Primary-secondary type quick-change clamp and machining equipment

Abstract

The utility model belongs to the technical field of machining, and discloses a primary-secondary type quick-change clamp and machining equipment. The child-mother type quick-change clamp comprises a mother seat and a child clamp, the child clamp can be placed on the mother seat, a plurality of positioning assemblies are arranged on the mother seat in the circumferential direction of the child clamp, each positioning assembly comprises a positioning seat, an abutting rod and a driving part, and the abutting rods are rotationally connected to the positioning seats; the abutting rod can rotate to abut against the first working state of the side, away from the mother base, of the child clamp and release the second working state of the child clamp, and the driving piece can drive the abutting rod to rotate. According to the child-mother type quick-change clamp, the driving piece drives the abutting rod to rotate so that the abutting rod can abut against the side, away from the mother base, of the child clamp and can abut against the side, away from the mother base, of the child clamp, and therefore the positioning effect of the child clamp is guaranteed, and meanwhile the replacement convenience of the child clamp is considered.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a parent-child quick-change fixture and processing equipment. Background Art

[0002] A fixture is a device used to position a workpiece during machining, ensuring it occupies the correct position for processing or inspection. To improve efficiency, some fixtures are designed as a parent-child combination. These consist of a parent and a child fixture, with multiple child fixtures being provided, each capable of holding multiple workpieces at a time. Once all workpieces on the parent have been machined, machining can resume simply by replacing the child fixture with another fully loaded one, saving time when changing workpieces.

[0003] Currently, the sub-clamp is initially positioned by plugging and fitting the locating pins and the holes, and there are two main ways to finally position the sub-clamp. The first is to clamp and position the sub-clamp by two relatively sliding clamping plates. Although this method is convenient for loading and unloading the sub-clamp, it relies solely on friction to clamp the sub-clamp, which will cause abnormal movement of the sub-clamp during processing, and then cause the workpiece to shift, affecting the processing quality; the other is to set multiple pressure plates that are slidably connected to the mother seat on the side of the sub-clamp away from the mother seat, and press the sub-clamp against the mother seat through the pressure plate. Although this method can stably position the sub-clamp, when the sub-clamp is removed directly in the direction away from the mother seat, it will be blocked by the pressure plate. It is necessary to first move a certain distance in the direction perpendicular to the surface of the mother seat, and then pull it out in the direction parallel to the surface of the mother seat. In addition, the sub-clamp with the workpiece has a certain weight, so it is inconvenient to replace the sub-clamp.

[0004] Therefore, the above problems need to be solved urgently. Utility Model Content

[0005] The purpose of the utility model is to provide a parent-child quick-change clamp and processing equipment, so as to take into account the positioning effect of the sub-clamp and the convenience of replacing the sub-clamp, thereby improving the clamping efficiency of the sub-clamp without affecting the processing quality.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A mother-and-child quick-change fixture includes a mother base and a child fixture. The mother base can hold the child fixture, and the child fixture can position multiple workpieces. A plurality of positioning components are provided on the mother base along the circumference of the child fixture. The positioning components include:

[0008] Positioning seat;

[0009] a pressing rod, the pressing rod being rotatably connected to the positioning seat, the pressing rod being capable of rotating to a first working state in which the pressing rod presses the sub-clamp away from the side of the mother seat and a second working state in which the pressing rod releases the pressing of the sub-clamp, and when the pressing rod is in the second working state, the sub-clamp can be removed in a direction perpendicular to the surface of the mother seat; and

[0010] A driving member capable of driving the pressing rod to rotate so as to switch the pressing rod between the first working state and the second working state.

[0011] Preferably, the positioning component further comprises:

[0012] A support rod, both ends of which are hinged to the positioning seat and the middle section of the pressing rod respectively, and an output shaft of the driving member is rotatably connected to an end of the pressing rod away from the sub-clamp.

[0013] Preferably, an escape groove is provided at one end of the pressing rod close to the sub-clamp, and the escape groove is located on a side of the pressing rod close to the sub-clamp.

[0014] Preferably, a plurality of limiting blocks are provided on the mother seat, and the plurality of limiting blocks enclose a limiting area for limiting the sub-clamp.

[0015] Preferably, a first positioning pin is provided on the female seat, and a first positioning hole is provided on the sub-clamp, and the first positioning pin can be plugged and matched with the first positioning hole.

[0016] Preferably, a second positioning pin is provided on the female seat, and a positioning groove is provided on the sub-clamp, and the second positioning pin can be plugged into and matched with the positioning groove.

[0017] Preferably, the sub-clamp comprises:

[0018] base plate; and

[0019] The cover plate can be positioned and covered on a side of the base plate facing away from the female seat.

[0020] Preferably, a guide post is provided on the bottom plate, and a guide hole is provided on the cover plate, and the guide post can be plugged into and fitted with the guide hole.

[0021] Preferably, a second positioning hole is provided on the bottom plate, a third positioning hole is provided on the cover plate, and a third positioning pin is passed through the interior of the second positioning hole.

[0022] Processing equipment, the processing equipment includes an equipment body and a mother-and-child quick-change fixture, and the mother-and-child quick-change fixture is connected to the equipment body.

[0023] The utility model discloses beneficial effect:

[0024] The utility model discloses a parent -child type quick change clamp, when clamping the child clamp, place the child clamp with multiple workpieces on the female seat, drive the abutting and pressing rod to rotate to the first working condition through the driving part, so that the abutting and pressing rod abuts and presses the child clamp to deviate from the female seat one side, thereby realizing the stable positioning of child clamp with the cooperation of multiple positioning assemblies, and the child clamp cannot move to the direction deviating from the female seat,

[0025] When replacing the child clamp, drive the abutting and pressing rod to rotate to the second working condition through the driving part, namely the abutting and pressing rod rotates to the side deviating from the child clamp to deviate from the female seat, not only make the abutting and pressing rod release the abutting and pressing of the child clamp, but also can take down the child clamp along the direction perpendicular to the surface of the female seat, namely the child clamp cannot be hindered by the abutting and pressing rod in the process of deviating from the female seat, make the child clamp take more convenient, thereby guaranteeing the positioning effect of child clamp and giving consideration to the convenience of child clamp replacement. DRAWINGS

[0026] Figure 1 It is the structural schematic diagram of the parent -child type quick change clamp of the utility model,

[0027] Figure 2 It is the structural schematic diagram of the female seat of the utility model,

[0028] Figure 3 It is the explosion drawing of the child clamp of the utility model,

[0029] Figure 4 It is the structural schematic diagram of the positioning assembly of the utility model.

[0030] In the drawing,

[0031] 1, female seat, 11, limit block, 12, first positioning pin, 13, support plate, 14, second positioning pin, 15, support block,

[0032] 2, child clamp, 21, bottom plate, 211, guide column, 212, first positioning hole, 213, second positioning hole, 214, positioning groove, 22, cover plate, 221, guide hole, 222, third positioning hole, 23, third positioning pin,

[0033] 3, positioning assembly, 31, positioning seat, 32, abutting and pressing rod, 321, avoiding groove, 33, driving part, 34, support rod. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0035] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected," "connect," and "positioned" should be understood in a broad sense. For example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; they may refer to internal communication between two components or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0036] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0038] Refer to the following Figures 1 to 4 The parent-child quick-change fixture and processing equipment provided by the utility model are described.

[0039] The processing equipment includes an equipment body and a mother-and-child quick-change fixture. Specifically, the equipment body is any equipment in the prior art for processing workpieces, including but not limited to CNC machine tools, milling machines, drilling machines, grinders, and cutting machines. For example, the equipment body in this embodiment is a CNC machine tool, and the mother-and-child quick-change fixture is clamped on a CNC lathe.

[0040] Reference Figure 1The mother-child quick-change fixture includes a mother base 1 and a sub-clamp 2. The mother base 1 can place the sub-clamp 2, and the sub-clamp 2 can position multiple workpieces. Multiple positioning components 3 are arranged on the mother base 1 along the circumference of the sub-clamp 2, and the positioning components 3 are used to position the sub-clamp 2.

[0041] Specifically, the base 1 in this embodiment is horizontally arranged, and a plurality of support plates 13 are connected to the bottom of the base 1. In this embodiment, two support plates 13 are used as an example. The base 1 is supported by the support plates 13 so that the support plates 13 are in contact with other equipment to protect the base 1 from damage. In addition, the support plates 13 are used to provide space for installing components at the bottom of the base 1 so that other components can be installed. In other embodiments, the base 1 can also be tilted to a certain degree, and the specific angle is not limited.

[0042] Reference Figure 2 and Figure 3 The sub-clamp 2 in this embodiment is arranged in a square shape. In order to enable the sub-clamp 2 to be accurately placed on the mother seat 1 before the positioning component 3 positions it, preferably, a plurality of limit blocks 11 are connected to the surface of the mother seat 1. In this embodiment, six limit blocks 11 are used as an example. The six limit blocks 11 are enclosed on the surface of the mother seat 1 to form a limit area for limiting the sub-clamp 2, so as to preliminarily limit the sub-clamp 2 placed on the surface of the mother seat 1, thereby accurately positioning the placement position of the sub-clamp 2, and preventing the sub-clamp 2 from sliding on the surface of the mother seat 1 during operation.

[0043] Furthermore, a first positioning pin 12 is vertically provided on the mother base 1, connected to the mother base 1, and multiple first positioning pins 12 are provided. In this embodiment, two are used as an example. A first positioning hole 212 is opened on the sub-clamp 2 at a position corresponding to each first positioning pin 12, and the first positioning pin 12 can be plugged into the first positioning hole 212. Thus, the sub-clamp 2 is further limited by the first positioning pin 12, thereby improving the placement accuracy of the sub-clamp 2.

[0044] In addition, the base 1 is provided with a second locating pin 14, which is connected to the base 1. There are multiple second locating pins 14, two of which are used as an example in this embodiment. These second locating pins 14 are located on the same side of the sub-clamp 2. Each second locating pin 14 is provided on the sub-clamp 2 with a locating slot 214, which can be plugged into and mate with the locating slot 214. This not only further limits the position of the sub-clamp 2, but also, both locating slots 214 are provided on one side of the sub-clamp 2, providing a direction identification function and preventing the sub-clamp 2 from being misplaced.

[0045] It should be noted that the surface of the mother seat 1 is also connected to multiple support columns 15, and the sub-clamp 2 is placed on the support columns 15, so that the sub-clamp 2 is supported by multiple support columns 15, leaving a gap between the sub-clamp 2 and the surface of the mother seat 1, making it convenient to take the sub-clamp 2.

[0046] Exemplarily, the sub-clamp 2 includes a base plate 21 and a cover plate 22. The cover plate 22 has a through-hole at its center. The cover plate 22 can be positioned and placed on the side of the base plate 21 facing away from the base 1, so that the cover plate 22 presses a portion of the workpiece against the base plate 21, exposing the workpiece corresponding to the through-hole for machining. A first positioning hole 212 is defined at the bottom of the base plate 21, and a positioning groove 214 is defined on one of the short sides of the base plate 21, extending through the cover plate 22.

[0047] Furthermore, vertical guide posts 211 are connected to the base plate 21. Multiple guide posts 211 are provided, with two being used as an example in this embodiment. The two guide posts 211 are located at two opposing corners of the base plate 21. One guide post 211 is diamond-shaped, and the other is cylindrical. A guide hole 221 is provided on the cover plate 22 corresponding to each guide post 211. The guide posts 211 can be plugged into the guide holes 221, thereby positioning the cover plate 22 on the base plate 21 and preventing it from moving.

[0048] In addition, a second positioning hole 213 is provided on the base plate 21, and there are two second positioning holes 213. The two second positioning holes 213 are respectively located at two corners of the base plate 21 where no guide column 211 is provided; a third positioning hole 222 is provided on the cover plate 22 corresponding to each second positioning hole 213, and the third positioning hole 222 is coaxially arranged with the second positioning hole 213, and a third positioning pin 23 is passed through the interior of each second positioning hole 213, and the third positioning pin 23 passes through the second positioning hole 213 and the third positioning hole 222, further limiting the cover plate 22 so that the four corners of the cover plate 22 are limited.

[0049] Optionally, in some other embodiments, the female base 1 can also match other types of sub-clamps 2, and the specific form is not limited.

[0050] Figure 1 and Figure 4For example, in this embodiment, two positioning components 3 are provided for each side of the sub-clamp 2, that is, a total of eight are provided to form a fixed positioning for the sub-clamp 2. Each positioning component 3 includes a positioning seat 31, a support rod 34, a pressure rod 32 and a driving member 33. The positioning seat 31 is connected to the surface of the mother seat 1. There is a support rod 34 hinged on each positioning seat 31. The middle section of the pressure rod 32 is hinged to the support rod 34, that is, the pressure rod 32 is rotatably connected to the support rod 34, that is, the pressure rod 32 is indirectly rotatably connected to the positioning seat 31, and one end of the pressure rod 32 extends toward the top near the sub-clamp 2. The pressure rod 32 has a first working state in which it presses the sub-clamp 2 away from the mother seat 1 and a second working state in which the pressure on the sub-clamp 2 is released. When the pressure rod 32 is in the second working state, the sub-clamp 2 can be removed in a direction perpendicular to the surface of the mother seat 1.

[0051] The driving member 33 is located on the side of the positioning base 31 away from the sub-clamp 2. The other end of the pressure rod 32 is hinged to the driving member 33. The driving member 33 can drive the pressure rod 32 to rotate, so that the pressure rod 32 switches between the first working state and the second working state. In this embodiment, the driving member 33 is a cylinder. The cylinder body is connected to the bottom of the base 1. The piston rod of the cylinder passes through the base 1 and moves in the vertical direction. The piston rod of the cylinder is hinged to the other end of the pressure rod 32.

[0052] Based on the above, the sub-clamp 2 is placed in the limit area, and the sub-clamp 2 is preliminarily positioned by the first positioning pin 12 and the second positioning pin 14. At this time, the sub-clamp 2 cannot slide on the surface of the mother seat 1; when the piston rods of all cylinders move upward, one end of all the pressure rods 32 is driven to rotate toward the direction close to the sub-clamp 2, so that the pressure rod 32 is in the first working state. At this time, one end of the pressure rod 32 is pressed against the side of the sub-clamp 2 away from the mother seat 1, completing the stable positioning of the sub-clamp 2, so that the sub-clamp 2 cannot move in the direction perpendicular to the surface of the mother seat 1.

[0053] Subsequently, the base 1 can be clamped on the main body of the equipment, and the workpiece clamped on the sub-clamp 2 can be processed. When a batch of workpieces on the sub-clamp 2 are processed and another sub-clamp 2 needs to be replaced, it is only necessary to move the piston rods of all the cylinders downward, which will drive one end of all the pressure rods 32 to rotate away from the sub-clamp 2, so that the pressure rods 32 are in the second working state. At this time, space is left between the multiple pressure rods 32 for the sub-clamp 2 to move in a direction perpendicular to the surface of the base 1, that is, the pressure rods 32 leave the top of the sub-clamp 2, and the sub-clamp 2 will not be hindered by the pressure rods 32 in the process of moving away from the base 1, making it more convenient to pick up the sub-clamp 2. Ultimately, the fixed positioning of the sub-clamp 2 and the convenience of replacing the sub-clamp 2 are taken into account.

[0054] Optionally, in some other embodiments, the supporting rods 34 can be cancelled, the positioning seat 31 is vertically arranged on the female seat 1 directly, and the driving member 33 is hinged to the female seat 1. The driving member 33 can be arranged on the side of the positioning seat 31 close to the sub clamp 2, and can drive the pressing rod 32 to rotate.

[0055] Since the rotating pressing rod 32 presses the sub clamp 2, the line contact is formed between the pressing rod 32 and the sub clamp 2, so that the friction and deformation of the pressing rod 32 and the sub clamp 2 are aggravated. Therefore, in the embodiment, the avoiding groove 321 is arranged at the end of each pressing rod 32 close to the sub clamp 2, and the avoiding groove 321 is arranged on the side of the pressing rod 32 close to the sub clamp 2, so that the plane capable of abutting against the sub clamp 2 is formed at the avoiding groove 321, the contact area between the pressing rod 32 and the sub clamp 2 is increased, the pressing rod 32 and the sub clamp 2 are protected, and the stability of the positioning of the sub clamp 2 is improved.

[0056] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For the ordinary skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the utility model. Here, all the embodiments need not to be exhausted. Any modification, equivalent substitution and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A mother-and-child quick-change fixture, comprising a mother seat (1) and a child fixture (2), wherein the mother seat (1) is capable of placing the child fixture (2), and the child fixture (2) is capable of positioning multiple workpieces, characterized in that: A plurality of positioning components (3) are provided on the female seat (1) along the circumference of the sub-clamp (2), and the positioning components (3) include: Positioning seat (31); a pressing rod (32), the pressing rod (32) being rotatably connected to the positioning seat (31), the pressing rod (32) being capable of rotating to a first working state in which the pressing rod presses the sub-clamp (2) away from the side of the mother seat (1) and a second working state in which the pressing rod (32) is released from pressing the sub-clamp (2), and when the pressing rod (32) is in the second working state, the sub-clamp (2) can be removed in a direction perpendicular to the surface of the mother seat (1); and, A driving member (33) is provided, wherein the driving member (33) is capable of driving the pressing rod (32) to rotate so as to switch the pressing rod (32) between the first working state and the second working state.

2. The quick-change clamp according to claim 1, characterized in that: The positioning component (3) further comprises: A support rod (34), the two ends of which are respectively hinged to the positioning seat (31) and the middle section of the pressing rod (32), and the output shaft of the driving member (33) is rotatably connected to the end of the pressing rod (32) away from the sub-clamp (2).

3. The quick-change clamp according to claim 1, characterized in that: An escape groove (321) is provided at one end of the pressing rod (32) close to the sub-clamp (2), and the escape groove (321) is located on one side of the pressing rod (32) close to the sub-clamp (2).

4. The quick-change clamp according to claim 1, characterized in that: A plurality of limiting blocks (11) are provided on the female seat (1), and the plurality of limiting blocks (11) enclose a limiting area for limiting the sub-clamp (2).

5. The quick-change clamp according to claim 1, characterized in that: The female seat (1) is provided with a first positioning pin (12), and the sub-clamp (2) is provided with a first positioning hole (212), and the first positioning pin (12) can be plugged and matched with the first positioning hole (212).

6. The quick-change clamp according to claim 1, characterized in that: The female seat (1) is provided with a second positioning pin (14), and the sub-clamp (2) is provided with a positioning groove (214), and the second positioning pin (14) can be plugged into and matched with the positioning groove (214).

7. The quick-change clamp according to any one of claims 1 to 6, characterized in that: The sub-clamp (2) comprises: a bottom plate (21); and A cover plate (22) can be positioned and covered on a side of the base plate (21) facing away from the female seat (1).

8. The quick-change clamp according to claim 7, characterized in that: A guide column (211) is provided on the bottom plate (21), and a guide hole (221) is provided on the cover plate (22). The guide column (211) can be plugged into and matched with the guide hole (221).

9. The quick-change clamp according to claim 7, characterized in that: A second positioning hole (213) is provided on the bottom plate (21), a third positioning hole (222) is provided on the cover plate (22), and a third positioning pin (23) is passed through the interior of the second positioning hole (213).

10. Processing equipment, comprising an equipment body, characterized in that: The processing equipment also includes a mother-and-child quick-change fixture as described in any one of claims 1 to 9, and the mother-and-child quick-change fixture is connected to the equipment body.

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