CN116839454A - Rack splicing correction ruler and method - Google Patents
Rack splicing correction ruler and method Download PDFInfo
- Publication number
- CN116839454A CN116839454A CN202310701786.9A CN202310701786A CN116839454A CN 116839454 A CN116839454 A CN 116839454A CN 202310701786 A CN202310701786 A CN 202310701786A CN 116839454 A CN116839454 A CN 116839454A
- Authority
- CN
- China
- Prior art keywords
- rack
- ruler
- ruler body
- qualified
- connecting seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012937 correction Methods 0.000 title claims abstract description 17
- 238000005259 measurement Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 6
- 238000009966 trimming Methods 0.000 abstract description 2
- 239000011295 pitch Substances 0.000 description 18
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
- G01B5/16—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures between a succession of regularly spaced objects or regularly spaced apertures
- G01B5/166—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures between a succession of regularly spaced objects or regularly spaced apertures of gear teeth
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention discloses a rack splicing correction ruler and a method, which belong to the technical field of racks and comprise three parts, namely a caliper body, a connecting seat and a reference ball, wherein the caliper body is of an F shape and is welded or integrally formed by a first ruler body and a second ruler body, a third ruler body is in sliding connection with the second ruler body, the end parts of the second ruler body and the end parts of the third ruler body are respectively connected with the reference ball through the connecting seat, and the connecting seat and the reference ball are of a welded structure. The connecting seat is processed into a positioning groove which is matched with the reference ball to be directly sleeved, and the ruler body is provided with a graduated scale. The ruler is used for measuring the splicing correction time of two racks and mainly comprises a calliper body, a connecting seat and a reference ball. The method of measuring the tooth pitch by using a ruler and a gauge is used for ensuring the tooth trimming property of the rack. The invention has the advantages of simple structure, convenient adjustment, accuracy, low cost and strong universality.
Description
Technical Field
The invention belongs to the technical field of racks, and particularly relates to a rack splicing correction ruler and method.
Background
With the rapid development of flexible high-speed conveying of an automobile body-in-white welding line, a rack-and-pinion traveling conveying system is widely applied. The racks are quickly spliced and installed, and the precision of the spliced whole teeth is guaranteed to be more and more attractive for customers. The invention discloses a ruler for quickly splicing racks and correcting tooth space. And in the assembly process, the tooth pitch of the spliced racks is rapidly determined, so that a plurality of racks are spliced into one full tooth to the greatest extent, and the precision requirement of gear-rack transmission is met.
At present, two splicing and installing methods are available:
first, a reference hole positioning mounting method is employed (fig. 1). Respectively processing two reference holes on the two spliced racks, processing corresponding positioning holes on the BASE mounting plate, and using positioning pins to pass through the reference holes and the positioning holes so as to finish positioning and mounting of the racks; however, the method has higher requirements on the precision of the rack reference hole and the BASE positioning hole, and greatly increases the processing cost. And because each rack has two positioning holes and BASE nest seat elevation simultaneously, the positioning device belongs to over positioning. Sometimes the over-positioning may cause the work piece to be improperly installed.
Second, an installation method of "reverse ruler" positioning is employed (fig. 2). Firstly, the two racks are spliced through a reverse ruler, then the two racks are mutually abutted against the vertical face C of the BASE nest seat, and then the screw is screwed. And then the BASE positioning hole is guided to be punched through a reference hole on the rack. However, this method requires the simultaneous production of a "reverse ruler" corresponding to the modulus of the rack (the modulus determines the specification of the rack). That is, the specification and the size of the rack are different according to the project requirements. The use of the "reverse ruler" is almost disposable. The manufacturing cost and the period are increased, and the reverse ruler is huge, heavy and clumsy, so that the reverse ruler is supported by hands during use, is unsafe and inflexible, and sometimes is difficult to meet the assembly requirement of rack splicing.
Disclosure of Invention
The invention provides a rack splicing correction ruler and a method, which comprise three parts, namely a caliper body, a connecting seat and a reference ball, wherein the caliper body is of an F shape and is welded or integrally formed by a first ruler body and a second ruler body, a third ruler body is in sliding connection with the first ruler body, the end parts of the second ruler body and the third ruler body are respectively connected with the reference ball through the connecting seat, and the connecting seat and the reference ball are of a welded structure. The connecting seat is processed into a positioning groove which is matched with the reference ball to be directly sleeved, and the ruler body is provided with a graduated scale. The ruler is used for measuring the splicing correction time of two racks and mainly comprises a calliper body, a connecting seat and a reference ball. The method of measuring the tooth pitch by using a ruler and a gauge is used for ensuring the tooth trimming property of the rack. The invention has the advantages of simple structure, convenient adjustment, accuracy, low cost and strong universality.
The technical scheme of the invention is as follows, a rack splicing correction ruler, comprising: the caliper comprises a caliper body, a connecting seat and a reference ball, wherein the caliper body is of an F shape and consists of a first ruler body, a second ruler body and a third ruler body, the first ruler body and the second ruler body are welded or integrally formed, the third ruler body is in sliding connection with the first ruler body, the end parts of the second ruler body and the third ruler body are respectively connected with the reference ball through the connecting seat, and the connecting seat is welded with the reference ball.
Further, the ruler body is provided with a graduated scale.
A rack splicing correction method comprises the following steps:
s1, a first rack and a BASE nest elevation are abutted against each other, the first rack is fixed on a BASE mounting plate through bolts, a reference ball on the ruler is clamped into the rack, and N tooth pitch lengths L are measured 1 Recording a measurement result;
s2, combining the second rack with the BASE nest elevation and the first rulerThe strips are mutually abutted, two reference balls on the ruler of the invention are respectively clamped into a first rack and a second rack, and N tooth pitch lengths L are measured 2 Recording a measurement result;
s3 comparison L 2 And L is equal to 1 If the difference is qualified, the screw is locked, the step S4 is continued, if the difference is not qualified, the second rack is guaranteed to abut against the vertical surface of the BASE nest seat, and meanwhile the second rack is adjusted left and right until the second rack is qualified;
s4, respectively clamping two reference balls on the ruler of the invention into different positions of the first rack and the second rack in the step S3, and measuring N tooth pitch lengths L 3 Recording a measurement result;
s5 comparison L 3 And L is equal to 1 And if the difference is qualified, processing a positioning hole on the BASE mounting plate through a reference hole on the rack, then mounting a positioning pin, and if the difference is not qualified, repeating the steps S3-S5.
Further, the reference sphere diameter is equal to half the pitch.
Further, in step S3, L 2 -L 1 The difference value is within +/-0.02 mm and is qualified.
Further, in step S5, L 3 -L 1 The difference value is within +/-0.02 mm and is qualified.
The beneficial effects of the invention are as follows: the invention has the advantages of simple structure, convenient adjustment, accuracy, low cost and strong universality.
Drawings
Fig. 1 is a schematic diagram of a method for installing a reference hole positioning spliced rack.
Fig. 2 is a schematic diagram of a reverse ruler positioning splicing rack installation method.
FIG. 3 is a schematic view of the method of installing the ruler of the present invention.
Fig. 4 is a schematic view of the ruler of the present invention.
Fig. 5 is a schematic diagram of the operation of the present invention.
In the figure:
1-a first reference hole; 2-a second reference hole; 3-a third reference hole; 4-a fourth reference hole; 5-reversing ruler; 6-the tooth gauge of the invention; 601-a first blade; 602-a second blade; 603-a third blade; 604-a connection socket; 605-a reference ball; a 7-BASE mounting plate; 8-bolt holes; a-a first rack; b-a second rack; C-BASE nest elevation; L-N tooth pitch lengths; n-number of teeth; p-pitch; q1-a first reference ball group; q2-second reference ball group.
Detailed Description
It should be noted that, in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operate in a specific orientation.
In the present invention, unless specifically stated and limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and for example, "fixed" may be a fixed connection, a removable connection, or an integral body; the connection may be mechanical connection or electrical connection; the connection may be direct connection or indirect connection via an intermediate medium, and may be internal connection of two elements or interaction relationship of two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Mainly comprises a caliper body, a connecting seat and a reference ball.
The caliper body is F-shaped, and is formed by welding or integrally forming a first caliper body and a second caliper body, a third caliper body is in sliding connection with the second caliper body, and the end parts of the second caliper body and the third caliper body are respectively connected with the reference ball through connecting seats.
The connecting seat and the reference ball are of a welding structure. The connecting seat is processed into a positioning groove which is matched with the reference ball to be directly sleeved.
The ruler body is provided with a graduated scale.
Working principle:
the reference ball is tangent with the tooth profiles at the two sides of the rack at the same time, and the ball center position is always kept at the center position of the two teeth no matter where the tangent point is.
The two ball center distances l=n×p, L is N tooth pitch lengths, N is the number of teeth, and P is the tooth pitch, i.e. the sum of the N tooth numbers and the tooth pitches, see fig. 5, and reference balls with different sizes of Q1 and Q2.
The working mode is shown in fig. 3:
installing a first rack: the first rack and the BASE nest elevation are abutted against each other, and then the screw is tightened. Meanwhile, a reference ball group with proper diameter is selected according to the tooth pitch, the diameter of the reference ball group is approximately equal to half of the tooth pitch, and N tooth pitch lengths L are measured by using a splicing correction ruler 1 The measurement results were recorded.
And (3) mounting a second rack: the second rack is abutted against the vertical surface of the BASE nest seat, and then N tooth pitch lengths L are measured by a splicing correction ruler and a splicing correction ruler which are spanned on the first rack and the second rack 2 The measurement results were recorded. Adopts a relative measurement method to ensure that the tooth pitch after splicing is qualified (L 1 -L 2 The difference is within +/-0.02 mm), and then locking the rack screw;
verifying the splicing tooth pitch: straddling the first rack and the second rack, correcting the ruler and the gauge again by splicing, and measuring the lengths L of N tooth pitches after splicing 3 The measurement results were recorded. Then ensure that the difference between this magnitude and the first measured magnitude meets the requirement (L 1 -L 3 The difference is + -0.02 mm), otherwise the second rack is reinstalled. And guiding and processing the BASE positioning hole through a reference hole on the rack, and installing a positioning pin until the rack is spliced. If there is a third rack, a fourth rack … …, and so on.
Only the bolt hole on the BASE mounting plate can be matched with the bolt hole 8 on the rack, the tolerance is large, the positioning hole is punched through the reference hole on the rack, and the precision requirement is quite high.
The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the invention is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present invention will be apparent to those skilled in the art within the scope of the present invention. And all that is not described in detail in this specification is well known to those skilled in the art.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (6)
1. The utility model provides a ruler is corrected in rack concatenation which characterized in that includes: the caliper comprises a caliper body, a connecting seat and a reference ball, wherein the caliper body is of an F shape and consists of a first ruler body, a second ruler body and a third ruler body, the first ruler body and the second ruler body are welded or integrally formed, the third ruler body is in sliding connection with the first ruler body, the end parts of the second ruler body and the third ruler body are respectively connected with the reference ball through the connecting seat, and the connecting seat is welded with the reference ball.
2. A rack bar spliced correction ruler as claimed in claim 1 wherein the ruler body has graduations thereon.
3. The rack splicing correction method is characterized by comprising the following steps of:
s1, abutting a first rack and a BASE nest elevation mutually, fixing the first rack on a BASE mounting plate through bolts, clamping a reference ball on the ruler according to claim 1 or 2 into the rack, and measuring N tooth pitch lengths L 1 Recording a measurement result;
s2, a second rack, a BASE nest elevation surface and a first ruler strip are mutually abutted, two reference balls on the ruler are respectively clamped into the first rack and the second rack, and N tooth pitch lengths L are measured 2 Recording a measurement result;
s3 comparison L 2 And L is equal to 1 If the difference is qualified, the screw is locked, the step S4 is continued, if the difference is not qualified, the second rack is guaranteed to abut against the vertical surface of the BASE nest seat, and meanwhile the second rack is adjusted left and right until the second rack is qualified;
s4, respectively clamping two reference balls on the ruler into different positions of the first rack and the second rack in the step S3, and measuring N tooth pitch lengths L 3 Recording a measurement result;
s5 comparison L 3 And L is equal to 1 And if the difference is qualified, processing a positioning hole on the BASE mounting plate through a reference hole on the rack, then mounting a positioning pin, and if the difference is not qualified, repeating the steps S3-S5.
4. A method of rack bar stitching correction as claimed in claim 3 wherein the reference ball diameter is less than or equal to half the pitch.
5. A method of rack bar stitching correction as claimed in claim 3 wherein in step S3, L 2 -L 1 The difference value is within +/-0.02 mm and is qualified.
6. A method of rack bar stitching correction as claimed in claim 3 wherein in step S5, L 3 -L 1 The difference value is within +/-0.02 mm and is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310701786.9A CN116839454A (en) | 2023-06-14 | 2023-06-14 | Rack splicing correction ruler and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310701786.9A CN116839454A (en) | 2023-06-14 | 2023-06-14 | Rack splicing correction ruler and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116839454A true CN116839454A (en) | 2023-10-03 |
Family
ID=88171645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310701786.9A Pending CN116839454A (en) | 2023-06-14 | 2023-06-14 | Rack splicing correction ruler and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116839454A (en) |
-
2023
- 2023-06-14 CN CN202310701786.9A patent/CN116839454A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111207656A (en) | Rapid metering device and metering method for tooth profile of cycloidal gear of RV reducer | |
| CN209820369U (en) | Gear M value measurement gauge | |
| CN116839454A (en) | Rack splicing correction ruler and method | |
| CN111089530B (en) | Measuring device and measuring method for return clearance of planetary gear motor | |
| CN202329516U (en) | Clamp for testing error of symmetry degree of spline or gear type part | |
| CN210108208U (en) | Axle type product length measurement device | |
| CN101169976A (en) | High precision regulation tool equipment and its regulation method | |
| CN216694799U (en) | Tool for detecting deformation of workpiece | |
| CN113814757B (en) | Processing method | |
| CN211824165U (en) | Length measuring tool on conical surface nominal circle | |
| CN109357582B (en) | Blade equivalent measuring tool and blade equivalent measuring method | |
| KR20140039945A (en) | Combination block gauge measurement apparatus | |
| CN211346629U (en) | Measuring tool for center height of coupler of bullet train | |
| CN218002408U (en) | Calibrating device for internal diameter dial indicator | |
| CN211042047U (en) | Detection apparatus capable of adjusting stud spacing | |
| US20170328813A1 (en) | Vehicle Suspension System Bracket Pocket Dimensional Verifier Tools and Methods Of Use | |
| CN212482312U (en) | Comprehensive detection tool for detecting form and position tolerance of automobile sheet metal part | |
| CN113720231A (en) | Detection process for automobile instrument board beam component assembly | |
| CN2881534Y (en) | Measuring instrument for space angle | |
| CN215064447U (en) | Twin gear tooth's socket centering gauge head device | |
| CN213657683U (en) | Detection die for automobile instrument board beam component assembly | |
| CN215984336U (en) | Measuring tool for measuring span length of internal spline | |
| CN210570373U (en) | Height gage auxiliary measuring tool | |
| CN218329729U (en) | Parallelism detection device | |
| CN108621054B (en) | Correction device and correction method for nut seat of vertical machining center |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |