Calibrating device for scissor fork component

Abstract

The invention relates to the technical field of forklift part production equipment, in particular to a calibration device for a scissor fork part. A calibration device for a scissor fork part comprises a calibration platform and a flatness test assembly, and the flatness test assembly performs flatness test on the outer side face of a cross rod in a scissor fork; the calibration platform is connected with an upper positioning block group; the calibration platform is connected with a lower positioning block group; the upper positioning block group and the lower positioning block group are used for positioning the scissor fork part; the calibration platform is connected with a calibration assembly, and the calibration assembly conducts external pressure calibration on the flatness of the side face of the cross rod in the scissor fork. According to the calibration device for the scissor fork component, the scissor fork component can be quickly and accurately calibrated, and the overall production efficiency and quality of the scissor fork are improved.

Description

Technical Field

[0001] The present application relates to the technical field of forklift parts production equipment, and in particular to a calibration device for a scissor fork component. Background Art

[0002] Scissor forks are an important part of forklifts, used for loading and unloading and short-distance transportation of goods. Several scissor forks constitute the retractable arm at the front of the forklift, which can be opened and closed like scissors. The retractable arm at the front of the forklift can adapt to goods of different sizes and shapes, and complete the loading and unloading and short-distance transportation of goods of different sizes and shapes. Therefore, the design of scissor forks enables forklifts to flexibly operate goods of different sizes and shapes, adapt to different work scenarios and cargo requirements, and improve the working efficiency and operational flexibility of forklifts. Forklift scissor forks are one of the indispensable equipment in modern logistics and warehousing industries.

[0003] The scissors fork component includes two horizontal bars, each of which has three through holes. A vertical bar is welded between the two horizontal bars. The vertical bar and the through holes of the horizontal bar are welded together to form the scissors fork component. The welding production process will affect the flatness of the surface of the horizontal bar, so the flatness of the horizontal bar of the scissors fork needs to be calibrated.

[0004] The existing calibration device for scissor fork components uses a hydraulic press for calibration, and the hydraulic rod of the hydraulic press is fixedly connected to a rectangular calibration block. The flatness of the surface of the crossbar of the scissor fork component needs to be measured with a calibration ruler. After the calibration ruler measures the uneven area of ​​the scissor fork and marks it, it is hoisted to the hydraulic press and the calibration block is used to flatten and calibrate the uneven area marked by the scissor fork. It can be seen that the calibration device for scissor fork components in the above-mentioned prior art has technical problems such as high labor intensity of operators and low calibration efficiency. To this end, the application provides a calibration device for scissor fork components. Summary of the invention

[0005] In order to solve the problem in the prior art that the calibration of scissor fork components is labor-intensive and inefficient, the present application provides a calibration device for scissor fork components, which can quickly and accurately calibrate the scissor fork components.

[0006] The present application provides a calibration device for a scissor fork component, which is implemented by the following scheme: A calibration device for a scissor fork component comprises a calibration platform and a flatness testing assembly, wherein the flatness testing assembly performs a flatness test on the outer side surface of a cross bar in the scissor fork; the calibration platform is connected to an upper positioning block group; the calibration platform is connected to a lower positioning block group; the upper positioning block group and the lower positioning block group are used to position the scissor fork component; the calibration platform is connected to a calibration assembly, wherein the calibration assembly performs external pressure calibration on the flatness of the side surface of the cross bar in the scissor fork.

[0007] The scissors fork component calibration device provided in the present application can quickly and accurately calibrate the scissors fork components, thereby improving the overall production efficiency and quality of the scissors fork.

[0008] Preferably, the upper positioning block group includes an upper positioning block A and an upper positioning block B, the upper positioning block A abuts against the inner side of one cross bar of the scissors fork, and the upper positioning block B abuts against the inner side of the other cross bar of the scissors fork; the cross-sections of the upper positioning block A and the upper positioning block B are both L-shaped; the upper positioning block A and the upper positioning block B are detachably connected to the calibration platform.

[0009] Preferably, the lower positioning block group includes a lower positioning block A and a lower positioning block B, the lower positioning block A abuts against the inner side of one cross bar of the scissors fork, and the lower positioning block B abuts against the inner side of the other cross bar of the scissors fork; the cross-sections of the lower positioning block A and the lower positioning block B are both L-shaped; the lower positioning block A and the lower positioning block B are detachably connected to the calibration platform.

[0010] By adopting the above technical solution, the scissors fork can be quickly positioned to improve the overall calibration efficiency.

[0011] Preferably, the flatness testing component is an L-shaped steel ruler.

[0012] The L-shaped steel ruler in the present invention has a simple structure and low overall equipment cost, but requires manual handling and measurement.

[0013] Preferably, the flatness testing component is a laser potentiometer, and the number of the laser potentiometers is four; the laser potentiometer is slidably connected to the calibration platform, and the sliding direction of the laser potentiometer is the width direction of the calibration platform; one of the laser potentiometers is used to test the flatness of the outer side surface of one cross bar in the scissors fork, and the other laser potentiometer is used to test the flatness of the outer side surface of the other cross bar in the scissors fork.

[0014] Preferably, the calibration platform is provided with a sliding groove along its length direction; the sliding groove of the calibration platform is slidably and fixedly connected with an L-shaped flatness test piece; the L-shaped flatness test piece is respectively arranged on the outer side surface and the inner side surface of the scissors fork cross bar positioned between the upper positioning block group and the lower positioning block group, to test the flatness of the outer side surface and the inner side surface of the scissors fork cross bar; the L-shaped flatness test piece is provided with a marking pen, and the marking pen marks the unevenness of the outer side surface and the inner side surface of the scissors fork cross bar.

[0015] The combination of the L-shaped flatness test piece and the laser potentiometer enables efficient and rapid flatness testing of the outer and inner sides of the crossbar, and rapid positioning and marking of uneven areas on the outer and inner sides of the crossbar, which helps improve the overall calibration efficiency and ensure the quality of the scissors fork.

[0016] Preferably, the calibration component comprises an external telescopic hydraulic cylinder group, which consists of two external telescopic hydraulic cylinders, which are respectively arranged on both sides of the length direction of the calibration platform; the external telescopic hydraulic cylinder group calibrates the flatness of the outer side surface of the cross bar of the scissors fork.

[0017] Preferably, a sliding bar A is fixedly connected to the bottom of the external telescopic hydraulic cylinder in the external telescopic hydraulic cylinder group; the calibration platform is provided with a sliding groove A along its own length direction; the sliding bar A at the bottom of the external telescopic hydraulic cylinder slides and is fixedly connected to the sliding groove A of the calibration platform; the external telescopic hydraulic cylinder can move along the calibration platform along its own length direction.

[0018] Preferably, the calibration component also includes an inner telescopic hydraulic cylinder group, which includes two inner telescopic hydraulic cylinders. The two inner telescopic hydraulic cylinders are respectively slidably and fixedly connected to the calibration platform. The inner telescopic hydraulic cylinder group calibrates the flatness of the inner side surface of the cross bar in the scissors fork.

[0019] Preferably, the inner telescopic hydraulic cylinder group is located between the upper positioning block group and the lower positioning block group; the calibration platform is provided with a slide groove B along its own length direction, and the slide groove B is located between the upper positioning block group and the lower positioning block group; a sliding bar B is fixedly connected to the bottom of the inner telescopic hydraulic cylinder; the sliding bar B at the bottom of the inner telescopic hydraulic cylinder slides and is fixedly connected to the slide groove B of the calibration platform; the inner telescopic hydraulic cylinder can move along the calibration platform along its own length direction In the present invention, the outer telescopic hydraulic cylinder group and the inner telescopic hydraulic cylinder group that are slidably connected to the calibration platform can quickly perform hydraulic calibration flatness on the uneven marked parts on the outer side surface and the inner side surface of the cross bar, and then re-measure the surface flatness of the uneven marked parts through an L-shaped flatness test piece and a laser potentiometer combination. If the surface flatness of the uneven marked parts meets the standard, the next scissors fork calibration is performed; if the surface flatness of the uneven marked parts does not meet the standard, the outer telescopic hydraulic cylinder group and the inner telescopic hydraulic cylinder group perform surface hydraulic calibration processing on the uneven marked parts on the outer side surface and the inner side surface of the cross bar again until the surface flatness of the uneven marked parts meets the standard.

[0020] In summary, this application has the following advantages: 1. The scissors fork component calibration device provided by the present invention can quickly and accurately calibrate the scissors fork components, thereby improving the overall production efficiency and quality of the scissors fork and facilitating quality control of the scissors fork components.

[0021] 2. The present invention adopts an L-shaped flatness test piece and a laser potentiometer combination to realize efficient and rapid flatness testing of the outer and inner sides of the crossbar, and can quickly locate and mark the uneven parts of the outer and inner sides of the crossbar, which is beneficial to improving the overall calibration efficiency and ensuring the quality of the scissors fork.

[0022] 3. The present invention adopts an external telescopic hydraulic cylinder group and an internal telescopic hydraulic cylinder group to quickly hydraulically calibrate the flatness of the uneven markings on the outer and inner sides of the crossbar, thereby improving the overall calibration efficiency, ensuring the quality of the scissors fork, and facilitating quality control of the scissors fork components. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the calibration device for the scissors fork component in Example 1 of the present application.

[0024] Figure 2 It is a schematic diagram of the structure of the calibration component in Example 1 of the present application.

[0025] Figure 3 It is a schematic diagram of the overall structure of the calibration device for the scissors fork component in Example 2 of the present application.

[0026] Figure 4 It is a schematic diagram of the plane calibration of the calibration device for the scissors fork component in Example 2 of the present application.

[0027] Figure 5 It is a structural schematic diagram of the L-shaped flatness test piece and the calibration platform in Example 2 of the present application.

[0028] In the figure, 1. calibration platform; 10. flatness test assembly; 100. sliding groove; 101. laser generator; 11. sliding groove A; 12. sliding groove B; 13. sliding groove C; 2. upper positioning block group; 21. upper positioning block A; 22. upper positioning block B; 3. lower positioning block group; 31. lower positioning block A; 32. lower positioning block B; 4. calibration assembly; 41. external telescopic hydraulic cylinder group; 411. sliding bar A; 42. internal telescopic hydraulic cylinder group; 421. sliding bar B; 5. L-shaped flatness test piece; 51. L-shaped flatness test piece; 511. marking hole; 52. inverted T-shaped sliding bar B; 521. marking pen. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. Example

[0030] Example 1, reference Figure 1 A calibration device for a scissor fork component includes a calibration platform 1 and a flatness test assembly 10. The flatness test assembly 10 performs a flatness test on the outer side surface of the crossbar in the scissor fork. The calibration platform 1 is connected to a calibration assembly 4. The calibration assembly 4 performs an external pressure calibration on the flatness of the side surface of the crossbar in the scissor fork. The calibration platform 1 is detachably and fixedly connected with an upper positioning block group 2. The calibration platform 1 is detachably and fixedly connected with a lower positioning block group 3. The upper positioning block group 2 and the lower positioning block group 3 are used to position the scissor fork component, so that the flatness test assembly 10 can perform a flatness test and the calibration assembly 4 can perform a plane external pressure calibration.

[0031] Reference Figure 1 The upper positioning block group 2 includes an upper positioning block A21 with an L-shaped cross section and an upper positioning block B22 with an L-shaped cross section. The upper positioning block A21 and the upper positioning block B22 are both bolted to the calibration platform 1. The outer side surface of the upper positioning block A21 abuts against the inner side surface of one cross bar of the scissors fork, and the outer side surface of the upper positioning block B22 abuts against the inner side surface of the other cross bar of the scissors fork, that is, the straight-line distance from the outer side surface of the upper positioning block A21 to the outer side surface of the upper positioning block B22 is equal to the straight-line distance between the inner sides of the two cross bars of the scissors fork.

[0032] Reference Figure 1 The lower positioning block group 3 includes a lower positioning block A31 with an L-shaped cross section and a lower positioning block B32 with an L-shaped cross section. The lower positioning block A31 and the lower positioning block B32 are fixedly connected to the calibration platform 1 by bolts. The outer side surface of the lower positioning block A31 and the upper positioning block A21 are in the same vertical plane. The outer side surface of the L-shaped lower positioning block B32 and the upper positioning block B22 are in the same vertical plane. The outer side surface of the lower positioning block A31 abuts against the inner side surface of one cross bar of the scissors fork, and the outer side surface of the lower positioning block B32 abuts against the inner side surface of the other cross bar of the scissors fork, that is, the straight-line distance from the outer side surface of the lower positioning block A31 to the outer side surface of the lower positioning block B32 is equal to the straight-line distance between the inner sides of the two cross bars of the scissors fork.

[0033] Reference Figure 1 The calibration assembly 4 includes an outer telescopic hydraulic cylinder group 41 and an inner telescopic hydraulic cylinder group 42, both of which are slidably connected to the calibration platform 1. The outer telescopic hydraulic cylinder group 41 and the inner telescopic hydraulic cylinder group 42 can move along the length direction of the calibration platform 1. The outer telescopic hydraulic cylinder group 41 is two outer telescopic hydraulic cylinders and are respectively arranged on both sides of the length direction of the calibration platform 1. The outer telescopic hydraulic cylinder group 41 performs flatness calibration on the outer side surface of the middle cross bar of the scissors fork. The inner telescopic hydraulic cylinder group 42 is two inner telescopic hydraulic cylinders and are respectively arranged on both sides of the length direction of the calibration platform 1. The two inner telescopic hydraulic cylinders of the inner telescopic hydraulic cylinder group 42 are respectively slidably and fixedly connected to the calibration platform 1. The inner telescopic hydraulic cylinder group 42 performs flatness calibration on the inner side surface of the middle cross bar of the scissors fork.

[0034] Reference Figure 1 and Figure 2One of the external telescopic hydraulic cylinders in the external telescopic hydraulic cylinder group 41 is located on the outside of the outer side of a scissors fork cross bar. Another external telescopic hydraulic cylinder in the external telescopic hydraulic cylinder group 41 is located on the outside of the outer side of another scissors fork cross bar. A sliding bar A411 is fixedly connected to the bottom of the external telescopic hydraulic cylinder in the external telescopic hydraulic cylinder group 41, and the cross section of the sliding bar A411 is an inverted T shape. The calibration platform 1 is provided with a slide groove A11 along its own length direction, and the cross section of the slide groove A11 is an inverted T shape, that is, the sliding bar A411 at the bottom of the external telescopic hydraulic cylinder slides and is fixedly connected to the slide groove A11 of the calibration platform 1, and the external telescopic hydraulic cylinder can move along the length direction of the calibration platform 1 itself, and perform external pressure calibration on different marked uneven areas.

[0035] Reference Figure 1 and Figure 2 , one of the inner telescopic hydraulic cylinders in the inner telescopic hydraulic cylinder group 42 is located on the inner side of the inner side of a scissor fork crossbar. Another inner telescopic hydraulic cylinder in the inner telescopic hydraulic cylinder group 42 is located on the inner side of the inner side of another scissor fork crossbar. And the inner telescopic hydraulic cylinders in the inner telescopic hydraulic cylinder group 42 are all located between the upper positioning block group 2 and the lower positioning block group 3, and the inner telescopic hydraulic cylinders can move along the length direction of the calibration platform 1 itself. The calibration platform 1 is provided with a slide groove B12 located between the upper positioning block group 2 and the lower positioning block group 3 along its own length direction, and the cross section of the slide groove B12 is an inverted T shape. A sliding bar B421 is fixedly connected to the bottom of the inner telescopic hydraulic cylinder, and the cross section of the sliding bar B421 is an inverted T shape. That is, the sliding bar B421 at the bottom of the inner telescopic hydraulic cylinder slides and is fixedly connected to the slide groove B12 of the calibration platform 1, and the inner telescopic hydraulic cylinder can move along the calibration platform 1 along its own length direction, and perform external pressure calibration on different marked uneven areas.

[0036] The outer telescopic hydraulic cylinder group 41 and the inner telescopic hydraulic cylinder group 42 can quickly perform hydraulic calibration on the uneven markings on the outer and inner sides of the crossbar to improve the calibration efficiency and quality of the scissor fork.

[0037] The flatness testing assembly 10 is an L-shaped steel ruler.

[0038] The difference between Example 2 and Example 1 is: Figure 3 and Figure 4 The flatness testing assembly 10 includes four laser potentiometers and four L-shaped flatness testing pieces 5 which are slidably and fixedly connected to the calibration platform 1 .

[0039] Reference Figure 3 and Figure 4The sliding direction of the laser potentiometer is the width direction of the calibration platform 1, and the flatness test can be performed on the outer side of the crossbar of the scissors fork. The four L-shaped flatness test pieces 5 can all slide along the width direction of the calibration platform 1, and two of the four L-shaped flatness test pieces 5 perform flatness tests on the outer side of the crossbar of the scissors fork. The other two of the four L-shaped flatness test pieces 5 perform flatness tests on the inner side of the crossbar of the scissors fork.

[0040] Reference Figure 3 and Figure 4 The calibration platform 1 is provided with a slide groove C13 along its width direction, and the cross section of the slide groove C13 is an inverted T shape. The laser potentiometer includes a laser generator 101 and an inverted T-shaped slide bar A fixedly connected to the bottom of the laser generator 101, and the inverted T-shaped slide bar A is slidably and fixedly connected to the slide groove C of the calibration platform 1.

[0041] Reference Figure 3 and Figure 5 The calibration platform 1 is provided with a sliding groove 100 along its length direction, and the cross section of the sliding groove 100 is an inverted T-shape. The L-shaped flatness test piece 5 includes an L-shaped flatness test piece 51 and an inverted T-shaped slide bar B52 fixedly connected to the bottom of the L-shaped flatness test piece 51. The L-shaped flatness test piece 5 is respectively arranged on the outer side and inner side of the scissors fork cross bar positioned between the upper positioning block group 2 and the lower positioning block group 3 to test the flatness of the outer side and inner side of the scissors fork cross bar. In order to quickly mark the uneven areas of the outer side and inner side of the cross bar, a marker pen 521 is clamped on the outer surface of the L-shaped flatness test piece 51, and a marking hole 511 is opened through the center of the outer surface of the L-shaped flatness test piece 51, and the marker pen 521 marks the uneven areas of the outer side and inner side of the scissors fork cross bar.

[0042] The outer telescopic hydraulic cylinder group 41 and the inner telescopic hydraulic cylinder group 42 in the present invention can quickly perform hydraulic calibration on the uneven marked areas on the outer and inner sides of the crossbar for flatness, and then re-measure the surface flatness of the uneven marked areas through the L-shaped flatness test piece 5 and the laser potentiometer combination. If the surface flatness of the uneven marked areas meets the standard, the next scissor fork calibration is performed; if the surface flatness of the uneven marked areas does not meet the standard, the outer telescopic hydraulic cylinder group 41 and the inner telescopic hydraulic cylinder group 42 will perform surface hydraulic calibration processing on the uneven marked areas on the outer and inner sides of the crossbar again until the surface flatness of the uneven marked areas meets the standard.

[0043] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A calibration device for a scissor fork component, characterized in that: The invention comprises a calibration platform (1) and a flatness testing assembly (10), wherein the flatness testing assembly (10) performs a flatness test on the outer side surface of a crossbar in a scissor fork; the calibration platform (1) is connected to an upper positioning block group (2); the calibration platform (1) is connected to a lower positioning block group (3); the upper positioning block group (2) and the lower positioning block group (3) are used to position the scissor fork components; the calibration platform (1) is connected to a calibration assembly (4), and the calibration assembly (4) performs external pressure calibration on the flatness of the side surface of the crossbar in the scissor fork.

2. A scissors fork component calibration device according to claim 1, characterized in that: The upper positioning block group (2) comprises an upper positioning block A (21) and an upper positioning block B (22); the upper positioning block A (21) abuts against the inner side surface of one crossbar of the scissor fork, and the upper positioning block B (22) abuts against the inner side surface of the other crossbar of the scissor fork; the cross sections of the upper positioning block A (21) and the upper positioning block B (22) are both L-shaped; the upper positioning block A (21) and the upper positioning block B (22) are detachably connected to the calibration platform (1).

3. A calibration device for a scissor fork component according to claim 2, characterized in that: The lower positioning block group (3) comprises a lower positioning block A (31) and a lower positioning block B (32); the lower positioning block A (31) abuts against the inner side surface of one crossbar of the scissor fork, and the lower positioning block B (32) abuts against the inner side surface of the other crossbar of the scissor fork; the cross sections of the lower positioning block A (31) and the lower positioning block B (32) are both L-shaped; the lower positioning block A (31) and the lower positioning block B (32) are detachably connected to the calibration platform (1).

4. A scissors fork component calibration device according to claim 1, characterized in that: The flatness testing component (10) is an L-shaped steel ruler.

5. A calibration device for a scissor fork component according to claim 3, characterized in that: The flatness testing assembly (10) is a laser potentiometer, and the number of the laser potentiometers is four; the laser potentiometer is slidably connected to the calibration platform (1), and the sliding direction of the laser potentiometer is the width direction of the calibration platform (1); one of the laser potentiometers is used to test the flatness of the outer side surface of one crossbar in the scissors fork, and the other laser potentiometer is used to test the flatness of the outer side surface of another crossbar in the scissors fork.

6. A scissors fork component calibration device according to claim 5, characterized in that: The calibration platform (1) is provided with a sliding groove (100) along its length direction; the sliding groove (100) of the calibration platform (1) is slidably and fixedly connected with an L-shaped flatness test piece (5); the L-shaped flatness test piece (5) is respectively arranged on the outer side surface and the inner side surface of the scissors fork cross bar positioned between the upper positioning block group (2) and the lower positioning block group (3) to test the flatness of the outer side surface and the inner side surface of the scissors fork cross bar; the L-shaped flatness test piece (5) is provided with a marking pen (51) to mark uneven parts of the outer side surface and the inner side surface of the scissors fork cross bar.

7. A scissors fork component calibration device according to claim 1, characterized in that: The calibration component (4) comprises an external telescopic hydraulic cylinder group (41), wherein the external telescopic hydraulic cylinder group (41) comprises two external telescopic hydraulic cylinders, and the two external telescopic hydraulic cylinders are respectively arranged on both sides of the calibration platform (1) in the length direction; the external telescopic hydraulic cylinder group (41) performs flatness calibration on the outer side surface of the crossbar in the scissor fork.

8. A scissors fork component calibration device according to claim 7, characterized in that: The bottom of the external telescopic hydraulic cylinder in the external telescopic hydraulic cylinder group (41) is fixedly connected to a sliding bar A (411); the calibration platform (1) is provided with a sliding groove A (11) along its length direction; the sliding bar A (411) at the bottom of the external telescopic hydraulic cylinder slides and is fixedly connected to the sliding groove A (11) of the calibration platform (1); the external telescopic hydraulic cylinder can move along the calibration platform (1) along its length direction.

9. A scissors fork component calibration device according to claim 7, characterized in that: The calibration component (4) further comprises an inner telescopic hydraulic cylinder group (42), wherein the inner telescopic hydraulic cylinder group (42) comprises two inner telescopic hydraulic cylinders, and the two inner telescopic hydraulic cylinders are respectively slidably and fixedly connected to the calibration platform (1). The inner telescopic hydraulic cylinder group (42) performs flatness calibration on the inner side surface of the crossbar in the scissor fork.

10. A scissors fork component calibration device according to claim 9, characterized in that: The inner telescopic hydraulic cylinder group (42) is located between the upper positioning block group (2) and the lower positioning block group (3); the calibration platform (1) is provided with a slide groove B (12) along its length direction, and the slide groove B (12) is located between the upper positioning block group (2) and the lower positioning block group (3); a sliding bar B (421) is fixedly connected to the bottom of the inner telescopic hydraulic cylinder; the sliding bar B (421) at the bottom of the inner telescopic hydraulic cylinder is slidably and fixedly connected to the slide groove B (12) of the calibration platform (1); the inner telescopic hydraulic cylinder can move along the calibration platform (1) along its length direction.

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