Positioning tool

Abstract

The positioning tool is characterized in that an upper beam of a press machine is connected with a hydraulic cylinder, a graduated scale is connected to a piston rod of the hydraulic cylinder, and the length of the graduated scale extends along the length of the piston rod of the hydraulic cylinder; the pointing structure is connected to the upper beam, and the pointing end of the pointing structure is close to the scale line of the calibrated scale. The invention discloses a positioning tool which is easy to operate and capable of correcting parts to be qualified at a time in the batch part production process, so that the working efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the field of positioning technology, and more particularly to a positioning tool. Background Art

[0002] During the heating and cooling process of heat treatment, the size and shape of steel parts will change to varying degrees under the combined effect of thermal stress and structural stress. The inconsistent structural transformation of various parts of the parts and the asynchrony of thermal expansion and contraction will generally cause different degrees and forms of distortion of the workpiece after heat treatment, such as expansion or contraction of the outer diameter or inner diameter, bending of the rod or shaft, distortion of the plate or disc, etc., which often require static load correction.

[0003] There is a weak link in the calibration process after heat treatment in the workshop. In the actual production process, the operator can only observe the calibration degree with the naked eye and repeatedly calibrate - measure - calibrate. The operation is difficult. In addition, when mass-producing parts, the time cost is high and the one-time calibration pass rate is low, resulting in a waste of time and personnel.

[0004] Therefore, how to provide a positioning tool that is easy to operate and improves work efficiency is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of this, the present invention provides a positioning tool, which is easy to operate and can calibrate parts to be qualified at one time during the batch production process, thereby improving work efficiency.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A positioning tool, the upper beam of the press is connected with a hydraulic cylinder, comprising:

[0008] A scale, the scale is connected to the piston rod of the hydraulic cylinder, and the length of the scale extends along the length of the piston rod of the hydraulic cylinder;

[0009] A pointing structure is connected to the upper beam, and a pointing end of the pointing structure is close to the scale line of the scale.

[0010] The present application adopts the above-mentioned technical solution. Through the cooperation of the scale and the pointing structure, the present application can directly observe the dimensional changes of the parts during the correction process, which not only improves the accuracy of the parts correction but also simplifies the operation.

[0011] Furthermore, when calibrating multiple parts of the same batch, the present application only needs to calibrate the first part to determine the reference line on the scale, and then the remaining parts can be calibrated to the qualified size at one time, thereby reducing time costs and improving work efficiency.

[0012] Preferably, the pointing structure includes:

[0013] A vertical rod, the vertical rod is vertically connected to the upper beam and is spaced apart and arranged in parallel with the piston rod of the hydraulic cylinder;

[0014] A cross bar, wherein the cross bar is arranged perpendicular to the vertical bar, and one end of the cross bar is connected to the vertical bar;

[0015] The pointer is the pointing end of the pointing structure and is connected to an end of the horizontal rod away from the vertical rod.

[0016] The pointer of the present application is connected to the vertical rod through a horizontal rod, so when the scale is lowered along with the piston rod of the hydraulic cylinder, the pointer can be made to point to the scale line on the scale.

[0017] Preferably, the vertical rod is connected to the upper beam by a magnet to facilitate the installation of the vertical rod on the upper beam, and can be disassembled to facilitate replacement of the vertical rod without causing damage to the press. When the application is not needed, the application can be removed from the press so that the press can perform other work.

[0018] Preferably, the cross bar is connected to the vertical bar via a locking structure, and the cross bar is positioned on the vertical bar via the locking structure.

[0019] Preferably, the locking structure comprises:

[0020] A "U"-shaped clip, wherein the inner wall of the closed end of the "U"-shaped clip is provided with a limiting groove, and the "U"-shaped clip is clamped on the vertical rod through the limiting groove, and the "U"-shaped clip can reciprocate along the axial direction of the vertical rod;

[0021] A first-step stepped shaft, and both clamp arms of the "U"-shaped clamp are penetrated with light holes, and the two light holes are arranged concentrically, the free ends of the small diameter shaft section of the first-step stepped shaft pass through the two light holes respectively, and the shaft shoulder of the first-step stepped shaft abuts on the corresponding clamp arm, the diameter of the large diameter shaft section of the first-step stepped shaft is larger than the aperture of the light hole, and one end of the cross bar is vertically connected to the large diameter shaft section of the first-step stepped shaft;

[0022] A first nut is threadedly connected to the free end of the small-diameter shaft section of the first-step stepped shaft, so as to locate the position of the "U"-shaped clamp on the vertical rod by tightening the first nut.

[0023] The present application adopts the above technical solution, and by adjusting the position of the pointer connected to the crossbar, the pointer can be within the measuring range of the scale.

[0024] Preferably, the first nut is a plum blossom handle nut for easy operation.

[0025] Preferably, the pointer is detachably connected to the cross bar via a connecting structure.

[0026] Preferably, the connection structure comprises:

[0027] Screw;

[0028] A joint, the joint is connected to an end of the cross bar away from the vertical bar, and the joint has a threaded through hole;

[0029] The adapter is arranged vertically, and a through hole is passed through the top of the adapter. The adapter is sleeved on the screw through the through hole. One end of the screw is threadedly connected to the threaded through hole, and the other end is connected to a handle, and the diameter of the handle is larger than the aperture of the through hole; the pointer is vertically clamped at the bottom end of the adapter.

[0030] The present application adopts the above technical solution so that the pointer can be removed.

[0031] Preferably, the tip of the pointer is close to and points to the scale line on the scale to enable more accurate reading.

[0032] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a positioning tool that can achieve the following technical effects:

[0033] 1. The present application can directly observe the size changes of parts during the calibration process through the cooperation of the scale and the pointing structure, which can not only improve the accuracy of part calibration but also simplify the operation.

[0034] 2. When calibrating multiple parts of the same batch, the present application only needs to calibrate the first part to determine the reference line on the scale, and then the remaining parts can be calibrated to the qualified size at one time, thereby reducing time costs and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention 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 embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0036] Figure 1 This is a schematic diagram of the overall structure of a positioning tool of the present invention;

[0037] Figure 2 for Figure 1 A magnified view of the structure at center.

[0038] Figure 3 for Figure 1 A magnified view of the structure at point B.

[0039] Among them, 101-upper beam; 102-hydraulic cylinder; 1-scale; 103-piston rod; 21-vertical rod; 22-cross rod; 23-pointer; 3-magnet; 4-locking structure; 41-"U"-shaped clip; 42-first-step shaft; 43-first nut; 5-connecting structure; 51-joint; 52-adapter; 53-handle. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The embodiment of the present invention discloses a positioning tool, wherein an upper beam 101 of a press is connected to a hydraulic cylinder 102, comprising:

[0044] A scale 1, the scale 1 is connected to the piston rod 103 of the hydraulic cylinder 102, and the length of the scale 1 extends along the length of the piston rod 103 of the hydraulic cylinder 102;

[0045] The pointing structure is connected to the upper beam 101 , and the pointing end of the pointing structure is close to the scale line of the scale 1 .

[0046] Here’s how this application works:

[0047] S1, first install the first part on the V-shaped iron at the bottom of the press (this process is a common operation for presses);

[0048] S2, during the static load correction operation, the piston rod 103 of the hydraulic cylinder 102 is controlled to move downward so that the free end of the piston rod 103 acts on the high point of the part deformation, and when the free end of the piston rod 103 just touches the high point of the part deformation, the initial scale indicated by the pointing end in the pointing structure on the scale 1 is recorded, and then the piston rod 103 of the hydraulic cylinder 102 is continued to be controlled to move downward so that the pressure of the piston rod 103 acts on the high point of the part deformation, and the correction is performed by maintaining this pressure for a certain period of time;

[0049] S3, during the calibration process of the press, the scale 1 moves downward with the piston rod 103, and the pointing end of the pointing structure can clearly indicate the last position of the scale 1 during the calibration operation. At this time, the last scale indicated by the pointing end of the pointing structure on the scale 1 is recorded;

[0050] S4, repeat steps S2-S3 several times until the first part meets the size requirement. At this time, record the position indicated by the pointing end in the pointing structure on the scale 1 when the first part is qualified, and mark this position on the scale 1 as the reference line. When the deformation amounts of multiple parts in the same heat treatment furnace tend to be consistent, the remaining products are installed on the V-shaped iron at the bottom of the press in turn, and the piston rod 103 of the hydraulic cylinder 102 is controlled to move downward at one time in turn. When the pointing end in the pointing structure directly points to the reference line on the scale 1, stop driving the piston rod 103 of the hydraulic cylinder 102 to press downward, and finally the corrected parts can be obtained in turn.

[0051] In order to further optimize the above technical solution, the pointing structure includes:

[0052] A vertical rod 21, the vertical rod 21 is vertically connected to the upper beam 101, and is spaced apart and arranged in parallel with the piston rod 103 of the hydraulic cylinder 102;

[0053] A cross bar 22, the cross bar 22 is arranged perpendicular to the vertical bar 21, and one end of the cross bar 22 is connected to the vertical bar 21;

[0054] The pointer 23 is the pointing end in the pointing structure and is connected to an end of the horizontal rod 22 away from the vertical rod 21 .

[0055] In order to further optimize the above technical solution, the vertical rod 21 is connected to the upper beam 101 through the magnet 3.

[0056] In order to further optimize the above technical solution, the cross bar 22 is connected to the vertical bar 21 through a locking structure 4 , and the cross bar 22 is positioned on the vertical bar 21 through the locking structure 4 .

[0057] In order to further optimize the above technical solution, the locking structure 4 includes:

[0058] A "U"-shaped clip 41, and a limiting groove is provided on the inner wall of the closed end of the "U"-shaped clip 41, and the "U"-shaped clip 41 is clamped on the vertical rod 21 through its limiting groove, and the "U"-shaped clip 41 can reciprocate along the axial direction of the vertical rod 21;

[0059] A first-step stepped shaft 42, and both clamp arms of the "U"-shaped clamp 41 are penetrated with light holes, and the two light holes are arranged concentrically, the free ends of the small diameter shaft section of the first-step stepped shaft 42 pass through the two light holes respectively, and the shaft shoulder of the first-step stepped shaft 42 abuts on the corresponding clamp arm, the diameter of the large diameter shaft section of the first-step stepped shaft 42 is larger than the aperture of the light hole, and one end of the cross bar 22 is vertically connected to the large diameter shaft section of the first-step stepped shaft 42;

[0060] The first nut 43 is threadedly connected to the free end of the small-diameter shaft section of the first-step stepped shaft 42 so as to locate the position of the “U”-shaped clip 41 on the vertical rod 21 by tightening the first nut 43 .

[0061] Specifically: when the first nut 43 is loosened, the clamping force of the "U"-shaped clamp 41 relative to the vertical rod 21 can be removed. At this time, the "U"-shaped clamp 41 can be pushed upward or downward, thereby driving the cross bar 22 to move synchronously, so as to adjust the position of the pointer 23 connected to the cross bar 22, so that the pointer 23 can be within the measuring range of the scale 1.

[0062] In order to further optimize the above technical solution, the first nut 43 is a nut with a plum blossom handle 53 .

[0063] In order to further optimize the above technical solution, the pointer 23 is detachably connected to the cross bar 22 via the connecting structure 5 .

[0064] In order to further optimize the above technical solution, the connection structure 5 includes:

[0065] Screw;

[0066] A joint 51, the joint 51 is connected to an end of the cross bar 22 away from the vertical bar 21, and has a threaded through hole;

[0067] The adapter 52 is arranged vertically, and a through hole is passed through the top of the adapter 52. The adapter 52 is sleeved on the screw through the through hole. One end of the screw is threadedly connected in the threaded through hole, and the other end is connected with a handle 53, and the diameter of the handle 53 is larger than the aperture of the through hole; the pointer 23 is vertically clamped at the bottom end of the adapter 52.

[0068] Specifically, when the handle 53 is screwed, the screw rod can be screwed, and the screw rod can be screwed out of the threaded through hole of the connector 51 , so that the adapter 52 can be removed from the screw rod, so that the pointer 23 can be replaced easily.

[0069] A clamping hole is formed at the bottom of the adapter 52 , and an end of the pointer 23 away from the tip thereof is clamped in the clamping hole.

[0070] In order to further optimize the above technical solution, the tip of the pointer 23 is close to and points to the scale line on the scale 1.

[0071] In order to further optimize the above technical solution, the scale 1 is bonded to the piston rod 103 of the hydraulic cylinder 102, so that the scale 1 can be removed from the piston rod 103 of the hydraulic cylinder 102 without damaging the piston rod 103 of the hydraulic cylinder 102, so that when the present application is not in use, the scale 1 can be removed, so that the press can perform other work.

[0072] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0073] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A positioning tool, wherein the upper beam (101) of a press is connected to a hydraulic cylinder (102), characterized in that: include: A scale (1), the scale (1) being connected to the piston rod (103) of the hydraulic cylinder (102), and the length of the scale (1) extending along the length of the piston rod (103) of the hydraulic cylinder (102); A pointing structure, wherein the pointing structure is connected to the upper beam (101), and a pointing end of the pointing structure is close to a scale line of the scale (1).

2. A positioning tool according to claim 1, characterized in that: The pointing structure comprises: A vertical rod (21), the vertical rod (21) is vertically connected to the upper beam (101), and is spaced apart and arranged in parallel with the piston rod (103) of the hydraulic cylinder (102); A cross bar (22), wherein the cross bar (22) is arranged perpendicular to the vertical bar (21), and one end of the cross bar (22) is connected to the vertical bar (21); A pointer (23), the pointer (23) being the pointing end of the pointing structure, connected to an end of the horizontal rod (22) away from the vertical rod (21).

3. A positioning tool according to claim 2, characterized in that: The vertical rod (21) is connected to the upper beam (101) via a magnet (3).

4. A positioning tool according to claim 2, characterized in that: The cross bar (22) is connected to the vertical bar (21) via a locking structure (4), and the position of the cross bar (22) on the vertical bar (21) is positioned via the locking structure (4).

5. A positioning tool according to claim 4, characterized in that: The locking structure (4) comprises: A "U"-shaped clip (41), wherein the inner wall of the closed end of the "U"-shaped clip (41) is provided with a limiting groove, and the "U"-shaped clip (41) is clamped on the vertical rod (21) through the limiting groove, and the "U"-shaped clip (41) can reciprocate along the axial direction of the vertical rod (21); A first-step stepped shaft (42), and both clamp arms of the "U"-shaped clamp (41) are penetrated with light holes, and the two light holes are arranged concentrically, the free ends of the small diameter shaft section of the first-step stepped shaft (42) pass through the two light holes respectively, and the shaft shoulder of the first-step stepped shaft (42) abuts against the corresponding clamp arm, the diameter of the large diameter shaft section of the first-step stepped shaft (42) is larger than the aperture of the light hole, and one end of the cross bar (22) is vertically connected to the large diameter shaft section of the first-step stepped shaft (42); A first nut (43) is threadedly connected to the free end of the small-diameter shaft section of the first-step stepped shaft (42) so as to locate the position of the "U"-shaped clip (41) on the vertical rod (21) by tightening the first nut (43).

6. A positioning tool according to claim 5, characterized in that: The first nut (43) is a nut with a plum blossom handle (53).

7. A positioning tool according to claim 2, characterized in that: The pointer (23) is detachably connected to the crossbar (22) via a connecting structure (5).

8. A positioning tool according to claim 7, characterized in that: The connection structure (5) comprises: Screw; A joint (51), the joint (51) being connected to an end of the cross bar (22) away from the vertical bar (21), and having a threaded through hole; The adapter (52) is arranged vertically, and a through hole is passed through the top of the adapter (52). The adapter (52) is sleeved on the screw through the through hole. One end of the screw is threadedly connected to the threaded through hole, and the other end is connected to a handle (53), and the diameter of the handle (53) is larger than the aperture of the through hole; the pointer (23) is vertically clamped at the bottom end of the adapter (52).

9. A positioning tool according to any one of claims 2 to 8, characterized in that: The tip of the pointer (23) is close to and points to the scale line on the scale (1).

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