Clamp and machining equipment

Abstract

The clamp comprises a base, a first cantilever, a second cantilever, a first positioning assembly and a second positioning assembly, the first positioning assembly is arranged at the ends, close to the base, of the first cantilever and the second cantilever, and the second positioning assembly is arranged at the other ends of the first cantilever and the second cantilever. The first positioning assembly comprises a first positioning seat and a first positioning pin arranged on the first positioning seat so as to position one end of a workpiece. The second positioning assembly comprises a second positioning seat and a second positioning pin elastically connected with the second positioning seat so as to position the other end of the workpiece. When a workpiece is installed, even if the workpiece tilts, the second positioning pin can be in butt joint with the positioning hole of the workpiece, deviation of the workpiece is avoided, the workpiece is erected through the arrangement of the first cantilever and the second cantilever, waste generated in machining has a certain falling space, and the waste is prevented from being accumulated on the clamp.

Description

Technical Field

[0001] The present application relates to the field of mechanical processing, and in particular to a fixture and processing equipment. Background Art

[0002] Some laser cutting equipment is often used to cut workpieces. Common workpieces are plates, sheet metal parts, die-casting workpieces, etc. For some die-casting parts with more complex structures, specific tooling and fixtures are required for positioning. After the die-casting parts are ejected from the mold, their temperature changes greatly and they deform greatly during the cooling process. The positioning surface deviates from the design standard due to manufacturing differences, so it cannot be guaranteed that the positioning surface fits the reference surface of the tooling and fixture, and the workpiece is prone to warping. After positioning one end of the workpiece with a positioning pin, the height of the positioning hole at the other end deviates. A fixed positioning pin is used here. Since the height cannot be adjusted, it may not be inserted into the corresponding positioning hole, and the virtual positioning of the workpiece is prone to deviation. Utility Model Content

[0003] The present application proposes a clamp and a processing device, which are intended to solve the problem that the current tooling fixtures are prone to false positioning and deviation when clamping workpieces.

[0004] The present application proposes a clamp, comprising:

[0005] A cantilever assembly, comprising a first cantilever and a second cantilever arranged at intervals, wherein one end of the first cantilever and one end of the second cantilever are respectively arranged on the same side of the base;

[0006] A first positioning assembly includes a first positioning seat disposed on the first cantilever and the second cantilever, and a first positioning pin disposed on the first positioning seat, wherein the first positioning seat is disposed close to the base;

[0007] A second positioning assembly includes a second positioning seat disposed on the first cantilever and the second cantilever, and a second positioning pin elastically connected to the second positioning seat, wherein the second positioning seat is disposed at one end of the first cantilever and the second cantilever away from the base;

[0008] The first positioning seat and the second positioning seat are used to receive the workpiece.

[0009] In some embodiments, the clamp further includes a clamping mechanism, which includes a clamping drive member disposed on the first cantilever and the second cantilever, and a clamping member connected to the clamping drive member, wherein the clamping drive member is used to drive the clamping member to move to hold the workpiece.

[0010] In some embodiments, the top of the first positioning seat is used to receive a workpiece, one end of the first positioning pin is fixed to the top of the first positioning seat, and the length of the section exceeding the top of the first positioning seat is adjustable.

[0011] In some embodiments, the first positioning seat includes a first seat body, a first mounting member disposed on the first seat body, and a clamp disposed on the first mounting member, wherein the clamp is used to fix the first positioning pin.

[0012] In some embodiments, a mounting hole is provided at the upper end of the second positioning seat, and the second positioning assembly further comprises an elastic member disposed in the mounting hole, and a limiting member disposed on the second positioning seat;

[0013] The second positioning pin is arranged in the mounting hole and abuts against the elastic member. The side wall of the second positioning pin is further provided with a strip hole, and one end of the limiting member is located in the strip hole.

[0014] In some embodiments, the clamp also includes a third positioning assembly arranged on the base, the third positioning assembly includes a third positioning seat arranged between the first cantilever and the second cantilever, and a third positioning pin elastically connected to the third positioning seat, and the top of the third positioning seat is higher than the top of the first positioning seat.

[0015] In some embodiments, the clamp includes four sets of the clamping mechanisms, and the clamping mechanisms are respectively arranged at the ends of the first cantilever and the second cantilever;

[0016] In the two sets of clamping mechanisms away from the base, the clamping drive member includes a flip cylinder, the clamping member includes a connecting part connected to the flip cylinder, and a supporting part arranged at the end of the connecting part, the end of the supporting part is used to support the workpiece, and the connecting part and the supporting part have a certain angle.

[0017] In some embodiments, the distance between the first cantilever and the second cantilever is adjustable, and the positions of the first positioning assembly and the second positioning assembly are adjustable.

[0018] In some embodiments, the top end of the second positioning pin is spherical.

[0019] The present application also proposes a processing device, comprising the above-mentioned fixture and a machine platform for installing the fixture.

[0020] The fixture in the present application includes a base, a first cantilever, a second cantilever, a first positioning assembly and a second positioning assembly, wherein the first positioning assembly is arranged at one end of the first cantilever and the second cantilever close to the base, and the second positioning assembly is arranged at the other end of the first cantilever and the second cantilever. The first positioning assembly includes a first positioning seat and a first positioning pin arranged on the first positioning seat to position one end of the workpiece; the second positioning assembly includes a second positioning seat and a second positioning pin elastically connected to the second positioning seat to position the other end of the workpiece. When installing the workpiece, even if the workpiece is tilted, the second positioning pin can dock with the positioning hole of the workpiece to prevent the workpiece from deviating. The setting of the cantilever also allows the workpiece to be raised, so that the waste generated by the processing has a certain falling space to avoid accumulation on the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a clamp in one embodiment of the present application;

[0022] Figure 2 for Figure 1 A schematic structural diagram of the first positioning assembly in the embodiment;

[0023] Figure 3 for Figure 1 A schematic structural diagram of the second positioning assembly in the embodiment.

[0024] Description of labels:

[0025] 1. Base; 211. First cantilever; 212. Second cantilever; 22. Mounting plate; 23. Mounting seat; 3. First positioning assembly; 31. First seat body; 32. First positioning pin; 33. First mounting member; 34. Hoop; 4. Second positioning assembly; 41. Second positioning seat; 42. Second positioning pin; 43. Elastic member; 44. Limiting member; 5. Clamping mechanism; 51. Mounting frame; 52. Clamping drive member; 53. Clamping member.

[0026] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the scheme in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments in the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0029] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0030] In addition, the descriptions of "first", "second", etc. in this application are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0031] The present application embodiment provides a clamp, referring to Figures 1 to 3 The fixture comprises: a base 1; a cantilever assembly, comprising a first cantilever 211 and a second cantilever 212 arranged at intervals, one end of the first cantilever 211 and one end of the second cantilever 212 being arranged on the same side of the base 1 respectively; a first positioning assembly 3, comprising a first positioning seat arranged on the first cantilever 211 and the second cantilever 212, and a first positioning pin 32 arranged on the first positioning seat; the first positioning seat is arranged close to the base 1; a second positioning assembly 4, comprising a second positioning seat 41 arranged on the first cantilever 211 and the second cantilever 212, and a second positioning pin 42 elastically connected to the second positioning seat 41. The second positioning seat 41 is arranged at one end of the first cantilever 211 and the second cantilever 212 away from the base 1; the first positioning seat and the second positioning seat 41 are used to receive the workpiece.

[0032] The fixture in the embodiment of the present application includes a base 1, a first cantilever 211, a second cantilever 212, a first positioning assembly 3 and a second positioning assembly 4. The first positioning assembly 3 is arranged at one end of the first cantilever 211 and the second cantilever 212 close to the base 1, and the second positioning assembly 4 is arranged at the other end of the first cantilever 211 and the second cantilever 212. The first positioning assembly 3 includes a first positioning seat and a first positioning pin 32 arranged on the first positioning seat to position one end of the workpiece; the second positioning assembly 4 includes a second positioning seat 41 and a second positioning pin 42 elastically connected to the second positioning seat 41 to position the other end of the workpiece. When installing the workpiece, the workpiece is supported by the first positioning seat and the second positioning seat 41, and the part of the positioning holes on the workpiece is first docked with the corresponding first positioning pin 32 to position one end of the workpiece. Since there is still a certain gap between the locating pin and the locating hole, and the workpiece has a certain deformation, the other end of the workpiece will still be tilted and deviated. The structure of the floating setting of the second locating pin 42 can also dock with the corresponding positioning hole of the workpiece to prevent the workpiece from deviating. That is, no matter how the position of the positioning hole in the height direction changes, the second positioning pin 42 can always be docked with the corresponding positioning hole, so that the second positioning pin 42 can also position the other end of the workpiece.

[0033] In some embodiments, reference Figure 1The fixture further comprises a clamping mechanism 5, which comprises a clamping driving member 52 arranged on the first cantilever 211 and the second cantilever 212 and a clamping member 53 connected to the clamping driving member 52, wherein the clamping driving member 52 is used to drive the clamping member 53 to move to hold the workpiece. In this embodiment, the first positioning assembly 3 and the second positioning assembly 4 are respectively arranged at the two ends of the first cantilever 211 and the second cantilever 212, correspondingly forming four groups of positioning assemblies, and the clamping mechanism 5 is respectively arranged on one side of the four groups of positioning assemblies to apply pressure to the upper part of the four receiving areas of the workpiece to clamp the workpiece. The clamping driving member 52 can be selected from a cylinder, and the clamping member 53 is arranged at the driving end of the cylinder. The cylinder can be selected from a flip cylinder, and a clamping cylinder with a certain rotation angle when the push rod is extended or retracted can also be selected. The flipping amount of the flipping cylinder and the rotation amount of the clamping cylinder centered on the push rod enable the clamping member 53 to avoid the pick-up and placement path of the workpiece after it is away from the workpiece. In the present embodiment, the clamping mechanism 5 further comprises a mounting frame 51 arranged on both sides of the first cantilever 211 and the second cantilever 212 which are away from each other, and a clamping driving member 52 is arranged on the mounting frame 51 and is located outside the first cantilever 211 and the second cantilever 212 and is higher than the first cantilever 211 and the second cantilever 212. Such an arrangement enables the clamping driving member 52 to avoid the path of taking and placing the workpiece. The clamping driving member 52 can be optionally a flip cylinder, and the clamping members 53 of the two groups of clamping mechanisms 5 arranged away from the base 1 include a connecting portion connected to the flip cylinder, and a supporting portion arranged at the end of the connecting portion, the end of the supporting portion is used to support the workpiece, and the connecting portion and the supporting portion have a certain angle. In the present embodiment, due to the complex structure of the workpiece, the flipping portion of the flipping cylinder will be higher than the workpiece by a distance, and the supporting portion is arranged to compensate for the height difference between the flipping portion and the workpiece, so as to ensure that the supporting portion can be supported by the workpiece to clamp the workpiece. After the clamp contacts and locks the workpiece, due to a certain angle between the connecting portion and the abutting portion, the abutting portion can be flipped at a certain angle to the side where the flip cylinder is away from the workpiece, thereby avoiding interference during pick-up and placement.

[0034] In some embodiments, reference Figure 1 and Figure 2, the top of the first positioning seat is used to receive the workpiece, one end of the first positioning pin 32 is fixed to the top of the first positioning seat, and the length of the section beyond the top of the first positioning seat is adjustable. Specifically, the first positioning seat includes a first seat body 31, a first mounting member 33 provided on the first seat body 31, and a clamp 34 provided on the first mounting member 33, and the clamp 34 is used to fix the first positioning pin 32. The clamp 34 includes two arc-shaped members embracing each other, one of which is fixedly provided on the lower surface of the first mounting member 33 and extends into the first seat body 31. The other half of the arc-shaped member is fixedly connected to the arc-shaped member by screws, and the first positioning pin 32 is fixed between the two arc-shaped members and accommodated in the accommodation hole of the first seat body 31 with the clamp 34. By loosening the screws of the clamp 34, the extension length of the first positioning pin 32 can be adjusted to dock with positioning holes of different heights.

[0035] In some embodiments, reference Figure 3 The second positioning seat 41 is provided with a mounting hole at its upper end. The second positioning assembly 4 also includes an elastic member 43 disposed in the mounting hole, and a stopper 44 disposed on the second positioning seat 41. The second positioning pin 42 is disposed in the mounting hole and abuts against the elastic member 43. The side wall of the second positioning pin 42 is also provided with a strip hole, and one end of the stopper 44 is located in the strip hole. The strip hole is arranged along the length direction of the second pin body. One end of the stopper 44 is in the mounting hole and extends into the strip hole to limit the floating stroke of the second strip hole. The top end of the second positioning pin 42 is arranged in a spherical shape, so the second positioning pin 42 is a ball pin, and the ball pin has a certain guiding effect when docking with the positioning hole of the workpiece.

[0036] In some embodiments, reference Figure 1 The fixture further includes a third positioning assembly disposed on the base 1, the third positioning assembly includes a third positioning seat disposed between the first cantilever 211 and the second cantilever 212, and a third positioning pin elastically connected to the third positioning seat, and the top of the third positioning seat is higher than the top of the first positioning seat. In this embodiment, a mounting seat 23 is disposed on one side of the base 1 provided with the cantilever assembly, and the mounting seat 23 is located between the first cantilever 211 and the second cantilever 212. The third positioning assembly includes a third positioning seat and a third positioning pin disposed on the mounting seat 23. The structure of the third positioning assembly is the same as that of the second positioning assembly 4, and both use a floating ball pin. The third positioning seat is used to receive the workpiece, and its height is higher than the two first positioning seats so as to dock with the convex area in the middle of one end of the workpiece to provide a certain supporting force.

[0037] In some embodiments, reference Figure 1, the spacing between the first cantilever 211 and the second cantilever 212 is adjustable, and the position of the first positioning assembly 3 and the second positioning assembly 4 is adjustable. In this embodiment, a row of screw holes is provided on the side of the base 1 where the cantilever assembly is provided, and a fixing hole is provided at the end of the cantilever assembly that is connected to the base 1. The cantilever assembly can be locked to the base 1 by screws, and of course, the screws passing through the fixing holes can be connected to the screw holes at different positions, which can be used to adjust the spacing between the first cantilever 211 and the second cantilever 212.

[0038] Similarly, the first cantilever 211 and the second cantilever 212 are also provided with one or more rows of screw holes arranged along the length direction thereof, and the first positioning seat and the second positioning seat 41 are also screwed to the first cantilever 211 and the second cantilever 212 by screws, and the provision of multiple screw holes can be used to adjust the position of the first positioning seat and the second positioning seat 41. Of course, a mounting plate 22 can also be provided on the cantilever assembly, and the two can be screwed together, and the second positioning seat 41 can be screwed to the mounting plate 22 by screws, and the mounting plate 22 is also provided with multiple screw holes, and the position of the mounting plate 22 can also be adjusted. The position of the mounting plate 22 on the cantilever assembly can also be adjusted.

[0039] The present application also proposes a processing device, including the above-mentioned fixture and a machine platform for installing the fixture. In this embodiment, the processing device can be a laser cutting machine, and the processing device also includes a mechanical arm arranged on the machine platform and a laser cutting nozzle arranged at the free end of the mechanical arm, and the cutting nozzle can move with the mechanical arm to cut the flash and the mold line formed during the die-casting of the workpiece.

[0040] In the embodiment of the present application, the principle of the clamp is as follows:

[0041] The fixture in the present application includes a base 1, a first cantilever 211, a second cantilever 212, a first positioning assembly 3 and a second positioning assembly 4, wherein the first positioning assembly 3 is arranged at one end of the first cantilever 211 and the second cantilever 212 close to the base 1, and the second positioning assembly 4 is arranged at the other end of the first cantilever 211 and the second cantilever 212. The first positioning assembly 3 includes a first positioning seat and a first positioning pin 32 arranged on the first positioning seat to position one end of the workpiece; the second positioning assembly 4 includes a second positioning seat 41 and a second positioning pin 42 elastically connected to the second positioning seat 41 to position the other end of the workpiece. When installing the workpiece, even if the workpiece is tilted, the second positioning pin 42 can dock with the positioning hole of the workpiece to prevent the workpiece from deviating.

[0042] The above are only partial or preferred embodiments of the present application. Neither the text nor the drawings can limit the scope of protection of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the overall concept of the present application, or direct / indirect application in other related technical fields are included in the scope of protection of the present application.

Claims

1. A clamp, characterized in that: include: Pedestal; A cantilever assembly, comprising a first cantilever and a second cantilever arranged at intervals, wherein one end of the first cantilever and one end of the second cantilever are respectively arranged on the same side of the base; A first positioning assembly includes a first positioning seat disposed on the first cantilever and the second cantilever, and a first positioning pin disposed on the first positioning seat, wherein the first positioning seat is disposed close to the base; A second positioning assembly includes a second positioning seat disposed on the first cantilever and the second cantilever, and a second positioning pin elastically connected to the second positioning seat, wherein the second positioning seat is disposed at one end of the first cantilever and the second cantilever away from the base; The first positioning seat and the second positioning seat are used to receive the workpiece.

2. The clamp according to claim 1, characterized in that: The clamp further comprises a clamping mechanism, wherein the clamping mechanism comprises a clamping driving member disposed on the first cantilever and the second cantilever, and a clamping member connected to the clamping driving member, wherein the clamping driving member is used to drive the clamping member to move so as to abut against a workpiece.

3. The clamp according to claim 2, characterized in that: The top of the first positioning seat is used to receive the workpiece, one end of the first positioning pin is fixed to the top of the first positioning seat, and the length of the section exceeding the top of the first positioning seat is adjustable.

4. The clamp according to claim 3, characterized in that: The first positioning seat includes a first seat body, a first mounting member arranged on the first seat body, and a clamping hoop arranged on the first mounting member, wherein the clamping hoop is used to fix the first positioning pin.

5. The clamp according to claim 1, characterized in that: The upper end of the second positioning seat is provided with a mounting hole, and the second positioning assembly further comprises an elastic member arranged in the mounting hole, and a limiting member arranged on the second positioning seat; The second positioning pin is arranged in the mounting hole and abuts against the elastic member. The side wall of the second positioning pin is further provided with a strip hole, and one end of the limiting member is located in the strip hole.

6. The clamp according to claim 2, characterized in that: The clamp also includes a third positioning assembly arranged on the base, the third positioning assembly includes a third positioning seat arranged between the first cantilever and the second cantilever, and a third positioning pin elastically connected to the third positioning seat, and the top of the third positioning seat is higher than the top of the first positioning seat.

7. The clamp according to claim 6, characterized in that The clamp comprises four groups of clamping mechanisms, which are respectively arranged at the ends of the first cantilever and the second cantilever; In the two sets of clamping mechanisms away from the base, the clamping drive member includes a flip cylinder, the clamping member includes a connecting part connected to the flip cylinder, and a supporting part arranged at the end of the connecting part, the end of the supporting part is used to support the workpiece, and the connecting part and the supporting part have a certain angle.

8. The clamp according to claim 1, characterized in that: The distance between the first cantilever and the second cantilever is adjustable, and the positions of the first positioning assembly and the second positioning assembly are adjustable.

9. The clamp according to any one of claims 1 to 8, characterized in that: The top end of the second positioning pin is spherical.

10. A processing equipment, characterized in that: The invention comprises the clamp according to any one of claims 1 to 9 and a machine platform for installing the clamp.

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