopic assembly, a clamp assembly arm and a clamp reference block arranged on the bottom plate, wherein the clamp assembly arm is driven by the power telescopic assembly to clamp the elevator guide rail on the clamp reference block; The power telescopic assembly includes an electric push rod, a first telescopic rod and a second telescopic rod. The body of the electric push rod is rotatably set on the base plate, one end of the first telescopic rod is rotatably set on the base plate, the other end of the first telescopic rod is rotatably connected to the output end of the electric push rod, one end of the second telescopic rod is rotatably connected to the output end of the electric push rod, and the other end of the second telescopic rod is rotatably connected to the clamp assembly arm.
2. The elevator track calibration robot fixture according to claim 1, characterized in that: The clamp assembly arm comprises a sliding base, a first clamp rod, a second clamp rod and two parallel connecting rods, the sliding base is slidably arranged on the bottom plate, and the sliding base is rotatably connected to the second telescopic rod; One end of the two parallel connecting rods is rotatably connected to the sliding base, and the other end of the two parallel connecting rods is rotatably connected to the first clamp rod; the second clamp rod is rotatably connected to the two parallel connecting rods, and the second clamp rod is located between the first clamp rod and the sliding base; the first clamp rod and the second clamp rod are parallel to each other.
3. The elevator track calibration robot fixture as claimed in claim 2, characterized in that: The fixture reference block comprises a first reference portion and a second reference portion, the reference surface of the first reference portion and the reference surface of the second reference portion are perpendicular to each other, and the body of the first fixture rod is parallel to the reference surface of the first reference portion; In the clamped state, the first clamp rod clamps the elevator guide rail on the reference plane of the first reference part, and the second clamp rod clamps the elevator guide rail on the reference plane of the second reference part; one end of the second clamp rod points vertically to the reference plane of the second reference part, and one end of the second reference part points vertically to the side of the first clamp rod close to the second clamp rod.
4. The elevator track calibration robot fixture as claimed in claim 3, characterized in that: A rubber pad is arranged on the side of the first clamp rod close to the second clamp rod.
5. The elevator track calibration robot fixture as claimed in claim 2, characterized in that: The clamp assembly arm further comprises a return spring, one end of which is rotatably connected to any one of the two parallel connecting rods, and the other end of which is rotatably connected to the sliding base; In the clamped state, the return spring is in a stretched state.
6. The elevator track calibration robot fixture according to claim 5, characterized in that: A first push rod and a second push rod are inserted into the return spring. The return spring, the first push rod and the second push rod are coaxial. One end of the first push rod away from the second push rod is rotatably connected to any one of the two parallel connecting rods, and one end of the second push rod away from the first push rod is rotatably connected to the sliding base.
7. The elevator track calibration robot fixture as claimed in claim 2, characterized in that: The two parallel connecting rods are provided with a plurality of groups of adjustment holes along their length direction, and any group of the plurality of groups of adjustment holes is used for installing the first clamp rod.
8. The elevator track calibration robot fixture according to claim 1, characterized in that: The first telescopic rod and the second telescopic rod each include a support rod, an adjustment rod and a rotating head, one end of the support rod is connected to the adjustment rod based on a thread, and the other end of the support rod is provided with a hinge joint; The rotating head comprises a first rotating connection part and a second rotating connection part, the first rotating connection part and the second rotating connection part are perpendicular to each other, and the first rotating connection part is rotationally connected to an end of the adjusting rod away from the supporting rod.
9. The elevator track calibration robot fixture according to claim 8, characterized in that: The output end of the electric push rod is rotatably provided with a connecting shaft, and the connecting shaft is perpendicular to the bottom plate; The second rotational connection portion of the first telescopic rod is rotationally connected to the connection shaft, and the second rotational connection portion of the second telescopic rod is rotationally connected to the connection shaft.
10. The elevator track calibration robot fixture according to claim 1, characterized in that: A limiting member is provided at one end of the first telescopic rod connected to the electric push rod, and when the first telescopic rod and the second telescopic rod are in a collinear relationship, the limiting member contacts the second telescopic rod; or A limiting member is provided at one end of the second telescopic rod connected to the electric push rod, and when the first telescopic rod and the second telescopic rod are in a collinear relationship, the limiting member contacts the first telescopic rod.