A clamp and numerical control machining equipment

Abstract

The application discloses a clamp and numerical control machining equipment, the clamp comprises a first mounting seat; a fixing part, the fixing part is installed on the first mounting seat, the fixing part is provided with a first supporting part, and the first supporting part is suitable for supporting a workpiece; a movable part and a first driving part, the first driving part is in transmission connection with the movable part, the first driving part can drive the movable part to move close to the first supporting part, so that the workpiece is pressed on the first supporting part; and a positioning pin, one end of the positioning pin is installed on the first mounting seat or the fixing part, and the other end is suitable for positioning the workpiece. The workpiece is clamped on the fixing part by the first driving part and the movable part, and then the workpiece is positioned by cooperating with the positioning pin, so that the workpiece can be stably and reliably clamped, the design requirement is met, and the clamping efficiency of the workpiece is high.

Description

Technical Field

[0001] This invention relates to the field of CNC machining technology, and more specifically, to a fixture and CNC machining equipment. Background Technology

[0002] In related technologies, the process flow of CNC machining based on fixed cutting parameters is as follows: First, a 3D model of the part is completed using CRWO software. Then, a machining program with fixed cutting parameters is generated using CAM software. Subsequently, the program is imported into the CNC machine, and the CNC machine completes the machining according to the preset cutting speed, feed rate, depth of cut, and other parameters in the machining program. In the clamping stage, manual bolt clamping is generally used to clamp and fix the workpiece. However, due to wear and aging of fixture components, such as loosening of clamping bolts, the actual clamping force of the fixture on the workpiece is often insufficient, failing to meet design requirements, and the clamping efficiency is low.

[0003] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Summary of the Invention

[0004] One object of the present invention is to provide a new technical solution for a clamp.

[0005] According to a first aspect of the present invention, a clamp is provided. The clamp includes: First mounting base; A fastener is mounted on the first mounting base, and the fastener is provided with a first support portion, which is adapted to support the workpiece. The movable component and the first driving component are connected to the movable component. The first driving component can drive the movable component to move closer to the first support portion so as to press the workpiece against the first support portion. A positioning pin, one end of which is installed on the first mounting base or fixing member, and the other end of which is used to position the workpiece.

[0006] Optionally, one end of the positioning pin is disposed on the fixing member, and the other end protrudes from the first support portion.

[0007] Optionally, the positioning pin includes a first end and a second end disposed opposite to each other, the first end being mounted on the first mounting base or fixing member, and the second end being provided with a guide surface.

[0008] Optionally, the guide surface is a tapered surface.

[0009] Optionally, the positioning pins are spaced in multiples.

[0010] Optionally, the first support portion and the movable component are provided in multiples, and the movable component is provided in a one-to-one correspondence with the first support portion.

[0011] Optionally, the first support portion is disposed on the first end face of the fixed member facing the movable member, and the first support portion protrudes from the first end face.

[0012] Optionally, it also includes a support member, which is mounted on the first mounting base and is adapted to support the workpiece.

[0013] Optionally, the first driving element includes a pneumatic driving element or a hydraulic driving element.

[0014] Optionally, it further includes a second driving member, which is tractively connected to the first mounting base and is capable of driving the first mounting base to rotate.

[0015] According to a second aspect of the present invention, a CNC machining apparatus is provided. This CNC machining apparatus includes the fixture described in the above embodiments.

[0016] One technical advantage of this application is that the first driving component drives the movable component to clamp the workpiece to the fixed component, and then the positioning pin is used to position the workpiece, thereby enabling stable and reliable clamping of the workpiece to meet the design requirements, and the workpiece clamping efficiency is high.

[0017] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0019] Figure 1 This is a schematic diagram of the structure of a clamp according to an embodiment of this application.

[0020] Figure 2 yes Figure 1 The enlarged view of point A is shown.

[0021] Figure 3 yes Figure 1 The enlarged view of point B is shown.

[0022] Figure 4 This is a partial structural schematic diagram of a fixture according to an embodiment of this application.

[0023] Figure 5 yes Figure 4 The enlarged view at point C is shown.

[0024] Figure label: 1. First mounting base; 2. Fixing component; 21. First support part; 22. First end face; 23. Third support part; 3. Movable part; 4. Locating pin; 41. Guide surface; 5. Second driving component; 6. Support component; 61. Second support part; 7. Second mounting base; 8. Third mounting base; 81. Locating key; 82. Mounting groove; 9. Fourth mounting base; 10. Workpiece. Detailed Implementation

[0025] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0026] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0027] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0028] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0030] According to one embodiment of this application, a clamp is provided. Figures 1 to 5 As shown, the fixture includes a first mounting base 1; a fixing member 2, which is mounted on the first mounting base 1 and has a first support portion 21 for supporting a workpiece 10; a movable member 3 and a first driving member, wherein the first driving member is throttledly connected to the movable member 3 and can drive the movable member 3 to move closer to the first support portion 21 to press the workpiece 10 against the first support portion 21; and a positioning pin 4, one end of which is mounted on the first mounting base 1 or the fixing member 2, and the other end of which is used to position the workpiece 10.

[0031] like Figure 2 and Figure 5As shown, in this example, the fixing member 2 is fixedly installed on the first mounting base 1. The fixing member 2 is provided with a first support portion 21 for supporting the workpiece 10, that is, the workpiece 10 can be placed on the first support portion 21. The first driving member can drive the movable member 3 to move relative to the first support portion 21. That is, after the workpiece 10 is placed on the first support portion 21, the movable member 3 moves towards the first support portion 21 and abuts against the end of the workpiece 10 away from the first support portion 21, thereby pressing the workpiece 10 against the first support portion 21. The movable member 3 cooperates with the fixing member 2 to clamp the workpiece 10.

[0032] Furthermore, one end of the positioning pin 4 is installed on the first mounting base 1 or the fixing member 2, and the other end is used to position the workpiece 10. That is, one end of the positioning pin 4 can be fixedly installed on the first mounting base 1 or the fixing member 2, for example, the positioning pin 4 can be screwed to the first mounting base 1 or the fixing member 2. The other end of the positioning pin 4 can be inserted into the hole of the workpiece 10, thereby enabling the workpiece 10 to be positioned.

[0033] In this example, the first driving component drives the movable component 3 to clamp the workpiece 10 to the fixed component 2, and then the positioning pin 4 is used to position the workpiece 10, so that the workpiece 10 can be clamped stably and reliably to meet the design requirements, and the clamping efficiency of the workpiece 10 is high.

[0034] It should be noted that the first mounting base 1 can be a mounting plate structure. The fastener 2 can be integrally formed with the first mounting base 1, or the fastener 2 can be welded, snap-fitted, or screwed to the first mounting base 1. Those skilled in the art can determine the appropriate method based on the actual situation, and no specific limitation is made here.

[0035] In this example, the first driving component can be mounted on the first mounting base 1. The first driving component can be connected to the movable component 3 via a drive shaft. The first driving component includes a pneumatic driving component or a hydraulic driving component. That is, the first driving component can be a pneumatic driving component powered by compressed air, and the clamp is a pneumatic clamp; or, the first driving component can also be a hydraulic driving component powered by hydraulic oil, and the clamp is a hydraulic clamp. Those skilled in the art can determine the appropriate method based on the actual situation, and no specific limitations are made here.

[0036] In this example, the fixture of this application is a pneumatic fixture, which, in conjunction with the linkage design of the positioning pin 4, replaces the manual bolt clamping method of the prior art. This avoids the errors and loosening risks caused by manual operation, and significantly reduces the failure rate. Furthermore, the increased automation eliminates the steps of manually tightening bolts and manually calibrating positioning as in the prior art, reducing the single clamping time from 3 minutes to 30 seconds, significantly improving production efficiency while reducing the scrap rate caused by manual operation, effectively lowering labor and material costs in the production process.

[0037] It should be noted that workpiece 10 can be a motorcycle engine housing, etc., and those skilled in the art can determine it according to the actual situation, without making specific limitations here.

[0038] In one example, such as Figure 5 As shown, one end of the positioning pin 4 is disposed on the fixing member 2, and the other end protrudes from the first support part 21.

[0039] In this example, one end of the positioning pin 4 is mounted to the fixing member 2 and is located on one side of the first support portion 21. The other end of the positioning pin 4 protrudes from the first support portion 21, that is, the height of the positioning pin 4 is higher than the first support portion 21, thus protruding from the first support portion 21. Figure 2 As shown, the workpiece 10 has a hole. When the workpiece 10 is placed on the first support 21, the part of the positioning pin 4 protruding from the first support 21 can be inserted into the hole of the workpiece 10 to achieve a good positioning effect on the workpiece 10.

[0040] In this example, the fastener 2 may be provided with a mounting groove 82, one end of the positioning pin 4 can be inserted into the mounting groove 82 and fixedly installed in the mounting groove 82, and the other end protrudes out of the mounting groove 82.

[0041] It should be noted that the locating pin 4 can be made of stainless steel or other metals, and can be cylindrical in shape. Of course, those skilled in the art can determine the specific material and shape of the locating pin 4 according to the actual situation, and no specific limitations are made here.

[0042] It should also be noted that one end of the positioning pin 4 can be installed on the first mounting base 1, and the other end extends away from the first mounting base 1 and protrudes above the first support portion 21, that is, it protrudes from the first support portion 21.

[0043] In one example, the positioning pin 4 includes a first end and a second end that are disposed opposite to each other. The first end is mounted on the first mounting base 1 or the fixing member 2, and the second end is provided with a guide surface 41.

[0044] In this example, the two ends of the locating pin 4 along its length are a first end and a second end, respectively. The first end is the mounting end, used to connect with the first mounting base 1 or the fixing member 2. The second end is the locating end, used to insert the workpiece 10 to position the workpiece 10. The second end is provided with a guide surface 41, which can play a guiding role during the insertion of the workpiece 10 or the removal of the workpiece 10 from the locating pin 4, thereby improving the clamping and disassembly efficiency of the workpiece 10.

[0045] like Figure 2 and Figure 5As shown, in this example, the guide surface 41 is a conical surface. That is, the second end of the locating pin 4 is a conical head, and the conical surface constitutes the guide surface 41. The outer diameter of the second end of the conical structure gradually decreases from bottom to top, so that the second end can be easily inserted into the hole of the workpiece 10. When the workpiece 10 needs to be removed from the locating pin 4, the workpiece 10 can also move upward smoothly, thereby facilitating removal from the fixture.

[0046] It should be noted that if the positioning structure of workpiece 10 is a hole, then the guide surface 41 can be set as a conical surface. Alternatively, the guide surface 41 can also be other shapes, such as an inclined plane, etc. The guide surface 41 can correspond to the positioning structure on workpiece 10. Those skilled in the art can determine it according to the actual situation, and no specific limitation is made here.

[0047] In one example, multiple positioning pins 4 are spaced apart. Multiple positioning pins 4 can simultaneously position the workpiece 10, thereby improving the positioning effect. For example, two, three, or four positioning pins 4 can be set, which can be determined by those skilled in the art according to the actual situation. For example, the number of positioning pins 4 can correspond to the number of positioning structures on the workpiece 10, and no specific limitation is made here.

[0048] In one example, such as Figure 4 and Figure 5 As shown, the first support part 21 and the movable part 3 are provided in multiples, and the movable part 3 is provided in a one-to-one correspondence with the first support part 21.

[0049] In this example, the movable part 3 is arranged in a one-to-one correspondence with the first support part 21, that is, each first support part 21 is provided with one movable part 3. Multiple first support parts 21 and movable parts 3 are arranged circumferentially, meaning that when clamping the workpiece 10, multiple movable parts 3 are distributed circumferentially along the workpiece 10, thereby improving the stability and reliability of clamping the workpiece 10. For example, two, three, four, or five first support parts 21 and movable parts 3 can be provided respectively, as can be determined by those skilled in the art according to the actual situation, and no specific limitation is made here.

[0050] It should be noted that each movable part 3 may be provided with one first support part 21, or multiple first support parts 21 may be provided on one movable part 3. Those skilled in the art can decide according to the actual situation, and no specific limitation is made here.

[0051] In one example, such as Figure 5 As shown, the first support portion 21 is provided on the first end face 22 of the fixed member 2 facing the movable member 3, and the first support portion 21 protrudes from the first end face 22.

[0052] In this example, the bottom end of the fixing member 2 is disposed on the first mounting base 1, and the top end of the fixing member 2 opposite to the first mounting base 1 is a first end face 22. The first support part 21 is a protruding structure disposed on the first end face 22. The workpiece 10 can be supported on the first support part 21, and the movable part 3 corresponds to the first support part 21, which can reduce the contact area with the fixing member 2. This helps to prevent the area of ​​contact between the workpiece 10 and the first support part 21 from shifting, so that the workpiece 10 can fit tightly with the first support part 21 and the movable part 3, improving the stability of clamping.

[0053] It should be noted that the first support part 21 can be integrally formed with the fastener 2, or the first support part 21 can be welded, snapped, or screwed to the fastener 2. Those skilled in the art can decide according to the actual situation, and no specific limitation is made here.

[0054] In this example, before placing the workpiece 10 onto the first support 21, the movable member 3 can rotate to one side of the first support 21 to clear the space above the first support 21, thus facilitating the smooth placement of the workpiece 10 onto the first support 21. After the workpiece 10 is placed on the first support 21, the movable member 3 can rotate to directly above the first support 21, and then the first driving member drives the movable member 3 downward to press the workpiece 10. After the workpiece 10 is processed, the first driving member drives the movable member 3 upward to detach from the workpiece 10, and then the movable member 3 can rotate to one side to clear the workpiece 10, facilitating its easy removal and the next loading. The movable member 3 can be rotated by a driving mechanism such as a motor.

[0055] In one example, such as Figure 4 and Figure 5 As shown, the fixture also includes a support member 6, which is mounted on the first mounting base 1 and is adapted to support the workpiece 10.

[0056] In this example, the support member 6 is disposed on the first mounting base 1 and located on one side of the fixing member 2. The support member 6 can support the workpiece 10. The support member 6 cooperates with the first support part 21. That is, the workpiece 10 is placed on the support member 6 and the first support part 21, which helps to improve the stability of the workpiece 10 clamping.

[0057] like Figure 5 As shown, in this example, the support member 6 is provided with a second support portion 61, the workpiece 10 contacts the second support portion 61, and the second support portion 61 cooperates with the first support portion 21 to support the workpiece 10. The second support portion 61 can be a protruding structure provided on the support member 6, and the second support portion 61 is flush with the first support portion 21.

[0058] It should be noted that the second support part 61 can be integrally formed with the support member 6, or the second support part 61 can be welded, snapped, or screwed to the support member 6. Those skilled in the art can decide according to the actual situation, and no specific limitation is made here.

[0059] It should also be noted that the support member 6 can be integrally formed with the first mounting base 1, or the support member 6 can be welded, snapped, or screwed to the first mounting base 1. Those skilled in the art can decide according to the actual situation, and no specific limitation is made here.

[0060] like Figure 5 As shown, in this example, the first end face 22 of the fastener 2 may also be provided with a third support portion 23, which is used to support the workpiece 10, that is, the workpiece 10 can be placed on the third support portion 23. The third support portion 23 may be a protruding structure and is flush with the first support portion 21.

[0061] It should be noted that the third support part 23 can be integrally formed with the fastener 2, or the third support part 23 can be welded, snapped, or screwed to the fastener 2. Those skilled in the art can decide according to the actual situation, and no specific limitation is made here.

[0062] In one example, such as Figure 1 and Figure 4 As shown, the fixture also includes a second driving member 5, which is connected to the first mounting base 1 and can drive the first mounting base 1 to rotate.

[0063] In this example, the second driving component 5 is a turntable, and the first mounting base 1 is mounted on the second driving component 5 and is connected to the second driving component 5 in a transmission manner. The second driving component 5 can drive the first mounting base 1 to rotate, thereby driving the clamped workpiece 10 to rotate, so as to adjust the machining angle of the workpiece 10, which is beneficial for machining the workpiece 10.

[0064] For example, the second driving component 5 can be a rotating motor or other driving mechanism. Those skilled in the art can determine this according to the actual situation, and no specific limitation is made here.

[0065] like Figure 1 , Figure 3 and Figure 4 As shown, the fixture also includes a second mounting base 7 and a third mounting base 8. The second driving component 5 can be mounted to the second mounting base 7 by means of fastener screws or other methods. The second mounting base 7 can be mounted to the point mounting base by means of fastener screws or other methods. The third mounting base 8 is provided with a mounting groove 82, and a positioning key 81 is provided within the mounting groove 82. The second mounting base 7 is correspondingly provided with a positioning groove. During assembly, the positioning key 81 can be inserted into the positioning groove to provide a positioning effect for the second mounting base 7, thereby improving assembly accuracy and efficiency.

[0066] like Figure 1 As shown, in this example, the fixture also includes a fourth mounting base 9, which can be a machine tool. The third mounting base 8 can be installed on the fourth mounting base 9 by means of fastener screws or other methods. The second mounting base 7, the third mounting base 8, and the fourth mounting base 9 can all be configured as plate structures. Of course, the specific structure and assembly method of the second mounting base 7, the third mounting base 8, and the fourth mounting base 9 can be determined by those skilled in the art according to the actual situation, and no specific limitations are made here.

[0067] According to another embodiment of this application, a CNC machining equipment is provided, which includes the fixture described in the above embodiment. The fixture includes a first mounting base 1; a fixing member 2, mounted on the first mounting base 1, the fixing member 2 having a first support portion 21 suitable for supporting a workpiece 10; a movable member 3 and a first driving member, the first driving member being throttledly connected to the movable member 3, the first driving member being able to drive the movable member 3 to move closer to the first support portion 21 to press the workpiece 10 against the first support portion 21; and a positioning pin 4, one end of the positioning pin 4 being mounted on the first mounting base 1 or the fixing member 2, and the other end being suitable for positioning the workpiece 10. The first driving member drives the movable member 3 to clamp the workpiece 10 against the fixing member 2, and then the positioning pin 4 is used to position the workpiece 10, thereby stably and reliably clamping the workpiece 10 to meet design requirements, improving the machining accuracy of the workpiece 10, and increasing the clamping efficiency of the workpiece 10, thus improving production efficiency.

[0068] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0069] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A clamp, characterized in that, include: First mounting base (1); A fastener (2) is installed on the first mounting base (1). The fastener (2) is provided with a first support part (21), which is suitable for supporting the workpiece (10). The movable part (3) and the first driving part are connected to the movable part (3). The first driving part can drive the movable part (3) to move closer to the first support part (21) so as to press the workpiece (10) against the first support part (21). Positioning pin (4), one end of which is installed on the first mounting base (1) or the fastener (2), and the other end is used to position the workpiece (10).

2. The clamp according to claim 1, characterized in that, One end of the positioning pin (4) is disposed on the fixing member (2), and the other end protrudes from the first support part (21).

3. The clamp according to claim 1, characterized in that, The positioning pin (4) includes a first end and a second end that are arranged opposite to each other. The first end is installed on the first mounting base (1) or the fastener (2), and the second end is provided with a guide surface (41).

4. The clamp according to claim 3, characterized in that, The guide surface (41) is a conical surface.

5. The clamp according to claim 1, characterized in that, The positioning pins (4) are spaced out in multiples.

6. The clamp according to claim 1, characterized in that, The first support part (21) and the movable part (3) are provided in multiples, and the movable part (3) is provided in a one-to-one correspondence with the first support part (21).

7. The clamp according to claim 1, characterized in that, The first support (21) is provided on the first end face (22) of the fixed member (2) facing the movable member (3), and the first support (21) protrudes from the first end face (22).

8. The clamp according to claim 1, characterized in that, It also includes a support member (6), which is mounted on the first mounting base (1) and is adapted to support the workpiece (10).

9. The clamp according to claim 1, characterized in that, It also includes a second driving member (5), which is connected to the first mounting base (1) and can drive the first mounting base (1) to rotate.

10. A CNC machining equipment, characterized in that, Includes the clamp as described in any one of claims 1 to 9.

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