Rapid switching and accurate positioning substrate device for machining production line

Abstract

The utility model discloses a rapid switching and accurate positioning substrate device for a machining production line. The rapid switching and accurate positioning substrate device comprises a clamp side rapid switching substrate and a fixed side substrate, the clamp side quick-change base plate comprises a clamp mounting plate, first positioning locking mechanisms are arranged on the clamp mounting plate in a bilateral symmetry mode, each positioning locking mechanism comprises a first supporting block, a supporting fixing block, a guide rail, a positioning adjusting Latin and a locking Latin, and the fixed side base plate comprises a fixed mounting plate. Second positioning and locking mechanisms are arranged on the fixed mounting plate in a bilateral symmetry mode, and each second positioning and locking mechanism comprises a jacking mechanism, a zero point positioning unit and a guide assembly. According to the utility model, in the same processing procedure, the similar processing parts can be quickly switched and accurately positioned, so that the production time is greatly shortened, and the production efficiency is improved. When the machining procedures of the same structural part are switched, rapid switching and accurate positioning can be achieved, the production time is greatly shortened, and therefore the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a machining center, and more particularly to a device for quickly switching and accurately positioning a substrate for a machining production line. Background Art

[0002] In heavy-duty engineering vehicles, the key large structural parts of the body, important assembly holes and mounting surfaces of welded parts need to be processed in the machining center:

[0003] 1. The structural parts need to be fixed on a special processing fixture first. The base plate of the special fixture and the workbench of the machining center need to be manually fixed on the workbench with the help of a splint. Before the fixture is fixed, the position of the workpiece relative to the machine tool processing spindle needs to be repeatedly tested to determine.

[0004] 2. When switching processing steps, the fixture needs to be re-fixed on the workbench with a clamp. Before the fixture is fixed, the position of the workpiece relative to the machine tool processing spindle needs to be determined through inspection.

[0005] 3. After processing, the workpiece and fixture will be moved to the inspection and cleaning station, and the operator will fix the fixture position again with a splint;

[0006] The existing technical solutions have the following shortcomings:

[0007] 1. Before the machining center performs machining operations on the same process, the position of the workpiece relative to the spindle of the machining center needs to be measured and determined by the operator with the help of tools before the fixture can be fixed. Operators need to repeat the same operation to perform new machining tasks. The low accuracy of the fixture position determined by manual measurement will affect the machining results, and it cannot be guaranteed that the position of the fixture fixed by the operator is completely consistent each time without deviation.

[0008] 2. When switching the processing steps for the same structural part, the workpiece's reference position and processing position relative to the processing spindle will change. The operator needs to check and re-determine the position of the workpiece relative to the machine tool's processing spindle.

[0009] 3. Low degree of automation and low production efficiency. Summary of the Invention

[0010] The purpose of the present utility model is to provide a device for quickly switching and accurately positioning substrates for machining production lines, which is intended to solve the technical problems in the prior art of repeated clamp fixation operations, low positioning accuracy, and low production efficiency.

[0011] The utility model discloses a device for quickly switching and accurately positioning a substrate for a machining production line, comprising a fixture-side quick-change substrate and a fixed-side substrate;

[0012] The fixture-side quick-change base plate includes a fixture mounting plate, and the fixture mounting plate is symmetrically provided with a first positioning locking mechanism. The two positioning locking mechanisms each include at least two first support blocks, a support fixing block, a guide rail, a positioning adjustment Latin and two locking Latins. The first support block, the support fixing block and the guide rail are spaced apart from the inside to the outside along the length direction of the fixture mounting plate, and the support fixing blocks are spaced apart along the width direction of the fixture mounting plate. The length direction of the support fixing block and the guide rail is parallel to the width direction of the fixture mounting plate. The positioning adjustment Latin and the locking Latin are spaced apart on the support fixing block along the length direction of the support fixing block, and the positioning adjustment Latin is located at the end of the support fixing block;

[0013] The fixed side base plate includes a fixed mounting plate, on which second positioning and locking mechanisms are symmetrically arranged on the left and right sides of the fixed mounting plate, and each of the two second positioning and locking mechanisms includes a lifting mechanism, three zero-point positioning units, and a guide assembly spaced from the inside to the outside along the length direction of the fixed mounting plate. The zero-point positioning units are spaced along the width direction of the fixed mounting plate, and a second support block is respectively provided between any two adjacent zero-point positioning units on the fixed mounting plate.

[0014] The zero point positioning unit cooperates with the positioning adjustment Latin and the locking Latin, the guide assembly cooperates with the guide track, the first support block cooperates with the fixed mounting plate, and the second support block cooperates with the support fixing block.

[0015] Furthermore, the fixed mounting plate is provided with an in-position sensor, a descent sensor and a lift sensor.

[0016] Furthermore, the number of the first support blocks in one of the first positioning and locking mechanisms is five.

[0017] Furthermore, the positioning adjustment key in one of the first positioning locking mechanisms is a positioning key, and the positioning adjustment key in the other first positioning locking mechanism is an adjustment key.

[0018] Compared with the prior art, the utility model has positive and obvious effects.

[0019] 1. In the same processing step, similar workpieces can be quickly switched and accurately positioned, which greatly reduces production time and thus improves production efficiency.

[0020] 2. When switching processing procedures for the same structural part, rapid switching and precise positioning can be achieved, which greatly reduces production time and thus improves production efficiency.

[0021] 3. The repeatability of the fixture-side quick-change baseplate and the fixed-side baseplate can reach + / -0.005mm, facilitating a wide range of applications.

[0022] 4. High degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of a fixture-side quick-change substrate in a device for quickly switching and accurately positioning substrates in a machining production line according to the utility model.

[0024] Figure 2 This is a schematic diagram of a fixed side substrate of a device for quickly switching and accurately positioning substrates in a machining production line according to the present invention.

[0025] Figure 3 This is a schematic diagram of a device for quickly switching and accurately positioning substrates in a machining production line according to the present invention. DETAILED DESCRIPTION

[0026] The following is a further description of the present invention in conjunction with an embodiment. However, the present invention is not limited to the embodiment. All similar structures and similar variations of the present invention should be included in the scope of protection of the present invention. The use of directions such as up, down, front, back, left, and right in the present invention is only for the convenience of clear description and does not limit the technical solution of the present invention.

[0027] like Figure 1-Figure 3 As shown, the utility model is a device for quickly switching and accurately positioning substrates for machining production lines, comprising a fixture-side quick-change substrate and a fixed-side substrate;

[0028] The fixture-side quick-change base plate includes a fixture mounting plate 11, and the fixture mounting plate 11 is symmetrically provided with a first positioning locking mechanism. The two positioning locking mechanisms each include at least two first support blocks 15, a support and fixing block 12, a guide rail 13, a positioning adjustment Latin and two locking Latins 14. The first support block 15, the support and fixing block 12 and the guide rail 13 are spaced apart from the inside to the outside along the length direction of the fixture mounting plate 11, and the support and fixing block 12 is spaced apart along the width direction of the fixture mounting plate 11. The length direction of the support and fixing block 12 and the guide rail 13 is parallel to the width direction of the fixture mounting plate 11. The positioning adjustment Latin and the locking Latin 14 are spaced apart on the support and fixing block 12 along the length direction of the support and fixing block 12, and the positioning adjustment Latin is located at the end of the support and fixing block 12;

[0029] The fixed side base plate includes a fixed mounting plate 21, and second positioning and locking mechanisms are symmetrically arranged on the fixed mounting plate 21. The two second positioning and locking mechanisms each include a lifting mechanism 22, three zero-point positioning units 28, and a guide assembly 23, which are arranged from the inside to the outside along the length direction of the fixed mounting plate 21. The zero-point positioning units 28 are arranged at intervals along the width direction of the fixed mounting plate 21. A second support block 26 is respectively provided between any two adjacent zero-point positioning units 28 on the fixed mounting plate 21.

[0030] The zero point positioning unit 28 cooperates with the positioning adjustment Latin and the locking Latin 14 , the guide assembly 23 cooperates with the guide rail 13 , the first support block 15 cooperates with the fixed mounting plate 21 , and the second support block 26 cooperates with the support fixing block 12 .

[0031] Furthermore, the fixed mounting plate 21 is provided with an in-position sensor 27 , a descending sensor 25 and a lifting sensor 24 .

[0032] Furthermore, the number of the first support blocks 15 in one of the first positioning and locking mechanisms is five.

[0033] Furthermore, the positioning adjustment key in one of the first positioning locking mechanisms is positioning key 16, and the positioning adjustment key in the other first positioning locking mechanism is adjustment key 17.

[0034] Specifically, the guide rail 13, positioning adjustment Latin, locking Latin 14, lifting mechanism 22, zero point positioning unit 28, guide assembly 23, in-place sensor 27, descent sensor 25, lifting sensor 24, etc. in this embodiment all adopt well-known solutions in the prior art, which are well known to those skilled in the art and will not be repeated here.

[0035] The working principle of this embodiment is as follows:

[0036] The fixture of the workpiece is mounted on the fixture mounting plate 11 of the fixture-side quick-change baseplate. The bottom surface of the fixture mounting plate 11 can be machined with mounting holes according to the fixture, which is used to mount the fixture on the fixture-side quick-change baseplate. The fixed-side baseplate is mounted on the workbench of the machining center, the inspection and cleaning station after the workpiece is processed, or other stations required by the process. If the fixed-side baseplate is mounted on the workbench of the machining center, the position of the fixed-side baseplate needs to be measured in advance to meet the machining requirements of the machining center for the workpiece and to be determined. This allows for rapid switching and precise positioning during subsequent machining of the same workpiece.

[0037] After the fixture side quick change substrate is driven into the workstation by the external drive mechanism, it comes to the fixed side substrate. The in-position sensor 27 receives a signal. Under the control of the controller, the external drive mechanism stops driving, the lifting mechanism 22 of the fixed side substrate descends, and the positioning adjustment Latin, locking Latin 14 and zero point positioning unit 28 are positioned. After descending into position, the descending sensor 25 receives a signal. The internal structure of the zero point positioning unit 28 acts to lock the positioning adjustment Latin and locking Latin 14 to achieve the fixation of the fixture side quick change substrate and the fixed side substrate. The first support block 15 is used to support the fixed mounting plate 21, and the second support block 26 is used to support the support fixed block 12. Then the next step can be performed. When the operation of this process is completed, the internal structure of the zero point positioning unit 28 acts to release and unlock the positioning adjustment Latin and locking Latin 14. The lifting mechanism 22 rises to lift the fixture side quick change substrate and the fixture. The lifting sensor 24 detects that the lifting is in place, and the external drive mechanism drives the fixture side quick change substrate and the fixture to leave this station.

[0038] Functional Description:

[0039] The two sets of in-position sensors 27 on the fixed side substrate limit bracket are used for induction of in-position signals of the quick-change substrate on the fixture side;

[0040] The descent sensor 25 of the fixed side substrate is used to detect when the fixture side quick-change substrate has descended into position;

[0041] The first support block 15 of the fixed side base plate is used to support the fixed mounting plate 21 of the fixture side quick change base plate;

[0042] The second support block 26 of the fixed side base plate is used to support the support and fixed block 12 of the fixture side quick-change base plate;

[0043] The fixed side base plate is composed of a push-pull clamp, rollers, and a wheel bracket. The lifting mechanism 22 is used to lift the fixture side quick-change base plate;

[0044] The fixed side substrate descending sensor 25 is used to detect when the fixture side quick-change substrate has descended into position;

[0045] The guide assembly 23 composed of guide wheels is used to guide the guide rail 13;

[0046] The positioning adjustment Latin of the quick-change baseplate on the fixture side matches the corresponding zero point positioning unit 28 of the fixed side baseplate, which can achieve the requirement of repeated positioning accuracy of + / -0.005mm and avoid over-positioning when the upper and lower baseplates are matched;

[0047] The clamping latch 14 of the fixture-side quick-change baseplate matches the zero-point positioning unit 28 corresponding to the fixed-side baseplate, and can fix the position of the fixture-side quick-change baseplate.

[0048] Advantages of this utility model:

[0049] 1. In the same processing step, similar workpieces can be quickly switched and accurately positioned, which greatly reduces production time and thus improves production efficiency.

[0050] 2. When switching processing procedures for the same structural part, rapid switching and precise positioning can be achieved, which greatly reduces production time and thus improves production efficiency.

[0051] 3. The repeatability of the fixture-side quick-change baseplate and the fixed-side baseplate can reach + / -0.005mm, facilitating a wide range of applications.

[0052] 4. High degree of automation.

Claims

1. A device for quickly switching and accurately positioning substrates for machining production lines, characterized by: It includes a fixture side quick-change base plate and a fixed side base plate; The fixture-side quick-change base plate includes a fixture mounting plate, and the fixture mounting plate is symmetrically provided with a first positioning locking mechanism. The two positioning locking mechanisms each include at least two first support blocks, a support fixing block, a guide rail, a positioning adjustment Latin and two locking Latins. The first support block, the support fixing block and the guide rail are spaced apart from the inside to the outside along the length direction of the fixture mounting plate, and the support fixing blocks are spaced apart along the width direction of the fixture mounting plate. The length direction of the support fixing block and the guide rail is parallel to the width direction of the fixture mounting plate. The positioning adjustment Latin and the locking Latin are spaced apart on the support fixing block along the length direction of the support fixing block, and the positioning adjustment Latin is located at the end of the support fixing block; The fixed side base plate includes a fixed mounting plate, on which second positioning and locking mechanisms are symmetrically arranged on the left and right sides of the fixed mounting plate, and each of the two second positioning and locking mechanisms includes a lifting mechanism, three zero-point positioning units, and a guide assembly spaced from the inside to the outside along the length direction of the fixed mounting plate. The zero-point positioning units are spaced along the width direction of the fixed mounting plate, and a second support block is respectively provided between any two adjacent zero-point positioning units on the fixed mounting plate. The zero point positioning unit cooperates with the positioning adjustment Latin and the locking Latin, the guide assembly cooperates with the guide track, the first support block cooperates with the fixed mounting plate, and the second support block cooperates with the support fixing block.

2. The device for rapidly switching and accurately positioning substrates for machining production lines according to claim 1, characterized in that: The fixed mounting plate is provided with an in-position sensor, a descending sensor and a lifting sensor.

3. The device for rapidly switching and accurately positioning substrates for machining production lines according to claim 1, characterized in that: The number of the first supporting blocks in one of the first positioning and locking mechanisms is five.

4. The device for rapidly switching and accurately positioning substrates for machining production lines according to claim 1, characterized in that: The positioning adjustment key in one of the first positioning locking mechanisms is a positioning key, and the positioning adjustment key in the other first positioning locking mechanism is an adjustment key.

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