A fixture, machining machine and method for machining long hook-shaped parts.

Abstract

The present invention discloses a clamp, a processing machine and a method for processing long hook-shaped parts, which solves the problem of difficulty in clamping long hook-shaped parts in the prior art and has the beneficial effects of one-time clamping and high clamping efficiency. The specific scheme is as follows: A clamp for processing long hook-shaped parts comprises a first clamp, the first clamp comprises a positioning tire body fixed to a workbench, the positioning tire body is used to support at least one long hook-shaped part, a flipping and clamping arm is arranged on at least one side of the positioning tire body, the length of the flipping and clamping arm is adapted to the length of the long hook-shaped part, the flipping and clamping arm is flippable relative to the workbench, and after flipping, the flipping and clamping arm can press the long hook-shaped part from the hook portion of the long hook-shaped part toward the workbench, so that the bottom surface of the long hook-shaped part is exposed, a first clamping member is movably installed on the workbench, the first clamping member can move along the width direction of the positioning tire body, and the first clamping member can clamp the flipping and clamping arm.

Description

Technical Field

[0001] The invention relates to the field of parts processing and manufacturing, in particular to a clamp, a processing machine and a method for processing a long hook-shaped part. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] At present, most of the parts are machined by processing machine tools. In the railway field, there is an inner rail, which can be used as a reference. Figure 1 and Figure 2 As shown, it is a long hook-shaped component 1 with a length greater than 7m. The part blank is a profile part, and its top surface, bottom surface, top side groove position and top side U-shaped groove need to be machined separately. The size tolerance and shape tolerance of the machined surface are required to be within 0.8mm.

[0004] In the prior art, the inner rail is processed by a CNC machining center. During the machining process, there are problems of poor processing quality and high cost. The reason is that the inner rail blank is a slender profile with a length of 7070mm, which has a large original deformation, which makes it difficult to position and clamp it once. The current method is: multiple segmented positioning and clamping, but the problem of segmented positioning and clamping is that the clamping auxiliary time is long, which affects the processing efficiency; and the segmented clamping has the problem of large repeated positioning error.

[0005] Of course, the processing of other longer hook-shaped parts also has the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the object of the present invention is to provide a clamp for processing a long hook-shaped part, which is convenient for positioning the long hook-shaped part and realizing overall clamping.

[0007] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0008] A clamp for processing long hook-shaped parts, including a first clamp, the first clamp including a positioning tire body fixed to a workbench, the positioning tire body is used to support at least one long hook-shaped part, at least one side of the positioning tire body is provided with a flipping and clamping arm, the length of the flipping and clamping arm is adapted to the length of the long hook-shaped part, the flipping and clamping arm can be flipped relative to the workbench, after flipping, the flipping and clamping arm can press the long hook-shaped part from the hook portion of the long hook-shaped part toward the workbench, so that the bottom surface of the long hook-shaped part is exposed, a first clamping member is movably installed on the workbench, the first clamping member can move along the width direction of the positioning tire body, and the first clamping member can clamp the flipping and clamping arm.

[0009] As described above, a clamp for processing long hook-shaped parts, taking into account the bending of longer long hook-shaped parts, the positioning carcass can support two long hook-shaped parts at the same time, the flipping and clamping arms are located on both sides of the positioning carcass, the positioning carcass limits one side of the long hook-shaped part, a limit block is arranged inside the positioning carcass, the limit block limits the other side of the long hook-shaped part, and the long hook-shaped parts are pressed and shaped at the same time by flipping and clamping arms, the positioning carcass and the limit block.

[0010] A clamp for processing long hook-shaped parts as described above, the positioning carcass includes a support plate, side walls are respectively arranged on both sides of the support plate, the height of the limit block is smaller than the height of the side wall, a slope is arranged on the side of the limit block facing the side wall to cooperate with the long hook-shaped part, and the distance between the limit block and the side wall on one side is arranged to accommodate the long hook-shaped part with a hook portion away from the workbench.

[0011] In the fixture for processing long hook-shaped parts as described above, the flip clamping arm includes a mounting seat, the mounting seat is hingedly connected to the first support member, and the side of the first support member away from the mounting seat is connected to the clamping member, and the clamping member can enter the hook portion of the long hook-shaped part.

[0012] In the fixture for processing long hook-shaped parts as described above, a plurality of first clamping members are arranged on one side of the positioning carcass, one side of the first clamping member can be placed on the upper side of the positioning carcass, and the first clamping member is movably mounted on the workbench through a first fastener.

[0013] A clamp for processing long hook-shaped parts as described above also includes a second clamp, which includes a supporting carcass, which is fixed to a workbench, the bottom surface of the long hook-shaped part abuts against the supporting carcass, and the other side of the long hook-shaped part is supported by the top side of the supporting carcass, the distance between the second clamping member and the workbench is adjustable, and the second clamping member can press one side of the long hook-shaped part so that the top surface of the long hook-shaped part is exposed.

[0014] A jig for processing a long hook-shaped part as described above, wherein a positioning block is arranged on the inner side of the supporting carcass, the positioning block is provided with a recess, the bottom surface of the long hook-shaped part can be inserted into the recess of the positioning block, and the positioning block supports the long hook-shaped part;

[0015] The supporting carcass is fixed to the workbench by a second fastener.

[0016] In a clamp for processing long hook-shaped parts as described above, the second clamping member includes a second support member, the second support member can contact the long hook-shaped part to cooperate with the supporting tire body to shape the long hook-shaped part, the second support member is movably mounted on the workbench through a third fastener, and a plurality of second clamping plates are arranged on at least one side of the second support member, and the interval between two adjacent second clamping plates is arranged to expose the U-shaped groove of the long hook-shaped part.

[0017] In a second aspect, the present invention further provides a long hook-shaped part processing machine, including the long hook-shaped part processing fixture described above.

[0018] In a third aspect, the present invention further provides a method for processing a long hook-shaped part, using the long hook-shaped part processing fixture, comprising the following contents:

[0019] Setting a first fixture at the workbench;

[0020] The first fixture supports the long hook-shaped part by positioning the carcass so that the hook portion of the long hook-shaped part faces away from the workbench;

[0021] The flipping and pressing arm is flipped relative to the workbench so that the flipping and pressing arm presses the long hook-shaped part from the hook portion of the long hook-shaped part toward the workbench, so that the bottom surface of the long hook-shaped part is exposed;

[0022] The bottom surface of the long hook-shaped part is processed by a processing tool;

[0023] A second fixture is provided at the workbench;

[0024] The long hook-shaped part is supported by the support carcass, the bottom surface of the long hook-shaped part abuts against the support carcass, and the other side of the long hook-shaped part is supported by the top side of the support carcass;

[0025] adjusting the second pressing member relative to the workbench so that the second pressing member presses one side of the long hook-shaped part so that the top surface of the long hook-shaped part is exposed;

[0026] The top surface of the long hook-shaped part is processed by a processing tool.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1) The present invention provides a first clamp, which includes a positioning carcass, which can support at least one long hook-shaped part. After the flipping and clamping arm is flipped relative to the workbench, it can press the long hook-shaped part from the hook portion of the long hook-shaped part toward the workbench, and then the flipping and clamping arm is clamped by the first clamping member to ensure stable clamping of the long hook-shaped part. In this way, the flipping and clamping arm can be flipped to achieve clamping of the long hook-shaped part, and the bottom surface of the long hook-shaped part can be exposed to facilitate processing. There is no need for segmented clamping, and overall clamping is achieved, which solves the problem of slow efficiency of segmented clamping and single-piece clamping, and solves the problem of large deformation of the workpiece blank affecting the processing quality.

[0029] 2) The positioning carcass in the present invention can support two long hook-shaped parts at the same time, and the corresponding flipping and clamping arms are located on both sides of the positioning carcass, so that the two long hook-shaped parts can be clamped at the same time, effectively improving work efficiency and reducing manufacturing costs.

[0030] 3) In the present invention, a limit block is set on the inner side of the positioning tire body, and the limit block limits one side of the long hook-shaped part. The positioning tire body limits one side of the long hook-shaped part. In this way, the position of the long hook-shaped part can be adjusted during the pressing process of the flipping and clamping arm, and the long hook-shaped part can be shaped, so that the long hook-shaped part maintains straightness and ensures that the hook portion of the long hook-shaped part is set in a direction away from the workbench.

[0031] 4) The present invention also provides a second clamp, in which the supporting carcass is fixed to the workbench, and the bottom surface of the processed elongated hook-shaped part is used as a reference surface to abut against the supporting carcass, and the other side of the elongated hook-shaped part is supported by the top side of the supporting carcass and is clamped by a second clamping member, so that the top surface of the elongated hook-shaped part can be exposed, facilitating the processing of the top surface.

[0032] 5) The second clamping member structure in the present invention is reasonably arranged, and includes a second support member, which contacts the outer side of the hook portion of the elongated hook-shaped part to facilitate the top surface of the elongated hook-shaped part to extend from the side plate of the supporting tire body. In this way, a second clamping plate is arranged on the side of the second support member to clamp the elongated hook-shaped part from the upper side, and cooperate with the supporting tire body to shape the elongated hook-shaped part, thereby ensuring the straightness of the elongated hook-shaped part and facilitating the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0034] Figure 1 It is a schematic cross-sectional view of a long hook-shaped part.

[0035] Figure 2 It is a three-dimensional schematic diagram of a long hook-shaped part.

[0036] Figure 3 It is a cross-sectional view of a first fixture in a fixture for processing a long hook-shaped part according to one or more embodiments of the present invention.

[0037] Figure 4 It is an enlarged schematic diagram of a first clamp in a clamp for processing a long hook-shaped part according to one or more embodiments of the present invention.

[0038] Figure 5 It is a cross-sectional view of a second fixture in a fixture for processing a long hook-shaped part according to one or more embodiments of the present invention.

[0039] Figure 6 It is an enlarged schematic diagram of a second fixture in a fixture for processing a long hook-shaped part according to one or more embodiments of the present invention.

[0040] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0041] Wherein: 1. long hook-shaped part, 2. second processing surface, 3. third processing surface, 4. first processing surface, 5. U-shaped groove, 6. first clamping member, 7. flip clamping arm, 8. positioning carcass, 9. first clamping plate, 10. workbench, 11. first bolt, 12. first nut, 13. support plate, 14. first rectangular tube, 15. support column, 16. mounting seat, 17. L-shaped angle steel, 18. support carcass, 19. second rectangular tube, 20. third bolt, 21. third nut, 22. second nut, 23. positioning block, 24. limit block, 25. second clamping plate, 26. contact pad. DETAILED DESCRIPTION

[0042] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0044] As introduced in the background technology, in the prior art, it is difficult to clamp long hook-shaped parts. In order to solve the above technical problem, the present invention proposes a clamp for processing long hook-shaped parts.

[0045] Embodiment 1

[0046] In a typical embodiment of the present invention, reference is made to Figure 3 and Figure 4 As shown, a clamp for processing long hook-shaped parts includes a first clamp, the first clamp includes a positioning carcass 8 fixed to a workbench, the positioning carcass 8 is used to support at least one long hook-shaped part, a flipping and clamping arm 7 is arranged on at least one side of the positioning carcass, the length of the flipping and clamping arm 7 is adapted to the length of the long hook-shaped part 1, the flipping and clamping arm can be flipped relative to the workbench 10, after flipping, the flipping and clamping arm 7 can press the long hook-shaped part 1 from the hook portion of the long hook-shaped part 1 toward the workbench 10, so that the bottom surface of the long hook-shaped part, i.e., the first processing surface 4, is exposed, the first clamping member is movably installed on the workbench 10, the first clamping member can move along the width direction of the positioning carcass, and the first clamping member can clamp the flipping and clamping arm 7.

[0047] It should be noted that the positioning carcass 8 can support two long hook-shaped parts at the same time. Taking into account the bending of the longer long hook-shaped parts, the positioning carcass limits one side of the long hook-shaped part 1, and a limit block is set inside the positioning carcass, and the limit block limits the other side of the long hook-shaped part.

[0048] Specifically, the positioning carcass 8 includes a support plate 13, and side walls are respectively arranged on both sides of the support plate 13, so that the cross-section of the positioning carcass 8 is U-shaped, and the height of the limit block 24 is less than the height of the side wall. The limit block 24 is provided with an inclined surface on the side facing the side wall to cooperate with the long hook-shaped part 1, and the spacing distance between the limit block 24 and the side wall on one side is set to accommodate the long hook-shaped part 1 with a hook away from the workbench. In this way, in the process of the flipping and clamping arm contacting the long hook-shaped part 1, one side of the hook of the long hook-shaped part 1 gradually contacts the side wall, and the other side contacts the inclined surface of the limit block, so that the shape of the long hook-shaped part 1 is adjusted to ensure that the long hook-shaped part 1 is stably clamped. At the same time, the long hook-shaped part is shaped by the flipping and clamping arm, the positioning carcass and the limit block to ensure its straightness.

[0049] In this embodiment, the flipping and clamping arm 7 includes a mounting seat 16, which is fixed on both sides of the positioning tire body 8, and the mounting seat is fixed to the workbench 10. The mounting seat is hingedly connected to the first support member, and the side of the first support member away from the mounting seat is connected to the clamping member, and the clamping member can enter the hook portion of the long hook-shaped part.

[0050] Specifically, the first support member is a first rectangular tube 14, the length of the first rectangular tube 14 is compatible with the length of the long hook-shaped part 1, the clamping member is an L-shaped angle steel 17, one side of the clamping member is welded to the first rectangular tube 14, and one side of the clamping member is in the same plane as the top of the first rectangular tube 14.

[0051] It is easy to understand that the workbench is a machine tool workbench, and the workbench 10 is provided with multiple T-slots. Multiple first clamping members 6 are respectively provided on both sides of the positioning tire body 8. One side of the first clamping member can be placed on the upper side of the positioning tire body 8. The first clamping member 6 is movably installed on the workbench through a first fastener, namely a first bolt. The first bolt is a T-bolt, and the first bolt is fixed to the workbench 10. The first clamping member includes a first clamping plate 9. The first clamping plate 9 is provided with a long hole. The first clamping plate 9 and the first bolt 11 are matched with a threaded structure. The first bolt passes through the long hole of the first clamping plate 9 and is tightened by the first nut 12. A support column 15 is provided on the side of the first clamping plate 9 away from the positioning tire body 8. By loosening the first nut, the first clamping plate 9 can be moved outward along the width direction of the positioning tire body 8. The first clamping plate will not clamp the flip clamping arm. Tightening the first nut causes the first clamping plate to clamp the flip clamping arm 7.

[0052] refer to Figure 5 and Figure 6 As shown, the clamp also includes a second clamp, which includes a supporting carcass 18, which is fixed to the workbench, and the bottom surface of the elongated hook-shaped part 1, namely the first processing surface 4, abuts against the inner side of the supporting carcass, and the other side of the elongated hook-shaped part 1 is supported by the top side of the supporting carcass 18. The distance between the second clamping member and the workbench is adjustable, and the second clamping member can press one side of the elongated hook-shaped part 1 so that the top surface of the elongated hook-shaped part 1 is exposed, that is, the second processing surface 2 and the third processing surface 3 are exposed, and the third processing surface 3 is located on one side of the second processing surface 2.

[0053] It should be noted that the workbench used to fix and support the carcass 18 may be the same as or different from the workbench used to fix the first clamp. When they are different, the first clamp and the second clamp are fixed separately.

[0054] In this embodiment, a positioning block 23 is provided on the inner side of the supporting carcass, and the positioning block 23 is provided with a recessed portion, and the bottom surface of the long hook-shaped part can be inserted into the recessed portion of the positioning block, and the positioning block 23 is used to position the long hook-shaped part 1, and the positioning block also plays a supporting role for the long hook-shaped part;

[0055] Similarly, the cross-section of the support carcass 8 is also U-shaped, and the side plates on both sides of the support carcass 8 respectively support one side of the long hook-shaped part. The support carcass 8 is fixed to the workbench by a second fastener. The second fastener includes a third bolt. The third bolt can be locked by a third nut 21 after passing through the second clamping member.

[0056] In this embodiment, the second clamping member includes a second support member, which is a second rectangular tube 19. The second support member is movably mounted on the workbench through a third fastener. The third fastener is a third bolt 20. After the third bolt passes through the second rectangular tube, it can be locked by a third nut 21. Multiple second clamping plates 25 are arranged on both sides of the second support member. The second clamping plates 25 are welded and connected to the second support tube 19. The interval between two adjacent second clamping plates 25 on the same side of the second support tube 19 is set to expose the U-shaped groove 5 of the long hook-shaped part, so as to facilitate the processing of the U-shaped groove processing surface of the long hook-shaped part.

[0057] In addition, it is easy to understand that the thickness of the second support tube is greater than the thickness of the second clamping plate. Considering that long hook-shaped parts are arranged on both sides of the second support tube, contact pads 26 are respectively arranged on both sides of the second support tube 19. The height of the contact pads is less than the thickness of the second support tube. The contact pads 26 are arranged to squeeze the long hook-shaped parts 1 toward the side plates of the support carcass 18, so that the top surface of the long hook-shaped parts 1 protrudes from the side plates of the support carcass.

[0058] The clamp provided in this embodiment is provided with a first clamp and a second clamp. The first clamp can stably clamp the long hook-shaped part and expose the bottom surface of the long hook-shaped part to facilitate processing. The second clamp can expose the top surface of the long hook-shaped part to facilitate processing. The whole does not need to be clamped in sections, and overall clamping is achieved, which solves the problem of slow efficiency of segmented clamping and single-piece clamping, and solves the problem of large deformation of the workpiece blank affecting the processing quality.

[0059] Embodiment 2

[0060] This embodiment provides a long hook-shaped part processing machine, including a long hook-shaped part processing fixture as described in the first embodiment. The processing machine is also provided with a milling cutter mechanism, through which each processing surface of the long hook-shaped part can be processed and milled.

[0061] Embodiment 3

[0062] This embodiment provides a method for processing a long hook-shaped part such as an inner rail, using a fixture for processing a long hook-shaped part as described in Embodiment 1, including the following contents:

[0063] Setting a first fixture at the workbench;

[0064] The first fixture supports the long hook-shaped part by positioning the carcass so that the hook portion of the long hook-shaped part faces away from the workbench;

[0065] The flipping and pressing arm is flipped relative to the workbench so that the flipping and pressing arm presses the long hook-shaped part from the hook portion of the long hook-shaped part toward the workbench, so that the bottom surface of the long hook-shaped part is exposed;

[0066] The bottom surface of the long hook-shaped part is processed by a processing tool. A milling cutter with appropriate specifications is selected to process two long hook-shaped parts at the same time, and the first processing surface 4 is cleaned and processed to a size of 13 mm;

[0067] A second fixture is provided at the workbench;

[0068] The two long hook-shaped parts are supported by the two sides of the supporting carcass respectively, and the two long hook-shaped parts are placed symmetrically back to back. The bottom surface of the processed long hook-shaped part is used as a reference surface to abut against the positioning block on the inner side of the supporting carcass side plate, that is, inserted into the concave part of the positioning block, and the other side of the long hook-shaped part is supported by the top side of the supporting carcass;

[0069] adjusting the second pressing member relative to the workbench so that the second pressing member presses one side of the long hook-shaped part so that the top surface of the long hook-shaped part is exposed;

[0070] The top surface of the long hook-shaped part, namely the second processing surface 2, the third processing surface 3 and the U-shaped groove 5, are processed by a processing tool.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fixture for processing long hook-shaped parts, characterized in that: The first clamp includes a positioning carcass fixed to a workbench, the positioning carcass is used to support at least one long hook-shaped part, a flipping and clamping arm is arranged on at least one side of the positioning carcass, the length of the flipping and clamping arm is adapted to the length of the long hook-shaped part, the flipping and clamping arm is flippable relative to the workbench, and after flipping, the flipping and clamping arm can press the long hook-shaped part from the hook portion of the long hook-shaped part toward the workbench, so that the bottom surface of the long hook-shaped part is exposed, and a first clamping member is movably installed on the workbench, the first clamping member can move along the width direction of the positioning carcass, and the first clamping member can clamp the flipping and clamping arm.

2. A jig for processing long hook-shaped parts according to claim 1, characterized in that: The positioning carcass can support two long hook-shaped parts at the same time, the flipping and clamping arms are located on both sides of the positioning carcass, the positioning carcass limits one side of the long hook-shaped part, a limiting block is arranged inside the positioning carcass, the limiting block limits the other side of the long hook-shaped part, and the long hook-shaped component is pressed and shaped at the same time by the flipping and clamping arms, the positioning carcass and the limiting block.

3. A jig for processing long hook-shaped parts according to claim 2, characterized in that: The positioning carcass comprises a support plate, and side walls are respectively arranged on both sides of the support plate. The height of the limit block is smaller than that of the side wall, and a slope is arranged on one side of the limit block facing the side wall to cooperate with the long hook-shaped part.

4. A jig for processing long hook-shaped parts according to claim 1, characterized in that: The flip clamping arm comprises a mounting seat, which is hingedly connected to the first support member. The side of the first support member away from the mounting seat is connected to the clamping member, and the clamping member can enter the hook portion of the long hook-shaped part.

5. A jig for processing long hook-shaped parts according to claim 1, characterized in that: A plurality of first clamping members are arranged on one side of the positioning carcass, one side of the first clamping member can be placed on the upper side of the positioning carcass, and the first clamping member is movably mounted on the workbench through a first fastener.

6. A jig for processing long hook-shaped parts according to claim 1, characterized in that: It also includes a second clamp, which includes a supporting carcass, which is fixed to a workbench, the bottom surface of the elongated hook-shaped part abuts against the supporting carcass, the other side of the elongated hook-shaped part is supported by the top side of the supporting carcass, the distance between the second clamping member and the workbench is adjustable, and the second clamping member can press one side of the elongated hook-shaped part so that the top surface of the elongated hook-shaped part is exposed.

7. A jig for processing long hook-shaped parts according to claim 6, characterized in that: A positioning block is arranged on the inner side of the supporting carcass, and the positioning block is provided with a recessed portion, and the bottom surface of the long hook-shaped part can be inserted into the recessed portion of the positioning block, and the positioning block supports the long hook-shaped part; The supporting carcass is fixed to the workbench by a second fastener.

8. A jig for processing long hook-shaped parts according to claim 6, characterized in that: The second clamping member includes a second support member, which can contact the elongated hook-shaped part to cooperate with the supporting carcass to shape the elongated hook-shaped part. The second support member is movably mounted on the workbench through a third fastener. A plurality of second clamping plates are arranged on at least one side of the second support member, and a distance is set between two adjacent second clamping plates to expose the U-shaped groove of the elongated hook-shaped part.

9. A long hook-shaped parts processing machine, characterized in that: A clamp for processing long hook-shaped parts comprising any one of claims 1-8.

10. A method for processing a long hook-shaped part, characterized in that: A fixture for processing a long hook-shaped part according to any one of claims 6 to 8, comprising the following contents: Setting a first fixture at the workbench; The first fixture supports the long hook-shaped part by positioning the carcass so that the hook portion of the long hook-shaped part faces away from the workbench; The flipping and pressing arm is flipped relative to the workbench so that the flipping and pressing arm presses the long hook-shaped part from the hook portion of the long hook-shaped part toward the workbench, so that the bottom surface of the long hook-shaped part is exposed; The bottom surface of the long hook-shaped part is processed by a processing tool; A second fixture is provided at the workbench; The long hook-shaped part is supported by the support carcass, the bottom surface of the long hook-shaped part abuts against the support carcass, and the other side of the long hook-shaped part is supported by the top side of the support carcass; adjusting the second pressing member relative to the workbench so that the second pressing member presses one side of the long hook-shaped part so that the top surface of the long hook-shaped part is exposed; The top surface of the long hook-shaped part is processed by a processing tool.

Images