Special-shaped part clamping and positioning device
By adjusting and using auxiliary devices, the problem of poor connection stability of the clamping and positioning device for irregularly shaped parts was solved, enabling fast and stable clamping and processing of irregularly shaped parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JIANGREN PRECISION MACHINERY PROCESSING CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-21
AI Technical Summary
Existing clamping and positioning devices for irregularly shaped parts have poor stability due to screw connections. Over time, the screws are prone to corrosion, resulting in poor fixing effects and an inability to effectively clamp irregularly shaped parts.
The system employs adjustment and auxiliary devices, including components such as limit rods, connecting rods, coil springs, springs, and pull rings. The adjustment device improves installation stability, while the auxiliary devices enhance clamping stability and accuracy.
It improves the installation speed and stability of the clamping and positioning device on the mounting plate, and enhances the clamping effect and machining accuracy of irregular parts.
Smart Images

Figure CN224144419U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clamping and positioning equipment technology, and in particular to a clamping and positioning device for irregularly shaped parts. Background Technology
[0002] Clamping and positioning equipment is a device used to fix and position irregularly shaped or complex parts during the machining process. Due to the varied shapes of irregular parts, traditional fixtures may not be able to provide effective support or accurate positioning. Therefore, specially designed clamping and positioning devices are needed to ensure that the parts remain stable during the machining process and avoid positional deviations or machining errors.
[0003] Utility model patent CN216464084U discloses a clamping and positioning device. The key technical features are as follows: It includes a base, a base plate for placing a fixture, including a positioning part for positioning the base plate; a first positioning member rotatably connected to one end of the base for positioning a first material placed on the base plate; a second positioning member rotatably connected to the other end of the base for positioning a second material on top of the first material; and a pick-and-place module disposed on one side of the base, comprising a fixing frame, a lifting assembly, and an adsorption seat fixed to the lifting assembly. The lifting assembly can move up and down to drive the adsorption seat to move up and down, and the adsorption seat is used to adsorb and release a cover plate to cooperate with the first and second positioning members in positioning the first and second materials within the fixture. The above-mentioned clamping and positioning device positions the first and second materials using the first and second positioning members, preventing scratches when the first and second materials are placed within the fixture.
[0004] Regarding the above-mentioned content, the following technical defects exist: The irregular-shaped part clamping and positioning device is a tool used to fix and position irregularly shaped or complex parts during processing. Clamping facilitates the processing of irregular-shaped parts. Typically, the clamping and positioning device is connected to a mounting plate via a screw, thus fixing the device in place. However, the stability of a screw-connected device is poor, and over time, the screw will corrode, affecting the fixing effect of the screw on the mounting plate. A clamping and positioning device with poor fixing effect cannot clamp irregular-shaped parts, resulting in poor overall performance.
[0005] Therefore, it is necessary to provide a new clamping and positioning device for irregularly shaped parts to solve the above-mentioned technical problems. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing technologies where screw-based connections have poor stability, the screws corrode over time, affecting the fixing effect of the clamping and positioning device on the mounting plate, resulting in poor fixing effect and inability to clamp irregularly shaped parts. Furthermore, screw-based clamping and positioning devices generally have poor performance.
[0007] To solve the above-mentioned technical problems, this utility model provides a clamping and positioning device for irregularly shaped parts, comprising: a mounting plate, a clamping and positioning device body mounted on one side of the mounting plate, an adjusting device provided on the side of the mounting plate near the clamping and positioning device body, the adjusting device including a connecting frame, the connecting frame being fixedly connected to one side of the mounting plate, a limiting block being fixedly connected to the bottom wall of the connecting frame, the surface of the limiting block being slidably connected to the inner wall of the clamping and positioning device body, two connecting rods being rotatably connected to the inner wall of the connecting frame, an adjusting plate being fixedly connected to the arc surface of the connecting rods, and coil springs being slidably connected to both ends of the arc surface of the connecting rods, the two ends of the coil springs being fixedly connected to the side wall of the connecting frame and the adjusting plate respectively, an abutment block being fixedly connected to one side of the adjusting plate, connecting blocks being fixedly connected to the sides of the clamping and positioning device body near the two abutment blocks, a limiting rod slidingly penetrating the inner wall of the adjusting plate, a spring being sleeved on the arc surface of the limiting rod, the two ends of the spring being fixedly connected to the limiting rod and one side of the adjusting plate respectively, and the limiting rod slidingly penetrating the inner wall of the connecting frame.
[0008] The aforementioned components achieve the following effects: The main body of the irregular-shaped part clamping and positioning device is a tool used to fix and position irregularly shaped or complex parts during processing. Clamping facilitates the processing of irregular-shaped parts. Typically, the clamping and positioning device body is connected to the mounting plate via a screw, thus fixing the device body. However, the stability of a screw-connected device is poor, and over time, the screw will corrode, affecting the fixing effect of the clamping and positioning device body to the mounting plate. A clamping and positioning device body with poor fixing effect cannot clamp irregular-shaped parts. The clamping and positioning device body installed via a screw has poor performance. In this case, an adjustment device can be used to install the clamping and positioning device body onto the mounting plate, thereby increasing the installation speed, improving installation stability, and enhancing the subsequent clamping effect of the clamping and positioning device body when holding irregular-shaped parts.
[0009] Preferably, an auxiliary block is fixedly connected to one end of the arc surface of the limiting rod, and the auxiliary block is funnel-shaped.
[0010] The effect achieved by the above components is that when the limiting rod is connected to the inner wall of the connecting frame, the auxiliary block installed on the limiting rod can reduce the angle of direct contact between the two, thereby increasing the contact speed between the two.
[0011] Preferably, the connecting block has a slot on the side near the abutting block, and a protrusion is fixedly connected to the side of the abutting block near the slot, and the protrusion is slidably connected to the inner wall of the slot.
[0012] The effect achieved by the above components is that when the abutment block and the connecting block come into contact, the protrusion installed on the abutment block will contact the inner wall of the slot on the connecting block, thereby improving the stability of the connection block when it comes into contact with the abutment block.
[0013] Preferably, a pull ring is rotatably connected to the inner wall of the limiting rod.
[0014] The effect achieved by the above components is that when it is necessary to pull the limit rod, the limit rod can be pulled by the pull ring installed on the limit rod, which can improve the speed and efficiency of pulling the limit rod.
[0015] Preferably, the limiting rod is a titanium alloy rod.
[0016] The effect achieved by the above components is that the limit rod made of titanium alloy has a relatively hard surface and is less prone to deformation after long-term use, resulting in a longer service life.
[0017] Preferably, auxiliary devices are provided on both sides of the inner wall of the clamping and positioning device body. The auxiliary devices include connecting plates, which are slidably connected to the side wall of the clamping and positioning device body. A contact pad is fixedly connected to one side of the connecting plate. Anti-slip texture is formed on the side of the contact pad away from the connecting plate. A connecting rod is fixedly connected to the side of the connecting plate away from the contact pad. A fixing block is slidably connected to the arc surface of the connecting rod. The two fixing blocks are respectively fixedly connected to both sides of the clamping and positioning device body. A rotating ring is threadedly connected to the arc surface of the connecting rod.
[0018] The effect achieved by the above components is that when using the clamping and positioning device body to clamp irregularly shaped parts, the auxiliary device can be installed on the clamping and positioning device body, thereby improving the stability of clamping the clamping and positioning device body and the irregularly shaped parts, and improving the accuracy of processing irregularly shaped parts.
[0019] Preferably, the rotating ring has a plurality of anti-slip grooves on its arc surface, and the plurality of anti-slip grooves are evenly distributed on the rotating ring.
[0020] The effect achieved by the above components is that when the rotating ring is rotated on the connecting rod, the anti-slip groove on the rotating ring can increase the friction of the rotating ring surface, thereby improving the stability of rotating the rotating ring on the connecting rod.
[0021] Compared with related technologies, the clamping and positioning device for irregularly shaped parts provided by this utility model has the following advantages:
[0022] By setting an adjustment device, the installation task can be carried out when the clamping and positioning device is fixed on the mounting plate. The adjustment device can improve the stability of the clamping and positioning device, enhance the clamping effect of the clamping and positioning device on irregular parts, and simplify the installation steps.
[0023] By setting up auxiliary devices, when using a clamping and positioning device to hold irregularly shaped parts, the stability of the clamping and positioning device in holding and fixing irregularly shaped parts can be improved, thereby improving the clamping effect of the irregularly shaped parts and thus improving the accuracy of subsequent processing. Attached Figure Description
[0024] Figure 1 A schematic diagram of the structure of a clamping and positioning device for irregularly shaped parts provided by this utility model;
[0025] Figure 2 for Figure 1 The diagram shows the structure of the regulating device.
[0026] Figure 3 for Figure 1 The diagram shows the disassembled structure of the adjustment device.
[0027] Figure 4 for Figure 1 The diagram shows the structure of the auxiliary device.
[0028] Figure 5 for Figure 4 The enlarged view of point A shown.
[0029] The following are the labeling elements in the diagram: 1. Mounting plate; 2. Adjusting device; 201. Connecting frame; 202. Limiting block; 203. Connecting rod; 204. Adjusting plate; 205. Coil spring; 206. Abutment block; 207. Connecting block; 208. Limiting rod; 209. Spring; 210. Pull ring; 211. Auxiliary block; 212. Slot; 213. Protrusion; 3. Auxiliary device; 31. Fixing block; 32. Connecting rod; 33. Connecting plate; 34. Contact pad; 35. Rotating ring; 36. Anti-slip groove; 4. Clamping and positioning device body. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0031] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0032] Please see Figures 1 to 5 The present invention provides a clamping and positioning device for irregularly shaped parts, comprising: a mounting plate 1, a clamping and positioning device body 4 mounted on one side of the mounting plate 1, an adjusting device 2 provided on the side of the mounting plate 1 near the clamping and positioning device body 4, and auxiliary devices 3 provided on both sides of the inner wall of the clamping and positioning device body 4.
[0033] In the embodiments of this utility model, please refer to Figure 2 and Figure 3The adjusting device 2 includes a connecting frame 201, which is fixedly connected to one side of the mounting plate 1. A limit block 202 is fixedly connected to the bottom wall of the connecting frame 201. The surface of the limit block 202 is slidably connected to the inner wall of the clamping and positioning device body 4. Two connecting rods 203 are rotatably connected to the inner wall of the connecting frame 201. An adjusting plate 204 is fixedly connected to the arc surface of the connecting rod 203. A coil spring 205 is slidably connected to both ends of the arc surface of the connecting rod 203. The two ends of the coil spring 205 are fixedly connected to the side wall of the connecting frame 201 and the adjusting plate 204, respectively. An abutment block 206 is fixedly connected to one side of the adjusting plate 204. Connecting blocks 207 are fixedly connected to the sides of the clamping and positioning device body 4 near the two abutment blocks 206. The inner wall of the adjusting plate 204 slides through the limit block 206. The positioning rod 208 has a spring 209 fitted on its arc surface. Both ends of the spring 209 are fixedly connected to the positioning rod 208 and one side of the adjusting plate 204, respectively. The positioning rod 208 slides through the inner wall of the connecting frame 201. The irregular part clamping and positioning device body 4 is a tool used to fix and position irregularly shaped or complex parts during processing. Clamping facilitates the processing of irregular parts. Typically, the clamping and positioning device body 4 is connected to the mounting plate 1 via a screw, thus fixing the clamping and positioning device body 4. However, the stability of a screw connection is poor; over time, the screw will corrode, affecting the fixing effect of the screw on the mounting plate 1. If the clamping and positioning device body 4 is of poor quality, it will be unable to clamp irregularly shaped parts. The clamping and positioning device body 4, installed via a screw, will have poor performance. In this case, the clamping and positioning device body 4 can be installed on the mounting plate 1 by adjusting the device 2, thereby increasing the installation speed and stability of the clamping and positioning device body 4, and improving the clamping effect of the clamping and positioning device body 4 on irregularly shaped parts. An auxiliary block 211 is fixedly connected to one end of the arc surface of the limiting rod 208. The auxiliary block 211 is funnel-shaped. When the limiting rod 208 connects to the inner wall of the connecting frame 201, the auxiliary block 211 installed on the limiting rod 208 can reduce the angle of direct contact between the two, thereby increasing the contact speed. The connecting block 207 is close to the abutment block. A slot 212 is provided on one side of the abutment block 206. A protrusion 213 is fixedly connected to the side of the abutment block 206 near the slot 212. The protrusion 213 is slidably connected to the inner wall of the slot 212. When the abutment block 206 contacts the connecting block 207, the protrusion 213 installed on the abutment block 206 will contact the inner wall of the slot 212 on the connecting block 207. Thus, the contact between the protrusion 213 and the slot 212 can improve the stability when the connecting block 207 contacts the abutment block 206. A pull ring 210 is rotatably connected to the inner wall of the limiting rod 208. When it is necessary to pull the limiting rod 208, the pulling ring 210 installed on the limiting rod 208 can be used to pull the limiting rod 208. The pull ring 210 can improve the speed and efficiency of pulling the limiting rod 208.The limit rod 208 is made of titanium alloy. The titanium alloy material of the limit rod 208 results in a harder surface and makes it less prone to deformation even after prolonged use, thus extending its service life.
[0034] In the embodiments of this utility model, please refer to Figure 4 and Figure 5 The auxiliary device 3 includes a connecting plate 33, which is slidably connected to the side wall of the clamping and positioning device body 4. A contact pad 34 is fixedly connected to one side of the connecting plate 33. The side of the contact pad 34 away from the connecting plate 33 has anti-slip texture. A connecting rod 32 is fixedly connected to the side of the connecting plate 33 away from the contact pad 34. A fixing block 31 is slidably connected to the arc surface of the connecting rod 32. The two fixing blocks 31 are fixedly connected to the two sides of the clamping and positioning device body 4 respectively. A rotating ring 35 is threadedly connected to the arc surface of the connecting rod 32. When using the clamping and positioning device body 4 to clamp irregular parts, the auxiliary device 3 can be installed on the clamping and positioning device body 4, thereby improving the stability of clamping the clamping and positioning device body 4 with the irregular parts and improving the accuracy of processing irregular parts. The arc surface of the rotating ring 35 has several anti-slip grooves 36, which are evenly distributed on the rotating ring 35. When the rotating ring 35 is rotated on the connecting rod 32, the anti-slip groove 36 opened on the rotating ring 35 can increase the friction of the surface of the rotating ring 35, thereby improving the stability of rotating the rotating ring 35 on the connecting rod 32 through the anti-slip groove 36.
[0035] The working principle of the irregular part clamping and positioning device provided by this utility model is as follows: Align the inner wall of the clamping and positioning device body 4 with the surface of the limiting block 202, and make one side of the clamping and positioning device body 4 contact the bottom wall of the connecting frame 201 through the limiting block 202. At this time, the limiting rod 208 can be pulled. The movement of the limiting rod 208 will cause the spring 209 to be stretched, which will rotate the angle of the adjusting plate 204. The movement of the adjusting plate 204 will cause the connecting rod 203 to rotate within the connecting frame 201. The movement of the connecting rod 203 can drive... When the coil spring 205 deforms, it can drive the adjusting plate 204 to move to the side of the connecting frame 201, aligning the limiting rod 208 with the inner wall of the connecting frame 201. Then the limiting rod 208 can be released, and the spring 209 can be reset, which can drive the limiting rod 208 to connect with the inner wall of the connecting frame 201 through the adjusting plate 204. This fixes the adjusting plate 204 to one side of the connecting frame 201. The abutment block 206 installed on the adjusting plate 204 will contact the connecting block 207, thereby fixing the clamping and positioning device body 4 inside the connecting frame 201.
[0036] The connecting rod 32 is passed through the fixing block 31, and one side of the connecting plate 33 is brought into contact with the side wall of the clamping and positioning device body 4. At this time, the rotating ring 35 can be rotated on the connecting rod 32. By rotating the rotating ring 35, the connecting plate 33 can be fixed on the side wall of the clamping and positioning device body 4. Thus, the stability of the contact between the clamping and positioning device body 4 and the irregular part can be improved by the contact pad 34.
[0037] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.
[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A device for clamping and positioning a profiled part, characterized in that include: Mounting plate (1), on one side of which a clamping and positioning device body (4) is mounted. An adjusting device (2) is provided on the side of the mounting plate (1) near the clamping and positioning device body (4). The adjusting device (2) includes a connecting frame (201), which is fixedly connected to one side of the mounting plate (1). A limiting block (202) is fixedly connected to the bottom wall of the connecting frame (201). The surface of the limiting block (202) is slidably connected to the inner wall of the clamping and positioning device body (4). Two connecting rods (203) are rotatably connected to the inner wall of the connecting frame (201). An adjusting plate (204) is fixedly connected to the arc surface of the connecting rods (203). Both ends of the arc surface are slidably connected to coil springs (205). The two ends of the coil springs (205) are fixedly connected to the side wall of the connecting frame (201) and the adjusting plate (204) respectively. A stop block (206) is fixedly connected to one side of the adjusting plate (204). The clamping and positioning device body (4) is fixedly connected to the side of the two stop blocks (206) with connecting blocks (207). The inner wall of the adjusting plate (204) is slidably penetrated by a limit rod (208). A spring (209) is sleeved on the arc surface of the limit rod (208). The two ends of the spring (209) are fixedly connected to the limit rod (208) and one side of the adjusting plate (204) respectively. The limit rod (208) is slidably penetrated by the inner wall of the connecting frame (201).
2. A device for clamping and positioning a profiled part according to claim 1, characterized in that An auxiliary block (211) is fixedly connected to one end of the arc surface of the limiting rod (208), and the auxiliary block (211) is funnel-shaped.
3. A device for clamping and positioning a profiled part according to claim 1, characterized in that The connecting block (207) has a slot (212) on the side near the abutting block (206), and a protrusion (213) is fixedly connected to the side of the abutting block (206) near the slot (212). The protrusion (213) is slidably connected to the inner wall of the slot (212).
4. A device for clamping and positioning a profiled part according to claim 1, characterized in that The inner wall of the limiting rod (208) is rotatably connected to a pull ring (210).
5. A device for clamping and positioning a profiled part according to claim 1, characterized in that The limiting rod (208) is a titanium alloy rod.
6. A device for clamping and positioning a profiled part according to claim 1, characterized in that The clamping and positioning device body (4) has auxiliary devices (3) on both sides of its inner wall. The auxiliary devices (3) include a connecting plate (33). The connecting plate (33) is slidably connected to the side wall of the clamping and positioning device body (4). A contact pad (34) is fixedly connected to one side of the connecting plate (33). Anti-slip texture is provided on the side of the contact pad (34) away from the connecting plate (33). A connecting rod (32) is fixedly connected to the side of the connecting plate (33) away from the contact pad (34). A fixing block (31) is slidably connected to the arc surface of the connecting rod (32). The two fixing blocks (31) are fixedly connected to the two sides of the clamping and positioning device body (4) respectively. A rotating ring (35) is threadedly connected to the arc surface of the connecting rod (32).
7. A device for clamping and positioning a profiled part according to claim 6, characterized in that The rotating ring (35) has a plurality of anti-slip grooves (36) on its arc surface, and the plurality of anti-slip grooves (36) are evenly distributed on the rotating ring (35).