External bolster work holding device

Abstract

The utility model provides a kind of outer bracing type work fixing device, the outer bracing type work fixing device includes: a workbench, a work piece, several fixed screw pieces and several screw lock pieces, the workbench is respectively provided with a perforation, the work piece is set on the workbench and is respectively provided with a fixed hole, the several fixed screw pieces are set in the fixed hole via the perforation, the fixed screw piece is formed with a threaded passage at central inside, the threaded passage is formed with a bevel convex part, and the threaded passage end is formed with an expansion part, whereby, the several screw lock pieces are set in the threaded passage and are outwardly braced when passing the bevel convex part Expansion part, achieve the effect of fixing the work piece on the workbench.

Description

Technical Field

[0001] This utility model relates to a fixing device, and more particularly to an external support type work fixing device that uses a screw locking component to open the expansion portion in the fixing screw component, so that the workpiece can be stably placed and positioned on the worktable. Background Technology

[0002] With the rapid progress and development of industry and technology, traditional processing methods are constantly evolving and innovating. For example, traditionally, processing is done manually using lathes, milling machines, and other machining tools. Although the "human" is merely operating the tools, accidents can still occur if care is not taken. Therefore, in recent years, various intelligent automated machining centers have been developed to meet different processing needs. However, whether using traditional machining tools or intelligent automated machining centers, clamping devices are generally used to fix the workpiece in place. Commonly seen... The clamping device is quite large (to handle larger workpieces) and heavy (to minimize vibration and sway during processing). It mainly consists of two clamping seats. By adjusting the distance and gap between the two seats, the workpiece can be completely clamped in preparation for subsequent processing steps. However, if the distance and gap between the two seats is too heavy, it will damage the workpiece. If it is too light, it will not be able to clamp the workpiece, which may result in incomplete processing or the workpiece flying out, causing machine damage or personal injury.

[0003] Therefore, how to improve the aforementioned deficiencies is the technical challenge that the creators of this case want to solve. Utility Model Content

[0004] Therefore, to achieve the above objectives, this utility model provides an external support type working fixing device, which includes: a worktable, a working part, several fixing screws, and several locking screws. The worktable has a through hole at each of its corresponding ends. The working part is disposed on the worktable. The working part has a fixing hole at each of its corresponding ends on one side. Two of the through holes are connected to each other. The several fixing screws pass through the two through holes and are inserted into the two fixing holes. Each of the several fixing screws has a flange extending outward from its top end. The flange is slightly larger than the through hole and is confined to the through hole without penetrating it, thus ensuring that the working part is securely fixed to the worktable. Each of the fixing screws has a threaded channel formed on its central inner side, and a slanted protrusion formed on the threaded channel. Each of the fixing screws has an expansion portion formed at its end. Each of the locking screws has an external thread, which can be screwed onto the fixing screw through the threaded channel. Thus, since the fixing screw is inserted into the fixing hole through the through hole, the workpiece can be securely fixed to the worktable. Then, the locking screw is screwed into the threaded channel and passes through the slanted protrusion. During this process, as the locking screw gradually passes through the slanted protrusion, it will push the expansion portion outward. The expansion portion will generate a compressive supporting force in the fixing hole, thereby achieving the effect of firmly placing and positioning the workpiece on the worktable for subsequent processing. Attached Figure Description

[0005] Figure 1 This is an exploded view of the present invention.

[0006] Figure 2 This is a schematic diagram of a preferred embodiment of the present invention.

[0007] Figure 3 This is a schematic diagram of another state of a preferred embodiment of the present invention.

[0008] Figure 4 This is a schematic diagram of another state of a preferred embodiment of the present invention.

[0009] Explanation of symbols in the attached diagram: 1. Fixing device; 2. Workbench; 21. Perforation; 3. Workpiece; 31. Fixing hole; 4. Fixing screws; 41. Flange portion; 42. Threaded channel; 421 Oblique convex part; 422 Expansion section; 5. Screw fasteners; 51 External thread. Detailed Implementation

[0010] Please also refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The figure shows an exploded view and a schematic diagram of various states of the external support type working fixing device (hereinafter referred to as the fixing device) of this utility model. As can be clearly seen from the figure, the fixing device 1 has: A workbench 2, wherein each of the corresponding ends of the workbench 2 has a through hole 21.

[0011] A working piece 3 is disposed on the workbench 2. The working piece 3 has a fixing hole 31 at each of the corresponding ends on one side. The two through holes 21 can be connected to the two fixing holes 31.

[0012] Several fixing screws 4 (two are shown in the figure) are inserted into two fixing holes 31 through two through holes 21. Each fixing screw 4 has a flange 41 extending outward from its top end. The flange 41 is confined to the through hole 21 and does not pass through the through hole 21, so that the workpiece 3 can be securely fixed to the worktable 2. Each fixing screw 4 has a threaded channel 42 formed on its central inner side, and a slanted protrusion 421 is formed on the threaded channel 42. Each fixing screw 4 has an expansion portion 422 formed at its end.

[0013] Several screw-locking parts 5 (two are shown in the figure), each of the screw-locking parts 5 has an external thread 51, which can be screwed into the fixing screw 4 through the thread channel 42.

[0014] The flange portion 41 is slightly larger than the perforation 21.

[0015] The oblique protrusion 421 gradually protrudes onto the threaded channel 42, causing the threaded channel 42 to gradually shrink inward.

[0016] When the screw 5 passes through the oblique protrusion 421, it will naturally push the expansion portion 422 outward.

[0017] The main features are as follows: the workbench 2 has through holes 21 at corresponding ends; the workpiece 3 is disposed on the workbench 2; and the workpiece 3 has fixing holes 31 at corresponding ends on one side. The two through holes 21 can be connected to the two fixing holes 31. The fixing screws 4 are inserted into the fixing holes 31 through the through holes 21. Each of the fixing screws 4 has a flange 41 extending outward from its top end. The flange 41 is slightly larger than the through hole 21 and is confined to the through hole 21 without passing through it. The perforation 21 allows the workpiece 3 to be securely fixed to the workbench 2. Each of the plurality of fixing screws 4 has a threaded channel 42 formed at its central inner side, and each threaded channel 42 has a slanted protrusion 421. The slanted protrusion 421 gradually converges and protrudes from the threaded channel 42, causing the threaded channel 42 to gradually narrow inwards. Each of the plurality of fixing screws 4 has an expansion portion 422 at its end. Each of the plurality of locking screws 5 has an external thread 51, which can be screwed onto the fixing screw 4 via the threaded channel 42. When the screw-locking member 5 passes through the oblique protrusion 421, it will naturally expand the expansion portion 422 outward. In use, the working part 3 is set on the worktable 2. The two through holes 21 can connect to the two fixing holes 31. The fixing screw 4 passes through the through hole 21 and is inserted into the fixing hole 31. The flange portion 41 is slightly larger than the through hole 21 and can be limited to the through hole 21 so that the fixing screw 4 does not pass through the through hole 21, so that the working part 3 can be securely fixed on the worktable 2. The oblique protrusion 421 is formed on the threaded channel 42. The external thread of the screw-locking member 5 The thread 51 can be screwed onto the fixing screw 4 via the threaded channel 42. The fixing screw 4 has an expansion portion 422 at its end. As the oblique protrusion 421 gradually protrudes onto the threaded channel 42, the threaded channel 42 gradually shrinks inward. Therefore, as the screw 5 gradually passes through the oblique protrusion 421, it will push the expansion portion 422 outward and force the expansion portion 422 to generate a compressive supporting force in the fixing hole 31, thereby achieving the effect of firmly placing the workpiece 3 on the worktable 2 for subsequent processing.

[0018] The fixing device 1 of this utility model is composed of: the workbench 2, the workpiece 3, the plurality of fixing screws 4, and the plurality of locking screws 5. Since the fixing screws 4 are inserted into the fixing hole 31 through the through hole 21, the workpiece 3 can be securely fixed to the workbench 2. Then, the locking screws 5 are screwed into the threaded channel 42 and pass through the inclined protrusion 421. When the locking screws 5 pass through the inclined protrusion 421, they will push the expansion part 422 outward. The expansion part 422 will generate a compressive supporting force in the fixing hole 31, so as to achieve the effect of firmly placing and positioning the workpiece 3 on the workbench 2 for subsequent processing.

[0019] The embodiments listed above are only used to illustrate a preferred embodiment of the present utility model and are not intended to limit the scope of the present utility model. Any person skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be determined by the appended claims.

Claims

1. An external support type working fixing device, characterized in that, The external support type working fixing device includes: A workbench, wherein each of the corresponding ends of the workbench has a through hole; A workpiece is disposed on the workbench. The workpiece has a fixing hole at each of its two corresponding ends on one side, and the two fixing holes are connected. Several fixing screws are inserted into two fixing holes through two through holes. Each fixing screw has a flange extending outward from its top end, and the flange is confined to the through hole without passing through the through hole, so that the workpiece is securely fixed to the worktable. Each fixing screw has a threaded channel formed on its central inner side, and a slanted protrusion is formed on the threaded channel. Each fixing screw has an expansion portion formed at its end. Several screw-locking components, each having an external thread, are screwed into the fixing screw via the threaded channel.

2. The external support type working fixing device according to claim 1, characterized in that, The flange is slightly larger than the perforation.

3. The external support type working fixing device according to claim 1, characterized in that, The oblique protrusion gradually converges and protrudes on the threaded channel, causing the threaded channel to gradually shrink inward.

4. The external support type working fixing device according to claim 1, characterized in that, When the screw passes through the oblique protrusion, it will naturally push the expansion portion outward.

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