Special fixture for special-shaped workpiece

Abstract

The utility model discloses a special tooling jig of special-shaped workpiece includes base, fixed assembly, first clamping rod, second clamping rod and elastic part, and fixed assembly installs in base, and fixed assembly includes left connecting piece and right connecting piece in the top of base, and forms the installation space between left connecting piece and right connecting piece, and first clamping rod and second clamping rod are staggered and set in the installation space, and one side of first clamping rod is pivoted with right connecting piece, and the other side of first clamping rod is pivoted with one side of second clamping rod, and the other side of second clamping rod is pivoted with left connecting piece, and first clamping rod pivots relative to second clamping rod and has clamping position and release lock position, and the upper end of first clamping rod extends to second clamping rod and has first clamping hook, and the upper end of second clamping rod extends to first clamping rod and has second clamping hook. The special tooling jig of special-shaped workpiece of the utility model is applicable to long strip arc machining piece, and has the characteristics of speciality.

Description

Technical Field

[0001] This utility model relates to the field of processing equipment technology, and in particular to a special tooling fixture for irregularly shaped workpieces. Background Technology

[0002] Please refer to the attached diagram in the instruction manual for details. Figures 1 to 2 Since different workpieces require different fixtures, a special fixture is needed for the workpiece 200, which is an arc-shaped part with a long strip shape and has a retaining hole 200a inside. The retaining hole 200a is located on the front and back sides of the workpiece 200. Existing fixtures are mainly for relatively regular workpieces. However, when this workpiece 200 is being ground, a special fixture is needed for positioning to facilitate subsequent grinding. Therefore, existing conventional fixtures cannot meet the current production needs.

[0003] To solve the above problems, it is necessary to provide a special tooling fixture for irregularly shaped workpieces. Utility Model Content

[0004] The purpose of this utility model is to provide a special tooling fixture for irregularly shaped workpieces, which is suitable for long and arc-shaped workpieces and has the characteristics of specialization.

[0005] To achieve the above objectives, the present invention provides a special tooling fixture for irregularly shaped workpieces, comprising a base, a fixing assembly, a first clamping rod, a second clamping rod, and an elastic element. The fixing assembly is mounted on the base and includes a left connector and a right connector located above the base, forming an installation space between the left connector and the right connector. The first clamping rod and the second clamping rod are staggered within the installation space. One side of the first clamping rod is pivotally connected to the right connector, and the other side of the first clamping rod is pivotally connected to one side of the second clamping rod. The other side of the second clamping rod is pivotally connected to the left connector. The first clamping rod pivots relative to the second clamping rod to have a clamping position and a release position. The upper end of the first clamping rod extends toward the second clamping rod and has a first engaging hook. The upper end of the second clamping rod extends toward the first clamping rod and has a second engaging hook. The elastic element provides an elastic force that causes the first clamping rod to always have a tendency to rotate from the release position to the clamping position.

[0006] Preferably, the fixing assembly further comprises a fixed vertical plate, the fixed vertical plate is vertically mounted on the base, the left connecting member is connected to the left side surface of the fixed vertical plate, and the right connecting member is connected to the right side surface of the fixed vertical plate. The upper portion of the fixed vertical plate is provided with a supporting arc surface for supporting a workpiece, the upper portion of the fixed vertical plate is provided with an avoiding groove corresponding to the first clamping lever and the second clamping lever, the lower portion of the fixed vertical plate is provided with an avoiding through hole corresponding to the first clamping lever and the second clamping lever, the fixed vertical plate is provided with a communicating hole corresponding to the first clamping lever, and the first clamping lever is pivoted with the left connecting member through the communicating hole.

[0007] Specifically, the special tooling fixture for profiled workpieces further comprises a rotating connecting shaft, the left connecting member is provided with a left connecting hole, the first clamping lever is provided with a first connecting hole, the second clamping lever is provided with a second connecting hole, the right connecting member is provided with a right connecting hole, and the rotating connecting shaft sequentially passes through the right connecting hole of the right connecting member, the communicating hole of the fixed vertical plate, the first connecting hole of the first clamping lever, the second connecting hole of the second clamping lever and the left connecting hole of the left connecting member, and connects the right connecting member, the fixed vertical plate, the first clamping lever, the second clamping lever and the left connecting member.

[0008] Specifically, the left connecting member comprises an upper left horizontal plate, a lower left horizontal plate and a left vertical plate, the upper left horizontal plate is connected to the upper end of the left vertical plate, the lower left horizontal plate is connected to the lower end of the left vertical plate, the upper left horizontal plate is provided with a left connecting hole, and both ends of the upper left horizontal plate and both ends of the lower left horizontal plate are in threaded connection with the fixed vertical plate.

[0009] Specifically, the right connecting member comprises an upper right horizontal plate, a lower right horizontal plate and a right vertical plate, the upper right horizontal plate is connected to the upper end of the right vertical plate, the lower right horizontal plate is connected to the lower end of the right vertical plate, the upper right horizontal plate is provided with a right connecting hole, and both ends of the upper right horizontal plate and both ends of the lower right horizontal plate are in threaded connection with the fixed vertical plate.

[0010] Specifically, the avoiding groove is herringbone-shaped.

[0011] Specifically, the avoiding through hole is herringbone-shaped.

[0012] Specifically, the herringbone-shaped avoiding groove of the fixed vertical plate encloses a sector block, the top end surface of the sector block forms the supporting arc surface, and the avoiding groove is located at the left and right sides and below the sector block.

[0013] Preferably, the lower end of the first clamping lever is provided with a first operating handle, and the lower end of the second clamping lever is provided with a second operating handle. Operating the first operating handle and the second operating handle enables the first clamping lever and the second clamping lever to overcome the elastic force of the elastic member and rotate from the clamping position to the unlocking position.

[0014] Specifically, the fixed vertical plate has an arc-shaped portion for gripping.

[0015] Compared with the prior art, the special tooling fixture for irregularly shaped workpieces provided by this utility model, by setting a first clamping rod, a second clamping rod, and an elastic element, the first clamping rod and the second clamping rod are arranged alternately in the installation space, thereby forming a scissor structure. The first clamping rod pivots relative to the second clamping rod to have a clamping position and an unlocking position. The upper end of the first clamping rod extends towards the second clamping rod and has a first engaging hook, and the upper end of the second clamping rod extends towards the first clamping rod and has a second engaging hook. The elastic element provides an elastic force, which causes the first... The clamping rods always tend to rotate from the unlocked position to the clamped position. Therefore, without external force, the first and second clamping rods, under the elastic force of the elastic element, cause the first locking hook to engage the locking holes on both sides of the workpiece, thereby positioning the workpiece. By manually operating the scissor mechanism, the first and second clamping rods move relative to each other against the elastic force of the elastic element, causing the first clamping rod to pivot relative to the second clamping rod. The first clamping rod rotates from the clamped position to the unlocked position, and the first and second clamping rods disengage against the elastic force of the elastic element, thereby releasing the workpiece and removing it. The scissor structure formed by the first and second clamping rods can evenly clamp and release the workpiece from both sides, providing not only good stability but also ease of operation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the workpiece to which the special tooling fixture for irregularly shaped workpieces of this utility model is applied.

[0017] Figure 2 This is another three-dimensional structural diagram of the workpiece to which the special tooling fixture for irregularly shaped workpieces of this utility model is applied.

[0018] Figure 3 This is a front view of the special tooling fixture for irregularly shaped workpieces of this utility model, with the first clamping rod in the unlocked position.

[0019] Figure 4 This is a front view of the special tooling fixture for irregularly shaped workpieces of this utility model, with the first clamping rod in the clamping position.

[0020] Figure 5 This is a three-dimensional structural diagram of the special tooling fixture for irregularly shaped workpieces according to this utility model.

[0021] Figure 6 This is a three-dimensional structural diagram of the special tooling fixture for irregularly shaped workpieces of this utility model after the left connecting part is hidden.

[0022] Figure 7This is a three-dimensional structural diagram of the special tooling fixture for irregularly shaped workpieces of this utility model from another angle.

[0023] Figure 8 This is a three-dimensional structural diagram of the special tooling fixture for irregularly shaped workpieces of this utility model after the right connecting part is hidden. Detailed Implementation

[0024] To explain in detail the technical content, structural features, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0025] Please see Figures 1 to 8 The special tooling fixture 100 for irregularly shaped workpieces of this utility model includes a base 1, a fixing component 2, a first clamping rod 3, a second clamping rod 4, and an elastic element 5. The fixing component 2 is installed on the base 1 and includes a left connecting member 21 and a right connecting member 22 located above the base 1. An installation space 23 is formed between the left connecting member 21 and the right connecting member 22. The first clamping rod 3 and the second clamping rod 4 are staggered in the installation space 23. One side of the first clamping rod 3 is pivotally connected to the right connecting member 22, and the other side of the first clamping rod 3 is connected to one side of the second clamping rod 4. The first clamping rod 3 is pivotally connected to the second clamping rod 4 on the other side, and the first clamping rod 3 pivots relative to the second clamping rod 4 to have a clamping position and a release position. It can be understood that the first clamping rod 3 and the second clamping rod 4 rotate relative to each other, and the second clamping rod 4 also has a relative clamping position and a relative release position when pivoting relative to the first clamping rod 3. The upper end of the first clamping rod extends towards the second clamping rod 4 and has a first engaging hook 31, and the upper end of the second clamping rod 4 extends towards the first clamping rod 3 and has a second engaging hook 41. The elastic member 5 provides an elastic force. The elastic element 5 is a torsion spring. This elastic force causes the first clamping rod 3 to constantly rotate from the unlocked position to the clamping position. This elastic force also causes the second clamping rod 4 to constantly rotate from its relative unlocked position to its relative clamping position. By arranging the first clamping rod 3, the second clamping rod 4, and the elastic element 5, the first clamping rod 3 and the second clamping rod 4 are staggered within the installation space 23, thus forming a scissor structure. The first clamping rod 3 pivots relative to the second clamping rod 4 to have both a clamping position and an unlocked position. The upper end of clamping rod 3 extends towards the second clamping rod 4 and has a first engaging hook 31. The upper end of the second clamping rod 4 extends towards the first clamping rod 3 and has a second engaging hook 41. The elastic element 5 provides an elastic force, which causes the first clamping rod 3 to always have a tendency to rotate from the unlocked position to the clamped position. Therefore, without external force, the first clamping rod 3 and the second clamping rod 4, under the action of the elastic force of the elastic element 5, cause the first engaging hook 31 to hook onto the locking holes on both sides of the workpiece, thereby achieving the positioning of the workpiece. The swing scissor mechanism is operated manually (the specific direction of force operation can be found in [reference]). Figure 3(As indicated by arrow F), the first clamping rod 3 and the second clamping rod 4 move relative to each other against the elastic force of the elastic element 5, causing the first clamping rod 3 to pivot relative to the second clamping rod 4. The first clamping rod 3 rotates from the clamping position to the unlocking position, and the second clamping rod 4 rotates from the relative clamping position to the relative unlocking position. The first clamping rod 3 and the second clamping rod 4 disengage against the elastic force of the elastic element 5, thereby releasing the workpiece and removing it. The scissor structure formed by the first clamping rod 3 and the second clamping rod 4 can evenly clamp and release the workpiece 200 from both sides, providing not only good stability but also ease of use and matching hand operation. More specifically, as follows: Please see Figures 5 to 8 The fixing assembly 2 also includes a fixing vertical plate 24, which is vertically mounted on the base 1. The left connector 21 is connected to the left side of the fixing vertical plate 24, and the right connector 22 is connected to the right side of the fixing vertical plate 24. The upper part of the fixing vertical plate 24 has a supporting arc surface 241 for supporting the workpiece. The upper part of the fixing vertical plate 24 has a clearance groove 242 corresponding to the first clamping rod 3 and the second clamping rod 4. The clearance groove 242 is formed by the surface of the fixing vertical plate 24 being recessed inward. The lower part of the fixing vertical plate 24 has a clearance through hole 243 corresponding to the first clamping rod 3 and the second clamping rod 4. The clearance through hole 243 can provide space for the operating parts of the first clamping rod 3 and the second clamping rod 4. The fixing vertical plate 24 has a connecting hole 244 corresponding to the first clamping rod 3. The first clamping rod 3 is pivotally connected to the left connector 21 through the connecting hole 244.

[0026] Please see Figures 1 to 4 The special tooling fixture 100 for irregularly shaped workpieces also includes a rotating connecting shaft 6. The left connecting member 21 has a left connecting hole 211. The first clamping rod 3 has a first connecting hole 32. The second clamping rod 4 has a second connecting hole 42. The right connecting member 22 has a right connecting hole 221. The rotating connecting shaft 6 passes through the right connecting hole 221 of the right connecting member 22, the connecting hole 244 of the fixed vertical plate 24, the first connecting hole 32 of the first clamping rod 3, the second connecting hole 42 of the second clamping rod, and the left connecting hole 211 of the left connecting member 21 in sequence, and connects the right connecting member 22, the fixed vertical plate 24, the first clamping rod, the second clamping rod, and the left connecting member 21. The first clamping rod 3 can rotate relative to the rotating connecting shaft 6, and the second clamping rod 4 can rotate relative to the rotating connecting shaft 6. The left connecting member 21, the fixed vertical plate 24, and the right connecting member 22 together restrict the lateral displacement of the first clamping rod 3 and the second clamping rod 4 to prevent them from coming out.

[0027] Please see Figures 5 to 6The left connector 21 includes an upper left horizontal plate 212, a lower left horizontal plate 213, and a left vertical plate 214. The upper left horizontal plate 212 is connected to the upper end of the left vertical plate 214, and the lower left horizontal plate 213 is connected to the lower end of the left vertical plate 214. The upper left horizontal plate 212 has a left connecting hole 211. Both ends of the upper left horizontal plate 212 and both ends of the lower left horizontal plate 213 are threaded to the fixed vertical plate 24 to fix the left connector 21.

[0028] Please see Figures 7 to 8 The right connector 22 includes an upper right horizontal plate 222, a lower right horizontal plate 223, and a right vertical plate 224. The upper right horizontal plate 222 is connected to the upper end of the right vertical plate 224, and the lower right horizontal plate 223 is connected to the lower end of the right vertical plate 224. The upper right horizontal plate 222 has a right connecting hole 221. Both ends of the upper right horizontal plate 222 and both ends of the lower right horizontal plate 223 are threadedly connected to the fixed vertical plate 24 to fix the right connector 22. Preferably, the clearance groove 242 is in the shape of a "V", but it is not limited to this. Preferably, the clearance through hole 243 is in the shape of a "V", but it is not limited to this.

[0029] Please see Figure 5 The "human" shaped clearance groove 242 of the fixed vertical plate 24 wraps around a fan-shaped block 245. The top surface of the fan-shaped block 245 forms a supporting arc surface 241. The clearance groove 242 is located on the left and right sides and below the fan-shaped block 245.

[0030] Please see Figure 3 The lower end of the first clamping rod 3 has a first operating handle 33, and the lower end of the second clamping rod 4 has a second operating handle 43. Operating the first operating handle 33 and the second operating handle 43 causes the first clamping rod 3 to rotate from the clamping position to the unlocking position against the elastic force of the elastic member 5. The operating handle is a long column structure extending outward from the first clamping rod and the second clamping rod. Figure 5 The specific structures of the first operating handle 33 and the second operating handle 43 are not shown; only the through holes for inserting the first operating handle 33 and the second operating handle 43 are shown. Please refer to [link / reference needed]. Figure 5 The fixed vertical plate 24 has an arc-shaped portion 246 for gripping, which makes it easy to hold and carry.

[0031] Please refer to the following: Figures 1 to 8 The working process of the special tooling fixture 100 for irregularly shaped workpieces of this utility model is as follows: By manually operating the swing scissor mechanism, the first clamping rod 3 and the second clamping rod 4 move relative to each other against the elastic force of the elastic element 5, causing the first clamping rod 3 to pivot relative to the second clamping rod 4. The first clamping rod 3 rotates from the clamping position to the unlocking position, and the second clamping rod 4 rotates from the relative clamping position to the relative unlocking position. The first clamping rod 3 and the second clamping rod 4 switch to the unclamping state against the elastic force of the elastic element 5, supporting the workpiece 200 on the supporting arc surface 241 of the fixed vertical plate 24. When the workpiece 200 is in place, the first clamping rod 3 and the second clamping rod 4... Under the elastic force of the elastic element 5, the first locking hook 31 hooks the locking holes 200a on both sides of the workpiece, thereby positioning the workpiece 200. After processing, the first clamping rod 3 and the second clamping rod 4 overcome the elastic force of the elastic element 5 and move relative to each other, causing the first clamping rod 3 to pivot relative to the second clamping rod 4. The first clamping rod 3 rotates from the clamping position to the unlocking position, and the second clamping rod 4 rotates from the relative unlocking position to the relative clamping position. The first clamping rod 3 and the second clamping rod 4 overcome the elastic force of the elastic element 5 and unclamp, thereby releasing the workpiece and taking it out.

[0032] By setting a first clamping rod 3, a second clamping rod 4, and an elastic element 5, the first clamping rod 3 and the second clamping rod 4 are staggered within the installation space 23, thereby forming a scissor structure. The first clamping rod 3 pivots relative to the second clamping rod 4 to have a clamping position and an unlocking position. The upper end of the first clamping rod 3 extends toward the second clamping rod 4 and has a first engaging hook 31, and the upper end of the second clamping rod 4 extends toward the first clamping rod 3 and has a second engaging hook 41. The elastic element 5 provides an elastic force, which ensures that the first clamping rod 3 always has an unlocking position. The scissor mechanism tends to rotate to the clamping position. Therefore, without external force, the first clamping rod 3 and the second clamping rod 4, under the elastic force of the elastic element 5, cause the first engaging hook 31 to hook onto the locking holes on both sides of the workpiece, thereby positioning the workpiece. By manually operating the scissor mechanism, the first clamping rod 3 and the second clamping rod 4 overcome the elastic force of the elastic element 5 and move relative to each other, causing the first clamping rod 3 to pivot relative to the second clamping rod 4. The first clamping rod 3 rotates from the clamping position to the unlocking position, and the first clamping rod 3 and the second clamping rod 4 overcome the elastic force of the elastic element 5 to disengage, thereby releasing the workpiece and removing it. The scissor structure formed by the first clamping rod 3 and the second clamping rod 4 can evenly clamp and release the workpiece from both sides, providing not only good stability but also convenience for hand operation.

[0033] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A special tooling fixture for irregularly shaped workpieces, characterized in that, Comprises a base, a fixing assembly, a first clamping lever, a second clamping lever and an elastic member, wherein the fixing assembly is mounted on the base, the fixing assembly comprises a left connecting piece and a right connecting piece located above the base, an installation space is formed between the left connecting piece and the right connecting piece, the first clamping lever and the second clamping lever are staggered in the installation space, one side of the first clamping lever is pivotally connected to the right connecting piece, the other side of the first clamping lever is pivotally connected to one side of the second clamping lever, the other side of the second clamping lever is pivotally connected to the left connecting piece, the first clamping lever pivots relative to the second clamping lever to have a clamping position and an unlocking position, a first engaging hook extends from the upper end of the first clamping lever toward the second clamping lever, a second engaging hook extends from the upper end of the second clamping lever toward the first clamping lever, the elastic member provides an elastic force, and the elastic force causes the first clamping lever to constantly have a tendency to rotate from the unlocking position to the clamping position.

2. The special tooling fixture for irregularly shaped workpieces as described in claim 1, characterized in that, The fixing assembly further comprises a fixed vertical plate, the fixed vertical plate is vertically mounted on the base, the left connecting piece is connected to the left side surface of the fixed vertical plate, the right connecting piece is connected to the right side surface of the fixed vertical plate, the upper part of the fixed vertical plate is provided with a supporting arc surface for supporting a workpiece, the upper part of the fixed vertical plate is provided with an avoidance groove corresponding to the first clamping lever and the second clamping lever, the lower part of the fixed vertical plate is provided with an avoidance through hole corresponding to the first clamping lever and the second clamping lever, the fixed vertical plate is provided with a communication hole corresponding to the first clamping lever, and the first clamping lever is pivotally connected to the left connecting piece through the communication hole.

3. The special tooling fixture for irregularly shaped workpieces as described in claim 2, characterized in that, Further comprises a rotary connecting shaft, the left connecting piece is provided with a left connecting hole, the first clamping lever is provided with a first connecting hole, the second clamping lever is provided with a second connecting hole, the right connecting piece is provided with a right connecting hole, the rotary connecting shaft sequentially passes through the right connecting hole of the right connecting piece, the communication hole of the fixed vertical plate, the first connecting hole of the first clamping lever, the second connecting hole of the second clamping lever and the left connecting hole of the left connecting piece, and connects the right connecting piece, the fixed vertical plate, the first clamping lever, the second clamping lever and the left connecting piece.

4. The special tooling fixture for irregularly shaped workpieces as described in claim 2, characterized in that, The left connecting piece comprises an upper left horizontal plate, a lower left horizontal plate and a left vertical plate, the upper left horizontal plate is connected to the upper end of the left vertical plate, the lower left horizontal plate is connected to the lower end of the left vertical plate, the upper left horizontal plate is provided with a left connecting hole, and both ends of the upper left horizontal plate and both ends of the lower left horizontal plate are in threaded connection with the fixed vertical plate.

5. The special tooling fixture for irregularly shaped workpieces as described in claim 2, characterized in that, The right connecting piece comprises an upper right horizontal plate, a lower right horizontal plate and a right vertical plate, the upper right horizontal plate is connected to the upper end of the right vertical plate, the lower right horizontal plate is connected to the lower end of the right vertical plate, the upper right horizontal plate is provided with a right connecting hole, and both ends of the upper right horizontal plate and both ends of the lower right horizontal plate are in threaded connection with the fixed vertical plate.

6. The special tooling fixture for irregularly shaped workpieces as described in claim 2, characterized in that, The avoidance groove is a herringbone-shaped groove.

7. The special tooling fixture for irregularly shaped workpieces as described in claim 2, characterized in that, The avoidance through hole is a herringbone-shaped through hole.

8. The special tooling fixture for irregularly shaped workpieces as described in claim 6, characterized in that, The herringbone-shaped avoidance groove of the fixed vertical plate encloses a sector block, the top end surface of the sector block forms the supporting arc surface, and the avoidance groove is located on the left and right sides and below the sector block.

9. The special tooling fixture for irregularly shaped workpieces as described in claim 1, characterized in that, The lower end of the first clamping rod has a first operating handle, and the lower end of the second clamping rod has a second operating handle. Operating the first operating handle and the second operating handle causes the first clamping rod to rotate from the clamping position to the releasing position against the elastic force of the elastic element.

10. The special tooling fixture for irregularly shaped workpieces as described in claim 2, characterized in that, The fixed vertical plate has an arc-shaped portion for gripping.

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