Angle error adjusting structure of rotating shaft and bench vice

Abstract

The utility model relates to a mechanical assembly error adjusting structure, in particular to an angle error adjusting structure of a rotating shaft and a bench vice, the adjusting structure comprises the rotating shaft and a connecting ring, the rotating shaft is provided with a sliding groove, and the connecting ring is provided with an adjusting key; two through holes are formed in the adjusting key; the adjusting key is provided with two adjusting seams; a fixing block is formed between the two through holes; adjusting blocks are formed on the sides, away from each other, of the two through holes respectively. The two through holes are respectively connected with back shore pieces; the fixing block, the two adjusting blocks, the two through holes, the two adjusting seams and the two jacking pieces jointly form an angle adjusting part, and the angle adjusting part is arranged in the sliding groove in a penetrating and inserting mode. The bench vice is provided with the connecting ring. After the technical scheme is adopted, the sizes of the two through holes are changed through the jacking piece, so that the connecting ring and the connecting pipe base rotate relatively, and then the first tong head and the second tong head rotate relatively, the angle error is adjusted, and the angle error of the bench vice is easy and convenient to adjust.

Description

Technical Field

[0001] This utility model relates to a mechanical assembly error adjustment structure, specifically to an angle error adjustment structure for a rotating shaft and a bench vise. Background Technology

[0002] A bench vise is a general-purpose clamping tool used to hold workpieces and is one of the essential tools for fitters. A bench vise mainly consists of a movable jaw, a fixed jaw, a lead screw, and a guide nut. The guide nut is mounted on the fixed jaw, and the lead screw is mounted on the movable jaw. The movable jaw has a first jaw, and the fixed jaw has a second jaw. The first and second jaws are arranged symmetrically facing each other, forming jaws. The operator rotates the lead screw, causing it to move along the axis of the guide nut, thereby bringing the first jaw closer to the second jaw. The closing of the jaws then clamps the workpiece.

[0003] However, errors are inevitable during the processing or installation of the first or second jaw. When the projections of the first and second jaws on the plane with the axis of the lead screw as the normal are at an angle after installation (i.e., there is an angular error between the first and second jaws), it is often necessary to re-grind to reduce the angular error between the first and second jaws. However, adjusting the angular error by re-grinding is relatively troublesome.

[0004] In view of this, the applicant has conducted in-depth research on the above-mentioned issues, which led to this case. Utility Model Content

[0005] The purpose of this utility model is to provide an angle error adjustment structure and a bench vise that facilitates the adjustment of angle error.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An angle error adjustment structure for a rotating shaft includes a rotating shaft and a connecting ring sleeved on the rotating shaft. The rotating shaft has a sliding groove, and an adjustment key is provided within the space enclosed by the connecting ring.

[0008] The adjusting key has two through holes arranged parallel to the axis of the connecting ring, the two through holes are arranged symmetrically, and the axis of the connecting ring is located on the plane of symmetry of the two through holes.

[0009] One side of the adjusting key is fixed to the connecting ring, and the other side of the adjusting key has two adjusting slots arranged in a one-to-one correspondence with the two through holes; each adjusting slot communicates with the corresponding through hole, and each adjusting slot completely penetrates the adjusting key in the axial direction of the connecting ring;

[0010] A fixing block is formed between the two through holes;

[0011] Adjustment blocks are formed on the opposite sides of the two through holes; top supports are connected to each of the two through holes in a one-to-one correspondence.

[0012] The fixed block, the two adjusting blocks, the two through holes, the two adjusting slots, and the two top supports together constitute the angle adjusting part;

[0013] The angle adjustment part is interposed within the slide groove.

[0014] Preferably, the two through holes are a first hole and a second hole, respectively;

[0015] The two adjusting seams are the first seam and the second seam, respectively;

[0016] The first slit is arranged corresponding to the first hole, and the first slit passes through the first hole radially.

[0017] The second slit is arranged corresponding to the second hole, and the second slit passes through the second hole radially.

[0018] Preferably, a first groove is formed on the wall of the first hole, which is arranged opposite to the first slit;

[0019] The second hole has a second groove arranged opposite to the second slit on its wall.

[0020] Preferably, each of the top support members is a threaded rod;

[0021] One end of the first hole has a first internal thread section, and the threaded rod corresponding to the first hole is helically connected to the first internal thread section;

[0022] One end of the second hole has a second internal thread section, and the threaded rod corresponding to the second hole is helically connected to the second internal thread section.

[0023] Preferably, the first internal thread segment is a straight thread segment, and the threaded rod corresponding to the first hole is a tapered threaded rod, with the nominal diameter of the straight thread segment being between the nominal diameter of the small end of the tapered threaded rod and the nominal diameter of the large end of the tapered threaded rod; or the first internal thread segment is a tapered thread segment, and the threaded rod corresponding to the first hole is a tapered threaded rod; or the first internal thread segment is a tapered thread segment, and the threaded rod corresponding to the first hole is a straight threaded rod, with the nominal diameter of the straight threaded rod being between the nominal diameter of the small end of the tapered thread segment and the nominal diameter of the large end of the tapered thread segment.

[0024] Preferably, the adjustment key is integrally connected to the connecting ring;

[0025] Alternatively, the connecting ring may have a fixed keyway, and the adjusting key may be integrally connected to a fixed key. The fixed key is located on the side of the two through holes away from the two adjusting slots, and the fixed key is inserted into the fixed keyway and has an interference fit with the fixed keyway.

[0026] After adopting the above technical solution, when there is an angular error between the connecting ring and the rotating shaft, by setting an adjustment key with an angle adjustment part on the connecting ring, and changing the size of the two through holes by the top support, the position of the fixing block in the slide groove can be adjusted, thereby causing the connecting ring to rotate around the rotating shaft and adjust the angle, so that the angular error is relatively small and the adjustment of the angular error is simple and convenient.

[0027] A bench vise includes a movable jaw and a fixed jaw, which cooperate with each other. The movable jaw is provided with a first jaw head, and the fixed jaw is provided with a second jaw head arranged facing the first jaw head. Its characteristic is that:

[0028] The fixing clamp body is equipped with a connecting ring, and an adjustment key is provided within the space enclosed by the connecting ring;

[0029] The adjusting key has two through holes arranged parallel to the axis of the connecting ring, the two through holes are arranged symmetrically, and the axis of the connecting ring is located on the plane of symmetry of the two through holes.

[0030] One side of the adjusting key is fixed to the connecting ring, and the other side of the adjusting key has two adjusting slots arranged in a one-to-one correspondence with the two through holes; each adjusting slot communicates with the corresponding through hole, and each adjusting slot completely penetrates the adjusting key in the axial direction of the connecting ring;

[0031] A fixing block is formed between the two through holes;

[0032] Adjustment blocks are formed on the opposite sides of the two through holes; top supports are connected to each of the two through holes in a one-to-one correspondence.

[0033] The fixed block, the two adjusting blocks, the two through holes, the two adjusting slots, and the two top supports together constitute the angle adjusting part;

[0034] The second clamp head is fixed to the connecting ring;

[0035] The movable clamp body includes a connecting tube seat slidably connected to the fixed clamp body. The connecting tube seat is cylindrical, and its outer diameter matches the inner diameter of the connecting ring. The first clamp head is fixedly connected to the connecting tube seat. A sliding groove is provided on the outer side of the connecting tube seat, which is arranged parallel to the axis of the connecting ring. The connecting tube seat passes through the connecting ring, and the angle adjustment part is inserted into the sliding groove with a clearance fit.

[0036] Preferably, the fixing clamp body includes a fixing seat, the fixing seat having a sliding cavity extending through the fixing seat, the fixing seat being fixedly connected to the connecting ring, the fixing seat being fixed with an adjusting sleeve, the connecting ring being located on the side of the sliding cavity closer to the first clamp head, and the adjusting sleeve being located at the end of the sliding cavity away from the first clamp head; the connecting tube seat is inserted into the sliding cavity;

[0037] An adjusting screw is provided inside the connecting pipe seat, and the adjusting screw passes through the connecting pipe seat and is rotatably connected to the connecting pipe seat;

[0038] The adjusting sleeve and the adjusting screw are coaxially arranged with the connecting ring; the adjusting sleeve and the adjusting screw are helically connected.

[0039] Preferably, a rotating cylinder is provided between the connecting ring and the connecting tube seat, and is coaxially arranged with the connecting ring. The rotating cylinder is rotatably connected to the sliding cavity. The rotating cylinder has a positioning hole, and the adjusting key is inserted through the positioning hole. The connecting ring is indirectly fixedly connected to the fixed seat through a fixed connection to the rotating cylinder.

[0040] The fixed base has a threaded hole, and a locking bolt is helically connected to the threaded hole. The locking bolt abuts against the rotating cylinder.

[0041] After adopting the above technical solution, when there is a machining error or installation error in the first or second jaw, resulting in an angular error between the first and second jaws, the size of the two through holes is changed by the top support, and the position of the fixing block in the slide groove is adjusted, so that the connecting pipe seat and the connecting ring rotate relative to each other, thereby causing the first and second jaws to rotate relative to each other, thus adjusting the angular error between the first and second jaws. The angular error adjustment of the bench vise is simple and convenient.

[0042] A bench vise includes a movable jaw and a fixed jaw, which cooperate with each other. The movable jaw is provided with a first jaw head, and the fixed jaw is provided with a second jaw head arranged facing the first jaw head. Its characteristic is that:

[0043] The movable clamp body includes a connecting tube seat that is slidably connected to the fixed clamp body. One end of the connecting tube seat is fixed with a protruding ring, and the protruding ring is fitted with a connecting ring. An adjustment key is provided in the space enclosed by the connecting ring.

[0044] The adjusting key has two through holes arranged parallel to the axis of the connecting ring, the two through holes are arranged symmetrically, and the axis of the connecting ring is located on the plane of symmetry of the two through holes.

[0045] One side of the adjusting key is fixed to the connecting ring, and the other side of the adjusting key has two adjusting slots arranged in a one-to-one correspondence with the two through holes; each adjusting slot communicates with the corresponding through hole, and each adjusting slot completely penetrates the adjusting key in the axial direction of the connecting ring;

[0046] A fixing block is formed between the two through holes;

[0047] Adjustment blocks are formed on the opposite sides of the two through holes; top supports are connected to each of the two through holes in a one-to-one correspondence.

[0048] The fixed block, the two adjusting blocks, the two through holes, the two adjusting slots, and the two top supports together constitute the angle adjusting part;

[0049] The first clamp head is fixed to the connecting ring;

[0050] The outer diameter of the convex ring matches the inner diameter of the connecting ring;

[0051] The convex ring has a mounting groove, one end of which is close to the fixing clamp and passes through the convex ring. The angle adjustment part is inserted into the mounting groove and is fixedly connected to the mounting groove.

[0052] After adopting the above technical solution, when there is a machining error or installation error in the first or second jaw, resulting in an angular error between the first and second jaws, the size of the two through holes is changed by the top support, and the position of the fixing block in the mounting groove is adjusted so that the connecting ring and the connecting pipe seat rotate relative to each other, thereby causing the first and second jaws to rotate relative to each other, thus adjusting the angular error between the first and second jaws. The angular error adjustment of the bench vise is simple and convenient. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the connecting ring structure according to Embodiment 1 of this utility model;

[0054] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0055] Figure 3 This is a schematic diagram of the bench vise according to Embodiment 3 of this utility model;

[0056] Figure 4 This is a cross-sectional structural diagram of the bench vise according to Embodiment 3 of this utility model;

[0057] Figure 5 This is a structural schematic diagram of the bench vise from another perspective, representing Embodiment 3 of this utility model.

[0058] Figure 6 This is a schematic diagram of the rotating cylinder in Embodiment 4 of this utility model;

[0059] Figure 7 This is a schematic diagram of the connecting ring in Embodiment 2 of this utility model.

[0060] In the picture:

[0061] 100 - Connecting ring;

[0062] 200 - Adjustment key;

[0063] 210 - Angle adjustment section; 211 - First piece;

[0064] 212 - Fixed block; 213 - Second block;

[0065] 221 - First hole; 222 - Second hole;

[0066] 231 - First seam; 232 - Second seam;

[0067] 241 - First slot; 242 - Second slot;

[0068] 300 - Movable jaws; 310 - First jaw head;

[0069] 320 - Connecting pipe seat; 321 - Slide groove;

[0070] 330 - Adjusting screw; 331 - Rotating handle;

[0071] 400 - Fixed clamp body; 410 - Second clamp head;

[0072] 420 - Mounting bracket; 421 - Locking bolt;

[0073] 430 - Adjusting sleeve;

[0074] 440 - Rotating cylinder; 441 - Positioning hole. Detailed Implementation

[0075] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0076] Example 1

[0077] like Figures 1-2 As shown, this embodiment provides an angle error adjustment structure for a rotating shaft, including a rotating shaft (not shown in the figure) and a connecting ring 100 sleeved on the rotating shaft. The rotating shaft has a groove, the length direction of which is the same as the axial direction of the rotating shaft. An adjustment key 200 is provided in the space enclosed by the connecting ring 100.

[0078] For ease of explanation, the side of the connecting ring 100 facing the axis of the connecting ring 100 is defined as the inner side of the connecting ring 100, and the opposite side is defined as the outer side of the connecting ring 100.

[0079] The adjustment key 200 has two through holes arranged parallel to the axis of the connecting ring 100, namely the first hole 221 and the second hole 222. The first hole 221 and the second hole 222 are arranged symmetrically, and the axis of the connecting ring 100 is located on the symmetrical plane of the first hole 221 and the second hole 222.

[0080] One side of the adjusting key 200 is fixed to the connecting ring 100. Specifically, the adjusting key 200 and the connecting ring 100 are integrally connected. The other side of the adjusting key 200 has two adjusting slots arranged in a one-to-one correspondence with the two through holes. The two adjusting slots are the first slot 231 and the second slot 232, respectively. The first slot 231 is arranged side by side with the first hole 221, and the second slot 232 is arranged side by side with the second hole 222. Each adjusting slot is connected to the corresponding through hole. Each adjusting slot completely penetrates the adjusting key 200 in the axial direction of the connecting ring 100. In this embodiment, the first slot 231 penetrates the first hole 221 radially along the first hole 221, and the second slot 232 penetrates the second hole 222 radially along the second hole 222.

[0081] A fixing block 212 is formed between the two through holes, that is, a fixing block 212 is formed between the first hole 221 and the second hole 222; an adjusting block is formed on the side of the two through holes that are far apart from each other, the two adjusting blocks are the first block 211 located on the side of the first hole 221 that is far away from the second hole 222 and the second block 213 located on the side of the second hole 222 that is far away from the first hole 221.

[0082] Each of the two through holes is connected to a top support (not shown in the figure). Specifically, each top support is a threaded rod. It should be noted that the top support can also be a pin.

[0083] One end of the first hole 221 has a first internal thread section, and the threaded rod corresponding to the first hole 221 is a first threaded rod. The first threaded rod is helically connected to the first internal thread section. One end of the second hole 221 has a second internal thread section, and the threaded rod corresponding to the second hole 221 is a second threaded rod. The second threaded rod is helically connected to the second internal thread section. The first internal thread section and the second internal thread section are located on the same side of the adjusting key 200.

[0084] The angle adjustment part 210 is composed of the fixed block 212, two adjusting blocks, two through holes, two adjusting slots and two top supports. That is, the angle adjustment part 210 is composed of the first block 211, the fixed block 212 and the second block 213.

[0085] Angle adjustment section 210 is inserted into the slide groove.

[0086] When there is an angular error between the connecting ring 100 and the rotating shaft, the size of the first hole 221 is adjusted by rotating the first threaded rod, thereby changing the distance between the first block 211 and the fixed block 212. The size of the second hole 222 is adjusted by rotating the second threaded rod, thereby adjusting the distance between the second block 213 and the fixed block 212. This adjusts the position of the fixed block 212 in the groove, thereby causing the connecting ring 100 to rotate around the rotating shaft and adjust the angle, making the angular error relatively small and the adjustment of the angular error simple and convenient.

[0087] As a preferred technical solution, the first internal thread segment is a tapered thread segment, and the first threaded rod is a straight threaded rod. The nominal diameter of the straight threaded rod is between the nominal diameter of the small end of the tapered thread segment and the nominal diameter of the large end of the tapered thread segment. In this embodiment, the nominal diameter of the large end of the tapered thread segment is 6.0 mm, the nominal diameter of the small end is 5.5 mm, the pitch is 1.0 mm, the taper is 10°, and the nominal diameter of the straight threaded rod is 6.0 mm with a pitch of 1.0 mm. It should be noted that the first internal thread segment and the first threaded rod can also adopt the following schemes: First, the first internal thread segment is a straight thread segment, and the first threaded rod is a tapered threaded rod. The nominal diameter of the straight thread segment is between the nominal diameter of the small end and the nominal diameter of the large end of the tapered threaded rod. In this embodiment, the nominal diameter of the straight thread segment is 6.0 mm, the pitch is 1.0 mm, the nominal diameter of the large end of the tapered threaded rod is 6.4 mm, the nominal diameter of the small end is 6.0 mm, the pitch is 1.0 mm, and the taper is 10°; Second, the first internal thread segment is a tapered thread segment, and the first threaded rod is a tapered threaded rod, wherein the tapered threaded rod matches the tapered thread segment.

[0088] The second internal thread segment is the same as the first internal thread segment, and the second threaded rod is the same as the first threaded rod, so they will not be described again.

[0089] Furthermore, the first hole 221 has a first groove 241 arranged opposite to the first slot 231 on its hole wall; the second hole 222 has a second groove 242 arranged opposite to the second slot 232 on its hole wall.

[0090] Example 2

[0091] The difference between this embodiment and Embodiment 1 is that the connection structure between the adjustment key 200 and the connecting ring 100 is different.

[0092] like Figure 7As shown, in this embodiment, the connecting ring 100 has a fixed keyway, and the adjusting key 200 is integrally connected to the fixed key. The fixed key is located on the side of the two through holes away from the two adjusting slots, and the fixed key is inserted into the fixed keyway and has an interference fit with the fixed keyway. With this technical solution, when the adjusting key 200 is damaged during use, the damaged adjusting key 200 can be removed from the fixed keyway and replaced with a new adjusting key 200, without having to replace the entire angle adjustment structure, which helps save costs.

[0093] Example 3

[0094] like Figures 1-6 As shown, this embodiment provides a bench vise, including a movable vise body 300 and a fixed vise body 400 that cooperate with each other. The movable vise body 300 is provided with a first jaw head 310, and the fixed vise body 400 is provided with a second jaw head 410. The second jaw head 410 and the first jaw head 310 are arranged facing each other.

[0095] The clamping body 400 is fixed with the connecting ring 100 described in Embodiment 1. Specifically, the clamping body 400 includes a fixing seat 420, which has a sliding cavity extending through it. The fixing seat 420 is fixedly connected to the connecting ring 100. An adjusting sleeve 430 is fixed to the fixing seat 420. The connecting ring 100 is located on the side of the sliding cavity closer to the first clamp head 310, and the adjusting sleeve 430 is located on the end of the sliding cavity away from the first clamp head 310. The second clamp head 410 is fixed to the outside of the connecting ring 100. For ease of explanation, the end of the sliding cavity corresponding to the connecting ring 100 is designated as the left end of the sliding cavity, and the end of the sliding cavity corresponding to the adjusting sleeve 430 is designated as the right end of the sliding cavity.

[0096] The movable clamp body 300 includes a connecting tube seat 320 slidably connected to the fixed clamp body 400, and the connecting tube seat 320 is cylindrical. The side of the connecting tube seat 320 facing its axis is called the inner side of the connecting tube seat 320, and the opposite side is called the outer side of the connecting tube seat 320. Specifically, the outer diameter of the connecting tube seat 320 matches the inner diameter of the connecting ring 100; the first clamp head 310 is fixedly connected to the connecting tube seat 320; a sliding groove 321 parallel to the axis of the connecting ring 100 is provided on the outer side of the connecting tube seat 320; the connecting tube seat 320 is inserted into the connecting ring 100; the angle adjustment part 210 of the connecting ring 100 is inserted into the sliding groove 321; the angle adjustment part 210 of the connecting ring 100 and the sliding groove 321 are in clearance fit; and the connecting tube seat 320 is inserted into the sliding cavity.

[0097] After adopting the above technical solution, when there is a machining error or installation error in the first jaw 310 or the second jaw 410, resulting in an angular error between the first jaw 310 and the second jaw 410, the size of the two through holes is changed by rotating the two threaded rods, and the position of the fixing block 212 in the slide groove is adjusted, so that the connecting pipe seat 320 and the connecting ring 100 rotate relative to each other, thereby causing the first jaw 310 and the second jaw 410 to rotate relative to each other, thereby adjusting the angular error between the first jaw 310 and the second jaw 410. The angular error adjustment of the bench vise is simple and convenient.

[0098] An adjusting screw 330 is provided inside the connecting pipe seat 320. The adjusting screw 330 passes through the connecting pipe seat 320 and is rotatably connected to the connecting pipe seat 320. The adjusting sleeve 430 and the adjusting screw 330 are respectively arranged coaxially with the connecting ring 100. The adjusting sleeve 430 and the adjusting screw 330 are helically connected. Specifically, the adjusting sleeve 430 has an adjusting internal thread section, and the adjusting screw 330 is helically connected to the adjusting internal thread section.

[0099] In use, the length of the connecting tube seat 320 inserted into the sliding cavity is adjusted by rotating the adjusting screw 330, thereby controlling the distance between the first clamp head 310 and the second clamp head 410. Clamping is achieved by reducing the distance between the first clamp head 310 and the second clamp head 410.

[0100] Furthermore, to facilitate the rotation of the adjusting screw 330, a rotating handle 331 is installed at the end of the adjusting screw 330 away from the adjusting sleeve 430.

[0101] Example 4

[0102] refer to Figures 1-6 The difference between this embodiment and Embodiment 3 is that the connection structure between the connecting ring 100 and the fixing clamp 400 is different.

[0103] In this embodiment, a rotating cylinder 440, coaxially arranged with the connecting ring 100, is provided between the connecting ring 100 and the connecting tube seat 320. The side of the rotating cylinder 440 facing its axis is designated as the inner side of the rotating cylinder 440, and the opposite side is designated as the outer side of the rotating cylinder 440. The rotating cylinder 440 is rotatably connected to the left end of the sliding cavity. A positioning hole 441 is provided on the outer side of the rotating cylinder 440, and an adjusting key 200 is inserted into the positioning hole 441. The connecting ring 100 is indirectly fixedly connected to the fixed seat 420 through a fixed connection to the rotating cylinder 440.

[0104] The fixed base 420 has a threaded hole, and a locking bolt 421 is screwed into the threaded hole. The locking bolt 421 abuts against the outer side of the rotating cylinder 440.

[0105] When the rotating cylinder 440 needs to be adjusted, the locking bolt 421 is rotated to separate the locking bolt 421 from the rotating cylinder 440, so that the rotating cylinder 440 can be adjusted; when the rotating cylinder 440 needs to be fixed, the locking bolt 421 is rotated to make the locking bolt 421 abut against the rotating cylinder 440, so that the rotating cylinder 440 can be fixed.

[0106] After adopting the above technical solution, the rotating cylinder 440 synchronously drives the connecting ring 100 and the movable clamp 300 to rotate around the axis of the connecting ring 100, that is, drives the first clamp head 310 and the second clamp head 410 to rotate synchronously, so as to adapt to workpieces in different angle directions, avoid eccentric clamping, and the clamping effect is relatively good.

[0107] Example 5

[0108] refer to Figures 1-6 This embodiment provides a bench vise, including a movable vise body 300 and a fixed vise body 400 that cooperate with each other. The movable vise body 300 is provided with a first vise head 310, and the fixed vise body 400 is provided with a second vise head 410. The second vise head 410 and the first vise head 310 are arranged facing each other.

[0109] The movable clamp body 300 includes a connecting tube seat 320 movably connected to the fixed clamp body 400. One end of the connecting tube seat 320 is fixed with a protruding ring. The protruding ring is sleeved with the connecting ring 100 described in Embodiment 1. The first clamp head 310 is fixed to the outside of the connecting ring 100.

[0110] The outer diameter of the convex ring matches the inner diameter of the connecting ring 100; the convex ring has an installation groove, one end of which is close to the fixing clamp 400 and passes through the convex ring, and the angle adjustment part 210 is inserted into the installation groove and is fixedly connected to the installation groove.

[0111] To prevent the connecting ring 100 from sliding away from the fixed clamp 400 during clamping, the connecting tube seat 320 is also fixed with an end head at the end away from the fixed clamp 400, and the end head abuts against the connecting ring 100.

[0112] After adopting the above technical solution, when there is a machining error or installation error in the first jaw 310 or the second jaw 410, resulting in an angular error between the first jaw 310 and the second jaw 410, the size of the two through holes is changed by rotating the two threaded rods, and the position of the fixing block 212 in the mounting groove is adjusted, so that the connecting ring 100 and the connecting tube seat 320 rotate relative to each other, thereby causing the first jaw 310 and the second jaw 410 to rotate relative to each other, thereby adjusting the angular error between the first jaw 310 and the second jaw 410. The angular error adjustment of the bench vise is simple and convenient.

[0113] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, rather than to describe a specific order.

[0114] The present invention has been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the above embodiments. Those skilled in the art can make various modifications to the present invention based on the prior art, and these modifications all fall within the protection scope of the present invention.

Claims

1. A shaft angle error adjustment structure, characterized in that: It includes a rotating shaft and a connecting ring sleeved on the rotating shaft. The rotating shaft has a sliding groove, and an adjustment key is provided in the space enclosed by the connecting ring. The adjusting key has two through holes arranged parallel to the axis of the connecting ring, the two through holes are arranged symmetrically, and the axis of the connecting ring is located on the plane of symmetry of the two through holes. One side of the adjusting key is fixed to the connecting ring, and the other side of the adjusting key has two adjusting slots arranged in a one-to-one correspondence with the two through holes; each adjusting slot communicates with the corresponding through hole, and each adjusting slot completely penetrates the adjusting key in the axial direction of the connecting ring; A fixing block is formed between the two through holes; Adjustment blocks are formed on the opposite sides of the two through holes; top supports are connected to each of the two through holes in a one-to-one correspondence. The fixed block, the two adjusting blocks, the two through holes, the two adjusting slots, and the two top supports together constitute the angle adjusting part; The angle adjustment part is interposed within the slide groove.

2. The shaft angle error adjustment structure as described in claim 1, characterized in that: The two through holes are respectively the first hole and the second hole; The two adjusting seams are the first seam and the second seam, respectively; The first slit is arranged corresponding to the first hole, and the first slit passes through the first hole radially. The second slit is arranged corresponding to the second hole, and the second slit passes through the second hole radially.

3. The shaft angle error adjustment structure as described in claim 2, characterized in that: The first hole has a first groove arranged opposite to the first slot on its wall; The second hole has a second groove arranged opposite to the second slit on its wall.

4. The angle error adjustment structure for a rotating shaft as described in claim 2, characterized in that: All of the aforementioned top support components are threaded rods; One end of the first hole has a first internal thread section, and the threaded rod corresponding to the first hole is helically connected to the first internal thread section; One end of the second hole has a second internal thread section, and the threaded rod corresponding to the second hole is helically connected to the second internal thread section.

5. The shaft angle error adjustment structure as described in claim 4, characterized in that: The first internal thread segment is a straight thread segment, and the threaded rod corresponding to the first hole is a tapered threaded rod. The nominal diameter of the straight thread segment is between the nominal diameter of the small end of the tapered threaded rod and the nominal diameter of the large end of the tapered threaded rod; or the first internal thread segment is a tapered thread segment, and the threaded rod corresponding to the first hole is a tapered threaded rod; or the first internal thread segment is a tapered thread segment, and the threaded rod corresponding to the first hole is a straight threaded rod. The nominal diameter of the straight threaded rod is between the nominal diameter of the small end of the tapered thread segment and the nominal diameter of the large end of the tapered thread segment.

6. The angle error adjustment structure for a rotating shaft as described in claim 1, characterized in that: The adjustment key is integrally connected to the connecting ring; Alternatively, the connecting ring may have a fixed keyway, and the adjusting key may be integrally connected to a fixed key. The fixed key is located on the side of the two through holes away from the two adjusting slots, and the fixed key is inserted into the fixed keyway and has an interference fit with the fixed keyway.

7. A bench vise, comprising a movable jaw and a fixed jaw, which cooperate with each other, wherein the movable jaw is provided with a first jaw head, and the fixed jaw is provided with a second jaw head arranged facing the first jaw head, characterized in that: The fixing clamp body is equipped with a connecting ring, and an adjustment key is provided within the space enclosed by the connecting ring; The adjusting key has two through holes arranged parallel to the axis of the connecting ring, the two through holes are arranged symmetrically, and the axis of the connecting ring is located on the plane of symmetry of the two through holes. One side of the adjusting key is fixed to the connecting ring, and the other side of the adjusting key has two adjusting slots arranged in a one-to-one correspondence with the two through holes; each adjusting slot communicates with the corresponding through hole, and each adjusting slot completely penetrates the adjusting key in the axial direction of the connecting ring; A fixing block is formed between the two through holes; Adjustment blocks are formed on the opposite sides of the two through holes; top supports are connected to each of the two through holes in a one-to-one correspondence. The fixed block, the two adjusting blocks, the two through holes, the two adjusting slots, and the two top supports together constitute the angle adjusting part; The second clamp head is fixed to the connecting ring; The movable clamp body includes a connecting tube seat slidably connected to the fixed clamp body. The connecting tube seat is cylindrical, and its outer diameter matches the inner diameter of the connecting ring. The first clamp head is fixedly connected to the connecting tube seat. A sliding groove is provided on the outer side of the connecting tube seat, which is arranged parallel to the axis of the connecting ring. The connecting tube seat passes through the connecting ring, and the angle adjustment part is inserted into the sliding groove with a clearance fit.

8. A bench vise as described in claim 7, characterized in that: The fixing clamp body includes a fixing base, the fixing base having a sliding cavity extending through the fixing base, the fixing base being fixedly connected to the connecting ring, and an adjusting sleeve being fixedly attached to the fixing base. The connecting ring is located on the side of the sliding cavity closer to the first clamp head, and the adjusting sleeve is located on the end of the sliding cavity away from the first clamp head. The connecting tube seat is inserted into the sliding cavity. An adjusting screw is provided inside the connecting pipe seat, and the adjusting screw passes through the connecting pipe seat and is rotatably connected to the connecting pipe seat; The adjusting sleeve and the adjusting screw are coaxially arranged with the connecting ring; the adjusting sleeve and the adjusting screw are helically connected.

9. A bench vise as described in claim 8, characterized in that: A rotating cylinder is provided between the connecting ring and the connecting tube seat, and is coaxially arranged with the connecting ring. The rotating cylinder is rotatably connected to the sliding cavity. The rotating cylinder has a positioning hole, and the adjusting key is inserted through the positioning hole. The connecting ring is indirectly fixedly connected to the fixed seat through a fixed connection to the rotating cylinder. The fixed base has a threaded hole, and a locking bolt is helically connected to the threaded hole. The locking bolt abuts against the rotating cylinder.

10. A bench vise, comprising a movable jaw and a fixed jaw, which cooperate with each other, wherein the movable jaw is provided with a first jaw head, and the fixed jaw is provided with a second jaw head arranged facing the first jaw head, characterized in that: The movable clamp body includes a connecting tube seat that is slidably connected to the fixed clamp body. One end of the connecting tube seat is fixed with a protruding ring, and the protruding ring is fitted with a connecting ring. An adjustment key is provided in the space enclosed by the connecting ring. The adjusting key has two through holes arranged parallel to the axis of the connecting ring, the two through holes are arranged symmetrically, and the axis of the connecting ring is located on the plane of symmetry of the two through holes. One side of the adjusting key is fixed to the connecting ring, and the other side of the adjusting key has two adjusting slots arranged in a one-to-one correspondence with the two through holes; each adjusting slot communicates with the corresponding through hole, and each adjusting slot completely penetrates the adjusting key in the axial direction of the connecting ring; A fixing block is formed between the two through holes; Adjustment blocks are formed on the opposite sides of the two through holes; top supports are connected to each of the two through holes in a one-to-one correspondence. The fixed block, the two adjusting blocks, the two through holes, the two adjusting slots, and the two top supports together constitute the angle adjusting part; The first clamp head is fixed to the connecting ring; The outer diameter of the convex ring matches the inner diameter of the connecting ring; The convex ring has a mounting groove, one end of which is close to the fixing clamp and passes through the convex ring. The angle adjustment part is inserted into the mounting groove and is fixedly connected to the mounting groove.

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