A clamp

Abstract

The application discloses a clamp for clamping a workpiece, comprising a main body part, a transverse fixing part and a transverse reference part, the main body part comprises a first step part and a second step part extending along a first direction, the second step part is located on the side of the first step part along a second direction perpendicular to the first direction, and the second step part protrudes from the first step part along a third direction perpendicular to the first direction and the second direction, the top surface of the first step part is used for supporting the workpiece, the transverse fixing part is fixed to the side surface of the first step part, and the transverse reference part is movably arranged in the transverse fixing part and used for abutting against the workpiece along the second direction. According to the clamp, the operation process is simplified, the machining cost is effectively reduced, and the products can be quickly switched on the clamp.

Description

Technical Field

[0001] This invention relates to the field of machining fixtures, and more specifically to a clamp. Background Technology

[0002] Existing clamping fixtures use three movable pads to position the workpiece, but this cannot achieve repeated positioning. The pads need to be disassembled and reinstalled, which wastes a lot of manpower, increases the downtime of the equipment, greatly increases the processing cost, and is not conducive to rapid product changeover.

[0003] Therefore, a fixture is needed to at least partially solve the above problems. Summary of the Invention

[0004] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. The summary section of this invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the above problems, the present invention provides a clamp for clamping a workpiece, comprising:

[0006] The main body includes a first step portion and a second step portion extending along a first direction. Along a second direction perpendicular to the first direction, the second step portion is located to the side of the first step portion. Along a third direction perpendicular to both the first and second directions, the second step portion protrudes from the first step portion. The top surface of the first step portion is used to support the workpiece.

[0007] A lateral fixing part is fixed to the side of the first step portion, and the side is perpendicular to the second direction;

[0008] A transverse reference portion, which is movably inserted through the transverse fixing portion, is used to abut against the workpiece along the second direction.

[0009] Optionally, it also includes a longitudinal fixing part and a longitudinal reference part.

[0010] The longitudinal fixing part is fixed to the end face of the main body, and the end face is perpendicular to the first direction;

[0011] The longitudinal reference portion is movably inserted through the longitudinal fixing portion and is used to abut against the workpiece along the first direction.

[0012] Optionally, it also includes a locking member, wherein the longitudinal fixing part includes a longitudinal reference through hole, the longitudinal reference through hole is disposed on the top surface of the longitudinal fixing part, and the locking member passes through the longitudinal reference through hole to restrict the movement of the longitudinal reference part along the first direction.

[0013] Optionally, it also includes a lateral positioning part, which is fixed to the side of the second step portion and opposite to the lateral reference portion, for clamping the workpiece together with the lateral reference portion in the second direction.

[0014] Optionally, it also includes a transverse reference member, wherein the transverse fixing part has a transverse reference through hole, the transverse reference member passes through the transverse reference through hole and abuts against the transverse reference part or the workpiece.

[0015] Optionally, it also includes a vertical support portion, which protrudes from the top surface of the first step portion and is used to support the workpiece.

[0016] Optionally, it also includes a clearance groove, which is disposed on the top surface of the first step portion. When the transverse reference portion abuts against the workpiece, the clearance groove does not contact the workpiece.

[0017] Optionally, it also includes mounting holes and fasteners. The mounting holes are disposed on the side of the first stepped portion and the end face of the main body portion, and the fasteners are disposed in the transverse fixing portion and the longitudinal fixing portion to connect the transverse fixing portion and the longitudinal fixing portion to the main body portion.

[0018] Optionally, it also includes a through hole, which is provided in the longitudinal fixing part and the transverse fixing part. The fixing member passes through the through hole and is connected to the mounting hole, so that the transverse fixing part and the longitudinal fixing part can be detachably fixed to the main body part.

[0019] Optionally, the transverse reference portion includes a pressure-resistant portion and a rigid portion, the pressure-resistant portion being connected to the rigid portion, the rigid portion being located between the pressure-resistant portion and the transverse reference member along the second direction, the pressure-resistant portion being used to abut against the workpiece, and the rigid portion being used to abut against the transverse reference member.

[0020] Optionally, the surface of the lateral positioning part facing the lateral reference part has a recessed venting groove along the second direction, and when the lateral positioning part abuts against the workpiece, the venting groove does not contact the workpiece.

[0021] Optionally, the surface of the transverse fixing part facing the first step part has a clearance portion, and when the transverse reference part abuts against the workpiece, the clearance portion does not contact the workpiece.

[0022] Optionally, the second step portion has a clearance step, which is used to accommodate part of the workpiece, and the clearance step does not contact the workpiece.

[0023] The fixture according to the present invention simplifies the operation process, effectively reduces processing costs, and facilitates quick product switching on the fixture. Attached Figure Description

[0024] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention.

[0025] In the attached image:

[0026] Figure 1 This is a schematic diagram of a workpiece mounting fixture according to the present invention;

[0027] Figure 2 This is a schematic diagram of a fixture for an unloaded workpiece according to the present invention;

[0028] Figure 3 for Figure 1 Schematic diagram of the main body structure;

[0029] Figure 4 for Figure 1 Schematic diagram of the transverse fixing part;

[0030] Figure 5 for Figure 1 Schematic diagram of the structure of the transverse reference block;

[0031] Figure 6 for Figure 1 A schematic diagram of the structure of the longitudinal positioning part, the longitudinal reference part, and the locking part in cooperation;

[0032] Figure 7 for Figure 1 A schematic diagram of the structure of the longitudinal positioning part and the longitudinal reference part in cooperation; and

[0033] Figure 8 for Figure 1 A schematic diagram of the structure of the transverse positioning part.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100: Fixture 110: Main body

[0036] 110a: End face 111: First step

[0037] 111a: Side view of the first step

[0038] 112: Second step portion; 112a: Side view of the second step portion.

[0039] 113: Mounting hole; 114: Through hole

[0040] 115: Fastener; 116: Vertical support.

[0041] 117: Clearance groove; 120: Lateral positioning part

[0042] 121: Exhaust groove; 130: Longitudinal fixing part

[0043] 131: Longitudinal reference section; 132: Longitudinal reference through hole

[0044] 133: Locking element; 141: Lateral fixing part

[0045] 142: Lateral reference part; 142a: Pressure-resistant part

[0046] 142b: Rigid part; 143: Lateral reference member

[0047] 144: Lateral reference through hole; 145: Relief portion

[0048] 146: Clearance step 200: Workpiece

[0049] D1: First direction D2: Second direction

[0050] D3: Third direction Detailed Implementation

[0051] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0052] To fully understand the present invention, a detailed description will be set forth in the following description. It should be understood that these embodiments are provided so that the disclosure of the present invention is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. Obviously, the implementation of embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described in detail below; however, in addition to these detailed descriptions, the present invention may have other embodiments.

[0053] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0054] The ordinal numbers such as "first" and "second" used in this invention are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" does not imply the existence of "second component," and the term "second component" does not imply the existence of "first component."

[0055] It should be noted that the terms “up,” “down,” “front,” “back,” “left,” “right,” “inner,” “outer,” and similar expressions used in this article are for illustrative purposes only and are not intended to be restrictive.

[0056] Now, refer to the appendix Figures 1 to 8 An exemplary embodiment of the present invention will be described in more detail below.

[0057] The present invention provides a clamp 100 for clamping a workpiece 200. The clamp 100 includes a main body 110, a transverse fixing part 141 and a transverse reference part 142.

[0058] Specifically, refer to the appendix Figure 1 , 2 3. The main body 110 is constructed as a stepped structure, including a first stepped portion 111 and a second stepped portion 112 extending along a first direction D1. The second stepped portion 112 is located to the side of the first stepped portion 111 along a second direction D2 perpendicular to the first direction D1. The second stepped portion 112 protrudes from the first stepped portion 111 along a third direction D3 perpendicular to the first direction D1 and the second direction D2. The top surface of the first stepped portion 111 is used to support the workpiece 200. When using the fixture 100, the workpiece 200 is placed on the first stepped portion 111, and the first stepped portion 111 provides a supporting force to the workpiece 200 along the third direction D3 to position the workpiece 200 in the third direction D3.

[0059] A transverse fixing part 141 is fixed to the side surface 111a of the first step part 111, which is perpendicular to the second direction D2. A transverse reference part 142 is movably inserted through the transverse fixing part 141 and is used to abut against the workpiece 200 along the second direction D2. Thus, the transverse reference part 142 applies a force to the workpiece 200 along the second direction D2 to position the workpiece 200 in the second direction D2.

[0060] In this way, when workpiece 200 is placed on fixture 100, workpiece 200 is subjected to forces from the second direction D2 and the third direction D3, that is, workpiece 200 is positioned in the second direction D2 and the third direction D3 respectively, so that workpiece 200 can be in the desired position to facilitate the next processing step. Furthermore, when changing workpiece 200, only the transverse reference part 142 needs to be moved, which improves work efficiency.

[0061] See attached document Figure 1 , 2 The fixture 100 includes a longitudinal fixing portion 130 and a longitudinal reference portion 131. The longitudinal fixing portion 130 is fixed to the end face 110a of the main body portion 110, which is perpendicular to the first direction D1. The longitudinal reference portion 131 is movably disposed through the longitudinal fixing portion 130 and is used to abut against the workpiece 200 along the first direction D1. It can be understood that the longitudinal reference portion 131 applies a force to the workpiece 200 along the first direction D1 to position the workpiece 200 in the first direction D1.

[0062] See attached document Figure 1 , 2 6 and 7, the longitudinal fixing part 130 includes a longitudinal reference through hole 132, and the longitudinal reference through hole 132 is disposed on the top surface of the longitudinal fixing part 130. A locking member 133 is disposed on the longitudinal fixing part 130 to restrict the movement of the longitudinal reference part 131 along the first direction D1. The locking member 133 passes through the longitudinal reference through hole 132 to press the longitudinal reference part 131.

[0063] When different sizes of workpieces 200 need to be processed, the operator can rotate the locking member 133 to release the restriction on the longitudinal reference part 131 and replace the longitudinal reference part 131 of different sizes, so that the fixture 100 can be adapted to workpieces 200 of different sizes.

[0064] Continue to refer to the appendix Figure 1 , 2 In addition to 3, the fixture 100 also includes a lateral positioning part 120, which is fixed to the side 112a of the second step part 112. Furthermore, the lateral positioning part 120 faces the lateral reference part 142, and the lateral positioning part 120 and the lateral reference part 142 work together to clamp the workpiece 200 along the second direction D2.

[0065] Therefore, the transverse positioning part 120 and the transverse reference part 142 apply opposite forces to the workpiece 200, preventing the workpiece 200 from moving along the second direction D2. This means the position of the workpiece 200 along the second direction D2 is determined, and the workpiece 200 is positioned along the second direction D2. Since the transverse positioning part 120 and the transverse reference part 142 clamp the workpiece 200 together, it can be clamped more securely. During processing, the workpiece 200 is less likely to change position, avoiding the hassle of secondary positioning and improving work efficiency.

[0066] The transverse fixing part 141 has a transverse reference through hole 144. The transverse reference member 143 passes through the transverse reference through hole 144 and abuts against the transverse reference part 142 or the workpiece 200. Specifically, refer to the attached drawing. Figure 1 and 4 Three transverse reference members 143 are disposed on the transverse fixing part 141, wherein two transverse reference members 143 abut against the transverse reference part 142 and one transverse reference member 143 abuts against the workpiece 200. The transverse reference members 143 are typically locking bolts, and the operator can rotate the transverse reference members 143 to adjust the distance between the transverse reference part 142 and the transverse positioning part 120 to lock workpieces 200 of different sizes.

[0067] See attached document Figure 1 , 3 4 and 7, the clamp 100 is also provided with mounting holes 113 and fasteners 115. Specifically, mounting holes 113 are provided on the side of the first stepped portion 111 and the end face of the main body portion 110. Fasteners 115 are typically bolts, and the mounting holes 113 have threaded structures. Fasteners 115 are provided in the transverse fixing portion 141 and the longitudinal fixing portion 130 to connect the transverse fixing portion 141 and the longitudinal fixing portion 130 to the main body portion 110.

[0068] The clamp 100 is also provided with through holes 114. Multiple through holes 114 are provided in the longitudinal fixing part 130 and the transverse fixing part 141. The fastener 115 passes through the through holes 114 and is connected to the mounting hole 113. It is fixed by a threaded structure so that the transverse fixing part 141 and the longitudinal fixing part 130 are detachably fixed to the main body part 110.

[0069] Through the locking action of the fastener 115, during the processing of the workpiece 200, the longitudinal fixing part 130 and the transverse fixing part 141 can be firmly connected to the main body part 110 and will not easily detach, thus ensuring the positioning accuracy of the fixture 100 during the processing.

[0070] See attached document Figure 1 and 5The transverse reference portion 142 includes a pressure-resistant portion 142a and a rigid portion 142b. The pressure-resistant portion 142a is connected to the rigid portion 142b, and the rigid portion 142b is located between the pressure-resistant portion 142a and the transverse reference member 143 along the second direction D2. The pressure-resistant portion 142a is used to abut against the workpiece 200, and the rigid portion 142b is used to abut against the transverse reference member 143. The pressure-resistant portion 142a and the rigid portion 142b are connected by adhesive. The pressure-resistant portion 142a is made of non-metallic material, so it will not scratch the workpiece 200 when the fixture 100 clamps it. The rigid portion 142b is made of metallic material and contacts the transverse reference member 143 to prevent the transverse reference member 143 from being crushed and deformed.

[0071] See attached document Figure 4 The lateral positioning part 120 has a recessed venting groove 121 along the second direction D2 on the surface facing the lateral reference part 142. When the lateral positioning part 120 abuts against the workpiece 200, the venting groove 121 does not contact the workpiece 200. When the lateral positioning part 120 contacts the workpiece 200, there will be excess air on the contact surface, which will affect the positioning accuracy. The excess air is discharged through the venting groove 121, so that the workpiece 200 fits the lateral positioning part 120 more closely.

[0072] See attached document Figure 3 The main body 110 has a vertical support portion 116 and a clearance groove 117. The clearance groove 117 is located on the top surface of the first stepped portion 111. Specifically, the vertical support portion 116 protrudes from the top surface of the first stepped portion 111 to form the clearance groove 117. Furthermore, when the transverse reference portion 142 abuts against the workpiece 200, the clearance groove does not contact the workpiece 200. Before processing, the workpiece 200 may have irregular burrs. Since the vertical support portion 116 is higher than the bottom surface of the clearance groove 117, the burrs do not directly contact the vertical support portion 116, but rather contact the clearance groove 117, preventing positioning deviation of the workpiece 200 in the third direction D3 and ensuring overall positioning accuracy.

[0073] See attached document Figure 4 The transverse fixing part 141 has a relief part 145 on the surface facing the first step part 111. When the transverse reference part 142 abuts against the workpiece 200, the relief part 145 does not contact the workpiece 200. Before being processed, the workpiece 200 itself has irregular burrs. The relief part 145 provides the fixture 100 with a margin, avoiding the influence of burrs on the positioning accuracy of the fixture 100.

[0074] See attached document Figure 3The second step 112 has a clearance step 146, which is used to accommodate part of the workpiece 200. The clearance step 146 does not contact the workpiece 200. Before being processed, the workpiece 200 itself has irregular burrs. The clearance step 146 provides the fixture 100 with a margin, which to a certain extent ensures the positioning accuracy of the fixture 100.

[0075] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the invention. Features described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0076] The present invention has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the invention to the scope of the described embodiments. Furthermore, those skilled in the art will understand that the present invention is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of the present invention, all of which fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamp for clamping a workpiece, characterized in that, include: The main body includes a first step portion and a second step portion extending along a first direction. Along a second direction perpendicular to the first direction, the second step portion is located to the side of the first step portion. Along a third direction perpendicular to both the first and second directions, the second step portion protrudes from the first step portion. The top surface of the first step portion is used to support the workpiece. A lateral fixing part is fixed to the side of the first step portion, and the side is perpendicular to the second direction; A transverse reference portion, which is movably inserted through the transverse fixing portion, is used to abut against the workpiece along the second direction; A transverse reference member, three of which are disposed on the transverse fixing part, wherein two of the transverse reference members abut against the transverse reference part and one transverse reference member abuts against the workpiece.

2. The clamp according to claim 1, characterized in that, It also includes a longitudinal fixing part and a longitudinal reference part. The longitudinal fixing part is fixed to the end face of the main body, and the end face is perpendicular to the first direction; The longitudinal reference portion is movably inserted through the longitudinal fixing portion and is used to abut against the workpiece along the first direction.

3. The clamp according to claim 2, characterized in that, It also includes a locking member. The longitudinal fixing part includes a longitudinal reference through hole, which is disposed on the top surface of the longitudinal fixing part. The locking member passes through the longitudinal reference through hole to restrict the movement of the longitudinal reference part along the first direction.

4. The clamp according to claim 1, characterized in that, It also includes a lateral positioning part, which is fixed to the side of the second step portion and opposite to the lateral reference portion, for clamping the workpiece together with the lateral reference portion in the second direction.

5. The clamp according to claim 1, characterized in that, The transverse fixing part has a transverse reference through hole, and the transverse reference member passes through the transverse reference through hole.

6. The clamp according to claim 1, characterized in that, It also includes a vertical support portion, which protrudes from the top surface of the first step portion and is used to support the workpiece.

7. The clamp according to claim 1, characterized in that, It also includes a clearance groove, which is disposed on the top surface of the first step portion. When the transverse reference portion abuts against the workpiece, the clearance groove does not contact the workpiece.

8. The clamp according to claim 2, characterized in that, It also includes mounting holes and fasteners. The mounting holes are provided on the side of the first stepped portion and the end face of the main body portion. The fasteners are provided in the transverse fixing portion and the longitudinal fixing portion to connect the transverse fixing portion and the longitudinal fixing portion to the main body portion.

9. The clamp according to claim 8, characterized in that, It also includes a through hole, which is provided in the longitudinal fixing part and the transverse fixing part. The fixing member passes through the through hole and is connected to the mounting hole, so that the transverse fixing part and the longitudinal fixing part can be detachably fixed to the main body part.

10. The clamp according to claim 1, characterized in that, The transverse reference portion includes a pressure-resistant portion and a rigid portion. The pressure-resistant portion is connected to the rigid portion. The rigid portion is located between the pressure-resistant portion and the transverse reference member along the second direction. The pressure-resistant portion is used to abut against the workpiece, and the rigid portion is used to abut against the transverse reference member.

11. The clamp according to claim 4, characterized in that, The surface of the lateral positioning part facing the lateral reference part has a recessed venting groove along the second direction. When the lateral positioning part abuts against the workpiece, the venting groove does not contact the workpiece.

12. The clamp according to claim 1, characterized in that, The surface of the transverse fixing part facing the first step part has a clearance portion, and when the transverse reference part abuts against the workpiece, the clearance portion does not contact the workpiece.

13. The clamp according to claim 1, characterized in that, The second step has a clearance step, which is used to accommodate part of the workpiece, and the clearance step does not contact the workpiece.

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