Rapid lineation positioning device for bench worker

Abstract

The utility model provides a quick lineation positioning device for bench workers. The quick lineation positioning device comprises two side beams, at least one cross beam, a guide mechanism and a lineation ejector pin, the two ends of the cross beam are hinged to the two side beams respectively, a plurality of equally-divided wire holes are formed in the cross beam in the length direction, and the scribing ejector pin is detachably installed in any equally-divided wire hole. The guide mechanism comprises two sets of guide wheels installed on the two side beams, and the guide wheels are used for abutting against the two side faces of the machined profile from the two sides so that the two side beams can move in the length direction of the machined profile in parallel. The fast lineation positioning device for the bench worker has the advantages that lineation efficiency is improved, tools are simple and easy to use, and precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator manufacturing, in particular to a device for fast marking and positioning of fitters. Background Art

[0002] Elevator systems contain numerous components that perform fixing and supporting functions. These components are typically manufactured by cutting from standard profiles, drilling and tapping them, and then assembling them into the elevator system with bolts. Examples include the car beam, the traction machine base, and the guide rail support frame. These components typically perform fixing and supporting functions, and require less precise drilling and positioning.

[0003] Although the precision requirements for these parts are not high, the demand is large in quantity and the specifications are diverse. If the holes are positioned by CNC machine tools, high-precision production can be achieved, but the efficiency is too low and does not match the product positioning; if the traditional caliper marking is used for positioning, although the operation is simple, the accuracy is easily lower than the required accuracy and the efficiency is also low.

[0004] The current practice is to use a vernier caliper for manual measurement, first draw a sample line that divides the machined surface into two, three or four equal parts through calculation, and then measure on the sample line with a vernier caliper to locate the final hole position. The main disadvantage is that there are errors in manual measurement of the bisection, trisection or quartering lines, and multiple measurements are required for locating multiple holes, which is inefficient.

[0005] Based on the current situation, the best solution is to improve the convenience, accuracy and efficiency of the marking tool. To meet this requirement, those skilled in the art need to design a new tool. Utility Model Content

[0006] The purpose of the utility model is to address the deficiencies of the existing technology and thus provide a fast marking and positioning device for fitters, which improves marking efficiency, is simple and easy to use, and has guaranteed accuracy.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a device for fast marking and positioning of fitters, comprising two side beams, at least one cross beam, a guide mechanism and a marking ejector;

[0008] The two ends of the crossbeam are respectively hinged on the two side beams. A plurality of equally divided wire holes are provided on the crossbeam along the length direction. The marking ejector pin can be detachably installed in any of the equally divided wire holes.

[0009] The guide mechanism includes two sets of guide wheels installed on two side beams. The guide wheels are used to abut against the two side surfaces of the processed profile from both sides, so that the two side beams move parallel to each other along the length direction of the processed profile.

[0010] Preferably, there are at least two cross beams, the cross beams are parallel to each other, and the cross beams and side beams form a parallelogram structure as a whole.

[0011] Preferably, a positioning bolt is threadedly fixedly connected to the side beam, and the hole-axis between the cross beam and the positioning bolt is matched, so that the cross beam can rotate around the positioning bolt.

[0012] Preferably, the guide wheel is a bearing, an assembly hole is provided on the side beam, a pin is installed in the assembly hole, the bearing is installed at the lower part of the pin, and the number of guide wheels on a single side beam is at least two.

[0013] Preferably, a pressing plate is provided on the inner side of the side beam, and the pressing plate is used to fit the upper surface of the processed profile.

[0014] Preferably, an elastic retaining ring is installed at the bottom end of the bearing.

[0015] Preferably, the marking ejector pin comprises an integrally formed butterfly handle, a screw rod and a needle head.

[0016] Preferably, the plurality of wire holes include wire holes divided into two equal parts, wire holes divided into three equal parts, and wire holes divided into four equal parts based on the length of the beam.

[0017] Preferably, the clearance between the crossbeam and the positioning bolt for hole-shaft matching is 0.02-0.04 mm.

[0018] Preferably, the clearance grade of the bearing is at least C2, the material of the marking ejector pin is 40Cr, and the hardness after heat treatment reaches HRC48-55.

[0019] The present invention has substantial features and progress over the prior art. Specifically, the present invention utilizes the parallelogram principle to set side beams and cross beams, and sets equally divided wire holes on the cross beams. Under this structure, high-precision positioning of the equally divided wire holes can be achieved as long as the width of the profile to be processed is within the effective width range of the beams on both sides. Then, with the assistance of the guide mechanism and the marking ejector, high-precision marking of the profile to be processed can be achieved, and the efficiency is high, the dependence on human operation is reduced, and it is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a top view of a fast marking and positioning device for fitters.

[0021] Figure 2 It is a stereoscopic diagram of a fast marking and positioning device for fitters in the utility model.

[0022] Figure 3 The utility model is a side view of a fast marking and positioning device for fitters.

[0023] In the figure: 1. Side beam; 2. Cross beam; 3. Marking pin; 4. Thread hole; 5. Bearing; 6. Pin; 7. Processed profile; 8. Press plate; 41. Thread hole divided into two equal parts; 42. Thread hole divided into three equal parts; 43. Thread hole divided into four equal parts. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model is further described in detail below through specific implementation methods.

[0025] like Figure 1-Figure 3 As shown, a device for fast marking and positioning by fitters includes two side beams 1, three cross beams 2, a guide mechanism and a marking ejector pin 3.

[0026] The ends of the crossbeam 2 are hinged to the two side beams 1, respectively. Several equally divided wire holes 4 are provided along the length of the crossbeam 2. The marking thimble 3 can be detachably installed in any of the equally divided wire holes 4. The marking thimble 3 comprises an integrally formed butterfly handle, a screw rod, and a needle. The material of the marking thimble is 40Cr, and the heat treatment hardness reaches HRC48-55. The thread design of the equally divided wire hole and the marking thimble 3 is a fine-pitch thread, which prevents the thimble from loosening easily. The number of marking thimbles 3 can be determined according to demand. If only one equally divided line is required, one marking thimble 3 is installed. If two equally divided lines are required, two marking thimbles 3 are installed, and so on.

[0027] In this embodiment, the plurality of wire holes 4 include a wire hole 41 divided into two equal parts, a wire hole 42 divided into three equal parts, and a wire hole 43 divided into four equal parts based on the length of the beam.

[0028] The side beam 1 is fixedly connected with a positioning bolt 9 through a thread. After installation, the thread loosening glue is applied to prevent the bolt from loosening and falling off during use. The hole-axis between the crossbeam 2 and the positioning bolt 9 is matched, and the gap between the hole-axis match is 0.02-0.04mm, so that the crossbeam 2 can rotate around the positioning bolt 9. An appropriate amount of butter is applied to the matching surface of the positioning bolt and the crossbeam to reduce the friction of the hinge connection.

[0029] The number of cross beams 2 is not limited in other embodiments. When the number of cross beams 2 is ≥ two, they can cooperate with the side beams 1 to form a parallelogram structure, so that the two side beams are always relatively parallel and have higher stability. When there is only one cross beam 2, it can also meet the use requirements, but it is required that the two side beams 1 need to control the guide mechanism to always be close to the two sides of the processed profile when in use.

[0030] The guide mechanism includes two sets of guide wheels installed on two side beams 1. The number of guide wheels on a single side beam is at least two. Specifically, the guide wheel is a bearing 5 in this embodiment. An assembly hole is provided on the side beam 1. A pin 6 is installed in the assembly hole. The bearing 5 is installed at the lower part of the pin 6. To meet the precision requirements, the clearance grade of the bearing is at least C2. Deep groove ball bearings can be selected, which have better rolling effect. To protect the bearing and make it more durable, an elastic retaining ring can be installed at the bottom of the bearing.

[0031] The guide wheels are used to abut against the two side surfaces of the processed profile 7 from both sides, so that the beams 1 on both sides move parallel to each other along the length direction of the processed profile 7.

[0032] In order to ensure a more stable walking process, a pressing plate 8 is provided on the inner side of the side beam 1 , and the pressing plate 8 is used to fit the upper surface of the processed profile 7 to maintain the walking accuracy of the device.

[0033] How to use;

[0034] (1) Place the device flat on the surface of the processed profile 7, such as a channel steel, with the two side beams 1 separated outwards and the distance between the side beams 1 increased so that the channel steel can be embedded;

[0035] (2) Then, move the two side beams 1 inwards so that the two sides of the channel steel are close to the outer circle of the bearing 5 on the side beam 1;

[0036] (3) Screw the marking thimble 3 into the thread hole 4 in the beam 2, and the tip of the marking thimble 3 presses against the surface of the channel steel;

[0037] (4) Hold the beams 1 on both sides tightly together and apply slight downward pressure. Slide the device along the length of the channel steel, and the ejector pin draws a bisecting line on the surface of the channel steel.

[0038] Finally, it should be noted that: The above describes in detail the preferred embodiments of this patent, but this patent is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A device for fast marking and positioning by fitters, characterized by: The invention comprises two side beams, at least one cross beam, a guide mechanism and a marking ejector; the ends of the cross beam are respectively hinged on the two side beams, and the cross beam is provided with a plurality of equally divided wire holes along the length direction, and the marking ejector can be detachably installed in any of the equally divided wire holes; The guide mechanism includes two sets of guide wheels installed on two side beams. The guide wheels are used to abut against the two side surfaces of the processed profile from both sides, so that the two side beams move parallel to each other along the length direction of the processed profile.

2. The fast marking and positioning device for fitters according to claim 1, characterized in that: There are at least two cross beams, each cross beam is parallel to each other, and the cross beams and side beams form a parallelogram structure as a whole.

3. The fast marking and positioning device for fitters according to claim 2, characterized in that: A positioning bolt is fixedly connected with a thread on the side beam, and the hole and axis between the cross beam and the positioning bolt are matched, so that the cross beam can rotate around the positioning bolt.

4. The fast marking and positioning device for fitters according to claim 2 or 3, characterized in that: The guide wheel is a bearing, an assembly hole is provided on the side beam, a pin is installed in the assembly hole, the bearing is installed at the lower part of the pin, and the number of guide wheels on a single side beam is at least two.

5. The fast marking and positioning device for fitters according to claim 4, characterized in that: A pressing plate is provided on the inner side of the side beam, and the pressing plate is used to fit the upper surface of the processed profile.

6. The fast marking and positioning device for fitters according to claim 4, characterized in that: An elastic retaining ring is installed at the bottom end of the bearing.

7. The fast marking and positioning device for fitters according to claim 2, 3, 5 or 6, characterized in that: The marking ejector pin comprises an integrally formed butterfly handle, a screw rod and a needle head.

8. The fast marking and positioning device for fitters according to claim 2, 3, 5 or 6, characterized in that: The plurality of wire holes include wire holes divided into two equal parts, wire holes divided into three equal parts and wire holes divided into four equal parts based on the length of the crossbeam.

9. The fast marking and positioning device for fitters according to claim 3, characterized in that: The clearance between the crossbeam and the positioning bolt in terms of hole-shaft matching is 0.02-0.04 mm.

10. The fast marking and positioning device for fitters according to claim 5 or 6, characterized in that: The clearance grade of the bearing is at least C2, the material of the marking ejector pin is 40Cr, and the heat treatment hardness reaches HRC48-55.

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