Lathe positioning fixture

Abstract

This utility model relates to the field of positioning tooling, specifically providing a lathe positioning tooling. This utility model includes a clamping assembly and a positioning assembly. The clamping assembly includes a base plate, a clamping seat fixedly connected to the top of the base plate, an adjusting handle at the left end of the clamping seat, lifting seats on both the left and right sides of the top of the clamping seat, an adjusting handle at the rear end of the sliding seat, a bottom end of the sliding seat fixedly connected to the top of the base plate, a constraint rod at the front of the top of the sliding seat, a driven rod at the front end of the constraint rod, and a sliding rod fixedly connected to the front end of the driven rod. Through the cooperation of the clamping assembly and the positioning assembly, the time spent on repeated manual calibration and clamping is reduced, the accuracy of batch processing is improved, and the labor intensity of operators is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixtures, and more particularly to lathe positioning fixtures. Background Technology

[0002] Lathe positioning fixtures are jigs used to fix and position workpieces. They ensure the position of the workpiece during machining by providing stable clamping. When used with lathes, they can greatly improve production efficiency and are widely used in the processing of parts for automobiles, machinery, aerospace and other industries.

[0003] Regarding the aforementioned technologies, the inventors believe that the following drawbacks exist: Most existing lathe positioning fixtures have a relatively simple structure and lack flexibility. When mass-producing single workpieces, it is difficult to ensure the consistency of the workpiece position each time, often requiring manual measurement and adjustment, which is time-consuming and labor-intensive, reducing production efficiency and increasing the workload of operators. Utility Model Content

[0004] To address the shortcomings of existing lathe positioning fixtures, which often suffer from simplistic and inflexible structures, making it difficult to ensure consistent workpiece positioning during mass production of single workpieces, manual measurement and adjustment are frequently required. This process is time-consuming, labor-intensive, reduces production efficiency, and increases the workload for operators. Therefore, this application provides a lathe positioning fixture.

[0005] This application provides a lathe positioning fixture with the following technical solution: The lathe positioning fixture includes a clamping assembly and a positioning assembly. The clamping assembly includes a base plate, and a clamping seat is fixedly connected to the top of the base plate. An adjustment handle is provided at the left end of the clamping seat. Lifting seats are provided on both the left and right sides of the top of the clamping seat. An adjustment handle is provided at the top of each lifting seat. A clamping plate is provided at the front end of each lifting seat. The positioning assembly includes a sliding seat. An adjustment handle is provided at the rear end of the sliding seat. The bottom end of the sliding seat is fixedly connected to the top of the base plate. A constraint rod is provided on the front side of the top of the sliding seat. A driven rod is provided at the front end of the constraint rod. A sliding rod is fixedly connected to the front end of the driven rod.

[0006] Further configuration includes a clamping groove at the top of the clamping seat, with a threaded rod inside the clamping groove. The left end of the threaded rod is fixed to the right end of the adjusting handle, and the right end of the threaded rod is rotatably connected to the inner wall of the right end of the clamping groove via a bearing. Two sets of nut seats are equidistantly fitted onto the outer wall of the threaded rod via opposite threads. The tops of both sets of nut seats are fixed to limit frames, and the tops of the two sets of limit frames are respectively fixedly connected to the bottom ends of the two sets of lifting seats. A lifting groove is provided at the front end of each lifting seat, with a threaded rod inside each lifting groove. The tops of the two sets of threaded rods are respectively fixedly connected to the bottom ends of the two sets of adjusting handles, and the bottom ends of the threaded rods are rotatably connected to the inner wall of the bottom end of the lifting groove via bearings. Nut seats are threaded onto the outer wall of each threaded rod, and the front ends of the two sets of nut seats are respectively fixedly connected to the rear ends of the two sets of clamping plates.

[0007] By adopting the above technical solution, the second threaded rod rotates, causing the second nut seat to move axially and drive the clamping plate. The first threaded rod rotates, causing the two sets of first nut seats to move synchronously laterally, so that the first nut seat pulls the limiting frame along the limiting groove and drives the lifting seat to move synchronously.

[0008] Further configuration includes a sliding groove at the top of the sliding seat, a threaded rod three inside the sliding groove, a threaded rod three fixedly connected to the front end of the adjusting handle three at its rear end, a bearing rotatably connected to the inner wall of the front end of the sliding groove at its front end, a nut seat three threadedly fitted onto the outer wall of the threaded rod three, a nut seat three fixedly connected to the bottom end of the constraint rod at its top end, a measuring groove two at the front end of the constraint rod, a driven rod rear end fitted into the measuring groove two, measuring groove one at the inner ends of both sets of clamping plates, and the left and right ends of the sliding rod respectively fitted into the two sets of measuring groove one.

[0009] By adopting the above technical solution, the threaded rod three screws forward, driving the nut seat three and the constraint rod to slide longitudinally between the two sets of clamps. The driven rod is driven by the constraint rod to move synchronously and slide along the measuring groove in a certain direction.

[0010] Furthermore, the top of the clamping seat has limit grooves at both the front and rear ends of the clamping groove, and the bottom of the limit frame is slidably connected to the limit grooves on both the front and rear sides.

[0011] Furthermore, limit claws are fixedly connected to the front ends of both sets of clamping plates.

[0012] Further, scale rulers are fixedly connected to both ends of the constraint rod, and limiting rectangular blocks are fixedly provided on both the front and rear sides of the outer wall of the driven rod located in the measuring groove.

[0013] Furthermore, a scale ruler is fixedly connected to the top of each of the two sets of clamps, and a limiting rectangular block is fixedly provided at both ends of the sliding rod.

[0014] Compared with related technologies, the lathe positioning fixture provided by this utility model has the following beneficial effects:

[0015] This utility model provides a lathe positioning fixture. Through the cooperation of the clamping component and the positioning component, and by setting up a transmission component consisting of a threaded rod and a nut seat, and a threaded rod and a nut seat, and in conjunction with the guide structure of the limit frame in the limit groove, the lateral synchronous displacement and longitudinal displacement of the two sets of clamping plates can be realized. The synchronous adjustment mechanism eliminates the risk of unilateral offset, ensures the axial consistency of the workpiece clamping position, reduces the time for repeated manual calibration of clamping, improves the accuracy of batch processing, and effectively reduces the labor intensity of operators.

[0016] This utility model provides a lathe positioning fixture. Through the cooperation of the clamping component and the positioning component, a displacement transmission structure with linkage between the constraint rod and the driven rod is adopted. Combined with a two-dimensional measurement system consisting of a scale one on the top of the clamping plate and a scale two on the side of the constraint rod, it provides a visual positioning reference, ensuring the accuracy of the clamping position reset, effectively shortening the personnel positioning and clamping steps, and ensuring high-efficiency multi-batch production of workpieces. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of the lathe positioning fixture provided by this utility model;

[0018] Figure 2 This is a top view of the overall structure of this utility model;

[0019] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;

[0020] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B;

[0021] Figure 5 This utility model Figure 2 Enlarged structural diagram at point C.

[0022] The diagram is labeled as follows: 1. Clamping assembly; 101. Base plate; 102. Clamping seat; 103. Adjusting handle one; 104. Lifting seat; 105. Adjusting handle two; 106. Clamping plate; 107. Clamping groove; 108. Threaded rod one; 109. Nut seat one; 110. Limiting frame; 111. Limiting groove; 112. Lifting groove; 113. Threaded rod two; 114. Nut seat two; 115. Limiting claw; 116. Scale one; 117. Measuring groove one; 2. Positioning assembly; 201. Sliding seat; 202. Adjusting handle three; 203. Driven rod; 204. Sliding rod; 205. Sliding groove; 206. Threaded rod three; 207. Nut seat three; 208. Constraint rod; 209. Scale two; 210. Measuring groove two. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings show typical embodiments of this utility model.

[0024] Example 1:

[0025] like Figure 1-5 As shown, the lathe positioning fixture of this utility model includes a clamping assembly 1 and a positioning assembly 2. The clamping assembly 1 includes a base plate 101, and a clamping seat 102 is fixedly connected to the top of the base plate 101. An adjustment handle 103 is provided on the left end of the clamping seat 102. Lifting seats 104 are provided on both the left and right sides of the top of the clamping seat 102. An adjustment handle 105 is provided on the top of each lifting seat 104. A clamping plate 106 is provided at the front end of each lifting seat 104. The positioning assembly 2 includes a sliding seat 201. An adjustment handle 202 is provided at the rear end of the sliding seat 201. The bottom end of the sliding seat 201 is fixedly connected to the top of the base plate 101. A constraint rod 208 is provided on the front side of the top of the sliding seat 201. A driven rod 203 is provided at the front end of the constraint rod 208. A sliding rod 204 is fixedly connected to the front end of the driven rod 203.

[0026] like Figure 1-5 As shown, a clamping groove 107 is provided at the top of the clamping seat 102. A threaded rod 108 is provided inside the clamping groove 107. The left end of the threaded rod 108 is fixed to the right end of the adjusting handle 103. The right end of the threaded rod 108 is rotatably connected to the inner wall of the right end of the clamping groove 107 through a bearing. Two sets of nut seats 109 are equidistantly sleeved on the outer wall of the threaded rod 108 through opposite threads. The top ends of the two sets of nut seats 109 are fixed to limit frames 110. The top ends of the two sets of limit frames 110 are respectively fixedly connected to At the bottom of the two sets of lifting seats 104, the front end of each lifting seat 104 is provided with a lifting groove 112. Each lifting groove 112 is provided with a threaded rod 113. The top ends of the two sets of threaded rods 113 are respectively fixedly connected to the bottom ends of the two sets of adjusting handles 105. The bottom ends of the threaded rods 113 are rotatably connected to the inner wall of the bottom end of the lifting groove 112 through bearings. The outer wall of the threaded rods 113 is provided with a nut seat 114 through thread. The front ends of the two sets of nut seats 114 are respectively fixedly connected to the rear ends of the two sets of clamping plates 106.

[0027] By adopting the above technical solution, the rotation of the threaded rod 113 causes the nut seat 114 to move axially and drive the clamping plate 106. The rotation of the threaded rod 108 causes the two sets of nut seats 109 to move synchronously in the lateral direction, so that the nut seats 109 pull the limiting frame 110 along the limiting groove 111 and drive the lifting seat 104 to move synchronously.

[0028] like Figure 1-5As shown, the top of the clamping seat 102 is provided with limit grooves 111 at both the front and rear ends of the clamping groove 107, and the bottom of the limit frame 110 is slidably connected to the limit grooves 111 on both the front and rear sides.

[0029] like Figure 1-5 As shown, the front ends of both sets of clamping plates 106 are fixedly connected to limit claws 115.

[0030] In practice, the workpiece is first placed between the two sets of clamping plates 106. Then, the two sets of adjusting handles 105 are rotated simultaneously. The adjusting handles 105 drive the threaded rod 113 to rotate, which in turn drives the nut seat 114 to move. The nut seat 114 drives the clamping plate 106 to move to complete the adjustment of the clamping height. Then, the adjusting handle 103 drives the threaded rod 108 to rotate. Through the rotation of the thread, the two sets of nut seats 109 move laterally synchronously. The nut seats 109 drive the limiting frame 110 to move in the limiting groove 111. The limiting frame 110 drives the lifting seat 104 to move, which in turn drives the two sets of clamping plates 106 to move synchronously to complete the clamping and fixing of the workpiece.

[0031] Example 2:

[0032] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a lathe positioning fixture technical solution: a sliding groove 205 is provided at the top of the sliding seat 201, a threaded rod 206 is provided in the sliding groove 205, the rear end of the threaded rod 206 is fixedly connected to the front end of the adjusting handle 202, the front end of the threaded rod 206 is rotatably connected to the inner wall of the front end of the sliding groove 205 through a bearing, a nut seat 207 is threadedly fitted on the outer wall of the threaded rod 206, the top end of the nut seat 207 is fixedly connected to the bottom end of the constraint rod 208, a measuring groove 210 is provided at the front end of the constraint rod 208, the rear end of the driven rod 203 is fitted in the measuring groove 210, a measuring groove 117 is provided at the inner end of both sets of clamping plates 106, and the left and right ends of the sliding rod 204 are respectively fitted in the two sets of measuring grooves 117.

[0033] By adopting the above technical solution, the threaded rod 206 screws in, driving the nut seat 207 and the constraint rod 208 to slide longitudinally between the two sets of clamping plates 106. The driven rod 203 is driven by the constraint rod 208 to move synchronously and slide in conjunction with the sliding rod 204 along the measuring groove 117.

[0034] like Figure 1-5 As shown, scale rulers 209 are fixedly connected to both ends of the constraint rod 208, and limit rectangular blocks are fixedly provided on both the front and rear sides of the measuring groove 210 on the outer wall of the driven rod 203.

[0035] like Figure 1-5 As shown, a scale 116 is fixedly connected to the top of each of the two sets of clamping plates 106, and a limiting rectangular block is fixedly provided at both ends of the sliding rod 204.

[0036] During implementation, rotating the adjustment handle 3 202 drives the threaded rod 3 206 to rotate, and the rotation of the thread drives the nut seat 3 207 to move. The nut seat 3 207 drives the constraint rod 208 to move longitudinally between the two sets of clamping plates 106. At this time, the driven rod 203 is driven to move by the constraint rod 208. The driven rod 203 drives the sliding rod 204 to move in the measuring groove 117. The personnel can quickly reset the clamping position by using the scale 116 longitudinally set at the top of the clamping plate 106 and the scale 209 vertically set at the left and right ends of the constraint rod 208.

[0037] The advantages of this technical solution in practical applications include, but are not limited to, the following:

[0038] 1. Based on the transmission structure of threaded rod 108 and nut seat 109 and threaded rod 113 and nut seat 114, the lateral synchronous displacement and longitudinal displacement of the two sets of clamping plates 106 are realized to ensure the consistency of the clamping position.

[0039] 2. By utilizing the linkage mechanism of constraint rod 208, driven rod 203, and sliding rod 204, and in conjunction with the dual-dimensional measurement system of scale one 116 and scale two 209, the clamping position can be quickly and accurately reset.

[0040] This technical solution first places the workpiece between two sets of clamping plates 106. Then, simultaneously rotate two sets of adjusting handles 105. Adjusting handles 105 drive threaded rods 113 to rotate, thereby moving nut seats 114. Nut seats 114 then move clamping plates 106 to adjust the clamping height. Next, rotating adjusting handle 103 drives threaded rod 108 to rotate. This rotation of the threaded rod causes two sets of nut seats 109 to move laterally synchronously. Nut seats 109 move limit frames 110 within limit grooves 111. Limit frames 110 then move lifting seats 104, thus synchronously moving... The two sets of clamping plates 106 move to clamp and fix the workpiece. Rotating the adjustment handle 3 202 drives the threaded rod 3 206 to rotate. The rotation of the thread drives the nut seat 3 207 to move. The nut seat 3 207 drives the constraint rod 208 to move longitudinally between the two sets of clamping plates 106. At this time, the driven rod 203 is driven to move by the constraint rod 208. The driven rod 203 drives the sliding rod 204 to move in the measuring groove 117. The personnel can quickly reset the clamping position by using the scale 116 longitudinally set at the top of the clamping plate 106 and the scale 209 vertically set at the left and right ends of the constraint rod 208.

[0041] The above are merely exemplary embodiments of this disclosure and should not be construed as limiting the scope of this disclosure. Any equivalent changes and modifications made in accordance with the teachings of this disclosure shall still fall within the scope of this disclosure. Those skilled in the art will readily conceive of other embodiments of this disclosure upon considering the specification and practical application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not described in this disclosure.

Claims

1. A lathe positioning fixture, comprising a clamping assembly (1) and a positioning assembly (2), characterized in that: The clamping assembly (1) includes a base plate (101), a clamping seat (102) is fixedly connected to the top of the base plate (101), an adjustment handle (103) is provided on the left end of the clamping seat (102), lifting seats (104) are provided on both the left and right sides of the top of the clamping seat (102), an adjustment handle (105) is provided on the top of the lifting seats (104), and a clamping plate (106) is provided at the front end of the lifting seats (104). The positioning assembly (2) includes a sliding seat (201), an adjustment handle (202) is provided at the rear end of the sliding seat (201), the bottom end of the sliding seat (201) is fixedly connected to the top of the base plate (101), a constraint rod (208) is provided on the front side of the top of the sliding seat (201), a driven rod (203) is provided at the front end of the constraint rod (208), and a sliding rod (204) is fixedly connected to the front end of the driven rod (203).

2. The lathe positioning fixture according to claim 1, characterized in that, The clamping seat (102) has a clamping groove (107) at its top. A threaded rod (108) is provided inside the clamping groove (107). The left end of the threaded rod (108) is fixed to the right end of the adjusting handle (103). The right end of the threaded rod (108) is rotatably connected to the inner wall of the right end of the clamping groove (107) through a bearing. Two sets of nut seats (109) are equidistantly sleeved on the outer wall of the threaded rod (108) through opposite threads. The top ends of the two sets of nut seats (109) are fixed to limit frames (110). The top ends of the two sets of limit frames (110) are respectively fixedly connected to At the bottom of the two sets of lifting seats (104), the front end of each lifting seat (104) is provided with a lifting groove (112), and each lifting groove (112) is provided with a threaded rod (113). The top ends of the two sets of threaded rods (113) are respectively fixedly connected to the bottom ends of the two sets of adjusting handles (105). The bottom ends of the threaded rods (113) are rotatably connected to the inner wall of the bottom end of the lifting groove (112) through bearings. The outer wall of the threaded rods (113) is provided with a nut seat (114) through thread. The front ends of the two sets of nut seats (114) are respectively fixedly connected to the rear ends of the two sets of clamps (106).

3. The lathe positioning fixture according to claim 1, characterized in that, The sliding seat (201) has a sliding groove (205) at its top end. A threaded rod (206) is provided in the sliding groove (205). The rear end of the threaded rod (206) is fixedly connected to the front end of the adjusting handle (202). The front end of the threaded rod (206) is rotatably connected to the inner wall of the front end of the sliding groove (205) through a bearing. A nut seat (207) is threadedly fitted onto the outer wall of the threaded rod (206). The top end of the nut seat (207) is fixedly connected to the bottom end of the constraint rod (208). A measuring groove (210) is provided at the front end of the constraint rod (208). The rear end of the driven rod (203) is fitted into the measuring groove (210). A measuring groove (117) is provided at the inner end of both sets of clamps (106). The left and right ends of the sliding rod (204) are respectively fitted into the two sets of measuring grooves (117).

4. The lathe positioning fixture according to claim 2, characterized in that, The top of the clamping seat (102) is provided with limit grooves (111) at both the front and rear ends of the clamping groove (107), and the bottom of the limit frame (110) is slidably connected to the limit grooves (111) on both the front and rear sides.

5. The lathe positioning fixture according to claim 1, characterized in that, Both sets of clamps (106) are fixedly connected to limit claws (115) at their front ends.

6. The lathe positioning fixture according to claim 3, characterized in that, The constraint rod (208) is fixedly connected to a scale ruler (209) at both ends, and the outer wall of the driven rod (203) is fixedly provided with a limiting rectangular block on both the front and rear sides of the measuring groove (210).

7. The lathe positioning fixture according to claim 3, characterized in that, Both sets of clamps (106) are fixedly connected to a scale ruler (116) at their top ends, and the sliding rod (204) is fixedly provided with a limiting rectangular block at both ends.

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