Adjustable positioning device of surface grinding machine
By designing an adjustable positioning device, and utilizing a combination of screw, clamping block and limiting hole, the workpiece angle can be quickly adjusted and fixed, solving the problem of workpiece re-clamping and positioning in the existing technology, and improving processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2026-03-17
AI Technical Summary
Existing surface grinders require the workpiece to be removed and re-clamped and positioned when machining workpieces at different angles, resulting in wasted time.
An adjustable positioning device was designed, which includes a support platform, a grinding machine, a positioning component, and a limit card. The angle adjustment and fixation of the workpiece are achieved through the combination of a screw, a clamping block, and a limit hole.
The workpiece angle can be adjusted quickly, reducing the time required for re-clamping and positioning, and improving processing efficiency.
Smart Images

Figure CN223998147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surface grinding technology, specifically to an adjustable positioning device for a surface grinding machine. Background Technology
[0002] A surface grinder is a type of grinding machine that grinds workpieces by rotating a grinding wheel to meet usage requirements. Before processing a workpiece, a clamping assembly is needed to hold and fix the workpiece to prevent it from shifting during processing and affecting the processing effect.
[0003] In existing surface grinding machines, the clamping assembly is usually fixedly connected to the grinding machine body. Once the workpiece is clamped and fixed in place using the clamping assembly, the angle of the workpiece cannot be adjusted. When using the grinding machine to process different angles of the workpiece, the workpiece needs to be removed and re-clamped and positioned, which is quite time-consuming.
[0004] Therefore, this utility model provides an adjustable positioning device for a surface grinder to solve the problems mentioned above. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model designs an adjustable positioning device for a surface grinder. This adjustable positioning device aims to solve the technical problem that, under existing technologies, when using a grinder to process workpieces at different angles, it is necessary to remove the workpiece and re-clamp and position it.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An adjustable positioning device for a surface grinder includes a support table, a grinder is movably connected to the left end of the top of the support table, a through hole is provided on the top of the support table and to the right of the grinder, and a positioning component is rotatably connected to the top of the support table and inside the through hole.
[0008] The positioning assembly includes a connecting shaft, a support plate, a baffle, a screw, a clamping block, and limiting holes. The connecting shaft is rotatably connected to the top of the support platform. Both sets of support plates are fixedly connected to the outside of the connecting shaft. The baffle is fixedly connected between the two sets of support plates. The screw is threadedly connected to the central axis of the rear set of the two support plates. The clamping block is rotatably connected to the left end of the screw. Several sets of limiting holes are opened on the left side of the front set of the two support plates, and the several sets of limiting holes are evenly distributed with the connecting shaft as the center.
[0009] As a preferred embodiment of this utility model, a protective pad is fixedly connected to the right side of the front set of the two sets of support plates, and an anti-slip pad is fixedly connected to the surface of the clamping block.
[0010] As a preferred embodiment of this utility model, a limiting card is embedded at the position corresponding to the limiting hole on the front side of the support platform, and the limiting card is engaged with the limiting hole.
[0011] As a preferred embodiment of this utility model, the limiting card includes an outer sleeve, a limiting slide post, a spring, and a blocking block. The outer sleeve is embedded in the front side of the support platform, the limiting slide post is slidably connected to the inner side of the outer sleeve, the spring is sleeved on the outer side of the limiting slide post and located inside the outer sleeve, and the blocking block is fixedly connected to the outer side of the limiting slide post and located at the right end of the spring.
[0012] As a preferred embodiment of this utility model, the bottom of the grinder is slidably connected with two sets of sliding rods, and the front and rear ends of the two sets of sliding rods are fixedly connected with movable sliders.
[0013] As a preferred embodiment of this utility model, two sets of support slide rods are fixedly connected to the front and rear sides of the top of the support platform, and the movable slider is slidably connected to the support slide rods.
[0014] As a preferred embodiment of this utility model, the top of the movable slider is provided with a sliding hole, a locking block is slidably connected to the inner side of the sliding hole, and a fastening bolt is rotatably connected to the top of the locking block, and the fastening bolt is threadedly connected to the movable slider.
[0015] As a preferred embodiment of this utility model, the bottom of the card block is provided with a card groove, the inner diameter of which is equal to the outer diameter of the supporting slide rod.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] This invention, through the design of the positioning component and the limiting clip, allows for convenient and quick angle adjustment of the workpiece during use. First, the workpiece is placed above the baffle. Then, the screw is rotated to push the clamping block to hold and fix the workpiece. Next, the grinder is moved to the left side of the workpiece to grind its surface. When the workpiece needs to be angled for processing, simply pull the limiting slide pin to the left. Once the limiting slide pin separates from the limiting hole, rotate the positioning component to adjust the workpiece angle. After the angle adjustment is complete, release the limiting slide pin, allowing it to insert into the corresponding limiting hole, thus fixing the position of the positioning component and fixing the workpiece angle adjustment. This enhances practicality by making workpiece angle adjustment convenient and quick. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the positioning component structure in this utility model;
[0020] Figure 3This is a schematic diagram of the positioning component structure in this utility model;
[0021] Figure 4 for Figure 1 Enlarged view of point A in the middle;
[0022] Figure 5 This is a schematic diagram of the limiting card structure in this utility model.
[0023] In the diagram: 1. Support platform; 2. Grinding machine; 3. Through hole; 4. Positioning component; 401. Connecting shaft; 402. Support plate; 403. Baffle; 404. Screw; 405. Clamping block; 406. Limiting hole; 5. Protective pad; 6. Anti-slip pad; 7. Limiting clip; 701. Outer sleeve; 702. Limiting slide column; 703. Spring; 704. Blocking block; 8. Sliding rod; 9. Moving slider; 10. Supporting slide rod; 11. Sliding hole; 12. Clip; 13. Fastening bolt; 14. Slot. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0025] Example:
[0026] This utility model provides an adjustable positioning device for a surface grinder. The adjustable positioning device for the surface grinder aims to solve the technical problem that when using a grinder to process workpieces at different angles, it is necessary to remove the workpiece and re-clamp and position it.
[0027] Please see Figures 1-5 This utility model provides a technical solution:
[0028] An adjustable positioning device for a surface grinder includes a support table 1, a grinder 2 is movably connected to the left end of the top of the support table 1, a through hole 3 is opened on the top of the support table 1 and on the right side of the grinder 2, and a positioning component 4 is rotatably connected to the top of the support table 1 and inside the through hole 3.
[0029] First, please refer to Figure 1 , Figure 2 and Figure 3 The specific structure of positioning component 4 is as follows:
[0030] The positioning component 4 includes a connecting shaft 401, a support plate 402, a baffle 403, a screw 404, a clamping block 405, and limiting holes 406. The connecting shaft 401 is rotatably connected to the top of the support platform 1. Both sets of support plates 402 are fixedly connected to the outside of the connecting shaft 401. The baffle 403 is fixedly connected between the two sets of support plates 402. The screw 404 is threadedly connected to the central axis of the rear set of the two support plates 402. The clamping block 405 is rotatably connected to the left end of the screw 404. Several sets of limiting holes 406 are opened on the left side of the front set of the two support plates 402, and the several sets of limiting holes 406 are evenly distributed with the connecting shaft 401 as the center. A protective pad 5 is fixedly connected to the right side of the front set of the two support plates 402. An anti-slip pad 6 is fixedly connected to the surface of the clamping block 405.
[0031] In use, the workpiece is first placed above the baffle 403, then the screw 404 is rotated, which pushes the clamping block 405, ultimately clamping the workpiece between the clamping block 405 and the baffle 403. The protective pad 5 and the clamping block 405 can increase the clamping force on the workpiece. Since the connecting shaft 401 is rotatably connected to the top of the support platform 1, when it is necessary to change the angle of the workpiece for processing, the support plate 402 can be rotated. The support plate 402 drives the workpiece on the baffle 403 to rotate, so that the angle of the workpiece can be changed. Several sets of limiting holes 406 are used to cooperate with the limiting slide pin 702 to limit and fix the support plate 402.
[0032] For further details, please refer to Figure 1 and Figure 5 A limit card 7 is embedded at the position corresponding to the limit hole 406 on the front side of the support platform 1, and the limit card 7 is engaged with the limit hole 406.
[0033] For further details, please refer to Figure 1 and Figure 5 The specific structure of the limit card 7 is as follows:
[0034] The limiting clip 7 includes an outer sleeve 701, a limiting slide post 702, a spring 703, and a blocking block 704. The outer sleeve 701 is embedded in the front side of the support platform 1. The limiting slide post 702 is slidably connected to the inner side of the outer sleeve 701. The spring 703 is sleeved on the outer side of the limiting slide post 702 and located inside the outer sleeve 701. The blocking block 704 is fixedly connected to the outer side of the limiting slide post 702 and located at the right end of the spring 703.
[0035] In use, when the limiting slide 702 is pulled to the left, it moves to the left and eventually separates from the limiting hole 406. When the limiting slide 702 moves to the left, it will drive the blocking block 704 to move to the left. When the blocking block 704 moves to the left, it will compress the spring 703. After the workpiece angle is adjusted, the limiting slide 702 is released, and the spring 703 pushes the blocking block 704 in the opposite direction. The blocking block 704 moves to the right, thereby driving the limiting slide 702 to move to the right, so that the limiting slide 702 is inserted into the corresponding limiting hole 406, thereby fixing the position of the positioning component 4.
[0036] For further details, please refer to Figure 1 and Figure 4 The bottom of the grinder 2 is slidably connected with two sets of sliding rods 8, and the front and rear ends of the two sets of sliding rods 8 are fixedly connected with movable sliders 9. The front and rear sides of the top of the support platform 1 are fixedly connected with two sets of support slide rods 10, and the movable sliders 9 are slidably connected with the support slide rods 10.
[0037] During use, the grinder 2 can move back and forth above the two sets of sliding rods 8, and the movable slider 9 can slide left and right between the support sliding rods 10 on both sides, thereby driving the two sets of sliding rods 8 to move left and right, thus driving the grinder 2 to move left and right.
[0038] For further details, please refer to Figure 1 and Figure 4 The top of the movable slider 9 is provided with a sliding hole 11, and a locking block 12 is slidably connected to the inner side of the sliding hole 11. The top of the locking block 12 is rotatably connected with a fastening bolt 13, and the fastening bolt 13 is threadedly connected to the movable slider 9. The bottom of the locking block 12 is provided with a locking groove 14, and the inner diameter of the locking groove 14 is equal to the outer diameter of the supporting slide rod 10.
[0039] When it is necessary to fix the distance between the grinder 2 and the workpiece during use, the fastening bolt 13 can be rotated. When the fastening bolt 13 rotates, it drives the locking block 12 to slide downward inside the sliding hole 11. Finally, the locking groove 14 at the bottom of the locking block 12 locks the supporting sliding rod 10, thereby fixing the moving slider 9 and fixing the positions of the two sets of sliding rods 8, thus fixing the distance between the grinder 2 and the workpiece, which facilitates grinding the surface of the workpiece.
[0040] The working process of this utility model:
[0041] In use, the workpiece is first placed above the baffle 403, then the screw 404 is rotated, pushing the clamping block 405, ultimately clamping the workpiece between the clamping block 405 and the baffle 403. The protective pad 5 and the clamping block 405 increase the clamping force on the workpiece. After the workpiece is clamped and fixed, the grinder 2 is moved to the left side of the workpiece. The movement of the grinder 2 is accomplished by the cooperation of two sets of sliding rods 8, a moving slider 9, and a supporting sliding rod 10. The grinder 2 can move back and forth above the two sets of sliding rods 8, and the moving slider 9 can slide left and right between the supporting sliding rods 10 on both sides, thereby driving the two sets of sliding rods 8 to move left and right, thus driving the grinder 2 to move left and right. Then, by rotating the fastening bolt 13, the fastening bolt 13 drives the locking block 12 to slide downward inside the sliding hole 11. Finally, the locking groove 14 at the bottom of the locking block 12 locks the supporting sliding rod 10. The positioning assembly 4 is tightened to fix the distance between the grinder 2 and the workpiece, thus facilitating the grinding of the workpiece surface. When the workpiece needs to be processed at a different angle, simply pull the limiting slide 702 to the left. As the limiting slide 702 moves to the left, it drives the blocking block 704 to move to the left. As the blocking block 704 moves to the left, it compresses the spring 703. After the limiting slide 702 finally separates from the limiting hole 406, rotate the positioning assembly 4. The positioning assembly 4 drives the workpiece to rotate to adjust the angle of the workpiece. After the angle of the workpiece is adjusted, release the limiting slide 702. The spring 703 pushes the blocking block 704 in the opposite direction. The blocking block 704 moves to the right, thereby driving the limiting slide 702 to move to the right, so that the limiting slide 702 is inserted into the corresponding limiting hole 406. This fixes the position of the positioning assembly 4 and fixes the angle adjustment of the workpiece. The angle adjustment of the workpiece is convenient and quick, increasing its practicality.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An adjustable positioning device for a surface grinding machine comprising a support table (1), characterized in that: The left end of the top of the support table (1) is movably connected with a sander (2), a through hole (3) is arranged on the top of the support table (1) and located to the right of the sander (2), and a positioning assembly (4) is rotatably connected to the top of the support table (1) and located to the inside of the through hole (3); The positioning assembly (4) comprises a connecting shaft (401), a support plate (402), a baffle (403), a screw rod (404), a clamping block (405) and a limiting hole (406), the connecting shaft (401) is rotatably connected to the top of the support table (1), two groups of support plates (402) are fixedly connected to the outside of the connecting shaft (401), the baffle (403) is fixedly connected between the two groups of support plates (402), the screw rod (404) is threadedly connected to the central axis of one group of the rear of the two support plates (402), the clamping block (405) is rotatably connected to the left end of the screw rod (404), and a plurality of groups of limiting holes (406) are arranged on the left side of one group of the front of the two support plates (402) and are evenly distributed around the connecting shaft (401).
2. An adjustable positioning device for a surface grinder as claimed in claim 1, wherein: A protective pad (5) is fixedly connected to the right side of one group of the front of the two support plates (402), and a non-slip pad (6) is fixedly connected to the surface of the clamping block (405).
3. An adjustable positioning device for a surface grinder as defined in claim 1, wherein: The front side of the support table (1) is embedded with a limiting clamp (7) at a position corresponding to the limiting hole (406), and the limiting clamp (7) is clamped with the limiting hole (406).
4. An adjustable positioning device for a surface grinder as claimed in claim 3, wherein: The limiting clamp (7) comprises an outer sleeve (701), a limiting slide column (702), a spring (703) and a blocking block (704), the outer sleeve (701) is embedded in the front side of the support table (1), the limiting slide column (702) is slidably connected to the inside of the outer sleeve (701), the spring (703) is sleeved on the outside of the limiting slide column (702) and located in the inside of the outer sleeve (701), and the blocking block (704) is fixedly connected to the outside of the limiting slide column (702) and located at the right end of the spring (703).
5. An adjustable positioning device for a surface grinder as defined in claim 1, wherein: The bottom of the sander (2) is slidably connected with two groups of sliding rods (8), and the front and rear ends of the two groups of sliding rods (8) are fixedly connected with moving blocks (9).
6. An adjustable positioning device for a surface grinder as claimed in claim 5, wherein: The front and rear sides of the top of the support table (1) are fixedly connected with two groups of supporting sliding rods (10), and the moving blocks (9) are slidably connected with the supporting sliding rods (10).
7. An adjustable positioning device for a surface grinder as claimed in claim 6, wherein: The top end of the moving block (9) is provided with a sliding hole (11), the inside of the sliding hole (11) is slidably connected with a clamping block (12), the top of the clamping block (12) is rotatably connected with a fastening bolt (13), and the fastening bolt (13) is threadedly connected with the moving block (9).
8. An adjustable positioning device for a surface grinder as claimed in claim 7, wherein: The bottom of the clamping block (12) is provided with a clamping groove (14), and the inner diameter of the clamping groove (14) is equal to the outer diameter of the supporting sliding rod (10).